chrome/browser/ui/browser_instant_controller.h

   1 // Copyright 2012 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_BROWSER_INSTANT_CONTROLLER_H_
   6 #define CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "chrome/browser/search/instant_service_observer.h"
  13 #include "chrome/browser/ui/search/instant_controller.h"
  14 #include "chrome/browser/ui/search/search_model_observer.h"
  15
  16 class Browser;
  17 struct InstantSuggestion;
  18 class Profile;
  19
  20 namespace content {
  21 class WebContents;
  22 }
  23
  24 class BrowserInstantController : public SearchModelObserver,
  25                                  public InstantServiceObserver {
  26  public:
  27   explicit BrowserInstantController(Browser* browser);
  28   virtual ~BrowserInstantController();
  29
  30   // Commits the current Instant, returning true on success. This is intended
  31   // for use from OpenCurrentURL.
  32   bool OpenInstant(WindowOpenDisposition disposition, const GURL& url);
  33
  34   // Returns the Profile associated with the Browser that owns this object.
  35   Profile* profile() const;
  36
  37   // Returns the InstantController or NULL if there is no InstantController for
  38   // this BrowserInstantController.
  39   InstantController* instant() { return &instant_; }
  40
  41   // Invoked by |instant_| to get the currently active tab.
  42   content::WebContents* GetActiveWebContents() const;
  43
  44   // Invoked by |browser_| when the active tab changes.
  45   void ActiveTabChanged();
  46
  47   // Invoked by |browser_| when the active tab is about to be deactivated.
  48   void TabDeactivated(content::WebContents* contents);
  49
  50  private:
  51   // SearchModelObserver:
  52   virtual void ModelChanged(const SearchModel::State& old_state,
  53                             const SearchModel::State& new_state) OVERRIDE;
  54
  55   // InstantServiceObserver:
  56   virtual void DefaultSearchProviderChanged() OVERRIDE;
  57
  58   // Replaces the contents at tab |index| with |new_contents| and deletes the
  59   // existing contents.
  60   void ReplaceWebContentsAt(int index,
  61                             scoped_ptr<content::WebContents> new_contents);
  62
  63   Browser* const browser_;
  64
  65   InstantController instant_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(BrowserInstantController);
  68 };
  69
  70 #endif  // CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_