chrome/browser/ui/search_engines/search_engine_tab_helper.h

   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 "chrome/browser/ui/find_bar/find_bar_controller.h"
   9 #include "chrome/browser/ui/find_bar/find_notification_details.h"
  10 #include "chrome/common/search_provider.h"
  11 #include "content/public/browser/web_contents_observer.h"
  12 #include "content/public/browser/web_contents_user_data.h"
  13
  14 class SearchEngineTabHelperDelegate;
  15
  16 // Per-tab search engine manager. Handles dealing search engine processing
  17 // functionality.
  18 class SearchEngineTabHelper
  19     : public content::WebContentsObserver,
  20       public content::WebContentsUserData<SearchEngineTabHelper> {
  21  public:
  22   virtual ~SearchEngineTabHelper();
  23
  24   SearchEngineTabHelperDelegate* delegate() const { return delegate_; }
  25   void set_delegate(SearchEngineTabHelperDelegate* d) { delegate_ = d; }
  26
  27   // content::WebContentsObserver overrides.
  28   virtual void DidNavigateMainFrame(
  29       const content::LoadCommittedDetails& details,
  30       const content::FrameNavigateParams& params) OVERRIDE;
  31   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  32
  33  private:
  34   explicit SearchEngineTabHelper(content::WebContents* web_contents);
  35   friend class content::WebContentsUserData<SearchEngineTabHelper>;
  36
  37   // Handles when a page specifies an OSDD (OpenSearch Description Document).
  38   void OnPageHasOSDD(int32 page_id,
  39                      const GURL& doc_url,
  40                      const search_provider::OSDDType& msg_provider_type);
  41
  42   // If params has a searchable form, this tries to create a new keyword.
  43   void GenerateKeywordIfNecessary(
  44       const content::FrameNavigateParams& params);
  45
  46   // Delegate for notifying our owner about stuff. Not owned by us.
  47   SearchEngineTabHelperDelegate* delegate_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(SearchEngineTabHelper);
  50 };
  51
  52 #endif  // CHROME_BROWSER_UI_SEARCH_ENGINES_SEARCH_ENGINE_TAB_HELPER_H_