Implement drag and drop support

Create a QDrag for drag and drop operations that are started in the web
page. React on drag and drop event of QWidget and QQuickItem.

Task-number: QTBUG-43008
Change-Id: If09f09de6e6d5b5f02835985a17cc6bc3262f411
Reviewed-by: Alexandru Croitor <alexandru.croitor@theqtcompany.com>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/core/web_contents_adapter.h b/src/core/web_contents_adapter.h
index 01da38894..d38979177 100644
--- a/src/core/web_contents_adapter.h
+++ b/src/core/web_contents_adapter.h
@@ -52,6 +52,8 @@ struct WebPreferences;
 
 QT_BEGIN_NAMESPACE
 class QAccessibleInterface;
+class QDragEnterEvent;
+class QDragMoveEvent;
 class QWebChannel;
 QT_END_NAMESPACE
 
@@ -153,6 +155,15 @@ public:
     QPointF lastScrollOffset() const;
     QSizeF lastContentsSize() const;
 
+    void startDragging(QObject *dragSource, const content::DropData &dropData,
+                       Qt::DropActions allowedActions, const QPixmap &pixmap, const QPoint &offset);
+    void enterDrag(QDragEnterEvent *e, const QPoint &screenPos);
+    Qt::DropAction updateDragPosition(QDragMoveEvent *e, const QPoint &screenPos);
+    void updateDragAction(Qt::DropAction action);
+    void finishDragUpdate();
+    void endDragging(const QPoint &clientPos, const QPoint &screenPos);
+    void leaveDrag();
+
     // meant to be used within WebEngineCore only
     content::WebContents *webContents() const;