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// Copyright 2013 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/delegated_frame_evictor.h"
#include "base/logging.h"
namespace content {
DelegatedFrameEvictor::DelegatedFrameEvictor(
DelegatedFrameEvictorClient* client)
: client_(client), has_frame_(false), visible_(false) {
}
DelegatedFrameEvictor::~DelegatedFrameEvictor() { DiscardedFrame(); }
void DelegatedFrameEvictor::SwappedFrame(bool visible) {
visible_ = visible;
has_frame_ = true;
RendererFrameManager::GetInstance()->AddFrame(this, visible);
}
void DelegatedFrameEvictor::DiscardedFrame() {
RendererFrameManager::GetInstance()->RemoveFrame(this);
has_frame_ = false;
}
void DelegatedFrameEvictor::SetVisible(bool visible) {
if (visible_ == visible)
return;
visible_ = visible;
if (has_frame_) {
if (visible) {
LockFrame();
} else {
UnlockFrame();
}
}
}
void DelegatedFrameEvictor::LockFrame() {
DCHECK(has_frame_);
RendererFrameManager::GetInstance()->LockFrame(this);
}
void DelegatedFrameEvictor::UnlockFrame() {
DCHECK(has_frame_);
RendererFrameManager::GetInstance()->UnlockFrame(this);
}
void DelegatedFrameEvictor::EvictCurrentFrame() {
client_->EvictDelegatedFrame();
}
} // namespace content
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