1 // Copyright (c) 2011 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_BROWSER_UI_SEARCH_ENGINES_SEARCH_ENGINE_TAB_HELPER_H_ 6 #define CHROME_BROWSER_UI_SEARCH_ENGINES_SEARCH_ENGINE_TAB_HELPER_H_ 7 8 #include "base/memory/weak_ptr.h" 9 #include "chrome/browser/ui/find_bar/find_bar_controller.h" 10 #include "chrome/browser/ui/find_bar/find_notification_details.h" 11 #include "chrome/common/search_provider.h" 12 #include "content/public/browser/web_contents_observer.h" 13 #include "content/public/browser/web_contents_user_data.h" 14 15 class SearchEngineTabHelperDelegate; 16 class TemplateURL; 17 18 // Per-tab search engine manager. Handles dealing search engine processing 19 // functionality. 20 class SearchEngineTabHelper 21 : public content::WebContentsObserver, 22 public content::WebContentsUserData<SearchEngineTabHelper> { 23 public: 24 virtual ~SearchEngineTabHelper(); 25 delegate()26 SearchEngineTabHelperDelegate* delegate() const { return delegate_; } set_delegate(SearchEngineTabHelperDelegate * d)27 void set_delegate(SearchEngineTabHelperDelegate* d) { delegate_ = d; } 28 29 // content::WebContentsObserver overrides. 30 virtual void DidNavigateMainFrame( 31 const content::LoadCommittedDetails& details, 32 const content::FrameNavigateParams& params) OVERRIDE; 33 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; 34 35 private: 36 explicit SearchEngineTabHelper(content::WebContents* web_contents); 37 friend class content::WebContentsUserData<SearchEngineTabHelper>; 38 39 // Handles when a page specifies an OSDD (OpenSearch Description Document). 40 void OnPageHasOSDD(const GURL& page_url, 41 const GURL& osdd_url, 42 const search_provider::OSDDType& msg_provider_type); 43 44 // Handles when an OSDD is downloaded. 45 void OnDownloadedOSDD(scoped_ptr<TemplateURL> template_url); 46 47 // If params has a searchable form, this tries to create a new keyword. 48 void GenerateKeywordIfNecessary( 49 const content::FrameNavigateParams& params); 50 51 // Delegate for notifying our owner about stuff. Not owned by us. 52 SearchEngineTabHelperDelegate* delegate_; 53 54 base::WeakPtrFactory<SearchEngineTabHelper> weak_ptr_factory_; 55 56 DISALLOW_COPY_AND_ASSIGN(SearchEngineTabHelper); 57 }; 58 59 #endif // CHROME_BROWSER_UI_SEARCH_ENGINES_SEARCH_ENGINE_TAB_HELPER_H_ 60