AppCachePlumbing

chrome/common/app_cache/app_cache_context_impl.h

+// Copyright (c) 2009 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_COMMON_APP_CACHE_APP_CACHE_CONTEXT_IMPL_H_
+#define CHROME_COMMON_APP_CACHE_APP_CACHE_CONTEXT_IMPL_H_
+
+#include "base/id_map.h"
+#include "chrome/common/ipc_message.h"
+#include "webkit/glue/webappcachecontext.h"
+
+// A concrete implemenation of WebAppCacheContext for use in a child process.
+class AppCacheContextImpl : public WebAppCacheContext {
+ public:
+  // Returns the context having given id or NULL if there is no such context.
+  static AppCacheContextImpl* FromContextId(int id);
+
+  AppCacheContextImpl(IPC::Message::Sender* sender);
+  virtual ~AppCacheContextImpl();
+
+  // WebAppCacheContext implementation
+  virtual int context_id() { return context_id_; }
+  virtual int64 app_cache_id() { return app_cache_id_; }
+  virtual void Initialize(WebAppCacheContext::ContextType context_type,
+                          WebAppCacheContext* opt_parent);
+  virtual void SelectAppCacheWithoutManifest(
+                                     const GURL& document_url,
+                                     int64 cache_document_was_loaded_from);
+  virtual void SelectAppCacheWithManifest(
+                                     const GURL& document_url,
+                                     int64 cache_document_was_loaded_from,
+                                     const GURL& manifest_url);
+
+  // Called by AppCacheDispatcher when the browser has selected an appcache.
+  void OnAppCacheSelected(int select_request_id, int64 app_cache_id);
+
+ private:
+  void UnInitializeContext();
+
+  int context_id_;
+  int64 app_cache_id_;
+  int pending_select_request_id_;
+  IPC::Message::Sender* sender_;
+
+  static IDMap<AppCacheContextImpl> all_contexts;
+};
+
+#endif  // CHROME_COMMON_APP_CACHE_APP_CACHE_CONTEXT_IMPL_H_