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Text File | 1999-05-28 | 3.6 KB | 92 lines | [TEXT/CWIE] |
- // TextFieldOwner.java
- // By Ned Etcode
- // Copyright 1996, 1997 Netscape Communications Corp. All rights reserved.
-
- package netscape.application;
-
- import netscape.util.*;
-
- /** Interface implemented by objects wanting information on important TextField
- * events, such as when editing has completed. An object implementing this
- * interface must make itself the TextField's owner using the TextField's
- * <b>setOwner()</b> method.
- */
-
- public interface TextFieldOwner {
- /** Edit mode will end (or did end) because the TextField received a Tab
- * key.
- */
- public static final int TAB_KEY = 0;
-
- /** Edit mode will or did end because the TextField received a
- * BackTab key.
- */
- public static final int BACKTAB_KEY = 1;
-
- /** Edit mode will or did end because the TextField received a
- * Return key.
- */
- public static final int RETURN_KEY = 2;
-
- /** Edit mode will or did end because another TextField acquired
- * key focus.
- */
- public static final int LOST_FOCUS = 3;
-
- /** Edit mode will or did end because the TextField resigned key
- * focus.
- */
- public static final int RESIGNED_FOCUS = 4;
-
-
-
- /** Sent by <b>textField</b> upon entering edit mode.
- */
- public void textEditingDidBegin(TextField textField);
-
- /** Sent by <b>textField</b> each time the user changes the
- * <b>textField</b>'s contents.
- */
- public void textWasModified(TextField textField);
-
- /** Sent by <b>textField</b> when it is about to complete editing.
- * <b>endCondition</b> describes why editing will end, with the possible
- * values TAB_KEY, BACKTAB_KEY, RETURN_KEY, LOST_FOCUS, and
- * RESIGNED_FOCUS. For TAB_KEY, BACKTAB_KEY, and RETURN_KEY, returning
- * <b>false</b> causes the TextField to remain in edit mode, and
- * returning <b>true</b> allows editing to complete. With the LOST_FOCUS
- * and RESIGNED_FOCUS conditions, the TextField exits edit mode
- * regardless of the return value (when another TextField requests input
- * focus, or the TextField resigns it voluntarily, there's no way to
- * prevent it). <b>contentsChanged</b> is <b>true</b> if
- * the TextField's contents have been modified since entering edit mode.
- */
- public boolean textEditingWillEnd(TextField textField, int endCondition,
- boolean contentsChanged);
-
- /** Sent by <b>textField</b> when text editing has completed.
- * <b>endCondition</b> describes why editing ended, with the possible
- * values TAB_KEY, BACKTAB_KEY, RETURN_KEY, LOST_FOCUS, and
- * RESIGNED_FOCUS. <b>contentsChanged</b> is <b>true</b> if the
- * TextField's contents were modified since entering edit mode.<p>
- * If you need to implement special behavior when the user switches
- * TextFields using keystrokes (Tab, Return, and so on), do it in this
- * method. For example, if you need to determine which TextField should
- * receive keys next without using TextField's existing
- * <b>setTabField()</b> and <b>setBacktabField()</b> methods, you could
- * use the following code for this method:
- * <pre>
- * if (endCondition == TextFieldOwner.RETURN_KEY) {
- * field1.selectText();
- * } else if (endCondition == TextFieldOwner.TAB_KEY) {
- * field2.selectText();
- * } else if (endCondition == TextFieldOwner.BACKTAB_KEY) {
- * field3.selectText();
- * }
- * </pre>
- */
- public void textEditingDidEnd(TextField textField, int endCondition,
- boolean contentsChanged);
- }
-
-