feat: 添加配置 hover 显示桌面的时间

不影响默认行为，默认该配置为 0 即立刻显示或恢复
如果需要可以进行 dconfig 配置

Log: 添加配置显示桌面的悬浮时间
Change-Id: I0b394bf02717b6ba1abe1e5c86fab82d314f39fc

configs/org.deepin.dde.dock.json

@@ -26,6 +26,17 @@
             "description":"ture: Dock is hidden all the time, false: Depend on other settings of dock",
             "permissions":"readwrite",
             "visibility":"private"
+        },
+        "toggleDesktopInterval":{
+            "value": 0,
+            "serial": 0,
+            "flags":[],
+            "name":"toggleDesktopInterval",
+            "name[zh_CN]":"显示（或恢复）桌面的悬浮时间间隔",
+            "description[zh_CN]":"显示（或恢复）桌面将在悬停间隔后切换（以毫秒为单位）",
+            "description":"show(or restore) desktop will toggle after the hover interval (in milliseconds)",
+            "permissions":"readwrite",
+            "visibility":"private"
         }
     }
-}
+}

frame/window/components/desktop_widget.cpp

@@ -13,8 +13,12 @@ DesktopWidget::DesktopWidget(QWidget *parent)
     : QWidget (parent)
     , m_isHover(false)
     , m_needRecoveryWin(false)
+    ,m_timer(new QTimer(this))
 {
     setMouseTracking(true);
+    m_timer->setInterval(0);
+    m_timer->setSingleShot(true);
+    connect(m_timer, &QTimer::timeout, this, &DesktopWidget::toggleDesktop);
 }
 
 void DesktopWidget::paintEvent(QPaintEvent *event)
@@ -41,7 +45,9 @@ void DesktopWidget::enterEvent(QEvent *event)
 {
     if (checkNeedShowDesktop()) {
         m_needRecoveryWin = true;
-        QProcess::startDetached("/usr/lib/deepin-daemon/desktop-toggle");
+//        QProcess::startDetached("/usr/lib/deepin-daemon/desktop-toggle");
+        if (m_timer)
+            m_timer->start();
     }
 
     m_isHover = true;
@@ -54,7 +60,10 @@ void DesktopWidget::leaveEvent(QEvent *event)
 {
     // 鼠标移入时隐藏了窗口，移出时恢复
     if (m_needRecoveryWin) {
-        QProcess::startDetached("/usr/lib/deepin-daemon/desktop-toggle");
+        if (m_timer->isActive())
+            m_timer->stop();
+        else
+            toggleDesktop();
     }
 
     m_isHover = false;
@@ -71,13 +80,25 @@ void DesktopWidget::mousePressEvent(QMouseEvent *event)
             m_needRecoveryWin = false;
         } else {
             // 需求调整，鼠标移入，预览桌面时再点击显示桌面保持显示桌面状态，再点击才切换桌面显、隐状态
-            QProcess::startDetached("/usr/lib/deepin-daemon/desktop-toggle");
+            toggleDesktop();
         }
     }
 
     QWidget::mousePressEvent(event);
 }
 
+void DesktopWidget::toggleDesktop()
+{
+    QProcess::startDetached("/usr/lib/deepin-daemon/desktop-toggle");
+}
+
+void DesktopWidget::setToggleDesktopInterval(int ms)
+{
+    if (m_timer) {
+        m_timer->setInterval(ms);
+    }
+}
+
 /**
  * @brief ShowDesktopWidget::checkNeedShowDesktop 根据窗管提供接口（当前是否显示的桌面），提供鼠标
  * 移入 显示桌面窗口 区域时，是否需要显示桌面判断依据

frame/window/components/desktop_widget.h

@@ -8,12 +8,14 @@
 #include <QWidget>
 #include <QPaintEvent>
 #include <QEnterEvent>
+#include <QTimer>
 
 class DesktopWidget : public QWidget
 {
 public:
     explicit DesktopWidget(QWidget *parent = nullptr);
 
+    void setToggleDesktopInterval(int ms);
 private:
     bool checkNeedShowDesktop();
 
@@ -22,10 +24,12 @@ protected:
     void enterEvent(QEvent *event) override;
     void leaveEvent(QEvent *event) override;
     void mousePressEvent(QMouseEvent *event) override;
+    void toggleDesktop();
 
 private:
     bool m_isHover;         // 判断鼠标是否移到desktop区域
     bool m_needRecoveryWin;
+    QTimer *m_timer;
 };
 
 #endif // DESKTOP_WIDGET_H

frame/window/mainpanelcontrol.cpp

@@ -944,6 +944,12 @@ void MainPanelControl::updatePluginsLayout()
     }
 }
 
+void MainPanelControl::setToggleDesktopInterval(int ms)
+{
+    if (m_desktopWidget)
+        m_desktopWidget->setToggleDesktopInterval(ms);
+}
+
 void MainPanelControl::itemUpdated(DockItem *item)
 {
     item->updateGeometry();

frame/window/mainpanelcontrol.h

@@ -31,6 +31,7 @@ public:
     void setDisplayMode(DisplayMode dislayMode);
     void resizeDockIcon();
     void updatePluginsLayout();
+    void setToggleDesktopInterval(int ms);
 
 public slots:
     void insertItem(const int index, DockItem *item);

frame/window/mainwindow.cpp

@@ -141,8 +141,11 @@ void MainWindow::launch()
     m_shadowMaskOptimizeTimer->start();
     QTimer::singleShot(0, this, [ this ] {
         bool showDock = true;
-        if (m_dconfig.data()->isValid())
+        if (m_dconfig.data()->isValid()) {
             showDock = !m_dconfig.data()->value("alwaysHideDock", false).toBool();
+            const int ms = m_dconfig.data()->value("toggleDesktopInterval", 0).toInt();
+            m_mainPanel->setToggleDesktopInterval(ms);
+        }
         qApp->setProperty("ALWAYS_HIDE_DOCK", !showDock);
         setVisible(showDock);
         if (!showDock && m_multiScreenWorker->dockInter()) {
@@ -304,6 +307,9 @@ void MainWindow::initComponents()
                 if (!showDock && m_multiScreenWorker->dockInter()) {
                     m_multiScreenWorker->dockInter()->setHideMode(KeepHidden);
                 }
+            } else if ("toggleDesktopInterval") {
+                const int ms = m_dconfig.data()->value(key, 0).toInt();
+                m_mainPanel->setToggleDesktopInterval(ms);
             }
         });
     }