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
|
// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_BAR_CONTROLLER_H_
#define CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_BAR_CONTROLLER_H_
#include "base/memory/raw_ref.h"
#include "base/scoped_observation.h"
#include "chrome/browser/ui/bookmarks/bookmark_bar.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "components/prefs/pref_change_registrar.h"
#include "content/public/browser/web_contents_observer.h"
#include "ui/base/unowned_user_data/scoped_unowned_user_data.h"
class BrowserWindowInterface;
class TabStripModel;
namespace content {
class NavigationHandle;
} // namespace content
// Manages bookmark bar of its associated Browser instance.
class BookmarkBarController : public TabStripModelObserver,
public content::WebContentsObserver {
public:
DECLARE_USER_DATA(BookmarkBarController);
// Describes where the bookmark bar state change originated from.
enum class StateChangeReason {
// From the constructor.
kInit,
// Change is the result of the active tab changing.
kTabSwitch,
// Change is the result of the bookmark bar pref changing.
kPrefChange,
// Change is the result of a state change in the active tab.
kTabState,
// Change is the result of window toggling in/out of fullscreen mode.
kToggleFullscreen,
// Change is the result of switching the option of showing toolbar in full
// screen. Only used on Mac.
kToolbarOptionChange,
// Change is the result of a force show reason.
kForceShow,
// Change is the result of a split tab being created or removed.
kSplitTabChange,
};
// Represents the reasons for force showing bookmark bar.
enum ForceShowFlag {
kNone = 0,
kTabGroupsTutorialActive = 1 << 0,
kTabGroupSaved = 1 << 1,
};
BookmarkBarController(BrowserWindowInterface& browser,
TabStripModel& tab_strip_model);
~BookmarkBarController() override;
BookmarkBarController(const BookmarkBarController&) = delete;
BookmarkBarController& operator=(const BookmarkBarController&) = delete;
static BookmarkBarController* From(
BrowserWindowInterface* browser_window_interface);
static const BookmarkBarController* From(
const BrowserWindowInterface* browser_window_interface);
// Returns the current state of the bookmark bar.
BookmarkBar::State bookmark_bar_state() const { return bookmark_bar_state_; }
// Sets or clears the flags to force showing bookmark bar.
void SetForceShowBookmarkBarFlag(ForceShowFlag flag);
void ClearForceShowBookmarkBarFlag(ForceShowFlag flag);
// Resets |bookmark_bar_state_| based on the active tab. Notifies the
// BrowserWindow if necessary.
void UpdateBookmarkBarState(StateChangeReason reason);
// TabStripModelObserver implementation:
void OnTabStripModelChanged(
TabStripModel* tab_strip_model,
const TabStripModelChange& change,
const TabStripSelectionChange& selection) override;
void OnSplitTabChanged(const SplitTabChange& change) override;
// content::WebContentsObserver implementation:
void DidFinishNavigation(
content::NavigationHandle* navigation_handle) override;
private:
// Checks whether bookmark bar should be shown for the current browser.
bool ShouldShowBookmarkBar() const;
const raw_ref<BrowserWindowInterface> browser_;
const raw_ref<TabStripModel> tab_strip_model_;
BookmarkBar::State bookmark_bar_state_ = BookmarkBar::HIDDEN;
int force_show_bookmark_bar_flags_ = ForceShowFlag::kNone;
PrefChangeRegistrar pref_change_registrar_;
ui::ScopedUnownedUserData<BookmarkBarController> scoped_data_holder_;
};
#endif // CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_BAR_CONTROLLER_H_
|
