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| 1 /* | |
| 2 * Copyright (C) 2007-2009 Google Inc. All rights reserved. | |
| 3 * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are | |
| 7 * met: | |
| 8 * | |
| 9 * * Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * * Redistributions in binary form must reproduce the above | |
| 12 * copyright notice, this list of conditions and the following disclaimer | |
| 13 * in the documentation and/or other materials provided with the | |
| 14 * distribution. | |
| 15 * * Neither the name of Google Inc. nor the names of its | |
| 16 * contributors may be used to endorse or promote products derived from | |
| 17 * this software without specific prior written permission. | |
| 18 * | |
| 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 30 */ | |
| 31 | |
| 32 #include "config.h" | |
| 33 #include "bindings/core/v8/V8HTMLCanvasElement.h" | |
| 34 | |
| 35 #include "bindings/core/v8/V8CanvasRenderingContext2D.h" | |
| 36 #include "bindings/core/v8/V8Node.h" | |
| 37 #include "bindings/core/v8/V8WebGLRenderingContext.h" | |
| 38 #include "bindings/v8/ExceptionState.h" | |
| 39 #include "bindings/v8/V8Binding.h" | |
| 40 #include "core/html/HTMLCanvasElement.h" | |
| 41 #include "core/html/canvas/Canvas2DContextAttributes.h" | |
| 42 #include "core/html/canvas/CanvasRenderingContext.h" | |
| 43 #include "core/html/canvas/WebGLContextAttributes.h" | |
| 44 #include "core/inspector/InspectorCanvasInstrumentation.h" | |
| 45 #include "wtf/MathExtras.h" | |
| 46 #include "wtf/text/WTFString.h" | |
| 47 | |
| 48 namespace WebCore { | |
| 49 | |
| 50 void V8HTMLCanvasElement::getContextMethodCustom(const v8::FunctionCallbackInfo<
v8::Value>& info) | |
| 51 { | |
| 52 v8::Handle<v8::Object> holder = info.Holder(); | |
| 53 v8::Isolate* isolate = info.GetIsolate(); | |
| 54 HTMLCanvasElement* impl = V8HTMLCanvasElement::toNative(holder); | |
| 55 TOSTRING_VOID(V8StringResource<>, contextIdResource, info[0]); | |
| 56 String contextId = contextIdResource; | |
| 57 RefPtr<CanvasContextAttributes> attributes; | |
| 58 if (contextId == "webgl" || contextId == "experimental-webgl") { | |
| 59 RefPtr<WebGLContextAttributes> webGLAttributes = WebGLContextAttributes:
:create(); | |
| 60 if (info.Length() > 1 && info[1]->IsObject()) { | |
| 61 v8::Handle<v8::Object> jsAttributes = info[1]->ToObject(); | |
| 62 v8::Handle<v8::String> alpha = v8AtomicString(isolate, "alpha"); | |
| 63 if (jsAttributes->Has(alpha) && !isUndefinedOrNull(jsAttributes->Get
(alpha))) | |
| 64 webGLAttributes->setAlpha(jsAttributes->Get(alpha)->BooleanValue
()); | |
| 65 v8::Handle<v8::String> depth = v8AtomicString(isolate, "depth"); | |
| 66 if (jsAttributes->Has(depth) && !isUndefinedOrNull(jsAttributes->Get
(depth))) | |
| 67 webGLAttributes->setDepth(jsAttributes->Get(depth)->BooleanValue
()); | |
| 68 v8::Handle<v8::String> stencil = v8AtomicString(isolate, "stencil"); | |
| 69 if (jsAttributes->Has(stencil) && !isUndefinedOrNull(jsAttributes->G
et(stencil))) | |
| 70 webGLAttributes->setStencil(jsAttributes->Get(stencil)->BooleanV
alue()); | |
| 71 v8::Handle<v8::String> antialias = v8AtomicString(isolate, "antialia
s"); | |
| 72 if (jsAttributes->Has(antialias) && !isUndefinedOrNull(jsAttributes-
>Get(antialias))) | |
| 73 webGLAttributes->setAntialias(jsAttributes->Get(antialias)->Bool
eanValue()); | |
| 74 v8::Handle<v8::String> premultipliedAlpha = v8AtomicString(isolate,
"premultipliedAlpha"); | |
| 75 if (jsAttributes->Has(premultipliedAlpha) && !isUndefinedOrNull(jsAt
tributes->Get(premultipliedAlpha))) | |
| 76 webGLAttributes->setPremultipliedAlpha(jsAttributes->Get(premult
ipliedAlpha)->BooleanValue()); | |
| 77 v8::Handle<v8::String> preserveDrawingBuffer = v8AtomicString(isolat
e, "preserveDrawingBuffer"); | |
| 78 if (jsAttributes->Has(preserveDrawingBuffer) && !isUndefinedOrNull(j
sAttributes->Get(preserveDrawingBuffer))) | |
| 79 webGLAttributes->setPreserveDrawingBuffer(jsAttributes->Get(pres
erveDrawingBuffer)->BooleanValue()); | |
| 80 v8::Handle<v8::String> failIfMajorPerformanceCaveat = v8AtomicString
(isolate, "failIfMajorPerformanceCaveat"); | |
| 81 if (jsAttributes->Has(failIfMajorPerformanceCaveat) && !isUndefinedO
rNull(jsAttributes->Get(failIfMajorPerformanceCaveat))) | |
| 82 webGLAttributes->setFailIfMajorPerformanceCaveat(jsAttributes->G
et(failIfMajorPerformanceCaveat)->BooleanValue()); | |
| 83 } | |
| 84 attributes = webGLAttributes; | |
| 85 } else { | |
| 86 RefPtr<Canvas2DContextAttributes> canvas2DAttributes = Canvas2DContextAt
tributes::create(); | |
| 87 if (info.Length() > 1 && info[1]->IsObject()) { | |
| 88 v8::Handle<v8::Object> jsAttributes = info[1]->ToObject(); | |
| 89 v8::Handle<v8::String> alpha = v8AtomicString(isolate, "alpha"); | |
| 90 if (jsAttributes->Has(alpha) && !isUndefinedOrNull(jsAttributes->Get
(alpha))) | |
| 91 canvas2DAttributes->setAlpha(jsAttributes->Get(alpha)->BooleanVa
lue()); | |
| 92 } | |
| 93 attributes = canvas2DAttributes; | |
| 94 } | |
| 95 CanvasRenderingContext* result = impl->getContext(contextId, attributes.get(
)); | |
| 96 if (!result) { | |
| 97 v8SetReturnValueNull(info); | |
| 98 return; | |
| 99 } | |
| 100 if (result->is2d()) { | |
| 101 v8::Handle<v8::Value> v8Result = toV8(toCanvasRenderingContext2D(result)
, info.Holder(), info.GetIsolate()); | |
| 102 if (InspectorInstrumentation::canvasAgentEnabled(&impl->document())) { | |
| 103 ScriptState* scriptState = ScriptState::current(isolate); | |
| 104 ScriptValue context(scriptState, v8Result); | |
| 105 ScriptValue wrapped = InspectorInstrumentation::wrapCanvas2DRenderin
gContextForInstrumentation(&impl->document(), context); | |
| 106 if (!wrapped.isEmpty()) { | |
| 107 v8SetReturnValue(info, wrapped.v8Value()); | |
| 108 return; | |
| 109 } | |
| 110 } | |
| 111 v8SetReturnValue(info, v8Result); | |
| 112 return; | |
| 113 } | |
| 114 if (result->is3d()) { | |
| 115 v8::Handle<v8::Value> v8Result = toV8(toWebGLRenderingContext(result), i
nfo.Holder(), info.GetIsolate()); | |
| 116 if (InspectorInstrumentation::canvasAgentEnabled(&impl->document())) { | |
| 117 ScriptState* scriptState = ScriptState::current(isolate); | |
| 118 ScriptValue glContext(scriptState, v8Result); | |
| 119 ScriptValue wrapped = InspectorInstrumentation::wrapWebGLRenderingCo
ntextForInstrumentation(&impl->document(), glContext); | |
| 120 if (!wrapped.isEmpty()) { | |
| 121 v8SetReturnValue(info, wrapped.v8Value()); | |
| 122 return; | |
| 123 } | |
| 124 } | |
| 125 v8SetReturnValue(info, v8Result); | |
| 126 return; | |
| 127 } | |
| 128 ASSERT_NOT_REACHED(); | |
| 129 v8SetReturnValueNull(info); | |
| 130 } | |
| 131 | |
| 132 void V8HTMLCanvasElement::toDataURLMethodCustom(const v8::FunctionCallbackInfo<v
8::Value>& info) | |
| 133 { | |
| 134 v8::Handle<v8::Object> holder = info.Holder(); | |
| 135 HTMLCanvasElement* canvas = V8HTMLCanvasElement::toNative(holder); | |
| 136 ExceptionState exceptionState(ExceptionState::ExecutionContext, "toDataURL",
"HTMLCanvasElement", info.Holder(), info.GetIsolate()); | |
| 137 | |
| 138 TOSTRING_VOID(V8StringResource<>, type, info[0]); | |
| 139 double quality; | |
| 140 double* qualityPtr = 0; | |
| 141 if (info.Length() > 1 && info[1]->IsNumber()) { | |
| 142 quality = info[1]->NumberValue(); | |
| 143 qualityPtr = &quality; | |
| 144 } | |
| 145 | |
| 146 String result = canvas->toDataURL(type, qualityPtr, exceptionState); | |
| 147 exceptionState.throwIfNeeded(); | |
| 148 v8SetReturnValueStringOrUndefined(info, result, info.GetIsolate()); | |
| 149 } | |
| 150 | |
| 151 } // namespace WebCore | |
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Chromium Code Reviews
Issue 331373002:
Split bindings/v8/custom into core and modules. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk