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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/javax/swing/text/html/parser/htmlAttributeSet.java | |
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Diffstat (limited to 'libjava/classpath/gnu/javax/swing/text/html/parser/htmlAttributeSet.java')
-rw-r--r-- | libjava/classpath/gnu/javax/swing/text/html/parser/htmlAttributeSet.java | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/swing/text/html/parser/htmlAttributeSet.java b/libjava/classpath/gnu/javax/swing/text/html/parser/htmlAttributeSet.java new file mode 100644 index 000000000..7eb0f616e --- /dev/null +++ b/libjava/classpath/gnu/javax/swing/text/html/parser/htmlAttributeSet.java @@ -0,0 +1,183 @@ +/* htmlAttributeSet.java -- A set to store HTML attributes + Copyright (C) 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.javax.swing.text.html.parser; + +import java.util.Enumeration; + +import javax.swing.text.AttributeSet; +import javax.swing.text.SimpleAttributeSet; +import javax.swing.text.html.HTML; + +/** + * A set, adapted to store HTML attributes. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public class htmlAttributeSet + extends SimpleAttributeSet +{ + public static final htmlAttributeSet EMPTY_HTML_ATTRIBUTE_SET = + new htmlAttributeSet(); + + AttributeSet parent; + + /** + * Looks in this set and, if not found, later looks in the parent set. Calls + * toString(), allowing to pass as HTML.Attribute, as String to this method. + * + * @param _key A key to search for a value. + * @return The value, if one is defined. + */ + public Object getAttribute(Object _key) + { + Object v = super.getAttribute(_key); + if (v != null || _key == null) + return v; + + Object key = _key.toString().toLowerCase(); + + v = super.getAttribute(key); + if (v != null) + return v; + + key = HTML.getAttributeKey((String) key); + v = super.getAttribute(key); + if (v != null) + return v; + + if (parent != null) + return parent.getAttribute(key); + else + return null; + } + + /** + * The name set must return HTML.Attribute and not a string, + * where applicable. + */ + public Enumeration getAttributeNames() + { + // Replace the string keys by HTML.attribute, where applicable + final Enumeration enumeration = super.getAttributeNames(); + + return new Enumeration() + { + public boolean hasMoreElements() + { + return enumeration.hasMoreElements(); + } + + public Object nextElement() + { + Object key = enumeration.nextElement(); + if (key instanceof String) + { + HTML.Attribute hKey = HTML.getAttributeKey((String) key); + if (hKey != null) + return hKey; + } + return key; + } + }; + } + + /** + * Set the parent set, containing the default values. + * + * @param a_parent + */ + public void setResolveParent(AttributeSet a_parent) + { + parent = a_parent; + } + + /** + * Get the parent set, containing the default values. + * + * @return the parent, used to resolve the attributes. + */ + public AttributeSet getResolveParent() + { + return parent; + } + + /** + * Add the attribute to this attribute set. + * + * @param key Attribute key (if string, it will be case insensitive) + * @param value Attribute value + */ + public void addAttribute(Object key, Object value) + { + if (key instanceof String) + super.addAttribute(((String) key).toLowerCase(), value); + else + super.addAttribute(key, value); + } + + /** + * Copy attributes. The returned copy does not longer contains the extended + * features, needed to participate in the HTML parsing. The returned set may + * not be mutable. + */ + public AttributeSet copyAttributes() + { + if (getAttributeCount() <= 8) + // For the small size, typical in HTML tags, the direct iteration is + // faster than more complex algorithms. + return new SmallHtmlAttributeSet(this); + else + return (AttributeSet) clone(); + } + + /** + * Returns a clone of the attribute set. + * + * @return A clone of the attribute set. + */ + public Object clone() + { + htmlAttributeSet set = new htmlAttributeSet(); + set.addAttributes(this); + AttributeSet parent = getResolveParent(); + if (parent != null) + set.setResolveParent(parent); + return set; + } +} |