chromium/third_party/blink/renderer/core/html/canvas/html_canvas_element.h

/*
 * Copyright (C) 2004, 2006, 2009, 2010 Apple Inc. All rights reserved.
 * Copyright (C) 2007 Alp Toker <[email protected]>
 * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CANVAS_HTML_CANVAS_ELEMENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CANVAS_HTML_CANVAS_ELEMENT_H_

#include <memory>

#include "base/gtest_prod_util.h"
#include "third_party/blink/public/common/privacy_budget/identifiable_surface.h"
#include "third_party/blink/public/common/privacy_budget/identifiable_token.h"
#include "third_party/blink/renderer/bindings/core/v8/script_value.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_blob_callback.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/core/html/canvas/canvas_rendering_context_host.h"
#include "third_party/blink/renderer/core/html/html_element.h"
#include "third_party/blink/renderer/core/imagebitmap/image_bitmap_source.h"
#include "third_party/blink/renderer/core/page/page_visibility_observer.h"
#include "third_party/blink/renderer/platform/graphics/canvas_resource_host.h"
#include "third_party/blink/renderer/platform/graphics/graphics_types.h"
#include "third_party/blink/renderer/platform/graphics/graphics_types_3d.h"
#include "third_party/blink/renderer/platform/graphics/offscreen_canvas_placeholder.h"
#include "third_party/blink/renderer/platform/graphics/static_bitmap_image.h"
#include "third_party/blink/renderer/platform/graphics/surface_layer_bridge.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_set.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/prefinalizer.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/gfx/geometry/size.h"

#define CanvasDefaultInterpolationQuality …

namespace blink {

class Canvas2DLayerBridge;
class CanvasContextCreationAttributesCore;
class CanvasDrawListener;
class CanvasHighDynamicRangeOptions;
class CanvasRenderingContext;
class CanvasRenderingContextFactory;
class CanvasResourceProvider;
class GraphicsContext;
class HTMLCanvasElement;
class ImageBitmapOptions;
class StaticBitmapImageToVideoFrameCopier;

class
    CanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingContextOrImageBitmapRenderingContextOrGPUCanvasContext;
RenderingContext;

// This contains the information of HTML Canvas Element,
// There are four different types of rendering context this HTML Canvas can own.
// It can be a 3D Context (WebGL or WebGL2), 2D Context,
// BitmapRenderingContext or it can have no context (Offscreen placeholder).
// To check the no context case is good to check if there is a placeholder.
class CORE_EXPORT HTMLCanvasElement final
    : public HTMLElement,
      public ExecutionContextLifecycleObserver,
      public PageVisibilityObserver,
      public CanvasRenderingContextHost,
      public WebSurfaceLayerBridgeObserver,
      public ImageBitmapSource,
      public OffscreenCanvasPlaceholder { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CANVAS_HTML_CANVAS_ELEMENT_H_