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Merged
18202781743 merged 1 commit into from
Sep 4, 2025
Merged

sync: from linuxdeepin/dtkdeclarative #296

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4 changes: 2 additions & 2 deletions qt6/src/qml/ArrowListView.qml
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Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down Expand Up @@ -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
Expand Down
41 changes: 37 additions & 4 deletions qt6/src/qml/private/ArrowListViewButton.qml
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Original file line number Diff line number Diff line change
Expand Up @@ -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
}
}
}
}
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