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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.
#ifndef CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
#define CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequenced_task_runner.h"
#include "chrome/browser/media/desktop_media_list_base.h"
#include "content/public/browser/desktop_media_id.h"
namespace webrtc {
class ScreenCapturer;
class WindowCapturer;
}
// Implementation of DesktopMediaList that shows native screens and
// native windows.
class NativeDesktopMediaList : public DesktopMediaListBase {
public:
// Caller may pass NULL for either of the arguments in case when only some
// types of sources the model should be populated with (e.g. it will only
// contain windows, if |screen_capturer| is NULL).
NativeDesktopMediaList(
scoped_ptr<webrtc::ScreenCapturer> screen_capturer,
scoped_ptr<webrtc::WindowCapturer> window_capturer);
~NativeDesktopMediaList() override;
private:
class Worker;
friend class Worker;
// Refresh() posts a task for the |worker_| to update list of windows and get
// thumbnails. Then |worker_| first posts tasks for
// UpdateObserverSourcesList() with fresh list of sources, then follows with
// OnSourceThumbnail() for each changed thumbnail and then calls
// DelayLaunchNextRefersh() at the end.
void Refresh() override;
void OnSourceThumbnail(int index, const gfx::ImageSkia& image);
// Task runner used for the |worker_|.
scoped_refptr<base::SequencedTaskRunner> capture_task_runner_;
// An object that does all the work of getting list of sources on a background
// thread (see |capture_task_runner_|). Destroyed on |capture_task_runner_|
// after the model is destroyed.
scoped_ptr<Worker> worker_;
base::WeakPtrFactory<NativeDesktopMediaList> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(NativeDesktopMediaList);
};
#endif // CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
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