chrome/browser/media/router/media_source_helper.h

// Copyright 2015 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_ROUTER_MEDIA_SOURCE_HELPER_H_
#define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SOURCE_HELPER_H_

#include <string>

#include "chrome/browser/media/router/media_source.h"

class GURL;

namespace content {
class WebContents;
}

namespace media_router {

// Helper library for protocol-specific media source object creation.
// Returns MediaSource URI depending on the type of source.
MediaSource MediaSourceForTab(int tab_id);
MediaSource MediaSourceForTabContentRemoting(content::WebContents* contents);
MediaSource MediaSourceForDesktop();
MediaSource MediaSourceForPresentationUrl(const GURL& presentation_url);

// Returns true if |source| outputs its content via mirroring.
bool IsDesktopMirroringMediaSource(const MediaSource& source);
bool IsTabMirroringMediaSource(const MediaSource& source);
bool IsMirroringMediaSource(const MediaSource& source);

// Parses the |source| and returns the SessionTabHelper tab ID referencing a
// source tab. Returns a non-positive value on error.
int TabIdFromMediaSource(const MediaSource& source);

// Checks that |source| is a parseable URN and is of a known type.
// Does not deeper protocol-level syntax checks.
bool IsValidMediaSource(const MediaSource& source);

// Returns true if |url| is a valid presentation URL.
bool IsValidPresentationUrl(const GURL& url);

}  // namespace media_router

#endif  // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SOURCE_HELPER_H_