| // Copyright (c) 2010 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 APP_VIEW_PROP_H_ |
| #define APP_VIEW_PROP_H_ |
| #pragma once |
| |
| #include "base/basictypes.h" |
| #include "base/ref_counted.h" |
| #include "gfx/native_widget_types.h" |
| |
| namespace app { |
| |
| // ViewProp maintains a key/value pair for a particular view. ViewProp is |
| // designed as a replacement for the Win32's SetProp, but does not make use of |
| // window manager memory. ViewProp shares similar semantics as SetProp, the |
| // value for a particular view/key pair comes from the last ViewProp created. |
| class ViewProp { |
| public: |
| // Associates data with a view/key pair. If a ViewProp has already been |
| // created for the specified pair |data| replaces the current value. |
| // |
| // ViewProp does *not* make a copy of the char*, the pointer is used for |
| // sorting. |
| ViewProp(gfx::NativeView view, const char* key, void* data); |
| ~ViewProp(); |
| |
| // Returns the value associated with the view/key pair, or NULL if there is |
| // none. |
| static void* GetValue(gfx::NativeView view, const char* key); |
| |
| // Returns the key. |
| const char* Key() const; |
| |
| private: |
| class Data; |
| |
| // Stores the actual data. |
| scoped_refptr<Data> data_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ViewProp); |
| }; |
| |
| } // namespace app |
| |
| #endif // APP_VIEW_PROP_H_ |