Don't allow resizing while dragging. Fixes #134

src/timeline2/view/qml/timeline.qml

@@ -160,6 +160,10 @@ Rectangle {
         scrollTimer.running = false
         scrollTimer.stop()
     }
+    
+    function isDragging() {
+        return dragProxy.draggedItem > -1 && dragProxyArea.pressed
+    }
 
     function initDrag(itemObject, itemCoord, itemId, itemPos, itemTrack, isComposition) {
         dragProxy.x = itemObject.modelStart * timeScale

src/timeline2/view/timelinecontroller.cpp

@@ -556,8 +556,21 @@ void TimelineController::unGroupSelection(int cid)
     }
 }
 
+bool TimelineController::dragOperationRunning()
+{
+    QVariant returnedValue;
+    QMetaObject::invokeMethod(m_root, "isDragging", Q_RETURN_ARG(QVariant, returnedValue));
+    return returnedValue.toBool();
+}
+
 void TimelineController::setInPoint()
 {
+    if (dragOperationRunning()) {
+        // Don't allow timeline operation while drag in progress
+        qDebug()<<"Cannot operate while dragging";
+        return;
+    }
+
     int cursorPos = timelinePosition();
     const auto selection = m_model->getCurrentSelection();
     if (!selection.empty()) {
@@ -579,6 +592,11 @@ int TimelineController::timelinePosition() const
 
 void TimelineController::setOutPoint()
 {
+    if (dragOperationRunning()) {
+        // Don't allow timeline operation while drag in progress
+        qDebug()<<"Cannot operate while dragging";
+        return;
+    }
     int cursorPos = timelinePosition();
     const auto selection = m_model->getCurrentSelection();
     if (!selection.empty()) {

src/timeline2/view/timelinecontroller.h

@@ -439,6 +439,8 @@ public:
     void grabCurrent();
     /** @brief Returns keys for all used thumbnails */
     QStringList getThumbKeys();
+    /** @brief Returns true if a drag operation is currently running in timeline */
+    bool dragOperationRunning();
 
 public slots:
     void resetView();