1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_PERMISSION_QUEUE_CONTROLLER_H_ 6 #define CHROME_BROWSER_CONTENT_SETTINGS_PERMISSION_QUEUE_CONTROLLER_H_ 7 8 #include "base/bind.h" 9 #include "chrome/common/content_settings_types.h" 10 #include "content/public/browser/notification_observer.h" 11 #include "content/public/browser/notification_registrar.h" 12 13 class GURL; 14 class PermissionRequestID; 15 class InfoBarService; 16 class Profile; 17 18 // This class controls an infobar queue per profile, and it's used by 19 // GeolocationPermissionContext, and so on. 20 // An alternate approach would be to have this queue per tab, and use 21 // notifications to broadcast when permission is set / listen to notification to 22 // cancel pending requests. This may be specially useful if there are other 23 // things listening for such notifications. 24 // For the time being this class is self-contained and it doesn't seem pulling 25 // the notification infrastructure would simplify. 26 class PermissionQueueController : public content::NotificationObserver { 27 public: 28 typedef base::Callback<void(bool /* allowed */)> PermissionDecidedCallback; 29 30 PermissionQueueController(Profile* profile, ContentSettingsType type); 31 virtual ~PermissionQueueController(); 32 33 // The InfoBar will be displayed immediately if the tab is not already 34 // displaying one, otherwise it'll be queued. 35 void CreateInfoBarRequest(const PermissionRequestID& id, 36 const GURL& requesting_frame, 37 const GURL& embedder, 38 PermissionDecidedCallback callback); 39 40 // Cancels a specific infobar request. 41 void CancelInfoBarRequest(const PermissionRequestID& id); 42 43 // Called by the InfoBarDelegate to notify permission has been set. 44 // It'll notify and dismiss any other pending InfoBar request for the same 45 // |requesting_frame| and embedder. 46 void OnPermissionSet(const PermissionRequestID& id, 47 const GURL& requesting_frame, 48 const GURL& embedder, 49 bool update_content_setting, 50 bool allowed); 51 52 protected: 53 // content::NotificationObserver: 54 virtual void Observe(int type, 55 const content::NotificationSource& source, 56 const content::NotificationDetails& details) OVERRIDE; 57 58 private: 59 class PendingInfoBarRequest; 60 class RequestEquals; 61 62 typedef std::vector<PendingInfoBarRequest> PendingInfoBarRequests; 63 64 // Returns true if a geolocation infobar is already visible for the tab 65 // corresponding to |id|. 66 bool AlreadyShowingInfoBarForTab(const PermissionRequestID& id) const; 67 68 // Shows the next pending infobar for the tab corresponding to |id|, if any. 69 // Note that this may not be the pending request whose ID is |id| if other 70 // requests are higher in the queue. If we can't show infobars because there 71 // is no InfoBarService for this tab, removes all queued requests for this 72 // tab. 73 void ShowQueuedInfoBarForTab(const PermissionRequestID& id); 74 75 void ClearPendingInfoBarRequestsForTab(const PermissionRequestID& id); 76 77 void RegisterForInfoBarNotifications(InfoBarService* infobar_service); 78 void UnregisterForInfoBarNotifications(InfoBarService* infobar_service); 79 80 void UpdateContentSetting( 81 const GURL& requesting_frame, const GURL& embedder, bool allowed); 82 83 content::NotificationRegistrar registrar_; 84 85 Profile* const profile_; 86 ContentSettingsType type_; 87 PendingInfoBarRequests pending_infobar_requests_; 88 bool in_shutdown_; 89 90 DISALLOW_COPY_AND_ASSIGN(PermissionQueueController); 91 }; 92 93 #endif // CHROME_BROWSER_CONTENT_SETTINGS_PERMISSION_QUEUE_CONTROLLER_H_ 94