mirror of
https://github.com/mozilla/gecko-dev.git
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268 lines
9.4 KiB
C++
268 lines
9.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/HTMLHRElement.h"
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#include "mozilla/dom/HTMLHRElementBinding.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT(HR)
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namespace mozilla {
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namespace dom {
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HTMLHRElement::HTMLHRElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
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: nsGenericHTMLElement(aNodeInfo)
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{
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}
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HTMLHRElement::~HTMLHRElement()
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{
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}
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NS_IMPL_ISUPPORTS_INHERITED(HTMLHRElement, nsGenericHTMLElement,
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nsIDOMHTMLHRElement)
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NS_IMPL_ELEMENT_CLONE(HTMLHRElement)
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NS_IMPL_STRING_ATTR(HTMLHRElement, Align, align)
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NS_IMPL_BOOL_ATTR(HTMLHRElement, NoShade, noshade)
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NS_IMPL_STRING_ATTR(HTMLHRElement, Size, size)
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NS_IMPL_STRING_ATTR(HTMLHRElement, Width, width)
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NS_IMPL_STRING_ATTR(HTMLHRElement, Color, color)
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bool
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HTMLHRElement::ParseAttribute(int32_t aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult)
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{
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static const nsAttrValue::EnumTable kAlignTable[] = {
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{ "left", NS_STYLE_TEXT_ALIGN_LEFT },
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{ "right", NS_STYLE_TEXT_ALIGN_RIGHT },
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{ "center", NS_STYLE_TEXT_ALIGN_CENTER },
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{ 0 }
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};
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if (aNamespaceID == kNameSpaceID_None) {
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if (aAttribute == nsGkAtoms::width) {
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return aResult.ParseSpecialIntValue(aValue);
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}
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if (aAttribute == nsGkAtoms::size) {
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return aResult.ParseIntWithBounds(aValue, 1, 1000);
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}
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if (aAttribute == nsGkAtoms::align) {
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return aResult.ParseEnumValue(aValue, kAlignTable, false);
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}
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if (aAttribute == nsGkAtoms::color) {
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return aResult.ParseColor(aValue);
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}
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}
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return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aResult);
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}
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void
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HTMLHRElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
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nsRuleData* aData)
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{
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bool noshade = false;
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const nsAttrValue* colorValue = aAttributes->GetAttr(nsGkAtoms::color);
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nscolor color;
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bool colorIsSet = colorValue && colorValue->GetColorValue(color);
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if (aData->mSIDs & (NS_STYLE_INHERIT_BIT(Position) |
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NS_STYLE_INHERIT_BIT(Border))) {
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if (colorIsSet) {
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noshade = true;
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} else {
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noshade = !!aAttributes->GetAttr(nsGkAtoms::noshade);
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}
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}
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if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Margin)) {
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// align: enum
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const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::align);
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if (value && value->Type() == nsAttrValue::eEnum) {
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// Map align attribute into auto side margins
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nsCSSValue* marginLeft = aData->ValueForMarginLeft();
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nsCSSValue* marginRight = aData->ValueForMarginRight();
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switch (value->GetEnumValue()) {
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case NS_STYLE_TEXT_ALIGN_LEFT:
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if (marginLeft->GetUnit() == eCSSUnit_Null)
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marginLeft->SetFloatValue(0.0f, eCSSUnit_Pixel);
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if (marginRight->GetUnit() == eCSSUnit_Null)
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marginRight->SetAutoValue();
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break;
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case NS_STYLE_TEXT_ALIGN_RIGHT:
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if (marginLeft->GetUnit() == eCSSUnit_Null)
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marginLeft->SetAutoValue();
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if (marginRight->GetUnit() == eCSSUnit_Null)
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marginRight->SetFloatValue(0.0f, eCSSUnit_Pixel);
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break;
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case NS_STYLE_TEXT_ALIGN_CENTER:
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if (marginLeft->GetUnit() == eCSSUnit_Null)
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marginLeft->SetAutoValue();
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if (marginRight->GetUnit() == eCSSUnit_Null)
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marginRight->SetAutoValue();
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break;
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}
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}
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}
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if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Position)) {
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// width: integer, percent
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nsCSSValue* width = aData->ValueForWidth();
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if (width->GetUnit() == eCSSUnit_Null) {
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const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);
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if (value && value->Type() == nsAttrValue::eInteger) {
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width->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
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} else if (value && value->Type() == nsAttrValue::ePercent) {
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width->SetPercentValue(value->GetPercentValue());
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}
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}
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nsCSSValue* height = aData->ValueForHeight();
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if (height->GetUnit() == eCSSUnit_Null) {
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// size: integer
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if (noshade) {
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// noshade case: size is set using the border
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height->SetAutoValue();
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} else {
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// normal case
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// the height includes the top and bottom borders that are initially 1px.
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// for size=1, html.css has a special case rule that makes this work by
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// removing all but the top border.
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const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::size);
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if (value && value->Type() == nsAttrValue::eInteger) {
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height->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
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} // else use default value from html.css
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}
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}
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}
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if ((aData->mSIDs & NS_STYLE_INHERIT_BIT(Border)) && noshade) { // if not noshade, border styles are dealt with by html.css
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// size: integer
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// if a size is set, use half of it per side, otherwise, use 1px per side
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float sizePerSide;
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bool allSides = true;
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const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::size);
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if (value && value->Type() == nsAttrValue::eInteger) {
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sizePerSide = (float)value->GetIntegerValue() / 2.0f;
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if (sizePerSide < 1.0f) {
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// XXX When the pixel bug is fixed, all the special casing for
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// subpixel borders should be removed.
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// In the meantime, this makes http://www.microsoft.com/ look right.
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sizePerSide = 1.0f;
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allSides = false;
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}
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} else {
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sizePerSide = 1.0f; // default to a 2px high line
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}
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nsCSSValue* borderTopWidth = aData->ValueForBorderTopWidth();
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if (borderTopWidth->GetUnit() == eCSSUnit_Null) {
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borderTopWidth->SetFloatValue(sizePerSide, eCSSUnit_Pixel);
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}
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if (allSides) {
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nsCSSValue* borderRightWidth = aData->ValueForBorderRightWidth();
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if (borderRightWidth->GetUnit() == eCSSUnit_Null) {
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borderRightWidth->SetFloatValue(sizePerSide, eCSSUnit_Pixel);
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}
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nsCSSValue* borderBottomWidth = aData->ValueForBorderBottomWidth();
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if (borderBottomWidth->GetUnit() == eCSSUnit_Null) {
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borderBottomWidth->SetFloatValue(sizePerSide, eCSSUnit_Pixel);
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}
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nsCSSValue* borderLeftWidth = aData->ValueForBorderLeftWidth();
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if (borderLeftWidth->GetUnit() == eCSSUnit_Null) {
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borderLeftWidth->SetFloatValue(sizePerSide, eCSSUnit_Pixel);
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}
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}
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nsCSSValue* borderTopStyle = aData->ValueForBorderTopStyle();
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if (borderTopStyle->GetUnit() == eCSSUnit_Null) {
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borderTopStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID,
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eCSSUnit_Enumerated);
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}
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if (allSides) {
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nsCSSValue* borderRightStyle = aData->ValueForBorderRightStyle();
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if (borderRightStyle->GetUnit() == eCSSUnit_Null) {
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borderRightStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID,
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eCSSUnit_Enumerated);
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}
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nsCSSValue* borderBottomStyle = aData->ValueForBorderBottomStyle();
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if (borderBottomStyle->GetUnit() == eCSSUnit_Null) {
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borderBottomStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID,
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eCSSUnit_Enumerated);
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}
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nsCSSValue* borderLeftStyle = aData->ValueForBorderLeftStyle();
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if (borderLeftStyle->GetUnit() == eCSSUnit_Null) {
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borderLeftStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID,
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eCSSUnit_Enumerated);
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}
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// If it would be noticeable, set the border radius to
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// 10000px on all corners; this triggers the clamping to make
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// circular ends. This assumes the <hr> isn't larger than
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// that in *both* dimensions.
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for (const nsCSSProperty* props =
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nsCSSProps::SubpropertyEntryFor(eCSSProperty_border_radius);
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*props != eCSSProperty_UNKNOWN; ++props) {
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nsCSSValue* dimen = aData->ValueFor(*props);
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if (dimen->GetUnit() == eCSSUnit_Null) {
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dimen->SetFloatValue(10000.0f, eCSSUnit_Pixel);
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}
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}
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}
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}
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if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Color)) {
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// color: a color
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// (we got the color attribute earlier)
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nsCSSValue* colorValue = aData->ValueForColor();
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if (colorIsSet &&
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colorValue->GetUnit() == eCSSUnit_Null &&
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aData->mPresContext->UseDocumentColors()) {
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colorValue->SetColorValue(color);
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}
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}
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
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}
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NS_IMETHODIMP_(bool)
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HTMLHRElement::IsAttributeMapped(const nsIAtom* aAttribute) const
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{
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static const MappedAttributeEntry attributes[] = {
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{ &nsGkAtoms::align },
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{ &nsGkAtoms::width },
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{ &nsGkAtoms::size },
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{ &nsGkAtoms::color },
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{ &nsGkAtoms::noshade },
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{ nullptr },
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};
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static const MappedAttributeEntry* const map[] = {
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attributes,
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sCommonAttributeMap,
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};
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return FindAttributeDependence(aAttribute, map);
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}
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nsMapRuleToAttributesFunc
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HTMLHRElement::GetAttributeMappingFunction() const
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{
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return &MapAttributesIntoRule;
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}
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JSObject*
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HTMLHRElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return HTMLHRElementBinding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace mozilla
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} // namespace dom
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