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// 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/renderer/render_view_impl.h"
#include "base/command_line.h"
#include "base/message_loop/message_loop.h"
#include "cc/trees/layer_tree_host.h"
#include "content/renderer/gpu/render_widget_compositor.h"
namespace content {
// Check content::TopControlsState and cc::TopControlsState are kept in sync.
COMPILE_ASSERT(int(SHOWN) == int(cc::SHOWN), mismatching_enums);
COMPILE_ASSERT(int(HIDDEN) == int(cc::HIDDEN), mismatching_enums);
COMPILE_ASSERT(int(BOTH) == int(cc::BOTH), mismatching_enums);
cc::TopControlsState ContentToCcTopControlsState(
TopControlsState state) {
return static_cast<cc::TopControlsState>(state);
}
// TODO(mvanouwerkerk): Stop calling this code path and delete it.
void RenderViewImpl::OnUpdateTopControlsState(bool enable_hiding,
bool enable_showing,
bool animate) {
// TODO(tedchoc): Investigate why messages are getting here before the
// compositor has been initialized.
LOG_IF(WARNING, !compositor_) << "OnUpdateTopControlsState was unhandled.";
if (compositor_) {
cc::TopControlsState constraints = cc::BOTH;
if (!enable_showing)
constraints = cc::HIDDEN;
if (!enable_hiding)
constraints = cc::SHOWN;
cc::TopControlsState current = cc::BOTH;
compositor_->UpdateTopControlsState(constraints, current, animate);
top_controls_constraints_ = constraints;
}
}
void RenderViewImpl::UpdateTopControlsState(TopControlsState constraints,
TopControlsState current,
bool animate) {
cc::TopControlsState constraints_cc =
ContentToCcTopControlsState(constraints);
cc::TopControlsState current_cc = ContentToCcTopControlsState(current);
if (compositor_)
compositor_->UpdateTopControlsState(constraints_cc, current_cc, animate);
top_controls_constraints_ = constraints_cc;
}
void RenderViewImpl::didScrollWithKeyboard(const blink::WebSize& delta) {
if (delta.height == 0)
return;
if (compositor_) {
cc::TopControlsState current = delta.height < 0 ? cc::SHOWN : cc::HIDDEN;
compositor_->UpdateTopControlsState(top_controls_constraints_,
current,
true);
}
}
} // namespace content
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