ui/views/drag_utils.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_VIEWS_DRAG_UTILS_H_
   6 #define UI_VIEWS_DRAG_UTILS_H_
   7
   8 #include "ui/base/dragdrop/drag_drop_types.h"
   9 #include "ui/gfx/native_widget_types.h"
  10 #include "ui/views/views_export.h"
  11
  12 namespace gfx {
  13 class Canvas;
  14 class Point;
  15 class Size;
  16 }
  17
  18 namespace ui {
  19 class OSExchangeData;
  20 }
  21
  22 namespace views {
  23 class Widget;
  24
  25 // Starts a drag operation. This blocks until the drag operation completes.
  26 VIEWS_EXPORT void RunShellDrag(gfx::NativeView view,
  27                                const ui::OSExchangeData& data,
  28                                const gfx::Point& location,
  29                                int operation,
  30                                ui::DragDropTypes::DragEventSource source);
  31
  32 // Returns a canvas that can be used to draw the drag image. Caller owns the
  33 // returned object. |widget| is Widget hosting the view being dragged.
  34 VIEWS_EXPORT gfx::Canvas* GetCanvasForDragImage(Widget* widget,
  35                                                 const gfx::Size& canvas_size);
  36
  37 }  // namespace views
  38
  39 #endif  // UI_VIEWS_DRAG_UTILS_H_