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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_UTILS_H_ | 5 #ifndef CHROME_BROWSER_UI_TABS_TAB_UTILS_H_ |
6 #define CHROME_BROWSER_UI_TABS_TAB_UTILS_H_ | 6 #define CHROME_BROWSER_UI_TABS_TAB_UTILS_H_ |
7 | 7 |
| 8 #include <vector> |
| 9 |
8 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
9 #include "base/strings/string16.h" | 11 #include "base/strings/string16.h" |
10 | 12 |
| 13 class TabStripModel; |
| 14 |
11 namespace content { | 15 namespace content { |
12 class WebContents; | 16 class WebContents; |
13 } // namespace content | 17 } // namespace content |
14 | 18 |
15 namespace gfx { | 19 namespace gfx { |
16 class Animation; | 20 class Animation; |
17 class Image; | 21 class Image; |
18 } // namespace gfx | 22 } // namespace gfx |
19 | 23 |
20 // Media state for a tab. In reality, more than one of these may apply. See | 24 // Media state for a tab. In reality, more than one of these may apply. See |
21 // comments for GetTabMediaStateForContents() below. | 25 // comments for GetTabMediaStateForContents() below. |
22 enum TabMediaState { | 26 enum TabMediaState { |
23 TAB_MEDIA_STATE_NONE, | 27 TAB_MEDIA_STATE_NONE, |
24 TAB_MEDIA_STATE_RECORDING, // Audio/Video being recorded, consumed by tab. | 28 TAB_MEDIA_STATE_RECORDING, // Audio/Video being recorded, consumed by tab. |
25 TAB_MEDIA_STATE_CAPTURING, // Tab contents being captured. | 29 TAB_MEDIA_STATE_CAPTURING, // Tab contents being captured. |
26 TAB_MEDIA_STATE_AUDIO_PLAYING // Audible audio is playing from the tab. | 30 TAB_MEDIA_STATE_AUDIO_PLAYING, // Audible audio is playing from the tab. |
| 31 TAB_MEDIA_STATE_AUDIO_MUTING, // Tab audio is being muted. |
27 }; | 32 }; |
28 | 33 |
29 namespace chrome { | 34 namespace chrome { |
30 | 35 |
31 // Logic to determine which components (i.e., close button, favicon, and media | 36 // Logic to determine which components (i.e., close button, favicon, and media |
32 // indicator) of a tab should be shown, given current state. |capacity| | 37 // indicator) of a tab should be shown, given current state. |capacity| |
33 // specifies how many components can be shown, given available tab width. | 38 // specifies how many components can be shown, given available tab width. |
34 // | 39 // |
35 // Precedence rules for deciding what to show when capacity is insufficient to | 40 // Precedence rules for deciding what to show when capacity is insufficient to |
36 // show everything: | 41 // show everything: |
(...skipping 23 matching lines...) Expand all Loading... |
60 | 65 |
61 // Returns the media state to be shown by the tab's media indicator. When | 66 // Returns the media state to be shown by the tab's media indicator. When |
62 // multiple states apply (e.g., tab capture with audio playback), the one most | 67 // multiple states apply (e.g., tab capture with audio playback), the one most |
63 // relevant to user privacy concerns is selected. | 68 // relevant to user privacy concerns is selected. |
64 TabMediaState GetTabMediaStateForContents(content::WebContents* contents); | 69 TabMediaState GetTabMediaStateForContents(content::WebContents* contents); |
65 | 70 |
66 // Returns a cached image, to be shown by the media indicator for the given | 71 // Returns a cached image, to be shown by the media indicator for the given |
67 // |media_state|. Uses the global ui::ResourceBundle shared instance. | 72 // |media_state|. Uses the global ui::ResourceBundle shared instance. |
68 const gfx::Image& GetTabMediaIndicatorImage(TabMediaState media_state); | 73 const gfx::Image& GetTabMediaIndicatorImage(TabMediaState media_state); |
69 | 74 |
| 75 // Returns the cached image, to be shown by the media indicator button for mouse |
| 76 // hover/pressed, when the indicator is in the given |media_state|. Uses the |
| 77 // global ui::ResourceBundle shared instance. |
| 78 const gfx::Image& GetTabMediaIndicatorAffordanceImage( |
| 79 TabMediaState media_state); |
| 80 |
70 // Returns a non-continuous Animation that performs a fade-in or fade-out | 81 // Returns a non-continuous Animation that performs a fade-in or fade-out |
71 // appropriate for the given |next_media_state|. This is used by the tab media | 82 // appropriate for the given |next_media_state|. This is used by the tab media |
72 // indicator to alert the user that recording, tab capture, or audio playback | 83 // indicator to alert the user that recording, tab capture, or audio playback |
73 // has started/stopped. | 84 // has started/stopped. |
74 scoped_ptr<gfx::Animation> CreateTabMediaIndicatorFadeAnimation( | 85 scoped_ptr<gfx::Animation> CreateTabMediaIndicatorFadeAnimation( |
75 TabMediaState next_media_state); | 86 TabMediaState next_media_state); |
76 | 87 |
77 // Returns the text to show in a tab's tooltip: The contents |title|, followed | 88 // Returns the text to show in a tab's tooltip: The contents |title|, followed |
78 // by a break, followed by a localized string describing the |media_state|. | 89 // by a break, followed by a localized string describing the |media_state|. |
79 base::string16 AssembleTabTooltipText(const base::string16& title, | 90 base::string16 AssembleTabTooltipText(const base::string16& title, |
80 TabMediaState media_state); | 91 TabMediaState media_state); |
81 | 92 |
| 93 // Returns true if the experimental tab audio mute feature is enabled. |
| 94 bool IsTabAudioMutingFeatureEnabled(); |
| 95 |
| 96 // Returns true if audio mute can be activated/deactivated for the given |
| 97 // |contents|. |
| 98 bool CanToggleAudioMute(content::WebContents* contents); |
| 99 |
| 100 // Indicates/Sets whether all audio output from |contents| is muted. |
| 101 bool IsTabAudioMuted(content::WebContents* contents); |
| 102 void SetTabAudioMuted(content::WebContents* contents, bool mute); |
| 103 |
| 104 // Returns true if the tabs at the |indices| in |tab_strip| are all muted. |
| 105 bool AreAllTabsMuted(const TabStripModel& tab_strip, |
| 106 const std::vector<int>& indices); |
| 107 |
82 } // namespace chrome | 108 } // namespace chrome |
83 | 109 |
84 #endif // CHROME_BROWSER_UI_TABS_TAB_UTILS_H_ | 110 #endif // CHROME_BROWSER_UI_TABS_TAB_UTILS_H_ |
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