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 const std::string& accept_button_label, 39 PermissionDecidedCallback callback); 40 41 // Cancels a specific infobar request. 42 void CancelInfoBarRequest(const PermissionRequestID& id); 43 44 // Called by the InfoBarDelegate to notify permission has been set. 45 // It'll notify and dismiss any other pending InfoBar request for the same 46 // |requesting_frame| and embedder. 47 void OnPermissionSet(const PermissionRequestID& id, 48 const GURL& requesting_frame, 49 const GURL& embedder, 50 bool update_content_setting, 51 bool allowed); 52 53 protected: 54 // content::NotificationObserver: 55 virtual void Observe(int type, 56 const content::NotificationSource& source, 57 const content::NotificationDetails& details) OVERRIDE; 58 59 private: 60 class PendingInfobarRequest; 61 class RequestEquals; 62 63 typedef std::vector<PendingInfobarRequest> PendingInfobarRequests; 64 65 // Returns true if a geolocation infobar is already visible for the tab 66 // corresponding to |id|. 67 bool AlreadyShowingInfoBarForTab(const PermissionRequestID& id) const; 68 69 // Shows the next pending infobar for the tab corresponding to |id|, if any. 70 // Note that this may not be the pending request whose ID is |id| if other 71 // requests are higher in the queue. If we can't show infobars because there 72 // is no InfoBarService for this tab, removes all queued requests for this 73 // tab. 74 void ShowQueuedInfoBarForTab(const PermissionRequestID& id); 75 76 void ClearPendingInfobarRequestsForTab(const PermissionRequestID& id); 77 78 void RegisterForInfoBarNotifications(InfoBarService* infobar_service); 79 void UnregisterForInfoBarNotifications(InfoBarService* infobar_service); 80 81 void UpdateContentSetting( 82 const GURL& requesting_frame, const GURL& embedder, bool allowed); 83 84 content::NotificationRegistrar registrar_; 85 86 Profile* const profile_; 87 ContentSettingsType type_; 88 PendingInfobarRequests pending_infobar_requests_; 89 bool in_shutdown_; 90 91 DISALLOW_COPY_AND_ASSIGN(PermissionQueueController); 92 }; 93 94 #endif // CHROME_BROWSER_CONTENT_SETTINGS_PERMISSION_QUEUE_CONTROLLER_H_ 95