Index: chrome/browser/ui/zoom/zoom_level_prefs_store_impl.h |
diff --git a/chrome/browser/ui/zoom/zoom_level_prefs_store_impl.h b/chrome/browser/ui/zoom/zoom_level_prefs_store_impl.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..9413682d12c2a6a10fa44363d5bec1de89aced33 |
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+++ b/chrome/browser/ui/zoom/zoom_level_prefs_store_impl.h |
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+// Copyright (c) 2014 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef CHROME_BROWSER_UI_ZOOM_ZOOM_LEVEL_PREFS_STORE_IMPL_H_ |
+#define CHROME_BROWSER_UI_ZOOM_ZOOM_LEVEL_PREFS_STORE_IMPL_H_ |
+ |
+#include "content/public/browser/zoom_level_prefs_store.h" |
+ |
+#include "base/macros.h" |
+#include "base/memory/ref_counted.h" |
+#include "base/prefs/json_pref_store.h" |
+#include "base/prefs/pref_store.h" |
+#include "chrome/browser/prefs/pref_service_syncable.h" |
+#include "content/public/browser/host_zoom_map.h" |
+ |
+namespace chrome { |
+ |
+// A class to implement ZoomLevelPrefsStore. It also implements |
+// PrefStore::Observer so that it can track changes to the prefs. |
+// Finally, the prefs are also updated in response to zoom events |
+// from HostZoomMap. |
+class ZoomLevelPrefsStoreImpl : public PrefStore::Observer, |
+ public content::ZoomLevelPrefsStore { |
+ public: |
+ ZoomLevelPrefsStoreImpl(); |
+ virtual ~ZoomLevelPrefsStoreImpl(); |
+ void OnZoomLevelChanged(const content::HostZoomMap::ZoomLevelChange& change); |
+ |
+ // Implement ZoomLevelPrefsStore. |
+ virtual void InitPrefsAndCopyToHostZoomMap( |
+ const base::FilePath& file_path, |
+ content::HostZoomMap* host_zoom_map) OVERRIDE; |
+ virtual PrefService* GetPrefs() OVERRIDE; |
+ |
+ // Implement PrefObserver. |
+ virtual void OnPrefValueChanged(const std::string& key) OVERRIDE; |
+ virtual void OnInitializationCompleted(bool succeeded) OVERRIDE; |
+ |
+ private: |
+ |
+ scoped_refptr<JsonPrefStore> zoom_level_prefs_; |
+ scoped_ptr<PrefServiceSyncable> pref_service_; |
+ scoped_ptr<content::HostZoomMap::Subscription> zoom_subscription_; |
+ content::HostZoomMap* host_zoom_map_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(ZoomLevelPrefsStoreImpl); |
+}; |
+ |
+} // namespace chrome |
+ |
+#endif // CHROME_BROWSER_UI_ZOOM_ZOOM_LEVEL_PREFS_STORE_IMPL_H_ |