Mercurial > projects > dwt-mac
diff dwt/accessibility/AccessibleTextAdapter.d @ 0:380af2bdd8e5
Upload of whole dwt tree
author | Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> |
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date | Sat, 09 Aug 2008 17:00:02 +0200 |
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children | f565d3a95c0a |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessibility/AccessibleTextAdapter.d Sat Aug 09 17:00:02 2008 +0200 @@ -0,0 +1,81 @@ +/******************************************************************************* + * Copyright (c) 2000, 2003 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * + * Port to the D Programming language: + * Jacob Carlborg <jacob.carlborg@gmail.com> + *******************************************************************************/ +module dwt.accessibility.AccessibleTextAdapter; + +import dwt.accessibility.AccessibleTextListener; +import dwt.accessibility.AccessibleTextEvent; +import dwt.dwthelper.utils; + +/** + * This adapter class provides default implementations for the + * methods described by the <code>AccessibleTextListener</code> interface. + * <p> + * Classes that wish to deal with <code>AccessibleTextEvent</code>s can + * extend this class and override only the methods that they are + * interested in. + * </p><p> + * Note: Accessibility clients use child identifiers to specify + * whether they want information about a control or one of its children. + * Child identifiers are increasing integers beginning with 0. + * The identifier CHILDID_SELF represents the control itself. + * When returning a child identifier to a client, you may use CHILDID_NONE + * to indicate that no child or control has the required information. + * </p><p> + * Note: This adapter is typically used by implementors of + * a custom control to provide very detailed information about + * the control instance to accessibility clients. + * </p> + * + * @see AccessibleTextListener + * @see AccessibleTextEvent + * + * @since 3.0 + */ +public abstract class AccessibleTextAdapter : AccessibleTextListener { + + /** + * Sent when an accessibility client requests the current character offset + * of the text caret. + * The default behavior is to do nothing. + * <p> + * Return the caret offset in the <code>offset</code> + * field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying a child of the control</li> + * <li>offset [OUT] - the current offset of the text caret</li> + * </ul> + */ + public void getCaretOffset (AccessibleTextEvent e) { + } + + /** + * Sent when an accessibility client requests the range of the current + * text selection. + * The default behavior is to do nothing. + * <p> + * Return the selection start offset and non-negative length in the + * <code>offset</code> and <code>length</code> fields of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying a child of the control</li> + * <li>offset [OUT] - the offset of the current text selection</li> + * <li>length [OUT] - the length of the current text selection</li> + * </ul> + */ + public void getSelectionRange (AccessibleTextEvent e) { + } +}