1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/**
* Copyright (C) 2003, 2006 Apple Computer, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "EllipsisBox.h"
#include "Document.h"
#include "Font.h"
#include "GraphicsContext.h"
#include "HitTestResult.h"
#include "InlineTextBox.h"
#include "PaintInfo.h"
#include "RenderBlock.h"
#include "RootInlineBox.h"
#include "TextRun.h"
namespace WebCore {
void EllipsisBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
{
GraphicsContext* context = paintInfo.context;
RenderStyle* style = m_renderer->style(isFirstLineStyle());
Color textColor = style->visitedDependentColor(CSSPropertyWebkitTextFillColor);
if (textColor != context->fillColor())
context->setFillColor(textColor, style->colorSpace());
bool setShadow = false;
if (style->textShadow()) {
context->setShadow(LayoutSize(style->textShadow()->x(), style->textShadow()->y()),
style->textShadow()->radius(), style->textShadow()->color(), style->colorSpace());
setShadow = true;
}
const Font& font = style->font();
if (selectionState() != RenderObject::SelectionNone) {
paintSelection(context, paintOffset, style, font);
// Select the correct color for painting the text.
Color foreground = paintInfo.forceBlackText() ? Color::black : renderer()->selectionForegroundColor();
if (foreground.isValid() && foreground != textColor)
context->setFillColor(foreground, style->colorSpace());
}
// FIXME: Why is this always LTR? Fix by passing correct text run flags below.
context->drawText(font, RenderBlock::constructTextRun(renderer(), font, m_str, style, TextRun::AllowTrailingExpansion), LayoutPoint(x() + paintOffset.x(), y() + paintOffset.y() + style->fontMetrics().ascent()));
// Restore the regular fill color.
if (textColor != context->fillColor())
context->setFillColor(textColor, style->colorSpace());
if (setShadow)
context->clearShadow();
paintMarkupBox(paintInfo, paintOffset, lineTop, lineBottom, style);
}
InlineBox* EllipsisBox::markupBox() const
{
if (!m_shouldPaintMarkupBox || !m_renderer->isRenderBlock())
return 0;
RenderBlock* block = toRenderBlock(m_renderer);
RootInlineBox* lastLine = block->lineAtIndex(block->lineCount() - 1);
if (!lastLine)
return 0;
// If the last line-box on the last line of a block is a link, -webkit-line-clamp paints that box after the ellipsis.
// It does not actually move the link.
InlineBox* anchorBox = lastLine->lastChild();
if (!anchorBox || !anchorBox->renderer()->style()->isLink())
return 0;
return anchorBox;
}
void EllipsisBox::paintMarkupBox(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom, RenderStyle* style)
{
InlineBox* markupBox = this->markupBox();
if (!markupBox)
return;
LayoutPoint adjustedPaintOffset = paintOffset;
adjustedPaintOffset.move(x() + m_logicalWidth - markupBox->x(),
y() + style->fontMetrics().ascent() - (markupBox->y() + markupBox->renderer()->style(isFirstLineStyle())->fontMetrics().ascent()));
markupBox->paint(paintInfo, adjustedPaintOffset, lineTop, lineBottom);
}
IntRect EllipsisBox::selectionRect()
{
RenderStyle* style = m_renderer->style(isFirstLineStyle());
const Font& font = style->font();
// FIXME: Why is this always LTR? Fix by passing correct text run flags below.
return enclosingIntRect(font.selectionRectForText(RenderBlock::constructTextRun(renderer(), font, m_str, style, TextRun::AllowTrailingExpansion), IntPoint(x(), y() + root()->selectionTopAdjustedForPrecedingBlock()), root()->selectionHeightAdjustedForPrecedingBlock()));
}
void EllipsisBox::paintSelection(GraphicsContext* context, const LayoutPoint& paintOffset, RenderStyle* style, const Font& font)
{
Color textColor = style->visitedDependentColor(CSSPropertyColor);
Color c = m_renderer->selectionBackgroundColor();
if (!c.isValid() || !c.alpha())
return;
// If the text color ends up being the same as the selection background, invert the selection
// background.
if (textColor == c)
c = Color(0xff - c.red(), 0xff - c.green(), 0xff - c.blue());
GraphicsContextStateSaver stateSaver(*context);
LayoutUnit top = root()->selectionTop();
LayoutUnit h = root()->selectionHeight();
FloatRect clipRect(x() + paintOffset.x(), top + paintOffset.y(), m_logicalWidth, h);
alignSelectionRectToDevicePixels(clipRect);
context->clip(clipRect);
// FIXME: Why is this always LTR? Fix by passing correct text run flags below.
context->drawHighlightForText(font, RenderBlock::constructTextRun(renderer(), font, m_str, style, TextRun::AllowTrailingExpansion), roundedIntPoint(LayoutPoint(x() + paintOffset.x(), y() + paintOffset.y() + top)), h, c, style->colorSpace());
}
bool EllipsisBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
{
LayoutPoint adjustedLocation = accumulatedOffset + roundedLayoutPoint(topLeft());
// Hit test the markup box.
if (InlineBox* markupBox = this->markupBox()) {
RenderStyle* style = m_renderer->style(isFirstLineStyle());
LayoutUnit mtx = adjustedLocation.x() + m_logicalWidth - markupBox->x();
LayoutUnit mty = adjustedLocation.y() + style->fontMetrics().ascent() - (markupBox->y() + markupBox->renderer()->style(isFirstLineStyle())->fontMetrics().ascent());
if (markupBox->nodeAtPoint(request, result, locationInContainer, LayoutPoint(mtx, mty), lineTop, lineBottom)) {
renderer()->updateHitTestResult(result, locationInContainer.point() - LayoutSize(mtx, mty));
return true;
}
}
LayoutRect boundsRect(adjustedLocation, LayoutSize(m_logicalWidth, m_height));
if (visibleToHitTesting() && boundsRect.intersects(HitTestLocation::rectForPoint(locationInContainer.point(), 0, 0, 0, 0))) {
renderer()->updateHitTestResult(result, locationInContainer.point() - toLayoutSize(adjustedLocation));
if (!result.addNodeToRectBasedTestResult(renderer()->node(), request, locationInContainer, boundsRect))
return true;
}
return false;
}
} // namespace WebCore
|
