Add content::RenderWidgetHost::MouseEventCallback

content/browser/renderer_host/render_widget_host_impl.cc

 // Copyright (c) 2012 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.
 
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 
 #include <math.h>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 998 matching lines @@
 void RenderWidgetHostImpl::ForwardMouseEvent(const WebMouseEvent& mouse_event) {
   ForwardMouseEventWithLatencyInfo(
       MouseEventWithLatencyInfo(mouse_event,
                                 CreateRWHLatencyInfoIfNotExist(NULL)));
 }
 
 void RenderWidgetHostImpl::ForwardMouseEventWithLatencyInfo(
     const MouseEventWithLatencyInfo& mouse_event) {
   TRACE_EVENT2("input", "RenderWidgetHostImpl::ForwardMouseEvent",
                "x", mouse_event.event.x, "y", mouse_event.event.y);
+
+  for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
+    if (mouse_event_callbacks_[i].Run(mouse_event.event))
+      return;
+  }
+
   input_router_->SendMouseEvent(mouse_event);
 }
 
 void RenderWidgetHostImpl::OnPointerEventActivate() {
 }
 
 void RenderWidgetHostImpl::ForwardWheelEvent(
     const WebMouseWheelEvent& wheel_event) {
   ForwardWheelEventWithLatencyInfo(
       MouseWheelEventWithLatencyInfo(wheel_event,
@@ skipping 103 matching lines @@
     const KeyPressEventCallback& callback) {
   for (size_t i = 0; i < key_press_event_callbacks_.size(); ++i) {
     if (key_press_event_callbacks_[i].Equals(callback)) {
       key_press_event_callbacks_.erase(
           key_press_event_callbacks_.begin() + i);
       return;
     }
   }
 }
 
+void RenderWidgetHostImpl::AddMouseEventCallback(
+    const MouseEventCallback& callback) {
+  mouse_event_callbacks_.push_back(callback);
+}
+
+void RenderWidgetHostImpl::RemoveMouseEventCallback(
+    const MouseEventCallback& callback) {
+  for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
+    if (mouse_event_callbacks_[i].Equals(callback)) {
+      mouse_event_callbacks_.erase(mouse_event_callbacks_.begin() + i);
+      return;
+    }
+  }
+}
+
 void RenderWidgetHostImpl::GetWebScreenInfo(WebKit::WebScreenInfo* result) {
   TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::GetWebScreenInfo");
   if (GetView())
     static_cast<RenderWidgetHostViewPort*>(GetView())->GetScreenInfo(result);
   else
     RenderWidgetHostViewPort::GetDefaultScreenInfo(result);
   screen_info_out_of_date_ = false;
 }
 
 const NativeWebKeyboardEvent*
@@ skipping 1337 matching lines @@
     int process_id = (b->first.second >> 32) & 0xffffffff;
     RenderWidgetHost* rwh =
         RenderWidgetHost::FromID(process_id, routing_id);
     if (!rwh)
       continue;
     RenderWidgetHostImpl::From(rwh)->FrameSwapped(latency_info);
   }
 }
 
 }  // namespace content