feat: implement real-time trash file count monitoring

[wjyrich]

1. Replace static trash tip text with dynamic file count property
2. Add QFileSystemWatcher to monitor trash directory changes
3. Create setupTrashWatcher method to initialize directory monitoring
4. Define TRASH_FILES_PATH constant for consistent trash path usage
5. Add trashFilesCountChanged signal to notify UI of updates
6. Ensure trash directory exists before setting up watcher

feat: 实现实时回收站文件数量监控

1. 将静态回收站提示文本替换为动态文件计数属性
2. 添加 QFileSystemWatcher 监控回收站目录变化
3. 创建 setupTrashWatcher 方法初始化目录监控
4. 定义 TRASH_FILES_PATH 常量确保回收站路径一致性
5. 添加 trashFilesCountChanged 信号通知 UI 更新
6. 在设置监控器前确保回收站目录存在

PMS: BUG-336825

Summary by Sourcery

Implement real-time Trash file count monitoring by adding a dynamic property, defining a constant path, setting up a filesystem watcher that emits updates, and updating the UI to reflect live count changes

New Features:

• Add trashFilesCount Q_PROPERTY with dynamic computation of Trash directory file count
• Introduce TRASH_FILES_PATH constant and setupTrashWatcher method to ensure the directory exists, watch it with QFileSystemWatcher, and emit trashFilesCountChanged on updates
• Update AppItem.qml tooltip to display trashFilesCount instead of static tip text

[sourcery-ai]

Reviewer's Guide

This PR implements real-time trash file count monitoring by introducing a centralized TRASH_FILES_PATH constant, integrating a QFileSystemWatcher to track changes in the trash directory, and replacing the static trash tip text with a dynamic trashFilesCount property and signal for seamless UI updates.

Sequence diagram for real-time trash file count monitoring and UI update

sequenceDiagram
participant TaskManager
participant QFileSystemWatcher
participant UI
TaskManager->>QFileSystemWatcher: setupTrashWatcher()
QFileSystemWatcher-->>TaskManager: directoryChanged signal
TaskManager-->>UI: trashFilesCountChanged signal
UI->>TaskManager: Read trashFilesCount property

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Updated class diagram for TaskManager with trash monitoring

classDiagram
class TaskManager {
  +QString trashFilesCount()
  +void setupTrashWatcher()
  +signal trashFilesCountChanged()
  -QFileSystemWatcher *m_trashWatcher
}
class QFileSystemWatcher
TaskManager --> QFileSystemWatcher : uses

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File-Level Changes

Change	Details	Files
Centralize trash directory path usage	Define TRASH_FILES_PATH constant Replace inline trash path literals with TRASH_FILES_PATH	panels/dock/taskmanager/taskmanager.cpp panels/dock/taskmanager/taskmanager.h
Add real-time monitoring via QFileSystemWatcher	Include QFileSystemWatcher header and add m_trashWatcher member Implement setupTrashWatcher to initialize watcher and ensure directory exists Invoke setupTrashWatcher in constructor and connect directoryChanged to trashFilesCountChanged	panels/dock/taskmanager/taskmanager.cpp panels/dock/taskmanager/taskmanager.h
Replace static trash tip with dynamic property	Rename getTrashTipText method to trashFilesCount and mark as Q_INVOKABLE Add Q_PROPERTY(trashFilesCount) and trashFilesCountChanged signal Update QML tooltip binding to use trashFilesCount	panels/dock/taskmanager/taskmanager.cpp panels/dock/taskmanager/taskmanager.h panels/dock/taskmanager/package/AppItem.qml

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[sourcery-ai]

Hey there - I've reviewed your changes - here's some feedback:

• Replace the TRASH_FILES_PATH macro with a static const QString (or constexpr) and build the path using QDir::cleanPath or QDir::separator instead of hard-coding "/" for better readability and portability.
• Emit trashFilesCountChanged() once after setupTrashWatcher runs so the UI receives the initial file count immediately on startup.
• Consider changing trashFilesCount to expose an integer property instead of a QString so QML can format the count directly and maintain semantic clarity.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Replace the TRASH_FILES_PATH macro with a static const QString (or constexpr) and build the path using QDir::cleanPath or QDir::separator instead of hard-coding "/" for better readability and portability.
- Emit trashFilesCountChanged() once after setupTrashWatcher runs so the UI receives the initial file count immediately on startup.
- Consider changing trashFilesCount to expose an integer property instead of a QString so QML can format the count directly and maintain semantic clarity.

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[deepin-ci-robot]

deepin pr auto review

这是一个关于 Qt/QML 代码的修改，主要涉及到了工具提示(tooltip)文本的设置时机。让我来分析一下这个改动：

1. 修改内容分析：

• 原代码将 tooltip 的 text 属性直接设置在 PanelToolTip 组件的声明中
• 新代码将 text 的设置移到了 tooltip 打开之前(onTriggered事件中)

2. 改进点：

• 性能优化：避免了不必要的重复计算。之前的代码会在组件初始化时就计算文本，即使 tooltip 不一定会被显示。现在改为在需要显示时才计算。
• 数据实时性：确保显示的文本是最新的。对于垃圾桶这种可能状态会变化的项(比如空间使用情况)，实时更新更准确。
• 逻辑清晰：将相关操作集中在一起，代码更容易维护。

3. 建议和注意事项：

• 确保在 onTriggered 中设置 text 不会造成明显的延迟，因为用户期望 tooltip 能即时显示
• 建议添加注释说明为什么要在运行时设置文本，以便其他开发者理解这个设计决策
• 如果 getTrashTipText() 是一个耗时操作，可能需要考虑缓存机制

4. 安全性：

• 这个修改不会带来安全风险，只是改变了文本设置的时机
• 仍然保持了原来的条件判断逻辑，确保不同类型的 item 显示正确的文本

总的来说，这是一个合理的优化，提高了代码的效率和可维护性。建议采纳这个修改。

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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

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