TestPlugin to chromium c++ style.

content/shell/renderer/test_runner/test_plugin.h

+// Copyright 2013 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 CONTENT_SHELL_RENDERER_TEST_RUNNER_TEST_PLUGIN_H_
+#define CONTENT_SHELL_RENDERER_TEST_RUNNER_TEST_PLUGIN_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "cc/layers/texture_layer.h"
+#include "cc/layers/texture_layer_client.h"
+#include "content/public/test/layouttest_support.h"
+#include "third_party/WebKit/public/platform/WebExternalTextureLayer.h"
+#include "third_party/WebKit/public/platform/WebExternalTextureLayerClient.h"
+#include "third_party/WebKit/public/platform/WebExternalTextureMailbox.h"
+#include "third_party/WebKit/public/platform/WebLayer.h"
+#include "third_party/WebKit/public/web/WebPlugin.h"
+#include "third_party/WebKit/public/web/WebPluginContainer.h"
+
+namespace blink {
+class WebFrame;
+class WebLayer;
+}
+
+namespace content {
+
+class WebTestDelegate;
+
+// A fake implemention of blink::WebPlugin for testing purposes.
+//
+// It uses WebGraphicsContext3D to paint a scene consisiting of a primitive
+// over a background. The primitive and background can be customized using
+// the following plugin parameters:
+// primitive: none (default), triangle.
+// background-color: black (default), red, green, blue.
+// primitive-color: black (default), red, green, blue.
+// opacity: [0.0 - 1.0]. Default is 1.0.
+//
+// Whether the plugin accepts touch events or not can be customized using the
+// 'accepts-touch' plugin parameter (defaults to false).
+class TestPlugin : public blink::WebPlugin, public cc::TextureLayerClient {
+ public:
+  static TestPlugin* create(blink::WebFrame* frame,
+                            const blink::WebPluginParams& params,
+                            WebTestDelegate* delegate);
+  virtual ~TestPlugin();
+
+  static const blink::WebString& MimeType();
+  static const blink::WebString& CanCreateWithoutRendererMimeType();
+  static const blink::WebString& PluginPersistsMimeType();
+  static bool IsSupportedMimeType(const blink::WebString& mime_type);
+
+  // WebPlugin methods:
+  virtual bool initialize(blink::WebPluginContainer* container);
+  virtual void destroy();
+  virtual NPObject* scriptableObject();
+  virtual bool canProcessDrag() const;
+  virtual void paint(blink::WebCanvas* canvas, const blink::WebRect& rect) {}
+  virtual void updateGeometry(
+      const blink::WebRect& frame_rect,
+      const blink::WebRect& clip_rect,
+      const blink::WebVector<blink::WebRect>& cut_outs_rects,
+      bool is_visible);
+  virtual void updateFocus(bool focus) {}
+  virtual void updateVisibility(bool visibility) {}
+  virtual bool acceptsInputEvents();
+  virtual bool handleInputEvent(const blink::WebInputEvent& event,
+                                blink::WebCursorInfo& info);
+  virtual bool handleDragStatusUpdate(blink::WebDragStatus drag_status,
+                                      const blink::WebDragData& data,
+                                      blink::WebDragOperationsMask mask,
+                                      const blink::WebPoint& position,
+                                      const blink::WebPoint& screen_position);
+  virtual void didReceiveResponse(const blink::WebURLResponse& response) {}
+  virtual void didReceiveData(const char* data, int data_length) {}
+  virtual void didFinishLoading() {}
+  virtual void didFailLoading(const blink::WebURLError& error) {}
+  virtual void didFinishLoadingFrameRequest(const blink::WebURL& url,
+                                            void* notify_data) {}
+  virtual void didFailLoadingFrameRequest(const blink::WebURL& url,
+                                          void* notify_data,
+                                          const blink::WebURLError& error) {}
+  virtual bool isPlaceholder();
+
+  // cc::TextureLayerClient methods:
+  virtual bool PrepareTextureMailbox(
+      cc::TextureMailbox* mailbox,
+      scoped_ptr<cc::SingleReleaseCallback>* release_callback,
+      bool use_shared_memory) OVERRIDE;
+
+ private:
+  TestPlugin(blink::WebFrame* frame,
+             const blink::WebPluginParams& params,
+             WebTestDelegate* delegate);
+
+  enum Primitive { PrimitiveNone, PrimitiveTriangle };
+
+  struct Scene {
+    Primitive primitive;
+    unsigned background_color[3];
+    unsigned primitive_color[3];
+    float opacity;
+
+    unsigned vbo;
+    unsigned program;
+    int color_location;
+    int position_location;
+
+    Scene()
+        : primitive(PrimitiveNone),
+          opacity(1.0f)  // Fully opaque.
+          ,
+          vbo(0),
+          program(0),
+          color_location(-1),
+          position_location(-1) {
+      background_color[0] = background_color[1] = background_color[2] = 0;
+      primitive_color[0] = primitive_color[1] = primitive_color[2] = 0;
+    }
+  };
+
+  // Functions for parsing plugin parameters.
+  Primitive ParsePrimitive(const blink::WebString& string);
+  void ParseColor(const blink::WebString& string, unsigned color[3]);
+  float ParseOpacity(const blink::WebString& string);
+  bool ParseBoolean(const blink::WebString& string);
+
+  // Functions for loading and drawing scene in GL.
+  bool InitScene();
+  void DrawSceneGL();
+  void DestroyScene();
+  bool InitProgram();
+  bool InitPrimitive();
+  void DrawPrimitive();
+  unsigned LoadShader(unsigned type, const std::string& source);
+  unsigned LoadProgram(const std::string& vertex_source,
+                       const std::string& fragment_source);
+
+  // Functions for drawing scene in Software.
+  void DrawSceneSoftware(void* memory, size_t bytes);
+
+  blink::WebFrame* frame_;
+  WebTestDelegate* delegate_;
+  blink::WebPluginContainer* container_;
+
+  blink::WebRect rect_;
+  blink::WebGraphicsContext3D* context_;
+  unsigned color_texture_;
+  cc::TextureMailbox texture_mailbox_;
+  scoped_ptr<base::SharedMemory> shared_bitmap_;
+  bool mailbox_changed_;
+  unsigned framebuffer_;
+  Scene scene_;
+  scoped_refptr<cc::TextureLayer> layer_;
+  scoped_ptr<blink::WebLayer> web_layer_;
+
+  blink::WebPluginContainer::TouchEventRequestType touch_event_request_;
+  // Requests touch events from the WebPluginContainerImpl multiple times to
+  // tickle webkit.org/b/108381
+  bool re_request_touch_events_;
+  bool print_event_details_;
+  bool print_user_gesture_status_;
+  bool can_process_drag_;
+
+  bool is_persistent_;
+  bool can_create_without_renderer_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestPlugin);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_TEST_PLUGIN_H_