feat: add focus with AlphabetCategory when change to another word.

as title.

PMS-BUG-289159

Author: wjyrich

qml/windowed/AlphabetCategoryPopup.qml

@@ -22,6 +22,7 @@ Popup {
 
     property alias existingSections: alphabetCategoryDelegateModel.model
     property int columns: 5
+    property string currentCategory: ""
 
     readonly property int cellWidth: 24
     readonly property int cellHeight: 24
@@ -31,6 +32,41 @@ Popup {
     width: alphabetCategoryContainer.width + 20
     height: alphabetCategoryContainer.height + 20
 
+    function setCurrentCategory(category) {
+        currentCategory = category
+        // 使用Timer延迟设置，确保model已经更新
+        setIndexTimer.category = category
+        setIndexTimer.restart()
+    }
+
+    Timer {
+        id: setIndexTimer
+        interval: 10
+        property string category: ""
+        onTriggered: {
+            if (category !== "") {
+                for (let i = 0; i < alphabetCategoryDelegateModel.model.length; i++) {
+                    if (alphabetCategoryDelegateModel.model[i] === category) {
+                        // 临时禁用高亮移动动画，直接跳转到目标位置
+                        var originalDuration = alphabetCategoryContainer.highlightMoveDuration
+                        alphabetCategoryContainer.highlightMoveDuration = 0
+                        alphabetCategoryContainer.currentIndex = i
+                        // 恢复原来的动画时间
+                        alphabetCategoryContainer.highlightMoveDuration = originalDuration
+                        break
+                    }
+                }
+            }
+        }
+    }
+
+    onCurrentCategoryChanged: {
+        if (currentCategory !== "") {
+            setIndexTimer.category = currentCategory
+            setIndexTimer.restart()
+        }
+    }
+
     DelegateModel {
         id: alphabetCategoryDelegateModel
 
@@ -100,6 +136,19 @@ Popup {
        activeFocusOnTab: gridViewFocus
     }
 
+    Item {
+        id: focusRouter
+        focus: root.visible
+        Keys.onPressed: function (event) {
+            if (event.key === Qt.Key_Left ||
+                event.key === Qt.Key_Right ||
+                event.key === Qt.Key_Up ||
+                event.key === Qt.Key_Down) {
+                alphabetCategoryContainer.focus = true
+            }
+        }
+    }
+
     background: FloatingPanel {
         radius: DStyle.Style.popup.radius
         dropShadowColor: null

qml/windowed/AppListView.qml

@@ -129,6 +129,7 @@ FocusScope {
                         onClicked: {
                             if (CategorizedSortProxyModel.categoryType === CategorizedSortProxyModel.Alphabetary) {
                                 alphabetCategoryPopup.existingSections = CategorizedSortProxyModel.alphabetarySections()
+                                alphabetCategoryPopup.setCurrentCategory(section.toUpperCase())
                                 var mousePos = mapToItem(listView, mouseX, mouseY)
                                 var y = (mousePos.y + alphabetCategoryPopup.height) < listView.height ? mousePos.y : listView.height - alphabetCategoryPopup.height
                                 alphabetCategoryPopup.y = y
@@ -396,6 +397,7 @@ FocusScope {
 
             onCategoryClicked: {
                 scrollToAlphabetCategory(character)
+                alphabetCategoryPopup.setCurrentCategory(character)
                 close()
             }
 

qml/windowed/GridViewContainer.qml

@@ -36,11 +36,17 @@ FocusScope {
     readonly property alias gridViewWidth: gridView.width
     property alias highlight: gridView.highlight
     property ScrollBar vScrollBar
+    property alias currentIndex: gridView.currentIndex
+    property alias highlightMoveDuration: gridView.highlightMoveDuration
 
     function positionViewAtBeginning() {
         gridView.positionViewAtBeginning()
     }
 
+    function setCurrentIndex(index) {
+        gridView.currentIndex = index
+    }
+
     function itemAt(x, y) {
         let point = mapToItem(gridView, x, y)
         return gridView.itemAt(point.x, point.y)