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
14class SearchEngineTabHelperDelegate;
15
16// Per-tab search engine manager. Handles dealing search engine processing
17// functionality.
18class 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(const GURL& page_url,
39                     const GURL& osdd_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_
53