1/* 2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21#include "config.h" 22 23#include "core/rendering/RenderProgress.h" 24 25#include "core/html/HTMLProgressElement.h" 26#include "core/rendering/RenderTheme.h" 27#include "wtf/CurrentTime.h" 28#include "wtf/RefPtr.h" 29 30namespace blink { 31 32RenderProgress::RenderProgress(HTMLElement* element) 33 : RenderBlockFlow(element) 34 , m_position(HTMLProgressElement::InvalidPosition) 35 , m_animationStartTime(0) 36 , m_animationRepeatInterval(0) 37 , m_animationDuration(0) 38 , m_animating(false) 39 , m_animationTimer(this, &RenderProgress::animationTimerFired) 40{ 41} 42 43RenderProgress::~RenderProgress() 44{ 45} 46 47void RenderProgress::destroy() 48{ 49 if (m_animating) { 50 m_animationTimer.stop(); 51 m_animating = false; 52 } 53 RenderBlockFlow::destroy(); 54} 55 56void RenderProgress::updateFromElement() 57{ 58 HTMLProgressElement* element = progressElement(); 59 if (m_position == element->position()) 60 return; 61 m_position = element->position(); 62 63 updateAnimationState(); 64 setShouldDoFullPaintInvalidation(true); 65 RenderBlockFlow::updateFromElement(); 66} 67 68double RenderProgress::animationProgress() const 69{ 70 return m_animating ? (fmod((currentTime() - m_animationStartTime), m_animationDuration) / m_animationDuration) : 0; 71} 72 73bool RenderProgress::isDeterminate() const 74{ 75 return (HTMLProgressElement::IndeterminatePosition != position() 76 && HTMLProgressElement::InvalidPosition != position()); 77} 78 79void RenderProgress::animationTimerFired(Timer<RenderProgress>*) 80{ 81 setShouldDoFullPaintInvalidation(true); 82 if (!m_animationTimer.isActive() && m_animating) 83 m_animationTimer.startOneShot(m_animationRepeatInterval, FROM_HERE); 84} 85 86void RenderProgress::updateAnimationState() 87{ 88 m_animationDuration = RenderTheme::theme().animationDurationForProgressBar(this); 89 m_animationRepeatInterval = RenderTheme::theme().animationRepeatIntervalForProgressBar(this); 90 91 bool animating = style()->hasAppearance() && m_animationDuration > 0; 92 if (animating == m_animating) 93 return; 94 95 m_animating = animating; 96 if (m_animating) { 97 m_animationStartTime = currentTime(); 98 m_animationTimer.startOneShot(m_animationRepeatInterval, FROM_HERE); 99 } else 100 m_animationTimer.stop(); 101} 102 103HTMLProgressElement* RenderProgress::progressElement() const 104{ 105 if (!node()) 106 return 0; 107 108 if (isHTMLProgressElement(*node())) 109 return toHTMLProgressElement(node()); 110 111 ASSERT(node()->shadowHost()); 112 return toHTMLProgressElement(node()->shadowHost()); 113} 114 115} // namespace blink 116