| // 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 CONTENT_CHILD_PERMISSIONS_PERMISSION_DISPATCHER_H_ |
| #define CONTENT_CHILD_PERMISSIONS_PERMISSION_DISPATCHER_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/callback_forward.h" |
| #include "base/containers/scoped_ptr_hash_map.h" |
| #include "base/macros.h" |
| #include "content/child/permissions/permission_observers_registry.h" |
| #include "third_party/WebKit/public/platform/modules/permissions/WebPermissionClient.h" |
| #include "third_party/WebKit/public/platform/modules/permissions/permission.mojom.h" |
| |
| namespace content { |
| |
| class ServiceRegistry; |
| |
| // The PermissionDispatcher is a layer between Blink and the Mojo |
| // PermissionService. It implements blink::WebPermissionClient. It is being used |
| // from workers and frames independently. When called outside of the main |
| // thread, QueryPermissionForWorker is meant to be called. It will handle the |
| // thread jumping. |
| class PermissionDispatcher : public blink::WebPermissionClient, |
| public PermissionObserversRegistry { |
| public: |
| // Returns whether the given WebPermissionType is observable. Some types have |
| // static values that never changes. |
| static bool IsObservable(blink::WebPermissionType type); |
| |
| // The caller must guarantee that |service_registry| will have a lifetime |
| // larger than this instance of PermissionDispatcher. |
| explicit PermissionDispatcher(ServiceRegistry* service_registry); |
| ~PermissionDispatcher() override; |
| |
| // blink::WebPermissionClient implementation. |
| void queryPermission(blink::WebPermissionType type, |
| const blink::WebURL& origin, |
| blink::WebPermissionCallback* callback) override; |
| void requestPermission(blink::WebPermissionType, |
| const blink::WebURL& origin, |
| blink::WebPermissionCallback* callback) override; |
| void requestPermissions( |
| const blink::WebVector<blink::WebPermissionType>& types, |
| const blink::WebURL& origin, |
| blink::WebPermissionsCallback* callback) override; |
| void revokePermission(blink::WebPermissionType, |
| const blink::WebURL& origin, |
| blink::WebPermissionCallback* callback) override; |
| void startListening(blink::WebPermissionType type, |
| const blink::WebURL& origin, |
| blink::WebPermissionObserver* observer) override; |
| void stopListening(blink::WebPermissionObserver* observer) override; |
| |
| // The following methods must be called by workers on the main thread. |
| void QueryPermissionForWorker(blink::WebPermissionType type, |
| const std::string& origin, |
| blink::WebPermissionCallback* callback, |
| int worker_thread_id); |
| void RequestPermissionForWorker(blink::WebPermissionType type, |
| const std::string& origin, |
| blink::WebPermissionCallback* callback, |
| int worker_thread_id); |
| void RequestPermissionsForWorker( |
| const blink::WebVector<blink::WebPermissionType>& types, |
| const std::string& origin, |
| blink::WebPermissionsCallback* callback, |
| int worker_thread_id); |
| void RevokePermissionForWorker(blink::WebPermissionType type, |
| const std::string& origin, |
| blink::WebPermissionCallback* callback, |
| int worker_thread_id); |
| void StartListeningForWorker( |
| blink::WebPermissionType type, |
| const std::string& origin, |
| int worker_thread_id, |
| const base::Callback<void(blink::WebPermissionStatus)>& callback); |
| void GetNextPermissionChangeForWorker( |
| blink::WebPermissionType type, |
| const std::string& origin, |
| blink::WebPermissionStatus status, |
| int worker_thread_id, |
| const base::Callback<void(blink::WebPermissionStatus)>& callback); |
| |
| private: |
| using PermissionCallbackMap = |
| base::ScopedPtrHashMap<uintptr_t, |
| std::unique_ptr<blink::WebPermissionCallback>>; |
| using PermissionsCallbackMap = |
| base::ScopedPtrHashMap<uintptr_t, |
| std::unique_ptr<blink::WebPermissionsCallback>>; |
| |
| // Runs the given |callback| with |status| as a parameter. It has to be run |
| // on a worker thread. |
| static void RunPermissionCallbackOnWorkerThread( |
| std::unique_ptr<blink::WebPermissionCallback> callback, |
| blink::WebPermissionStatus status); |
| static void RunPermissionsCallbackOnWorkerThread( |
| std::unique_ptr<blink::WebPermissionsCallback> callback, |
| std::unique_ptr<blink::WebVector<blink::WebPermissionStatus>> statuses); |
| |
| // Helper method that returns an initialized PermissionServicePtr. |
| blink::mojom::PermissionService* GetPermissionServicePtr(); |
| |
| void QueryPermissionInternal(blink::WebPermissionType type, |
| const std::string& origin, |
| blink::WebPermissionCallback* callback, |
| int worker_thread_id); |
| void RequestPermissionInternal(blink::WebPermissionType type, |
| const std::string& origin, |
| blink::WebPermissionCallback* callback, |
| int worker_thread_id); |
| void RequestPermissionsInternal( |
| const blink::WebVector<blink::WebPermissionType>& types, |
| const std::string& origin, |
| blink::WebPermissionsCallback* callback, |
| int worker_thread_id); |
| void RevokePermissionInternal(blink::WebPermissionType type, |
| const std::string& origin, |
| blink::WebPermissionCallback* callback, |
| int worker_thread_id); |
| |
| // This is the callback function used for query, request and revoke. |
| void OnPermissionResponse(int worker_thread_id, |
| uintptr_t callback_key, |
| blink::mojom::PermissionStatus status); |
| void OnRequestPermissionsResponse( |
| int worker_thread_id, |
| uintptr_t callback_key, |
| const mojo::Array<blink::mojom::PermissionStatus>& status); |
| void OnPermissionChanged(blink::WebPermissionType type, |
| const std::string& origin, |
| blink::WebPermissionObserver* observer, |
| blink::mojom::PermissionStatus status); |
| void OnPermissionChangedForWorker( |
| int worker_thread_id, |
| const base::Callback<void(blink::WebPermissionStatus)>& callback, |
| blink::mojom::PermissionStatus status); |
| |
| void GetNextPermissionChange(blink::WebPermissionType type, |
| const std::string& origin, |
| blink::WebPermissionObserver* observer, |
| blink::mojom::PermissionStatus current_status); |
| |
| // Pending callbacks for query(), revoke() and request() single permission. |
| PermissionCallbackMap permission_callbacks_; |
| |
| // Pending callbacks for request() multiple permissions. |
| PermissionsCallbackMap permissions_callbacks_; |
| |
| ServiceRegistry* service_registry_; |
| blink::mojom::PermissionServicePtr permission_service_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PermissionDispatcher); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_CHILD_PERMISSIONS_PERMISSION_DISPATCHER_H_ |