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Side by Side Diff: content/public/browser/host_zoom_map.h

Issue 393133002: Migrate HostZoomMap to live in StoragePartition. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebase to r288093. Created 6 years, 4 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_PUBLIC_BROWSER_HOST_ZOOM_MAP_H_ 5 #ifndef CONTENT_PUBLIC_BROWSER_HOST_ZOOM_MAP_H_
6 #define CONTENT_PUBLIC_BROWSER_HOST_ZOOM_MAP_H_ 6 #define CONTENT_PUBLIC_BROWSER_HOST_ZOOM_MAP_H_
7 7
8 #include <map> 8 #include <map>
9 #include <string> 9 #include <string>
10 #include <vector> 10 #include <vector>
11 11
12 #include "base/basictypes.h" 12 #include "base/basictypes.h"
13 #include "base/callback.h" 13 #include "base/callback.h"
14 #include "base/callback_list.h" 14 #include "base/callback_list.h"
15 #include "content/common/content_export.h" 15 #include "content/common/content_export.h"
16 #include "url/gurl.h"
16 17
17 namespace content { 18 namespace content {
18 19
19 class BrowserContext; 20 class BrowserContext;
20 class ResourceContext; 21 class ResourceContext;
22 class SiteInstance;
21 class WebContents; 23 class WebContents;
22 24
23 // Maps hostnames to custom zoom levels. Written on the UI thread and read on 25 // Maps hostnames to custom zoom levels. Written on the UI thread and read on
24 // any thread. One instance per browser context. Must be created on the UI 26 // any thread. One instance per browser context. Must be created on the UI
25 // thread, and it'll delete itself on the UI thread as well. 27 // thread, and it'll delete itself on the UI thread as well.
26 // Zoom can be defined at three levels: default zoom, zoom for host, and zoom 28 // Zoom can be defined at three levels: default zoom, zoom for host, and zoom
27 // for host with specific scheme. Setting any of the levels leaves settings 29 // for host with specific scheme. Setting any of the levels leaves settings
28 // for other settings intact. Getting the zoom level starts at the most 30 // for other settings intact. Getting the zoom level starts at the most
29 // specific setting and progresses to the less specific: first the zoom for the 31 // specific setting and progresses to the less specific: first the zoom for the
30 // host and scheme pair is checked, secondly the zoom for the host only and 32 // host and scheme pair is checked, secondly the zoom for the host only and
(...skipping 17 matching lines...) Expand all
48 std::string host; 50 std::string host;
49 std::string scheme; 51 std::string scheme;
50 double zoom_level; 52 double zoom_level;
51 }; 53 };
52 54
53 typedef std::vector<ZoomLevelChange> ZoomLevelVector; 55 typedef std::vector<ZoomLevelChange> ZoomLevelVector;
54 56
55 CONTENT_EXPORT static HostZoomMap* GetForBrowserContext( 57 CONTENT_EXPORT static HostZoomMap* GetForBrowserContext(
56 BrowserContext* browser_context); 58 BrowserContext* browser_context);
57 59
60 CONTENT_EXPORT static HostZoomMap* GetForSite(SiteInstance* instance);
awong 2014/08/11 22:36:33 What does this mean semantically? Not saying thi
wjmaclean 2014/08/12 16:57:44 I'm assuming there's a one-to-one relationship bet
Fady Samuel 2014/08/13 19:45:42 The signin page currently uses a different storage
61
62 CONTENT_EXPORT static HostZoomMap* GetForWebContents(
63 const WebContents* contents);
64
58 // Returns the current zoom level for the specified WebContents. May be 65 // Returns the current zoom level for the specified WebContents. May be
59 // temporary or host-specific. 66 // temporary or host-specific.
60 CONTENT_EXPORT static double GetZoomLevel(const WebContents* web_contents); 67 CONTENT_EXPORT static double GetZoomLevel(const WebContents* web_contents);
61 68
62 // Sets the current zoom level for the specified WebContents. The level may 69 // Sets the current zoom level for the specified WebContents. The level may
63 // be temporary or host-specific depending on the particular WebContents. 70 // be temporary or host-specific depending on the particular WebContents.
64 CONTENT_EXPORT static void SetZoomLevel(const WebContents* web_contents, 71 CONTENT_EXPORT static void SetZoomLevel(const WebContents* web_contents,
65 double level); 72 double level);
66 73
67 // Copy the zoom levels from the given map. Can only be called on the UI 74 // Copy the zoom levels from the given map. Can only be called on the UI
(...skipping 71 matching lines...) Expand 10 before | Expand all | Expand 10 after
139 virtual scoped_ptr<Subscription> AddZoomLevelChangedCallback( 146 virtual scoped_ptr<Subscription> AddZoomLevelChangedCallback(
140 const ZoomLevelChangedCallback& callback) = 0; 147 const ZoomLevelChangedCallback& callback) = 0;
141 148
142 protected: 149 protected:
143 virtual ~HostZoomMap() {} 150 virtual ~HostZoomMap() {}
144 }; 151 };
145 152
146 } // namespace content 153 } // namespace content
147 154
148 #endif // CONTENT_PUBLIC_BROWSER_HOST_ZOOM_MAP_H_ 155 #endif // CONTENT_PUBLIC_BROWSER_HOST_ZOOM_MAP_H_
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