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// Copyright (c) 2011 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_RENDERER_EXTENSIONS_EXTENSION_HELPER_H_
#define CHROME_RENDERER_EXTENSIONS_EXTENSION_HELPER_H_
#pragma once
#include <map>
#include "content/common/view_types.h"
#include "content/renderer/render_view.h"
#include "content/renderer/render_view_observer.h"
#include "content/renderer/render_view_observer_tracker.h"
class ExtensionDispatcher;
class GURL;
struct ExtensionMsg_ExecuteCode_Params;
struct WebApplicationInfo;
namespace base {
class ListValue;
}
namespace webkit_glue {
class ResourceFetcher;
}
// Filters extension related messages sent to RenderViews.
class ExtensionHelper : public RenderViewObserver,
public RenderViewObserverTracker<ExtensionHelper> {
public:
ExtensionHelper(RenderView* render_view,
ExtensionDispatcher* extension_dispatcher);
virtual ~ExtensionHelper();
// Starts installation of the page in the specified frame as a web app. The
// page must link to an external 'definition file'. This is different from
// the 'application shortcuts' feature where we pull the application
// definition out of optional meta tags in the page.
bool InstallWebApplicationUsingDefinitionFile(WebKit::WebFrame* frame,
string16* error);
int browser_window_id() const { return browser_window_id_; }
ViewType::Type view_type() const { return view_type_; }
private:
// RenderViewObserver implementation.
virtual bool OnMessageReceived(const IPC::Message& message);
virtual void DidFinishDocumentLoad(WebKit::WebFrame* frame);
virtual void DidFinishLoad(WebKit::WebFrame* frame);
virtual void DidCreateDocumentElement(WebKit::WebFrame* frame);
virtual void DidStartProvisionalLoad(WebKit::WebFrame* frame);
virtual void FrameDetached(WebKit::WebFrame* frame);
virtual void DidCreateDataSource(WebKit::WebFrame* frame,
WebKit::WebDataSource* ds);
void OnExtensionResponse(int request_id, bool success,
const std::string& response,
const std::string& error);
void OnExtensionMessageInvoke(const std::string& extension_id,
const std::string& function_name,
const base::ListValue& args,
const GURL& event_url);
void OnExecuteCode(const ExtensionMsg_ExecuteCode_Params& params);
void OnGetApplicationInfo(int page_id);
void OnNotifyRendererViewType(ViewType::Type view_type);
void OnUpdateBrowserWindowId(int window_id);
// Callback triggered when we finish downloading the application definition
// file.
void DidDownloadApplicationDefinition(const WebKit::WebURLResponse& response,
const std::string& data);
// Callback triggered after each icon referenced by the application definition
// is downloaded.
void DidDownloadApplicationIcon(webkit_glue::ImageResourceFetcher* fetcher,
const SkBitmap& image);
// Helper to add an error message to the root frame's console.
void AddErrorToRootConsole(const string16& message);
ExtensionDispatcher* extension_dispatcher_;
// The app info that we are processing. This is used when installing an app
// via application definition. The in-progress web app is stored here while
// its manifest and icons are downloaded.
scoped_ptr<WebApplicationInfo> pending_app_info_;
// Used to download the application definition file.
scoped_ptr<webkit_glue::ResourceFetcher> app_definition_fetcher_;
// Used to download the icons for an application.
RenderView::ImageResourceFetcherList app_icon_fetchers_;
// The number of app icon requests outstanding. When this reaches zero, we're
// done processing an app definition file.
int pending_app_icon_requests_;
// Type of view attached with RenderView.
ViewType::Type view_type_;
// Id number of browser window which RenderView is attached to.
int browser_window_id_;
DISALLOW_COPY_AND_ASSIGN(ExtensionHelper);
};
#endif // CHROME_RENDERER_EXTENSIONS_EXTENSION_HELPER_H_
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