chromium/chrome/browser/media/webrtc/media_stream_focus_delegate.h

// Copyright 2021 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_MEDIA_STREAM_FOCUS_DELEGATE_H_
#define CHROME_BROWSER_MEDIA_WEBRTC_MEDIA_STREAM_FOCUS_DELEGATE_H_

#include "build/build_config.h"

#if BUILDFLAG(IS_ANDROID)
#error "Unsupported on Android."
#endif  // BUILDFLAG(IS_ANDROID)

#include "base/time/time.h"
#include "chrome/browser/bad_message.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "content/public/browser/desktop_media_id.h"
#include "content/public/browser/web_contents.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"

// When tab/window-capture is initiated, a window of opportunity opens,
// during which the render process can instruct the browser process as to
// whether to focus the tab/window or not.
// The window of opportunity is closed when either:
// (a) The render process sends its decision.
// (b) After 1s elapses (MediaStreamManager independently calls SetFocus).
// (c) The user changes the focused tab.
// (d) The user changes the activated window.
class MediaStreamFocusDelegate : public TabStripModelObserver { … };

#endif  // CHROME_BROWSER_MEDIA_WEBRTC_MEDIA_STREAM_FOCUS_DELEGATE_H_