diff options
Diffstat (limited to 'chromium/third_party/WebKit/Source/core/page/ImageBitmapFactories.cpp')
| -rw-r--r-- | chromium/third_party/WebKit/Source/core/page/ImageBitmapFactories.cpp | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/core/page/ImageBitmapFactories.cpp b/chromium/third_party/WebKit/Source/core/page/ImageBitmapFactories.cpp new file mode 100644 index 00000000000..a68e94e4eae --- /dev/null +++ b/chromium/third_party/WebKit/Source/core/page/ImageBitmapFactories.cpp @@ -0,0 +1,223 @@ +/* + * Copyright (c) 2013, Google Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 THE COPYRIGHT + * OWNER 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. + */ + +#include "config.h" +#include "core/page/ImageBitmapFactories.h" + +#include "RuntimeEnabledFeatures.h" +#include "V8ImageBitmap.h" +#include "bindings/v8/ExceptionState.h" +#include "core/dom/ExceptionCode.h" +#include "core/html/HTMLCanvasElement.h" +#include "core/html/HTMLImageElement.h" +#include "core/html/HTMLVideoElement.h" +#include "core/html/ImageData.h" +#include "core/html/canvas/CanvasRenderingContext2D.h" +#include "core/page/DOMWindow.h" +#include "core/page/ImageBitmap.h" + +namespace WebCore { + +namespace ImageBitmapFactories { + +static LayoutSize sizeFor(HTMLImageElement* image) +{ + if (ImageResource* cachedImage = image->cachedImage()) + return cachedImage->imageSizeForRenderer(image->renderer(), 1.0f); // FIXME: Not sure about this. + return IntSize(); +} + +static IntSize sizeFor(HTMLVideoElement* video) +{ + if (MediaPlayer* player = video->player()) + return player->naturalSize(); + return IntSize(); +} + +static ScriptObject resolveImageBitmap(PassRefPtr<ImageBitmap> imageBitmap) +{ + // Promises must be enabled. + ASSERT(RuntimeEnabledFeatures::promiseEnabled()); + + RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(); + resolver->fulfill(imageBitmap); + return resolver->promise(); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, HTMLImageElement* image, ExceptionState& es) +{ + LayoutSize s = sizeFor(image); + return createImageBitmap(eventTarget, image, 0, 0, s.width(), s.height(), es); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, HTMLImageElement* image, int sx, int sy, int sw, int sh, ExceptionState& es) +{ + if (!image) { + es.throwTypeError(); + return ScriptObject(); + } + if (!image->cachedImage()) { + es.throwDOMException(InvalidStateError); + return ScriptObject(); + } + if (image->cachedImage()->image()->isSVGImage()) { + es.throwDOMException(InvalidStateError); + return ScriptObject(); + } + if (!sw || !sh) { + es.throwDOMException(IndexSizeError); + return ScriptObject(); + } + if (!image->cachedImage()->image()->hasSingleSecurityOrigin()) { + es.throwDOMException(SecurityError); + return ScriptObject(); + } + if (!image->cachedImage()->passesAccessControlCheck(eventTarget->toDOMWindow()->document()->securityOrigin()) + && eventTarget->toDOMWindow()->document()->securityOrigin()->taintsCanvas(image->src())) { + es.throwDOMException(SecurityError); + return ScriptObject(); + } + // FIXME: make ImageBitmap creation asynchronous crbug.com/258082 + return resolveImageBitmap(ImageBitmap::create(image, IntRect(sx, sy, sw, sh))); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, HTMLVideoElement* video, ExceptionState& es) +{ + IntSize s = sizeFor(video); + return createImageBitmap(eventTarget, video, 0, 0, s.width(), s.height(), es); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, HTMLVideoElement* video, int sx, int sy, int sw, int sh, ExceptionState& es) +{ + if (!video) { + es.throwTypeError(); + return ScriptObject(); + } + if (!video->player()) { + es.throwDOMException(InvalidStateError); + return ScriptObject(); + } + if (video->networkState() == HTMLMediaElement::NETWORK_EMPTY) { + es.throwDOMException(InvalidStateError); + return ScriptObject(); + } + if (video->player()->readyState() <= MediaPlayer::HaveMetadata) { + es.throwDOMException(InvalidStateError); + return ScriptObject(); + } + if (!sw || !sh) { + es.throwDOMException(IndexSizeError); + return ScriptObject(); + } + if (!video->hasSingleSecurityOrigin()) { + es.throwDOMException(SecurityError); + return ScriptObject(); + } + if (!video->player()->didPassCORSAccessCheck() && eventTarget->toDOMWindow()->document()->securityOrigin()->taintsCanvas(video->currentSrc())) { + es.throwDOMException(SecurityError); + return ScriptObject(); + } + // FIXME: make ImageBitmap creation asynchronous crbug.com/258082 + return resolveImageBitmap(ImageBitmap::create(video, IntRect(sx, sy, sw, sh))); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, CanvasRenderingContext2D* context, ExceptionState& es) +{ + return createImageBitmap(eventTarget, context->canvas(), es); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, CanvasRenderingContext2D* context, int sx, int sy, int sw, int sh, ExceptionState& es) +{ + return createImageBitmap(eventTarget, context->canvas(), sx, sy, sw, sh, es); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, HTMLCanvasElement* canvas, ExceptionState& es) +{ + return createImageBitmap(eventTarget, canvas, 0, 0, canvas->width(), canvas->height(), es); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, HTMLCanvasElement* canvas, int sx, int sy, int sw, int sh, ExceptionState& es) +{ + if (!canvas) { + es.throwTypeError(); + return ScriptObject(); + } + if (!canvas->originClean()) { + es.throwDOMException(InvalidStateError); + return ScriptObject(); + } + if (!sw || !sh) { + es.throwDOMException(IndexSizeError); + return ScriptObject(); + } + // FIXME: make ImageBitmap creation asynchronous crbug.com/258082 + return resolveImageBitmap(ImageBitmap::create(canvas, IntRect(sx, sy, sw, sh))); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, ImageData* data, ExceptionState& es) +{ + return createImageBitmap(eventTarget, data, 0, 0, data->width(), data->height(), es); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, ImageData* data, int sx, int sy, int sw, int sh, ExceptionState& es) +{ + if (!data) { + es.throwTypeError(); + return ScriptObject(); + } + if (!sw || !sh) { + es.throwDOMException(IndexSizeError); + return ScriptObject(); + } + // FIXME: make ImageBitmap creation asynchronous crbug.com/258082 + return resolveImageBitmap(ImageBitmap::create(data, IntRect(sx, sy, sw, sh))); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, ImageBitmap* bitmap, ExceptionState& es) +{ + return createImageBitmap(eventTarget, bitmap, 0, 0, bitmap->width(), bitmap->height(), es); +} + +ScriptObject createImageBitmap(EventTarget* eventTarget, ImageBitmap* bitmap, int sx, int sy, int sw, int sh, ExceptionState& es) +{ + if (!bitmap) { + es.throwTypeError(); + return ScriptObject(); + } + if (!sw || !sh) { + es.throwDOMException(IndexSizeError); + return ScriptObject(); + } + // FIXME: make ImageBitmap creation asynchronous crbug.com/258082 + return resolveImageBitmap(ImageBitmap::create(bitmap, IntRect(sx, sy, sw, sh))); +} + +} // namespace ImageBitmapFactories +} // namespace WebCore |