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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 CONTENT_BROWSER_HOST_ZOOM_MAP_IMPL_H_ | 5 #ifndef CONTENT_BROWSER_HOST_ZOOM_MAP_IMPL_H_ |
6 #define CONTENT_BROWSER_HOST_ZOOM_MAP_IMPL_H_ | 6 #define CONTENT_BROWSER_HOST_ZOOM_MAP_IMPL_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 #include <vector> | 10 #include <vector> |
(...skipping 17 matching lines...) Expand all Loading... | |
28 public base::SupportsUserData::Data { | 28 public base::SupportsUserData::Data { |
29 public: | 29 public: |
30 HostZoomMapImpl(); | 30 HostZoomMapImpl(); |
31 virtual ~HostZoomMapImpl(); | 31 virtual ~HostZoomMapImpl(); |
32 | 32 |
33 // HostZoomMap implementation: | 33 // HostZoomMap implementation: |
34 virtual void CopyFrom(HostZoomMap* copy) OVERRIDE; | 34 virtual void CopyFrom(HostZoomMap* copy) OVERRIDE; |
35 virtual double GetZoomLevelForHostAndScheme( | 35 virtual double GetZoomLevelForHostAndScheme( |
36 const std::string& scheme, | 36 const std::string& scheme, |
37 const std::string& host) const OVERRIDE; | 37 const std::string& host) const OVERRIDE; |
38 virtual bool HasZoomLevel(const std::string& scheme, | |
39 const std::string& host) const OVERRIDE; | |
38 virtual ZoomLevelVector GetAllZoomLevels() const OVERRIDE; | 40 virtual ZoomLevelVector GetAllZoomLevels() const OVERRIDE; |
39 virtual void SetZoomLevelForHost( | 41 virtual void SetZoomLevelForHost( |
40 const std::string& host, | 42 const std::string& host, |
41 double level) OVERRIDE; | 43 double level) OVERRIDE; |
42 virtual void SetZoomLevelForHostAndScheme( | 44 virtual void SetZoomLevelForHostAndScheme( |
43 const std::string& scheme, | 45 const std::string& scheme, |
44 const std::string& host, | 46 const std::string& host, |
45 double level) OVERRIDE; | 47 double level) OVERRIDE; |
48 virtual bool UsesTemporaryZoomLevel(int render_process_id, | |
49 int render_view_id) const OVERRIDE; | |
50 virtual void SetTemporaryZoomLevel(int render_process_id, | |
Fady Samuel
2014/06/10 20:05:13
Alphabetize.
wjmaclean
2014/06/10 20:18:54
Everything, or just the newly added stuff?
| |
51 int render_view_id, | |
52 double level) OVERRIDE; | |
53 virtual void SendTemporaryZoomLevelChange(int render_process_id, | |
54 int render_view_id) const OVERRIDE; | |
55 | |
56 virtual void ClearTemporaryZoomLevel(int render_process_id, | |
57 int render_view_id) OVERRIDE; | |
46 virtual double GetDefaultZoomLevel() const OVERRIDE; | 58 virtual double GetDefaultZoomLevel() const OVERRIDE; |
47 virtual void SetDefaultZoomLevel(double level) OVERRIDE; | 59 virtual void SetDefaultZoomLevel(double level) OVERRIDE; |
48 virtual scoped_ptr<Subscription> AddZoomLevelChangedCallback( | 60 virtual scoped_ptr<Subscription> AddZoomLevelChangedCallback( |
49 const ZoomLevelChangedCallback& callback) OVERRIDE; | 61 const ZoomLevelChangedCallback& callback) OVERRIDE; |
50 | 62 |
51 // Returns the current zoom level for the specified WebContents. This may | 63 // Returns the current zoom level for the specified WebContents. This may |
52 // be a temporary zoom level, depending on UsesTemporaryZoomLevel(). | 64 // be a temporary zoom level, depending on UsesTemporaryZoomLevel(). |
53 double GetZoomLevelForWebContents( | 65 double GetZoomLevelForWebContents( |
54 const WebContentsImpl& web_contents_impl) const; | 66 const WebContentsImpl& web_contents_impl) const; |
55 | 67 |
56 // Sets the zoom level for this WebContents. If this WebContents is using | 68 // Sets the zoom level for this WebContents. If this WebContents is using |
57 // a temporary zoom level, then level is only applied to this WebContents. | 69 // a temporary zoom level, then level is only applied to this WebContents. |
58 // Otherwise, the level will be applied on a host level. | 70 // Otherwise, the level will be applied on a host level. |
59 void SetZoomLevelForWebContents(const WebContentsImpl& web_contents_impl, | 71 void SetZoomLevelForWebContents(const WebContentsImpl& web_contents_impl, |
60 double level); | 72 double level); |
61 | 73 |
62 // Sets the zoom level for the specified view. The level may be set for only | 74 // Sets the zoom level for the specified view. The level may be set for only |
63 // this view, or for the host, depending on UsesTemporaryZoomLevel(). | 75 // this view, or for the host, depending on UsesTemporaryZoomLevel(). |
64 void SetZoomLevelForView(int render_process_id, | 76 void SetZoomLevelForView(int render_process_id, |
65 int render_view_id, | 77 int render_view_id, |
66 double level, | 78 double level, |
67 const std::string& host); | 79 const std::string& host); |
68 | 80 |
69 // Returns whether the view manages its zoom level independently of other tabs | |
70 // displaying content from the same host. | |
71 bool UsesTemporaryZoomLevel(int render_process_id, int render_view_id) const; | |
72 | 81 |
73 // Sets whether the view manages its zoom level independently of other tabs | 82 // Sets whether the view manages its zoom level independently of other tabs |
74 // displaying content from the same host, based on whether | 83 // displaying content from the same host, based on whether |
75 // |uses_temporary_zoom_level| is true. | 84 // |uses_temporary_zoom_level| is true. |
76 void SetUsesTemporaryZoomLevel(int render_process_id, | 85 void SetUsesTemporaryZoomLevel(int render_process_id, |
77 int render_view_id, | 86 int render_view_id, |
78 bool uses_temporary_zoom_level); | 87 bool uses_temporary_zoom_level); |
79 | 88 |
80 // Returns the temporary zoom level that's only valid for the lifetime of | 89 // Returns the temporary zoom level that's only valid for the lifetime of |
81 // the given WebContents (i.e. isn't saved and doesn't affect other | 90 // the given WebContents (i.e. isn't saved and doesn't affect other |
82 // WebContentses) if it exists, the default zoom level otherwise. | 91 // WebContentses) if it exists, the default zoom level otherwise. |
83 // | 92 // |
84 // This may be called on any thread. | 93 // This may be called on any thread. |
85 double GetTemporaryZoomLevel(int render_process_id, | 94 double GetTemporaryZoomLevel(int render_process_id, |
86 int render_view_id) const; | 95 int render_view_id) const; |
87 | 96 |
88 // Sets the temporary zoom level that's only valid for the lifetime of this | |
89 // WebContents. | |
90 // | |
91 // This should only be called on the UI thread. | |
92 void SetTemporaryZoomLevel(int render_process_id, | |
93 int render_view_id, | |
94 double level); | |
95 | |
96 // NotificationObserver implementation. | 97 // NotificationObserver implementation. |
97 virtual void Observe(int type, | 98 virtual void Observe(int type, |
98 const NotificationSource& source, | 99 const NotificationSource& source, |
99 const NotificationDetails& details) OVERRIDE; | 100 const NotificationDetails& details) OVERRIDE; |
100 | 101 |
101 private: | 102 private: |
102 typedef std::map<std::string, double> HostZoomLevels; | 103 typedef std::map<std::string, double> HostZoomLevels; |
103 typedef std::map<std::string, HostZoomLevels> SchemeHostZoomLevels; | 104 typedef std::map<std::string, HostZoomLevels> SchemeHostZoomLevels; |
104 | 105 |
105 struct TemporaryZoomLevel { | 106 struct TemporaryZoomLevel { |
106 TemporaryZoomLevel(int process_id, int view_id, double level); | 107 TemporaryZoomLevel(int process_id, int view_id, double level); |
107 TemporaryZoomLevel(int process_id, int view_id); | 108 TemporaryZoomLevel(int process_id, int view_id); |
108 bool operator==(const TemporaryZoomLevel& other) const; | 109 bool operator==(const TemporaryZoomLevel& other) const; |
109 | 110 |
110 int render_process_id; | 111 int render_process_id; |
111 int render_view_id; | 112 int render_view_id; |
112 double zoom_level; | 113 double zoom_level; |
113 }; | 114 }; |
114 | 115 |
115 typedef std::vector<TemporaryZoomLevel> TemporaryZoomLevels; | 116 typedef std::vector<TemporaryZoomLevel> TemporaryZoomLevels; |
116 | 117 |
117 double GetZoomLevelForHost(const std::string& host) const; | 118 double GetZoomLevelForHost(const std::string& host) const; |
118 | 119 |
120 // Notifies the renderers from this browser context to change the zoom level | |
121 // for the specified host and scheme. | |
122 void SendZoomLevelChange(const std::string& scheme, | |
123 const std::string& host, | |
124 double level); | |
125 | |
119 // Callbacks called when zoom level changes. | 126 // Callbacks called when zoom level changes. |
120 base::CallbackList<void(const ZoomLevelChange&)> | 127 base::CallbackList<void(const ZoomLevelChange&)> |
121 zoom_level_changed_callbacks_; | 128 zoom_level_changed_callbacks_; |
122 | 129 |
123 // Copy of the pref data, so that we can read it on the IO thread. | 130 // Copy of the pref data, so that we can read it on the IO thread. |
124 HostZoomLevels host_zoom_levels_; | 131 HostZoomLevels host_zoom_levels_; |
125 SchemeHostZoomLevels scheme_host_zoom_levels_; | 132 SchemeHostZoomLevels scheme_host_zoom_levels_; |
126 double default_zoom_level_; | 133 double default_zoom_level_; |
127 | 134 |
128 // Don't expect more than a couple of tabs that are using a temporary zoom | 135 // Don't expect more than a couple of tabs that are using a temporary zoom |
129 // level, so vector is fine for now. | 136 // level, so vector is fine for now. |
130 TemporaryZoomLevels temporary_zoom_levels_; | 137 TemporaryZoomLevels temporary_zoom_levels_; |
Fady Samuel
2014/06/10 20:05:13
This is a pretty bad data structure to use as we'r
wjmaclean
2014/06/10 20:18:54
Done.
| |
131 | 138 |
132 // Used around accesses to |host_zoom_levels_|, |default_zoom_level_| and | 139 // Used around accesses to |host_zoom_levels_|, |default_zoom_level_| and |
133 // |temporary_zoom_levels_| to guarantee thread safety. | 140 // |temporary_zoom_levels_| to guarantee thread safety. |
134 mutable base::Lock lock_; | 141 mutable base::Lock lock_; |
135 | 142 |
136 NotificationRegistrar registrar_; | 143 NotificationRegistrar registrar_; |
137 | 144 |
138 DISALLOW_COPY_AND_ASSIGN(HostZoomMapImpl); | 145 DISALLOW_COPY_AND_ASSIGN(HostZoomMapImpl); |
139 }; | 146 }; |
140 | 147 |
141 } // namespace content | 148 } // namespace content |
142 | 149 |
143 #endif // CONTENT_BROWSER_HOST_ZOOM_MAP_IMPL_H_ | 150 #endif // CONTENT_BROWSER_HOST_ZOOM_MAP_IMPL_H_ |
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