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 "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   ~SearchEngineTabHelper() override;
  25
  26   SearchEngineTabHelperDelegate* delegate() const { return delegate_; }
  27   void set_delegate(SearchEngineTabHelperDelegate* d) { delegate_ = d; }
  28
  29   // content::WebContentsObserver overrides.
  30   void DidNavigateMainFrame(
  31       const content::LoadCommittedDetails& details,
  32       const content::FrameNavigateParams& params) override;
  33   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_