File: desktop_media_list_observer.h

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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_MEDIA_WEBRTC_DESKTOP_MEDIA_LIST_OBSERVER_H_
#define CHROME_BROWSER_MEDIA_WEBRTC_DESKTOP_MEDIA_LIST_OBSERVER_H_

class DesktopMediaList;

// Interface implemented by the desktop media picker dialog to receive
// notifications about changes in DesktopMediaList.
class DesktopMediaListObserver {
 public:
  virtual void OnSourceAdded(int index) = 0;
  virtual void OnSourceRemoved(int index) = 0;
  virtual void OnSourceMoved(int old_index, int new_index) = 0;
  virtual void OnSourceNameChanged(int index) = 0;
  virtual void OnSourceThumbnailChanged(int index) = 0;
  virtual void OnSourcePreviewChanged(size_t index) = 0;
  virtual void OnDelegatedSourceListSelection() = 0;
  virtual void OnDelegatedSourceListDismissed() = 0;

 protected:
  virtual ~DesktopMediaListObserver() = default;
};

#endif  // CHROME_BROWSER_MEDIA_WEBRTC_DESKTOP_MEDIA_LIST_OBSERVER_H_