From 31f3cd385f24431d68d0503014dc67b98acb19a7 Mon Sep 17 00:00:00 2001
From: zhangkun2 <zhangkun2@uniontech.com>
Date: Mon, 14 Sep 2026 12:56:27 +0800
Subject: [PATCH] fix: filter touch events in windowed icon delegate
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1. Root cause: IconItemDelegate.qml MouseArea.onPressed lacks
   mouse.source check, touch-synthesized events consumed by drag
   mechanism, blocking parent Flickable scrolling
2. Fix: add mouse.source guard to reject synthesized events, add
   TapHandler for touch tap and long-press menu support
3. Impact: only IconItemDelegate.qml changed, real mouse interaction
   unaffected, follows same pattern as AppListView (f86bd7a)

Log: fix touch scroll triggering app drag in windowed launcher

Influence:
1. Test touchscreen single-finger scroll in app grid area
2. Test touchscreen tap to open app and long-press for context menu
3. Test mouse left-click, right-click, and drag remain functional

fix: 过滤窗口模式图标代理的触摸事件

1. 根因：IconItemDelegate.qml 的 MouseArea.onPressed 缺少
   mouse.source 检查，触摸合成事件被 drag 机制消费，阻止父级
   Flickable 滚动
2. 方案：添加 mouse.source 守卫拒绝合成事件，添加 TapHandler
   支持触摸点击和长按菜单
3. 影响：仅修改 IconItemDelegate.qml，真实鼠标交互不受影响，
   与 AppListView（f86bd7a）修复模式一致

Log: 修复窗口模式启动器触摸滑动触发应用拖拽的问题

Influence:
1. 测试触控屏单指在应用网格区域滑动滚动
2. 测试触控屏点击打开应用和长按弹出右键菜单
3. 测试鼠标左键点击、右键菜单、拖拽功能正常

PMS: BUG-309193
---
 qml/windowed/IconItemDelegate.qml | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/qml/windowed/IconItemDelegate.qml b/qml/windowed/IconItemDelegate.qml
index 9a8b403c..0284f3a2 100644
--- a/qml/windowed/IconItemDelegate.qml
+++ b/qml/windowed/IconItemDelegate.qml
@@ -59,7 +59,24 @@ Control {
             drag.onActiveChanged: function () {
                 root.Drag.active = drag.active
             }
+
+            TapHandler {
+                acceptedDevices: PointerDevice.TouchScreen
+                gesturePolicy: TapHandler.DragThreshold
+                onTapped: function(eventPoint, buttons) {
+                    root.itemClicked()
+                }
+                onLongPressed: {
+                    root.menuTriggered()
+                }
+            }
+
             onPressed: function (mouse) {
+                // 触屏合成的鼠标事件不接受，交给 Flickable 处理滚动
+                if (mouse.source !== undefined && mouse.source !== Qt.MouseEventNotSynthesized) {
+                    mouse.accepted = false
+                    return
+                }
                 if (mouse.button === Qt.LeftButton && root.dndEnabled) {
                     appIcon.grabToImage(function(result) {
                         root.Drag.imageSource = result.url;