QmlDesigner: Prevent showing preview tooltip when button is pressed

On some platforms, drag will stop deliving mouse events to MouseArea.
Disallowed showing the tooltip when a mouse button is pressed.

Fixes: QDS-6481
Change-Id: I8777d57be1bfef8470571027d9257d3a10eb5a7a
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Samuel Ghinet <samuel.ghinet@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

share/qtcreator/qmldesigner/itemLibraryQmlSources/Assets.qml

@@ -665,15 +665,23 @@ Item {
                         MouseArea {
                             id: mouseArea
 
+                            property bool allowTooltip: true
+
                             anchors.fill: parent
                             hoverEnabled: true
                             acceptedButtons: Qt.LeftButton | Qt.RightButton
 
                             onExited: tooltipBackend.hideTooltip()
-                            onCanceled: tooltipBackend.hideTooltip()
+                            onEntered: allowTooltip = true
+                            onCanceled: {
+                                tooltipBackend.hideTooltip()
+                                allowTooltip = true
+                            }
                             onPositionChanged: tooltipBackend.reposition()
                             onPressed: (mouse)=> {
                                 forceActiveFocus()
+                                allowTooltip = false
+                                tooltipBackend.hideTooltip()
                                 var ctrlDown = mouse.modifiers & Qt.ControlModifier
                                 if (mouse.button === Qt.LeftButton) {
                                     if (!root.selectedAssets[filePath] && !ctrlDown)
@@ -698,12 +706,12 @@ Item {
                                     root.contextDir = model.fileDir
                                     root.isDirContextMenu = false
 
-                                    tooltipBackend.hideTooltip()
                                     contextMenu.popup()
                                 }
                             }
 
                             onReleased: (mouse)=> {
+                                allowTooltip = true
                                 if (mouse.button === Qt.LeftButton) {
                                     if (!(mouse.modifiers & Qt.ControlModifier))
                                         root.selectedAssets = {}
@@ -720,7 +728,7 @@ Item {
 
                             Timer {
                                 interval: 1000
-                                running: mouseArea.containsMouse
+                                running: mouseArea.containsMouse && mouseArea.allowTooltip
                                 onTriggered: {
                                     if (suffix === ".ttf" || suffix === ".otf") {
                                         tooltipBackend.name = fileName

share/qtcreator/qmldesigner/itemLibraryQmlSources/ItemDelegate.qml

@@ -88,6 +88,8 @@ Item {
 
             onShowContextMenu: delegateRoot.showContextMenu()
             onPressed: (mouse)=> {
+                allowTooltip = false
+                hide()
                 if (mouse.button === Qt.LeftButton)
                     rootView.startDragAndDrop(itemLibraryEntry, mapToGlobal(mouse.x, mouse.y))
             }

share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/ImagePreviewTooltipArea.qml

@@ -30,6 +30,8 @@ import HelperWidgets 2.0
 MouseArea {
     id: mouseArea
 
+    property bool allowTooltip: true
+
     signal showContextMenu()
 
     function hide()
@@ -38,7 +40,12 @@ MouseArea {
     }
 
     onExited: tooltipBackend.hideTooltip()
-    onCanceled: tooltipBackend.hideTooltip()
+    onEntered: allowTooltip = true
+    onCanceled: {
+        tooltipBackend.hideTooltip()
+        allowTooltip = true
+    }
+    onReleased: allowTooltip = true
     onPositionChanged: tooltipBackend.reposition()
     onClicked: function(mouse) {
         forceActiveFocus()
@@ -51,7 +58,7 @@ MouseArea {
 
     Timer {
         interval: 1000
-        running: mouseArea.containsMouse
+        running: mouseArea.containsMouse && mouseArea.allowTooltip
         onTriggered: {
             tooltipBackend.name = itemName
             tooltipBackend.path = componentPath

src/plugins/qmldesigner/components/navigator/navigatortreeview.cpp

@@ -293,8 +293,15 @@ void NavigatorTreeView::mousePressEvent(QMouseEvent *event)
 
 void NavigatorTreeView::startDrag(Qt::DropActions supportedActions)
 {
-    if (m_dragAllowed)
+    if (m_dragAllowed) {
+        if (m_previewToolTip) {
+            // Workaround to ensure tooltip doesn't linger during drag, as drag grabs all mouse
+            // events on some platforms (e.g. mac)
+            m_previewToolTip->hide();
+            m_previewToolTipNodeId = -1;
+        }
         QTreeView::startDrag(supportedActions);
+    }
 }
 
 }