sync: from linuxdeepin/dtkdeclarative

Synchronize source files from linuxdeepin/dtkdeclarative.

Source-pull-request: linuxdeepin/dtkdeclarative#524

Author: deepin-ci-robot

qt6/src/qml/ArrowListView.qml

@@ -24,7 +24,7 @@ FocusScope {
         P.ArrowListViewButton {
             visible: itemsView.interactive
             Layout.alignment: Qt.AlignHCenter
-            Layout.preferredWidth: width
+            Layout.fillWidth: true
             Layout.preferredHeight: height
             view: itemsView
             direction: P.ArrowListViewButton.UpButton
@@ -79,7 +79,7 @@ FocusScope {
         P.ArrowListViewButton {
             visible: itemsView.interactive
             Layout.alignment: Qt.AlignHCenter
-            Layout.preferredWidth: width
+            Layout.fillWidth: true
             Layout.preferredHeight: height
             view: itemsView
             direction: P.ArrowListViewButton.DownButton

qt6/src/qml/private/ArrowListViewButton.qml

@@ -16,16 +16,49 @@ Loader {
     property int direction
     active: view.interactive
 
-    sourceComponent: Button {
-        flat: true
+    sourceComponent: ActionButton {
+        palette.windowText: undefined
         enabled: direction === ArrowListViewButton.UpButton ? !view.atYBeginning : !view.atYEnd
         width: DS.Style.arrowListView.stepButtonSize.width
         height: DS.Style.arrowListView.stepButtonSize.height
         icon.name: direction === ArrowListViewButton.UpButton ? DS.Style.arrowListView.upButtonIconName
                                                               : DS.Style.arrowListView.downButtonIconName
         icon.width: DS.Style.arrowListView.stepButtonIconSize.width
         icon.height: DS.Style.arrowListView.stepButtonIconSize.height
-        onClicked: direction === ArrowListViewButton.UpButton ? view.decrementCurrentIndex()
-                                                              : view.incrementCurrentIndex()
+
+        // Unified scroll operation function
+        function performScroll() {
+            direction === ArrowListViewButton.UpButton ? view.decrementCurrentIndex() 
+                                                       : view.incrementCurrentIndex()
+        }
+
+        // Auto-scroll control properties using state machine approach
+        property bool shouldAutoScroll: hovered && enabled
+        property bool delayCompleted: false
+
+        // Timer for initial delay before starting hover scroll
+        Timer {
+            id: initialDelayTimer
+            interval: 300
+            repeat: false
+            running: shouldAutoScroll && !delayCompleted
+            onTriggered: delayCompleted = true
+        }
+
+        // Timer for continuous hover scrolling
+        Timer {
+            id: hoverScrollTimer
+            interval: 100
+            repeat: true
+            running: shouldAutoScroll && delayCompleted
+            onTriggered: performScroll()
+        }
+                
+        // Reset state when auto-scroll should stop
+        onShouldAutoScrollChanged: {
+            if (!shouldAutoScroll) {
+                delayCompleted = false
+            }
+        }
     }
 }