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      1 // Copyright (c) 2012 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_RENDERER_EXTENSIONS_WEBSTORE_BINDINGS_H_
      6 #define CHROME_RENDERER_EXTENSIONS_WEBSTORE_BINDINGS_H_
      7 
      8 #include "base/compiler_specific.h"
      9 #include "chrome/renderer/extensions/chrome_v8_extension_handler.h"
     10 #include "extensions/renderer/object_backed_native_handler.h"
     11 #include "third_party/WebKit/public/web/WebFrame.h"
     12 
     13 namespace extensions {
     14 
     15 // A V8 extension that creates an object at window.chrome.webstore. This object
     16 // allows JavaScript to initiate inline installs of apps that are listed in the
     17 // Chrome Web Store (CWS).
     18 class WebstoreBindings : public ObjectBackedNativeHandler,
     19                          public ChromeV8ExtensionHandler {
     20  public:
     21   explicit WebstoreBindings(ScriptContext* context);
     22 
     23   // IPC::Listener
     24   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     25 
     26  private:
     27   void Install(const v8::FunctionCallbackInfo<v8::Value>& args);
     28 
     29   void OnInlineWebstoreInstallResponse(
     30       int install_id, bool success, const std::string& error);
     31 
     32   void OnInlineInstallStageChanged(int stage);
     33 
     34   void OnInlineInstallDownloadProgress(int percent_downloaded);
     35 
     36   // Extracts a Web Store item ID from a <link rel="chrome-webstore-item"
     37   // href="https://chrome.google.com/webstore/detail/id"> node found in the
     38   // frame. On success, true will be returned and the |webstore_item_id|
     39   // parameter will be populated with the ID. On failure, false will be returned
     40   // and |error| will be populated with the error.
     41   static bool GetWebstoreItemIdFromFrame(
     42       blink::WebFrame* frame, const std::string& preferred_store_link_url,
     43       std::string* webstore_item_id, std::string* error);
     44 
     45   DISALLOW_COPY_AND_ASSIGN(WebstoreBindings);
     46 };
     47 
     48 }  // namespace extensions
     49 
     50 #endif  // CHROME_RENDERER_EXTENSIONS_WEBSTORE_BINDINGS_H_
     51