1/* 2 * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21#include "config.h" 22#include "core/svg/SVGDocument.h" 23 24#include "SVGNames.h" 25#include "bindings/v8/ExceptionStatePlaceholder.h" 26#include "core/events/ThreadLocalEventNames.h" 27#include "core/frame/FrameView.h" 28#include "core/rendering/RenderView.h" 29#include "core/svg/SVGElement.h" 30#include "core/svg/SVGSVGElement.h" 31#include "core/svg/SVGViewSpec.h" 32#include "core/svg/SVGZoomAndPan.h" 33#include "core/svg/SVGZoomEvent.h" 34 35namespace WebCore { 36 37SVGDocument::SVGDocument(const DocumentInit& initializer) 38 : Document(initializer, SVGDocumentClass) 39{ 40 ScriptWrappable::init(this); 41} 42 43SVGSVGElement* SVGDocument::rootElement() const 44{ 45 Element* elem = documentElement(); 46 if (elem && elem->hasTagName(SVGNames::svgTag)) 47 return toSVGSVGElement(elem); 48 49 return 0; 50} 51 52void SVGDocument::dispatchZoomEvent(float prevScale, float newScale) 53{ 54 RefPtr<SVGZoomEvent> event = SVGZoomEvent::create(); 55 event->initEvent(EventTypeNames::zoom, true, false); 56 event->setPreviousScale(prevScale); 57 event->setNewScale(newScale); 58 rootElement()->dispatchEvent(event.release(), IGNORE_EXCEPTION); 59} 60 61void SVGDocument::dispatchScrollEvent() 62{ 63 RefPtr<Event> event = Event::create(); 64 event->initEvent(EventTypeNames::scroll, true, false); 65 rootElement()->dispatchEvent(event.release(), IGNORE_EXCEPTION); 66} 67 68bool SVGDocument::zoomAndPanEnabled() const 69{ 70 if (SVGSVGElement* svg = rootElement()) { 71 if (svg->useCurrentView()) { 72 if (svg->currentView()) 73 return svg->currentView()->zoomAndPan() == SVGZoomAndPanMagnify; 74 } else { 75 return svg->zoomAndPan() == SVGZoomAndPanMagnify; 76 } 77 } 78 79 return false; 80} 81 82void SVGDocument::startPan(const FloatPoint& start) 83{ 84 if (SVGSVGElement* svg = rootElement()) 85 m_translate = FloatPoint(start.x() - svg->currentTranslate().x(), start.y() - svg->currentTranslate().y()); 86} 87 88void SVGDocument::updatePan(const FloatPoint& pos) const 89{ 90 if (SVGSVGElement* svg = rootElement()) { 91 svg->setCurrentTranslate(FloatPoint(pos.x() - m_translate.x(), pos.y() - m_translate.y())); 92 if (renderer()) 93 renderer()->repaint(); 94 } 95} 96 97bool SVGDocument::childShouldCreateRenderer(const Node& child) const 98{ 99 if (child.hasTagName(SVGNames::svgTag)) 100 return toSVGSVGElement(&child)->isValid(); 101 return true; 102} 103 104PassRefPtr<Document> SVGDocument::cloneDocumentWithoutChildren() 105{ 106 return create(DocumentInit(url())); 107} 108 109} 110