fix: Fix the touch screen vertical swipe dragging issue

[pengfeixx]

Fix the touch screen vertical swipe dragging issue

Log: Fix the touch screen vertical swipe dragging issue
pms: BUG-351197

Summary by Sourcery

Handle touch gesture completion in the clipboard list view to resolve incorrect drag state after vertical swipe on touch screens.

Bug Fixes:

• Reset the list view drag-ready state when touch gestures finish or are canceled to prevent unintended dragging after vertical swipes on touch screens.

Enhancements:

• Override the generic event handler in the clipboard list view to process gesture events and maintain consistent interaction behavior.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds gesture handling to the clipboard ListView so that drag-ready state is reset when touch gestures finish or are canceled, fixing vertical swipe drag issues, and updates SPDX copyright years.

Sequence diagram for handling gesture events to reset drag state

sequenceDiagram
    participant QScroller
    participant TouchScreen
    participant QtEventLoop
    participant ListView
    participant QListView

    TouchScreen->>QtEventLoop: QEvent_Gesture
    QtEventLoop->>ListView: event(QEvent_pointer)
    activate ListView
    ListView->>ListView: check event->type() == QEvent_Gesture
    ListView->>ListView: gestureEvent = static_cast_QGestureEvent(event)
    loop for each gesture in gestureEvent->gestures()
        ListView->>ListView: check gesture->state()
        alt GestureFinished_or_GestureCanceled
            ListView->>ListView: resetReadyDragState()
        end
    end
    ListView->>QListView: QListView::event(event)
    deactivate ListView
    QListView-->>QtEventLoop: bool handled
    QtEventLoop-->>TouchScreen: update scrolling/dragging state

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Updated class diagram for ListView gesture handling

classDiagram
    class QListView {
        <<QtWidget>>
        +event(QEvent_pointer) bool
        +mousePressEvent(QMouseEvent_pointer) void
        +mouseMoveEvent(QMouseEvent_pointer) void
        +mouseReleaseEvent(QMouseEvent_pointer) void
        +mouseDoubleClickEvent(QMouseEvent_pointer) void
        +changeEvent(QEvent_pointer) void
    }

    class ListView {
        +ListView(QWidget_pointer parent)
        +event(QEvent_pointer) bool
        +mousePressEvent(QMouseEvent_pointer) void
        +mouseMoveEvent(QMouseEvent_pointer) void
        +mouseReleaseEvent(QMouseEvent_pointer) void
        +mouseDoubleClickEvent(QMouseEvent_pointer) void
        +changeEvent(QEvent_pointer) void
        -resetReadyDragState() void
    }

    class QEvent {
        +type() QEvent_Type
    }

    class QGestureEvent {
        +gestures() QList_QGesture_pointer
    }

    class QGesture {
        +state() Qt_GestureState
    }

    ListView --|> QListView
    ListView ..> QEvent : overrides_event
    ListView ..> QGestureEvent : casts_to
    ListView ..> QGesture : iterates_gestures
    QGestureEvent ..> QGesture : contains

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File-Level Changes

Change	Details	Files
Reset drag-ready state on completion or cancellation of touch gestures to fix vertical swipe dragging behavior in the clipboard list view.	Include QGestureEvent to support gesture event handling. Override the generic event handler to intercept QEvent::Gesture events. Iterate over active gestures and, when a gesture reaches Finished or Canceled state, call resetReadyDragState() to clear any pending drag. Delegate unhandled events to the base QListView::event implementation.	dde-clipboard/listview.cpp dde-clipboard/listview.h
Update SPDX copyright headers to reflect the extended year range.	Adjust SPDX-FileCopyrightText comment to use year range 2022 - 2026.	dde-clipboard/listview.cpp dde-clipboard/listview.h

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[sourcery-ai]

Hey - I've left some high level feedback:

• Consider restricting the reset logic to specific gesture types (e.g., swipe or pan) instead of all gestures, to avoid unintentionally cancelling drags in response to unrelated gestures like taps or pinch-zooms.
• You might want to short-circuit the event handling (e.g., return true) once you’ve handled a finished/canceled gesture, if you don’t want the base QListView::event to perform additional gesture-related processing that could interfere with the drag state.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Consider restricting the reset logic to specific gesture types (e.g., swipe or pan) instead of all gestures, to avoid unintentionally cancelling drags in response to unrelated gestures like taps or pinch-zooms.
- You might want to short-circuit the event handling (e.g., return true) once you’ve handled a finished/canceled gesture, if you don’t want the base QListView::event to perform additional gesture-related processing that could interfere with the drag state.

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: 18202781743, pengfeixx

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Details

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• debian/deepin/OWNERS

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[pengfeixx]

/forcemerge

[deepin-bot]

This pr force merged! (status: unstable)