findthisdevice: Add audio playback

Similar to the C++ kcm

plugins/findthisdevice/findthisdevicehelper.cpp

@@ -17,6 +17,7 @@
 #endif
 
 #include <QDebug>
+#include <QFileInfo>
 #include <QUrl>
 
 QString FindThisDeviceHelper::defaultSound()
@@ -48,3 +49,8 @@ QString FindThisDeviceHelper::defaultSound()
     }
     return soundURL.toLocalFile();
 }
+
+bool FindThisDeviceHelper::pathExists(const QString &path)
+{
+    return QFileInfo::exists(path);
+}

plugins/findthisdevice/findthisdevicehelper.h

@@ -17,4 +17,5 @@ class FindThisDeviceHelper : public QObject
 
 public:
     static Q_INVOKABLE QString defaultSound();
+    bool pathExists(const QString &path);
 };

plugins/findthisdevice/kdeconnect_findthisdevice_config.qml

@@ -52,9 +52,25 @@ Kirigami.ScrollablePage {
             QQC2.Button {
                 text: i18nc("@action:button", "Choose file")
                 display: QQC2.Button.IconOnly
-                icon.name: "document-open"
+                icon.name: "document-open-symbolic"
                 onClicked: fileDialog.open()
             }
+
+            QQC2.Button {
+                text: i18nc("@action:button", "Play")
+                display: QQC2.Button.IconOnly
+                icon.name: playMusic.playing ? "media-playback-stop-symbolic" : "media-playback-start-symbolic"
+                enabled: FindThisDevice.FindThisDeviceHelper.pathExists(path.text)
+                onClicked: {
+                    playMusic.source = path.text;
+                    playMusic.playing ? playMusic.stop() : playMusic.play();
+                }
+
+                MediaPlayer {
+                    id: playMusic
+                    audioOutput: AudioOutput {}
+                }
+            }
         }
     }
 }