18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 2231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * Copyright (C) 2007 Apple Inc. All rights reserved. 35af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved. 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "config.h" 28231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "JSHTMLCanvasElement.h" 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 30d0825bca7fe65beaee391d30da42e937db621564Steve Block#include "CanvasContextAttributes.h" 31231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "HTMLCanvasElement.h" 32231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "JSCanvasRenderingContext2D.h" 332fc2651226baac27029e38c9d6ef883fa32084dbSteve Block#if ENABLE(WEBGL) 34643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#include "JSWebGLRenderingContext.h" 35d0825bca7fe65beaee391d30da42e937db621564Steve Block#include "WebGLContextAttributes.h" 36231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#endif 37231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include <wtf/GetPtr.h> 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockusing namespace JSC; 40231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 41231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blocknamespace WebCore { 42231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 43231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockvoid JSHTMLCanvasElement::markChildren(MarkStack& markStack) 44231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 45231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block Base::markChildren(markStack); 46231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 47231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block HTMLCanvasElement* canvas = static_cast<HTMLCanvasElement*>(impl()); 48231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block JSGlobalData& globalData = *Heap::heap(this)->globalData(); 49231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 50231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block markDOMObjectWrapper(markStack, globalData, canvas->renderingContext()); 518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 52231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 535af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeJSValue JSHTMLCanvasElement::getContext(ExecState* exec) 54d0825bca7fe65beaee391d30da42e937db621564Steve Block{ 55d0825bca7fe65beaee391d30da42e937db621564Steve Block HTMLCanvasElement* canvas = static_cast<HTMLCanvasElement*>(impl()); 565af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke const UString& contextId = exec->argument(0).toString(exec); 57d0825bca7fe65beaee391d30da42e937db621564Steve Block RefPtr<CanvasContextAttributes> attrs; 582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block#if ENABLE(WEBGL) 59d0825bca7fe65beaee391d30da42e937db621564Steve Block if (contextId == "experimental-webgl" || contextId == "webkit-3d") { 60d0825bca7fe65beaee391d30da42e937db621564Steve Block attrs = WebGLContextAttributes::create(); 61d0825bca7fe65beaee391d30da42e937db621564Steve Block WebGLContextAttributes* webGLAttrs = static_cast<WebGLContextAttributes*>(attrs.get()); 625af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (exec->argumentCount() > 1 && exec->argument(1).isObject()) { 635af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke JSObject* jsAttrs = exec->argument(1).getObject(); 64d0825bca7fe65beaee391d30da42e937db621564Steve Block Identifier alpha(exec, "alpha"); 65d0825bca7fe65beaee391d30da42e937db621564Steve Block if (jsAttrs->hasProperty(exec, alpha)) 66d0825bca7fe65beaee391d30da42e937db621564Steve Block webGLAttrs->setAlpha(jsAttrs->get(exec, alpha).toBoolean(exec)); 67d0825bca7fe65beaee391d30da42e937db621564Steve Block Identifier depth(exec, "depth"); 68d0825bca7fe65beaee391d30da42e937db621564Steve Block if (jsAttrs->hasProperty(exec, depth)) 69d0825bca7fe65beaee391d30da42e937db621564Steve Block webGLAttrs->setDepth(jsAttrs->get(exec, depth).toBoolean(exec)); 70d0825bca7fe65beaee391d30da42e937db621564Steve Block Identifier stencil(exec, "stencil"); 71d0825bca7fe65beaee391d30da42e937db621564Steve Block if (jsAttrs->hasProperty(exec, stencil)) 72d0825bca7fe65beaee391d30da42e937db621564Steve Block webGLAttrs->setStencil(jsAttrs->get(exec, stencil).toBoolean(exec)); 73d0825bca7fe65beaee391d30da42e937db621564Steve Block Identifier antialias(exec, "antialias"); 74d0825bca7fe65beaee391d30da42e937db621564Steve Block if (jsAttrs->hasProperty(exec, antialias)) 75d0825bca7fe65beaee391d30da42e937db621564Steve Block webGLAttrs->setAntialias(jsAttrs->get(exec, antialias).toBoolean(exec)); 76d0825bca7fe65beaee391d30da42e937db621564Steve Block Identifier premultipliedAlpha(exec, "premultipliedAlpha"); 77d0825bca7fe65beaee391d30da42e937db621564Steve Block if (jsAttrs->hasProperty(exec, premultipliedAlpha)) 78d0825bca7fe65beaee391d30da42e937db621564Steve Block webGLAttrs->setPremultipliedAlpha(jsAttrs->get(exec, premultipliedAlpha).toBoolean(exec)); 792bde8e466a4451c7319e3a072d118917957d6554Steve Block Identifier preserveDrawingBuffer(exec, "preserveDrawingBuffer"); 802bde8e466a4451c7319e3a072d118917957d6554Steve Block if (jsAttrs->hasProperty(exec, preserveDrawingBuffer)) 812bde8e466a4451c7319e3a072d118917957d6554Steve Block webGLAttrs->setPreserveDrawingBuffer(jsAttrs->get(exec, preserveDrawingBuffer).toBoolean(exec)); 82d0825bca7fe65beaee391d30da42e937db621564Steve Block } 83d0825bca7fe65beaee391d30da42e937db621564Steve Block } 84d0825bca7fe65beaee391d30da42e937db621564Steve Block#endif 856c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen CanvasRenderingContext* context = canvas->getContext(ustringToString(contextId), attrs.get()); 866c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (!context) 876c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen return jsNull(); 886c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen return toJS(exec, globalObject(), WTF::getPtr(context)); 89d0825bca7fe65beaee391d30da42e937db621564Steve Block} 90d0825bca7fe65beaee391d30da42e937db621564Steve Block 915af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeJSValue JSHTMLCanvasElement::toDataURL(ExecState* exec) 925af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 935af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke const String& type = valueToStringWithUndefinedOrNullCheck(exec, exec->argument(0)); 94545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch HTMLCanvasElement* canvas = static_cast<HTMLCanvasElement*>(impl()); 95545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch ExceptionCode ec = 0; 96545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 97545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch JSC::JSValue result; 98545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch double quality; 99545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch double* qualityPtr = 0; 1005af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (exec->argumentCount() > 1) { 1015af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke JSValue v = exec->argument(1); 102545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (v.isNumber()) { 1035af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke quality = v.toNumber(exec); 104545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch qualityPtr = &quality; 105545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 1065af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 107545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 108545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch result = jsString(exec, canvas->toDataURL(type, qualityPtr, ec)); 1095af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke setDOMException(exec, ec); 1105af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return result; 1115af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 1125af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 113231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} // namespace WebCore 114