1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * Copyright (C) 2003, 2007, 2010 Apple Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 * 21 */ 22 23#include "config.h" 24#include "HTMLMarqueeElement.h" 25 26#include "Attribute.h" 27#include "CSSPropertyNames.h" 28#include "CSSValueKeywords.h" 29#include "ExceptionCode.h" 30#include "HTMLNames.h" 31#include "RenderLayer.h" 32#include "RenderMarquee.h" 33 34namespace WebCore { 35 36using namespace HTMLNames; 37 38inline HTMLMarqueeElement::HTMLMarqueeElement(const QualifiedName& tagName, Document* document) 39 : HTMLElement(tagName, document) 40 , ActiveDOMObject(document) 41{ 42 ASSERT(hasTagName(marqueeTag)); 43} 44 45PassRefPtr<HTMLMarqueeElement> HTMLMarqueeElement::create(const QualifiedName& tagName, Document* document) 46{ 47 RefPtr<HTMLMarqueeElement> marqueeElement(adoptRef(new HTMLMarqueeElement(tagName, document))); 48 marqueeElement->suspendIfNeeded(); 49 return marqueeElement.release(); 50} 51 52int HTMLMarqueeElement::minimumDelay() const 53{ 54 if (fastGetAttribute(truespeedAttr).isEmpty()) { 55 // WinIE uses 60ms as the minimum delay by default. 56 return 60; 57 } 58 return 0; 59} 60 61bool HTMLMarqueeElement::isPresentationAttribute(const QualifiedName& name) const 62{ 63 if (name == widthAttr || name == heightAttr || name == bgcolorAttr || name == vspaceAttr || name == hspaceAttr || name == scrollamountAttr || name == scrolldelayAttr || name == loopAttr || name == behaviorAttr || name == directionAttr) 64 return true; 65 return HTMLElement::isPresentationAttribute(name); 66} 67 68void HTMLMarqueeElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style) 69{ 70 if (name == widthAttr) { 71 if (!value.isEmpty()) 72 addHTMLLengthToStyle(style, CSSPropertyWidth, value); 73 } else if (name == heightAttr) { 74 if (!value.isEmpty()) 75 addHTMLLengthToStyle(style, CSSPropertyHeight, value); 76 } else if (name == bgcolorAttr) { 77 if (!value.isEmpty()) 78 addHTMLColorToStyle(style, CSSPropertyBackgroundColor, value); 79 } else if (name == vspaceAttr) { 80 if (!value.isEmpty()) { 81 addHTMLLengthToStyle(style, CSSPropertyMarginTop, value); 82 addHTMLLengthToStyle(style, CSSPropertyMarginBottom, value); 83 } 84 } else if (name == hspaceAttr) { 85 if (!value.isEmpty()) { 86 addHTMLLengthToStyle(style, CSSPropertyMarginLeft, value); 87 addHTMLLengthToStyle(style, CSSPropertyMarginRight, value); 88 } 89 } else if (name == scrollamountAttr) { 90 if (!value.isEmpty()) 91 addHTMLLengthToStyle(style, CSSPropertyWebkitMarqueeIncrement, value); 92 } else if (name == scrolldelayAttr) { 93 if (!value.isEmpty()) 94 addHTMLLengthToStyle(style, CSSPropertyWebkitMarqueeSpeed, value); 95 } else if (name == loopAttr) { 96 if (!value.isEmpty()) { 97 if (value == "-1" || equalIgnoringCase(value, "infinite")) 98 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitMarqueeRepetition, CSSValueInfinite); 99 else 100 addHTMLLengthToStyle(style, CSSPropertyWebkitMarqueeRepetition, value); 101 } 102 } else if (name == behaviorAttr) { 103 if (!value.isEmpty()) 104 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitMarqueeStyle, value); 105 } else if (name == directionAttr) { 106 if (!value.isEmpty()) 107 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitMarqueeDirection, value); 108 } else 109 HTMLElement::collectStyleForPresentationAttribute(name, value, style); 110} 111 112void HTMLMarqueeElement::start() 113{ 114 if (RenderMarquee* marqueeRenderer = renderMarquee()) 115 marqueeRenderer->start(); 116} 117 118void HTMLMarqueeElement::stop() 119{ 120 if (RenderMarquee* marqueeRenderer = renderMarquee()) 121 marqueeRenderer->stop(); 122} 123 124int HTMLMarqueeElement::scrollAmount() const 125{ 126 bool ok; 127 int scrollAmount = fastGetAttribute(scrollamountAttr).toInt(&ok); 128 return ok && scrollAmount >= 0 ? scrollAmount : RenderStyle::initialMarqueeIncrement().intValue(); 129} 130 131void HTMLMarqueeElement::setScrollAmount(int scrollAmount, ExceptionCode& ec) 132{ 133 if (scrollAmount < 0) 134 ec = INDEX_SIZE_ERR; 135 else 136 setIntegralAttribute(scrollamountAttr, scrollAmount); 137} 138 139int HTMLMarqueeElement::scrollDelay() const 140{ 141 bool ok; 142 int scrollDelay = fastGetAttribute(scrolldelayAttr).toInt(&ok); 143 return ok && scrollDelay >= 0 ? scrollDelay : RenderStyle::initialMarqueeSpeed(); 144} 145 146void HTMLMarqueeElement::setScrollDelay(int scrollDelay, ExceptionCode& ec) 147{ 148 if (scrollDelay < 0) 149 ec = INDEX_SIZE_ERR; 150 else 151 setIntegralAttribute(scrolldelayAttr, scrollDelay); 152} 153 154int HTMLMarqueeElement::loop() const 155{ 156 bool ok; 157 int loopValue = fastGetAttribute(loopAttr).toInt(&ok); 158 return ok && loopValue > 0 ? loopValue : -1; 159} 160 161void HTMLMarqueeElement::setLoop(int loop, ExceptionCode& ec) 162{ 163 if (loop <= 0 && loop != -1) 164 ec = INDEX_SIZE_ERR; 165 else 166 setIntegralAttribute(loopAttr, loop); 167} 168 169bool HTMLMarqueeElement::canSuspend() const 170{ 171 return true; 172} 173 174void HTMLMarqueeElement::suspend(ReasonForSuspension) 175{ 176 if (RenderMarquee* marqueeRenderer = renderMarquee()) 177 marqueeRenderer->suspend(); 178} 179 180void HTMLMarqueeElement::resume() 181{ 182 if (RenderMarquee* marqueeRenderer = renderMarquee()) 183 marqueeRenderer->updateMarqueePosition(); 184} 185 186RenderMarquee* HTMLMarqueeElement::renderMarquee() const 187{ 188 if (renderer() && renderer()->hasLayer()) 189 return renderBoxModelObject()->layer()->marquee(); 190 return 0; 191} 192 193} // namespace WebCore 194