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accessible/src/base/StyleInfo.cpp@6474c204b198 (annotated)

accessible/src/base/StyleInfo.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* vim: set expandtab shiftwidth=2 tabstop=2: */
michael@0	3	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#include "StyleInfo.h"
michael@0	8
michael@0	9	#include "mozilla/dom/Element.h"
michael@0	10	#include "nsComputedDOMStyle.h"
michael@0	11	#include "nsCSSProps.h"
michael@0	12	#include "nsIFrame.h"
michael@0	13
michael@0	14	using namespace mozilla;
michael@0	15	using namespace mozilla::a11y;
michael@0	16
michael@0	17	StyleInfo::StyleInfo(dom::Element* aElement, nsIPresShell* aPresShell) :
michael@0	18	mElement(aElement)
michael@0	19	{
michael@0	20	mStyleContext =
michael@0	21	nsComputedDOMStyle::GetStyleContextForElementNoFlush(aElement,
michael@0	22	nullptr,
michael@0	23	aPresShell);
michael@0	24	}
michael@0	25
michael@0	26	void
michael@0	27	StyleInfo::Display(nsAString& aValue)
michael@0	28	{
michael@0	29	aValue.Truncate();
michael@0	30	AppendASCIItoUTF16(
michael@0	31	nsCSSProps::ValueToKeyword(mStyleContext->StyleDisplay()->mDisplay,
michael@0	32	nsCSSProps::kDisplayKTable), aValue);
michael@0	33	}
michael@0	34
michael@0	35	void
michael@0	36	StyleInfo::TextAlign(nsAString& aValue)
michael@0	37	{
michael@0	38	aValue.Truncate();
michael@0	39	AppendASCIItoUTF16(
michael@0	40	nsCSSProps::ValueToKeyword(mStyleContext->StyleText()->mTextAlign,
michael@0	41	nsCSSProps::kTextAlignKTable), aValue);
michael@0	42	}
michael@0	43
michael@0	44	void
michael@0	45	StyleInfo::TextIndent(nsAString& aValue)
michael@0	46	{
michael@0	47	aValue.Truncate();
michael@0	48
michael@0	49	const nsStyleCoord& styleCoord =
michael@0	50	mStyleContext->StyleText()->mTextIndent;
michael@0	51
michael@0	52	nscoord coordVal = 0;
michael@0	53	switch (styleCoord.GetUnit()) {
michael@0	54	case eStyleUnit_Coord:
michael@0	55	coordVal = styleCoord.GetCoordValue();
michael@0	56	break;
michael@0	57
michael@0	58	case eStyleUnit_Percent:
michael@0	59	{
michael@0	60	nsIFrame* frame = mElement->GetPrimaryFrame();
michael@0	61	nsIFrame* containerFrame = frame->GetContainingBlock();
michael@0	62	nscoord percentageBase = containerFrame->GetContentRect().width;
michael@0	63	coordVal = NSCoordSaturatingMultiply(percentageBase,
michael@0	64	styleCoord.GetPercentValue());
michael@0	65	break;
michael@0	66	}
michael@0	67
michael@0	68	case eStyleUnit_Null:
michael@0	69	case eStyleUnit_Normal:
michael@0	70	case eStyleUnit_Auto:
michael@0	71	case eStyleUnit_None:
michael@0	72	case eStyleUnit_Factor:
michael@0	73	case eStyleUnit_Degree:
michael@0	74	case eStyleUnit_Grad:
michael@0	75	case eStyleUnit_Radian:
michael@0	76	case eStyleUnit_Turn:
michael@0	77	case eStyleUnit_FlexFraction:
michael@0	78	case eStyleUnit_Integer:
michael@0	79	case eStyleUnit_Enumerated:
michael@0	80	case eStyleUnit_Calc:
michael@0	81	break;
michael@0	82	}
michael@0	83
michael@0	84	aValue.AppendFloat(nsPresContext::AppUnitsToFloatCSSPixels(coordVal));
michael@0	85	aValue.AppendLiteral("px");
michael@0	86	}
michael@0	87
michael@0	88	void
michael@0	89	StyleInfo::Margin(css::Side aSide, nsAString& aValue)
michael@0	90	{
michael@0	91	aValue.Truncate();
michael@0	92
michael@0	93	nscoord coordVal = mElement->GetPrimaryFrame()->GetUsedMargin().Side(aSide);
michael@0	94	aValue.AppendFloat(nsPresContext::AppUnitsToFloatCSSPixels(coordVal));
michael@0	95	aValue.AppendLiteral("px");
michael@0	96	}
michael@0	97
michael@0	98	void
michael@0	99	StyleInfo::FormatColor(const nscolor& aValue, nsString& aFormattedValue)
michael@0	100	{
michael@0	101	// Combine the string like rgb(R, G, B) from nscolor.
michael@0	102	aFormattedValue.AppendLiteral("rgb(");
michael@0	103	aFormattedValue.AppendInt(NS_GET_R(aValue));
michael@0	104	aFormattedValue.AppendLiteral(", ");
michael@0	105	aFormattedValue.AppendInt(NS_GET_G(aValue));
michael@0	106	aFormattedValue.AppendLiteral(", ");
michael@0	107	aFormattedValue.AppendInt(NS_GET_B(aValue));
michael@0	108	aFormattedValue.Append(')');
michael@0	109	}
michael@0	110
michael@0	111	void
michael@0	112	StyleInfo::FormatFontStyle(const nscoord& aValue, nsAString& aFormattedValue)
michael@0	113	{
michael@0	114	nsCSSKeyword keyword =
michael@0	115	nsCSSProps::ValueToKeywordEnum(aValue, nsCSSProps::kFontStyleKTable);
michael@0	116	AppendUTF8toUTF16(nsCSSKeywords::GetStringValue(keyword), aFormattedValue);
michael@0	117	}
michael@0	118
michael@0	119	void
michael@0	120	StyleInfo::FormatTextDecorationStyle(uint8_t aValue, nsAString& aFormattedValue)
michael@0	121	{
michael@0	122	nsCSSKeyword keyword =
michael@0	123	nsCSSProps::ValueToKeywordEnum(aValue,
michael@0	124	nsCSSProps::kTextDecorationStyleKTable);
michael@0	125	AppendUTF8toUTF16(nsCSSKeywords::GetStringValue(keyword), aFormattedValue);
michael@0	126	}