Render using WebPaintSurface.

webkit/tools/test_shell/simple_webpaintsurface_impl.h

+// Copyright (c) 2011 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_TOOLS_TEST_SHELL_SIMPLE_WEBPAINTSURFACE_IMPL_H_
+#define WEBKIT_TOOLS_TEST_SHELL_SIMPLE_WEBPAINTSURFACE_IMPL_H_
+
+#include "gfx/rect.h"
+#include "skia/ext/platform_canvas.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebPaintSurface.h"
+
+class SimpleWebPaintSurfaceImpl : public WebKit::WebPaintSurface {
+ public:
+  class Delegate {
+   public:
+    // Called when the paint surface is modified.  In response to this method,
+    // the delegate should asynchronously call DidCopyPaintSurface, which will
+    // permit further modifications to the paint surface.
+    virtual void DidModifyPaintSurface(const gfx::Rect& bounds) = 0;
+  };
+
+  SimpleWebPaintSurfaceImpl(Delegate* delegate, const gfx::Size& size);
+  ~SimpleWebPaintSurfaceImpl();
+
+  const gfx::Size& size() const { return size_; }
+  skia::PlatformCanvas* canvas() { return &canvas_; }
+
+  // Called asynchronously in response to DidModifyPaintSurface.
+  void DidCopyPaintSurface();
+
+ private:
+  // WebKit::WebPaintSurface methods:
+  virtual void setClient(WebKit::WebPaintSurfaceClient* client);
+  virtual WebKit::WebPaintBuffer* createBuffer(const WebKit::WebSize& size);
+  virtual void paint(WebKit::WebPaintBuffer* buffer,
+                     const WebKit::WebPoint& destination_point,
+                     const WebKit::WebRect& source_rect);
+  virtual void scroll(const WebKit::WebRect& clip_rect,
+                      const WebKit::WebPoint& scroll_delta);
+  virtual bool flush();
+
+  Delegate* delegate_;
+  gfx::Size size_;
+  skia::PlatformCanvas canvas_;
+  WebKit::WebPaintSurfaceClient* client_;
+  gfx::Rect damage_bounds_;
+  bool flushing_;
+};
+
+#endif  // WEBKIT_TOOLS_TEST_SHELL_SIMPLE_WEBPAINTSURFACE_IMPL_H_