| /* |
| * Copyright 2006 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.user.client.ui; |
| |
| /** |
| * A class that implements this interface receives a preview of keyboard events |
| * before they are passed to the focused widget. |
| * |
| * @see com.google.gwt.event.dom.client.KeyCodeEvent |
| * @deprecated This interface is no longer implemented by any GWT library. Use |
| * {@link com.google.gwt.user.client.Event#addNativePreviewHandler} |
| * instead. |
| */ |
| @Deprecated |
| public interface HasKeyPreview { |
| |
| /** |
| * Called when a key-down event is received. |
| * |
| * @param key the physical key that was depressed. Constants for this value |
| * are defined in this interface with the KEYCODE prefix. |
| * @param modifiers the modifier keys pressed at when the event occurred. This |
| * value is a combination of the bits defined by |
| * {@link com.google.gwt.user.client.ui.KeyboardListener#MODIFIER_SHIFT}, |
| * {@link com.google.gwt.user.client.ui.KeyboardListener#MODIFIER_CTRL}, |
| * and |
| * {@link com.google.gwt.user.client.ui.KeyboardListener#MODIFIER_ALT}. |
| */ |
| boolean onKeyDownPreview(char key, int modifiers); |
| |
| /** |
| * Called when a key-press event is received. |
| * |
| * @param key the Unicode character that was generated by the keyboard action. |
| * @param modifiers the modifier keys pressed at when the event occurred. This |
| * value is a combination of the bits defined by |
| * {@link com.google.gwt.user.client.ui.KeyboardListener#MODIFIER_SHIFT}, |
| * {@link com.google.gwt.user.client.ui.KeyboardListener#MODIFIER_CTRL}, |
| * and |
| * {@link com.google.gwt.user.client.ui.KeyboardListener#MODIFIER_ALT}. |
| */ |
| boolean onKeyPressPreview(char key, int modifiers); |
| |
| /** |
| * Called when a key-up event is received. |
| * |
| * @param key the physical key that was released. Constants for this value are |
| * defined in this interface with the KEYCODE prefix. |
| * @param modifiers the modifier keys pressed at when the event occurred. This |
| * value is a combination of the bits defined by |
| * {@link com.google.gwt.user.client.ui.KeyboardListener#MODIFIER_SHIFT}, |
| * {@link com.google.gwt.user.client.ui.KeyboardListener#MODIFIER_CTRL}, |
| * and |
| * {@link com.google.gwt.user.client.ui.KeyboardListener#MODIFIER_ALT}. |
| */ |
| boolean onKeyUpPreview(char key, int modifiers); |
| } |