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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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_ORDER_CONTROLLER_H_ | 5 #ifndef CHROME_BROWSER_TABS_TAB_STRIP_MODEL_ORDER_CONTROLLER_H_ |
6 #define CHROME_BROWSER_TABS_TAB_STRIP_MODEL_ORDER_CONTROLLER_H_ | 6 #define CHROME_BROWSER_TABS_TAB_STRIP_MODEL_ORDER_CONTROLLER_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "chrome/browser/tabs/tab_strip_model.h" | 9 #include "chrome/browser/tabs/tab_strip_model.h" |
10 #include "chrome/common/page_transition_types.h" | 10 #include "chrome/common/page_transition_types.h" |
11 | 11 |
12 class TabContents; | 12 class TabContentsWrapper; |
13 | 13 |
14 /////////////////////////////////////////////////////////////////////////////// | 14 /////////////////////////////////////////////////////////////////////////////// |
15 // TabStripModelOrderController | 15 // TabStripModelOrderController |
16 // | 16 // |
17 // An object that allows different types of ordering and reselection to be | 17 // An object that allows different types of ordering and reselection to be |
18 // heuristics plugged into a TabStripModel. | 18 // heuristics plugged into a TabStripModel. |
19 // | 19 // |
20 class TabStripModelOrderController : public TabStripModelObserver { | 20 class TabStripModelOrderController : public TabStripModelObserver { |
21 public: | 21 public: |
22 explicit TabStripModelOrderController(TabStripModel* tabstrip); | 22 explicit TabStripModelOrderController(TabStripModel* tabstrip); |
23 virtual ~TabStripModelOrderController(); | 23 virtual ~TabStripModelOrderController(); |
24 | 24 |
25 // Sets the insertion policy. Default is INSERT_AFTER. | 25 // Sets the insertion policy. Default is INSERT_AFTER. |
26 void set_insertion_policy(TabStripModel::InsertionPolicy policy) { | 26 void set_insertion_policy(TabStripModel::InsertionPolicy policy) { |
27 insertion_policy_ = policy; | 27 insertion_policy_ = policy; |
28 } | 28 } |
29 TabStripModel::InsertionPolicy insertion_policy() const { | 29 TabStripModel::InsertionPolicy insertion_policy() const { |
30 return insertion_policy_; | 30 return insertion_policy_; |
31 } | 31 } |
32 | 32 |
33 // Determine where to place a newly opened tab by using the supplied | 33 // Determine where to place a newly opened tab by using the supplied |
34 // transition and foreground flag to figure out how it was opened. | 34 // transition and foreground flag to figure out how it was opened. |
35 int DetermineInsertionIndex(TabContents* new_contents, | 35 int DetermineInsertionIndex(TabContentsWrapper* new_contents, |
36 PageTransition::Type transition, | 36 PageTransition::Type transition, |
37 bool foreground); | 37 bool foreground); |
38 | 38 |
39 // Returns the index to append tabs at. | 39 // Returns the index to append tabs at. |
40 int DetermineInsertionIndexForAppending(); | 40 int DetermineInsertionIndexForAppending(); |
41 | 41 |
42 // Determine where to shift selection after a tab is closed. | 42 // Determine where to shift selection after a tab is closed. |
43 int DetermineNewSelectedIndex(int removed_index) const; | 43 int DetermineNewSelectedIndex(int removed_index) const; |
44 | 44 |
45 // Overridden from TabStripModelObserver: | 45 // Overridden from TabStripModelObserver: |
46 virtual void TabSelectedAt(TabContents* old_contents, | 46 virtual void TabSelectedAt(TabContentsWrapper* old_contents, |
47 TabContents* new_contents, | 47 TabContentsWrapper* new_contents, |
48 int index, | 48 int index, |
49 bool user_gesture); | 49 bool user_gesture); |
50 | 50 |
51 private: | 51 private: |
52 // Returns a valid index to be selected after the tab at |removing_index| is | 52 // Returns a valid index to be selected after the tab at |removing_index| is |
53 // closed. If |index| is after |removing_index|, |index| is adjusted to | 53 // closed. If |index| is after |removing_index|, |index| is adjusted to |
54 // reflect the fact that |removing_index| is going away. | 54 // reflect the fact that |removing_index| is going away. |
55 int GetValidIndex(int index, int removing_index) const; | 55 int GetValidIndex(int index, int removing_index) const; |
56 | 56 |
57 TabStripModel* tabstrip_; | 57 TabStripModel* tabstrip_; |
58 | 58 |
59 TabStripModel::InsertionPolicy insertion_policy_; | 59 TabStripModel::InsertionPolicy insertion_policy_; |
60 | 60 |
61 DISALLOW_COPY_AND_ASSIGN(TabStripModelOrderController); | 61 DISALLOW_COPY_AND_ASSIGN(TabStripModelOrderController); |
62 }; | 62 }; |
63 | 63 |
64 #endif // CHROME_BROWSER_TABS_TAB_STRIP_MODEL_ORDER_CONTROLLER_H_ | 64 #endif // CHROME_BROWSER_TABS_TAB_STRIP_MODEL_ORDER_CONTROLLER_H_ |
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