QmlDesigner: Link OutputPane visible to DockWidget

Task-number: QDS-1639
Change-Id: I8f384669d402d961683e85ff237a224b6d26cf34
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/coreplugin/outputpane.h

@@ -53,6 +53,9 @@ public:
     void ensureSizeHintAsMinimum();
     int nonMaximizedSize() const;
 
+signals:
+    void visibilityChangeRequested(bool visible);
+
 protected:
     void resizeEvent(QResizeEvent *event) override;
     void showEvent(QShowEvent *) override;

src/plugins/coreplugin/outputpanemanager.cpp

@@ -612,6 +612,7 @@ void OutputPaneManager::slotHide()
 {
     OutputPanePlaceHolder *ph = OutputPanePlaceHolder::getCurrent();
     if (ph) {
+        emit ph->visibilityChangeRequested(false);
         ph->setVisible(false);
         int idx = currentIndex();
         QTC_ASSERT(idx >= 0, return);
@@ -654,6 +655,7 @@ void OutputPaneManager::showPage(int idx, int flags)
     if (onlyFlash) {
         g_outputPanes.at(idx).button->flash();
     } else {
+        emit ph->visibilityChangeRequested(true);
         // make the page visible
         ph->setVisible(true);
 

src/plugins/qmldesigner/designmodewidget.cpp

@@ -210,22 +210,6 @@ void DesignModeWidget::disableWidgets()
     m_isDisabled = true;
 }
 
-bool DesignModeWidget::eventFilter(QObject *obj, QEvent *event) // TODO
-{
-    if (event->type() == QEvent::Hide) {
-        qDebug() << ">>> HIDE";
-        m_outputPaneDockWidget->toggleView(false);
-        return true;
-    } else if (event->type() == QEvent::Show) {
-        qDebug() << ">>> SHOW";
-        m_outputPaneDockWidget->toggleView(true);
-        return true;
-    } else {
-        // standard event processing
-        return QObject::eventFilter(obj, event);
-    }
-}
-
 void DesignModeWidget::setup()
 {
     auto &actionManager = viewManager().designerActionManager();
@@ -354,7 +338,8 @@ void DesignModeWidget::setup()
         command->setAttribute(Core::Command::CA_Hide);
         mviews->addAction(command);
 
-        //outputPanePlaceholder->installEventFilter(this);
+        connect(outputPanePlaceholder, &Core::OutputPanePlaceHolder::visibilityAboutToChange,
+                m_outputPaneDockWidget, &ADS::DockWidget::toggleView);
     }
 
     // Create toolbars

src/plugins/qmldesigner/designmodewidget.h

@@ -86,9 +86,6 @@ public:
 
     static QWidget *createProjectExplorerWidget(QWidget *parent);
 
-protected:
-    bool eventFilter(QObject *obj, QEvent *event) override;
-
 private: // functions
     enum InitializeStatus { NotInitialized, Initializing, Initialized };