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 #include "content/renderer/render_view_mouse_lock_dispatcher.h" 6 7 #include "content/common/view_messages.h" 8 #include "content/renderer/render_view_impl.h" 9 #include "third_party/WebKit/public/web/WebFrame.h" 10 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h" 11 #include "third_party/WebKit/public/web/WebView.h" 12 #include "third_party/WebKit/public/web/WebWidget.h" 13 14 using blink::WebUserGestureIndicator; 15 16 namespace content { 17 RenderViewMouseLockDispatcher(RenderViewImpl * render_view_impl)18RenderViewMouseLockDispatcher::RenderViewMouseLockDispatcher( 19 RenderViewImpl* render_view_impl) 20 : RenderViewObserver(render_view_impl), 21 render_view_impl_(render_view_impl) { 22 } 23 ~RenderViewMouseLockDispatcher()24RenderViewMouseLockDispatcher::~RenderViewMouseLockDispatcher() { 25 } 26 SendLockMouseRequest(bool unlocked_by_target)27void RenderViewMouseLockDispatcher::SendLockMouseRequest( 28 bool unlocked_by_target) { 29 bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture(); 30 31 Send(new ViewHostMsg_LockMouse(routing_id(), user_gesture, unlocked_by_target, 32 false)); 33 } 34 SendUnlockMouseRequest()35void RenderViewMouseLockDispatcher::SendUnlockMouseRequest() { 36 Send(new ViewHostMsg_UnlockMouse(routing_id())); 37 } 38 OnMessageReceived(const IPC::Message & message)39bool RenderViewMouseLockDispatcher::OnMessageReceived( 40 const IPC::Message& message) { 41 bool handled = true; 42 IPC_BEGIN_MESSAGE_MAP(RenderViewMouseLockDispatcher, message) 43 IPC_MESSAGE_HANDLER(ViewMsg_LockMouse_ACK, OnLockMouseACK) 44 IPC_MESSAGE_FORWARD(ViewMsg_MouseLockLost, 45 static_cast<MouseLockDispatcher*>(this), 46 MouseLockDispatcher::OnMouseLockLost) 47 IPC_MESSAGE_UNHANDLED(handled = false) 48 IPC_END_MESSAGE_MAP() 49 return handled; 50 } 51 OnLockMouseACK(bool succeeded)52void RenderViewMouseLockDispatcher::OnLockMouseACK(bool succeeded) { 53 // Notify the base class. 54 MouseLockDispatcher::OnLockMouseACK(succeeded); 55 56 // Mouse Lock removes the system cursor and provides all mouse motion as 57 // .movementX/Y values on events all sent to a fixed target. This requires 58 // content to specifically request the mode to be entered. 59 // Mouse Capture is implicitly given for the duration of a drag event, and 60 // sends all mouse events to the initial target of the drag. 61 // If Lock is entered it supercedes any in progress Capture. 62 if (succeeded && render_view_impl_->webwidget()) 63 render_view_impl_->webwidget()->mouseCaptureLost(); 64 } 65 66 } // namespace content 67