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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 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_TABS_TAB_STRIP_MODEL_OBSERVER_H_ | 5 #ifndef CHROME_BROWSER_TABS_TAB_STRIP_MODEL_OBSERVER_H_ |
| 6 #define CHROME_BROWSER_TABS_TAB_STRIP_MODEL_OBSERVER_H_ | 6 #define CHROME_BROWSER_TABS_TAB_STRIP_MODEL_OBSERVER_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 class TabContentsWrapper; | 9 class TabContentsWrapper; |
| 10 class TabStripModel; | 10 class TabStripModel; |
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| 65 // by |old_contents| and the newly selected tab by |new_contents|. |index| is | 65 // by |old_contents| and the newly selected tab by |new_contents|. |index| is |
| 66 // the index of |new_contents|. When using multiple selection this may be sent | 66 // the index of |new_contents|. When using multiple selection this may be sent |
| 67 // even when the active tab has not changed. For example, if the selection is | 67 // even when the active tab has not changed. For example, if the selection is |
| 68 // extended this method is invoked to inform observers the selection has | 68 // extended this method is invoked to inform observers the selection has |
| 69 // changed, but |old_contents| and |new_contents| are the same. If you only | 69 // changed, but |old_contents| and |new_contents| are the same. If you only |
| 70 // care about when the active tab changes, check for when |old_contents| | 70 // care about when the active tab changes, check for when |old_contents| |
| 71 // differs from |new_contents|. |user_gesture| specifies whether or not this | 71 // differs from |new_contents|. |user_gesture| specifies whether or not this |
| 72 // was done by a user input event (e.g. clicking on a tab, keystroke) or as a | 72 // was done by a user input event (e.g. clicking on a tab, keystroke) or as a |
| 73 // side-effect of some other function. | 73 // side-effect of some other function. |
| 74 // | 74 // |
| 75 // TODO(sky): consider not overloading this. Instead rename this to | 75 // TODO(dpapad): Add TabSelectionChanged method for when the selected tabs |
| 76 // TabActivatedAt (or something) and have TabSelectionChanged as well. | 76 // change. |
| 77 // TabSelectedAt. This requires renaming everyone to use new terms instead of | 77 virtual void ActiveTabChanged(TabContentsWrapper* old_contents, |
| 78 // selection. | 78 TabContentsWrapper* new_contents, |
| 79 virtual void TabSelectedAt(TabContentsWrapper* old_contents, | 79 int index, |
| 80 TabContentsWrapper* new_contents, | 80 bool user_gesture); |
| 81 int index, | |
| 82 bool user_gesture); | |
| 83 | 81 |
| 84 // The specified TabContents at |from_index| was moved to |to_index|. | 82 // The specified TabContents at |from_index| was moved to |to_index|. |
| 85 virtual void TabMoved(TabContentsWrapper* contents, | 83 virtual void TabMoved(TabContentsWrapper* contents, |
| 86 int from_index, | 84 int from_index, |
| 87 int to_index); | 85 int to_index); |
| 88 | 86 |
| 89 // The specified TabContents at |index| changed in some way. |contents| may | 87 // The specified TabContents at |index| changed in some way. |contents| may |
| 90 // be an entirely different object and the old value is no longer available | 88 // be an entirely different object and the old value is no longer available |
| 91 // by the time this message is delivered. | 89 // by the time this message is delivered. |
| 92 // | 90 // |
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| 129 | 127 |
| 130 // Invoked when an active/selected tab at |index| is selected again (ie - the | 128 // Invoked when an active/selected tab at |index| is selected again (ie - the |
| 131 // active/foreground tab is clicked). | 129 // active/foreground tab is clicked). |
| 132 virtual void ActiveTabClicked(int index); | 130 virtual void ActiveTabClicked(int index); |
| 133 | 131 |
| 134 protected: | 132 protected: |
| 135 virtual ~TabStripModelObserver() {} | 133 virtual ~TabStripModelObserver() {} |
| 136 }; | 134 }; |
| 137 | 135 |
| 138 #endif // CHROME_BROWSER_TABS_TAB_STRIP_MODEL_OBSERVER_H_ | 136 #endif // CHROME_BROWSER_TABS_TAB_STRIP_MODEL_OBSERVER_H_ |
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