New Pepper API implementation.

webkit/glue/plugins/pepper_resource.h

+// 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 WEBKIT_GLUE_PLUGINS_PEPPER_RESOURCE_H_
+#define WEBKIT_GLUE_PLUGINS_PEPPER_RESOURCE_H_
+
+#include "base/basictypes.h"
+#include "base/ref_counted.h"
+
+typedef struct _pp_Resource PP_Resource;
+
+namespace pepper {
+
+class DeviceContext2D;
+class ImageData;
+class PluginModule;
+
+class Resource : public base::RefCountedThreadSafe<Resource> {
+ public:
+  explicit Resource(PluginModule* module);
+  virtual ~Resource();
+
+  PP_Resource GetResource() const;
+
+  PluginModule* module() const { return module_; }
+
+  // Type-specific getters for individual resource types. These will return
+  // NULL if the resource does not match the specified type.
+  virtual DeviceContext2D* AsDeviceContext2D() { return NULL; }
+  virtual ImageData* AsImageData() { return NULL; }
+
+ private:
+  PluginModule* module_;  // Non-owning pointer to our module.
+
+  DISALLOW_COPY_AND_ASSIGN(Resource);
+};
+
+// Returns a "NULL" resource. This is just a helper function so callers
+// can avoid creating a resource with a 0 ID.
+PP_Resource NullPPResource();
+
+}  // namespace pepper
+
+#endif  // WEBKIT_GLUE_PLUGINS_PEPPER_RESOURCE_H_