1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_
#define CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/prefs/pref_change_registrar.h"
#include "chrome/browser/ui/search/instant_controller.h"
#include "chrome/browser/ui/search/instant_unload_handler.h"
#include "chrome/browser/ui/search/search_model_observer.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "ui/base/window_open_disposition.h"
class Browser;
struct InstantSuggestion;
class Profile;
class ThemeService;
namespace content {
class WebContents;
}
namespace gfx {
class Rect;
}
class BrowserInstantController : public content::NotificationObserver,
public SearchModelObserver {
public:
explicit BrowserInstantController(Browser* browser);
virtual ~BrowserInstantController();
// If |url| is the new tab page URL, set |target_contents| to the preloaded
// NTP contents from InstantController. If |source_contents| is not NULL, we
// replace it with the new |target_contents| in the tabstrip and delete
// |source_contents|. Otherwise, the caller owns |target_contents| and is
// responsible for inserting it into the tabstrip.
//
// Returns true if and only if we update |target_contents|.
bool MaybeSwapInInstantNTPContents(
const GURL& url,
content::WebContents* source_contents,
content::WebContents** target_contents);
// Commits the current Instant, returning true on success. This is intended
// for use from OpenCurrentURL.
bool OpenInstant(WindowOpenDisposition disposition);
// Returns the Profile associated with the Browser that owns this object.
Profile* profile() const;
// Returns the InstantController or NULL if there is no InstantController for
// this BrowserInstantController.
InstantController* instant() { return &instant_; }
// Invoked by |instant_| to commit the |overlay| by merging it into the active
// tab or adding it as a new tab.
void CommitInstant(scoped_ptr<content::WebContents> overlay, bool in_new_tab);
// Invoked by |instant_| to autocomplete the |suggestion| into the omnibox.
void SetInstantSuggestion(const InstantSuggestion& suggestion);
// Invoked by |instant_| to commit the omnibox's suggested text.
// Call-through to OmniboxEditModel::CommitSuggestedText.
void CommitSuggestedText(bool skip_inline_autocomplete);
// Invoked by |instant_| to get the bounds that the overlay is placed at,
// in screen coordinates.
gfx::Rect GetInstantBounds();
// Invoked by |instant_| to notify that the overlay gained focus, usually due
// to the user clicking on it.
void InstantOverlayFocused();
// Invoked by |instant_| to give the omnibox focus, with the option of making
// the caret invisible.
void FocusOmnibox(bool caret_visibility);
// Invoked by |instant_| to get the currently active tab, over which the
// overlay would be shown.
content::WebContents* GetActiveWebContents() const;
// Invoked by |browser_| when the active tab changes.
void ActiveTabChanged();
// Invoked by |browser_| when the active tab is about to be deactivated.
void TabDeactivated(content::WebContents* contents);
// Invoked by |instant_| to update theme information for NTP.
void UpdateThemeInfo();
// Invoked by the InstantController when it wants to open a URL.
void OpenURL(const GURL& url,
content::PageTransition transition,
WindowOpenDisposition disposition);
// Sets the stored omnibox bounds.
void SetOmniboxBounds(const gfx::Rect& bounds);
private:
// Sets the value of |instant_| based on value from profile. Invoked
// on pref change.
void ResetInstant(const std::string& pref_name);
// Overridden from search::SearchModelObserver:
virtual void ModelChanged(const SearchModel::State& old_state,
const SearchModel::State& new_state) OVERRIDE;
// content::NotificationObserver implementation.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// Helper for handling theme change.
void OnThemeChanged(ThemeService* theme_service);
// Replaces the contents at tab |index| with |new_contents| and deletes the
// existing contents.
void ReplaceWebContentsAt(int index,
scoped_ptr<content::WebContents> new_contents);
Browser* const browser_;
InstantController instant_;
InstantUnloadHandler instant_unload_handler_;
// Theme-related data for NTP overlay to adopt themes.
bool initialized_theme_info_; // True if theme_info_ has been initialized.
ThemeBackgroundInfo theme_info_;
PrefChangeRegistrar profile_pref_registrar_;
content::NotificationRegistrar registrar_;
DISALLOW_COPY_AND_ASSIGN(BrowserInstantController);
};
#endif // CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_
|
