Add network remote WIP

.github/workflows/build.yml

@@ -747,7 +747,7 @@ jobs:
         df -h
     - name: Build FreeBSD
       id: build-freebsd
-      uses: vmactions/freebsd-vm@v1.3.5
+      uses: vmactions/freebsd-vm@v1.3.2
       with:
         usesh: true
         mem: 8192
@@ -772,7 +772,7 @@ jobs:
         submodules: recursive
     - name: Build OpenBSD
       id: build-openbsd
-      uses: vmactions/openbsd-vm@v1.3.1
+      uses: vmactions/openbsd-vm@v1.2.9
       with:
         usesh: true
         mem: 4096
@@ -845,7 +845,7 @@ jobs:
           p12-password: ${{ secrets.APPLE_DEVELOPER_ID_CERTIFICATE_PASSWORD }}
 
       - name: Download macOS dependencies
-        run: curl -f -O -L https://github.com/strawberrymusicplayer/strawberry-macos-dependencies/releases/latest/download/strawberry-macos-${{env.arch}}-${{env.buildtype}}.tar.xz
+        run: curl -f -O -L https://github.com/strawberrymusicplayer/strawberry-macos-dependencies$(test "${{env.arch}}" = "x86_64" && echo "-intel" || echo "")/releases/latest/download/strawberry-macos-${{env.arch}}-${{env.buildtype}}.tar.xz
 
       - name: Extract macOS dependencies
         run: sudo tar -C / -xf strawberry-macos-${{env.arch}}-${{env.buildtype}}.tar.xz
@@ -898,7 +898,7 @@ jobs:
       - name: Manually Codesign
         if: github.repository == 'strawberrymusicplayer/strawberry' && github.event.pull_request.head.repo.fork == false && matrix.runner == 'macos-15-intel'
         working-directory: build
-        run: codesign -s 383J84DVB6 -f strawberry.app/Contents/Frameworks/{libpcre2-8.0.dylib,libpcre2-16.0.dylib,libpng16.16.dylib,libfreetype.6.dylib,libzstd.1.dylib,libbrotlicommon.1.dylib,libbrotlienc.1.dylib,libbrotlidec.1.dylib,libsoup-3.0.0.dylib,libnghttp2.14.dylib,libpsl.5.dylib} strawberry.app/Contents/Frameworks/png.framework/png strawberry.app
+        run: codesign -s 383J84DVB6 -f strawberry.app/Contents/Frameworks/{libpcre2-8.0.dylib,libpcre2-16.0.dylib,libpng16.16.dylib,libfreetype.6.dylib,libzstd.1.dylib,libbrotlicommon.1.dylib,libbrotlienc.1.dylib} strawberry.app/Contents/Frameworks/png.framework/png strawberry.app
 
       - name: Manually Codesign
         if: github.repository == 'strawberrymusicplayer/strawberry' && github.event.pull_request.head.repo.fork == false && matrix.runner == 'macos-15'

CMakeLists.txt

@@ -218,7 +218,7 @@ set(QT_VERSION_MAJOR 6)
 set(QT_MIN_VERSION 6.4.0)
 set(QT_DEFAULT_MAJOR_VERSION ${QT_VERSION_MAJOR})
 set(QT_COMPONENTS Core Concurrent Gui Widgets Network Sql)
-set(QT_OPTIONAL_COMPONENTS GuiPrivate LinguistTools Test)
+set(QT_OPTIONAL_COMPONENTS GuiPrivate LinguistTools Test Protobuf)
 if(UNIX AND NOT APPLE)
   list(APPEND QT_OPTIONAL_COMPONENTS DBus)
 endif()
@@ -278,6 +278,7 @@ if(APPLE OR WIN32)
   if(TARGET "qtsparkle-qt${QT_VERSION_MAJOR}::qtsparkle")
     set(QTSPARKLE_FOUND ON)
   endif()
+  pkg_check_modules(TINYSVCMDNS IMPORTED_TARGET tinysvcmdns)
 endif()
 
 if(UNIX AND NOT APPLE)
@@ -381,6 +382,18 @@ optional_component(DISCORD_RPC ON "Discord Rich Presence"
   DEPENDS "RapidJSON" RapidJSON_FOUND
 )
 
+if(WIN32)
+  optional_component(NETWORKREMOTE ON "Network remote"
+    DEPENDS "Qt Protobuf" Qt${QT_VERSION_MAJOR}Protobuf_FOUND
+    DEPENDS "tinysvcmdns" TINYSVCMDNS_FOUND
+  )
+else()
+  optional_component(NETWORKREMOTE ON "Network remote"
+    DEPENDS "Qt Protobuf" Qt${QT_VERSION_MAJOR}Protobuf_FOUND
+  )
+endif()
+
+
 if(HAVE_SONGFINGERPRINTING OR HAVE_MUSICBRAINZ)
   set(HAVE_CHROMAPRINT ON)
 endif()
@@ -759,6 +772,7 @@ set(SOURCES
   src/widgets/loginstatewidget.cpp
   src/widgets/ratingwidget.cpp
   src/widgets/resizabletextedit.cpp
+  src/widgets/filechooserwidget.cpp
 
   src/osd/osdbase.cpp
   src/osd/osdpretty.cpp
@@ -823,8 +837,6 @@ set(SOURCES
 
   src/fileview/fileview.cpp
   src/fileview/fileviewlist.cpp
-  src/fileview/fileviewtree.cpp
-  src/fileview/fileviewtreemodel.cpp
 
   src/device/devicemanager.cpp
   src/device/devicelister.cpp
@@ -1059,6 +1071,7 @@ set(HEADERS
   src/widgets/ratingwidget.h
   src/widgets/forcescrollperpixel.h
   src/widgets/resizabletextedit.h
+  src/widgets/filechooserwidget.h
 
   src/osd/osdbase.h
   src/osd/osdpretty.h
@@ -1114,8 +1127,6 @@ set(HEADERS
 
   src/fileview/fileview.h
   src/fileview/fileviewlist.h
-  src/fileview/fileviewtree.h
-  src/fileview/fileviewtreemodel.h
 
   src/device/devicemanager.h
   src/device/devicelister.h
@@ -1484,6 +1495,57 @@ optional_source(HAVE_QOBUZ
     src/settings/qobuzsettingspage.ui
 )
 
+if(HAVE_NETWORKREMOTE)
+  optional_source(HAVE_NETWORKREMOTE
+    SOURCES
+      src/core/zeroconf.cpp
+      src/networkremote/incomingdataparser.cpp
+      src/networkremote/networkremote.cpp
+      src/networkremote/outgoingdatacreator.cpp
+      src/networkremote/networkremoteclient.cpp
+      src/networkremote/songsender.cpp
+      src/settings/networkremotesettingspage.cpp
+    HEADERS
+      src/networkremote/networkremote.h
+      src/networkremote/incomingdataparser.h
+      src/networkremote/outgoingdatacreator.h
+      src/networkremote/networkremoteclient.h
+      src/networkremote/songsender.h
+      src/settings/networkremotesettingspage.h
+    UI
+      src/settings/networkremotesettingspage.ui
+  )
+  if(UNIX AND NOT APPLE)
+    get_target_property(QT_DBUSXML2CPP_EXECUTABLE Qt${QT_VERSION_MAJOR}::qdbusxml2cpp LOCATION)
+    add_custom_command(
+        OUTPUT
+        ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahiserver.cpp
+        ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahiserver.h
+        COMMAND ${QT_DBUSXML2CPP_EXECUTABLE}
+        ${CMAKE_SOURCE_DIR}/src/avahi/org.freedesktop.Avahi.Server.xml
+        -p ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahiserver
+        -i includes/dbus_metatypes.h
+        DEPENDS src/avahi/org.freedesktop.Avahi.Server.xml
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    )
+    add_custom_command(
+        OUTPUT
+        ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahientrygroup.cpp
+        ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahientrygroup.h
+        COMMAND ${QT_DBUSXML2CPP_EXECUTABLE}
+        ${CMAKE_SOURCE_DIR}/src/avahi/org.freedesktop.Avahi.EntryGroup.xml
+        -p ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahientrygroup
+        -i includes/dbus_metatypes.h
+        DEPENDS src/avahi/org.freedesktop.Avahi.EntryGroup.xml
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    )
+    list(APPEND SOURCES src/avahi/avahi.cpp ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahientrygroup.cpp ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahiserver.cpp)
+    list(APPEND HEADERS src/avahi/avahi.h ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahientrygroup.h ${CMAKE_CURRENT_BINARY_DIR}/avahi/avahiserver.h)
+  endif()
+  optional_source(APPLE SOURCES src/core/bonjour.mm HEADERS src/core/bonjour.h)
+  optional_source(WIN32 SOURCES src/core/tinysvcmdns.cpp HEADERS src/core/tinysvcmdns.h)
+endif()
+
 qt_wrap_cpp(SOURCES ${HEADERS})
 qt_wrap_ui(SOURCES ${UI})
 qt_add_resources(SOURCES data/data.qrc data/icons.qrc)
@@ -1522,6 +1584,12 @@ if(HAVE_TRANSLATIONS)
   endif()
 endif()
 
+if(HAVE_NETWORKREMOTE)
+  qt_add_protobuf(NetworkRemoteMessages
+    PROTO_FILES src/networkremote/networkremotemessages.proto
+  )
+endif()
+
 target_include_directories(strawberry_lib PUBLIC
   ${CMAKE_SOURCE_DIR}
   ${CMAKE_BINARY_DIR}
@@ -1554,6 +1622,7 @@ target_link_libraries(strawberry_lib PUBLIC
   Qt${QT_VERSION_MAJOR}::Sql
   $<$<BOOL:${HAVE_DBUS}>:Qt${QT_VERSION_MAJOR}::DBus>
   $<$<BOOL:${HAVE_QPA_QPLATFORMNATIVEINTERFACE}>:Qt${QT_VERSION_MAJOR}::GuiPrivate>
+  $<$<BOOL:${HAVE_NETWORKREMOTE}>:Qt${QT_VERSION_MAJOR}::Protobuf>
   ICU::uc
   ICU::i18n
   $<$<BOOL:${HAVE_STREAMTAGREADER}>:PkgConfig::LIBSPARSEHASH>
@@ -1573,6 +1642,7 @@ target_link_libraries(strawberry_lib PUBLIC
   $<$<BOOL:${MSVC}>:WindowsApp>
   KDAB::kdsingleapplication
   $<$<BOOL:${HAVE_DISCORD_RPC}>:discord-rpc>
+  $<$<BOOL:${HAVE_NETWORKREMOTE}>:NetworkRemoteMessages>
 )
 
 if(APPLE)
@@ -1591,6 +1661,10 @@ if(APPLE)
   endif()
 endif()
 
+if(WIN32 AND HAVE_NETWORKREMOTE)
+  target_link_libraries(strawberry_lib PUBLIC PkgConfig::TINYSVCMDNS)
+endif()
+
 target_link_libraries(strawberry PUBLIC strawberry_lib)
 
 if(NOT APPLE)

org.freedesktop.Avahi.EntryGroup.xml

@@ -0,0 +1,101 @@
+<?xml version="1.0" standalone='no'?><!--*-nxml-*-->
+<?xml-stylesheet type="text/xsl" href="introspect.xsl"?>
+<!DOCTYPE node SYSTEM "introspect.dtd">
+
+<!--
+  This file is part of avahi.
+
+  avahi is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  avahi is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with avahi; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+  02111-1307 USA.
+-->
+
+<node>
+
+  <interface name="org.freedesktop.DBus.Introspectable">
+    <method name="Introspect">
+      <arg name="data" type="s" direction="out"/>
+    </method>
+  </interface>
+
+  <interface name="org.freedesktop.Avahi.EntryGroup">
+    <method name="Free"/>
+    <method name="Commit"/>
+    <method name="Reset"/>
+
+    <method name="GetState">
+      <arg name="state" type="i" direction="out"/>
+    </method>
+
+    <signal name="StateChanged">
+      <arg name="state" type="i"/>
+      <arg name="error" type="s"/>
+    </signal>
+
+    <method name="IsEmpty">
+      <arg name="empty" type="b" direction="out"/>
+    </method>
+
+    <method name="AddService">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="host" type="s" direction="in"/>
+      <arg name="port" type="q" direction="in"/>
+      <arg name="txt" type="aay" direction="in"/>
+    </method>
+
+    <method name="AddServiceSubtype">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="subtype" type="s" direction="in"/>
+    </method>
+
+    <method name="UpdateServiceTxt">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="txt" type="aay" direction="in"/>
+    </method>
+
+    <method name="AddAddress">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+    </method>
+
+    <method name="AddRecord">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="clazz" type="q" direction="in"/>
+      <arg name="type" type="q" direction="in"/>
+      <arg name="ttl" type="u" direction="in"/>
+      <arg name="rdata" type="ay" direction="in"/>
+    </method>
+  </interface>
+</node>

org.freedesktop.Avahi.Server.xml

@@ -0,0 +1,405 @@
+<?xml version="1.0" standalone='no'?><!--*-nxml-*-->
+<?xml-stylesheet type="text/xsl" href="introspect.xsl"?>
+<!DOCTYPE node SYSTEM "introspect.dtd">
+
+<!--
+  This file is part of avahi.
+
+  avahi is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  avahi is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with avahi; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+  02111-1307 USA.
+-->
+
+<node>
+
+ <interface name="org.freedesktop.DBus.Introspectable">
+    <method name="Introspect">
+      <arg name="data" type="s" direction="out"/>
+    </method>
+  </interface>
+
+  <interface name="org.freedesktop.Avahi.Server">
+
+    <method name="GetVersionString">
+      <arg name="version" type="s" direction="out"/>
+    </method>
+
+    <method name="GetAPIVersion">
+      <arg name="version" type="u" direction="out"/>
+    </method>
+
+    <method name="GetHostName">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="SetHostName">
+      <arg name="name" type="s" direction="in"/>
+    </method>
+    <method name="GetHostNameFqdn">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="GetDomainName">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="IsNSSSupportAvailable">
+      <arg name="yes" type="b" direction="out"/>
+    </method>
+
+    <method name="GetState">
+      <arg name="state" type="i" direction="out"/>
+    </method>
+
+    <signal name="StateChanged">
+      <arg name="state" type="i"/>
+      <arg name="error" type="s"/>
+    </signal>
+
+    <method name="GetLocalServiceCookie">
+      <arg name="cookie" type="u" direction="out"/>
+    </method>
+
+    <method name="GetAlternativeHostName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="GetAlternativeServiceName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="GetNetworkInterfaceNameByIndex">
+      <arg name="index" type="i" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="GetNetworkInterfaceIndexByName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="index" type="i" direction="out"/>
+    </method>
+
+    <method name="ResolveHostName">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="ResolveAddress">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="ResolveService">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="type" type="s" direction="out"/>
+      <arg name="domain" type="s" direction="out"/>
+      <arg name="host" type="s" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="port" type="q" direction="out"/>
+      <arg name="txt" type="aay" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="EntryGroupNew">
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="DomainBrowserNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="btype" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceTypeBrowserNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceBrowserNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceResolverNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="HostNameResolverNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="AddressResolverNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="RecordBrowserNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="clazz" type="q" direction="in"/>
+      <arg name="type" type="q" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+  </interface>
+
+  <interface name="org.freedesktop.Avahi.Server2">
+
+    <method name="GetVersionString">
+      <arg name="version" type="s" direction="out"/>
+    </method>
+
+    <method name="GetAPIVersion">
+      <arg name="version" type="u" direction="out"/>
+    </method>
+
+    <method name="GetHostName">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="SetHostName">
+      <arg name="name" type="s" direction="in"/>
+    </method>
+    <method name="GetHostNameFqdn">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="GetDomainName">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="IsNSSSupportAvailable">
+      <arg name="yes" type="b" direction="out"/>
+    </method>
+
+    <method name="GetState">
+      <arg name="state" type="i" direction="out"/>
+    </method>
+
+    <signal name="StateChanged">
+      <arg name="state" type="i"/>
+      <arg name="error" type="s"/>
+    </signal>
+
+    <method name="GetLocalServiceCookie">
+      <arg name="cookie" type="u" direction="out"/>
+    </method>
+
+    <method name="GetAlternativeHostName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="GetAlternativeServiceName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="GetNetworkInterfaceNameByIndex">
+      <arg name="index" type="i" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="GetNetworkInterfaceIndexByName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="index" type="i" direction="out"/>
+    </method>
+
+    <method name="ResolveHostName">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="ResolveAddress">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="ResolveService">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="type" type="s" direction="out"/>
+      <arg name="domain" type="s" direction="out"/>
+      <arg name="host" type="s" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="port" type="q" direction="out"/>
+      <arg name="txt" type="aay" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="EntryGroupNew">
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="DomainBrowserPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="btype" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceTypeBrowserPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceBrowserPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceResolverPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="HostNameResolverPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="AddressResolverPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="RecordBrowserPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="clazz" type="q" direction="in"/>
+      <arg name="type" type="q" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+  </interface>
+</node>

src/avahi/avahi.cpp

@@ -0,0 +1,114 @@
+/*
+ * Strawberry Music Player
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <QByteArray>
+#include <QString>
+#include <QDBusConnection>
+#include <QDBusPendingReply>
+#include <QDBusPendingCallWatcher>
+
+#include "core/logging.h"
+
+#include "avahi.h"
+#include "avahi/avahiserver.h"
+#include "avahi/avahientrygroup.h"
+
+using namespace Qt::StringLiterals;
+
+Avahi::Avahi(QObject *parent) : Zeroconf(parent), port_(0), entry_group_interface_(nullptr) {}
+
+void Avahi::PublishInternal(const QString &domain, const QString &type, const QByteArray &name, quint16 port) {
+
+  domain_ = domain;
+  type_ = type;
+  name_ = name;
+  port_ = port;
+
+  OrgFreedesktopAvahiServerInterface server_interface(u"org.freedesktop.Avahi"_s, u"/"_s, QDBusConnection::systemBus());
+  QDBusPendingReply<QDBusObjectPath> reply = server_interface.EntryGroupNew();
+  QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply);
+  QObject::connect(watcher, &QDBusPendingCallWatcher::finished, this, &Avahi::PublishInternalFinished);
+
+}
+
+void Avahi::PublishInternalFinished(QDBusPendingCallWatcher *watcher) {
+
+  const QDBusPendingReply<QDBusObjectPath> path_reply = watcher->reply();
+
+  watcher->deleteLater();
+
+  if (path_reply.isError()) {
+    qLog(Error) << "Failed to create Avahi entry group:" << path_reply.error();
+    qLog(Info) << "This might be because 'disable-user-service-publishing'" << "is set to 'yes' in avahi-daemon.conf";
+    return;
+  }
+
+  AddService(path_reply.reply().path());
+
+}
+
+void Avahi::AddService(const QString &path) {
+
+  entry_group_interface_ = new OrgFreedesktopAvahiEntryGroupInterface(u"org.freedesktop.Avahi"_s, path, QDBusConnection::systemBus());
+  QDBusPendingReply<> reply = entry_group_interface_->AddService(-1, -1, 0, QString::fromUtf8(name_.constData(), name_.size()), type_, domain_, QString(), port_);
+  QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply);
+  QObject::connect(watcher, &QDBusPendingCallWatcher::finished, this, &Avahi::AddServiceFinished);
+
+}
+
+void Avahi::AddServiceFinished(QDBusPendingCallWatcher *watcher) {
+
+  const QDBusPendingReply<QDBusObjectPath> path_reply = watcher->reply();
+
+  watcher->deleteLater();
+
+  if (path_reply.isError()) {
+    qLog(Error) << "Failed to add Avahi service:" << path_reply.error();
+    return;
+  }
+
+  Commit();
+
+}
+
+void Avahi::Commit() {
+
+  QDBusPendingReply<> reply = entry_group_interface_->Commit();
+  QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply);
+  QObject::connect(watcher, &QDBusPendingCallWatcher::finished, this, &Avahi::CommitFinished);
+
+}
+
+void Avahi::CommitFinished(QDBusPendingCallWatcher *watcher) {
+
+  const QDBusPendingReply<QDBusObjectPath> path_reply = watcher->reply();
+
+  watcher->deleteLater();
+
+  entry_group_interface_->deleteLater();
+  entry_group_interface_ = nullptr;
+
+  if (path_reply.isError()) {
+    qLog(Debug) << "Commit error:" << path_reply.error();
+  }
+  else {
+    qLog(Debug) << "Remote interface published on Avahi";
+  }
+
+}

src/avahi/avahi.h

@@ -0,0 +1,58 @@
+/*
+ * Strawberry Music Player
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef AVAHI_H
+#define AVAHI_H
+
+#include <QObject>
+#include <QByteArray>
+#include <QString>
+
+#include "core/zeroconf.h"
+
+class QDBusPendingCallWatcher;
+class OrgFreedesktopAvahiEntryGroupInterface;
+
+class Avahi : public Zeroconf {
+  Q_OBJECT
+
+public:
+  explicit Avahi(QObject *parent = nullptr);
+
+ private:
+  void AddService(const QString &path);
+  void Commit();
+
+ private Q_SLOTS:
+  void PublishInternalFinished(QDBusPendingCallWatcher *watcher);
+  void AddServiceFinished(QDBusPendingCallWatcher *watcher);
+  void CommitFinished(QDBusPendingCallWatcher *watcher);
+
+ protected:
+  virtual void PublishInternal(const QString &domain, const QString &type, const QByteArray &name, quint16 port) override;
+
+ private:
+  QString domain_;
+  QString type_;
+  QByteArray name_;
+  quint16 port_;
+  OrgFreedesktopAvahiEntryGroupInterface *entry_group_interface_;
+};
+
+#endif  // AVAHI_H

src/avahi/org.freedesktop.Avahi.EntryGroup.xml

@@ -0,0 +1,98 @@
+<?xml version="1.0" standalone='no'?><!--*-nxml-*-->
+<!DOCTYPE node SYSTEM "introspect.dtd">
+
+<!--
+  This file is part of avahi.
+
+  avahi is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  avahi is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with avahi; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+  02111-1307 USA.
+-->
+
+<node>
+
+  <interface name="org.freedesktop.DBus.Introspectable">
+    <method name="Introspect">
+      <arg name="data" type="s" direction="out"/>
+    </method>
+  </interface>
+
+  <interface name="org.freedesktop.Avahi.EntryGroup">
+    <method name="Free"/>
+    <method name="Commit"/>
+    <method name="Reset"/>
+
+    <method name="GetState">
+      <arg name="state" type="i" direction="out"/>
+    </method>
+
+    <signal name="StateChanged">
+      <arg name="state" type="i"/>
+      <arg name="error" type="s"/>
+    </signal>
+
+    <method name="IsEmpty">
+      <arg name="empty" type="b" direction="out"/>
+    </method>
+
+    <method name="AddService">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="host" type="s" direction="in"/>
+      <arg name="port" type="q" direction="in"/>
+    </method>
+
+    <method name="AddServiceSubtype">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="subtype" type="s" direction="in"/>
+    </method>
+
+    <method name="UpdateServiceTxt">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+    </method>
+
+    <method name="AddAddress">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+    </method>
+
+    <method name="AddRecord">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="clazz" type="q" direction="in"/>
+      <arg name="type" type="q" direction="in"/>
+      <arg name="ttl" type="u" direction="in"/>
+      <arg name="rdata" type="ay" direction="in"/>
+    </method>
+  </interface>
+</node>

src/avahi/org.freedesktop.Avahi.Server.xml

@@ -0,0 +1,396 @@
+<?xml version="1.0" standalone='no'?><!--*-nxml-*-->
+<!DOCTYPE node SYSTEM "introspect.dtd">
+
+<!--
+  This file is part of avahi.
+
+  avahi is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  avahi is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with avahi; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+  02111-1307 USA.
+-->
+
+<node>
+
+  <interface name="org.freedesktop.Avahi.Server">
+
+    <method name="GetVersionString">
+      <arg name="version" type="s" direction="out"/>
+    </method>
+
+    <method name="GetAPIVersion">
+      <arg name="version" type="u" direction="out"/>
+    </method>
+
+    <method name="GetHostName">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="SetHostName">
+      <arg name="name" type="s" direction="in"/>
+    </method>
+    <method name="GetHostNameFqdn">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="GetDomainName">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="IsNSSSupportAvailable">
+      <arg name="yes" type="b" direction="out"/>
+    </method>
+
+    <method name="GetState">
+      <arg name="state" type="i" direction="out"/>
+    </method>
+
+    <signal name="StateChanged">
+      <arg name="state" type="i"/>
+      <arg name="error" type="s"/>
+    </signal>
+
+    <method name="GetLocalServiceCookie">
+      <arg name="cookie" type="u" direction="out"/>
+    </method>
+
+    <method name="GetAlternativeHostName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="GetAlternativeServiceName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="GetNetworkInterfaceNameByIndex">
+      <arg name="index" type="i" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="GetNetworkInterfaceIndexByName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="index" type="i" direction="out"/>
+    </method>
+
+    <method name="ResolveHostName">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="ResolveAddress">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="ResolveService">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="type" type="s" direction="out"/>
+      <arg name="domain" type="s" direction="out"/>
+      <arg name="host" type="s" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="port" type="q" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="EntryGroupNew">
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="DomainBrowserNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="btype" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceTypeBrowserNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceBrowserNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceResolverNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="HostNameResolverNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="AddressResolverNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="RecordBrowserNew">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="clazz" type="q" direction="in"/>
+      <arg name="type" type="q" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+  </interface>
+
+  <interface name="org.freedesktop.Avahi.Server2">
+
+    <method name="GetVersionString">
+      <arg name="version" type="s" direction="out"/>
+    </method>
+
+    <method name="GetAPIVersion">
+      <arg name="version" type="u" direction="out"/>
+    </method>
+
+    <method name="GetHostName">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="SetHostName">
+      <arg name="name" type="s" direction="in"/>
+    </method>
+    <method name="GetHostNameFqdn">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="GetDomainName">
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="IsNSSSupportAvailable">
+      <arg name="yes" type="b" direction="out"/>
+    </method>
+
+    <method name="GetState">
+      <arg name="state" type="i" direction="out"/>
+    </method>
+
+    <signal name="StateChanged">
+      <arg name="state" type="i"/>
+      <arg name="error" type="s"/>
+    </signal>
+
+    <method name="GetLocalServiceCookie">
+      <arg name="cookie" type="u" direction="out"/>
+    </method>
+
+    <method name="GetAlternativeHostName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="GetAlternativeServiceName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+
+    <method name="GetNetworkInterfaceNameByIndex">
+      <arg name="index" type="i" direction="in"/>
+      <arg name="name" type="s" direction="out"/>
+    </method>
+    <method name="GetNetworkInterfaceIndexByName">
+      <arg name="name" type="s" direction="in"/>
+      <arg name="index" type="i" direction="out"/>
+    </method>
+
+    <method name="ResolveHostName">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="ResolveAddress">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="ResolveService">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="interface" type="i" direction="out"/>
+      <arg name="protocol" type="i" direction="out"/>
+      <arg name="name" type="s" direction="out"/>
+      <arg name="type" type="s" direction="out"/>
+      <arg name="domain" type="s" direction="out"/>
+      <arg name="host" type="s" direction="out"/>
+      <arg name="aprotocol" type="i" direction="out"/>
+      <arg name="address" type="s" direction="out"/>
+      <arg name="port" type="q" direction="out"/>
+      <arg name="flags" type="u" direction="out"/>
+    </method>
+
+    <method name="EntryGroupNew">
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="DomainBrowserPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="btype" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceTypeBrowserPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceBrowserPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="ServiceResolverPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="type" type="s" direction="in"/>
+      <arg name="domain" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="HostNameResolverPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="aprotocol" type="i" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="AddressResolverPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="address" type="s" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+    <method name="RecordBrowserPrepare">
+      <arg name="interface" type="i" direction="in"/>
+      <arg name="protocol" type="i" direction="in"/>
+      <arg name="name" type="s" direction="in"/>
+      <arg name="clazz" type="q" direction="in"/>
+      <arg name="type" type="q" direction="in"/>
+      <arg name="flags" type="u" direction="in"/>
+
+      <arg name="path" type="o" direction="out"/>
+    </method>
+
+  </interface>
+</node>

src/collection/collectionview.cpp

@@ -383,7 +383,7 @@ void CollectionView::keyPressEvent(QKeyEvent *e) {
     case Qt::Key_Enter:
     case Qt::Key_Return:
       if (currentIndex().isValid()) {
-        Q_EMIT doubleClicked(currentIndex());
+        AddToPlaylist();
       }
       e->accept();
       break;

src/config.h.in

@@ -33,6 +33,7 @@
 #cmakedefine HAVE_SPOTIFY
 #cmakedefine HAVE_QOBUZ
 #cmakedefine HAVE_DISCORD_RPC
+#cmakedefine HAVE_NETWORKREMOTE
 
 #cmakedefine HAVE_TAGLIB_DSFFILE
 #cmakedefine HAVE_TAGLIB_DSDIFFFILE

src/constants/filefilterconstants.h

@@ -33,7 +33,7 @@ constexpr char kFileFilter[] =
     "*.mod *.s3m *.xm *.it "
     "*.spc *.vgm";
 
-constexpr char kLoadImageFileFilter[] = QT_TRANSLATE_NOOP("FileFilter", "Images (*.png *.jpg *.jpeg *.bmp *.gif *.xpm *.pbm *.pgm *.ppm *.xbm *.webp)");
-constexpr char kSaveImageFileFilter[] = QT_TRANSLATE_NOOP("FileFilter", "Images (*.png *.jpg *.jpeg *.bmp *.xpm *.pbm *.ppm *.xbm *.webp)");
+constexpr char kLoadImageFileFilter[] = QT_TRANSLATE_NOOP("FileFilter", "Images (*.png *.jpg *.jpeg *.bmp *.gif *.xpm *.pbm *.pgm *.ppm *.xbm)");
+constexpr char kSaveImageFileFilter[] = QT_TRANSLATE_NOOP("FileFilter", "Images (*.png *.jpg *.jpeg *.bmp *.xpm *.pbm *.ppm *.xbm)");
 
 #endif  // FILEFILTERCONSTANTS_H

src/constants/networkremoteconstants.h

@@ -0,0 +1,36 @@
+/*
+* Strawberry Music Player
+* Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+*
+* Strawberry is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* Strawberry is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef NETWORKREMOTECONSTANTS_H
+#define NETWORKREMOTECONSTANTS_H
+
+#include <QStringList>
+
+using namespace Qt::Literals::StringLiterals;
+
+namespace NetworkRemoteConstants {
+
+const QStringList kDefaultMusicExtensionsAllowedRemotely = { u"aac"_s, u"alac"_s, u"flac"_s, u"m3u"_s, u"m4a"_s, u"mp3"_s, u"ogg"_s, u"wav"_s, u"wmv"_s };
+constexpr quint16 kDefaultServerPort = 5500;
+constexpr char kTranscoderSettingPostfix[] = "/NetworkRemote";
+constexpr quint32 kFileChunkSize = 100000;
+
+}  // namespace NetworkRemoteConstants
+
+#endif // NETWORKREMOTECONSTANTS_H

src/constants/networkremotesettingsconstants.h

@@ -0,0 +1,35 @@
+/*
+* Strawberry Music Player
+* Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+*
+* Strawberry is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* Strawberry is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef NETWORKREMOTESETTINGSCONSTANTS_H
+#define NETWORKREMOTESETTINGSCONSTANTS_H
+
+namespace NetworkRemoteSettingsConstants {
+
+constexpr char kSettingsGroup[] = "NetworkRemote";
+constexpr char kEnabled[] = "enabled";
+constexpr char kPort[] = "port";
+constexpr char kAllowPublicAccess[] = "allow_public_access";
+constexpr char kUseAuthCode[] = "use_authcode";
+constexpr char kAuthCode[] = "authcode";
+constexpr char kFilesRootFolder[] = "files_root_folder";
+
+}  // namespace NetworkRemoteSettingsConstants
+
+#endif // NETWORKREMOTESETTINGSCONSTANTS_H

src/constants/scrobblersettings.h

@@ -34,7 +34,6 @@ constexpr char kShowErrorDialog[] = "show_error_dialog";
 constexpr char kStripRemastered[] = "strip_remastered";
 constexpr char kSources[] = "sources";
 constexpr char kUserToken[] = "user_token";
-constexpr char kApiKey[] = "api_key";
 
 }  // namespace ScrobblerSettings
 

src/core/application.cpp

@@ -110,6 +110,10 @@
 #  include "moodbar/moodbarloader.h"
 #endif
 
+#ifdef HAVE_NETWORKREMOTE
+#  include "networkremote/networkremote.h"
+#endif
+
 #include "radios/radioservices.h"
 #include "radios/radiobackend.h"
 
@@ -216,6 +220,13 @@ class ApplicationImpl {
 #ifdef HAVE_MOODBAR
         moodbar_loader_([app]() { return new MoodbarLoader(app); }),
         moodbar_controller_([app]() { return new MoodbarController(app->player(), app->moodbar_loader()); }),
+#endif
+#ifdef HAVE_NETWORKREMOTE
+        network_remote_([app]() {
+          NetworkRemote *networkremote = new NetworkRemote(app->database(), app->player(), app->collection_backend(), app->playlist_manager(), app->playlist_backend(), app->current_albumcover_loader(), app->scrobbler());
+          app->MoveToNewThread(networkremote);
+          return networkremote;
+        }),
 #endif
         lastfm_import_([app]() { return new LastFMImport(app->network()); })
   {}
@@ -241,6 +252,9 @@ class ApplicationImpl {
 #ifdef HAVE_MOODBAR
   Lazy<MoodbarLoader> moodbar_loader_;
   Lazy<MoodbarController> moodbar_controller_;
+#endif
+#ifdef HAVE_NETWORKREMOTE
+  Lazy<NetworkRemote> network_remote_;
 #endif
   Lazy<LastFMImport> lastfm_import_;
 
@@ -390,3 +404,6 @@ SharedPtr<LastFMImport> Application::lastfm_import() const { return p_->lastfm_i
 SharedPtr<MoodbarController> Application::moodbar_controller() const { return p_->moodbar_controller_.ptr(); }
 SharedPtr<MoodbarLoader> Application::moodbar_loader() const { return p_->moodbar_loader_.ptr(); }
 #endif
+#ifdef HAVE_NETWORKREMOTE
+SharedPtr<NetworkRemote> Application::network_remote() const { return p_->network_remote_.ptr(); }
+#endif

src/core/application.h

@@ -63,6 +63,9 @@ class RadioServices;
 class MoodbarController;
 class MoodbarLoader;
 #endif
+#ifdef HAVE_NETWORKREMOTE
+class NetworkRemote;
+#endif
 
 class Application : public QObject {
   Q_OBJECT
@@ -103,6 +106,10 @@ class Application : public QObject {
   SharedPtr<MoodbarLoader> moodbar_loader() const;
 #endif
 
+#ifdef HAVE_NETWORKREMOTE
+  SharedPtr<NetworkRemote> network_remote() const;
+#endif
+
   SharedPtr<LastFMImport> lastfm_import() const;
 
   void Exit();

src/core/bonjour.h

@@ -0,0 +1,24 @@
+#ifndef BONJOUR_H
+#define BONJOUR_H
+
+#include "zeroconf.h"
+
+#ifdef __OBJC__
+@class NetServicePublicationDelegate;
+#else
+class NetServicePublicationDelegate;
+#endif  // __OBJC__
+
+class Bonjour : public Zeroconf {
+ public:
+  explicit Bonjour();
+  virtual ~Bonjour();
+
+ protected:
+  virtual void PublishInternal(const QString &domain, const QString &type, const QByteArray &name, const quint16 port);
+
+ private:
+  NetServicePublicationDelegate *delegate_;
+};
+
+#endif  // BONJOUR_H

src/core/bonjour.mm

@@ -0,0 +1,57 @@
+#include "bonjour.h"
+
+#import <Foundation/NSNetServices.h>
+#import <Foundation/NSString.h>
+
+#include "core/logging.h"
+#include "core/scoped_nsautorelease_pool.h"
+
+@interface NetServicePublicationDelegate : NSObject <NSNetServiceDelegate> {}
+
+- (void)netServiceWillPublish:(NSNetService*)netService;
+- (void)netService:(NSNetService*)netService didNotPublish:(NSDictionary*)errorDict;
+- (void)netServiceDidStop:(NSNetService*)netService;
+
+@end
+
+@implementation NetServicePublicationDelegate
+
+- (void)netServiceWillPublish:(NSNetService*)netService {
+  qLog(Debug) << "Publishing:" << [[netService name] UTF8String];
+}
+
+- (void)netService:(NSNetService*)netServie didNotPublish:(NSDictionary*)errorDict {
+  qLog(Debug) << "Failed to publish remote service with Bonjour";
+  NSLog(@"%@", errorDict);
+}
+
+- (void)netServiceDidStop:(NSNetService*)netService {
+  qLog(Debug) << "Unpublished:" << [[netService name] UTF8String];
+}
+
+@end
+
+namespace {
+
+NSString* NSStringFromQString(const QString& s) {
+  return [[NSString alloc] initWithUTF8String:s.toUtf8().constData()];
+}
+}
+
+Bonjour::Bonjour() : delegate_([[NetServicePublicationDelegate alloc] init]) {}
+
+Bonjour::~Bonjour() { [delegate_ release]; }
+
+void Bonjour::PublishInternal(const QString& domain, const QString& type, const QByteArray& name, const quint16 port) {
+  ScopedNSAutoreleasePool pool;
+  NSNetService* service =
+      [[NSNetService alloc] initWithDomain:NSStringFromQString(domain)
+                                      type:NSStringFromQString(type)
+                                      name:[NSString stringWithUTF8String:name.constData()]
+                                      port:port];
+  if (service) {
+    [service setDelegate:delegate_];
+    [service publish];
+  }
+
+}

src/core/mainwindow.cpp

@@ -977,6 +977,10 @@ MainWindow::MainWindow(Application *app,
   ui_->action_open_cd->setVisible(false);
 #endif
 
+#ifdef HAVE_NETWORKREMOTE
+  app_->network_remote();
+#endif
+
   // Load settings
   qLog(Debug) << "Loading settings";
   Settings settings;

src/core/mainwindow.h

@@ -43,6 +43,7 @@
 #include <QString>
 #include <QUrl>
 #include <QImage>
+#include <QPixmap>
 #include <QTimer>
 #include <QtEvents>
 
@@ -289,6 +290,9 @@ class MainWindow : public QMainWindow, public PlatformInterface {
 
   void CheckFullRescanRevisions();
 
+  // creates the icon by painting the full one depending on the current position
+  QPixmap CreateOverlayedIcon(const int position, const int scrobble_point);
+
   void GetCoverAutomatically();
 
   void SetToggleScrobblingIcon(const bool value);

src/core/mimedata.cpp

@@ -25,14 +25,15 @@
 
 #include "mimedata.h"
 
-MimeData::MimeData(const bool clear, const bool play_now, const bool enqueue, const bool enqueue_next_now, const bool open_in_new_playlist, QObject *parent)
+MimeData::MimeData(const bool clear, const bool play_now, const bool enqueue, const bool enqueue_next_now, const bool open_in_new_playlist, const int playlist_id, QObject *parent)
     : override_user_settings_(false),
       clear_first_(clear),
       play_now_(play_now),
       enqueue_now_(enqueue),
       enqueue_next_now_(enqueue_next_now),
       open_in_new_playlist_(open_in_new_playlist),
-      from_doubleclick_(false) {
+      from_doubleclick_(false),
+      playlist_id_(playlist_id) {
 
   Q_UNUSED(parent);
 

src/core/mimedata.h

@@ -29,7 +29,7 @@ class MimeData : public QMimeData {
   Q_OBJECT
 
  public:
-  explicit MimeData(const bool clear = false, const bool play_now = false, const bool enqueue = false, const bool enqueue_next_now = false, const bool open_in_new_playlist = false, QObject *parent = nullptr);
+  explicit MimeData(const bool clear = false, const bool play_now = false, const bool enqueue = false, const bool enqueue_next_now = false, const bool open_in_new_playlist = false, const int playlist_id = -1, QObject *parent = nullptr);
 
   // If this is set then MainWindow will not touch any of the other flags.
   bool override_user_settings_;
@@ -57,6 +57,9 @@ class MimeData : public QMimeData {
   // The MainWindow will set the above flags to the defaults set by the user.
   bool from_doubleclick_;
 
+  // The Network Remote can use this MimeData to drop songs on another playlist than the one currently opened on the server
+  int playlist_id_;
+
   // Returns a pretty name for a playlist containing songs described by this MimeData object.
   // By pretty name we mean the value of 'name_for_new_playlist_' or generic "Playlist" string if the 'name_for_new_playlist_' attribute is empty.
   QString get_name_for_new_playlist() const;

src/core/song.cpp

@@ -1668,24 +1668,12 @@ void Song::InitArtManual() {
 void Song::InitArtAutomatic() {
 
   if (d->art_automatic_.isEmpty() && d->source_ == Source::LocalFile && d->url_.isLocalFile()) {
-    const QFileInfo fileinfo(d->url_.toLocalFile());
-    const QDir dir(fileinfo.path());
-    const QStringList cover_files = dir.entryList(QStringList() << u"*.jpg"_s << u"*.png"_s << u"*.gif"_s << u"*.jpeg"_s, QDir::Files|QDir::Readable, QDir::Name);
-    QString best_cover_file;
-    for (const QString &cover_file : cover_files) {
-      if (cover_file.contains("back"_L1, Qt::CaseInsensitive)) {
-        continue;
-      }
-      if (cover_file.contains("front"_L1, Qt::CaseInsensitive) || cover_file.startsWith("cover"_L1, Qt::CaseInsensitive)) {
-        best_cover_file = cover_file;
-        break;
-      }
-      if (best_cover_file.isEmpty()) {
-        best_cover_file = cover_file;
-      }
-    }
-    if (!best_cover_file.isEmpty()) {
-      d->art_automatic_ = QUrl::fromLocalFile(fileinfo.path() + QDir::separator() + best_cover_file);
+    // Pick the first image file in the album directory.
+    QFileInfo file(d->url_.toLocalFile());
+    QDir dir(file.path());
+    QStringList files = dir.entryList(QStringList() << u"*.jpg"_s << u"*.png"_s << u"*.gif"_s << u"*.jpeg"_s, QDir::Files|QDir::Readable, QDir::Name);
+    if (files.count() > 0) {
+      d->art_automatic_ = QUrl::fromLocalFile(file.path() + QDir::separator() + files.first());
     }
   }
 

src/core/tinysvcmdns.cpp

@@ -0,0 +1,86 @@
+extern "C" {
+#include "mdnsd.h"
+}
+
+#include <QObject>
+#include <QList>
+#include <QString>
+#include <QHostInfo>
+#include <QNetworkInterface>
+#include <QtEndian>
+
+#include "tinysvcmdns.h"
+#include "core/logging.h"
+
+using namespace Qt::Literals::StringLiterals;
+
+TinySVCMDNS::TinySVCMDNS(QObject *parent) : Zeroconf(parent) {
+
+  // Get all network interfaces
+  const QList<QNetworkInterface> network_interfaces = QNetworkInterface::allInterfaces();
+  for (const QNetworkInterface &network_interface : network_interfaces) {
+    // Only use up and non loopback interfaces
+    if (network_interface.flags().testFlag(network_interface.IsUp) && !network_interface.flags().testFlag(network_interface.IsLoopBack)) {
+
+      qLog(Debug) << "Interface" << network_interface.humanReadableName();
+
+      uint32_t ipv4 = 0;
+      QString ipv6;
+
+      // Now check all network addresses for this device
+      QList<QNetworkAddressEntry> network_address_entries = network_interface.addressEntries();
+
+      for (QNetworkAddressEntry network_address_entry : network_address_entries) {
+        QHostAddress host_address = network_address_entry.ip();
+        if (host_address.protocol() == QAbstractSocket::IPv4Protocol) {
+          ipv4 = qToBigEndian(host_address.toIPv4Address());
+          qLog(Debug) << "  ipv4:" << host_address.toString();
+        }
+        else if (host_address.protocol() == QAbstractSocket::IPv6Protocol) {
+          ipv6 = host_address.toString();
+          qLog(Debug) << "  ipv6:" << host_address.toString();
+        }
+      }
+
+      // Now start the service
+      CreateMdnsd(ipv4, ipv6);
+    }
+  }
+
+}
+
+TinySVCMDNS::~TinySVCMDNS() {
+
+  for (mdnsd *mdnsd : std::as_const(mdnsd_)) {
+    mdnsd_stop(mdnsd);
+  }
+
+}
+
+void TinySVCMDNS::CreateMdnsd(const uint32_t ipv4, const QString &ipv6) {
+
+  const QString host = QHostInfo::localHostName();
+
+  // Start the service
+  mdnsd *mdnsd = mdnsd_start();
+
+  // Set our hostname
+  const QString fullhostname = host + ".local"_L1;
+  mdnsd_set_hostname(mdnsd, fullhostname.toUtf8().constData(), ipv4);
+
+  // Add to the list
+  mdnsd_.append(mdnsd);
+
+}
+
+void TinySVCMDNS::PublishInternal(const QString &domain, const QString &type, const QByteArray &name, const quint16 port) {
+
+  // Some pointless text, so tinymDNS publishes the service correctly.
+  const char *txt[] = { "cat=nyan", nullptr };
+
+  for (mdnsd *mdnsd : mdnsd_) {
+    const QString fulltype = type + ".local"_L1;
+    mdnsd_register_svc(mdnsd, name.constData(), fulltype.toUtf8().constData(), port, nullptr, txt);
+  }
+
+}

src/core/tinysvcmdns.h

@@ -0,0 +1,26 @@
+#ifndef TINYSVCMDNS_H
+#define TINYSVCMDNS_H
+
+#include <QList>
+#include <QByteArray>
+#include <QString>
+
+#include "zeroconf.h"
+
+struct mdnsd;
+
+class TinySVCMDNS : public Zeroconf {
+
+ public:
+  explicit TinySVCMDNS(QObject *parent = nullptr);
+  virtual ~TinySVCMDNS();
+
+ protected:
+  virtual void PublishInternal(const QString &domain, const QString &type, const QByteArray &name, const quint16 port) override;
+
+ private:
+  void CreateMdnsd(const uint32_t ipv4, const QString &ipv6);
+  QList<mdnsd*> mdnsd_;
+};
+
+#endif  // TINYSVCMDNS_H

src/core/zeroconf.cpp

@@ -0,0 +1,69 @@
+#include "config.h"
+
+#include <QObject>
+#include <QByteArray>
+#include <QString>
+
+#ifdef HAVE_DBUS
+#  include "avahi/avahi.h"
+#endif
+
+#ifdef Q_OS_DARWIN
+#  include "bonjour.h"
+#endif
+
+#ifdef Q_OS_WIN32
+#  include "tinysvcmdns.h"
+#endif
+
+#include "zeroconf.h"
+
+Zeroconf *Zeroconf::sInstance = nullptr;
+
+Zeroconf::Zeroconf(QObject *parent) : QObject(parent) {}
+
+Zeroconf::~Zeroconf() = default;
+
+Zeroconf *Zeroconf::GetZeroconf() {
+
+  if (!sInstance) {
+#ifdef HAVE_DBUS
+    sInstance = new Avahi;
+#endif  // HAVE_DBUS
+
+#ifdef Q_OS_DARWIN
+    sInstance = new Bonjour;
+#endif
+
+#ifdef Q_OS_WIN32
+    sInstance = new TinySVCMDNS;
+#endif
+  }
+
+  return sInstance;
+
+}
+
+QByteArray Zeroconf::TruncateName(const QString &name) {
+
+  QByteArray truncated_utf8;
+  for (const QChar c : name) {
+    if (truncated_utf8.size() + 1 >= 63) {
+      break;
+    }
+    truncated_utf8 += c.toLatin1();
+  }
+
+  // NULL-terminate the string.
+  truncated_utf8.append('\0');
+
+  return truncated_utf8;
+
+}
+
+void Zeroconf::Publish(const QString &domain, const QString &type, const QString &name, quint16 port) {
+
+  const QByteArray truncated_name = TruncateName(name);
+  PublishInternal(domain, type, truncated_name, port);
+
+}

src/core/zeroconf.h

@@ -0,0 +1,28 @@
+#ifndef ZEROCONF_H
+#define ZEROCONF_H
+
+#include <QObject>
+#include <QByteArray>
+#include <QString>
+
+class Zeroconf : public QObject {
+
+ public:
+  explicit Zeroconf(QObject *parent);
+  virtual ~Zeroconf();
+
+  void Publish(const QString &domain, const QString &type, const QString &name, quint16 port);
+
+  static Zeroconf *GetZeroconf();
+
+  // Truncate a QString to 63 bytes of UTF-8.
+  static QByteArray TruncateName(const QString &name);
+
+ protected:
+  virtual void PublishInternal(const QString &domain, const QString &type, const QByteArray &name, quint16 port) = 0;
+
+ private:
+  static Zeroconf *sInstance;
+};
+
+#endif  // ZEROCONF_H

src/fileview/fileview.cpp

@@ -29,17 +29,13 @@
 #include <QString>
 #include <QStringList>
 #include <QUrl>
-#include <QStandardPaths>
+#include <QSettings>
 #include <QMessageBox>
 #include <QScrollBar>
 #include <QLineEdit>
 #include <QToolButton>
-#include <QFileDialog>
-#include <QSpacerItem>
 #include <QtEvents>
 
-#include "constants/appearancesettings.h"
-#include "constants/filefilterconstants.h"
 #include "includes/shared_ptr.h"
 #include "core/deletefiles.h"
 #include "core/filesystemmusicstorage.h"
@@ -49,11 +45,10 @@
 #include "dialogs/deleteconfirmationdialog.h"
 #include "fileview.h"
 #include "fileviewlist.h"
-#include "fileviewtree.h"
-#include "fileviewtreemodel.h"
-#include "fileviewtreeitem.h"
 #include "ui_fileview.h"
 #include "organize/organizeerrordialog.h"
+#include "constants/appearancesettings.h"
+#include "constants/filefilterconstants.h"
 
 using std::make_unique;
 using namespace Qt::Literals::StringLiterals;
@@ -62,12 +57,9 @@ FileView::FileView(QWidget *parent)
     : QWidget(parent),
       ui_(new Ui_FileView),
       model_(nullptr),
-      tree_model_(nullptr),
       undo_stack_(new QUndoStack(this)),
       task_manager_(nullptr),
-      storage_(new FilesystemMusicStorage(Song::Source::LocalFile, u"/"_s)),
-      tree_view_active_(false),
-      view_mode_spacer_(nullptr) {
+      storage_(new FilesystemMusicStorage(Song::Source::LocalFile, u"/"_s)) {
 
   ui_->setupUi(this);
 
@@ -76,14 +68,12 @@ FileView::FileView(QWidget *parent)
   ui_->forward->setIcon(IconLoader::Load(u"go-next"_s));
   ui_->home->setIcon(IconLoader::Load(u"go-home"_s));
   ui_->up->setIcon(IconLoader::Load(u"go-up"_s));
-  ui_->toggle_view->setIcon(IconLoader::Load(u"view-choose"_s));
 
   QObject::connect(ui_->back, &QToolButton::clicked, undo_stack_, &QUndoStack::undo);
   QObject::connect(ui_->forward, &QToolButton::clicked, undo_stack_, &QUndoStack::redo);
   QObject::connect(ui_->home, &QToolButton::clicked, this, &FileView::FileHome);
   QObject::connect(ui_->up, &QToolButton::clicked, this, &FileView::FileUp);
   QObject::connect(ui_->path, &QLineEdit::textChanged, this, &FileView::ChangeFilePath);
-  QObject::connect(ui_->toggle_view, &QToolButton::clicked, this, &FileView::ToggleViewMode);
 
   QObject::connect(undo_stack_, &QUndoStack::canUndoChanged, ui_->back, &FileView::setEnabled);
   QObject::connect(undo_stack_, &QUndoStack::canRedoChanged, ui_->forward, &FileView::setEnabled);
@@ -97,22 +87,6 @@ FileView::FileView(QWidget *parent)
   QObject::connect(ui_->list, &FileViewList::Delete, this, &FileView::Delete);
   QObject::connect(ui_->list, &FileViewList::EditTags, this, &FileView::EditTags);
 
-  // Connect tree view signals
-  QObject::connect(ui_->tree, &FileViewTree::AddToPlaylist, this, &FileView::AddToPlaylist);
-  QObject::connect(ui_->tree, &FileViewTree::CopyToCollection, this, &FileView::CopyToCollection);
-  QObject::connect(ui_->tree, &FileViewTree::MoveToCollection, this, &FileView::MoveToCollection);
-  QObject::connect(ui_->tree, &FileViewTree::CopyToDevice, this, &FileView::CopyToDevice);
-  QObject::connect(ui_->tree, &FileViewTree::Delete, this, &FileView::Delete);
-  QObject::connect(ui_->tree, &FileViewTree::EditTags, this, &FileView::EditTags);
-  QObject::connect(ui_->tree, &FileViewTree::activated, this, &FileView::ItemActivated);
-  QObject::connect(ui_->tree, &FileViewTree::doubleClicked, this, &FileView::ItemDoubleClick);
-
-  // Setup tree root management buttons
-  ui_->add_tree_root->setIcon(IconLoader::Load(u"folder-new"_s));
-  ui_->remove_tree_root->setIcon(IconLoader::Load(u"list-remove"_s));
-  QObject::connect(ui_->add_tree_root, &QToolButton::clicked, this, &FileView::AddRootButtonClicked);
-  QObject::connect(ui_->remove_tree_root, &QToolButton::clicked, this, &FileView::RemoveRootButtonClicked);
-
   QString filter = QLatin1String(kFileFilter);
   filter_list_ << filter.split(u' ');
 
@@ -135,19 +109,6 @@ void FileView::ReloadSettings() {
   ui_->forward->setIconSize(QSize(iconsize, iconsize));
   ui_->home->setIconSize(QSize(iconsize, iconsize));
   ui_->up->setIconSize(QSize(iconsize, iconsize));
-  ui_->toggle_view->setIconSize(QSize(iconsize, iconsize));
-  ui_->add_tree_root->setIconSize(QSize(iconsize, iconsize));
-  ui_->remove_tree_root->setIconSize(QSize(iconsize, iconsize));
-
-  // Load tree root paths setting
-  Settings file_settings;
-  file_settings.beginGroup(u"FileView"_s);
-  tree_root_paths_ = file_settings.value(u"tree_root_paths"_s, QStandardPaths::standardLocations(QStandardPaths::StandardLocation::MusicLocation)).toStringList();
-  tree_view_active_ = file_settings.value(u"tree_view_active"_s, false).toBool();
-  file_settings.endGroup();
-
-  // Set initial view mode
-  UpdateViewModeUI();
 
 }
 
@@ -219,46 +180,24 @@ void FileView::ChangeFilePathWithoutUndo(const QString &new_path) {
 }
 
 void FileView::ItemActivated(const QModelIndex &idx) {
-  // Only handle activation for list view (not tree view)
-  if (!tree_view_active_ && model_->isDir(idx)) {
+  if (model_->isDir(idx))
     ChangeFilePath(model_->filePath(idx));
-  }
 }
 
 void FileView::ItemDoubleClick(const QModelIndex &idx) {
 
-  QString file_path;
-  bool is_file = false;
-
-  // Handle tree view with virtual roots
-  if (tree_view_active_ && tree_model_) {
-    QVariant type_var = tree_model_->data(idx, FileViewTreeModel::Role_Type);
-    if (type_var.isValid()) {
-      FileViewTreeItem::Type item_type = type_var.value<FileViewTreeItem::Type>();
-      // Only handle files, ignore directories and virtual roots
-      if (item_type == FileViewTreeItem::Type::File) {
-        file_path = tree_model_->data(idx, FileViewTreeModel::Role_FilePath).toString();
-        is_file = true;
-      }
-    }
-  }
-  // Handle list view with filesystem model
-  else if (!tree_view_active_ && model_) {
-    if (!model_->isDir(idx)) {
-      file_path = model_->filePath(idx);
-      is_file = true;
-    }
+  if (model_->isDir(idx)) {
+    return;
   }
 
-  // Add file to playlist if it's a valid file
-  if (is_file && !file_path.isEmpty()) {
-    MimeData *mimedata = new MimeData;
-    mimedata->from_doubleclick_ = true;
-    mimedata->setUrls(QList<QUrl>() << QUrl::fromLocalFile(file_path));
-    mimedata->name_for_new_playlist_ = file_path;
+  QString file_path = model_->filePath(idx);
 
-    Q_EMIT AddToPlaylist(mimedata);
-  }
+  MimeData *mimedata = new MimeData;
+  mimedata->from_doubleclick_ = true;
+  mimedata->setUrls(QList<QUrl>() << QUrl::fromLocalFile(file_path));
+  mimedata->name_for_new_playlist_ = file_path;
+
+  Q_EMIT AddToPlaylist(mimedata);
 
 }
 
@@ -333,156 +272,12 @@ void FileView::showEvent(QShowEvent *e) {
   model_->setNameFilterDisables(false);
 
   ui_->list->setModel(model_);
-
-  // Create tree model
-  tree_model_ = new FileViewTreeModel(this);
-  tree_model_->SetNameFilters(filter_list_);
-
-  SetupTreeView();
-
   ChangeFilePathWithoutUndo(QDir::homePath());
 
   if (!lazy_set_path_.isEmpty()) ChangeFilePathWithoutUndo(lazy_set_path_);
 
 }
 
-void FileView::SetupTreeView() {
-
-  // Use the new tree model with virtual roots
-  ui_->tree->setModel(tree_model_);
-
-  // Set the root paths in the model
-  tree_model_->SetRootPaths(tree_root_paths_);
-
-  // No need to set root index - the model handles virtual roots
-
-}
-
-void FileView::ToggleViewMode() {
-
-  tree_view_active_ = !tree_view_active_;
-  UpdateViewModeUI();
-
-  // Save the preference
-  Settings s;
-  s.beginGroup(u"FileView"_s);
-  s.setValue(u"tree_view_active"_s, tree_view_active_);
-  s.endGroup();
-
-}
-
-void FileView::UpdateViewModeUI() {
-
-  if (tree_view_active_) {
-    ui_->view_stack->setCurrentWidget(ui_->tree_page);
-    // Hide navigation controls in tree view mode
-    ui_->back->setVisible(false);
-    ui_->forward->setVisible(false);
-    ui_->up->setVisible(false);
-    ui_->home->setVisible(false);
-    ui_->path->setVisible(false);
-    // Show tree root management buttons
-    ui_->add_tree_root->setVisible(true);
-    ui_->remove_tree_root->setVisible(true);
-    // Insert spacer in tree view if not already present
-    if (!view_mode_spacer_) {
-      view_mode_spacer_ = new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum);
-      ui_->horizontalLayout->insertSpacerItem(ui_->horizontalLayout->indexOf(ui_->toggle_view), view_mode_spacer_);
-    }
-  }
-  else {
-    ui_->view_stack->setCurrentWidget(ui_->list_page);
-    // Show navigation controls in list view mode
-    ui_->back->setVisible(true);
-    ui_->forward->setVisible(true);
-    ui_->up->setVisible(true);
-    ui_->home->setVisible(true);
-    ui_->path->setVisible(true);
-    // Hide tree root management buttons in list view
-    ui_->add_tree_root->setVisible(false);
-    ui_->remove_tree_root->setVisible(false);
-    // Remove spacer in list view
-    if (view_mode_spacer_) {
-      ui_->horizontalLayout->removeItem(view_mode_spacer_);
-      delete view_mode_spacer_;
-      view_mode_spacer_ = nullptr;
-    }
-  }
-
-}
-
-void FileView::AddTreeRootPath(const QString &path) {
-
-  if (!tree_root_paths_.contains(path)) {
-    tree_root_paths_.append(path);
-    SaveTreeRootPaths();
-
-    // Refresh the tree view to show the new root
-    if (tree_model_) {
-      SetupTreeView();
-    }
-  }
-
-}
-
-void FileView::RemoveTreeRootPath(const QString &path) {
-
-  tree_root_paths_.removeAll(path);
-  SaveTreeRootPaths();
-
-  // Refresh the tree view
-  if (tree_model_) {
-    SetupTreeView();
-  }
-
-}
-
-void FileView::SaveTreeRootPaths() {
-
-  Settings s;
-  s.beginGroup(u"FileView"_s);
-  s.setValue(u"tree_root_paths"_s, tree_root_paths_);
-  s.endGroup();
-
-}
-
-void FileView::AddRootButtonClicked() {
-
-  const QString dir = QFileDialog::getExistingDirectory(this, tr("Select folder to add as tree root"), tree_root_paths_.isEmpty() ? QDir::homePath() : tree_root_paths_.first(), QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
-  if (!dir.isEmpty()) {
-    AddTreeRootPath(dir);
-  }
-
-}
-
-void FileView::RemoveRootButtonClicked() {
-
-  // Get currently selected item in tree
-  QModelIndex current = ui_->tree->currentIndex();
-  if (!current.isValid()) return;
-
-  QString path;
-
-  // Get the file path from the appropriate model
-  if (tree_model_) {
-    path = tree_model_->data(current, FileViewTreeModel::Role_FilePath).toString();
-  }
-
-  if (path.isEmpty()) return;
-
-  const QString clean_path = QDir::cleanPath(path);
-
-  // Check if this path or any parent is a configured root
-  for (const QString &root : std::as_const(tree_root_paths_)) {
-    const QString clean_root = QDir::cleanPath(root);
-    if (clean_path == clean_root || clean_path.startsWith(clean_root + QDir::separator())) {
-      RemoveTreeRootPath(root);
-      return;
-    }
-  }
-
-}
-
 void FileView::keyPressEvent(QKeyEvent *e) {
 
   switch (e->key()) {

src/fileview/fileview.h

@@ -40,12 +40,10 @@ class QFileIconProvider;
 class QUndoStack;
 class QKeyEvent;
 class QShowEvent;
-class QSpacerItem;
 
 class MusicStorage;
 class TaskManager;
 class Ui_FileView;
-class FileViewTreeModel;
 
 class FileView : public QWidget {
   Q_OBJECT
@@ -78,22 +76,12 @@ class FileView : public QWidget {
   void ChangeFilePath(const QString &new_path);
   void ItemActivated(const QModelIndex &idx);
   void ItemDoubleClick(const QModelIndex &idx);
-  void ToggleViewMode();
 
   void Delete(const QStringList &filenames);
   void DeleteFinished(const SongList &songs_with_errors);
 
- public Q_SLOTS:
-  void AddTreeRootPath(const QString &path);
-  void RemoveTreeRootPath(const QString &path);
-
  private:
   void ChangeFilePathWithoutUndo(const QString &new_path);
-  void SetupTreeView();
-  void SaveTreeRootPaths();
-  void AddRootButtonClicked();
-  void RemoveRootButtonClicked();
-  void UpdateViewModeUI();
 
  private:
   class UndoCommand : public QUndoCommand {
@@ -122,21 +110,16 @@ class FileView : public QWidget {
   Ui_FileView *ui_;
 
   QFileSystemModel *model_;
-  FileViewTreeModel *tree_model_;
   QUndoStack *undo_stack_;
 
   SharedPtr<TaskManager> task_manager_;
   SharedPtr<MusicStorage> storage_;
 
   QString lazy_set_path_;
-  QStringList tree_root_paths_;
 
   QStringList filter_list_;
 
   ScopedPtr<QFileIconProvider> file_icon_provider_;
-
-  bool tree_view_active_;
-  QSpacerItem *view_mode_spacer_;
 };
 
 #endif  // FILEVIEW_H

src/fileview/fileview.ui

@@ -95,143 +95,28 @@
      <item>
       <widget class="QLineEdit" name="path"/>
      </item>
-     <item>
-      <widget class="QToolButton" name="add_tree_root">
-       <property name="toolTip">
-        <string>Add root directory</string>
-       </property>
-       <property name="iconSize">
-        <size>
-         <width>22</width>
-         <height>22</height>
-        </size>
-       </property>
-       <property name="autoRaise">
-        <bool>true</bool>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QToolButton" name="remove_tree_root">
-       <property name="toolTip">
-        <string>Remove selected root directory</string>
-       </property>
-       <property name="iconSize">
-        <size>
-         <width>22</width>
-         <height>22</height>
-        </size>
-       </property>
-       <property name="autoRaise">
-        <bool>true</bool>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QToolButton" name="toggle_view">
-       <property name="iconSize">
-        <size>
-         <width>22</width>
-         <height>22</height>
-        </size>
-       </property>
-       <property name="autoRaise">
-        <bool>true</bool>
-       </property>
-       <property name="toolTip">
-        <string>Toggle between list and tree view</string>
-       </property>
-      </widget>
-     </item>
     </layout>
    </item>
    <item>
-    <widget class="QStackedWidget" name="view_stack">
-     <property name="currentIndex">
-      <number>0</number>
+    <widget class="FileViewList" name="list">
+     <property name="dragEnabled">
+      <bool>true</bool>
+     </property>
+     <property name="dragDropMode">
+      <enum>QAbstractItemView::DragOnly</enum>
+     </property>
+     <property name="selectionMode">
+      <enum>QAbstractItemView::ExtendedSelection</enum>
+     </property>
+     <property name="selectionBehavior">
+      <enum>QAbstractItemView::SelectRows</enum>
+     </property>
+     <property name="iconSize">
+      <size>
+       <width>16</width>
+       <height>16</height>
+      </size>
      </property>
-     <widget class="QWidget" name="list_page">
-      <layout class="QVBoxLayout" name="list_layout">
-       <property name="spacing">
-        <number>0</number>
-       </property>
-       <property name="leftMargin">
-        <number>0</number>
-       </property>
-       <property name="topMargin">
-        <number>0</number>
-       </property>
-       <property name="rightMargin">
-        <number>0</number>
-       </property>
-       <property name="bottomMargin">
-        <number>0</number>
-       </property>
-       <item>
-        <widget class="FileViewList" name="list">
-         <property name="dragEnabled">
-          <bool>true</bool>
-         </property>
-         <property name="dragDropMode">
-          <enum>QAbstractItemView::DragOnly</enum>
-         </property>
-         <property name="selectionMode">
-          <enum>QAbstractItemView::ExtendedSelection</enum>
-         </property>
-         <property name="selectionBehavior">
-          <enum>QAbstractItemView::SelectRows</enum>
-         </property>
-         <property name="iconSize">
-          <size>
-           <width>16</width>
-           <height>16</height>
-          </size>
-         </property>
-        </widget>
-       </item>
-      </layout>
-     </widget>
-     <widget class="QWidget" name="tree_page">
-      <layout class="QVBoxLayout" name="tree_layout">
-       <property name="spacing">
-        <number>0</number>
-       </property>
-       <property name="leftMargin">
-        <number>0</number>
-       </property>
-       <property name="topMargin">
-        <number>0</number>
-       </property>
-       <property name="rightMargin">
-        <number>0</number>
-       </property>
-       <property name="bottomMargin">
-        <number>0</number>
-       </property>
-       <item>
-        <widget class="FileViewTree" name="tree">
-         <property name="dragEnabled">
-          <bool>true</bool>
-         </property>
-         <property name="dragDropMode">
-          <enum>QAbstractItemView::DragOnly</enum>
-         </property>
-         <property name="selectionMode">
-          <enum>QAbstractItemView::ExtendedSelection</enum>
-         </property>
-         <property name="selectionBehavior">
-          <enum>QAbstractItemView::SelectRows</enum>
-         </property>
-         <property name="iconSize">
-          <size>
-           <width>16</width>
-           <height>16</height>
-          </size>
-         </property>
-        </widget>
-       </item>
-      </layout>
-     </widget>
     </widget>
    </item>
   </layout>
@@ -242,11 +127,6 @@
    <extends>QListView</extends>
    <header>fileview/fileviewlist.h</header>
   </customwidget>
-  <customwidget>
-   <class>FileViewTree</class>
-   <extends>QTreeView</extends>
-   <header>fileview/fileviewtree.h</header>
-  </customwidget>
  </customwidgets>
  <resources/>
  <connections/>

src/fileview/fileviewlist.cpp

@@ -99,7 +99,7 @@ MimeData *FileViewList::MimeDataFromSelection() const {
 
   const QStringList filenames = FilenamesFromSelection();
 
-  // If just one folder selected - use its path as the new playlist's name
+  // if just one folder selected - use its path as the new playlist's name
   if (filenames.size() == 1 && QFileInfo(filenames.first()).isDir()) {
     if (filenames.first().length() > 20) {
       mimedata->name_for_new_playlist_ = QDir(filenames.first()).dirName();
@@ -108,7 +108,7 @@ MimeData *FileViewList::MimeDataFromSelection() const {
       mimedata->name_for_new_playlist_ = filenames.first();
     }
   }
-  // Otherwise, use the current root path
+  // otherwise, use the current root path
   else {
     QString path = qobject_cast<QFileSystemModel*>(model())->rootPath();
     if (path.length() > 20) {
@@ -196,11 +196,11 @@ void FileViewList::mousePressEvent(QMouseEvent *e) {
     case Qt::XButton2:
       Q_EMIT Forward();
       break;
-    // Enqueue to playlist with middleClick
+    // enqueue to playlist with middleClick
     case Qt::MiddleButton:{
       QListView::mousePressEvent(e);
 
-      // We need to update the menu selection
+      // we need to update the menu selection
       menu_selection_ = selectionModel()->selection();
 
       MimeData *mimedata = new MimeData;

src/fileview/fileviewtree.cpp

@@ -1,205 +0,0 @@
-/*
- * Strawberry Music Player
- * Copyright 2025, Jonas Kvinge <jonas@jkvinge.net>
- *
- * Strawberry is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Strawberry is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <algorithm>
-#include <utility>
-
-#include <QWidget>
-#include <QAbstractItemModel>
-#include <QFileInfo>
-#include <QDir>
-#include <QMenu>
-#include <QUrl>
-#include <QCollator>
-#include <QtEvents>
-
-#include "core/iconloader.h"
-#include "core/mimedata.h"
-#include "utilities/filemanagerutils.h"
-#include "fileviewtree.h"
-#include "fileviewtreemodel.h"
-
-using namespace Qt::Literals::StringLiterals;
-
-FileViewTree::FileViewTree(QWidget *parent)
-    : QTreeView(parent),
-      menu_(new QMenu(this)) {
-
-  menu_->addAction(IconLoader::Load(u"media-playback-start"_s), tr("Append to current playlist"), this, &FileViewTree::AddToPlaylistSlot);
-  menu_->addAction(IconLoader::Load(u"media-playback-start"_s), tr("Replace current playlist"), this, &FileViewTree::LoadSlot);
-  menu_->addAction(IconLoader::Load(u"document-new"_s), tr("Open in new playlist"), this, &FileViewTree::OpenInNewPlaylistSlot);
-  menu_->addSeparator();
-  menu_->addAction(IconLoader::Load(u"edit-copy"_s), tr("Copy to collection..."), this, &FileViewTree::CopyToCollectionSlot);
-  menu_->addAction(IconLoader::Load(u"go-jump"_s), tr("Move to collection..."), this, &FileViewTree::MoveToCollectionSlot);
-  menu_->addAction(IconLoader::Load(u"device"_s), tr("Copy to device..."), this, &FileViewTree::CopyToDeviceSlot);
-  menu_->addAction(IconLoader::Load(u"edit-delete"_s), tr("Delete from disk..."), this, &FileViewTree::DeleteSlot);
-
-  menu_->addSeparator();
-  menu_->addAction(IconLoader::Load(u"edit-rename"_s), tr("Edit track information..."), this, &FileViewTree::EditTagsSlot);
-  menu_->addAction(IconLoader::Load(u"document-open-folder"_s), tr("Show in file browser..."), this, &FileViewTree::ShowInBrowser);
-
-  setAttribute(Qt::WA_MacShowFocusRect, false);
-  setHeaderHidden(true);
-  setUniformRowHeights(true);
-
-}
-
-void FileViewTree::contextMenuEvent(QContextMenuEvent *e) {
-
-  menu_selection_ = selectionModel()->selection();
-
-  menu_->popup(e->globalPos());
-  e->accept();
-
-}
-
-QStringList FileViewTree::FilenamesFromSelection() const {
-
-  QStringList filenames;
-  const QModelIndexList indexes = menu_selection_.indexes();
-
-  FileViewTreeModel *tree_model = qobject_cast<FileViewTreeModel*>(model());
-  if (tree_model) {
-    for (const QModelIndex &index : indexes) {
-      if (index.column() == 0) {
-        QString path = tree_model->data(index, FileViewTreeModel::Role_FilePath).toString();
-        if (!path.isEmpty()) {
-          filenames << path;
-        }
-      }
-    }
-  }
-
-  QCollator collator;
-  collator.setNumericMode(true);
-  std::sort(filenames.begin(), filenames.end(), collator);
-
-  return filenames;
-
-}
-
-QList<QUrl> FileViewTree::UrlListFromSelection() const {
-
-  QList<QUrl> urls;
-  const QStringList filenames = FilenamesFromSelection();
-  urls.reserve(filenames.count());
-  for (const QString &filename : std::as_const(filenames)) {
-    urls << QUrl::fromLocalFile(filename);
-  }
-
-  return urls;
-
-}
-
-MimeData *FileViewTree::MimeDataFromSelection() const {
-
-  MimeData *mimedata = new MimeData;
-  mimedata->setUrls(UrlListFromSelection());
-
-  const QStringList filenames = FilenamesFromSelection();
-
-  // if just one folder selected - use its path as the new playlist's name
-  if (filenames.size() == 1 && QFileInfo(filenames.first()).isDir()) {
-    if (filenames.first().length() > 20) {
-      mimedata->name_for_new_playlist_ = QDir(filenames.first()).dirName();
-    }
-    else {
-      mimedata->name_for_new_playlist_ = filenames.first();
-    }
-  }
-  // otherwise, use "Files" as default
-  else {
-    mimedata->name_for_new_playlist_ = tr("Files");
-  }
-
-  return mimedata;
-
-}
-
-void FileViewTree::LoadSlot() {
-
-  MimeData *mimedata = MimeDataFromSelection();
-  mimedata->clear_first_ = true;
-  Q_EMIT AddToPlaylist(mimedata);
-
-}
-
-void FileViewTree::AddToPlaylistSlot() {
-  Q_EMIT AddToPlaylist(MimeDataFromSelection());
-}
-
-void FileViewTree::OpenInNewPlaylistSlot() {
-
-  MimeData *mimedata = MimeDataFromSelection();
-  mimedata->open_in_new_playlist_ = true;
-  Q_EMIT AddToPlaylist(mimedata);
-
-}
-
-void FileViewTree::CopyToCollectionSlot() {
-  Q_EMIT CopyToCollection(UrlListFromSelection());
-}
-
-void FileViewTree::MoveToCollectionSlot() {
-  Q_EMIT MoveToCollection(UrlListFromSelection());
-}
-
-void FileViewTree::CopyToDeviceSlot() {
-  Q_EMIT CopyToDevice(UrlListFromSelection());
-}
-
-void FileViewTree::DeleteSlot() {
-  Q_EMIT Delete(FilenamesFromSelection());
-}
-
-void FileViewTree::EditTagsSlot() {
-  Q_EMIT EditTags(UrlListFromSelection());
-}
-
-void FileViewTree::mousePressEvent(QMouseEvent *e) {
-
-  switch (e->button()) {
-    // Enqueue to playlist with middleClick
-    case Qt::MiddleButton:{
-      QTreeView::mousePressEvent(e);
-
-      // We need to update the menu selection
-      QItemSelectionModel *selection_model = selectionModel();
-      if (!selection_model) {
-        e->ignore();
-        return;
-      }
-      menu_selection_ = selection_model->selection();
-
-      MimeData *mimedata = new MimeData;
-      mimedata->setUrls(UrlListFromSelection());
-      mimedata->enqueue_now_ = true;
-      Q_EMIT AddToPlaylist(mimedata);
-      break;
-    }
-    default:
-      QTreeView::mousePressEvent(e);
-      break;
-  }
-
-}
-
-void FileViewTree::ShowInBrowser() {
-  Utilities::OpenInFileBrowser(UrlListFromSelection());
-}

src/fileview/fileviewtree.h

@@ -1,78 +0,0 @@
-/*
- * Strawberry Music Player
- * Copyright 2025, Jonas Kvinge <jonas@jkvinge.net>
- *
- * Strawberry is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Strawberry is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifndef FILEVIEWTREE_H
-#define FILEVIEWTREE_H
-
-#include <QObject>
-#include <QTreeView>
-#include <QList>
-#include <QUrl>
-#include <QString>
-#include <QStringList>
-
-class QWidget;
-class QMimeData;
-class QMenu;
-class QMouseEvent;
-class QContextMenuEvent;
-
-class MimeData;
-
-class FileViewTree : public QTreeView {
-  Q_OBJECT
-
- public:
-  explicit FileViewTree(QWidget *parent = nullptr);
-
-  void mousePressEvent(QMouseEvent *e) override;
-
- Q_SIGNALS:
-  void AddToPlaylist(QMimeData *data);
-  void CopyToCollection(const QList<QUrl> &urls);
-  void MoveToCollection(const QList<QUrl> &urls);
-  void CopyToDevice(const QList<QUrl> &urls);
-  void Delete(const QStringList &filenames);
-  void EditTags(const QList<QUrl> &urls);
-
- protected:
-  void contextMenuEvent(QContextMenuEvent *e) override;
-
- private:
-  QStringList FilenamesFromSelection() const;
-  QList<QUrl> UrlListFromSelection() const;
-  MimeData *MimeDataFromSelection() const;
-
- private Q_SLOTS:
-  void LoadSlot();
-  void AddToPlaylistSlot();
-  void OpenInNewPlaylistSlot();
-  void CopyToCollectionSlot();
-  void MoveToCollectionSlot();
-  void CopyToDeviceSlot();
-  void DeleteSlot();
-  void EditTagsSlot();
-  void ShowInBrowser();
-
- private:
-  QMenu *menu_;
-  QItemSelection menu_selection_;
-};
-
-#endif  // FILEVIEWTREE_H

src/fileview/fileviewtreeitem.h

@@ -1,52 +0,0 @@
-/*
- * Strawberry Music Player
- * Copyright 2025, Jonas Kvinge <jonas@jkvinge.net>
- *
- * Strawberry is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Strawberry is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifndef FILEVIEWTREEITEM_H
-#define FILEVIEWTREEITEM_H
-
-#include "config.h"
-
-#include <QFileInfo>
-
-#include "core/simpletreeitem.h"
-
-class FileViewTreeItem : public SimpleTreeItem<FileViewTreeItem> {
- public:
-  enum class Type {
-    Root,          // Hidden root
-    VirtualRoot,   // User-configured root paths
-    Directory,     // File system directory
-    File           // File system file
-  };
-
-  explicit FileViewTreeItem(SimpleTreeModel<FileViewTreeItem> *_model) : SimpleTreeItem<FileViewTreeItem>(_model), type(Type::Root), lazy_loaded(false) {}
-  explicit FileViewTreeItem(const Type _type, FileViewTreeItem *_parent = nullptr) : SimpleTreeItem<FileViewTreeItem>(_parent), type(_type), lazy_loaded(false) {}
-
-  Type type;
-  QString file_path;        // Absolute file system path
-  QFileInfo file_info;      // Cached file info
-  bool lazy_loaded;         // Whether children have been loaded
-
- private:
-  Q_DISABLE_COPY(FileViewTreeItem)
-};
-
-Q_DECLARE_METATYPE(FileViewTreeItem::Type)
-
-#endif  // FILEVIEWTREEITEM_H

src/fileview/fileviewtreemodel.cpp

@@ -1,246 +0,0 @@
-/*
- * Strawberry Music Player
- * Copyright 2025, Jonas Kvinge <jonas@jkvinge.net>
- *
- * Strawberry is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Strawberry is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <QObject>
-#include <QVariant>
-#include <QString>
-#include <QStringList>
-#include <QList>
-#include <QMap>
-#include <QDir>
-#include <QFileInfo>
-#include <QFileIconProvider>
-#include <QMimeData>
-#include <QUrl>
-#include <QIcon>
-
-#include "core/simpletreemodel.h"
-#include "core/logging.h"
-#include "fileviewtreemodel.h"
-#include "fileviewtreeitem.h"
-
-using namespace Qt::Literals::StringLiterals;
-
-FileViewTreeModel::FileViewTreeModel(QObject *parent)
-    : SimpleTreeModel<FileViewTreeItem>(new FileViewTreeItem(this), parent),
-      icon_provider_(new QFileIconProvider()) {
-}
-
-FileViewTreeModel::~FileViewTreeModel() {
-  delete root_;
-  delete icon_provider_;
-}
-
-Qt::ItemFlags FileViewTreeModel::flags(const QModelIndex &idx) const {
-
-  const FileViewTreeItem *item = IndexToItem(idx);
-  if (!item) return Qt::NoItemFlags;
-
-  switch (item->type) {
-    case FileViewTreeItem::Type::VirtualRoot:
-    case FileViewTreeItem::Type::Directory:
-    case FileViewTreeItem::Type::File:
-      return Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsDragEnabled;
-    case FileViewTreeItem::Type::Root:
-    default:
-      return Qt::ItemIsEnabled;
-  }
-
-}
-
-QVariant FileViewTreeModel::data(const QModelIndex &idx, const int role) const {
-
-  if (!idx.isValid()) return QVariant();
-
-  const FileViewTreeItem *item = IndexToItem(idx);
-  if (!item) return QVariant();
-
-  switch (role) {
-    case Qt::DisplayRole:
-      if (item->type == FileViewTreeItem::Type::VirtualRoot) {
-        return item->display_text.isEmpty() ? item->file_path : item->display_text;
-      }
-      return item->file_info.fileName();
-
-    case Qt::DecorationRole:
-      return GetIcon(item);
-
-    case Role_Type:
-      return QVariant::fromValue(item->type);
-
-    case Role_FilePath:
-      return item->file_path;
-
-    case Role_FileName:
-      return item->file_info.fileName();
-
-    default:
-      return QVariant();
-  }
-
-}
-
-bool FileViewTreeModel::hasChildren(const QModelIndex &parent) const {
-
-  const FileViewTreeItem *item = IndexToItem(parent);
-  if (!item) return false;
-
-  // Root and VirtualRoot always have children (or can have them)
-  if (item->type == FileViewTreeItem::Type::Root) return true;
-  if (item->type == FileViewTreeItem::Type::VirtualRoot) return true;
-
-  // Directories can have children
-  if (item->type == FileViewTreeItem::Type::Directory) {
-    return true;
-  }
-
-  // Files don't have children
-  return false;
-
-}
-
-bool FileViewTreeModel::canFetchMore(const QModelIndex &parent) const {
-
-  const FileViewTreeItem *item = IndexToItem(parent);
-  if (!item) return false;
-
-  // Can fetch more if not yet lazy loaded
-  return !item->lazy_loaded && (item->type == FileViewTreeItem::Type::VirtualRoot || item->type == FileViewTreeItem::Type::Directory);
-
-}
-
-void FileViewTreeModel::fetchMore(const QModelIndex &parent) {
-
-  FileViewTreeItem *item = IndexToItem(parent);
-  if (!item || item->lazy_loaded) return;
-
-  LazyLoad(item);
-
-}
-
-void FileViewTreeModel::LazyLoad(FileViewTreeItem *item) {
-
-  if (item->lazy_loaded) return;
-
-  QDir dir(item->file_path);
-  if (!dir.exists()) {
-    item->lazy_loaded = true;
-    return;
-  }
-
-  // Apply name filters
-  const QDir::Filters filters = QDir::AllDirs | QDir::Files | QDir::NoDotAndDotDot;
-  if (!name_filters_.isEmpty()) {
-    dir.setNameFilters(name_filters_);
-  }
-
-  const QFileInfoList entries = dir.entryInfoList(filters, QDir::Name | QDir::DirsFirst);
-  if (!entries.isEmpty()) {
-    BeginInsert(item, 0, static_cast<int>(entries.count()) - 1);
-
-    for (const QFileInfo &entry : entries) {
-      FileViewTreeItem *child = new FileViewTreeItem(
-        entry.isDir() ? FileViewTreeItem::Type::Directory : FileViewTreeItem::Type::File,
-        item
-      );
-      child->file_path = entry.absoluteFilePath();
-      child->file_info = entry;
-      child->lazy_loaded = false;
-      child->display_text = entry.fileName();
-    }
-
-    EndInsert();
-  }
-
-  item->lazy_loaded = true;
-
-}
-
-QIcon FileViewTreeModel::GetIcon(const FileViewTreeItem *item) const {
-
-  if (!item) return QIcon();
-
-  switch (item->type) {
-    case FileViewTreeItem::Type::VirtualRoot:
-    case FileViewTreeItem::Type::Directory:
-      return icon_provider_->icon(QFileIconProvider::Folder);
-    case FileViewTreeItem::Type::File:
-      return icon_provider_->icon(item->file_info);
-    default:
-      return QIcon();
-  }
-
-}
-
-QStringList FileViewTreeModel::mimeTypes() const {
-  return QStringList() << u"text/uri-list"_s;
-}
-
-QMimeData *FileViewTreeModel::mimeData(const QModelIndexList &indexes) const {
-
-  if (indexes.isEmpty()) return nullptr;
-
-  QList<QUrl> urls;
-  for (const QModelIndex &idx : indexes) {
-    const FileViewTreeItem *item = IndexToItem(idx);
-    if (item && (item->type == FileViewTreeItem::Type::File || item->type == FileViewTreeItem::Type::Directory || item->type == FileViewTreeItem::Type::VirtualRoot)) {
-      urls << QUrl::fromLocalFile(item->file_path);
-    }
-  }
-
-  if (urls.isEmpty()) return nullptr;
-
-  QMimeData *data = new QMimeData();
-  data->setUrls(urls);
-  return data;
-
-}
-
-void FileViewTreeModel::SetRootPaths(const QStringList &paths) {
-
-  Reset();
-
-  for (const QString &path : paths) {
-    QFileInfo info(path);
-    if (!info.exists() || !info.isDir()) continue;
-
-    FileViewTreeItem *virtual_root = new FileViewTreeItem(FileViewTreeItem::Type::VirtualRoot, root_);
-    virtual_root->file_path = info.absoluteFilePath();
-    virtual_root->file_info = info;
-    virtual_root->display_text = info.absoluteFilePath();
-    virtual_root->lazy_loaded = false;
-  }
-
-}
-
-void FileViewTreeModel::SetNameFilters(const QStringList &filters) {
-  name_filters_ = filters;
-}
-
-void FileViewTreeModel::Reset() {
-
-  beginResetModel();
-
-  // Clear children without notifications since we're in a reset
-  qDeleteAll(root_->children);
-  root_->children.clear();
-
-  endResetModel();
-
-}

src/fileview/fileviewtreemodel.h

@@ -1,72 +0,0 @@
-/*
- * Strawberry Music Player
- * Copyright 2025, Jonas Kvinge <jonas@jkvinge.net>
- *
- * Strawberry is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Strawberry is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifndef FILEVIEWTREEMODEL_H
-#define FILEVIEWTREEMODEL_H
-
-#include "config.h"
-
-#include <QObject>
-#include <QVariant>
-#include <QStringList>
-#include <QIcon>
-
-#include "core/simpletreemodel.h"
-#include "fileviewtreeitem.h"
-
-class QFileIconProvider;
-class QMimeData;
-
-class FileViewTreeModel : public SimpleTreeModel<FileViewTreeItem> {
-  Q_OBJECT
-
- public:
-  explicit FileViewTreeModel(QObject *parent = nullptr);
-  ~FileViewTreeModel() override;
-
-  enum Role {
-    Role_Type = Qt::UserRole + 1,
-    Role_FilePath,
-    Role_FileName,
-    RoleCount
-  };
-
-  // QAbstractItemModel
-  Qt::ItemFlags flags(const QModelIndex &idx) const override;
-  QVariant data(const QModelIndex &idx, const int role) const override;
-  bool hasChildren(const QModelIndex &parent) const override;
-  bool canFetchMore(const QModelIndex &parent) const override;
-  void fetchMore(const QModelIndex &parent) override;
-  QStringList mimeTypes() const override;
-  QMimeData *mimeData(const QModelIndexList &indexes) const override;
-
-  void SetRootPaths(const QStringList &paths);
-  void SetNameFilters(const QStringList &filters);
-
- private:
-  void Reset();
-  void LazyLoad(FileViewTreeItem *item);
-  QIcon GetIcon(const FileViewTreeItem *item) const;
-
- private:
-  QFileIconProvider *icon_provider_;
-  QStringList name_filters_;
-};
-
-#endif  // FILEVIEWTREEMODEL_H

src/networkremote/incomingdataparser.cpp

@@ -0,0 +1,478 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2012, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <algorithm>
+
+#include <QString>
+#include <QUrl>
+#include <QDir>
+#include <QSettings>
+
+#include "core/logging.h"
+#include "core/mimedata.h"
+#include "constants/timeconstants.h"
+#include "engine/enginebase.h"
+#include "playlist/playlist.h"
+#include "playlist/playlistmanager.h"
+#include "playlist/playlistsequence.h"
+#include "incomingdataparser.h"
+#include "scrobbler/audioscrobbler.h"
+#include "constants/mainwindowsettings.h"
+
+using namespace Qt::Literals::StringLiterals;
+
+IncomingDataParser::IncomingDataParser(const SharedPtr<Player> player,
+                                       const SharedPtr<PlaylistManager> playlist_manager,
+                                       const SharedPtr<AudioScrobbler> scrobbler,
+                                       QObject *parent)
+    : QObject(parent),
+      player_(player),
+      playlist_manager_(playlist_manager),
+      scrobbler_(scrobbler),
+      close_connection_(false),
+      doubleclick_playlist_addmode_(BehaviourSettings::PlaylistAddBehaviour::Enqueue) {
+
+  ReloadSettings();
+
+  QObject::connect(this, &IncomingDataParser::Play, &*player_, &Player::PlayHelper);
+  QObject::connect(this, &IncomingDataParser::PlayPause, &*player_, &Player::PlayPauseHelper);
+  QObject::connect(this, &IncomingDataParser::Pause, &*player_, &Player::Pause);
+  QObject::connect(this, &IncomingDataParser::Stop, &*player_, &Player::Stop);
+  QObject::connect(this, &IncomingDataParser::StopAfterCurrent, &*player_, &Player::StopAfterCurrent);
+  QObject::connect(this, &IncomingDataParser::Next, &*player_, &Player::Next);
+  QObject::connect(this, &IncomingDataParser::Previous, &*player_, &Player::Previous);
+  QObject::connect(this, &IncomingDataParser::SetVolume, &*player_, &Player::SetVolume);
+  QObject::connect(this, &IncomingDataParser::PlayAt, &*player_, &Player::PlayAt);
+  QObject::connect(this, &IncomingDataParser::SeekTo, &*player_, &Player::SeekTo);
+
+  QObject::connect(this, &IncomingDataParser::Enqueue, &*playlist_manager_, &PlaylistManager::Enqueue);
+  QObject::connect(this, &IncomingDataParser::SetActivePlaylist, &*playlist_manager_, &PlaylistManager::SetActivePlaylist);
+  QObject::connect(this, &IncomingDataParser::ShuffleCurrent, &*playlist_manager_, &PlaylistManager::ShuffleCurrent);
+  QObject::connect(this, &IncomingDataParser::InsertUrls, &*playlist_manager_, &PlaylistManager::InsertUrls);
+  QObject::connect(this, &IncomingDataParser::InsertSongs, &*playlist_manager_, &PlaylistManager::InsertSongs);
+  QObject::connect(this, &IncomingDataParser::RemoveSongs, &*playlist_manager_, &PlaylistManager::RemoveItemsWithoutUndo);
+  QObject::connect(this, &IncomingDataParser::New, &*playlist_manager_, &PlaylistManager::New);
+  QObject::connect(this, &IncomingDataParser::Open, &*playlist_manager_, &PlaylistManager::Open);
+  QObject::connect(this, &IncomingDataParser::Close, &*playlist_manager_, &PlaylistManager::Close);
+  QObject::connect(this, &IncomingDataParser::Clear, &*playlist_manager_, &PlaylistManager::Clear);
+  QObject::connect(this, &IncomingDataParser::Rename, &*playlist_manager_, &PlaylistManager::Rename);
+  QObject::connect(this, &IncomingDataParser::Favorite, &*playlist_manager_, &PlaylistManager::Favorite);
+
+  QObject::connect(this, &IncomingDataParser::SetRepeatMode, &*playlist_manager_->sequence(), &PlaylistSequence::SetRepeatMode);
+  QObject::connect(this, &IncomingDataParser::SetShuffleMode, &*playlist_manager_->sequence(), &PlaylistSequence::SetShuffleMode);
+
+  QObject::connect(this, &IncomingDataParser::RateCurrentSong, &*playlist_manager_, &PlaylistManager::RateCurrentSong);
+
+  QObject::connect(this, &IncomingDataParser::Love, &*scrobbler_, &AudioScrobbler::Love);
+
+}
+
+IncomingDataParser::~IncomingDataParser() = default;
+
+void IncomingDataParser::ReloadSettings() {
+
+  QSettings s;
+  s.beginGroup(MainWindowSettings::kSettingsGroup);
+  doubleclick_playlist_addmode_ = static_cast<BehaviourSettings::PlaylistAddBehaviour>(s.value(BehaviourSettings::kDoubleClickPlaylistAddMode, static_cast<int>(BehaviourSettings::PlaylistAddBehaviour::Enqueue)).toInt());
+  s.endGroup();
+
+}
+
+bool IncomingDataParser::close_connection() const { return close_connection_; }
+
+void IncomingDataParser::SetRemoteRootFiles(const QString &files_root_folder) {
+  files_root_folder_ = files_root_folder;
+}
+
+Song IncomingDataParser::SongFromPbSongMetadata(const networkremote::SongMetadata &pb_song_metadata) const {
+
+  Song song;
+  song.Init(pb_song_metadata.title(), pb_song_metadata.artist(), pb_song_metadata.album(), pb_song_metadata.length() * kNsecPerSec);
+  song.set_albumartist(pb_song_metadata.albumartist());
+  song.set_genre(pb_song_metadata.genre());
+  song.set_year(pb_song_metadata.prettyYear().toInt());
+  song.set_track(pb_song_metadata.track());
+  song.set_disc(pb_song_metadata.disc());
+  song.set_url(QUrl(pb_song_metadata.url()));
+  song.set_filesize(pb_song_metadata.fileSize());
+  song.set_rating(pb_song_metadata.rating());
+  song.set_basefilename(pb_song_metadata.filename());
+  song.set_art_automatic(QUrl(pb_song_metadata.artAutomatic()));
+  song.set_art_manual(QUrl(pb_song_metadata.artManual()));
+  song.set_filetype(static_cast<Song::FileType>(pb_song_metadata.filetype()));
+
+  return song;
+
+}
+
+void IncomingDataParser::Parse(const networkremote::Message &msg) {
+
+  close_connection_ = false;
+  NetworkRemoteClient *client = qobject_cast<NetworkRemoteClient*>(sender());
+
+  switch (msg.type()) {
+    case networkremote::MsgTypeGadget::MsgType::CONNECT:
+      ClientConnect(msg, client);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::DISCONNECT:
+      close_connection_ = true;
+      break;
+    case networkremote::MsgTypeGadget::MsgType::GET_COLLECTION:
+      Q_EMIT SendCollection(client);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::GET_PLAYLISTS:
+      ParseSendPlaylists(msg);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::GET_PLAYLIST_SONGS:
+      ParseGetPlaylistSongs(msg);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::SET_VOLUME:
+      Q_EMIT SetVolume(msg.requestSetVolume().volume());
+      break;
+    case networkremote::MsgTypeGadget::MsgType::PLAY:
+      Q_EMIT Play();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::PLAYPAUSE:
+      Q_EMIT PlayPause();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::PAUSE:
+      Q_EMIT Pause();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::STOP:
+      Q_EMIT Stop();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::STOP_AFTER:
+      Q_EMIT StopAfterCurrent();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::NEXT:
+      Q_EMIT Next();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::PREVIOUS:
+      Q_EMIT Previous();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::CHANGE_SONG:
+      ParseChangeSong(msg);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::SHUFFLE_PLAYLIST:
+      Q_EMIT ShuffleCurrent();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::REPEAT:
+      ParseSetRepeatMode(msg.repeat());
+      break;
+    case networkremote::MsgTypeGadget::MsgType::SHUFFLE:
+      ParseSetShuffleMode(msg.shuffle());
+      break;
+    case networkremote::MsgTypeGadget::MsgType::SET_TRACK_POSITION:
+      Q_EMIT SeekTo(msg.requestSetTrackPosition().position());
+      break;
+    case networkremote::MsgTypeGadget::MsgType::PLAYLIST_INSERT_URLS:
+      ParseInsertUrls(msg);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::REMOVE_PLAYLIST_SONGS:
+      ParseRemoveSongs(msg);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::OPEN_PLAYLIST:
+      ParseOpenPlaylist(msg);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::CLOSE_PLAYLIST:
+      ParseClosePlaylist(msg);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::UPDATE_PLAYLIST:
+      ParseUpdatePlaylist(msg);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::LOVE:
+      Q_EMIT Love();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::GET_LYRICS:
+      Q_EMIT GetLyrics();
+      break;
+    case networkremote::MsgTypeGadget::MsgType::DOWNLOAD_SONGS:
+      client->song_sender()->SendSongs(msg.requestDownloadSongs());
+      break;
+    case networkremote::MsgTypeGadget::MsgType::SONG_OFFER_RESPONSE:
+      client->song_sender()->ResponseSongOffer(msg.responseSongOffer().accepted());
+      break;
+    case networkremote::MsgTypeGadget::MsgType::RATE_SONG:
+      ParseRateSong(msg);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::REQUEST_FILES:
+      Q_EMIT SendListFiles(msg.requestListFiles().relativePath(), client);
+      break;
+    case networkremote::MsgTypeGadget::MsgType::APPEND_FILES:
+      ParseAppendFilesToPlaylist(msg);
+      break;
+
+    default:
+      break;
+  }
+
+}
+
+void IncomingDataParser::ClientConnect(const networkremote::Message &msg, NetworkRemoteClient *client) {
+
+  Q_EMIT SendInfo();
+
+  if (!client->isDownloader()) {
+    if (!msg.requestConnect().hasSendPlaylistSongs() || msg.requestConnect().sendPlaylistSongs()) {
+      Q_EMIT SendFirstData(true);
+    }
+    else {
+      Q_EMIT SendFirstData(false);
+    }
+  }
+
+}
+
+void IncomingDataParser::ParseGetPlaylistSongs(const networkremote::Message &msg) {
+  Q_EMIT SendPlaylistSongs(msg.requestPlaylistSongs().playlistId());
+}
+
+void IncomingDataParser::ParseChangeSong(const networkremote::Message &msg) {
+
+  // Get the first entry and check if there is a song
+  const networkremote::RequestChangeSong &request = msg.requestChangeSong();
+
+  // Check if we need to change the playlist
+  if (request.playlistId() != playlist_manager_->active_id()) {
+    Q_EMIT SetActivePlaylist(request.playlistId());
+  }
+
+  switch (doubleclick_playlist_addmode_) {
+    case BehaviourSettings::PlaylistAddBehaviour::Play:{
+      Q_EMIT PlayAt(request.songIndex(), false, 0, EngineBase::TrackChangeType::Manual, Playlist::AutoScroll::Maybe, false, false);
+      break;
+    }
+    case BehaviourSettings::PlaylistAddBehaviour::Enqueue:{
+      Q_EMIT Enqueue(request.playlistId(), request.songIndex());
+      if (player_->GetState() != EngineBase::State::Playing) {
+        Q_EMIT PlayAt(request.songIndex(), false, 0, EngineBase::TrackChangeType::Manual, Playlist::AutoScroll::Maybe, false, false);
+      }
+      break;
+    }
+  }
+
+}
+
+void IncomingDataParser::ParseSetRepeatMode(const networkremote::Repeat &repeat) {
+
+  switch (repeat.repeatMode()) {
+    case networkremote::RepeatModeGadget::RepeatMode::RepeatMode_Off:
+      Q_EMIT SetRepeatMode(PlaylistSequence::RepeatMode::Off);
+      break;
+    case networkremote::RepeatModeGadget::RepeatMode::RepeatMode_Track:
+      Q_EMIT SetRepeatMode(PlaylistSequence::RepeatMode::Track);
+      break;
+    case networkremote::RepeatModeGadget::RepeatMode::RepeatMode_Album:
+      Q_EMIT SetRepeatMode(PlaylistSequence::RepeatMode::Album);
+      break;
+    case networkremote::RepeatModeGadget::RepeatMode::RepeatMode_Playlist:
+      Q_EMIT SetRepeatMode(PlaylistSequence::RepeatMode::Playlist);
+      break;
+    default:
+      break;
+  }
+
+}
+
+void IncomingDataParser::ParseSetShuffleMode(const networkremote::Shuffle &shuffle) {
+
+  switch (shuffle.shuffleMode()) {
+    case networkremote::ShuffleModeGadget::ShuffleMode::ShuffleMode_Off:
+      Q_EMIT SetShuffleMode(PlaylistSequence::ShuffleMode::Off);
+      break;
+    case networkremote::ShuffleModeGadget::ShuffleMode::ShuffleMode_All:
+      Q_EMIT SetShuffleMode(PlaylistSequence::ShuffleMode::All);
+      break;
+    case networkremote::ShuffleModeGadget::ShuffleMode::ShuffleMode_InsideAlbum:
+      Q_EMIT SetShuffleMode(PlaylistSequence::ShuffleMode::InsideAlbum);
+      break;
+    case networkremote::ShuffleModeGadget::ShuffleMode::ShuffleMode_Albums:
+      Q_EMIT SetShuffleMode(PlaylistSequence::ShuffleMode::Albums);
+      break;
+    default:
+      break;
+  }
+
+}
+
+void IncomingDataParser::ParseInsertUrls(const networkremote::Message &msg) {
+
+  const networkremote::RequestInsertUrls &request = msg.requestInsertUrls();
+  int playlist_id = request.playlistId();
+
+  // Insert plain urls without metadata
+  if (!request.urls().empty()) {
+    QList<QUrl> urls;
+    for (auto it = request.urls().begin(); it != request.urls().end(); ++it) {
+      const QString s = *it;
+      urls << QUrl(s);
+    }
+
+    if (request.hasNewPlaylistName()) {
+      playlist_id = playlist_manager_->New(request.newPlaylistName());
+    }
+
+    // Insert the urls
+    Q_EMIT InsertUrls(playlist_id, urls, request.position(), request.playNow(), request.enqueue());
+  }
+
+  // Add songs with metadata if present
+  if (!request.songs().empty()) {
+    SongList songs;
+    for (int i = 0; i < request.songs().size(); i++) {
+      songs << SongFromPbSongMetadata(request.songs().at(i));
+    }
+
+    // Create a new playlist if required and not already done above by InsertUrls
+    if (request.hasNewPlaylistName() && playlist_id == request.playlistId()) {
+      playlist_id = playlist_manager_->New(request.newPlaylistName());
+    }
+
+    Q_EMIT InsertSongs(request.playlistId(), songs, request.position(), request.playNow(), request.enqueue());
+  }
+
+}
+
+void IncomingDataParser::ParseRemoveSongs(const networkremote::Message &msg) {
+
+  const networkremote::RequestRemoveSongs &request = msg.requestRemoveSongs();
+
+  QList<int> songs;
+  songs.reserve(request.songs().size());
+  for (int i = 0; i < request.songs().size(); i++) {
+    songs.append(request.songs().at(i));
+  }
+
+  Q_EMIT RemoveSongs(request.playlistId(), songs);
+
+}
+
+void IncomingDataParser::ParseSendPlaylists(const networkremote::Message &msg) {
+
+  if (!msg.hasRequestPlaylistSongs() || !msg.requestPlaylists().includeClosed()) {
+    Q_EMIT SendAllActivePlaylists();
+  }
+  else {
+    Q_EMIT SendAllPlaylists();
+  }
+
+}
+
+void IncomingDataParser::ParseOpenPlaylist(const networkremote::Message &msg) {
+  Q_EMIT Open(msg.requestOpenPlaylist().playlistId());
+}
+
+void IncomingDataParser::ParseClosePlaylist(const networkremote::Message &msg) {
+  Q_EMIT Close(msg.requestClosePlaylist().playlistId());
+}
+
+void IncomingDataParser::ParseUpdatePlaylist(const networkremote::Message &msg) {
+
+  const networkremote::RequestUpdatePlaylist &req_update = msg.requestUpdatePlaylist();
+  if (req_update.hasCreateNewPlaylist() && req_update.createNewPlaylist()) {
+    Q_EMIT New(req_update.hasNewPlaylistName() ? req_update.newPlaylistName() : u"New Playlist"_s);
+    return;
+  }
+  if (req_update.hasClearPlaylist() && req_update.clearPlaylist()) {
+    Q_EMIT Clear(req_update.playlistId());
+    return;
+  }
+  if (req_update.hasNewPlaylistName() && !req_update.newPlaylistName().isEmpty()) {
+    Q_EMIT Rename(req_update.playlistId(), req_update.newPlaylistName());
+  }
+  if (req_update.hasFavorite()) {
+    Q_EMIT Favorite(req_update.playlistId(), req_update.favorite());
+  }
+
+}
+
+void IncomingDataParser::ParseRateSong(const networkremote::Message &msg) {
+
+  Q_EMIT RateCurrentSong(msg.requestRateSong().rating());
+
+}
+
+void IncomingDataParser::ParseAppendFilesToPlaylist(const networkremote::Message &msg) {
+
+  if (files_root_folder_.isEmpty()) {
+    qLog(Warning) << "Remote root dir is not set although receiving APPEND_FILES request...";
+    return;
+  }
+  QDir root_dir(files_root_folder_);
+  if (!root_dir.exists()) {
+    qLog(Warning) << "Remote root dir doesn't exist...";
+    return;
+  }
+
+  const networkremote::RequestAppendFiles &req_append = msg.requestAppendFiles();
+  QString relative_path = req_append.relativePath();
+  if (relative_path.startsWith("/"_L1)) relative_path.remove(0, 1);
+
+  QFileInfo fi_folder(root_dir, relative_path);
+  if (!fi_folder.exists()) {
+    qLog(Warning) << "Remote relative path " << relative_path << " doesn't exist...";
+    return;
+  }
+  else if (!fi_folder.isDir()) {
+    qLog(Warning) << "Remote relative path " << relative_path << " is not a directory...";
+    return;
+  }
+  else if (root_dir.relativeFilePath(fi_folder.absoluteFilePath()).startsWith("../"_L1)) {
+    qLog(Warning) << "Remote relative path " << relative_path << " should not be accessed...";
+    return;
+  }
+
+  QList<QUrl> urls;
+  QDir dir(fi_folder.absoluteFilePath());
+  for (const auto &file : req_append.files()) {
+    QFileInfo fi(dir, file);
+    if (fi.exists()) urls << QUrl::fromLocalFile(fi.canonicalFilePath());
+  }
+  if (!urls.isEmpty()) {
+    MimeData *data = new MimeData;
+    data->setUrls(urls);
+    if (req_append.hasPlayNow()) {
+      data->play_now_ = req_append.playNow();
+    }
+    if (req_append.hasClearFirst()) {
+      data->clear_first_ = req_append.clearFirst();
+    }
+    if (req_append.hasNewPlaylistName()) {
+      QString playlist_name = req_append.newPlaylistName();
+      if (!playlist_name.isEmpty()) {
+        data->open_in_new_playlist_ = true;
+        data->name_for_new_playlist_ = playlist_name;
+      }
+    }
+    else if (req_append.hasPlaylistId()) {
+      // If playing we will drop the files in another playlist
+      if (player_->GetState() == EngineBase::State::Playing) {
+        data->playlist_id_ = req_append.playlistId();
+      }
+      else {
+        // As we may play the song, we change the current playlist
+        Q_EMIT SetCurrentPlaylist(req_append.playlistId());
+      }
+    }
+    Q_EMIT AddToPlaylistSignal(data);
+  }
+
+}

src/networkremote/incomingdataparser.h

@@ -0,0 +1,123 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2012, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef INCOMINGDATAPARSER_H
+#define INCOMINGDATAPARSER_H
+
+#include <QObject>
+#include <QString>
+#include <QStringList>
+
+#include "constants/behavioursettings.h"
+#include "core/player.h"
+#include "networkremoteclient.h"
+#include "networkremotemessages.qpb.h"
+#include "playlist/playlistsequence.h"
+
+class PlaylistManager;
+class AudioScrobbler;
+
+class IncomingDataParser : public QObject {
+  Q_OBJECT
+
+ public:
+  explicit IncomingDataParser(const SharedPtr<Player> player,
+                              const SharedPtr<PlaylistManager> playlist_manager,
+                              const SharedPtr<AudioScrobbler> scrobbler,
+                              QObject *parent = nullptr);
+
+  ~IncomingDataParser();
+
+  bool close_connection() const;
+
+  void SetRemoteRootFiles(const QString &files_root_folder);
+
+ public Q_SLOTS:
+  void Parse(const networkremote::Message &msg);
+  void ReloadSettings();
+
+ Q_SIGNALS:
+  void SendInfo();
+  void SendFirstData(const bool send_playlist_songs);
+  void SendAllPlaylists();
+  void SendAllActivePlaylists();
+  void SendPlaylistSongs(const int id);
+  void New(const QString &name, const SongList &songs = SongList(), const QString &special_type = QString());
+  void Open(const int id);
+  void Clear(const int id);
+  void Close(const int id);
+  void Rename(const int id, const QString &new_playlist_name);
+  void Favorite(const int id, const bool favorite);
+  void GetLyrics();
+  void Love();
+
+  void Play();
+  void PlayPause();
+  void Pause();
+  void Stop(const bool stop_after = false);
+  void StopAfterCurrent();
+  void Next();
+  void Previous();
+  void SetVolume(const uint volume);
+  void PlayAt(const int index, const bool pause, const quint64 offset_nanosec, EngineBase::TrackChangeFlags change, const Playlist::AutoScroll autoscroll, const bool reshuffle, const bool force_inform);
+  void Enqueue(const int id, const int i);
+  void SetActivePlaylist(const int id);
+  void ShuffleCurrent();
+  void SetRepeatMode(const PlaylistSequence::RepeatMode repeat_mode);
+  void SetShuffleMode(const PlaylistSequence::ShuffleMode shuffle_mode);
+  void InsertUrls(const int id, const QList<QUrl> &urls, const int pos = -1, const bool play_now = false, const bool enqueue = false);
+  void InsertSongs(const int id, const SongList &songs, const int pos, const bool play_now, const bool enqueue);
+  void RemoveSongs(const int id, const QList<int> &indices);
+  void SeekTo(const quint64 seconds);
+  void SendCollection(NetworkRemoteClient *client);
+  void RateCurrentSong(const float rating);
+
+  void SendListFiles(const QString &path, NetworkRemoteClient *client);
+  void AddToPlaylistSignal(QMimeData *data);
+  void SetCurrentPlaylist(const int id);
+
+ private:
+  const SharedPtr<Player> player_;
+  const SharedPtr<PlaylistManager> playlist_manager_;
+  const SharedPtr<AudioScrobbler> scrobbler_;
+
+  bool close_connection_;
+  BehaviourSettings::PlaylistAddBehaviour doubleclick_playlist_addmode_;
+  QString files_root_folder_;
+
+  void ClientConnect(const networkremote::Message &msg, NetworkRemoteClient *client);
+  Song SongFromPbSongMetadata(const networkremote::SongMetadata &pb_song_metadata) const;
+
+  void ParseGetPlaylistSongs(const networkremote::Message &msg);
+  void ParseChangeSong(const networkremote::Message &msg);
+  void ParseSetRepeatMode(const networkremote::Repeat &repeat);
+  void ParseSetShuffleMode(const networkremote::Shuffle &shuffle);
+  void ParseInsertUrls(const networkremote::Message &msg);
+  void ParseRemoveSongs(const networkremote::Message &msg);
+  void ParseSendPlaylists(const networkremote::Message &msg);
+  void ParseOpenPlaylist(const networkremote::Message &msg);
+  void ParseClosePlaylist(const networkremote::Message &msg);
+  void ParseUpdatePlaylist(const networkremote::Message &msg);
+  void ParseRateSong(const networkremote::Message &msg);
+  void ParseAppendFilesToPlaylist(const networkremote::Message &msg);
+};
+
+#endif  // INCOMINGDATAPARSER_H

src/networkremote/networkremote.cpp

@@ -0,0 +1,231 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2012, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <memory>
+
+#include <QDataStream>
+#include <QHostInfo>
+#include <QNetworkProxy>
+#include <QTcpSocket>
+#include <QTcpServer>
+#include <QSettings>
+
+#include "constants/networkremotesettingsconstants.h"
+#include "constants/networkremoteconstants.h"
+#include "core/logging.h"
+#include "core/zeroconf.h"
+#include "playlist/playlistmanager.h"
+#include "covermanager/currentalbumcoverloader.h"
+#include "networkremote.h"
+#include "incomingdataparser.h"
+#include "outgoingdatacreator.h"
+
+using namespace Qt::Literals::StringLiterals;
+using namespace NetworkRemoteSettingsConstants;
+using namespace NetworkRemoteConstants;
+using std::make_unique;
+
+NetworkRemote::NetworkRemote(const SharedPtr<Database> database,
+                             const SharedPtr<Player> player,
+                             const SharedPtr<CollectionBackend> collection_backend,
+                             const SharedPtr<PlaylistManager> playlist_manager,
+                             const SharedPtr<PlaylistBackend> playlist_backend,
+                             const SharedPtr<CurrentAlbumCoverLoader> current_albumcover_loader,
+                             const SharedPtr<AudioScrobbler> scrobbler,
+                             QObject *parent)
+    : QObject(parent),
+      database_(database),
+      player_(player),
+      collection_backend_(collection_backend),
+      playlist_manager_(playlist_manager),
+      playlist_backend_(playlist_backend),
+      current_albumcover_loader_(current_albumcover_loader),
+      scrobbler_(scrobbler),
+      enabled_(false),
+      port_(0),
+      allow_public_access_(true),
+      signals_connected_(false) {
+
+  setObjectName("NetworkRemote");
+
+  ReloadSettings();
+
+}
+
+NetworkRemote::~NetworkRemote() { StopServer(); }
+
+void NetworkRemote::ReloadSettings() {
+
+  QSettings s;
+  s.beginGroup(kSettingsGroup);
+  enabled_ = s.value(kEnabled, false).toBool();
+  port_ = s.value("port", kDefaultServerPort).toInt();
+  allow_public_access_ = s.value(kAllowPublicAccess, false).toBool();
+  s.endGroup();
+
+  SetupServer();
+  StopServer();
+  StartServer();
+
+}
+
+void NetworkRemote::SetupServer() {
+
+  server_ = make_unique<QTcpServer>();
+  server_ipv6_ = make_unique<QTcpServer>();
+  incoming_data_parser_ = make_unique<IncomingDataParser>(player_, playlist_manager_, scrobbler_);
+  outgoing_data_creator_ = make_unique<OutgoingDataCreator>(database_, player_, playlist_manager_, playlist_backend_);
+
+  outgoing_data_creator_->SetClients(&clients_);
+
+  QObject::connect(&*current_albumcover_loader_, &CurrentAlbumCoverLoader::AlbumCoverLoaded, &*outgoing_data_creator_, &OutgoingDataCreator::CurrentSongChanged);
+
+  QObject::connect(&*server_, &QTcpServer::newConnection, this, &NetworkRemote::AcceptConnection);
+  QObject::connect(&*server_ipv6_, &QTcpServer::newConnection, this, &NetworkRemote::AcceptConnection);
+
+  QObject::connect(&*incoming_data_parser_, &IncomingDataParser::AddToPlaylistSignal, this, &NetworkRemote::AddToPlaylistSignal);
+  QObject::connect(&*incoming_data_parser_, &IncomingDataParser::SetCurrentPlaylist, this, &NetworkRemote::SetCurrentPlaylist);
+
+}
+
+void NetworkRemote::StartServer() {
+
+  if (!enabled_) {
+    qLog(Info) << "Network Remote deactivated";
+    return;
+  }
+
+  qLog(Info) << "Starting network remote";
+
+  server_->setProxy(QNetworkProxy::NoProxy);
+  server_ipv6_->setProxy(QNetworkProxy::NoProxy);
+
+  server_->listen(QHostAddress::Any, port_);
+  server_ipv6_->listen(QHostAddress::AnyIPv6, port_);
+
+  qLog(Info) << "Listening on port " << port_;
+
+  if (Zeroconf::GetZeroconf()) {
+    QString name = QLatin1String("Strawberry on %1").arg(QHostInfo::localHostName());
+    Zeroconf::GetZeroconf()->Publish(u"local"_s, u"_strawberry._tcp"_s, name, port_);
+  }
+
+}
+
+void NetworkRemote::StopServer() {
+
+  if (server_->isListening()) {
+    outgoing_data_creator_->DisconnectAllClients();
+    server_->close();
+    server_ipv6_->close();
+    qDeleteAll(clients_);
+    clients_.clear();
+  }
+
+}
+
+void NetworkRemote::AcceptConnection() {
+
+  if (!signals_connected_) {
+    signals_connected_ = true;
+
+    QObject::connect(&*incoming_data_parser_, &IncomingDataParser::SendInfo, &*outgoing_data_creator_, &OutgoingDataCreator::SendInfo);
+    QObject::connect(&*incoming_data_parser_, &IncomingDataParser::SendFirstData, &*outgoing_data_creator_, &OutgoingDataCreator::SendFirstData);
+    QObject::connect(&*incoming_data_parser_, &IncomingDataParser::SendAllPlaylists, &*outgoing_data_creator_, &OutgoingDataCreator::SendAllPlaylists);
+    QObject::connect(&*incoming_data_parser_, &IncomingDataParser::SendAllActivePlaylists, &*outgoing_data_creator_, &OutgoingDataCreator::SendAllActivePlaylists);
+    QObject::connect(&*incoming_data_parser_, &IncomingDataParser::SendPlaylistSongs, &*outgoing_data_creator_, &OutgoingDataCreator::SendPlaylistSongs);
+
+    QObject::connect(&*playlist_manager_, &PlaylistManager::ActiveChanged, &*outgoing_data_creator_, &OutgoingDataCreator::ActiveChanged);
+    QObject::connect(&*playlist_manager_, &PlaylistManager::PlaylistChanged, &*outgoing_data_creator_, &OutgoingDataCreator::PlaylistChanged);
+    QObject::connect(&*playlist_manager_, &PlaylistManager::PlaylistAdded, &*outgoing_data_creator_, &OutgoingDataCreator::PlaylistAdded);
+    QObject::connect(&*playlist_manager_, &PlaylistManager::PlaylistRenamed, &*outgoing_data_creator_, &OutgoingDataCreator::PlaylistRenamed);
+    QObject::connect(&*playlist_manager_, &PlaylistManager::PlaylistClosed, &*outgoing_data_creator_, &OutgoingDataCreator::PlaylistClosed);
+    QObject::connect(&*playlist_manager_, &PlaylistManager::PlaylistDeleted, &*outgoing_data_creator_, &OutgoingDataCreator::PlaylistDeleted);
+
+    QObject::connect(&*player_, &Player::VolumeChanged, &*outgoing_data_creator_, &OutgoingDataCreator::VolumeChanged);
+    QObject::connect(&*player_->engine(), &EngineBase::StateChanged, &*outgoing_data_creator_, &OutgoingDataCreator::StateChanged);
+
+    QObject::connect(&*playlist_manager_->sequence(), &PlaylistSequence::RepeatModeChanged, &*outgoing_data_creator_, &OutgoingDataCreator::SendRepeatMode);
+    QObject::connect(&*playlist_manager_->sequence(), &PlaylistSequence::ShuffleModeChanged, &*outgoing_data_creator_, &OutgoingDataCreator::SendShuffleMode);
+
+    QObject::connect(&*incoming_data_parser_, &IncomingDataParser::SendCollection, &*outgoing_data_creator_, &OutgoingDataCreator::SendCollection);
+    QObject::connect(&*incoming_data_parser_, &IncomingDataParser::SendListFiles, &*outgoing_data_creator_, &OutgoingDataCreator::SendListFiles);
+  }
+
+  QTcpServer *server = qobject_cast<QTcpServer*>(sender());
+  QTcpSocket *client_socket = server->nextPendingConnection();
+
+  if (!allow_public_access_ && !IpIsPrivate(client_socket->peerAddress())) {
+    qLog(Warning) << "Got connection from public IP address" << client_socket->peerAddress().toString();
+    client_socket->close();
+    client_socket->deleteLater();
+  }
+  else {
+    CreateRemoteClient(client_socket);
+  }
+
+}
+
+bool NetworkRemote::IpIsPrivate(const QHostAddress &address) {
+
+  return
+    // Localhost v4
+    address.isInSubnet(QHostAddress::parseSubnet(u"127.0.0.0/8"_s)) ||
+    // Link Local v4
+    address.isInSubnet(QHostAddress::parseSubnet(u"169.254.1.0/16"_s)) ||
+    // Link Local v6
+    address.isInSubnet(QHostAddress::parseSubnet(u"::1/128"_s)) ||
+    address.isInSubnet(QHostAddress::parseSubnet(u"fe80::/10"_s)) ||
+    // Private v4 range
+    address.isInSubnet(QHostAddress::parseSubnet(u"192.168.0.0/16"_s)) ||
+    address.isInSubnet(QHostAddress::parseSubnet(u"172.16.0.0/12"_s)) ||
+    address.isInSubnet(QHostAddress::parseSubnet(u"10.0.0.0/8"_s)) ||
+    // Private v4 range translated to v6
+    address.isInSubnet(QHostAddress::parseSubnet(u"::ffff:192.168.0.0/112"_s)) ||
+    address.isInSubnet(QHostAddress::parseSubnet(u"::ffff:172.16.0.0/108"_s)) ||
+    address.isInSubnet(QHostAddress::parseSubnet(u"::ffff:10.0.0.0/104"_s)) ||
+    // Private v6 range
+    address.isInSubnet(QHostAddress::parseSubnet(u"fc00::/7"_s));
+
+}
+
+void NetworkRemote::CreateRemoteClient(QTcpSocket *client_socket) {
+
+  if (client_socket) {
+
+    NetworkRemoteClient *client = new NetworkRemoteClient(player_, collection_backend_, playlist_manager_, client_socket);
+    clients_.push_back(client);
+
+    // Update the Remote Root Files for the latest Client
+    outgoing_data_creator_->SetMusicExtensions(client->files_music_extensions());
+    outgoing_data_creator_->SetRemoteRootFiles(client->files_root_folder());
+    incoming_data_parser_->SetRemoteRootFiles(client->files_root_folder());
+    // Update OutgoingDataCreator with latest allow_downloads setting
+    outgoing_data_creator_->SetAllowDownloads(client->allow_downloads());
+
+    // Connect the signal to parse data
+    QObject::connect(client, &NetworkRemoteClient::Parse, &*incoming_data_parser_, &IncomingDataParser::Parse);
+
+    client->IncomingData();
+
+  }
+
+}

src/networkremote/networkremote.h

@@ -0,0 +1,98 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2012, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef NETWORKREMOTE_H
+#define NETWORKREMOTE_H
+
+#include <QObject>
+#include <QList>
+
+#include "includes/shared_ptr.h"
+#include "includes/scoped_ptr.h"
+
+class QMimeData;
+class QHostAddress;
+class QTcpServer;
+class QTcpSocket;
+
+class Database;
+class Player;
+class CollectionBackend;
+class PlaylistManager;
+class PlaylistBackend;
+class CurrentAlbumCoverLoader;
+class AudioScrobbler;
+class IncomingDataParser;
+class OutgoingDataCreator;
+class NetworkRemoteClient;
+
+class NetworkRemote : public QObject {
+  Q_OBJECT
+
+ public:
+  explicit NetworkRemote(const SharedPtr<Database> database,
+                         const SharedPtr<Player> player,
+                         const SharedPtr<CollectionBackend> collection_backend,
+                         const SharedPtr<PlaylistManager> playlist_manager,
+                         const SharedPtr<PlaylistBackend> playlist_backend,
+                         const SharedPtr<CurrentAlbumCoverLoader> current_albumcover_loader,
+                         const SharedPtr<AudioScrobbler> scrobbler,
+                         QObject *parent = nullptr);
+
+  ~NetworkRemote();
+
+ Q_SIGNALS:
+  void AddToPlaylistSignal(QMimeData *data);
+  void SetCurrentPlaylist(const int id);
+
+ public Q_SLOTS:
+  void SetupServer();
+  void StartServer();
+  void ReloadSettings();
+  void AcceptConnection();
+
+ private:
+  const SharedPtr<Database> database_;
+  const SharedPtr<Player> player_;
+  const SharedPtr<CollectionBackend> collection_backend_;
+  const SharedPtr<PlaylistManager> playlist_manager_;
+  const SharedPtr<PlaylistBackend> playlist_backend_;
+  const SharedPtr<CurrentAlbumCoverLoader> current_albumcover_loader_;
+  const SharedPtr<AudioScrobbler> scrobbler_;
+
+  ScopedPtr<QTcpServer> server_;
+  ScopedPtr<QTcpServer> server_ipv6_;
+  ScopedPtr<IncomingDataParser> incoming_data_parser_;
+  ScopedPtr<OutgoingDataCreator> outgoing_data_creator_;
+
+  bool enabled_;
+  quint16 port_;
+  bool allow_public_access_;
+  bool signals_connected_;
+
+  QList<NetworkRemoteClient*> clients_;
+
+  void StopServer();
+  void CreateRemoteClient(QTcpSocket *client_socket);
+  bool IpIsPrivate(const QHostAddress &address);
+};
+
+#endif  // NETWORKREMOTE_H

src/networkremote/networkremoteclient.cpp

@@ -0,0 +1,223 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2013, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <QDataStream>
+#include <QTcpSocket>
+#include <QProtobufSerializer>
+#include <QSettings>
+
+#include "constants/networkremotesettingsconstants.h"
+#include "core/logging.h"
+#include "networkremote.h"
+#include "networkremoteclient.h"
+#include "networkremotemessages.qpb.h"
+
+using namespace Qt::Literals::StringLiterals;
+using namespace NetworkRemoteSettingsConstants;
+
+NetworkRemoteClient::NetworkRemoteClient(const SharedPtr<Player> player,
+                                         const SharedPtr<CollectionBackend> collection_backend,
+                                         const SharedPtr<PlaylistManager> playlist_manager,
+                                         QTcpSocket *socket,
+                                         QObject *parent)
+    : QObject(parent),
+      player_(player),
+      socket_(socket),
+      downloader_(false),
+      reading_protobuf_(false),
+      expected_length_(0),
+      song_sender_(new SongSender(player, collection_backend, playlist_manager, this)) {
+
+  QObject::connect(socket, &QTcpSocket::readyRead, this, &NetworkRemoteClient::ReadyRead);
+  QObject::connect(socket, &QTcpSocket::channelReadyRead, this, &NetworkRemoteClient::ReadyRead);
+
+  QSettings s;
+  s.beginGroup(kSettingsGroup);
+  use_auth_code_ = s.value(kUseAuthCode, false).toBool();
+  auth_code_ = s.value(kAuthCode, 0).toInt();
+  files_root_folder_ = s.value(kFilesRootFolder, ""_L1).toString();
+  s.endGroup();
+
+  authenticated_ = !use_auth_code_;
+
+}
+
+NetworkRemoteClient::~NetworkRemoteClient() {
+
+  socket_->close();
+  if (socket_->state() == QAbstractSocket::ConnectedState) {
+    socket_->waitForDisconnected(2000);
+  }
+
+  song_sender_->deleteLater();
+  socket_->deleteLater();
+
+}
+
+void NetworkRemoteClient::setDownloader(const bool downloader) { downloader_ = downloader; }
+
+void NetworkRemoteClient::ReadyRead() {
+
+  IncomingData();
+
+}
+
+void NetworkRemoteClient::IncomingData() {
+
+  while (socket_->bytesAvailable()) {
+    if (!reading_protobuf_) {
+      // If we have less than 4 byte, we cannot read the length. Wait for more data
+      if (socket_->bytesAvailable() < 4) {
+        break;
+      }
+      // Read the length of the next message
+      QDataStream s(socket_);
+      s >> expected_length_;
+
+      // Receiving more than 128 MB is very unlikely
+      // Flush the data and disconnect the client
+      if (expected_length_ > 134217728) {
+        qLog(Debug) << "Received invalid data, disconnect client";
+        qLog(Debug) << "expected_length_ =" << expected_length_;
+        socket_->close();
+        return;
+      }
+
+      reading_protobuf_ = true;
+    }
+
+    // Read some of the message
+    buffer_.append(socket_->read(static_cast<qint32>(expected_length_) - buffer_.size()));
+
+    // Did we get everything?
+    if (buffer_.size() == static_cast<qint32>(expected_length_)) {
+
+      ParseMessage(buffer_);
+
+      // Clear the buffer
+      buffer_.clear();
+      reading_protobuf_ = false;
+    }
+  }
+
+}
+
+void NetworkRemoteClient::ParseMessage(const QByteArray &data) {
+
+  QProtobufSerializer serializer;
+  networkremote::Message msg;
+  if (!serializer.deserialize(&msg, data)) {
+    qLog(Info) << "Couldn't parse data:" << serializer.lastErrorString();
+    return;
+  }
+
+  if (msg.type() == networkremote::MsgTypeGadget::MsgType::CONNECT && use_auth_code_) {
+    if (msg.requestConnect().authCode() != auth_code_) {
+      DisconnectClient(networkremote::ReasonDisconnectGadget::ReasonDisconnect::Wrong_Auth_Code);
+      return;
+    }
+    else {
+      authenticated_ = true;
+    }
+  }
+
+  if (msg.type() == networkremote::MsgTypeGadget::MsgType::CONNECT) {
+    setDownloader(msg.requestConnect().hasDownloader() && msg.requestConnect().downloader());
+    qLog(Debug) << "Downloader" << downloader_;
+  }
+
+  // Check if downloads are allowed
+  if (msg.type() == networkremote::MsgTypeGadget::MsgType::DOWNLOAD_SONGS && !allow_downloads_) {
+    DisconnectClient(networkremote::ReasonDisconnectGadget::ReasonDisconnect::Download_Forbidden);
+    return;
+  }
+
+  if (msg.type() == networkremote::MsgTypeGadget::MsgType::DISCONNECT) {
+    socket_->abort();
+    qLog(Debug) << "Client disconnected";
+    return;
+  }
+
+  // Check if the client has sent the correct auth code
+  if (!authenticated_) {
+    DisconnectClient(networkremote::ReasonDisconnectGadget::ReasonDisconnect::Not_Authenticated);
+    return;
+  }
+
+  // Now parse the other data
+  Q_EMIT Parse(msg);
+
+}
+
+void NetworkRemoteClient::DisconnectClient(const networkremote::ReasonDisconnectGadget::ReasonDisconnect reason) {
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::DISCONNECT);
+
+  networkremote::ResponseDisconnect response_disconnect;
+  response_disconnect.setReasonDisconnect(reason);
+  msg.setResponseDisconnect(response_disconnect);
+  SendDataToClient(&msg);
+
+  // Just close the connection. The next time the outgoing data creator sends a keep alive, the client will be deleted
+  socket_->close();
+
+}
+
+// Sends data to client without check if authenticated
+void NetworkRemoteClient::SendDataToClient(networkremote::Message *msg) {
+
+  //msg->setVersion(msg);
+
+  if (socket_->state() == QTcpSocket::ConnectedState) {
+    // Serialize the message
+    QProtobufSerializer serializer;
+    const QByteArray data = serializer.serialize(msg);
+
+    // Write the length of the data first
+    QDataStream s(socket_);
+    s << static_cast<qint32>(data.length());
+    if (downloader_) {
+      // Don't use QDataSteam for large files
+      socket_->write(data.data(), data.length());
+    }
+    else {
+      s.writeRawData(data.data(), data.length());
+    }
+
+    // Do NOT flush data here! If the client is already disconnected, it causes a SIGPIPE termination!!!
+  }
+  else {
+    qDebug() << "Closed";
+    socket_->close();
+  }
+
+}
+
+void NetworkRemoteClient::SendData(networkremote::Message *msg) {
+
+  if (authenticated_) {
+    SendDataToClient(msg);
+  }
+
+}
+
+QAbstractSocket::SocketState NetworkRemoteClient::State() const { return socket_->state(); }

src/networkremote/networkremoteclient.h

@@ -0,0 +1,89 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2013, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef NETWORKREMOTECLIENT_H
+#define NETWORKREMOTECLIENT_H
+
+#include <QObject>
+#include <QByteArray>
+#include <QString>
+#include <QStringList>
+#include <QAbstractSocket>
+
+#include "networkremotemessages.qpb.h"
+#include "songsender.h"
+
+class QTcpSocket;
+
+class NetworkRemoteClient : public QObject {
+  Q_OBJECT
+
+ public:
+  explicit NetworkRemoteClient(const SharedPtr<Player> player,
+                               const SharedPtr<CollectionBackend> collection_backend,
+                               const SharedPtr<PlaylistManager> playlist_manager,
+                               QTcpSocket *client,
+                               QObject *parent = nullptr);
+
+  ~NetworkRemoteClient();
+
+  void SendData(networkremote::Message *msg);
+  QAbstractSocket::SocketState State() const;
+  void setDownloader(const bool downloader);
+  bool isDownloader() const { return downloader_; }
+  void DisconnectClient(const networkremote::ReasonDisconnectGadget::ReasonDisconnect reason);
+
+  SongSender *song_sender() const { return song_sender_; }
+  const QString &files_root_folder() const { return files_root_folder_; }
+  const QStringList &files_music_extensions() const { return files_music_extensions_; }
+  bool allow_downloads() const { return allow_downloads_; }
+
+ public Q_SLOTS:
+  void ReadyRead();
+  void IncomingData();
+
+ Q_SIGNALS:
+  void Parse(const networkremote::Message &msg);
+
+ private:
+  void ParseMessage(const QByteArray &data);
+  void SendDataToClient(networkremote::Message *msg);
+
+ private:
+  const SharedPtr<Player> player_;
+  QTcpSocket *socket_;
+
+  bool use_auth_code_;
+  int auth_code_;
+  bool authenticated_;
+  bool allow_downloads_;
+  bool downloader_;
+
+  bool reading_protobuf_;
+  quint32 expected_length_;
+  QByteArray buffer_;
+  SongSender *song_sender_;
+
+  QString files_root_folder_;
+  QStringList files_music_extensions_;
+};
+
+#endif  // NETWORKREMOTECLIENT_H

src/networkremote/networkremotemessages.proto

@@ -0,0 +1,422 @@
+syntax = "proto2";
+
+package networkremote;
+
+enum MsgType {
+
+  UNKNOWN = 0;
+
+  CONNECT = 1;
+  DISCONNECT = 2;
+
+  INFO = 3;
+  KEEP_ALIVE = 4;
+
+  GET_COLLECTION = 5;
+
+  GET_PLAYLISTS = 6;
+  GET_PLAYLIST_SONGS = 7;
+  SEND_PLAYLISTS = 8;
+  SEND_PLAYLIST_SONGS = 10;
+
+  OPEN_PLAYLIST = 11;
+  CLOSE_PLAYLIST = 12;
+  UPDATE_PLAYLIST = 13;
+  REMOVE_PLAYLIST_SONGS = 14;
+  PLAYLIST_INSERT_URLS = 15;
+
+  CHANGE_SONG = 21;
+  SET_VOLUME = 22;
+  SET_TRACK_POSITION = 23;
+  GET_LYRICS = 24;
+  DOWNLOAD_SONGS = 25;
+  SONG_OFFER_RESPONSE = 26;
+  SONG_OFFER_FILE_CHUNK = 27;
+  CURRENT_METAINFO = 28;
+  ENGINE_STATE_CHANGED = 29;
+  UPDATE_TRACK_POSITION = 30;
+  ACTIVE_PLAYLIST_CHANGED = 31;
+  FIRST_DATA_SENT_COMPLETE = 32;
+  LYRICS = 33;
+  DOWNLOAD_QUEUE_EMPTY = 34;
+  COLLECTION_CHUNK = 35;
+  DOWNLOAD_TOTAL_SIZE = 36;
+  TRANSCODING_FILES = 37;
+
+  PLAYPAUSE = 101;
+  PLAY = 102;
+  PAUSE = 103;
+  STOP = 104;
+  STOP_AFTER = 105;
+  NEXT = 106;
+  PREVIOUS = 107;
+  SHUFFLE_PLAYLIST = 108;
+
+  REPEAT = 111;
+  SHUFFLE = 112;
+
+  LIST_FILES = 121;
+  REQUEST_FILES = 122;
+  APPEND_FILES = 123;
+
+  LOVE = 131;
+  RATE_SONG = 132;
+
+}
+
+enum EngineState {
+  EngineState_Empty = 0;
+  EngineState_Idle = 1;
+  EngineState_Playing = 2;
+  EngineState_Paused = 3;
+}
+
+message SongMetadata {
+
+  enum Source {
+    Source_Unknown = 0;
+    Source_LocalFile = 1;
+    Source_Collection = 2;
+    Source_CDDA = 3;
+    Source_Device = 4;
+    Source_Stream = 5;
+    Source_Tidal = 6;
+    Source_Subsonic = 7;
+    Source_Qobuz = 8;
+    Source_SomaFM = 9;
+    Source_RadioParadise = 10;
+    Source_Spotify = 11;
+  }
+
+  enum FileType {
+    FileType_Unknown = 0;
+    FileType_WAV = 1;
+    FileType_FLAC = 2;
+    FileType_WavPack = 3;
+    FileType_OggFlac = 4;
+    FileType_OggVorbis = 5;
+    FileType_OggOpus = 6;
+    FileType_OggSpeex = 7;
+    FileType_MPEG = 8;
+    FileType_MP4 = 9;
+    FileType_ASF = 10;
+    FileType_AIFF = 11;
+    FileType_MPC = 12;
+    FileType_TrueAudio = 13;
+    FileType_DSF = 14;
+    FileType_DSDIFF = 15;
+    FileType_PCM = 16;
+    FileType_APE = 17;
+    FileType_MOD = 18;
+    FileType_S3M = 19;
+    FileType_XM = 20;
+    FileType_IT = 21;
+    FileType_SPC = 22;
+    FileType_VGM = 23;
+    FileType_CDDA = 90;
+    FileType_Stream = 91;
+  }
+
+  optional int32 song_id = 1;
+  optional int32 index = 2;
+  optional string title = 3;
+  optional string album = 4;
+  optional string artist = 5;
+  optional string albumartist = 6;
+  optional int32 track = 7;
+  optional int32 disc = 8;
+  optional string pretty_year = 9;
+  optional string genre = 10;
+  optional uint32 playcount = 11;
+  optional string pretty_length = 12;
+  optional bytes art = 13;
+  optional int64 length = 14;
+  optional bool is_local = 15;
+  optional Source source = 22;
+  optional FileType filetype = 23;
+  optional string filename = 16;
+  optional int64 file_size = 17;
+  optional float rating = 18;
+  optional string url = 19;
+  optional string art_automatic = 20;
+  optional string art_manual = 21;
+
+}
+
+message Playlist {
+  optional int32 playlist_id = 1;
+  optional string name = 2;
+  optional int32 item_count = 3;
+  optional bool active = 4;
+  optional bool closed = 5;
+  optional bool favorite = 6;
+}
+
+enum RepeatMode {
+  RepeatMode_Off = 0;
+  RepeatMode_Track = 1;
+  RepeatMode_Album = 2;
+  RepeatMode_Playlist = 3;
+  RepeatMode_OneByOne = 4;
+  RepeatMode_Intro = 5;
+}
+
+enum ShuffleMode {
+  ShuffleMode_Off = 0;
+  ShuffleMode_All = 1;
+  ShuffleMode_InsideAlbum = 2;
+  ShuffleMode_Albums = 3;
+}
+
+message RequestPlaylists {
+  optional bool include_closed = 1;
+}
+
+message RequestPlaylistSongs {
+  optional int32 playlist_id = 1;
+}
+
+message RequestChangeSong {
+  optional int32 playlist_id = 1;
+  optional int32 song_index = 2;
+}
+
+message RequestSetVolume {
+  optional uint32 volume = 1;
+}
+
+message Repeat {
+  optional RepeatMode repeat_mode = 1;
+}
+
+message Shuffle {
+  optional ShuffleMode shuffle_mode = 1;
+}
+
+message ResponseInfo {
+  optional string version = 1;
+  optional EngineState state = 2;
+  optional bool allow_downloads = 3;
+  repeated string files_music_extensions = 4;
+}
+
+message ResponseCurrentMetadata {
+  optional SongMetadata song_metadata = 1;
+}
+
+message ResponsePlaylists {
+  repeated Playlist playlist = 1;
+  optional bool include_closed = 2;
+}
+
+message ResponsePlaylistSongs {
+  optional Playlist requested_playlist = 1;
+  repeated SongMetadata songs = 2;
+}
+
+message ResponseEngineStateChanged {
+  optional EngineState state = 1;
+}
+
+message ResponseUpdateTrackPosition {
+  optional int32 position = 1;
+}
+
+message RequestConnect {
+  optional int32 auth_code = 1;
+  optional bool send_playlist_songs = 2;
+  optional bool downloader = 3;
+}
+
+enum ReasonDisconnect {
+  Server_Shutdown = 1;
+  Wrong_Auth_Code = 2;
+  Not_Authenticated = 3;
+  Download_Forbidden = 4;
+}
+
+message ResponseDisconnect {
+  optional ReasonDisconnect reason_disconnect = 1;
+}
+
+message ResponseActiveChanged {
+  optional int32 playlist_id = 1;
+}
+
+message RequestSetTrackPosition {
+  optional int32 position = 1;
+}
+
+message RequestInsertUrls {
+
+  optional int32 playlist_id = 1;
+  repeated string urls = 2;
+  optional int32 position = 3 [default = -1];
+  optional bool play_now = 4 [default = false];
+  optional bool enqueue = 5 [default = false];
+  repeated SongMetadata songs = 6;
+  optional string new_playlist_name = 7;
+
+}
+
+message RequestRemoveSongs {
+  optional int32 playlist_id = 1;
+  repeated int32 songs = 2;
+}
+
+message RequestOpenPlaylist {
+  optional int32 playlist_id = 1;
+}
+
+message RequestClosePlaylist {
+  optional int32 playlist_id = 1;
+}
+
+message RequestUpdatePlaylist {
+  optional int32 playlist_id = 1;
+  optional string new_playlist_name = 2;
+  optional bool favorite = 3;
+  optional bool create_new_playlist = 4;
+  optional bool clear_playlist = 5;
+}
+
+message ResponseLyrics {
+  repeated Lyric lyrics = 1;
+}
+message Lyric {
+  optional string song_id = 1;
+  optional string title = 2;
+  optional string content = 3;
+}
+
+enum DownloadItem {
+  CurrentItem = 1;
+  ItemAlbum = 2;
+  APlaylist = 3;
+  Urls = 4;
+}
+
+message RequestDownloadSongs {
+  optional DownloadItem download_item = 1;
+  optional int32 playlist_id = 2;
+  repeated string urls = 3;
+  repeated int32 songs_ids = 4;
+  optional string relative_path = 5;
+}
+
+message ResponseSongFileChunk {
+  optional int32 chunk_number = 1;
+  optional int32 chunk_count = 2;
+  optional int32 file_number = 3;
+  optional int32 file_count = 4;
+  optional SongMetadata song_metadata = 6;
+  optional bytes data = 7;
+  optional int64 size = 8;
+  optional bytes file_hash = 9;
+}
+
+message ResponseCollectionChunk {
+  optional int32 chunk_number = 1;
+  optional int32 chunk_count = 2;
+  optional bytes data = 3;
+  optional int64 size = 4;
+  optional bytes file_hash = 5;
+}
+
+message ResponseSongOffer {
+  optional bool accepted = 1;
+}
+
+message RequestRateSong {
+  optional float rating = 1;
+}
+
+message ResponseDownloadTotalSize {
+  optional int64 total_size = 1;
+  optional int64 file_count = 2;
+}
+
+message ResponseTranscoderStatus {
+  optional int32 processed = 1;
+  optional int32 total = 2;
+}
+
+message RequestListFiles {
+  optional string relative_path = 1;
+}
+
+message FileMetadata {
+  optional string filename = 1;
+  optional bool is_dir = 2;
+}
+
+message ResponseListFiles {
+  enum Error {
+    NONE = 0;
+    ROOT_DIR_NOT_SET = 1;
+    DIR_NOT_ACCESSIBLE = 2;
+    DIR_NOT_EXIST = 3;
+    UNKNOWN = 4;
+  }
+  optional string relative_path = 1;
+  repeated FileMetadata files = 2;
+  optional Error error = 3;
+}
+
+message RequestAppendFiles {
+  optional int32 playlist_id = 1;
+  optional string new_playlist_name = 2;
+  optional string relative_path = 3;
+  repeated string files = 4;
+  optional bool play_now = 5;
+  optional bool clear_first = 6;
+}
+
+message Stream {
+  optional string name = 1;
+  optional string url = 2;
+  optional string url_logo = 3;
+}
+
+message Message {
+
+  optional int32 version = 1 [default = 21];
+  optional MsgType type = 2
+      [default = UNKNOWN];
+
+  optional RequestConnect request_connect = 21;
+  optional RequestPlaylists request_playlists = 27;
+  optional RequestPlaylistSongs request_playlist_songs = 10;
+  optional RequestChangeSong request_change_song = 11;
+  optional RequestSetVolume request_set_volume = 12;
+  optional RequestSetTrackPosition request_set_track_position = 23;
+  optional RequestInsertUrls request_insert_urls = 25;
+  optional RequestRemoveSongs request_remove_songs = 26;
+  optional RequestOpenPlaylist request_open_playlist = 28;
+  optional RequestClosePlaylist request_close_playlist = 29;
+  optional RequestUpdatePlaylist request_update_playlist = 53;
+  optional RequestDownloadSongs request_download_songs = 31;
+  optional RequestRateSong request_rate_song = 35;
+  optional RequestListFiles request_list_files = 50;
+  optional RequestAppendFiles request_append_files = 51;
+
+  optional Repeat repeat = 13;
+  optional Shuffle shuffle = 14;
+
+  optional ResponseInfo response_info = 15;
+  optional ResponseCurrentMetadata response_current_metadata = 16;
+  optional ResponsePlaylists response_playlists = 17;
+  optional ResponsePlaylistSongs response_playlist_songs = 18;
+  optional ResponseEngineStateChanged response_engine_state_changed = 19;
+  optional ResponseUpdateTrackPosition response_update_track_position = 20;
+  optional ResponseDisconnect response_disconnect = 22;
+  optional ResponseActiveChanged response_active_changed = 24;
+  optional ResponseLyrics response_lyrics = 30;
+  optional ResponseSongFileChunk response_song_file_chunk = 32;
+  optional ResponseSongOffer response_song_offer = 33;
+  optional ResponseCollectionChunk response_collection_chunk = 34;
+  optional ResponseDownloadTotalSize response_download_total_size = 36;
+  optional ResponseTranscoderStatus response_transcoder_status = 39;
+  optional ResponseListFiles response_list_files = 52;
+
+}

src/networkremote/outgoingdatacreator.cpp

@@ -0,0 +1,638 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2012, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <cmath>
+
+#include <QCoreApplication>
+#include <QDir>
+#include <QSqlDatabase>
+#include <QSqlQuery>
+#include <QBuffer>
+#include <QTimer>
+#include <QStandardPaths>
+
+#include "includes/shared_ptr.h"
+#include "constants/timeconstants.h"
+#include "utilities/randutils.h"
+#include "core/player.h"
+#include "core/database.h"
+#include "core/sqlquery.h"
+#include "core/logging.h"
+#include "utilities/cryptutils.h"
+#include "collection/collectionbackend.h"
+#include "playlist/playlistmanager.h"
+#include "playlist/playlistbackend.h"
+#include "networkremote.h"
+#include "networkremoteclient.h"
+#include "outgoingdatacreator.h"
+
+using namespace std::chrono_literals;
+using namespace Qt::Literals::StringLiterals;
+
+namespace {
+constexpr quint32 kFileChunkSize = 100000;
+}
+
+OutgoingDataCreator::OutgoingDataCreator(const SharedPtr<Database> database,
+                                         const SharedPtr<Player> player,
+                                         const SharedPtr<PlaylistManager> playlist_manager,
+                                         const SharedPtr<PlaylistBackend> playlist_backend,
+                                         QObject *parent)
+    : QObject(parent),
+      database_(database),
+      player_(player),
+      playlist_manager_(playlist_manager),
+      playlist_backend_(playlist_backend),
+      keep_alive_timer_(new QTimer(this)),
+      keep_alive_timeout_(10000) {
+
+  QObject::connect(keep_alive_timer_, &QTimer::timeout, this, &OutgoingDataCreator::SendKeepAlive);
+
+}
+
+OutgoingDataCreator::~OutgoingDataCreator() = default;
+
+void OutgoingDataCreator::SetClients(QList<NetworkRemoteClient*> *clients) {
+
+  clients_ = clients;
+  // After we got some clients, start the keep alive timer
+  // Default: every 10 seconds
+  keep_alive_timer_->start(keep_alive_timeout_);
+
+  // Create the song position timer
+  track_position_timer_ = new QTimer(this);
+  QObject::connect(track_position_timer_, &QTimer::timeout, this, &OutgoingDataCreator::UpdateTrackPosition);
+
+}
+
+void OutgoingDataCreator::SendDataToClients(networkremote::Message *msg) {
+
+  if (clients_->empty()) {
+    return;
+  }
+
+  for (NetworkRemoteClient *client : std::as_const(*clients_)) {
+    // Do not send data to downloaders
+    if (client->isDownloader()) {
+      if (client->State() != QTcpSocket::ConnectedState) {
+        clients_->removeAt(clients_->indexOf(client));
+        delete client;
+      }
+      continue;
+    }
+
+    // Check if the client is still active
+    if (client->State() == QTcpSocket::ConnectedState) {
+      client->SendData(msg);
+    }
+    else {
+      clients_->removeAt(clients_->indexOf(client));
+      delete client;
+    }
+  }
+
+}
+
+void OutgoingDataCreator::SendInfo() {
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::INFO);
+  networkremote::ResponseInfo info;
+  info.setVersion(QLatin1String("%1 %2").arg(QCoreApplication::applicationName(), QCoreApplication::applicationVersion()));
+  info.setFilesMusicExtensions(files_music_extensions_);
+  info.setAllowDownloads(allow_downloads_);
+  info.setState(GetEngineState());
+  msg.setResponseInfo(info);
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::SendKeepAlive() {
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::KEEP_ALIVE);
+  SendDataToClients(&msg);
+
+}
+
+networkremote::EngineStateGadget::EngineState OutgoingDataCreator::GetEngineState() {
+
+  switch (player_->GetState()) {
+    case EngineBase::State::Idle:
+      return networkremote::EngineStateGadget::EngineState::EngineState_Idle;
+      break;
+    case EngineBase::State::Error:
+    case EngineBase::State::Empty:
+      return networkremote::EngineStateGadget::EngineState::EngineState_Empty;
+      break;
+    case EngineBase::State::Playing:
+      return networkremote::EngineStateGadget::EngineState::EngineState_Playing;
+      break;
+    case EngineBase::State::Paused:
+      return networkremote::EngineStateGadget::EngineState::EngineState_Paused;
+      break;
+  }
+
+  return networkremote::EngineStateGadget::EngineState::EngineState_Empty;
+
+}
+
+void OutgoingDataCreator::SendAllPlaylists() {
+
+  // Get all Playlists
+  const int active_playlist = playlist_manager_->active_id();
+
+  // Create message
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::SEND_PLAYLISTS);
+
+  networkremote::ResponsePlaylists playlists = msg.responsePlaylists();
+  playlists.setIncludeClosed(true);
+
+  // Get all playlists, even ones that are hidden in the UI.
+  const QList<PlaylistBackend::Playlist> all_playlists = playlist_backend_->GetAllPlaylists();
+  for (const PlaylistBackend::Playlist &p : all_playlists) {
+    const bool playlist_open = playlist_manager_->IsPlaylistOpen(p.id);
+    const int item_count = playlist_open ? playlist_manager_->playlist(p.id)->rowCount() : 0;
+
+    // Create a new playlist
+    networkremote::Playlist playlist;// = playlists.playlist();
+    playlist.setPlaylistId(p.id);
+    playlist.setName(p.name);
+    playlist.setActive((p.id == active_playlist));
+    playlist.setItemCount(item_count);
+    playlist.setClosed(!playlist_open);
+    playlist.setFavorite(p.favorite);
+  }
+
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::SendAllActivePlaylists() {
+
+  const int active_playlist = playlist_manager_->active_id();
+
+  const QList<Playlist*> playlists = playlist_manager_->GetAllPlaylists();
+  QList<networkremote::Playlist> pb_playlists;
+  pb_playlists.reserve(playlists.count());
+  for (Playlist *p : playlists) {
+    networkremote::Playlist pb_playlist;
+    pb_playlist.setPlaylistId(p->id());
+    pb_playlist.setName(playlist_manager_->GetPlaylistName(p->id()));
+    pb_playlist.setActive(p->id() == active_playlist);
+    pb_playlist.setItemCount(p->rowCount());
+    pb_playlist.setClosed(false);
+    pb_playlist.setFavorite(p->is_favorite());
+    pb_playlists << pb_playlist;
+  }
+
+  networkremote::ResponsePlaylists response_playlists;
+  response_playlists.setPlaylist(pb_playlists);
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::SEND_PLAYLISTS);
+  msg.setResponsePlaylists(response_playlists);
+
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::ActiveChanged(Playlist *playlist) {
+
+  SendPlaylistSongs(playlist->id());
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::ACTIVE_PLAYLIST_CHANGED);
+  networkremote::ResponseActiveChanged response_active_changed;
+  response_active_changed.setPlaylistId(playlist->id());
+  msg.setResponseActiveChanged(response_active_changed);
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::PlaylistAdded(const int id, const QString &name, const bool favorite) {
+
+  Q_UNUSED(id)
+  Q_UNUSED(name)
+  Q_UNUSED(favorite)
+
+  SendAllActivePlaylists();
+
+}
+
+void OutgoingDataCreator::PlaylistDeleted(const int id) {
+
+  Q_UNUSED(id)
+
+  SendAllActivePlaylists();
+
+}
+
+void OutgoingDataCreator::PlaylistClosed(const int id) {
+
+  Q_UNUSED(id)
+
+  SendAllActivePlaylists();
+
+}
+
+void OutgoingDataCreator::PlaylistRenamed(const int id, const QString &new_name) {
+
+  Q_UNUSED(id)
+  Q_UNUSED(new_name)
+
+  SendAllActivePlaylists();
+
+}
+
+void OutgoingDataCreator::SendFirstData(const bool send_playlist_songs) {
+
+  CurrentSongChanged(current_song_, albumcoverloader_result_);
+
+  VolumeChanged(player_->GetVolume());
+
+  if (!track_position_timer_->isActive() && player_->engine()->state() == EngineBase::State::Playing) {
+    track_position_timer_->start(1s);
+  }
+
+  UpdateTrackPosition();
+
+  SendAllActivePlaylists();
+
+  if (send_playlist_songs) {
+    SendPlaylistSongs(playlist_manager_->active_id());
+  }
+
+  SendShuffleMode(playlist_manager_->sequence()->shuffle_mode());
+  SendRepeatMode(playlist_manager_->sequence()->repeat_mode());
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::FIRST_DATA_SENT_COMPLETE);
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::CurrentSongChanged(const Song &song, const AlbumCoverLoaderResult &result) {
+
+  albumcoverloader_result_ = result;
+  current_song_ = song;
+  current_image_ = result.album_cover.image;
+
+  SendSongMetadata();
+
+}
+
+void OutgoingDataCreator::SendSongMetadata() {
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::CURRENT_METAINFO);
+  const networkremote::SongMetadata pb_song_metadata = PbSongMetadataFromSong(playlist_manager_->active()->current_row(), current_song_, current_image_);
+  networkremote::ResponseCurrentMetadata response_current_metadata;
+  response_current_metadata.setSongMetadata(pb_song_metadata);
+  msg.setResponseCurrentMetadata(response_current_metadata);
+  SendDataToClients(&msg);
+
+}
+
+networkremote::SongMetadata OutgoingDataCreator::PbSongMetadataFromSong(const int index, const Song &song, const QImage &image_cover_art) {
+
+  if (!song.is_valid()) {
+    return networkremote::SongMetadata();
+  }
+
+  networkremote::SongMetadata pb_song_metadata;
+  pb_song_metadata.setSongId(song.id());
+  pb_song_metadata.setIndex(index);
+  pb_song_metadata.setTitle(song.PrettyTitle());
+  pb_song_metadata.setArtist(song.artist());
+  pb_song_metadata.setAlbum(song.album());
+  pb_song_metadata.setAlbumartist(song.albumartist());
+  pb_song_metadata.setLength(song.length_nanosec() / kNsecPerSec);
+  pb_song_metadata.setPrettyLength(song.PrettyLength());
+  pb_song_metadata.setGenre(song.genre());
+  pb_song_metadata.setPrettyYear(song.PrettyYear());
+  pb_song_metadata.setTrack(song.track());
+  pb_song_metadata.setDisc(song.disc());
+  pb_song_metadata.setPlaycount(song.playcount());
+  pb_song_metadata.setIsLocal(song.url().isLocalFile());
+  pb_song_metadata.setFilename(song.basefilename());
+  pb_song_metadata.setFileSize(song.filesize());
+  pb_song_metadata.setRating(song.rating());
+  pb_song_metadata.setUrl(song.url().toString());
+  pb_song_metadata.setArtAutomatic(song.art_automatic().toString());
+  pb_song_metadata.setArtManual(song.art_manual().toString());
+  pb_song_metadata.setFiletype(static_cast<networkremote::SongMetadata::FileType>(song.filetype()));
+
+  if (!image_cover_art.isNull()) {
+    QImage image_cover_art_small;
+    if (image_cover_art.width() > 1000 || image_cover_art.height() > 1000) {
+      image_cover_art_small = image_cover_art.scaled(1000, 1000, Qt::KeepAspectRatio);
+    }
+    else {
+      image_cover_art_small = image_cover_art;
+    }
+
+    QByteArray data;
+    QBuffer buffer(&data);
+    if (buffer.open(QIODevice::WriteOnly)) {
+      image_cover_art_small.save(&buffer, "JPG");
+      buffer.close();
+    }
+
+    pb_song_metadata.setArt(data);
+  }
+
+  return pb_song_metadata;
+
+}
+
+void OutgoingDataCreator::VolumeChanged(const uint volume) {
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::SET_VOLUME);
+  networkremote::RequestSetVolume request_set_volume;
+  request_set_volume.setVolume(volume);
+  msg.setRequestSetVolume(request_set_volume);
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::SendPlaylistSongs(const int playlist_id) {
+
+  Playlist *playlist = playlist_manager_->playlist(playlist_id);
+  if (!playlist) {
+    qLog(Error) << "Could not find playlist with ID" << playlist_id;
+    return;
+  }
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::SEND_PLAYLIST_SONGS);
+
+  networkremote::Playlist pb_playlist;
+  pb_playlist.setPlaylistId(playlist_id);
+  networkremote::ResponsePlaylistSongs pb_response_playlist_songs;
+  pb_response_playlist_songs.setRequestedPlaylist(pb_playlist);
+
+  const SongList songs = playlist->GetAllSongs();
+  QList<networkremote::SongMetadata> pb_song_metadatas;
+  pb_song_metadatas.reserve(songs.count());
+  for (const Song &song : songs) {
+    pb_song_metadatas << PbSongMetadataFromSong(songs.indexOf(song), song);
+  }
+
+  pb_response_playlist_songs.setSongs(pb_song_metadatas);
+  msg.setResponsePlaylistSongs(pb_response_playlist_songs);
+
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::PlaylistChanged(Playlist *playlist) {
+  SendPlaylistSongs(playlist->id());
+}
+
+void OutgoingDataCreator::StateChanged(const EngineBase::State state) {
+
+  if (state == last_state_) {
+    return;
+  }
+  last_state_ = state;
+
+  networkremote::Message msg;
+
+  switch (state) {
+    case EngineBase::State::Playing:
+      msg.setType(networkremote::MsgTypeGadget::MsgType::PLAY);
+      track_position_timer_->start(1s);
+      break;
+    case EngineBase::State::Paused:
+      msg.setType(networkremote::MsgTypeGadget::MsgType::PAUSE);
+      track_position_timer_->stop();
+      break;
+    case EngineBase::State::Empty:
+      msg.setType(networkremote::MsgTypeGadget::MsgType::STOP);  // Empty is called when player stopped
+      track_position_timer_->stop();
+      break;
+    default:
+      msg.setType(networkremote::MsgTypeGadget::MsgType::STOP);
+      track_position_timer_->stop();
+      break;
+  };
+
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::SendRepeatMode(const PlaylistSequence::RepeatMode mode) {
+
+  networkremote::Repeat repeat;
+
+  switch (mode) {
+    case PlaylistSequence::RepeatMode::Off:
+      repeat.setRepeatMode(networkremote::RepeatModeGadget::RepeatMode::RepeatMode_Off);
+      break;
+    case PlaylistSequence::RepeatMode::Track:
+      repeat.setRepeatMode(networkremote::RepeatModeGadget::RepeatMode::RepeatMode_Track);
+      break;
+    case PlaylistSequence::RepeatMode::Album:
+      repeat.setRepeatMode(networkremote::RepeatModeGadget::RepeatMode::RepeatMode_Album);
+      break;
+    case PlaylistSequence::RepeatMode::Playlist:
+      repeat.setRepeatMode(networkremote::RepeatModeGadget::RepeatMode::RepeatMode_Playlist);
+      break;
+    case PlaylistSequence::RepeatMode::OneByOne:
+      repeat.setRepeatMode(networkremote::RepeatModeGadget::RepeatMode::RepeatMode_OneByOne);
+      break;
+    case PlaylistSequence::RepeatMode::Intro:
+      repeat.setRepeatMode(networkremote::RepeatModeGadget::RepeatMode::RepeatMode_Intro);
+      break;
+  }
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::REPEAT);
+  msg.setRepeat(repeat);
+
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::SendShuffleMode(const PlaylistSequence::ShuffleMode mode) {
+
+  networkremote::Shuffle shuffle;
+
+  switch (mode) {
+    case PlaylistSequence::ShuffleMode::Off:
+      shuffle.setShuffleMode(networkremote::ShuffleModeGadget::ShuffleMode::ShuffleMode_Off);
+      break;
+    case PlaylistSequence::ShuffleMode::All:
+      shuffle.setShuffleMode(networkremote::ShuffleModeGadget::ShuffleMode::ShuffleMode_All);
+      break;
+    case PlaylistSequence::ShuffleMode::InsideAlbum:
+      shuffle.setShuffleMode(networkremote::ShuffleModeGadget::ShuffleMode::ShuffleMode_InsideAlbum);
+      break;
+    case PlaylistSequence::ShuffleMode::Albums:
+      shuffle.setShuffleMode(networkremote::ShuffleModeGadget::ShuffleMode::ShuffleMode_Albums);
+      break;
+  }
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::SHUFFLE);
+  msg.setShuffle(shuffle);
+
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::UpdateTrackPosition() {
+
+  const qint64 position_nanosec = player_->engine()->position_nanosec();
+  int position = static_cast<int>(std::floor(static_cast<double>(position_nanosec) / kNsecPerSec + 0.5));
+
+  if (position_nanosec > current_song_.length_nanosec()) {
+    position = last_track_position_;
+  }
+
+  last_track_position_ = position;
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::UPDATE_TRACK_POSITION);
+  networkremote::ResponseUpdateTrackPosition reponse_update_track_position;
+  reponse_update_track_position.setPosition(position);
+  msg.setResponseUpdateTrackPosition(reponse_update_track_position);
+
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::DisconnectAllClients() {
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::DISCONNECT);
+  networkremote::ResponseDisconnect reponse_disconnect;
+  reponse_disconnect.setReasonDisconnect(networkremote::ReasonDisconnectGadget::ReasonDisconnect::Server_Shutdown);
+  msg.setResponseDisconnect(reponse_disconnect);
+  SendDataToClients(&msg);
+
+}
+
+void OutgoingDataCreator::SendCollection(NetworkRemoteClient *client) {
+
+  const QString temp_database_filename = QStandardPaths::writableLocation(QStandardPaths::TempLocation) + u'/' + Utilities::GetRandomStringWithChars(20);
+
+  Database::AttachedDatabase adb(temp_database_filename, ""_L1, true);
+  QSqlDatabase db(database_->Connect());
+
+  database_->AttachDatabaseOnDbConnection(u"songs_export"_s, adb, db);
+
+  SqlQuery q(db);
+  q.prepare(u"CREATE TABLE songs_export.songs AS SELECT * FROM songs WHERE unavailable = 0"_s);
+
+  if (!q.exec()) {
+    database_->ReportErrors(q);
+    return;
+  }
+
+  database_->DetachDatabase(u"songs_export"_s);
+
+  QFile file(temp_database_filename);
+  const QByteArray sha1 = Utilities::Sha1File(file).toHex();
+  qLog(Debug) << "Collection SHA1" << sha1;
+
+  if (!file.open(QIODevice::ReadOnly)) {
+    qLog(Error) << "Could not open file" << temp_database_filename;
+  }
+
+  const int chunk_count = qRound((file.size() / kFileChunkSize) + 0.5);
+  int chunk_number = 0;
+  while (!file.atEnd()) {
+    ++chunk_number;
+    const QByteArray data = file.read(kFileChunkSize);
+    networkremote::ResponseCollectionChunk chunk;
+    chunk.setChunkNumber(chunk_number);
+    chunk.setChunkCount(chunk_count);
+    chunk.setSize(file.size());
+    chunk.setData(data);
+    chunk.setFileHash(sha1);
+    networkremote::Message msg;
+    msg.setType(networkremote::MsgTypeGadget::MsgType::COLLECTION_CHUNK);
+    msg.setResponseCollectionChunk(chunk);
+    client->SendData(&msg);
+  }
+
+  file.remove();
+  file.close();
+
+}
+
+void OutgoingDataCreator::SendListFiles(QString relative_path, NetworkRemoteClient *client) {
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::LIST_FILES);
+  networkremote::ResponseListFiles files;
+
+  if (files_root_folder_.isEmpty()) {
+    files.setError(networkremote::ResponseListFiles::Error::ROOT_DIR_NOT_SET);
+    SendDataToClients(&msg);
+    return;
+  }
+
+  QDir root_dir(files_root_folder_);
+  if (!root_dir.exists()) {
+    files.setError(networkremote::ResponseListFiles::Error::ROOT_DIR_NOT_SET);
+  }
+  else if (relative_path.startsWith(".."_L1) || relative_path.startsWith("./.."_L1)) {
+    files.setError(networkremote::ResponseListFiles::Error::DIR_NOT_ACCESSIBLE);
+  }
+  else {
+    if (relative_path.startsWith("/"_L1)) relative_path.remove(0, 1);
+
+    QFileInfo fi_folder(root_dir, relative_path);
+    if (!fi_folder.exists()) {
+      files.setError(networkremote::ResponseListFiles::Error::DIR_NOT_EXIST);
+    }
+    else if (!fi_folder.isDir()) {
+      files.setError(networkremote::ResponseListFiles::Error::DIR_NOT_EXIST);
+    }
+    else if (root_dir.relativeFilePath(fi_folder.absoluteFilePath()).startsWith("../"_L1)) {
+      files.setError(networkremote::ResponseListFiles::Error::DIR_NOT_ACCESSIBLE);
+    }
+    else {
+      files.setRelativePath(root_dir.relativeFilePath(fi_folder.absoluteFilePath()));
+      QDir dir(fi_folder.absoluteFilePath());
+      dir.setFilter(QDir::NoDotAndDotDot | QDir::AllEntries);
+      dir.setSorting(QDir::Name | QDir::DirsFirst);
+
+      const QList<QFileInfo> fis = dir.entryInfoList();
+      for (const QFileInfo &fi : fis) {
+        if (fi.isDir() || files_music_extensions_.contains(fi.suffix())) {
+          networkremote::FileMetadata pb_file;// = files->addFiles();
+          pb_file.setIsDir(fi.isDir());
+          pb_file.setFilename(fi.fileName());
+        }
+      }
+    }
+  }
+
+  msg.setResponseListFiles(files);
+
+  client->SendData(&msg);
+
+}

src/networkremote/outgoingdatacreator.h

@@ -0,0 +1,120 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2012, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef OUTGOINGDATACREATOR_H
+#define OUTGOINGDATACREATOR_H
+
+#include <QObject>
+#include <QList>
+#include <QMap>
+#include <QQueue>
+#include <QString>
+#include <QStringList>
+#include <QImage>
+#include <QTcpSocket>
+#include <QTimer>
+
+#include "includes/shared_ptr.h"
+#include "engine/enginebase.h"
+#include "playlist/playlistsequence.h"
+#include "networkremotemessages.qpb.h"
+#include "covermanager/albumcoverloaderresult.h"
+
+class Database;
+class Player;
+class PlaylistManager;
+class PlaylistBackend;
+class Playlist;
+class NetworkRemoteClient;
+
+class OutgoingDataCreator : public QObject {
+  Q_OBJECT
+
+ public:
+  explicit OutgoingDataCreator(const SharedPtr<Database> database,
+                               const SharedPtr<Player> player,
+                               const SharedPtr<PlaylistManager> playlist_manager,
+                               const SharedPtr<PlaylistBackend> playlist_backend,
+                               QObject *parent = nullptr);
+
+  ~OutgoingDataCreator();
+
+  void SetClients(QList<NetworkRemoteClient*> *clients);
+  void SetRemoteRootFiles(const QString &files_root_folder) {
+    files_root_folder_ = files_root_folder;
+  }
+  void SetMusicExtensions(const QStringList &files_music_extensions) {
+    files_music_extensions_ = files_music_extensions;
+  }
+  void SetAllowDownloads(bool allow_downloads) {
+    allow_downloads_ = allow_downloads;
+  }
+
+  static networkremote::SongMetadata PbSongMetadataFromSong(const int index, const Song &song, const QImage &image_cover_art = QImage());
+
+ public Q_SLOTS:
+  void SendInfo();
+  void SendKeepAlive();
+  void SendAllPlaylists();
+  void SendAllActivePlaylists();
+  void SendFirstData(const bool send_playlist_songs);
+  void SendPlaylistSongs(const int id);
+  void PlaylistChanged(Playlist *playlist);
+  void VolumeChanged(const uint volume);
+  void PlaylistAdded(const int id, const QString &name, bool favorite);
+  void PlaylistDeleted(const int id);
+  void PlaylistClosed(const int id);
+  void PlaylistRenamed(const int id, const QString &new_name);
+  void ActiveChanged(Playlist *playlist);
+  void CurrentSongChanged(const Song &song, const AlbumCoverLoaderResult &result);
+  void SendSongMetadata();
+  void StateChanged(const EngineBase::State state);
+  void SendRepeatMode(const PlaylistSequence::RepeatMode mode);
+  void SendShuffleMode(const PlaylistSequence::ShuffleMode mode);
+  void UpdateTrackPosition();
+  void DisconnectAllClients();
+  void SendCollection(NetworkRemoteClient *client);
+  void SendListFiles(QString relative_path, NetworkRemoteClient *client);
+
+ private:
+  void SendDataToClients(networkremote::Message *msg);
+  networkremote::EngineStateGadget::EngineState GetEngineState();
+
+ private:
+  const SharedPtr<Database> database_;
+  const SharedPtr<Player> player_;
+  const SharedPtr<PlaylistManager> playlist_manager_;
+  const SharedPtr<PlaylistBackend> playlist_backend_;
+  QList<NetworkRemoteClient*> *clients_;
+  Song current_song_;
+  AlbumCoverLoaderResult albumcoverloader_result_;
+  QImage current_image_;
+  EngineBase::State last_state_;
+  QTimer *keep_alive_timer_;
+  QTimer *track_position_timer_;
+  int keep_alive_timeout_;
+  int last_track_position_;
+  QString files_root_folder_;
+  QStringList files_music_extensions_;
+  bool allow_downloads_;
+};
+
+#endif  // OUTGOINGDATACREATOR_H

src/networkremote/songsender.cpp

@@ -0,0 +1,442 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2012, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "songsender.h"
+
+#include <QImage>
+#include <QDir>
+#include <QFile>
+#include <QFileInfo>
+#include <QSettings>
+
+#include "includes/shared_ptr.h"
+#include "constants/networkremotesettingsconstants.h"
+#include "constants/networkremoteconstants.h"
+#include "core/logging.h"
+#include "core/player.h"
+#include "collection/collectionbackend.h"
+#include "playlist/playlistmanager.h"
+#include "playlist/playlist.h"
+#include "networkremote.h"
+#include "outgoingdatacreator.h"
+#include "networkremoteclient.h"
+#include "utilities/randutils.h"
+#include "utilities/cryptutils.h"
+
+using namespace Qt::Literals::StringLiterals;
+using namespace NetworkRemoteSettingsConstants;
+using namespace NetworkRemoteConstants;
+
+SongSender::SongSender(const SharedPtr<Player> player,
+                       const SharedPtr<CollectionBackend> collection_backend,
+                       const SharedPtr<PlaylistManager> playlist_manager,
+                       NetworkRemoteClient *client,
+                       QObject *parent)
+    : QObject(parent),
+      player_(player),
+      collection_backend_(collection_backend),
+      playlist_manager_(playlist_manager),
+      client_(client),
+      transcoder_(new Transcoder(this, QLatin1String(kTranscoderSettingPostfix))) {
+
+  QSettings s;
+  s.beginGroup(kSettingsGroup);
+
+  transcode_lossless_files_ = s.value("convert_lossless", false).toBool();
+
+  // Load preset
+  QString last_output_format = s.value("last_output_format", u"audio/x-vorbis"_s).toString();
+  QList<TranscoderPreset> presets = transcoder_->GetAllPresets();
+  for (int i = 0; i < presets.count(); ++i) {
+    if (last_output_format == presets.at(i).codec_mimetype_) {
+      transcoder_preset_ = presets.at(i);
+      break;
+    }
+  }
+
+  qLog(Debug) << "Transcoder preset" << transcoder_preset_.codec_mimetype_;
+
+  QObject::connect(transcoder_, &Transcoder::JobComplete, this, &SongSender::TranscodeJobComplete);
+  QObject::connect(transcoder_, &Transcoder::AllJobsComplete, this, &SongSender::StartTransfer);
+
+  total_transcode_ = 0;
+
+}
+
+SongSender::~SongSender() {
+
+  QObject::disconnect(transcoder_, &Transcoder::JobComplete, this, &SongSender::TranscodeJobComplete);
+  QObject::disconnect(transcoder_, &Transcoder::AllJobsComplete, this, &SongSender::StartTransfer);
+
+  transcoder_->Cancel();
+
+}
+
+void SongSender::SendSongs(const networkremote::RequestDownloadSongs &request) {
+
+  Song current_song;
+  if (player_->GetCurrentItem()) {
+    current_song = player_->GetCurrentItem()->Metadata();
+  }
+
+  switch (request.downloadItem()) {
+    case networkremote::DownloadItemGadget::DownloadItem::CurrentItem:{
+      if (current_song.is_valid()) {
+        const DownloadItem item(current_song, 1, 1);
+        download_queue_.append(item);
+      }
+      break;
+    }
+    case networkremote::DownloadItemGadget::DownloadItem::ItemAlbum:
+      if (current_song.is_valid()) {
+        SendAlbum(current_song);
+      }
+      break;
+    case networkremote::DownloadItemGadget::DownloadItem::APlaylist:
+      SendPlaylist(request);
+      break;
+    case networkremote::DownloadItemGadget::DownloadItem::Urls:
+      SendUrls(request);
+      break;
+    default:
+      break;
+  }
+
+  if (transcode_lossless_files_) {
+    TranscodeLosslessFiles();
+  }
+  else {
+    StartTransfer();
+  }
+
+}
+
+void SongSender::TranscodeLosslessFiles() {
+
+  for (const DownloadItem &item : std::as_const(download_queue_)) {
+    // Check only lossless files
+    if (!item.song_.IsFileLossless()) continue;
+
+    // Add the file to the transcoder
+    const QString local_file = item.song_.url().toLocalFile();
+
+    qLog(Debug) << "Transcoding" << local_file;
+
+    transcoder_->AddJob(local_file, transcoder_preset_, Utilities::GetRandomStringWithCharsAndNumbers(20));
+
+    total_transcode_++;
+  }
+
+  if (total_transcode_ > 0) {
+    transcoder_->Start();
+    SendTranscoderStatus();
+  }
+  else {
+    StartTransfer();
+  }
+
+}
+
+void SongSender::TranscodeJobComplete(const QString &input, const QString &output, const bool success) {
+
+  qLog(Debug) << input << "transcoded to" << output << success;
+
+  // If it wasn't successful send original file
+  if (success) {
+    transcoder_map_.insert(input, output);
+  }
+
+  SendTranscoderStatus();
+
+}
+
+void SongSender::SendTranscoderStatus() {
+
+  // Send a message to the remote that we are converting files
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::TRANSCODING_FILES);
+
+  networkremote::ResponseTranscoderStatus status = msg.responseTranscoderStatus();
+  status.setProcessed(static_cast<int>(transcoder_map_.count()));
+  status.setTotal(total_transcode_);
+
+  client_->SendData(&msg);
+
+}
+
+void SongSender::StartTransfer() {
+
+  total_transcode_ = 0;
+
+  // Send total file size & file count
+  SendTotalFileSize();
+
+  // Send first file
+  OfferNextSong();
+
+}
+
+void SongSender::SendTotalFileSize() {
+
+  networkremote::Message msg;
+  msg.setType(networkremote::MsgTypeGadget::MsgType::DOWNLOAD_TOTAL_SIZE);
+
+  networkremote::ResponseDownloadTotalSize response = msg.responseDownloadTotalSize();
+
+  response.setFileCount(download_queue_.size());
+
+  qint64 total = 0;
+  for (const DownloadItem &item : std::as_const(download_queue_)) {
+    QString local_file = item.song_.url().toLocalFile();
+    const bool is_transcoded = transcoder_map_.contains(local_file);
+
+    if (is_transcoded) {
+      local_file = transcoder_map_.value(local_file);
+    }
+
+    total += QFileInfo(local_file).size();
+
+  }
+
+  response.setTotalSize(total);
+
+  client_->SendData(&msg);
+
+}
+
+void SongSender::OfferNextSong() {
+
+  networkremote::Message msg;
+
+  if (download_queue_.isEmpty()) {
+    msg.setType(networkremote::MsgTypeGadget::MsgType::DOWNLOAD_QUEUE_EMPTY);
+  }
+  else {
+    // Get the item and send the single song
+    const DownloadItem item = download_queue_.head();
+
+    msg.setType(networkremote::MsgTypeGadget::MsgType::SONG_OFFER_FILE_CHUNK);
+    networkremote::ResponseSongFileChunk chunk = msg.responseSongFileChunk();
+
+    // Open the file
+    QFile file(item.song_.url().toLocalFile());
+
+    // Song offer is chunk no 0
+    chunk.setChunkCount(0);
+    chunk.setChunkNumber(0);
+    chunk.setFileCount(item.song_count_);
+    chunk.setFileNumber(item.song_number_);
+    chunk.setSize(file.size());
+    chunk.setSongMetadata(OutgoingDataCreator::PbSongMetadataFromSong(-1, item.song_));
+    msg.setResponseSongFileChunk(chunk);
+  }
+
+  client_->SendData(&msg);
+
+}
+
+void SongSender::ResponseSongOffer(const bool accepted) {
+
+  if (download_queue_.isEmpty()) return;
+
+  // Get the item and send the single song
+  DownloadItem item = download_queue_.dequeue();
+  if (accepted) SendSingleSong(item);
+
+  // And offer the next song
+  OfferNextSong();
+
+}
+
+void SongSender::SendSingleSong(const DownloadItem &download_item) {
+
+  if (!download_item.song_.url().isLocalFile()) return;
+
+  QString local_file = download_item.song_.url().toLocalFile();
+  bool is_transcoded = transcoder_map_.contains(local_file);
+
+  if (is_transcoded) {
+    local_file = transcoder_map_.take(local_file);
+  }
+
+  // Open the file
+  QFile file(local_file);
+
+  // Get sha1 for file
+  QByteArray sha1 = Utilities::Sha1File(file).toHex();
+  qLog(Debug) << "sha1 for file" << local_file << "=" << sha1;
+
+  file.open(QIODevice::ReadOnly);
+
+  QByteArray data;
+  networkremote::Message msg;
+  networkremote::ResponseSongFileChunk chunk = msg.responseSongFileChunk();
+  msg.setType(networkremote::MsgTypeGadget::MsgType::SONG_OFFER_FILE_CHUNK);
+
+  // Calculate the number of chunks
+  int chunk_count = qRound((static_cast<quint32>(file.size()) / kFileChunkSize) + 0.5);
+  int chunk_number = 1;
+
+  while (!file.atEnd()) {
+    // Read file chunk
+    data = file.read(kFileChunkSize);
+
+    // Set chunk data
+    chunk.setChunkCount(chunk_count);
+    chunk.setChunkNumber(chunk_number);
+    chunk.setFileCount(download_item.song_count_);
+    chunk.setFileNumber(download_item.song_number_);
+    chunk.setSize(file.size());
+    chunk.setData(data);
+    chunk.setFileHash(sha1);
+
+    // On the first chunk send the metadata, so the client knows what file it receives.
+    if (chunk_number == 1) {
+      const int i = playlist_manager_->active()->current_row();
+      networkremote::SongMetadata song_metadata = OutgoingDataCreator::PbSongMetadataFromSong(i, download_item.song_);
+
+      // If the file was transcoded, we have to change the filename and filesize
+      if (is_transcoded) {
+        song_metadata.setFileSize(file.size());
+        QString basefilename = download_item.song_.basefilename();
+        QFileInfo info(basefilename);
+        basefilename.replace(u'.' + info.suffix(), u'.' + transcoder_preset_.extension_);
+        song_metadata.setFilename(basefilename);
+      }
+    }
+
+    // Send data directly to the client
+    client_->SendData(&msg);
+
+    // Clear working data
+    chunk = networkremote::ResponseSongFileChunk();
+    data.clear();
+
+    chunk_number++;
+  }
+
+  // If the file was transcoded, delete the temporary one
+  if (is_transcoded) {
+    file.remove();
+  }
+  else {
+    file.close();
+  }
+
+}
+
+void SongSender::SendAlbum(const Song &album_song) {
+
+  if (!album_song.url().isLocalFile()) return;
+
+  const SongList songs = collection_backend_->GetSongsByAlbum(album_song.album());
+
+  for (const Song &song : songs) {
+    const DownloadItem item(song, static_cast<int>(songs.indexOf(song)) + 1, static_cast<int>(songs.size()));
+    download_queue_.append(item);
+  }
+
+}
+
+void SongSender::SendPlaylist(const networkremote::RequestDownloadSongs &request) {
+
+  const int playlist_id = request.playlistId();
+  Playlist *playlist = playlist_manager_->playlist(playlist_id);
+  if (!playlist) {
+    qLog(Info) << "Could not find playlist with id = " << playlist_id;
+    return;
+  }
+  const SongList song_list = playlist->GetAllSongs();
+
+  QList<int> requested_ids;
+  requested_ids.reserve(request.songsIds().count());
+  for (auto song_id : request.songsIds()) {
+    requested_ids << song_id;
+  }
+
+  // Count the local songs
+  int count = 0;
+  for (const Song &song : song_list) {
+    if (song.url().isLocalFile() && (requested_ids.isEmpty() || requested_ids.contains(song.id()))) {
+      ++count;
+    }
+  }
+
+  for (const Song &song : song_list) {
+    if (song.url().isLocalFile() && (requested_ids.isEmpty() || requested_ids.contains(song.id()))) {
+      DownloadItem item(song, static_cast<int>(song_list.indexOf(song)) + 1, count);
+      download_queue_.append(item);
+    }
+  }
+
+}
+
+void SongSender::SendUrls(const networkremote::RequestDownloadSongs &request) {
+
+  SongList songs;
+
+  // First gather all valid songs
+  if (!request.relativePath().isEmpty()) {
+    // Security checks, cf OutgoingDataCreator::SendListFiles
+    const QString &files_root_folder = client_->files_root_folder();
+    if (files_root_folder.isEmpty()) return;
+    QDir root_dir(files_root_folder);
+    QString relative_path = request.relativePath();
+    if (!root_dir.exists() || relative_path.startsWith(".."_L1) || relative_path.startsWith("./.."_L1))
+      return;
+
+    if (relative_path.startsWith(u'/')) relative_path.remove(0, 1);
+
+    QFileInfo fi_folder(root_dir, relative_path);
+    if (!fi_folder.exists() || !fi_folder.isDir() || root_dir.relativeFilePath(fi_folder.absoluteFilePath()).startsWith(u"../"_s)) {
+      return;
+    }
+
+    QDir dir(fi_folder.absoluteFilePath());
+    const QStringList &files_music_extensions = client_->files_music_extensions();
+    for (const QString &s : request.urls()) {
+      QFileInfo fi(dir, s);
+      if (fi.exists() && fi.isFile() && files_music_extensions.contains(fi.suffix())) {
+        Song song;
+        song.set_basefilename(fi.fileName());
+        song.set_filesize(fi.size());
+        song.set_url(QUrl::fromLocalFile(fi.absoluteFilePath()));
+        song.set_valid(true);
+        songs.append(song);
+      }
+    }
+  }
+  else {
+    for (const QString &url_str : request.urls()) {
+      const QUrl url(url_str);
+      Song song = collection_backend_->GetSongByUrl(url);
+      if (song.is_valid() && song.url().isLocalFile()) {
+        songs.append(song);
+      }
+    }
+  }
+
+  for (const Song &song : songs) {
+    DownloadItem item(song, static_cast<int>(songs.indexOf(song)) + 1, static_cast<int>(songs.count()));
+    download_queue_.append(item);
+  }
+
+}

src/networkremote/songsender.h

@@ -0,0 +1,96 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2012, Andreas Muttscheller <asfa194@gmail.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef SONGSENDER_H
+#define SONGSENDER_H
+
+#include <QObject>
+#include <QMap>
+#include <QQueue>
+#include <QString>
+#include <QUrl>
+
+#include "includes/shared_ptr.h"
+#include "core/song.h"
+#include "networkremotemessages.qpb.h"
+#include "transcoder/transcoder.h"
+
+class Player;
+class CollectionBackend;
+class PlaylistManager;
+class NetworkRemoteClient;
+class Transcoder;
+
+class DownloadItem {
+ public:
+  explicit DownloadItem(const Song &song, const int song_number, const int song_count)
+      : song_(song), song_number_(song_number), song_count_(song_count) {}
+
+  Song song_;
+  int song_number_;
+  int song_count_;
+};
+
+class SongSender : public QObject {
+  Q_OBJECT
+
+ public:
+  explicit SongSender(const SharedPtr<Player> player,
+                      const SharedPtr<CollectionBackend> collection_backend,
+                      const SharedPtr<PlaylistManager> playlist_manager,
+                      NetworkRemoteClient *client,
+                      QObject *parent = nullptr);
+
+  ~SongSender();
+
+ public Q_SLOTS:
+  void SendSongs(const networkremote::RequestDownloadSongs &request);
+  void ResponseSongOffer(bool accepted);
+
+ private Q_SLOTS:
+  void TranscodeJobComplete(const QString &input, const QString &output, const bool success);
+  void StartTransfer();
+
+ private:
+  const SharedPtr<Player> player_;
+  const SharedPtr<CollectionBackend> collection_backend_;
+  const SharedPtr<PlaylistManager> playlist_manager_;
+  NetworkRemoteClient *client_;
+
+  TranscoderPreset transcoder_preset_;
+  Transcoder *transcoder_;
+  bool transcode_lossless_files_;
+
+  QQueue<DownloadItem> download_queue_;
+  QMap<QString, QString> transcoder_map_;
+  int total_transcode_;
+
+  void SendSingleSong(const DownloadItem &download_item);
+  void SendAlbum(const Song &song);
+  void SendPlaylist(const networkremote::RequestDownloadSongs &request);
+  void SendUrls(const networkremote::RequestDownloadSongs &request);
+  void OfferNextSong();
+  void SendTotalFileSize();
+  void TranscodeLosslessFiles();
+  void SendTranscoderStatus();
+};
+
+#endif  // SONGSENDER_H

src/playlist/playlistmanager.cpp

@@ -57,6 +57,7 @@
 #include "playlistview.h"
 #include "playlistsaveoptionsdialog.h"
 #include "playlistparsers/playlistparser.h"
+#include "queue/queue.h"
 #include "dialogs/saveplaylistsdialog.h"
 
 using namespace Qt::Literals::StringLiterals;
@@ -185,9 +186,9 @@ Playlist *PlaylistManager::AddPlaylist(const int id, const QString &name, const
 
 }
 
-void PlaylistManager::New(const QString &name, const SongList &songs, const QString &special_type) {
+int PlaylistManager::New(const QString &name, const SongList &songs, const QString &special_type) {
 
-  if (name.isNull()) return;
+  if (name.isNull()) return -1;
 
   int id = playlist_backend_->CreatePlaylist(name, special_type);
 
@@ -203,6 +204,8 @@ void PlaylistManager::New(const QString &name, const SongList &songs, const QStr
     Rename(id, QStringLiteral("%1 %2").arg(name).arg(id));
   }
 
+  return id;
+
 }
 
 void PlaylistManager::Load(const QString &filename) {
@@ -614,3 +617,22 @@ void PlaylistManager::SaveAllPlaylists() {
   }
 
 }
+
+void PlaylistManager::Clear(const int id) {
+
+  if (playlists_.count() <= 1 || !playlists_.contains(id)) return;
+  playlists_[id].p->Clear();
+
+}
+
+void PlaylistManager::Enqueue(const int id, const int i) {
+
+  QModelIndexList dummyIndexList;
+
+  Q_ASSERT(playlists_.contains(id));
+
+  dummyIndexList.append(playlist(id)->index(i, 0));
+  playlist(id)->queue()->ToggleTracks(dummyIndexList);
+
+}
+

src/playlist/playlistmanager.h

@@ -95,7 +95,7 @@ class PlaylistManager : public PlaylistManagerInterface {
   PlaylistContainer *playlist_container() const override { return playlist_container_; }
 
  public Q_SLOTS:
-  void New(const QString &name, const SongList &songs = SongList(), const QString &special_type = QString()) override;
+  int New(const QString &name, const SongList &songs = SongList(), const QString &special_type = QString()) override;
   void Load(const QString &filename) override;
   void Save(const int id, const QString &playlist_name, const QString &filename, const PlaylistSettings::PathType path_type) override;
   // Display a file dialog to let user choose a file before saving the file
@@ -144,6 +144,9 @@ class PlaylistManager : public PlaylistManagerInterface {
   void SetActivePaused() override;
   void SetActiveStopped() override;
 
+  void Clear(const int id);
+  void Enqueue(const int id, const int i);
+
  private Q_SLOTS:
   void OneOfPlaylistsChanged();
   void UpdateSummaryText();

src/playlist/playlistmanagerinterface.h

@@ -77,7 +77,7 @@ class PlaylistManagerInterface : public QObject {
   virtual void PlaySmartPlaylist(PlaylistGeneratorPtr generator, const bool as_new, const bool clear) = 0;
 
  public Q_SLOTS:
-  virtual void New(const QString &name, const SongList &songs = SongList(), const QString &special_type = QString()) = 0;
+  virtual int New(const QString &name, const SongList &songs = SongList(), const QString &special_type = QString()) = 0;
   virtual void Load(const QString &filename) = 0;
   virtual void Save(const int id, const QString &playlist_name, const QString &filename, const PlaylistSettings::PathType path_type) = 0;
   virtual void Rename(const int id, const QString &new_name) = 0;

src/queue/queue.h

@@ -51,7 +51,6 @@ class Queue : public QAbstractProxyModel {
 
   // Modify the queue
   int TakeNext();
-  void ToggleTracks(const QModelIndexList &source_indexes);
   void InsertFirst(const QModelIndexList &source_indexes);
   void Clear();
   void Move(const QList<int> &proxy_rows, int pos);
@@ -79,6 +78,7 @@ class Queue : public QAbstractProxyModel {
 
  public Q_SLOTS:
   void UpdateSummaryText();
+  void ToggleTracks(const QModelIndexList &source_indexes);
 
  Q_SIGNALS:
   void TotalLengthChanged(const quint64 length);

src/scrobbler/lastfmimport.cpp

@@ -42,22 +42,15 @@
 #include "core/logging.h"
 #include "core/networkaccessmanager.h"
 #include "core/settings.h"
-#include "constants/scrobblersettings.h"
 
 #include "lastfmimport.h"
 
 #include "lastfmscrobbler.h"
 
 using namespace Qt::Literals::StringLiterals;
-using namespace ScrobblerSettings;
 
 namespace {
 constexpr int kRequestsDelay = 2000;
-constexpr int kMaxRetries = 5;
-constexpr int kInitialBackoffMs = 5000;
-constexpr int kMaxBackoffShift = 10;  // Maximum shift value to prevent overflow
-constexpr int kRetryHttpStatusCode1 = 500;  // Internal Server Error
-constexpr int kRetryHttpStatusCode2 = 503;  // Service Unavailable
 }
 
 LastFMImport::LastFMImport(const SharedPtr<NetworkAccessManager> network, QObject *parent)
@@ -108,17 +101,14 @@ void LastFMImport::ReloadSettings() {
   Settings s;
   s.beginGroup(LastFMScrobbler::kSettingsGroup);
   username_ = s.value("username").toString();
-  api_key_ = s.value(ScrobblerSettings::kApiKey).toString();
   s.endGroup();
 
 }
 
 QNetworkReply *LastFMImport::CreateRequest(const ParamList &request_params) {
 
-  const QString api_key = !api_key_.isEmpty() ? api_key_ : QLatin1String(LastFMScrobbler::kApiKey);
-
   ParamList params = ParamList()
-    << Param(u"api_key"_s, api_key)
+    << Param(u"api_key"_s, QLatin1String(LastFMScrobbler::kApiKey))
     << Param(u"user"_s, username_)
     << Param(u"lang"_s, QLocale().name().left(2).toLower())
     << Param(u"format"_s, u"json"_s)
@@ -244,11 +234,11 @@ void LastFMImport::SendGetRecentTracksRequest(GetRecentTracksRequest request) {
   }
 
   QNetworkReply *reply = CreateRequest(params);
-  QObject::connect(reply, &QNetworkReply::finished, this, [this, reply, request]() { GetRecentTracksRequestFinished(reply, request); });
+  QObject::connect(reply, &QNetworkReply::finished, this, [this, reply, request]() { GetRecentTracksRequestFinished(reply, request.page); });
 
 }
 
-void LastFMImport::GetRecentTracksRequestFinished(QNetworkReply *reply, GetRecentTracksRequest request) {
+void LastFMImport::GetRecentTracksRequestFinished(QNetworkReply *reply, const int page) {
 
   if (!replies_.contains(reply)) return;
   replies_.removeAll(reply);
@@ -257,21 +247,10 @@ void LastFMImport::GetRecentTracksRequestFinished(QNetworkReply *reply, GetRecen
 
   const JsonObjectResult json_object_result = ParseJsonObject(reply);
   if (!json_object_result.success()) {
-    if (ShouldRetryRequest(json_object_result) && request.retry_count < kMaxRetries) {
-      const int delay_ms = CalculateBackoffDelay(request.retry_count);
-      LogRetryAttempt(json_object_result.http_status_code, request.retry_count, delay_ms);
-      QTimer::singleShot(delay_ms, this, [this, request]() {
-        GetRecentTracksRequest retry_request(request.page, request.retry_count + 1);
-        SendGetRecentTracksRequest(retry_request);
-      });
-      return;
-    }
     Error(json_object_result.error_message);
     return;
   }
 
-  const int page = request.page;
-
   QJsonObject json_object = json_object_result.json_object;
   if (json_object.isEmpty()) {
     return;
@@ -411,11 +390,11 @@ void LastFMImport::SendGetTopTracksRequest(GetTopTracksRequest request) {
   }
 
   QNetworkReply *reply = CreateRequest(params);
-  QObject::connect(reply, &QNetworkReply::finished, this, [this, reply, request]() { GetTopTracksRequestFinished(reply, request); });
+  QObject::connect(reply, &QNetworkReply::finished, this, [this, reply, request]() { GetTopTracksRequestFinished(reply, request.page); });
 
 }
 
-void LastFMImport::GetTopTracksRequestFinished(QNetworkReply *reply, GetTopTracksRequest request) {
+void LastFMImport::GetTopTracksRequestFinished(QNetworkReply *reply, const int page) {
 
   if (!replies_.contains(reply)) return;
   replies_.removeAll(reply);
@@ -424,21 +403,10 @@ void LastFMImport::GetTopTracksRequestFinished(QNetworkReply *reply, GetTopTrack
 
   const JsonObjectResult json_object_result = ParseJsonObject(reply);
   if (!json_object_result.success()) {
-    if (ShouldRetryRequest(json_object_result) && request.retry_count < kMaxRetries) {
-      const int delay_ms = CalculateBackoffDelay(request.retry_count);
-      LogRetryAttempt(json_object_result.http_status_code, request.retry_count, delay_ms);
-      QTimer::singleShot(delay_ms, this, [this, request]() {
-        GetTopTracksRequest retry_request(request.page, request.retry_count + 1);
-        SendGetTopTracksRequest(retry_request);
-      });
-      return;
-    }
     Error(json_object_result.error_message);
     return;
   }
 
-  const int page = request.page;
-
   QJsonObject json_object = json_object_result.json_object;
   if (json_object.isEmpty()) {
     return;
@@ -548,23 +516,6 @@ void LastFMImport::GetTopTracksRequestFinished(QNetworkReply *reply, GetTopTrack
 
 }
 
-bool LastFMImport::ShouldRetryRequest(const JsonObjectResult &result) const {
-  return result.http_status_code == kRetryHttpStatusCode1 ||
-         result.http_status_code == kRetryHttpStatusCode2 ||
-         result.network_error == QNetworkReply::TemporaryNetworkFailureError;
-}
-
-void LastFMImport::LogRetryAttempt(const int http_status_code, const int retry_count, const int delay_ms) const {
-  qLog(Warning) << "Last.fm request failed with status" << http_status_code
-                << ", retrying in" << delay_ms << "ms (attempt"
-                << (retry_count + 1) << "of" << kMaxRetries << ")";
-}
-
-int LastFMImport::CalculateBackoffDelay(const int retry_count) const {
-  const int safe_shift = std::min(retry_count, kMaxBackoffShift);
-  return kInitialBackoffMs * (1 << safe_shift);
-}
-
 void LastFMImport::UpdateTotalCheck() {
 
   Q_EMIT UpdateTotal(lastplayed_total_, playcount_total_);

src/scrobbler/lastfmimport.h

@@ -60,14 +60,12 @@ class LastFMImport : public JsonBaseRequest {
   using ParamList = QList<Param>;
 
   struct GetRecentTracksRequest {
-    explicit GetRecentTracksRequest(const int _page, const int _retry_count = 0) : page(_page), retry_count(_retry_count) {}
+    explicit GetRecentTracksRequest(const int _page) : page(_page) {}
     int page;
-    int retry_count;
   };
   struct GetTopTracksRequest {
-    explicit GetTopTracksRequest(const int _page, const int _retry_count = 0) : page(_page), retry_count(_retry_count) {}
+    explicit GetTopTracksRequest(const int _page) : page(_page) {}
     int page;
-    int retry_count;
   };
 
  private:
@@ -80,10 +78,6 @@ class LastFMImport : public JsonBaseRequest {
   void SendGetRecentTracksRequest(GetRecentTracksRequest request);
   void SendGetTopTracksRequest(GetTopTracksRequest request);
 
-  bool ShouldRetryRequest(const JsonObjectResult &result) const;
-  int CalculateBackoffDelay(const int retry_count) const;
-  void LogRetryAttempt(const int http_status_code, const int retry_count, const int delay_ms) const;
-
   void Error(const QString &error, const QVariant &debug = QVariant()) override;
 
   void UpdateTotalCheck();
@@ -101,15 +95,14 @@ class LastFMImport : public JsonBaseRequest {
 
  private Q_SLOTS:
   void FlushRequests();
-  void GetRecentTracksRequestFinished(QNetworkReply *reply, GetRecentTracksRequest request);
-  void GetTopTracksRequestFinished(QNetworkReply *reply, GetTopTracksRequest request);
+  void GetRecentTracksRequestFinished(QNetworkReply *reply, const int page);
+  void GetTopTracksRequestFinished(QNetworkReply *reply, const int page);
 
  private:
   SharedPtr<NetworkAccessManager> network_;
   QTimer *timer_flush_requests_;
 
   QString username_;
-  QString api_key_;
   bool lastplayed_;
   bool playcount_;
   int playcount_total_;

src/scrobbler/lastfmscrobbler.cpp

@@ -113,7 +113,6 @@ void LastFMScrobbler::ReloadSettings() {
 
   s.beginGroup(kSettingsGroup);
   enabled_ = s.value(ScrobblerSettings::kEnabled, false).toBool();
-  api_key_ = s.value(ScrobblerSettings::kApiKey).toString();
   s.endGroup();
 
   s.beginGroup(ScrobblerSettings::kSettingsGroup);

src/scrobbler/lastfmscrobbler.h

@@ -64,7 +64,6 @@ class LastFMScrobbler : public ScrobblerService {
   bool subscriber() const { return subscriber_; }
   bool submitted() const override { return submitted_; }
   QString username() const { return username_; }
-  QString api_key() const { return api_key_; }
 
   void Authenticate();
   void UpdateNowPlaying(const Song &song) override;
@@ -140,7 +139,6 @@ class LastFMScrobbler : public ScrobblerService {
   bool subscriber_;
   QString username_;
   QString session_key_;
-  QString api_key_;
 
   bool submitted_;
   Song song_playing_;

src/settings/networkremotesettingspage.cpp

@@ -0,0 +1,157 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2010, David Sansome <me@davidsansome.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "networkremotesettingspage.h"
+
+#include <algorithm>
+
+#include <QString>
+#include <QUrl>
+#include <QFile>
+#include <QHostInfo>
+#include <QNetworkInterface>
+#include <QDesktopServices>
+#include <QSettings>
+#include <QRandomGenerator>
+
+#include "constants/networkremotesettingsconstants.h"
+#include "constants/networkremoteconstants.h"
+#include "core/iconloader.h"
+#include "networkremote/networkremote.h"
+#include "transcoder/transcoder.h"
+#include "transcoder/transcoderoptionsdialog.h"
+#include "settingsdialog.h"
+#include "ui_networkremotesettingspage.h"
+
+using namespace Qt::Literals::StringLiterals;
+using namespace NetworkRemoteSettingsConstants;
+using namespace NetworkRemoteConstants;
+
+namespace {
+
+static bool ComparePresetsByName(const TranscoderPreset &left, const TranscoderPreset &right) {
+  return left.name_ < right.name_;
+}
+
+}  // namespace
+
+NetworkRemoteSettingsPage::NetworkRemoteSettingsPage(SettingsDialog *dialog)
+    : SettingsPage(dialog),
+      ui_(new Ui_NetworkRemoteSettingsPage) {
+
+  ui_->setupUi(this);
+
+  setWindowIcon(IconLoader::Load(u"ipodtouchicon"_s));
+
+  QObject::connect(ui_->options, &QPushButton::clicked, this, &NetworkRemoteSettingsPage::Options);
+
+  QList<TranscoderPreset> presets = Transcoder::GetAllPresets();
+  std::sort(presets.begin(), presets.end(), ComparePresetsByName);
+  for (const TranscoderPreset &preset : std::as_const(presets)) {
+    ui_->format->addItem(QStringLiteral("%1 (.%2)").arg(preset.name_, preset.extension_), QVariant::fromValue(preset));
+  }
+
+}
+
+NetworkRemoteSettingsPage::~NetworkRemoteSettingsPage() { delete ui_; }
+
+void NetworkRemoteSettingsPage::Load() {
+
+  QSettings s;
+
+  s.beginGroup(kSettingsGroup);
+
+  ui_->enabled->setChecked(s.value(kEnabled).toBool());
+  ui_->spinbox_port->setValue(s.value(kPort, kDefaultServerPort).toInt());
+  ui_->checkbox_allow_public_access->setChecked(s.value(kAllowPublicAccess, false).toBool());
+
+  ui_->checkbox_use_auth_code->setChecked(s.value(kUseAuthCode, false).toBool());
+  ui_->spinbox_auth_code->setValue(s.value(kAuthCode, QRandomGenerator::global()->bounded(100000)).toInt());
+
+  ui_->allow_downloads->setChecked(s.value("allow_downloads", false).toBool());
+  ui_->convert_lossless->setChecked(s.value("convert_lossless", false).toBool());
+
+  QString last_output_format = s.value("last_output_format", u"audio/x-vorbis"_s).toString();
+  for (int i = 0; i < ui_->format->count(); ++i) {
+    if (last_output_format == ui_->format->itemData(i).value<TranscoderPreset>().codec_mimetype_) {
+      ui_->format->setCurrentIndex(i);
+      break;
+    }
+  }
+
+  ui_->files_root_folder->SetPath(s.value("files_root_folder").toString());
+  ui_->files_music_extensions->setText(s.value("files_music_extensions", kDefaultMusicExtensionsAllowedRemotely).toStringList().join(u','));
+
+  s.endGroup();
+
+  // Get local IP addresses
+  QString ip_addresses;
+  QList<QHostAddress> addresses = QNetworkInterface::allAddresses();
+  for (const QHostAddress &address : addresses) {
+    // TODO: Add IPv6 support to tinysvcmdns
+    if (address.protocol() == QAbstractSocket::IPv4Protocol && !address.isInSubnet(QHostAddress::parseSubnet(u"127.0.0.1/8"_s))) {
+      if (!ip_addresses.isEmpty()) {
+        ip_addresses.append(u", "_s);
+      }
+      ip_addresses.append(address.toString());
+    }
+  }
+  ui_->label_ip_address->setText(ip_addresses);
+
+}
+
+void NetworkRemoteSettingsPage::Save() {
+
+  QSettings s;
+
+  s.beginGroup(kSettingsGroup);
+  s.setValue(kEnabled, ui_->enabled->isChecked());
+  s.setValue(kPort, ui_->spinbox_port->value());
+  s.setValue(kAllowPublicAccess, ui_->checkbox_allow_public_access->isChecked());
+  s.setValue(kUseAuthCode, ui_->checkbox_use_auth_code->isChecked());
+  s.setValue(kAuthCode, ui_->spinbox_auth_code->value());
+
+  TranscoderPreset preset = ui_->format->itemData(ui_->format->currentIndex()).value<TranscoderPreset>();
+  s.setValue("last_output_format", preset.codec_mimetype_);
+
+  s.setValue(kFilesRootFolder, ui_->files_root_folder->Path());
+
+  QStringList files_music_extensions;
+  for (const QString &extension : ui_->files_music_extensions->text().split(u',')) {
+    QString ext = extension.trimmed();
+    if (ext.size() > 0 && ext.size() < 8)  // no empty string, less than 8 char
+      files_music_extensions << ext;
+  }
+  s.setValue("files_music_extensions", files_music_extensions);
+
+  s.endGroup();
+
+}
+
+void NetworkRemoteSettingsPage::Options() {
+
+  TranscoderPreset preset = ui_->format->itemData(ui_->format->currentIndex()).value<TranscoderPreset>();
+
+  TranscoderOptionsDialog dialog(preset.filetype_, this);
+  dialog.set_settings_postfix(QLatin1String(kTranscoderSettingPostfix));
+  dialog.exec();
+
+}

src/settings/networkremotesettingspage.h

@@ -0,0 +1,46 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2010, David Sansome <me@davidsansome.com>
+ * Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef NETWORKREMOTESETTINGSPAGE_H
+#define NETWORKREMOTESETTINGSPAGE_H
+
+#include "settingspage.h"
+
+class Ui_NetworkRemoteSettingsPage;
+
+class NetworkRemoteSettingsPage : public SettingsPage {
+  Q_OBJECT
+
+ public:
+  explicit NetworkRemoteSettingsPage(SettingsDialog *dialog);
+  ~NetworkRemoteSettingsPage();
+
+  void Load();
+  void Save();
+
+ private Q_SLOTS:
+  void Options();
+
+ private:
+  Ui_NetworkRemoteSettingsPage *ui_;
+};
+
+#endif  // NETWORKREMOTESETTINGSPAGE_H

src/settings/networkremotesettingspage.ui

@@ -0,0 +1,298 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>NetworkRemoteSettingsPage</class>
+ <widget class="QWidget" name="NetworkRemoteSettingsPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>421</width>
+    <height>664</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Network Remote</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
+    <widget class="QCheckBox" name="enabled">
+     <property name="text">
+      <string>Enabled</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="groupbox_use_remote_container">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+     <property name="title">
+      <string>Settings</string>
+     </property>
+     <layout class="QFormLayout" name="formLayout">
+      <property name="fieldGrowthPolicy">
+       <enum>QFormLayout::AllNonFixedFieldsGrow</enum>
+      </property>
+      <item row="0" column="0">
+       <widget class="QLabel" name="label_port">
+        <property name="minimumSize">
+         <size>
+          <width>171</width>
+          <height>0</height>
+         </size>
+        </property>
+        <property name="layoutDirection">
+         <enum>Qt::LeftToRight</enum>
+        </property>
+        <property name="text">
+         <string>Port</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QSpinBox" name="spinbox_port">
+        <property name="maximum">
+         <number>65535</number>
+        </property>
+        <property name="value">
+         <number>8080</number>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" colspan="2">
+       <widget class="QCheckBox" name="checkbox_allow_public_access">
+        <property name="toolTip">
+         <string>Only accept connections from clients within the ip ranges:
+10.x.x.x
+172.16.0.0 - 172.31.255.255
+192.168.x.x</string>
+        </property>
+        <property name="text">
+         <string>Allow public access</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QCheckBox" name="checkbox_use_auth_code">
+        <property name="toolTip">
+         <string>A client can connect only, if the correct code was entered.</string>
+        </property>
+        <property name="text">
+         <string>Require authentication code</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QSpinBox" name="spinbox_auth_code">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="suffix">
+         <string/>
+        </property>
+        <property name="maximum">
+         <number>99999</number>
+        </property>
+       </widget>
+      </item>
+      <item row="9" column="0">
+       <widget class="QLabel" name="label_ip_address_description">
+        <property name="toolTip">
+         <string>Enter this IP in the App to connect to Clementine.</string>
+        </property>
+        <property name="text">
+         <string>Your IP address:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="9" column="1">
+       <widget class="QLabel" name="label_ip_address">
+        <property name="text">
+         <string notr="true">127.0.0.1</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="0">
+       <widget class="QCheckBox" name="allow_downloads">
+        <property name="toolTip">
+         <string>Allow a client to download music from this computer.</string>
+        </property>
+        <property name="text">
+         <string>Allow downloads</string>
+        </property>
+       </widget>
+      </item>
+      <item row="7" column="0" colspan="2">
+       <widget class="QGroupBox" name="download_settings_container">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="title">
+         <string>Download settings</string>
+        </property>
+        <layout class="QVBoxLayout" name="verticalLayout_3">
+         <item>
+          <widget class="QCheckBox" name="convert_lossless">
+           <property name="toolTip">
+            <string>Convert lossless audiofiles before sending them to the remote.</string>
+           </property>
+           <property name="text">
+            <string>Convert lossless files</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QGroupBox" name="format_container">
+           <property name="enabled">
+            <bool>false</bool>
+           </property>
+           <property name="title">
+            <string>Audio format</string>
+           </property>
+           <layout class="QGridLayout" name="gridLayout">
+            <item row="0" column="1">
+             <widget class="QPushButton" name="options">
+              <property name="text">
+               <string>Options...</string>
+              </property>
+             </widget>
+            </item>
+            <item row="0" column="0">
+             <widget class="QComboBox" name="format"/>
+            </item>
+           </layout>
+          </widget>
+         </item>
+        </layout>
+       </widget>
+      </item>
+      <item row="5" column="0">
+       <widget class="QLabel" name="label_files_root_folder">
+        <property name="toolTip">
+         <string>Root folder that will be browsable from the network remote</string>
+        </property>
+        <property name="text">
+         <string>Files root folder</string>
+        </property>
+       </widget>
+      </item>
+      <item row="5" column="1">
+       <widget class="FileChooserWidget" name="files_root_folder" native="true">
+        <property name="minimumSize">
+         <size>
+          <width>100</width>
+          <height>0</height>
+         </size>
+        </property>
+       </widget>
+      </item>
+      <item row="6" column="1">
+       <widget class="QLineEdit" name="files_music_extensions"/>
+      </item>
+      <item row="6" column="0">
+       <widget class="QLabel" name="label_music_extensions">
+        <property name="toolTip">
+         <string>comma-separated list of the allowed extensions that will be visible from the network remote (ex: m3u,mp3,flac,ogg,wav)</string>
+        </property>
+        <property name="text">
+         <string>Music extensions remotely visible</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <spacer name="spacer_bottom">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>98</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>FileChooserWidget</class>
+   <extends>QWidget</extends>
+   <header location="global">widgets/filechooserwidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>checkbox_use_auth_code</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>spinbox_auth_code</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>137</x>
+     <y>124</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>351</x>
+     <y>125</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>enabled</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>groupbox_use_remote_container</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>59</x>
+     <y>22</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>57</x>
+     <y>43</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>allow_downloads</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>download_settings_container</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>196</x>
+     <y>160</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>117</x>
+     <y>205</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>convert_lossless</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>format_container</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>218</x>
+     <y>212</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>218</x>
+     <y>262</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/settings/scrobblersettingspage.cpp

@@ -106,7 +106,6 @@ void ScrobblerSettingsPage::Load() {
   ui_->checkbox_source_unknown->setChecked(scrobbler_->sources().contains(Song::Source::Unknown));
 
   ui_->checkbox_lastfm_enable->setChecked(lastfmscrobbler_->enabled());
-  ui_->lineedit_lastfm_api_key->setText(lastfmscrobbler_->api_key());
   LastFM_RefreshControls(lastfmscrobbler_->authenticated());
 
   ui_->checkbox_listenbrainz_enable->setChecked(listenbrainzscrobbler_->enabled());
@@ -153,7 +152,6 @@ void ScrobblerSettingsPage::Save() {
 
   s.beginGroup(LastFMScrobbler::kSettingsGroup);
   s.setValue(kEnabled, ui_->checkbox_lastfm_enable->isChecked());
-  s.setValue(kApiKey, ui_->lineedit_lastfm_api_key->text());
   s.endGroup();
 
   s.beginGroup(ListenBrainzScrobbler::kSettingsGroup);

src/settings/scrobblersettingspage.ui

@@ -234,43 +234,6 @@
         </property>
        </widget>
       </item>
-      <item>
-       <layout class="QHBoxLayout" name="layout_lastfm_api_key">
-        <item>
-         <widget class="QLabel" name="label_lastfm_api_key">
-          <property name="minimumSize">
-           <size>
-            <width>80</width>
-            <height>0</height>
-           </size>
-          </property>
-          <property name="text">
-           <string>API key:</string>
-          </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QLineEdit" name="lineedit_lastfm_api_key">
-          <property name="placeholderText">
-           <string>Optional - your own Last.fm API key</string>
-          </property>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <widget class="QLabel" name="label_lastfm_api_key_info">
-        <property name="text">
-         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-size:8pt;&quot;&gt;Using your own API key can help avoid rate limiting for large libraries. Get one at &lt;/span&gt;&lt;a href=&quot;https://www.last.fm/api/account/create&quot;&gt;&lt;span style=&quot; font-size:8pt; text-decoration: underline; color:#0000ff;&quot;&gt;https://www.last.fm/api/account/create&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-        </property>
-        <property name="wordWrap">
-         <bool>true</bool>
-        </property>
-        <property name="openExternalLinks">
-         <bool>true</bool>
-        </property>
-       </widget>
-      </item>
       <item>
        <widget class="LoginStateWidget" name="widget_lastfm_login_state" native="true"/>
       </item>
@@ -431,7 +394,6 @@
   <tabstop>checkbox_source_somafm</tabstop>
   <tabstop>checkbox_source_radioparadise</tabstop>
   <tabstop>checkbox_lastfm_enable</tabstop>
-  <tabstop>lineedit_lastfm_api_key</tabstop>
   <tabstop>button_lastfm_login</tabstop>
   <tabstop>checkbox_listenbrainz_enable</tabstop>
   <tabstop>lineedit_listenbrainz_user_token</tabstop>

src/settings/settingsdialog.cpp

@@ -90,6 +90,9 @@
 #  include "qobuz/qobuzservice.h"
 #  include "qobuzsettingspage.h"
 #endif
+#ifdef HAVE_NETWORKREMOTE
+#  include "networkremotesettingspage.h"
+#endif
 
 #include "ui_settingsdialog.h"
 
@@ -161,6 +164,10 @@ SettingsDialog::SettingsDialog(const SharedPtr<Player> player,
   AddPage(Page::Qobuz, new QobuzSettingsPage(this, streaming_services->Service<QobuzService>(), this), streaming);
 #endif
 
+#ifdef HAVE_NETWORKREMOTE
+  AddPage(Page::NetworkRemote, new NetworkRemoteSettingsPage(this));
+#endif
+
   // List box
   QObject::connect(ui_->list, &QTreeWidget::currentItemChanged, this, &SettingsDialog::CurrentItemChanged);
   ui_->list->setCurrentItem(pages_[Page::Behaviour].item_);

src/settings/settingsdialog.h

@@ -93,6 +93,7 @@ class SettingsDialog : public QDialog {
     Tidal,
     Qobuz,
     Spotify,
+    NetworkRemote
   };
 
   enum Role {

src/utilities/cryptutils.cpp

@@ -20,6 +20,8 @@
 #include <QByteArray>
 #include <QString>
 #include <QCryptographicHash>
+#include <QFile>
+#include <QIODevice>
 
 #include "cryptutils.h"
 
@@ -62,4 +64,17 @@ QByteArray HmacSha1(const QByteArray &key, const QByteArray &data) {
   return Hmac(key, data, QCryptographicHash::Sha1);
 }
 
+QByteArray Sha1File(QFile &file) {
+
+  file.open(QIODevice::ReadOnly);
+  QCryptographicHash hash(QCryptographicHash::Sha1);
+  while (!file.atEnd()) {
+    hash.addData(file.read(1000000));
+  }
+  file.close();
+
+  return hash.result();
+
+}
+
 }  // namespace Utilities

src/utilities/cryptutils.h

@@ -23,6 +23,7 @@
 #include <QByteArray>
 #include <QString>
 #include <QCryptographicHash>
+#include <QFile>
 
 namespace Utilities {
 
@@ -30,6 +31,7 @@ QByteArray Hmac(const QByteArray &key, const QByteArray &data, const QCryptograp
 QByteArray HmacMd5(const QByteArray &key, const QByteArray &data);
 QByteArray HmacSha256(const QByteArray &key, const QByteArray &data);
 QByteArray HmacSha1(const QByteArray &key, const QByteArray &data);
+QByteArray Sha1File(QFile &file);
 
 }  // namespace Utilities
 

src/widgets/filechooserwidget.cpp

@@ -0,0 +1,116 @@
+#include <QFileDialog>
+#include <QFileInfo>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QLineEdit>
+#include <QPushButton>
+
+#include "filechooserwidget.h"
+
+using namespace Qt::Literals::StringLiterals;
+
+FileChooserWidget::FileChooserWidget(QWidget *parent)
+    : QWidget(parent),
+      layout_(new QHBoxLayout(this)),
+      path_edit_(new QLineEdit(this)),
+      mode_(Mode::Directory) {
+
+  Init();
+
+}
+
+FileChooserWidget::FileChooserWidget(const Mode mode, const QString &initial_path, QWidget* parent)
+    : QWidget(parent),
+      layout_(new QHBoxLayout(this)),
+      path_edit_(new QLineEdit(this)),
+      mode_(mode) {
+
+  Init(initial_path);
+
+}
+
+FileChooserWidget::FileChooserWidget(const Mode mode, const QString &label, const QString &initial_path, QWidget* parent)
+    : QWidget(parent),
+      layout_(new QHBoxLayout(this)),
+      path_edit_(new QLineEdit(this)),
+      mode_(mode) {
+
+  layout_->addWidget(new QLabel(label, this));
+
+  Init(initial_path);
+
+}
+
+void FileChooserWidget::SetFileFilter(const QString &file_filter) {
+  file_filter_ = file_filter;
+}
+
+void FileChooserWidget::SetPath(const QString &path) {
+
+  QFileInfo fi(path);
+  if (fi.exists()) {
+    path_edit_->setText(path);
+    open_dir_path_ = fi.absolutePath();
+  }
+
+}
+
+QString FileChooserWidget::Path() const {
+
+  QString path(path_edit_->text());
+  QFileInfo fi(path);
+  if (!fi.exists()) return QString();
+  if (mode_ == Mode::File) {
+    if (!fi.isFile()) return QString();
+  }
+  else {
+    if (!fi.isDir()) return QString();
+  }
+
+  return path;
+
+}
+
+void FileChooserWidget::Init(const QString &initial_path) {
+
+  QFileInfo fi(initial_path);
+  if (fi.exists()) {
+    path_edit_->setText(initial_path);
+    open_dir_path_ = fi.absolutePath();
+  }
+  layout_->addWidget(path_edit_);
+
+  QPushButton* changePath = new QPushButton(QLatin1String("..."), this);
+  connect(changePath, &QAbstractButton::clicked, this, &FileChooserWidget::ChooseFile);
+  changePath->setFixedWidth(2 * changePath->fontMetrics().horizontalAdvance(" ... "_L1));
+
+  layout_->addWidget(changePath);
+  layout_->setContentsMargins(2, 0, 2, 0);
+
+  setFocusProxy(path_edit_);
+
+}
+
+void FileChooserWidget::ChooseFile() {
+
+  QString new_path;
+
+  if (mode_ == Mode::File) {
+    new_path = QFileDialog::getOpenFileName(this, tr("Select a file"), open_dir_path_, file_filter_);
+  }
+  else {
+    new_path = QFileDialog::getExistingDirectory(this, tr("Select a directory"), open_dir_path_);
+  }
+
+  if (!new_path.isEmpty()) {
+    QFileInfo fi(new_path);
+    open_dir_path_ = fi.absolutePath();
+    if (mode_ == Mode::File) {
+      path_edit_->setText(fi.absoluteFilePath());
+    }
+    else {
+      path_edit_->setText(fi.absoluteFilePath() + u"/"_s);
+    }
+  }
+
+}

src/widgets/filechooserwidget.h

@@ -0,0 +1,40 @@
+#ifndef FILECHOOSERWIDGET_H
+#define FILECHOOSERWIDGET_H
+
+#include <QWidget>
+
+class QLineEdit;
+class QHBoxLayout;
+
+class FileChooserWidget : public QWidget {
+  Q_OBJECT
+
+ public:
+  enum class Mode { File, Directory };
+
+ public:
+  explicit FileChooserWidget(QWidget *parent = nullptr);
+  explicit FileChooserWidget(const Mode mode, const QString& initial_path = QString(), QWidget *parent = nullptr);
+  explicit FileChooserWidget(const Mode mode, const QString& label, const QString &initial_path = QString(), QWidget *parent = nullptr);
+  ~FileChooserWidget() = default;
+
+  void SetFileFilter(const QString &file_filter);
+
+  void SetPath(const QString &path);
+  QString Path() const;
+
+ public Q_SLOTS:
+  void ChooseFile();
+
+ private:
+  void Init(const QString &initial_path = QString());
+
+ private:
+  QHBoxLayout *layout_;
+  QLineEdit *path_edit_;
+  const Mode mode_;
+  QString file_filter_;
+  QString open_dir_path_;
+};
+
+#endif  // FILECHOOSERWIDGET_H