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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
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tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/javax/accessibility/AccessibleAction.java
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+/* AccessibleAction.java -- aids in accessibly performing actions
+ Copyright (C) 2000, 2002, 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 javax.accessibility;
+
+/**
+ * If an object implements this interface then it must be able to perform one
+ * or more actions. Accessibility software can use the implementations of this
+ * interface to discover and perform actions on an object.
+ *
+ * <p>The <code>AccessibleContext.getAccessibleAction()</code> method should
+ * return <code>null</code> if an object does not implement this interface.
+ *
+ * @author Eric Blake (ebb9@email.byu.edu)
+ * @see Accessible
+ * @see AccessibleContext
+ * @see AccessibleContext#getAccessibleAction()
+ * @since 1.2
+ * @status updated to 1.4
+ */
+public interface AccessibleAction
+{
+
+ /**
+ * The name of an action which decrements a value.
+ *
+ * @since 1.5
+ */
+ static final String DECREMENT = "decrement";
+
+ /**
+ * The name of an action which increments a value.
+ *
+ * @since 1.5
+ */
+ static final String INCREMENT = "increment";
+
+ /**
+ * The name of an action which toggles the expansion of a tree node.
+ *
+ * @since 1.5
+ */
+ static final String TOGGLE_EXPAND = "toggle expand";
+
+ /**
+ * The name of an action which causes a component to perform its default
+ * action.
+ *
+ * @since 1.6
+ */
+ static final String CLICK = "click";
+
+ /**
+ * The name of an action which toggles the state of a popup, causing a
+ * hidden popup to be displayed and a visible popup to be hidden.
+ *
+ * @since 1.6
+ */
+ static final String TOGGLE_POPUP = "toggle popup";
+
+ /**
+ * Get the number possible actions for this object, with the zeroth
+ * representing the default action.
+ *
+ * @return the 0-based number of actions
+ */
+ int getAccessibleActionCount();
+
+ /**
+ * Get a description for the specified action. Returns null if out of
+ * bounds.
+ *
+ * @param i the action to describe, 0-based
+ * @return description of the action
+ */
+ String getAccessibleActionDescription(int i);
+
+ /**
+ * Perform the specified action. Does nothing if out of bounds.
+ *
+ * @param i the action to perform, 0-based
+ * @return true if the action was performed
+ */
+ boolean doAccessibleAction(int i);
+} // interface AccessibleAction