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// Copyright 2017 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.
#ifndef CHROME_BROWSER_VR_TOOLBAR_HELPER_H_
#define CHROME_BROWSER_VR_TOOLBAR_HELPER_H_
#include "chrome/browser/vr/browser_ui_interface.h"
#include "chrome/browser/vr/model/toolbar_state.h"
class ToolbarModel;
class ToolbarModelDelegate;
namespace vr {
class BrowserUiInterface;
// This class houses an instance of ToolbarModel, and queries it when requested,
// passing a snapshot of the toolbar state to the UI when necessary.
class ToolbarHelper {
public:
ToolbarHelper(BrowserUiInterface* ui, ToolbarModelDelegate* delegate);
virtual ~ToolbarHelper();
// Poll ToolbarModel and post an update to the UI if state has changed.
void Update();
private:
BrowserUiInterface* ui_;
std::unique_ptr<ToolbarModel> toolbar_model_;
ToolbarState current_state_;
};
} // namespace vr
#endif // CHROME_BROWSER_VR_TOOLBAR_HELPER_H_