Fixes: Context help in Designer

Task: 235520
Details: Display help of current property editor object

src/plugins/designer/formwindoweditor.cpp

@@ -45,6 +45,8 @@
 #include <QtDesigner/QDesignerFormWindowInterface>
 #include <QtDesigner/QDesignerFormEditorInterface>
 #include <QtDesigner/QDesignerFormWindowManagerInterface>
+#include <QtDesigner/QDesignerPropertyEditorInterface>
+#include <QtDesigner/QDesignerWidgetDataBaseInterface>
 #include <qt_private/formwindowbase_p.h>
 #include <qt_private/qtresourcemodel_p.h>
 
@@ -325,3 +327,25 @@ void FormWindowEditor::activate()
 {
     m_editorWidget->activate();
 }
+
+QString FormWindowEditor::contextHelpId() const
+{
+    // TODO [13.2.09]: Replace this by QDesignerIntegrations context help Id
+    // in the upcoming version of Qt
+    QDesignerFormEditorInterface *core = FormEditorW::instance()->designerEditor();
+    QObject *o = core->propertyEditor()->object();
+    if (!o)
+        return QString();
+    const QDesignerWidgetDataBaseInterface *db = core->widgetDataBase();
+    const int dbIndex = db->indexOfObject(o, true);
+    if (dbIndex == -1)
+        return QString();
+    QString className = db->item(dbIndex)->name();
+    if (className == QLatin1String("Line"))
+        className = QLatin1String("QFrame");
+    else if (className == QLatin1String("Spacer"))
+        className = QLatin1String("QSpacerItem");
+    else if (className == QLatin1String("QLayoutWidget"))
+        className = QLatin1String("QLayout");
+    return className;
+}

src/plugins/designer/formwindoweditor.h

@@ -63,7 +63,6 @@ class EditorWidget;
 class FormWindowEditor : public Core::IEditor
 {
     Q_OBJECT
-
 public:
     FormWindowEditor(const QList<int> &context,
                      QDesignerFormWindowInterface *form,
@@ -84,8 +83,9 @@ public:
     bool restoreState(const QByteArray &state);
 
     // ContextInterface
-    QList<int> context() const;
-    QWidget *widget();
+    virtual QList<int> context() const;
+    virtual QWidget *widget();
+    virtual QString contextHelpId() const;
 
     QDesignerFormWindowInterface *formWindow() const;
     QWidget *integrationContainer();