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Diffstat (limited to 'libjava/javax/accessibility/AccessibleRelation.java')
| -rw-r--r-- | libjava/javax/accessibility/AccessibleRelation.java | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/libjava/javax/accessibility/AccessibleRelation.java b/libjava/javax/accessibility/AccessibleRelation.java new file mode 100644 index 00000000000..68f1f646a59 --- /dev/null +++ b/libjava/javax/accessibility/AccessibleRelation.java @@ -0,0 +1,220 @@ +/* AccessibleRelation.java -- the relation between accessible objects + Copyright (C) 2002 Free Software Foundation + +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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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 javax.accessibility; + +/** + * The relation between one accessible object and one or more other objects. + * For example, a button may control an action. An AccessibleRelationSet + * summarizes all relations of the object. This strongly typed "enumeration" + * supports localized strings. If the constants of this class are not + * adequate, new ones may be added in a similar matter. + * + * @author Eric Blake <ebb9@email.byu.edu> + * @since 1.2 + * @status updated to 1.4 + */ +public class AccessibleRelation extends AccessibleBundle +{ + /** + * Indicates the object labels other objects. + * + * @see #getTarget() + * @see #CONTROLLER_FOR + * @see #CONTROLLED_BY + * @see #LABELED_BY + * @see #MEMBER_OF + */ + public static final String LABEL_FOR = "labelFor"; + + /** + * Indicates the object is labeled by other objects. + * + * @see #getTarget() + * @see #CONTROLLER_FOR + * @see #CONTROLLED_BY + * @see #LABEL_FOR + * @see #MEMBER_OF + */ + public static final String LABELED_BY = "labeledBy"; + + /** + * Indicates an object is a member of a group of target objects. + * + * @see #getTarget() + * @see #CONTROLLER_FOR + * @see #CONTROLLED_BY + * @see #LABEL_FOR + * @see #LABELED_BY + */ + public static final String MEMBER_OF = "memberOf"; + + /** + * Indicates an object is a controller for other objects. + * + * @see #getTarget() + * @see #CONTROLLED_BY + * @see #LABEL_FOR + * @see #LABELED_BY + * @see #MEMBER_OF + */ + public static final String CONTROLLER_FOR = "controllerFor"; + + /** + * Indicates an object is controlled by other objects. + * + * @see #getTarget() + * @see #CONTROLLER_FOR + * @see #LABEL_FOR + * @see #LABELED_BY + * @see #MEMBER_OF + */ + public static final String CONTROLLED_BY = "controlledBy"; + + /** Indicates that the label target group has changed. */ + public static final String LABEL_FOR_PROPERTY = "labelForProperty"; + + /** Indicates that the labelling objects have changed. */ + public static final String LABELED_BY_PROPERTY = "labeledByProperty"; + + /** Indicates that group membership has changed. */ + public static final String MEMBER_OF_PROPERTY = "memberOfProperty"; + + /** Indicates that the controller target group has changed. */ + public static final String CONTROLLER_FOR_PROPERTY = "controllerForProperty"; + + /** Indicates that the controlling objects have changed. */ + public static final String CONTROLLED_BY_PROPERTY = "controlledByProperty"; + + /** An empty set of targets. */ + private static final Object[] EMPTY_TARGETS = { }; + + /** + * The related objects. + * + * @see #getTarget() + * @see #setTarget(Object) + * @see #setTarget(Object[]) + */ + Object[] targets; + + /** + * Create a new relation with a locale independent key, and no related + * objects. + * + * @param key the name of the role + * @see #toDisplayString(String, Locale) + */ + public AccessibleRelation(String key) + { + this.key = key; + targets = EMPTY_TARGETS; + } + + /** + * Create a new relation with a locale independent key, and a single related + * object. + * + * @param key the name of the role + * @param target the related object + * @see #toDisplayString(String, Locale) + */ + public AccessibleRelation(String key, Object target) + { + this.key = key; + targets = new Object[] { target }; + } + + /** + * Create a new relation with a locale independent key, and the given + * related objects. + * + * @param key the name of the role + * @param targets the related objects + * @see #toDisplayString(String, Locale) + */ + public AccessibleRelation(String key, Object[] targets) + { + this.key = key; + this.targets = targets == null ? EMPTY_TARGETS : targets; + } + + /** + * Return the key for this relation. + * + * @return the key + * @see #CONTROLLER_FOR + * @see #CONTROLLED_BY + * @see #LABEL_FOR + * @see #LABELED_BY + * @see #MEMBER_OF + */ + public String getKey() + { + return key; + } + + /** + * Return the targets of this relation. + * + * @return the targets, may be empty, but never null + */ + public Object[] getTarget() + { + return targets; + } + + /** + * Set the target to a single object. + * + * @param target the new target + */ + public void setTarget(Object target) + { + targets = new Object[] { target }; + } + + /** + * Set the target to an array of objects. + * + * @param targets the new targets + */ + public void setTarget(Object[] targets) + { + this.targets = targets == null ? EMPTY_TARGETS : targets; + } +} // class AccessibleRelation |