1 /* 2 * Copyright (C) 2010 Google Inc. 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 31 #include "config.h" 32 #include "V8ImageData.h" 33 34 #include "V8CanvasPixelArray.h" 35 36 namespace WebCore { 37 38 v8::Handle<v8::Value> toV8(ImageData* impl) 39 { 40 if (!impl) 41 return v8::Null(); 42 v8::Handle<v8::Object> wrapper = V8ImageData::wrap(impl); 43 if (!wrapper.IsEmpty()) { 44 // Create a V8 CanvasPixelArray object. 45 v8::Handle<v8::Value> pixelArray = toV8(impl->data()); 46 // Set the "data" property of the ImageData object to 47 // the created v8 object, eliminating the C++ callback 48 // when accessing the "data" property. 49 if (!pixelArray.IsEmpty()) { 50 wrapper->Set(v8::String::NewSymbol("data"), 51 pixelArray, 52 v8::ReadOnly); 53 } 54 } 55 56 return wrapper; 57 } 58 59 } // namespace WebCore 60
