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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set expandtab shiftwidth=2 tabstop=2: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "StyleInfo.h"
#include "mozilla/dom/Element.h"
#include "nsComputedDOMStyle.h"
#include "nsCSSProps.h"
#include "nsIFrame.h"
using namespace mozilla;
using namespace mozilla::a11y;
StyleInfo::StyleInfo(dom::Element* aElement, nsIPresShell* aPresShell) :
mElement(aElement)
{
mStyleContext =
nsComputedDOMStyle::GetStyleContextForElementNoFlush(aElement,
nullptr,
aPresShell);
}
void
StyleInfo::Display(nsAString& aValue)
{
aValue.Truncate();
AppendASCIItoUTF16(
nsCSSProps::ValueToKeyword(mStyleContext->StyleDisplay()->mDisplay,
nsCSSProps::kDisplayKTable), aValue);
}
void
StyleInfo::TextAlign(nsAString& aValue)
{
aValue.Truncate();
AppendASCIItoUTF16(
nsCSSProps::ValueToKeyword(mStyleContext->StyleText()->mTextAlign,
nsCSSProps::kTextAlignKTable), aValue);
}
void
StyleInfo::TextIndent(nsAString& aValue)
{
aValue.Truncate();
const nsStyleCoord& styleCoord =
mStyleContext->StyleText()->mTextIndent;
nscoord coordVal = 0;
switch (styleCoord.GetUnit()) {
case eStyleUnit_Coord:
coordVal = styleCoord.GetCoordValue();
aValue.AppendFloat(nsPresContext::AppUnitsToFloatCSSPixels(coordVal));
aValue.AppendLiteral("px");
break;
case eStyleUnit_Percent:
aValue.AppendFloat(styleCoord.GetPercentValue() * 100);
aValue.AppendLiteral("%");
break;
case eStyleUnit_Null:
case eStyleUnit_Normal:
case eStyleUnit_Auto:
case eStyleUnit_None:
case eStyleUnit_Factor:
case eStyleUnit_Degree:
case eStyleUnit_Grad:
case eStyleUnit_Radian:
case eStyleUnit_Turn:
case eStyleUnit_FlexFraction:
case eStyleUnit_Integer:
case eStyleUnit_Enumerated:
case eStyleUnit_Calc:
aValue.AppendLiteral("0px");
break;
}
}
void
StyleInfo::Margin(css::Side aSide, nsAString& aValue)
{
MOZ_ASSERT(mElement->GetPrimaryFrame(), " mElement->GetPrimaryFrame() needs to be valid pointer");
aValue.Truncate();
nscoord coordVal = mElement->GetPrimaryFrame()->GetUsedMargin().Side(aSide);
aValue.AppendFloat(nsPresContext::AppUnitsToFloatCSSPixels(coordVal));
aValue.AppendLiteral("px");
}
void
StyleInfo::FormatColor(const nscolor& aValue, nsString& aFormattedValue)
{
// Combine the string like rgb(R, G, B) from nscolor.
aFormattedValue.AppendLiteral("rgb(");
aFormattedValue.AppendInt(NS_GET_R(aValue));
aFormattedValue.AppendLiteral(", ");
aFormattedValue.AppendInt(NS_GET_G(aValue));
aFormattedValue.AppendLiteral(", ");
aFormattedValue.AppendInt(NS_GET_B(aValue));
aFormattedValue.Append(')');
}
void
StyleInfo::FormatFontStyle(const nscoord& aValue, nsAString& aFormattedValue)
{
nsCSSKeyword keyword =
nsCSSProps::ValueToKeywordEnum(aValue, nsCSSProps::kFontStyleKTable);
AppendUTF8toUTF16(nsCSSKeywords::GetStringValue(keyword), aFormattedValue);
}
void
StyleInfo::FormatTextDecorationStyle(uint8_t aValue, nsAString& aFormattedValue)
{
nsCSSKeyword keyword =
nsCSSProps::ValueToKeywordEnum(aValue,
nsCSSProps::kTextDecorationStyleKTable);
AppendUTF8toUTF16(nsCSSKeywords::GetStringValue(keyword), aFormattedValue);
}
|
