DevTools: backend part of the color picker (behind experiment).

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 <set>
 #include <utility>
 
@@ skipping 844 matching lines @@
       CreateRWHLatencyInfoIfNotExist(&ui_latency, mouse_event.type);
 
   for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
     if (mouse_event_callbacks_[i].Run(mouse_event))
       return;
   }
 
   if (IgnoreInputEvents())
     return;
 
+  if (!intercepting_mouse_callback_.is_null()) {

[jdduke (slow), 2014/08/15 16:49:48]

Can you not use the existing AddMouseEventCallback/RemoveMouseEventCallback
interface?

[pfeldman, 2014/08/15 19:32:33]

I can. Was not expecting things to be so simple. Thanks.

+    intercepting_mouse_callback_.Run(mouse_event);
+    return;
+  }
+
   if (touch_emulator_ && touch_emulator_->HandleMouseEvent(mouse_event))
     return;
 
   input_router_->SendMouseEvent(MouseEventWithLatencyInfo(mouse_event,
                                                           latency_info));
 }
 
 void RenderWidgetHostImpl::OnPointerEventActivate() {
 }
 
@@ skipping 741 matching lines @@
   if (enabled) {
     if (!touch_emulator_)
       touch_emulator_.reset(new TouchEmulator(this));
     touch_emulator_->Enable(allow_pinch);
   } else {
     if (touch_emulator_)
       touch_emulator_->Disable();
   }
 }
 
+void RenderWidgetHostImpl::SetInterceptingMouseCallback(
+    const InterceptingMouseCallback& callback) {
+  intercepting_mouse_callback_ = callback;
+}
+
 void RenderWidgetHostImpl::OnTextInputStateChanged(
     const ViewHostMsg_TextInputState_Params& params) {
   if (view_)
     view_->TextInputStateChanged(params);
 }
 
 #if defined(OS_MACOSX) || defined(USE_AURA)
 void RenderWidgetHostImpl::OnImeCompositionRangeChanged(
     const gfx::Range& range,
     const std::vector<gfx::Rect>& character_bounds) {
@@ skipping 693 matching lines @@
 }
 #endif
 
 SkColorType RenderWidgetHostImpl::PreferredReadbackFormat() {
   if (view_)
     return view_->PreferredReadbackFormat();
   return kN32_SkColorType;
 }
 
 }  // namespace content