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      1 // Copyright 2014 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 CONTENT_RENDERER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CONTEXT_H_
      6 #define CONTENT_RENDERER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CONTEXT_H_
      7 
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/id_map.h"
     13 #include "base/memory/scoped_ptr.h"
     14 #include "base/strings/string16.h"
     15 #include "content/child/webmessageportchannel_impl.h"
     16 #include "content/common/service_worker/service_worker_types.h"
     17 #include "content/renderer/service_worker/service_worker_cache_storage_dispatcher.h"
     18 #include "third_party/WebKit/public/platform/WebMessagePortChannel.h"
     19 #include "third_party/WebKit/public/platform/WebServiceWorkerClientsInfo.h"
     20 #include "third_party/WebKit/public/platform/WebServiceWorkerEventResult.h"
     21 
     22 namespace blink {
     23 class WebServiceWorkerContextProxy;
     24 }
     25 
     26 namespace IPC {
     27 class Message;
     28 }
     29 
     30 namespace content {
     31 
     32 class EmbeddedWorkerContextClient;
     33 
     34 // TODO(kinuko): This should implement WebServiceWorkerContextClient
     35 // rather than having EmbeddedWorkerContextClient implement it.
     36 // See the header comment in embedded_worker_context_client.h for the
     37 // potential EW/SW layering concerns.
     38 class ServiceWorkerScriptContext {
     39  public:
     40   ServiceWorkerScriptContext(
     41       EmbeddedWorkerContextClient* embedded_context,
     42       blink::WebServiceWorkerContextProxy* proxy);
     43   ~ServiceWorkerScriptContext();
     44 
     45   void OnMessageReceived(const IPC::Message& message);
     46 
     47   void DidHandleActivateEvent(int request_id,
     48                               blink::WebServiceWorkerEventResult);
     49   void DidHandleInstallEvent(int request_id,
     50                              blink::WebServiceWorkerEventResult result);
     51   void DidHandleFetchEvent(int request_id,
     52                            ServiceWorkerFetchEventResult result,
     53                            const ServiceWorkerResponse& response);
     54   void DidHandleSyncEvent(int request_id);
     55   void GetClientDocuments(
     56       blink::WebServiceWorkerClientsCallbacks* callbacks);
     57   void PostMessageToDocument(
     58       int client_id,
     59       const base::string16& message,
     60       scoped_ptr<blink::WebMessagePortChannelArray> channels);
     61 
     62   // Send a message to the browser. Takes ownership of |message|.
     63   void Send(IPC::Message* message);
     64 
     65   // Get routing_id for sending message to the ServiceWorkerVersion
     66   // in the browser process.
     67   int GetRoutingID() const;
     68 
     69   blink::WebServiceWorkerCacheStorage* cache_storage() {
     70     return cache_storage_dispatcher_.get();
     71   }
     72 
     73  private:
     74   typedef IDMap<blink::WebServiceWorkerClientsCallbacks, IDMapOwnPointer>
     75       ClientsCallbacksMap;
     76 
     77 
     78   void OnActivateEvent(int request_id);
     79   void OnInstallEvent(int request_id, int active_version_id);
     80   void OnFetchEvent(int request_id, const ServiceWorkerFetchRequest& request);
     81   void OnSyncEvent(int request_id);
     82   void OnPushEvent(int request_id, const std::string& data);
     83   void OnPostMessage(const base::string16& message,
     84                      const std::vector<int>& sent_message_port_ids,
     85                      const std::vector<int>& new_routing_ids);
     86   void OnDidGetClientDocuments(
     87       int request_id, const std::vector<int>& client_ids);
     88 
     89   scoped_ptr<ServiceWorkerCacheStorageDispatcher> cache_storage_dispatcher_;
     90 
     91   // Not owned; embedded_context_ owns this.
     92   EmbeddedWorkerContextClient* embedded_context_;
     93 
     94   // Not owned; this object is destroyed when proxy_ becomes invalid.
     95   blink::WebServiceWorkerContextProxy* proxy_;
     96 
     97   // Used for incoming messages from the browser for which an outgoing response
     98   // back to the browser is expected, the id must be sent back with the
     99   // response.
    100   int current_request_id_;
    101 
    102   // Pending callbacks for GetClientDocuments().
    103   ClientsCallbacksMap pending_clients_callbacks_;
    104 
    105   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerScriptContext);
    106 };
    107 
    108 }  // namespace content
    109 
    110 #endif  // CONTENT_RENDERER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CONTEXT_H_
    111