296 lines
8.2 KiB
Java
296 lines
8.2 KiB
Java
/*
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* Copyright (c) 2007 Henri Sivonen
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* Copyright (c) 2007-2011 Mozilla Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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package nu.validator.htmlparser.impl;
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import nu.validator.htmlparser.annotation.Inline;
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import nu.validator.htmlparser.annotation.Local;
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import nu.validator.htmlparser.annotation.NsUri;
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final class StackNode<T> {
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final int flags;
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final @Local String name;
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final @Local String popName;
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final @NsUri String ns;
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final T node;
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// Only used on the list of formatting elements
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HtmlAttributes attributes;
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private int refcount = 1;
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// [NOCPP[
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private final TaintableLocatorImpl locator;
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public TaintableLocatorImpl getLocator() {
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return locator;
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}
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// ]NOCPP]
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@Inline public int getFlags() {
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return flags;
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}
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public int getGroup() {
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return flags & ElementName.GROUP_MASK;
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}
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public boolean isScoping() {
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return (flags & ElementName.SCOPING) != 0;
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}
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public boolean isSpecial() {
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return (flags & ElementName.SPECIAL) != 0;
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}
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public boolean isFosterParenting() {
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return (flags & ElementName.FOSTER_PARENTING) != 0;
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}
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public boolean isHtmlIntegrationPoint() {
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return (flags & ElementName.HTML_INTEGRATION_POINT) != 0;
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}
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// [NOCPP[
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public boolean isOptionalEndTag() {
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return (flags & ElementName.OPTIONAL_END_TAG) != 0;
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}
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// ]NOCPP]
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/**
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* Constructor for copying. This doesn't take another <code>StackNode</code>
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* because in C++ the caller is reponsible for reobtaining the local names
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* from another interner.
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*
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* @param flags
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* @param ns
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* @param name
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* @param node
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* @param popName
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* @param attributes
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*/
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StackNode(int flags, @NsUri String ns, @Local String name, T node,
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@Local String popName, HtmlAttributes attributes
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// [NOCPP[
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, TaintableLocatorImpl locator
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// ]NOCPP]
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) {
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this.flags = flags;
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this.name = name;
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this.popName = popName;
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this.ns = ns;
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this.node = node;
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this.attributes = attributes;
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this.refcount = 1;
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// [NOCPP[
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this.locator = locator;
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// ]NOCPP]
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}
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/**
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* Short hand for well-known HTML elements.
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*
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* @param elementName
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* @param node
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*/
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StackNode(ElementName elementName, T node
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// [NOCPP[
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, TaintableLocatorImpl locator
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// ]NOCPP]
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) {
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this.flags = elementName.getFlags();
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this.name = elementName.name;
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this.popName = elementName.name;
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this.ns = "http://www.w3.org/1999/xhtml";
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this.node = node;
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this.attributes = null;
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this.refcount = 1;
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assert !elementName.isCustom() : "Don't use this constructor for custom elements.";
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// [NOCPP[
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this.locator = locator;
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// ]NOCPP]
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}
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/**
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* Constructor for HTML formatting elements.
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*
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* @param elementName
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* @param node
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* @param attributes
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*/
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StackNode(ElementName elementName, T node, HtmlAttributes attributes
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// [NOCPP[
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, TaintableLocatorImpl locator
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// ]NOCPP]
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) {
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this.flags = elementName.getFlags();
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this.name = elementName.name;
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this.popName = elementName.name;
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this.ns = "http://www.w3.org/1999/xhtml";
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this.node = node;
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this.attributes = attributes;
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this.refcount = 1;
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assert !elementName.isCustom() : "Don't use this constructor for custom elements.";
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// [NOCPP[
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this.locator = locator;
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// ]NOCPP]
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}
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/**
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* The common-case HTML constructor.
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*
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* @param elementName
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* @param node
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* @param popName
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*/
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StackNode(ElementName elementName, T node, @Local String popName
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// [NOCPP[
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, TaintableLocatorImpl locator
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// ]NOCPP]
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) {
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this.flags = elementName.getFlags();
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this.name = elementName.name;
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this.popName = popName;
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this.ns = "http://www.w3.org/1999/xhtml";
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this.node = node;
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this.attributes = null;
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this.refcount = 1;
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// [NOCPP[
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this.locator = locator;
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// ]NOCPP]
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}
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/**
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* Constructor for SVG elements. Note that the order of the arguments is
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* what distinguishes this from the HTML constructor. This is ugly, but
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* AFAICT the least disruptive way to make this work with Java's generics
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* and without unnecessary branches. :-(
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*
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* @param elementName
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* @param popName
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* @param node
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*/
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StackNode(ElementName elementName, @Local String popName, T node
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// [NOCPP[
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, TaintableLocatorImpl locator
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// ]NOCPP]
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) {
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this.flags = prepareSvgFlags(elementName.getFlags());
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this.name = elementName.name;
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this.popName = popName;
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this.ns = "http://www.w3.org/2000/svg";
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this.node = node;
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this.attributes = null;
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this.refcount = 1;
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// [NOCPP[
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this.locator = locator;
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// ]NOCPP]
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}
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/**
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* Constructor for MathML.
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*
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* @param elementName
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* @param node
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* @param popName
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* @param markAsIntegrationPoint
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*/
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StackNode(ElementName elementName, T node, @Local String popName,
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boolean markAsIntegrationPoint
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// [NOCPP[
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, TaintableLocatorImpl locator
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// ]NOCPP]
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) {
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this.flags = prepareMathFlags(elementName.getFlags(),
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markAsIntegrationPoint);
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this.name = elementName.name;
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this.popName = popName;
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this.ns = "http://www.w3.org/1998/Math/MathML";
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this.node = node;
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this.attributes = null;
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this.refcount = 1;
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// [NOCPP[
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this.locator = locator;
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// ]NOCPP]
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}
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private static int prepareSvgFlags(int flags) {
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flags &= ~(ElementName.FOSTER_PARENTING | ElementName.SCOPING
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| ElementName.SPECIAL | ElementName.OPTIONAL_END_TAG);
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if ((flags & ElementName.SCOPING_AS_SVG) != 0) {
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flags |= (ElementName.SCOPING | ElementName.SPECIAL | ElementName.HTML_INTEGRATION_POINT);
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}
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return flags;
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}
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private static int prepareMathFlags(int flags,
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boolean markAsIntegrationPoint) {
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flags &= ~(ElementName.FOSTER_PARENTING | ElementName.SCOPING
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| ElementName.SPECIAL | ElementName.OPTIONAL_END_TAG);
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if ((flags & ElementName.SCOPING_AS_MATHML) != 0) {
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flags |= (ElementName.SCOPING | ElementName.SPECIAL);
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}
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if (markAsIntegrationPoint) {
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flags |= ElementName.HTML_INTEGRATION_POINT;
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}
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return flags;
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}
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@SuppressWarnings("unused") private void destructor() {
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Portability.delete(attributes);
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}
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public void dropAttributes() {
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attributes = null;
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}
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// [NOCPP[
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/**
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* @see java.lang.Object#toString()
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*/
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@Override public @Local String toString() {
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return name;
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}
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// ]NOCPP]
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public void retain() {
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refcount++;
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}
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public void release() {
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refcount--;
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if (refcount == 0) {
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Portability.delete(this);
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}
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}
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}
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