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      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_impl.h"
      6 
      7 #include "base/command_line.h"
      8 #include "base/message_loop/message_loop.h"
      9 #include "cc/trees/layer_tree_host.h"
     10 #include "content/common/view_messages.h"
     11 #include "content/renderer/gpu/render_widget_compositor.h"
     12 #include "content/renderer/media/video_capture_impl_manager.h"
     13 #include "content/renderer/render_thread_impl.h"
     14 #include "third_party/WebKit/public/web/WebView.h"
     15 
     16 namespace content {
     17 
     18 // Check content::TopControlsState and cc::TopControlsState are kept in sync.
     19 COMPILE_ASSERT(int(SHOWN) == int(cc::SHOWN), mismatching_enums);
     20 COMPILE_ASSERT(int(HIDDEN) == int(cc::HIDDEN), mismatching_enums);
     21 COMPILE_ASSERT(int(BOTH) == int(cc::BOTH), mismatching_enums);
     22 
     23 cc::TopControlsState ContentToCcTopControlsState(
     24     TopControlsState state) {
     25   return static_cast<cc::TopControlsState>(state);
     26 }
     27 
     28 // TODO(mvanouwerkerk): Stop calling this code path and delete it.
     29 void RenderViewImpl::OnUpdateTopControlsState(bool enable_hiding,
     30                                               bool enable_showing,
     31                                               bool animate) {
     32   // TODO(tedchoc): Investigate why messages are getting here before the
     33   //                compositor has been initialized.
     34   LOG_IF(WARNING, !compositor_) << "OnUpdateTopControlsState was unhandled.";
     35   if (compositor_) {
     36     cc::TopControlsState constraints = cc::BOTH;
     37     if (!enable_showing)
     38       constraints = cc::HIDDEN;
     39     if (!enable_hiding)
     40       constraints = cc::SHOWN;
     41     cc::TopControlsState current = cc::BOTH;
     42     compositor_->UpdateTopControlsState(constraints, current, animate);
     43     top_controls_constraints_ = constraints;
     44   }
     45 }
     46 
     47 void RenderViewImpl::UpdateTopControlsState(TopControlsState constraints,
     48                                             TopControlsState current,
     49                                             bool animate) {
     50   cc::TopControlsState constraints_cc =
     51       ContentToCcTopControlsState(constraints);
     52   cc::TopControlsState current_cc = ContentToCcTopControlsState(current);
     53   if (compositor_)
     54     compositor_->UpdateTopControlsState(constraints_cc, current_cc, animate);
     55   top_controls_constraints_ = constraints_cc;
     56 }
     57 
     58 void RenderViewImpl::didScrollWithKeyboard(const blink::WebSize& delta) {
     59   if (delta.height == 0)
     60     return;
     61   if (compositor_) {
     62     cc::TopControlsState current = delta.height < 0 ? cc::SHOWN : cc::HIDDEN;
     63     compositor_->UpdateTopControlsState(top_controls_constraints_,
     64                                         current,
     65                                         true);
     66   }
     67 }
     68 
     69 void RenderViewImpl::OnExtractSmartClipData(const gfx::Rect& rect) {
     70   blink::WebString clip_text;
     71   blink::WebString clip_html;
     72   blink::WebRect clip_rect;
     73   webview()->extractSmartClipData(rect, clip_text, clip_html, clip_rect);
     74   Send(new ViewHostMsg_SmartClipDataExtracted(
     75       routing_id_, clip_text, clip_html, clip_rect));
     76 }
     77 
     78 void RenderViewImpl::OnPauseVideoCaptureStream() {
     79 #if defined(ENABLE_WEBRTC)
     80   RenderThreadImpl::current()->video_capture_impl_manager()->
     81       SuspendDevices(true);
     82 #endif
     83 }
     84 
     85 void RenderViewImpl::OnResumeVideoCaptureStream() {
     86 #if defined(ENABLE_WEBRTC)
     87   RenderThreadImpl::current()->video_capture_impl_manager()->
     88       SuspendDevices(false);
     89 #endif
     90 }
     91 
     92 }  // namespace content
     93