1/* 2 * Copyright (C) 2011 Adobe Systems Incorporated. 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 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above 9 * copyright notice, this list of conditions and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following 13 * disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include "config.h" 31 32#if ENABLE(CSS_SHADERS) 33#include "WebKitCSSShaderValue.h" 34 35#include "CSSParser.h" 36#include "CachedResourceLoader.h" 37#include "CachedResourceRequest.h" 38#include "CachedResourceRequestInitiators.h" 39#include "Document.h" 40#include "KURL.h" 41#include "StyleCachedShader.h" 42#include "StylePendingShader.h" 43#include <wtf/text/StringBuilder.h> 44 45namespace WebCore { 46 47WebKitCSSShaderValue::WebKitCSSShaderValue(const String& url) 48 : CSSValue(WebKitCSSShaderClass) 49 , m_url(url) 50 , m_accessedShader(false) 51{ 52} 53 54WebKitCSSShaderValue::~WebKitCSSShaderValue() 55{ 56} 57 58KURL WebKitCSSShaderValue::completeURL(CachedResourceLoader* loader) const 59{ 60 return loader->document()->completeURL(m_url); 61} 62 63StyleCachedShader* WebKitCSSShaderValue::cachedShader(CachedResourceLoader* loader) 64{ 65 ASSERT(loader); 66 67 if (!m_accessedShader) { 68 m_accessedShader = true; 69 70 CachedResourceRequest request(ResourceRequest(completeURL(loader))); 71 request.setInitiator(cachedResourceRequestInitiators().css); 72 if (CachedResourceHandle<CachedShader> cachedShader = loader->requestShader(request)) 73 m_shader = StyleCachedShader::create(cachedShader.get()); 74 } 75 76 return (m_shader && m_shader->isCachedShader()) ? static_cast<StyleCachedShader*>(m_shader.get()) : 0; 77} 78 79StyleShader* WebKitCSSShaderValue::cachedOrPendingShader() 80{ 81 if (!m_shader) 82 m_shader = StylePendingShader::create(this); 83 84 return m_shader.get(); 85} 86 87String WebKitCSSShaderValue::customCssText() const 88{ 89 StringBuilder result; 90 result.appendLiteral("url("); 91 result.append(quoteCSSURLIfNeeded(m_url)); 92 result.append(')'); 93 if (!m_format.isEmpty()) { 94 result.appendLiteral(" format('"); 95 result.append(m_format); 96 result.appendLiteral("')"); 97 } 98 return result.toString(); 99} 100 101bool WebKitCSSShaderValue::equals(const WebKitCSSShaderValue& other) const 102{ 103 return m_url == other.m_url; 104} 105 106} // namespace WebCore 107 108#endif // ENABLE(CSS_SHADERS) 109