1 files changed, 67 insertions, 0 deletions
diff --git a/webkit/plugins/ppapi/ppb_scrollbar_impl.h b/webkit/plugins/ppapi/ppb_scrollbar_impl.h
new file mode 100644
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+++ b/webkit/plugins/ppapi/ppb_scrollbar_impl.h
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+// 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_PLUGINS_PPAPI_PPB_SCROLLBAR_IMPL_H_
+#define WEBKIT_PLUGINS_PPAPI_PPB_SCROLLBAR_IMPL_H_
+
+#include <vector>
+
+#include "gfx/rect.h"
+#include "ppapi/c/dev/ppb_scrollbar_dev.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebRect.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebScrollbarClient.h"
+#include "webkit/plugins/ppapi/ppb_widget_impl.h"
+
+namespace webkit {
+namespace ppapi {
+
+class PluginInstance;
+
+class PPB_Scrollbar_Impl : public PPB_Widget_Impl,
+                           public WebKit::WebScrollbarClient {
+ public:
+  PPB_Scrollbar_Impl(PluginInstance* instance, bool vertical);
+  virtual ~PPB_Scrollbar_Impl();
+
+  // Returns a pointer to the interface implementing PPB_Scrollbar that is
+  // exposed to the plugin.
+  static const PPB_Scrollbar_Dev* GetInterface();
+
+  // Resource overrides.
+  virtual PPB_Scrollbar_Impl* AsPPB_Scrollbar_Impl();
+
+  // PPB_Scrollbar implementation.
+  uint32_t GetValue();
+  void SetValue(uint32_t value);
+  void SetDocumentSize(uint32_t size);
+  void SetTickMarks(const PP_Rect* tick_marks, uint32_t count);
+  void ScrollBy(PP_ScrollBy_Dev unit, int32_t multiplier);
+
+  // PPB_Widget implementation.
+  virtual bool Paint(const PP_Rect* rect, PPB_ImageData_Impl* image);
+  virtual bool HandleEvent(const PP_InputEvent* event);
+  virtual void SetLocationInternal(const PP_Rect* location);
+
+ private:
+  // WebKit::WebScrollbarClient implementation.
+  virtual void valueChanged(WebKit::WebScrollbar* scrollbar);
+  virtual void invalidateScrollbarRect(WebKit::WebScrollbar* scrollbar,
+                                       const WebKit::WebRect& rect);
+  virtual void getTickmarks(
+      WebKit::WebScrollbar* scrollbar,
+      WebKit::WebVector<WebKit::WebRect>* tick_marks) const;
+
+  void NotifyInvalidate();
+
+  gfx::Rect dirty_;
+  std::vector<WebKit::WebRect> tickmarks_;
+  scoped_ptr<WebKit::WebScrollbar> scrollbar_;
+
+  DISALLOW_COPY_AND_ASSIGN(PPB_Scrollbar_Impl);
+};
+
+}  // namespace ppapi
+}  // namespace webkit
+
+#endif  // WEBKIT_PLUGINS_PPAPI_PPB_SCROLLBAR_IMPL_H_