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 #if ENABLE(PROGRESS_TAG)
24
25 #include "RenderProgress.h"
26
27 #include "HTMLNames.h"
28 #include "HTMLProgressElement.h"
29 #include "PaintInfo.h"
30 #include "RenderTheme.h"
31 #include "ShadowElement.h"
32 #include <wtf/CurrentTime.h>
33 #include <wtf/RefPtr.h>
34
35 using namespace std;
36
37 namespace WebCore {
38
RenderProgress(HTMLProgressElement * element)39 RenderProgress::RenderProgress(HTMLProgressElement* element)
40 : RenderBlock(element)
41 , m_position(HTMLProgressElement::InvalidPosition)
42 , m_animationStartTime(0)
43 , m_animationRepeatInterval(0)
44 , m_animationDuration(0)
45 , m_animating(false)
46 , m_animationTimer(this, &RenderProgress::animationTimerFired)
47 {
48 }
49
~RenderProgress()50 RenderProgress::~RenderProgress()
51 {
52 }
53
updateFromElement()54 void RenderProgress::updateFromElement()
55 {
56 HTMLProgressElement* element = progressElement();
57 if (m_position == element->position())
58 return;
59 m_position = element->position();
60
61 updateAnimationState();
62 RenderBlock::updateFromElement();
63 }
64
animationProgress() const65 double RenderProgress::animationProgress() const
66 {
67 return m_animating ? (fmod((currentTime() - m_animationStartTime), m_animationDuration) / m_animationDuration) : 0;
68 }
69
isDeterminate() const70 bool RenderProgress::isDeterminate() const
71 {
72 return (HTMLProgressElement::IndeterminatePosition != position()
73 && HTMLProgressElement::InvalidPosition != position());
74 }
75
animationTimerFired(Timer<RenderProgress> *)76 void RenderProgress::animationTimerFired(Timer<RenderProgress>*)
77 {
78 repaint();
79 if (!m_animationTimer.isActive() && m_animating)
80 m_animationTimer.startOneShot(m_animationRepeatInterval);
81 }
82
updateAnimationState()83 void RenderProgress::updateAnimationState()
84 {
85 m_animationDuration = theme()->animationDurationForProgressBar(this);
86 m_animationRepeatInterval = theme()->animationRepeatIntervalForProgressBar(this);
87
88 bool animating = style()->hasAppearance() && m_animationDuration > 0;
89 if (animating == m_animating)
90 return;
91
92 m_animating = animating;
93 if (m_animating) {
94 m_animationStartTime = currentTime();
95 m_animationTimer.startOneShot(m_animationRepeatInterval);
96 } else
97 m_animationTimer.stop();
98 }
99
progressElement() const100 HTMLProgressElement* RenderProgress::progressElement() const
101 {
102 return static_cast<HTMLProgressElement*>(node());
103 }
104
105 } // namespace WebCore
106
107 #endif
108