content/common/drag_messages.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 // IPC messages for drag and drop.
   6 // Multiply-included message file, hence no include guard.
   7
   8 #include "content/common/drag_event_source_info.h"
   9 #include "content/public/common/common_param_traits.h"
  10 #include "content/public/common/drop_data.h"
  11 #include "ipc/ipc_message_macros.h"
  12 #include "third_party/skia/include/core/SkBitmap.h"
  13 #include "third_party/WebKit/public/web/WebDragOperation.h"
  14 #include "ui/gfx/point.h"
  15 #include "ui/gfx/vector2d.h"
  16
  17 #define IPC_MESSAGE_START DragMsgStart
  18
  19 // Messages sent from the browser to the renderer.
  20
  21 IPC_MESSAGE_ROUTED5(DragMsg_TargetDragEnter,
  22                     content::DropData /* drop_data */,
  23                     gfx::Point /* client_pt */,
  24                     gfx::Point /* screen_pt */,
  25                     WebKit::WebDragOperationsMask /* ops_allowed */,
  26                     int /* key_modifiers */)
  27
  28 IPC_MESSAGE_ROUTED4(DragMsg_TargetDragOver,
  29                     gfx::Point /* client_pt */,
  30                     gfx::Point /* screen_pt */,
  31                     WebKit::WebDragOperationsMask /* ops_allowed */,
  32                     int /* key_modifiers */)
  33
  34 IPC_MESSAGE_ROUTED0(DragMsg_TargetDragLeave)
  35
  36 IPC_MESSAGE_ROUTED3(DragMsg_TargetDrop,
  37                     gfx::Point /* client_pt */,
  38                     gfx::Point /* screen_pt */,
  39                     int /* key_modifiers */)
  40
  41 // Notifies the renderer of updates in mouse position of an in-progress
  42 // drag.  if |ended| is true, then the user has ended the drag operation.
  43 IPC_MESSAGE_ROUTED4(DragMsg_SourceEndedOrMoved,
  44                     gfx::Point /* client_pt */,
  45                     gfx::Point /* screen_pt */,
  46                     bool /* ended */,
  47                     WebKit::WebDragOperation /* drag_operation */)
  48
  49 // Notifies the renderer that the system DoDragDrop call has ended.
  50 IPC_MESSAGE_ROUTED0(DragMsg_SourceSystemDragEnded)
  51
  52 // Messages sent from the renderer to the browser.
  53
  54 // Used to tell the parent the user started dragging in the content area. The
  55 // DropData struct contains contextual information about the pieces of the
  56 // page the user dragged. The parent uses this notification to initiate a
  57 // drag session at the OS level.
  58 IPC_MESSAGE_ROUTED5(DragHostMsg_StartDragging,
  59                     content::DropData /* drop_data */,
  60                     WebKit::WebDragOperationsMask /* ops_allowed */,
  61                     SkBitmap /* image */,
  62                     gfx::Vector2d /* image_offset */,
  63                     content::DragEventSourceInfo /* event_info */)
  64
  65 // The page wants to update the mouse cursor during a drag & drop operation.
  66 // |is_drop_target| is true if the mouse is over a valid drop target.
  67 IPC_MESSAGE_ROUTED1(DragHostMsg_UpdateDragCursor,
  68                     WebKit::WebDragOperation /* drag_operation */)
  69
  70 // Notifies the host that the renderer finished a drop operation.
  71 IPC_MESSAGE_ROUTED0(DragHostMsg_TargetDrop_ACK)