| Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2013 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 | #include "core/css/WebKitCSSFilterRule.h" |
| 32 | |
| 33 | #include "core/css/PropertySetCSSStyleDeclaration.h" |
| 34 | #include "core/css/StylePropertySet.h" |
| 35 | #include "core/css/StyleRule.h" |
| 36 | #include "core/dom/WebCoreMemoryInstrumentation.h" |
| 37 | #include <wtf/text/StringBuilder.h> |
| 38 | |
| 39 | namespace WebCore { |
| 40 | |
| 41 | WebKitCSSFilterRule::WebKitCSSFilterRule(StyleRuleFilter* filterRule, CSSStyleSheet* parent) |
| 42 | : CSSRule(parent) |
| 43 | , m_filterRule(filterRule) |
| 44 | { |
| 45 | } |
| 46 | |
| 47 | WebKitCSSFilterRule::~WebKitCSSFilterRule() |
| 48 | { |
| 49 | if (m_propertiesCSSOMWrapper) |
| 50 | m_propertiesCSSOMWrapper->clearParentRule(); |
| 51 | } |
| 52 | |
| 53 | CSSStyleDeclaration* WebKitCSSFilterRule::style() const |
| 54 | { |
| 55 | if (!m_propertiesCSSOMWrapper) |
| 56 | m_propertiesCSSOMWrapper = StyleRuleCSSStyleDeclaration::create(m_filterRule->mutableProperties(), const_cast<WebKitCSSFilterRule*>(this)); |
| 57 | return m_propertiesCSSOMWrapper.get(); |
| 58 | } |
| 59 | |
| 60 | String WebKitCSSFilterRule::cssText() const |
| 61 | { |
| 62 | StringBuilder result; |
| 63 | result.appendLiteral("@-webkit-filter "); |
| 64 | |
| 65 | String filterName = m_filterRule->filterName(); |
| 66 | result.append(filterName); |
| 67 | result.appendLiteral(" { "); |
| 68 | |
| 69 | String descs = m_filterRule->properties()->asText(); |
| 70 | result.append(descs); |
| 71 | if (!descs.isEmpty()) |
| 72 | result.append(' '); |
| 73 | result.append('}'); |
| 74 | |
| 75 | return result.toString(); |
| 76 | } |
| 77 | |
| 78 | void WebKitCSSFilterRule::reattach(StyleRuleBase* rule) |
| 79 | { |
| 80 | ASSERT(rule); |
| 81 | ASSERT_WITH_SECURITY_IMPLICATION(rule->isFilterRule()); |
| 82 | m_filterRule = static_cast<StyleRuleFilter*>(rule); |
| 83 | if (m_propertiesCSSOMWrapper) |
| 84 | m_propertiesCSSOMWrapper->reattach(m_filterRule->mutableProperties()); |
| 85 | } |
| 86 | |
| 87 | void WebKitCSSFilterRule::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const |
| 88 | { |
| 89 | MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS); |
| 90 | CSSRule::reportMemoryUsage(memoryObjectInfo); |
| 91 | info.addMember(m_filterRule); |
| 92 | info.addMember(m_propertiesCSSOMWrapper); |
| 93 | } |
| 94 | |
| 95 | } // namespace WebCore |
| 96 | |