QmlDesigner.PropertyEditor: Adding signal selectionToBeChanged

Controls can connect to this signal and commit data to the backend
before the slection changes.
This is required since editingFinished signals are usually triggered to
"late".

Change-Id: I99fa27064473ceee2d1a21b25f64a13370fb4cef
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>

5 files changed, 18 insertions, 0 deletions

diff --git a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.cpp b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.cpp
index e985d03870..d0b792b685 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.cpp
+++ b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.cpp
@@ -437,6 +437,11 @@ bool PropertyEditorQmlBackend::checkIfUrlExists(const QUrl &url)
     return (QFileInfo(fileFromUrl(url)).exists());
 }
 
+void PropertyEditorQmlBackend::emitSelectionToBeChanged()
+{
+    m_backendModelNode.emitSelectionToBeChanged();
+}
+
 QUrl PropertyEditorQmlBackend::getQmlUrlForModelNode(const ModelNode &modelNode, TypeName &className)
 {
     if (modelNode.isValid()) {
diff --git a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.h b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.h
index cccbce7eab..e79caab56a 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.h
+++ b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.h
@@ -74,6 +74,8 @@ public:
 
     static bool checkIfUrlExists(const QUrl &url);
 
+    void emitSelectionToBeChanged();
+
 private:
     void createPropertyEditorValue(const QmlObjectNode &qmlObjectNode,
                                    const PropertyName &name, const QVariant &value,
diff --git a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp
index 0cf7b5016f..46e80c9238 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp
+++ b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp
@@ -577,6 +577,9 @@ void PropertyEditorView::scriptFunctionsChanged(const ModelNode &/*node*/, const
 
 void PropertyEditorView::select(const ModelNode &node)
 {
+    if (m_qmlBackEndForCurrentType)
+        m_qmlBackEndForCurrentType->emitSelectionToBeChanged();
+
     if (QmlObjectNode(node).isValid())
         m_selectedNode = node;
     else
diff --git a/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.cpp b/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.cpp
index 776e6c00d2..220e6f81ba 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.cpp
+++ b/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.cpp
@@ -50,4 +50,9 @@ void QmlModelNodeProxy::registerDeclarativeType()
     qmlRegisterType<QmlModelNodeProxy>("HelperWidgets",2,0,"ModelNodeProxy");
 }
 
+void QmlModelNodeProxy::emitSelectionToBeChanged()
+{
+    emit selectionToBeChanged();
+}
+
 }
diff --git a/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.h b/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.h
index 516477fcfe..d72644ff44 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.h
+++ b/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.h
@@ -47,8 +47,11 @@ public:
 
     static void registerDeclarativeType();
 
+    void emitSelectionToBeChanged();
+
 signals:
     void selectionChanged();
+    void selectionToBeChanged();
 
 public slots: