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| 1 // Copyright 2011, Google Inc. | |
| 2 // All rights reserved. | |
| 3 // | |
| 4 // Redistribution and use in source and binary forms, with or without | |
| 5 // modification, are permitted provided that the following conditions are | |
| 6 // met: | |
| 7 // | |
| 8 // * Redistributions of source code must retain the above copyright | |
| 9 // notice, this list of conditions and the following disclaimer. | |
| 10 // * Redistributions in binary form must reproduce the above | |
| 11 // copyright notice, this list of conditions and the following disclaimer | |
| 12 // in the documentation and/or other materials provided with the | |
| 13 // distribution. | |
| 14 // * Neither the name of Google Inc. nor the names of its | |
| 15 // contributors may be used to endorse or promote products derived from | |
| 16 // this software without specific prior written permission. | |
| 17 // | |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 | |
| 30 #include "config.h" | |
| 31 #include "DartHTMLCanvasElement.h" | |
| 32 | |
| 33 #include "CanvasRenderingContext.h" | |
| 34 #include "CanvasRenderingContext2D.h" | |
| 35 #include "DartDOMWrapper.h" | |
| 36 #include "DartCanvasRenderingContext2D.h" | |
| 37 #if ENABLE(WEBGL) | |
| 38 #include "DartWebGLRenderingContext.h" | |
| 39 #endif | |
| 40 #include "HTMLCanvasElement.h" | |
| 41 #if ENABLE(WEBGL) | |
| 42 #include "DartUtilities.h" | |
| 43 #include "WebGLRenderingContext.h" | |
| 44 #endif | |
| 45 | |
| 46 | |
| 47 namespace WebCore { | |
| 48 | |
| 49 namespace DartHTMLCanvasElementInternal { | |
| 50 | |
| 51 void toDataURLCallback(Dart_NativeArguments args) | |
| 52 { | |
| 53 DartApiScope dartApiScope; | |
| 54 Dart_Handle exception; | |
| 55 { | |
| 56 HTMLCanvasElement* receiver = DartDOMWrapper::receiver<HTMLCanvasElement
>(args); | |
| 57 | |
| 58 const ParameterAdapter< String > type(Dart_GetNativeArgument(args, 1)); | |
| 59 if (!type.conversionSuccessful()) { | |
| 60 exception = type.exception(); | |
| 61 goto fail; | |
| 62 } | |
| 63 | |
| 64 ExceptionCode ec = 0; | |
| 65 String result = receiver->toDataURL(type, 0, ec); | |
| 66 if (UNLIKELY(ec)) { | |
| 67 exception = DartDOMWrapper::exceptionCodeToDartException(ec); | |
| 68 goto fail; | |
| 69 } | |
| 70 | |
| 71 DartDOMWrapper::returnValue(args, result, ConvertDefaultToNull); | |
| 72 return; | |
| 73 } | |
| 74 | |
| 75 fail: | |
| 76 Dart_ThrowException(exception); | |
| 77 ASSERT_NOT_REACHED(); | |
| 78 } | |
| 79 | |
| 80 void getContextCallback(Dart_NativeArguments args) | |
| 81 { | |
| 82 DartApiScope dartApiScope; | |
| 83 Dart_Handle exception; | |
| 84 { | |
| 85 HTMLCanvasElement* receiver = DartDOMWrapper::receiver<HTMLCanvasElement
>(args); | |
| 86 | |
| 87 const ParameterAdapter< String > contextId(Dart_GetNativeArgument(args,
1)); | |
| 88 if (!contextId.conversionSuccessful()) { | |
| 89 exception = contextId.exception(); | |
| 90 goto fail; | |
| 91 } | |
| 92 | |
| 93 // FIXME: implement support for CanvasContextAttributes. | |
| 94 CanvasRenderingContext* result = receiver->getContext(contextId, 0); | |
| 95 if (!result) | |
| 96 return; | |
| 97 if (result->is2d()) | |
| 98 DartDOMWrapper::returnValue(args, static_cast<CanvasRenderingContext
2D*>(result)); | |
| 99 #if ENABLE(WEBGL) | |
| 100 else if (result->is3d()) | |
| 101 DartDOMWrapper::returnValue(args, static_cast<WebGLRenderingContext*
>(result)); | |
| 102 #endif | |
| 103 else | |
| 104 ASSERT_NOT_REACHED(); | |
| 105 return; | |
| 106 } | |
| 107 | |
| 108 fail: | |
| 109 Dart_ThrowException(exception); | |
| 110 ASSERT_NOT_REACHED(); | |
| 111 } | |
| 112 | |
| 113 } // namespace DartHTMLCanvasElementInternal | |
| 114 | |
| 115 } // namespace WebCore | |
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