summaryrefslogtreecommitdiffstats
path: root/views/widget/drop_target_win.h
diff options
context:
space:
mode:
Diffstat (limited to 'views/widget/drop_target_win.h')
-rw-r--r--views/widget/drop_target_win.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/views/widget/drop_target_win.h b/views/widget/drop_target_win.h
new file mode 100644
index 0000000..d771c07
--- /dev/null
+++ b/views/widget/drop_target_win.h
@@ -0,0 +1,53 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef VIEWS_WIDGET_DROP_TARGET_WIN_H_
+#define VIEWS_WIDGET_DROP_TARGET_WIN_H_
+
+#include "base/base_drop_target.h"
+#include "views/widget/drop_helper.h"
+
+namespace views {
+
+class RootView;
+class View;
+
+// DropTargetWin takes care of managing drag and drop for WidgetWin. It
+// converts Windows OLE drop messages into Views drop messages.
+//
+// DropTargetWin uses DropHelper to manage the appropriate view to target
+// drop messages at.
+class DropTargetWin : public BaseDropTarget {
+ public:
+ explicit DropTargetWin(RootView* root_view);
+ virtual ~DropTargetWin();
+
+ // If a drag and drop is underway and view is the current drop target, the
+ // drop target is set to null.
+ // This is invoked when a View is removed from the RootView to make sure
+ // we don't target a view that was removed during dnd.
+ void ResetTargetViewIfEquals(View* view);
+
+ protected:
+ virtual DWORD OnDragOver(IDataObject* data_object,
+ DWORD key_state,
+ POINT cursor_position,
+ DWORD effect);
+
+ virtual void OnDragLeave(IDataObject* data_object);
+
+ virtual DWORD OnDrop(IDataObject* data_object,
+ DWORD key_state,
+ POINT cursor_position,
+ DWORD effect);
+
+ private:
+ views::DropHelper helper_;
+
+ DISALLOW_COPY_AND_ASSIGN(DropTargetWin);
+};
+
+} // namespace views
+
+#endif // VIEWS_WIDGET_DROP_TARGET_WIN_H_