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/renderer/gpu/render_widget_compositor.h" 11 12namespace content { 13 14// Check content::TopControlsState and cc::TopControlsState are kept in sync. 15COMPILE_ASSERT(int(SHOWN) == int(cc::SHOWN), mismatching_enums); 16COMPILE_ASSERT(int(HIDDEN) == int(cc::HIDDEN), mismatching_enums); 17COMPILE_ASSERT(int(BOTH) == int(cc::BOTH), mismatching_enums); 18 19cc::TopControlsState ContentToCcTopControlsState( 20 TopControlsState state) { 21 return static_cast<cc::TopControlsState>(state); 22} 23 24// TODO(mvanouwerkerk): Stop calling this code path and delete it. 25void RenderViewImpl::OnUpdateTopControlsState(bool enable_hiding, 26 bool enable_showing, 27 bool animate) { 28 // TODO(tedchoc): Investigate why messages are getting here before the 29 // compositor has been initialized. 30 LOG_IF(WARNING, !compositor_) << "OnUpdateTopControlsState was unhandled."; 31 if (compositor_) { 32 cc::TopControlsState constraints = cc::BOTH; 33 if (!enable_showing) 34 constraints = cc::HIDDEN; 35 if (!enable_hiding) 36 constraints = cc::SHOWN; 37 cc::TopControlsState current = cc::BOTH; 38 compositor_->UpdateTopControlsState(constraints, current, animate); 39 top_controls_constraints_ = constraints; 40 } 41} 42 43void RenderViewImpl::UpdateTopControlsState(TopControlsState constraints, 44 TopControlsState current, 45 bool animate) { 46 cc::TopControlsState constraints_cc = 47 ContentToCcTopControlsState(constraints); 48 cc::TopControlsState current_cc = ContentToCcTopControlsState(current); 49 if (compositor_) 50 compositor_->UpdateTopControlsState(constraints_cc, current_cc, animate); 51 top_controls_constraints_ = constraints_cc; 52} 53 54void RenderViewImpl::didScrollWithKeyboard(const WebKit::WebSize& delta) { 55 if (delta.height == 0) 56 return; 57 if (compositor_) { 58 cc::TopControlsState current = delta.height < 0 ? cc::SHOWN : cc::HIDDEN; 59 compositor_->UpdateTopControlsState(top_controls_constraints_, 60 current, 61 true); 62 } 63} 64 65} // namespace content 66