зеркало из https://github.com/mozilla/pjs.git
101 строка
3.3 KiB
JavaScript
101 строка
3.3 KiB
JavaScript
/* -*- Mode: javascript; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Oracle Corporation code.
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*
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* The Initial Developer of the Original Code is Oracle Corporation
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Stuart Parmenter <stuart.parmenter@oracle.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* utility functions */
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function setElementValue(elementName, value, name)
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{
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var element = document.getElementById(elementName);
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if (!element) {
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dump("unable to find " + elementName + "\n");
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return;
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}
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if (value === false) {
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element.removeAttribute(name ? name : "value");
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} else if (name) {
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//dump("element.setAttribute(" + name + ", " + value + ")\n");
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element.setAttribute(name, value);
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} else {
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//dump("element.value = " + value + "\n");
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element.value = value;
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}
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}
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function getElementValue(elementName, name)
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{
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var element = document.getElementById(elementName);
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if (!element) {
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dump("unable to find " + elementName + "\n");
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return null;
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}
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if (name)
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return element[name];
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return element.value;
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}
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function enableElement(elementId)
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{
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setElementValue(elementId, false, "disabled");
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}
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function disableElement(elementId)
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{
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setElementValue(elementId, "true", "disabled");
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}
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/* use with textfields oninput to only allow integers */
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function validateIntegers(event)
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{
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if (isNaN(Number(event.target.value))) {
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var newValue = parseInt(event.target.value);
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event.target.value = isNaN(newValue) ? "" : newValue;
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event.preventDefault();
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}
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}
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function validateNaturalNums(event) {
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validateIntegers(event);
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var num = event.target.value;
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if (num < 0) {
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event.target.value = -1 * num;
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event.preventDefault();
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}
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}
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