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// Copyright (c) 2012 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_MEDIA_STREAM_DEVICES_CONTROLLER_H_
#define CHROME_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_
#include <map>
#include <string>
#include "chrome/browser/ui/website_settings/permission_bubble_request.h"
#include "components/content_settings/core/common/content_settings.h"
#include "content/public/browser/web_contents_delegate.h"
class Profile;
class TabSpecificContentSettings;
namespace content {
class WebContents;
}
namespace user_prefs {
class PrefRegistrySyncable;
}
class MediaStreamDevicesController : public PermissionBubbleRequest {
public:
MediaStreamDevicesController(content::WebContents* web_contents,
const content::MediaStreamRequest& request,
const content::MediaResponseCallback& callback);
~MediaStreamDevicesController() override;
// Registers the prefs backing the audio and video policies.
static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
// Public methods to be called by MediaStreamInfoBarDelegate;
bool IsAskingForAudio() const;
bool IsAskingForVideo() const;
const std::string& GetSecurityOriginSpec() const;
// PermissionBubbleRequest:
int GetIconID() const override;
base::string16 GetMessageText() const override;
base::string16 GetMessageTextFragment() const override;
bool HasUserGesture() const override;
GURL GetRequestingHostname() const override;
void PermissionGranted() override;
void PermissionDenied() override;
void Cancelled() override;
void RequestFinished() override;
private:
// Returns a list of devices available for the request for the given
// audio/video permission settings.
content::MediaStreamDevices GetDevices(ContentSetting audio_setting,
ContentSetting video_setting);
// Runs |callback_| with the given audio/video permission settings. If neither
// |audio_setting| or |video_setting| is set to allow, |denial_reason| should
// be set to the error to be reported when running |callback_|.
void RunCallback(ContentSetting audio_setting,
ContentSetting video_setting,
content::MediaStreamRequestResult denial_reason);
// Store the permission to use media devices for the origin of the request.
// This is triggered when the user makes a decision.
void StorePermission(ContentSetting new_audio_setting,
ContentSetting new_video_setting) const;
// Called when the permission has been set to update the
// TabSpecificContentSettings.
void UpdateTabSpecificContentSettings(ContentSetting audio_setting,
ContentSetting video_setting) const;
// Returns the content settings for the given content type and request.
ContentSetting GetContentSetting(
ContentSettingsType content_type,
const content::MediaStreamRequest& request,
content::MediaStreamRequestResult* denial_reason) const;
// Returns the content setting that should apply given an old content setting
// and a user decision that has been made. If a user isn't being asked for one
// of audio/video then we shouldn't change that setting, even if they accept
// the dialog.
ContentSetting GetNewSetting(ContentSettingsType content_type,
ContentSetting old_setting,
ContentSetting user_decision) const;
// Returns true if clicking allow on the dialog should give access to the
// requested devices.
bool IsUserAcceptAllowed(ContentSettingsType content_type) const;
// The audio/video content settings BEFORE the user clicks accept/deny.
ContentSetting old_audio_setting_;
ContentSetting old_video_setting_;
content::WebContents* web_contents_;
// The owner of this class needs to make sure it does not outlive the profile.
Profile* profile_;
// Weak pointer to the tab specific content settings of the tab for which the
// MediaStreamDevicesController was created. The tab specific content
// settings are associated with a the web contents of the tab. The
// MediaStreamDeviceController must not outlive the web contents for which it
// was created.
TabSpecificContentSettings* content_settings_;
// The original request for access to devices.
const content::MediaStreamRequest request_;
// The callback that needs to be Run to notify WebRTC of whether access to
// audio/video devices was granted or not.
content::MediaResponseCallback callback_;
DISALLOW_COPY_AND_ASSIGN(MediaStreamDevicesController);
};
#endif // CHROME_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_
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