| // Copyright (C) 2010 The Android Open Source Project |
| // |
| // 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.gerrit.client.ui; |
| |
| import com.google.gwt.event.dom.client.KeyCodes; |
| import com.google.gwt.event.dom.client.KeyDownEvent; |
| import com.google.gwt.event.dom.client.KeyDownHandler; |
| import com.google.gwt.event.dom.client.KeyEvent; |
| import com.google.gwt.event.dom.client.KeyPressEvent; |
| import com.google.gwt.event.dom.client.KeyPressHandler; |
| import com.google.gwtexpui.globalkey.client.NpTextBox; |
| |
| /** Text box that accepts only integer values. */ |
| public class NpIntTextBox extends NpTextBox { |
| private int intValue; |
| |
| public NpIntTextBox() { |
| init(); |
| } |
| |
| private void init() { |
| addKeyDownHandler( |
| new KeyDownHandler() { |
| @Override |
| public void onKeyDown(KeyDownEvent event) { |
| int code = event.getNativeKeyCode(); |
| onKey(event, code, code); |
| } |
| }); |
| addKeyPressHandler( |
| new KeyPressHandler() { |
| @Override |
| public void onKeyPress(KeyPressEvent event) { |
| int charCode = event.getCharCode(); |
| int keyCode = event.getNativeEvent().getKeyCode(); |
| onKey(event, charCode, keyCode); |
| } |
| }); |
| } |
| |
| private void onKey(KeyEvent<?> event, int charCode, int keyCode) { |
| if ('0' <= charCode && charCode <= '9') { |
| if (event.isAnyModifierKeyDown()) { |
| event.preventDefault(); |
| } |
| } else { |
| switch (keyCode) { |
| case KeyCodes.KEY_BACKSPACE: |
| case KeyCodes.KEY_LEFT: |
| case KeyCodes.KEY_RIGHT: |
| case KeyCodes.KEY_HOME: |
| case KeyCodes.KEY_END: |
| case KeyCodes.KEY_TAB: |
| case KeyCodes.KEY_DELETE: |
| break; |
| |
| default: |
| // Allow copy and paste using ctl-c/ctrl-v, |
| // or whatever the platform's convention is. |
| if (!(event.isControlKeyDown() || event.isMetaKeyDown() || event.isAltKeyDown())) { |
| event.preventDefault(); |
| } |
| break; |
| } |
| } |
| } |
| |
| public int getIntValue() { |
| String txt = getText().trim(); |
| if (!txt.isEmpty()) { |
| try { |
| intValue = Integer.parseInt(getText()); |
| } catch (NumberFormatException e) { |
| // Ignored |
| } |
| } |
| return intValue; |
| } |
| |
| public void setIntValue(int v) { |
| intValue = v; |
| setText(Integer.toString(v)); |
| } |
| } |