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Side by Side Diff: chrome/browser/ui/tabs/tab_strip_model_observer.h

Issue 10537062: TabContentsWrapper -> TabContents, part 13. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: fiz Created 8 years, 6 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CHROME_BROWSER_UI_TABS_TAB_STRIP_MODEL_OBSERVER_H_ 5 #ifndef CHROME_BROWSER_UI_TABS_TAB_STRIP_MODEL_OBSERVER_H_
6 #define CHROME_BROWSER_UI_TABS_TAB_STRIP_MODEL_OBSERVER_H_ 6 #define CHROME_BROWSER_UI_TABS_TAB_STRIP_MODEL_OBSERVER_H_
7 #pragma once 7 #pragma once
8 8
9 class TabContents; 9 class TabContents;
10 typedef TabContents TabContentsWrapper;
11 class TabStripModel; 10 class TabStripModel;
12 class TabStripSelectionModel; 11 class TabStripSelectionModel;
13 12
14 //////////////////////////////////////////////////////////////////////////////// 13 ////////////////////////////////////////////////////////////////////////////////
15 // 14 //
16 // TabStripModelObserver 15 // TabStripModelObserver
17 // 16 //
18 // Objects implement this interface when they wish to be notified of changes 17 // Objects implement this interface when they wish to be notified of changes
19 // to the TabStripModel. 18 // to the TabStripModel.
20 // 19 //
(...skipping 12 matching lines...) Expand all
33 // Only the loading state changed. 32 // Only the loading state changed.
34 LOADING_ONLY, 33 LOADING_ONLY,
35 34
36 // Only the title changed and page isn't loading. 35 // Only the title changed and page isn't loading.
37 TITLE_NOT_LOADING, 36 TITLE_NOT_LOADING,
38 37
39 // Change not characterized by LOADING_ONLY or TITLE_NOT_LOADING. 38 // Change not characterized by LOADING_ONLY or TITLE_NOT_LOADING.
40 ALL 39 ALL
41 }; 40 };
42 41
43 // A new TabContentsWrapper was inserted into the TabStripModel at the 42 // A new TabContents was inserted into the TabStripModel at the
44 // specified index. |foreground| is whether or not it was opened in the 43 // specified index. |foreground| is whether or not it was opened in the
45 // foreground (selected). 44 // foreground (selected).
46 virtual void TabInsertedAt(TabContentsWrapper* contents, 45 virtual void TabInsertedAt(TabContents* contents,
47 int index, 46 int index,
48 bool foreground); 47 bool foreground);
49 48
50 // The specified TabContentsWrapper at |index| is being closed (and eventually 49 // The specified TabContents at |index| is being closed (and eventually
51 // destroyed). |tab_strip_model| is the TabStripModel the tab was part of. 50 // destroyed). |tab_strip_model| is the TabStripModel the tab was part of.
52 virtual void TabClosingAt(TabStripModel* tab_strip_model, 51 virtual void TabClosingAt(TabStripModel* tab_strip_model,
53 TabContentsWrapper* contents, 52 TabContents* contents,
54 int index); 53 int index);
55 54
56 // The specified TabContentsWrapper at |index| is being detached, perhaps to 55 // The specified TabContents at |index| is being detached, perhaps to
57 // be inserted in another TabStripModel. The implementer should take whatever 56 // be inserted in another TabStripModel. The implementer should take whatever
58 // action is necessary to deal with the TabContentsWrapper no longer being 57 // action is necessary to deal with the TabContents no longer being
59 // present. 58 // present.
60 virtual void TabDetachedAt(TabContentsWrapper* contents, int index); 59 virtual void TabDetachedAt(TabContents* contents, int index);
61 60
62 // The active TabContentsWrapper is about to change from |old_contents|. 61 // The active TabContents is about to change from |old_contents|.
63 // This gives observers a chance to prepare for an impending switch before it 62 // This gives observers a chance to prepare for an impending switch before it
64 // happens. 63 // happens.
65 virtual void TabDeactivated(TabContentsWrapper* contents); 64 virtual void TabDeactivated(TabContents* contents);
66 65
67 // Sent when the active tab changes. The previously active tab is identified 66 // Sent when the active tab changes. The previously active tab is identified
68 // by |old_contents| and the newly active tab by |new_contents|. |index| is 67 // by |old_contents| and the newly active tab by |new_contents|. |index| is
69 // the index of |new_contents|. |user_gesture| specifies whether or not this 68 // the index of |new_contents|. |user_gesture| specifies whether or not this
70 // was done by a user input event (e.g. clicking on a tab, keystroke) or as a 69 // was done by a user input event (e.g. clicking on a tab, keystroke) or as a
71 // side-effect of some other function. 70 // side-effect of some other function.
72 // Note: It is possible for the selection to change while the active tab 71 // Note: It is possible for the selection to change while the active tab
73 // remains unchanged. For example, control-click may not change the active tab 72 // remains unchanged. For example, control-click may not change the active tab
74 // but does change the selection. In this case |ActiveTabChanged| is not sent. 73 // but does change the selection. In this case |ActiveTabChanged| is not sent.
75 // If you care about any changes to the selection, override 74 // If you care about any changes to the selection, override
76 // TabSelectionChanged. 75 // TabSelectionChanged.
77 virtual void ActiveTabChanged(TabContentsWrapper* old_contents, 76 virtual void ActiveTabChanged(TabContents* old_contents,
78 TabContentsWrapper* new_contents, 77 TabContents* new_contents,
79 int index, 78 int index,
80 bool user_gesture); 79 bool user_gesture);
81 80
82 // Sent when the selection changes in |tab_strip_model|. More precisely when 81 // Sent when the selection changes in |tab_strip_model|. More precisely when
83 // selected tabs, anchor tab or active tab change. |old_model| is a snapshot 82 // selected tabs, anchor tab or active tab change. |old_model| is a snapshot
84 // of the selection model before the change. See also ActiveTabChanged for 83 // of the selection model before the change. See also ActiveTabChanged for
85 // details. 84 // details.
86 virtual void TabSelectionChanged(TabStripModel* tab_strip_model, 85 virtual void TabSelectionChanged(TabStripModel* tab_strip_model,
87 const TabStripSelectionModel& old_model); 86 const TabStripSelectionModel& old_model);
88 87
89 // The specified TabContentsWrapper at |from_index| was moved to |to_index|. 88 // The specified TabContents at |from_index| was moved to |to_index|.
90 virtual void TabMoved(TabContentsWrapper* contents, 89 virtual void TabMoved(TabContents* contents,
91 int from_index, 90 int from_index,
92 int to_index); 91 int to_index);
93 92
94 // The specified TabContentsWrapper at |index| changed in some way. |contents| 93 // The specified TabContents at |index| changed in some way. |contents|
95 // may be an entirely different object and the old value is no longer 94 // may be an entirely different object and the old value is no longer
96 // available by the time this message is delivered. 95 // available by the time this message is delivered.
97 // 96 //
98 // See TabChangeType for a description of |change_type|. 97 // See TabChangeType for a description of |change_type|.
99 virtual void TabChangedAt(TabContentsWrapper* contents, 98 virtual void TabChangedAt(TabContents* contents,
100 int index, 99 int index,
101 TabChangeType change_type); 100 TabChangeType change_type);
102 101
103 // The tab contents was replaced at the specified index. This is invoked 102 // The tab contents was replaced at the specified index. This is invoked
104 // when instant is enabled and the user navigates by way of instant or when 103 // when instant is enabled and the user navigates by way of instant or when
105 // prerendering swaps in a prerendered TabContentsWrapper. 104 // prerendering swaps in a prerendered TabContents.
106 virtual void TabReplacedAt(TabStripModel* tab_strip_model, 105 virtual void TabReplacedAt(TabStripModel* tab_strip_model,
107 TabContentsWrapper* old_contents, 106 TabContents* old_contents,
108 TabContentsWrapper* new_contents, 107 TabContents* new_contents,
109 int index); 108 int index);
110 109
111 // Invoked when the pinned state of a tab changes. See note in 110 // Invoked when the pinned state of a tab changes. See note in
112 // TabMiniStateChanged as to how this relates to TabMiniStateChanged. 111 // TabMiniStateChanged as to how this relates to TabMiniStateChanged.
113 virtual void TabPinnedStateChanged(TabContentsWrapper* contents, int index); 112 virtual void TabPinnedStateChanged(TabContents* contents, int index);
114 113
115 // Invoked if the mini state of a tab changes. 114 // Invoked if the mini state of a tab changes.
116 // NOTE: this is sent when the pinned state of a non-app tab changes and is 115 // NOTE: this is sent when the pinned state of a non-app tab changes and is
117 // sent in addition to TabPinnedStateChanged. UI code typically need not care 116 // sent in addition to TabPinnedStateChanged. UI code typically need not care
118 // about TabPinnedStateChanged, but instead this. 117 // about TabPinnedStateChanged, but instead this.
119 virtual void TabMiniStateChanged(TabContentsWrapper* contents, int index); 118 virtual void TabMiniStateChanged(TabContents* contents, int index);
120 119
121 // Invoked when the blocked state of a tab changes. 120 // Invoked when the blocked state of a tab changes.
122 // NOTE: This is invoked when a tab becomes blocked/unblocked by a tab modal 121 // NOTE: This is invoked when a tab becomes blocked/unblocked by a tab modal
123 // window. 122 // window.
124 virtual void TabBlockedStateChanged(TabContentsWrapper* contents, int index); 123 virtual void TabBlockedStateChanged(TabContents* contents, int index);
125 124
126 // The TabStripModel now no longer has any tabs. The implementer may 125 // The TabStripModel now no longer has any tabs. The implementer may
127 // use this as a trigger to try and close the window containing the 126 // use this as a trigger to try and close the window containing the
128 // TabStripModel, for example... 127 // TabStripModel, for example...
129 virtual void TabStripEmpty(); 128 virtual void TabStripEmpty();
130 129
131 // Sent when the tabstrip model is about to be deleted and any reference held 130 // Sent when the tabstrip model is about to be deleted and any reference held
132 // must be dropped. 131 // must be dropped.
133 virtual void TabStripModelDeleted(); 132 virtual void TabStripModelDeleted();
134 133
135 // Invoked when an active/selected tab at |index| is selected again (ie - the 134 // Invoked when an active/selected tab at |index| is selected again (ie - the
136 // active/foreground tab is clicked). 135 // active/foreground tab is clicked).
137 virtual void ActiveTabClicked(int index); 136 virtual void ActiveTabClicked(int index);
138 137
139 protected: 138 protected:
140 virtual ~TabStripModelObserver() {} 139 virtual ~TabStripModelObserver() {}
141 }; 140 };
142 141
143 #endif // CHROME_BROWSER_UI_TABS_TAB_STRIP_MODEL_OBSERVER_H_ 142 #endif // CHROME_BROWSER_UI_TABS_TAB_STRIP_MODEL_OBSERVER_H_
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