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Side by Side Diff: content/browser/host_zoom_map_impl.h

Issue 226523006: Changes to content/ to facilitate new zoom extension API (work in progress) (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 8 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 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 23 matching lines...) Expand all
34 const std::string& scheme, 34 const std::string& scheme,
35 const std::string& host) const OVERRIDE; 35 const std::string& host) const OVERRIDE;
36 virtual ZoomLevelVector GetAllZoomLevels() const OVERRIDE; 36 virtual ZoomLevelVector GetAllZoomLevels() const OVERRIDE;
37 virtual void SetZoomLevelForHost( 37 virtual void SetZoomLevelForHost(
38 const std::string& host, 38 const std::string& host,
39 double level) OVERRIDE; 39 double level) OVERRIDE;
40 virtual void SetZoomLevelForHostAndScheme( 40 virtual void SetZoomLevelForHostAndScheme(
41 const std::string& scheme, 41 const std::string& scheme,
42 const std::string& host, 42 const std::string& host,
43 double level) OVERRIDE; 43 double level) OVERRIDE;
44 virtual void SetTemporaryZoomLevel(int render_process_id,
45 int render_view_id,
46 const std::string& host,
47 double level) OVERRIDE;
48 virtual void EraseTemporaryZoomLevel(int render_process_id,
49 int render_view_id) OVERRIDE;
44 virtual double GetDefaultZoomLevel() const OVERRIDE; 50 virtual double GetDefaultZoomLevel() const OVERRIDE;
45 virtual void SetDefaultZoomLevel(double level) OVERRIDE; 51 virtual void SetDefaultZoomLevel(double level) OVERRIDE;
46 virtual scoped_ptr<Subscription> AddZoomLevelChangedCallback( 52 virtual scoped_ptr<Subscription> AddZoomLevelChangedCallback(
47 const ZoomLevelChangedCallback& callback) OVERRIDE; 53 const ZoomLevelChangedCallback& callback) OVERRIDE;
48 54
49 // Returns the temporary zoom level that's only valid for the lifetime of 55 // Returns the temporary zoom level that's only valid for the lifetime of
50 // the given WebContents (i.e. isn't saved and doesn't affect other 56 // the given WebContents (i.e. isn't saved and doesn't affect other
51 // WebContentses) if it exists, the default zoom level otherwise. 57 // WebContentses) if it exists, the default zoom level otherwise.
52 // 58 //
53 // This may be called on any thread. 59 // This may be called on any thread.
54 double GetTemporaryZoomLevel(int render_process_id, 60 double GetTemporaryZoomLevel(int render_process_id,
55 int render_view_id) const; 61 int render_view_id) const;
56 62
57 // Sets the temporary zoom level that's only valid for the lifetime of this
58 // WebContents.
59 //
60 // This should only be called on the UI thread.
61 void SetTemporaryZoomLevel(int render_process_id,
62 int render_view_id,
63 double level);
64
65 // NotificationObserver implementation. 63 // NotificationObserver implementation.
66 virtual void Observe(int type, 64 virtual void Observe(int type,
67 const NotificationSource& source, 65 const NotificationSource& source,
68 const NotificationDetails& details) OVERRIDE; 66 const NotificationDetails& details) OVERRIDE;
69 67
70 private: 68 private:
71 double GetZoomLevelForHost(const std::string& host) const; 69 double GetZoomLevelForHost(const std::string& host) const;
72 70
71 // Notifies the renderers from this browser context to change the zoom level
72 // for the specified host and scheme.
73 void SendZoomLevelChange(const std::string& scheme,
74 const std::string& host,
75 double level);
76
73 typedef std::map<std::string, double> HostZoomLevels; 77 typedef std::map<std::string, double> HostZoomLevels;
74 typedef std::map<std::string, HostZoomLevels> SchemeHostZoomLevels; 78 typedef std::map<std::string, HostZoomLevels> SchemeHostZoomLevels;
75 79
76 // Callbacks called when zoom level changes. 80 // Callbacks called when zoom level changes.
77 base::CallbackList<void(const ZoomLevelChange&)> 81 base::CallbackList<void(const ZoomLevelChange&)>
78 zoom_level_changed_callbacks_; 82 zoom_level_changed_callbacks_;
79 83
80 // Copy of the pref data, so that we can read it on the IO thread. 84 // Copy of the pref data, so that we can read it on the IO thread.
81 HostZoomLevels host_zoom_levels_; 85 HostZoomLevels host_zoom_levels_;
82 SchemeHostZoomLevels scheme_host_zoom_levels_; 86 SchemeHostZoomLevels scheme_host_zoom_levels_;
(...skipping 14 matching lines...) Expand all
97 mutable base::Lock lock_; 101 mutable base::Lock lock_;
98 102
99 NotificationRegistrar registrar_; 103 NotificationRegistrar registrar_;
100 104
101 DISALLOW_COPY_AND_ASSIGN(HostZoomMapImpl); 105 DISALLOW_COPY_AND_ASSIGN(HostZoomMapImpl);
102 }; 106 };
103 107
104 } // namespace content 108 } // namespace content
105 109
106 #endif // CONTENT_BROWSER_HOST_ZOOM_MAP_IMPL_H_ 110 #endif // CONTENT_BROWSER_HOST_ZOOM_MAP_IMPL_H_
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