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// Copyright 2016 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_MEDIA_COMBINED_DESKTOP_MEDIA_LIST_H_
#define CHROME_BROWSER_MEDIA_COMBINED_DESKTOP_MEDIA_LIST_H_
#include <vector>
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/media/desktop_media_list.h"
#include "chrome/browser/media/desktop_media_list_observer.h"
// The combined desktop media list of one or multiple input DesktopMediaLists.
// The combined list is the concatenation of the input lists. The front of
// combined list will be filled with the first input list, then follows with
// the second one and so on.
class CombinedDesktopMediaList : public DesktopMediaList,
public DesktopMediaListObserver {
public:
explicit CombinedDesktopMediaList(
std::vector<scoped_ptr<DesktopMediaList>>& media_lists);
~CombinedDesktopMediaList() override;
// DesktopMediaList interface.
void SetUpdatePeriod(base::TimeDelta period) override;
void SetThumbnailSize(const gfx::Size& thumbnail_size) override;
void SetViewDialogWindowId(content::DesktopMediaID dialog_id) override;
void StartUpdating(DesktopMediaListObserver* observer) override;
int GetSourceCount() const override;
const Source& GetSource(int index) const override;
private:
// DesktopMediaListObserver interface.
void OnSourceAdded(DesktopMediaList* list, int index) override;
void OnSourceRemoved(DesktopMediaList* list, int index) override;
void OnSourceMoved(DesktopMediaList* list,
int old_index,
int new_index) override;
void OnSourceNameChanged(DesktopMediaList* list, int index) override;
void OnSourceThumbnailChanged(DesktopMediaList* list, int index) override;
std::vector<scoped_ptr<DesktopMediaList>> media_lists_;
DesktopMediaListObserver* observer_ = nullptr;
DISALLOW_COPY_AND_ASSIGN(CombinedDesktopMediaList);
};
#endif // CHROME_BROWSER_MEDIA_COMBINED_DESKTOP_MEDIA_LIST_H_
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