| /* |
| * 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 |