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
30 using namespace std;
31
32 namespace WebCore {
33
RenderProgress(HTMLElement * element)34 RenderProgress::RenderProgress(HTMLElement* element)
35 : RenderBlockFlow(element)
36 , m_position(HTMLProgressElement::InvalidPosition)
37 , m_animationStartTime(0)
38 , m_animationRepeatInterval(0)
39 , m_animationDuration(0)
40 , m_animating(false)
41 , m_animationTimer(this, &RenderProgress::animationTimerFired)
42 {
43 }
44
~RenderProgress()45 RenderProgress::~RenderProgress()
46 {
47 }
48
updateFromElement()49 void RenderProgress::updateFromElement()
50 {
51 HTMLProgressElement* element = progressElement();
52 if (m_position == element->position())
53 return;
54 m_position = element->position();
55
56 updateAnimationState();
57 paintInvalidationForWholeRenderer();
58 RenderBlockFlow::updateFromElement();
59 }
60
animationProgress() const61 double RenderProgress::animationProgress() const
62 {
63 return m_animating ? (fmod((currentTime() - m_animationStartTime), m_animationDuration) / m_animationDuration) : 0;
64 }
65
isDeterminate() const66 bool RenderProgress::isDeterminate() const
67 {
68 return (HTMLProgressElement::IndeterminatePosition != position()
69 && HTMLProgressElement::InvalidPosition != position());
70 }
71
animationTimerFired(Timer<RenderProgress> *)72 void RenderProgress::animationTimerFired(Timer<RenderProgress>*)
73 {
74 paintInvalidationForWholeRenderer();
75 if (!m_animationTimer.isActive() && m_animating)
76 m_animationTimer.startOneShot(m_animationRepeatInterval, FROM_HERE);
77 }
78
updateAnimationState()79 void RenderProgress::updateAnimationState()
80 {
81 m_animationDuration = RenderTheme::theme().animationDurationForProgressBar(this);
82 m_animationRepeatInterval = RenderTheme::theme().animationRepeatIntervalForProgressBar(this);
83
84 bool animating = style()->hasAppearance() && m_animationDuration > 0;
85 if (animating == m_animating)
86 return;
87
88 m_animating = animating;
89 if (m_animating) {
90 m_animationStartTime = currentTime();
91 m_animationTimer.startOneShot(m_animationRepeatInterval, FROM_HERE);
92 } else
93 m_animationTimer.stop();
94 }
95
progressElement() const96 HTMLProgressElement* RenderProgress::progressElement() const
97 {
98 if (!node())
99 return 0;
100
101 if (isHTMLProgressElement(*node()))
102 return toHTMLProgressElement(node());
103
104 ASSERT(node()->shadowHost());
105 return toHTMLProgressElement(node()->shadowHost());
106 }
107
108 } // namespace WebCore
109