Add new widget API to Pepper to replace the old theming API. The implementation is a copy of the WebKit code, I will figure out how to reuse it soon.

Review URL: http://codereview.chromium.org/2011004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@46710 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 41 insertions, 0 deletions

diff --git a/chrome/renderer/pepper_widget.h b/chrome/renderer/pepper_widget.h
new file mode 100644
index 0000000..1cc84f6
--- /dev/null
+++ b/chrome/renderer/pepper_widget.h
@@ -0,0 +1,41 @@
+// 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 CHROME_RENDERER_PEPPER_WIDGET_H_
+#define CHROME_RENDERER_PEPPER_WIDGET_H_
+
+#include "base/basictypes.h"
+#include "third_party/npapi/bindings/npapi_extensions.h"
+
+class Graphics2DDeviceContext;
+
+// Every class that implements a Pepper widget derives from this.
+class PepperWidget {
+ public:
+  static NPWidgetExtensions* GetWidgetExtensions();
+
+  PepperWidget();
+  void Init(NPP instance, int id);
+
+  // Called as a result of the corresponding Pepper functions.
+  virtual void Destroy() = 0;
+  virtual void Paint(Graphics2DDeviceContext* context, const NPRect& dirty) = 0;
+  virtual bool HandleEvent(const NPPepperEvent& event) = 0;
+  virtual void GetProperty(NPWidgetProperty property, void* value) = 0;
+  virtual void SetProperty(NPWidgetProperty property, void* value) = 0;
+
+ protected:
+  ~PepperWidget();
+
+  // Tells the plugin that a property changed.
+  void WidgetPropertyChanged(NPWidgetProperty property);
+
+ private:
+  NPP instance_;
+  int id_;
+
+  DISALLOW_COPY_AND_ASSIGN(PepperWidget);
+};
+
+#endif  // CHROME_RENDERER_PEPPER_WIDGET_H_