feat: rewind to track start on previous when past 8 seconds (#2136)

* feat: rewind to track start on previous when past 8 seconds

Adds MprisController.previousOrRewind() which rewinds the current track
to position 0 if more than 8 seconds in (with canSeek check), and falls
back to previous() otherwise — matching traditional media player behaviour.

All previous() call sites across Media.qml, MediaPlayerTab.qml,
MediaOverviewCard.qml, LockScreenContent.qml and DMSShellIPC.qml
are updated to use the new shared function.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: poll position in MprisController for previousOrRewind accuracy

Without a polling timer, activePlayer.position is never updated in
contexts that don't display a seekbar (e.g. the DankBar widget), causing
the position > 8 check in previousOrRewind() to always see 0 and fall
through to previous() instead of rewinding.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

quickshell/DMSShellIPC.qml

@@ -369,9 +369,7 @@ Item {
         }
 
         function previous(): void {
-            if (MprisController.activePlayer && MprisController.activePlayer.canGoPrevious) {
-                MprisController.activePlayer.previous();
-            }
+            MprisController.previousOrRewind();
         }
 
         function next(): void {

quickshell/Modules/DankBar/Widgets/Media.qml

@@ -99,7 +99,7 @@ BasePill {
 
             if (isMouseWheelY) {
                 if (deltaY > 0) {
-                    activePlayer.previous();
+                    MprisController.previousOrRewind();
                 } else {
                     activePlayer.next();
                 }
@@ -107,7 +107,7 @@ BasePill {
                 scrollAccumulatorY += deltaY;
                 if (Math.abs(scrollAccumulatorY) >= touchpadThreshold) {
                     if (scrollAccumulatorY > 0) {
-                        activePlayer.previous();
+                        MprisController.previousOrRewind();
                     } else {
                         activePlayer.next();
                     }
@@ -214,7 +214,7 @@ BasePill {
                             if (mouse.button === Qt.LeftButton) {
                                 activePlayer.togglePlaying();
                             } else if (mouse.button === Qt.MiddleButton) {
-                                activePlayer.previous();
+                                MprisController.previousOrRewind();
                             } else if (mouse.button === Qt.RightButton) {
                                 activePlayer.next();
                             }
@@ -370,11 +370,7 @@ BasePill {
                             anchors.fill: parent
                             enabled: root.playerAvailable
                             cursorShape: Qt.PointingHandCursor
-                            onClicked: {
-                                if (activePlayer) {
-                                    activePlayer.previous();
-                                }
-                            }
+                            onClicked: MprisController.previousOrRewind()
                         }
                     }
 

quickshell/Modules/DankDash/MediaPlayerTab.qml

@@ -487,17 +487,7 @@ Item {
                                     anchors.fill: parent
                                     hoverEnabled: true
                                     cursorShape: Qt.PointingHandCursor
-                                    onClicked: {
-                                        if (!activePlayer) {
-                                            return;
-                                        }
-
-                                        if (activePlayer.position > 8 && activePlayer.canSeek) {
-                                            activePlayer.position = 0;
-                                        } else {
-                                            activePlayer.previous();
-                                        }
-                                    }
+                                    onClicked: MprisController.previousOrRewind()
                                 }
                             }
                         }

quickshell/Modules/DankDash/Overview/MediaOverviewCard.qml

@@ -145,14 +145,7 @@ Card {
                     anchors.fill: parent
                     hoverEnabled: true
                     cursorShape: Qt.PointingHandCursor
-                    onClicked: {
-                        if (!activePlayer) return
-                        if (activePlayer.position > 8 && activePlayer.canSeek) {
-                            activePlayer.position = 0
-                        } else {
-                            activePlayer.previous()
-                        }
-                    }
+                    onClicked: MprisController.previousOrRewind()
                 }
             }
 

quickshell/Modules/Lock/LockScreenContent.qml

@@ -1338,7 +1338,7 @@ Item {
                             enabled: MprisController.activePlayer?.canGoPrevious ?? false
                             hoverEnabled: enabled
                             cursorShape: enabled ? Qt.PointingHandCursor : Qt.ArrowCursor
-                            onClicked: MprisController.activePlayer?.previous()
+                            onClicked: MprisController.previousOrRewind()
                         }
                     }
 

quickshell/Services/MprisController.qml

@@ -10,4 +10,20 @@ Singleton {
 
     readonly property list<MprisPlayer> availablePlayers: Mpris.players.values
     property MprisPlayer activePlayer: availablePlayers.find(p => p.isPlaying) ?? availablePlayers.find(p => p.canControl && p.canPlay) ?? null
+
+    Timer {
+        interval: 1000
+        running: root.activePlayer?.playbackState === MprisPlaybackState.Playing
+        repeat: true
+        onTriggered: root.activePlayer?.positionChanged()
+    }
+
+    function previousOrRewind(): void {
+        if (!activePlayer)
+            return;
+        if (activePlayer.position > 8 && activePlayer.canSeek)
+            activePlayer.position = 0;
+        else if (activePlayer.canGoPrevious)
+            activePlayer.previous();
+    }
 }