text: // Copyright (c) 2010 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 WEBKIT_APPCACHE_WEB_APPLICATION_CACHE_HOST_IMPL_H_
  #define WEBKIT_APPCACHE_WEB_APPLICATION_CACHE_HOST_IMPL_H_
  
  #include <string>
  #include "base/time.h"
  #include "googleurl/src/gurl.h"
  #include "third_party/WebKit/WebKit/chromium/public/WebApplicationCacheHostClient.h"
  #include "third_party/WebKit/WebKit/chromium/public/WebURLResponse.h"
  #include "third_party/WebKit/WebKit/chromium/public/WebVector.h"
  #include "webkit/appcache/appcache_interfaces.h"
  
  namespace WebKit {
  class WebFrame;
  }
  
  namespace appcache {
  
  class WebApplicationCacheHostImpl : public WebKit::WebApplicationCacheHost {
   public:
    // Returns the host having given id or NULL if there is no such host.
    static WebApplicationCacheHostImpl* FromId(int id);
  
    // Returns the host associated with the current document in frame.
    static WebApplicationCacheHostImpl* FromFrame(WebKit::WebFrame* frame);
  
    WebApplicationCacheHostImpl(WebKit::WebApplicationCacheHostClient* client,
                                AppCacheBackend* backend);
    virtual ~WebApplicationCacheHostImpl();
  
    int host_id() const { return host_id_; }
    AppCacheBackend* backend() const { return backend_; }
    WebKit::WebApplicationCacheHostClient* client() const { return client_; }
  
    virtual void OnCacheSelected(const appcache::AppCacheInfo& info);
    void OnStatusChanged(appcache::Status);
    void OnEventRaised(appcache::EventID);
    void OnProgressEventRaised(const GURL& url, int num_total, int num_complete);
    void OnErrorEventRaised(const std::string& message);
    virtual void OnLogMessage(LogLevel log_level, const std::string& message) {}
    virtual void OnContentBlocked(const GURL& manifest_url) {}
  
    // WebApplicationCacheHost methods
    virtual void willStartMainResourceRequest(WebKit::WebURLRequest&);
    virtual void willStartSubResourceRequest(WebKit::WebURLRequest&);
    virtual void selectCacheWithoutManifest();
    virtual bool selectCacheWithManifest(const WebKit::WebURL& manifestURL);
    virtual void didReceiveResponseForMainResource(const WebKit::WebURLResponse&);
    virtual void didReceiveDataForMainResource(const char* data, int len);
    virtual void didFinishLoadingMainResource(bool success);
    virtual WebKit::WebApplicationCacheHost::Status status();
    virtual bool startUpdate();
    virtual bool swapCache();
    virtual void getResourceList(WebKit::WebVector<ResourceInfo>* resources);
    virtual void getAssociatedCacheInfo(CacheInfo* info);
  
   private:
    enum IsNewMasterEntry {
      MAYBE,
      YES,
      NO
    };
  
    WebKit::WebApplicationCacheHostClient* client_;
    AppCacheBackend* backend_;
    int host_id_;
    bool has_status_;
    appcache::Status status_;
    bool has_cached_status_;
    appcache::Status cached_status_;
    WebKit::WebURLResponse document_response_;
    GURL document_url_;
    bool is_scheme_supported_;
    bool is_get_method_;
    IsNewMasterEntry is_new_master_entry_;
    appcache::AppCacheInfo cache_info_;
    GURL original_main_resource_url_;  // Used to detect redirection.
  };
  
  }  // namespace
  
  #endif  // WEBKIT_APPCACHE_WEB_APPLICATION_CACHE_HOST_IMPL_H_
  
  