1/*
2 * Copyright (C) 2010, 2011 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#include "RenderDetailsMarker.h"
23
24#include "Element.h"
25#include "GraphicsContext.h"
26#include "HTMLDetailsElement.h"
27#include "HTMLInputElement.h"
28#include "HTMLNames.h"
29#include "PaintInfo.h"
30#include <wtf/IsoMallocInlines.h>
31
32namespace WebCore {
33
34using namespace HTMLNames;
35
36WTF_MAKE_ISO_ALLOCATED_IMPL(RenderDetailsMarker);
37
38RenderDetailsMarker::RenderDetailsMarker(DetailsMarkerControl& element, RenderStyle&& style)
39 : RenderBlockFlow(element, WTFMove(style))
40{
41}
42
43static Path createPath(const FloatPoint* path)
44{
45 Path result;
46 result.moveTo(FloatPoint(path[0].x(), path[0].y()));
47 for (int i = 1; i < 4; ++i)
48 result.addLineTo(FloatPoint(path[i].x(), path[i].y()));
49 return result;
50}
51
52static Path createDownArrowPath()
53{
54 FloatPoint points[4] = { FloatPoint(0.0f, 0.07f), FloatPoint(0.5f, 0.93f), FloatPoint(1.0f, 0.07f), FloatPoint(0.0f, 0.07f) };
55 return createPath(points);
56}
57
58static Path createUpArrowPath()
59{
60 FloatPoint points[4] = { FloatPoint(0.0f, 0.93f), FloatPoint(0.5f, 0.07f), FloatPoint(1.0f, 0.93f), FloatPoint(0.0f, 0.93f) };
61 return createPath(points);
62}
63
64static Path createLeftArrowPath()
65{
66 FloatPoint points[4] = { FloatPoint(1.0f, 0.0f), FloatPoint(0.14f, 0.5f), FloatPoint(1.0f, 1.0f), FloatPoint(1.0f, 0.0f) };
67 return createPath(points);
68}
69
70static Path createRightArrowPath()
71{
72 FloatPoint points[4] = { FloatPoint(0.0f, 0.0f), FloatPoint(0.86f, 0.5f), FloatPoint(0.0f, 1.0f), FloatPoint(0.0f, 0.0f) };
73 return createPath(points);
74}
75
76RenderDetailsMarker::Orientation RenderDetailsMarker::orientation() const
77{
78 switch (style().writingMode()) {
79 case TopToBottomWritingMode:
80 if (style().isLeftToRightDirection())
81 return isOpen() ? Down : Right;
82 return isOpen() ? Down : Left;
83 case RightToLeftWritingMode:
84 if (style().isLeftToRightDirection())
85 return isOpen() ? Left : Down;
86 return isOpen() ? Left : Up;
87 case LeftToRightWritingMode:
88 if (style().isLeftToRightDirection())
89 return isOpen() ? Right : Down;
90 return isOpen() ? Right : Up;
91 case BottomToTopWritingMode:
92 if (style().isLeftToRightDirection())
93 return isOpen() ? Up : Right;
94 return isOpen() ? Up : Left;
95 }
96 return Right;
97}
98
99Path RenderDetailsMarker::getCanonicalPath() const
100{
101 switch (orientation()) {
102 case Left: return createLeftArrowPath();
103 case Right: return createRightArrowPath();
104 case Up: return createUpArrowPath();
105 case Down: return createDownArrowPath();
106 }
107
108 return Path();
109}
110
111Path RenderDetailsMarker::getPath(const LayoutPoint& origin) const
112{
113 Path result = getCanonicalPath();
114 result.transform(AffineTransform().scale(contentWidth(), contentHeight()));
115 result.translate(FloatSize(origin.x(), origin.y()));
116 return result;
117}
118
119void RenderDetailsMarker::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
120{
121 if (paintInfo.phase != PaintPhase::Foreground || style().visibility() != Visibility::Visible) {
122 RenderBlockFlow::paint(paintInfo, paintOffset);
123 return;
124 }
125
126 LayoutPoint boxOrigin(paintOffset + location());
127 LayoutRect overflowRect(visualOverflowRect());
128 overflowRect.moveBy(boxOrigin);
129
130 if (!paintInfo.rect.intersects(snappedIntRect(overflowRect)))
131 return;
132
133 const Color color(style().visitedDependentColorWithColorFilter(CSSPropertyColor));
134 paintInfo.context().setStrokeColor(color);
135 paintInfo.context().setStrokeStyle(SolidStroke);
136 paintInfo.context().setStrokeThickness(1.0f);
137 paintInfo.context().setFillColor(color);
138
139 boxOrigin.move(borderLeft() + paddingLeft(), borderTop() + paddingTop());
140 paintInfo.context().fillPath(getPath(boxOrigin));
141}
142
143bool RenderDetailsMarker::isOpen() const
144{
145 for (RenderObject* renderer = parent(); renderer; renderer = renderer->parent()) {
146 if (!renderer->node())
147 continue;
148 if (is<HTMLDetailsElement>(*renderer->node()))
149 return !downcast<HTMLDetailsElement>(*renderer->node()).attributeWithoutSynchronization(openAttr).isNull();
150 if (is<HTMLInputElement>(*renderer->node()))
151 return true;
152 }
153
154 return false;
155}
156
157}
158