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/*******************************************************************************
* Copyright (c) 2006, 2010 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
// Utility functions used by multiple jsp pages. This contains most of
// the functions that have different behavior on different browsers
// Constants used in flags, the const keyword is not supported in IE 6 and earlier
// so they are declared as var
var SCROLL_LEFT = 1;
var SCROLL_RIGHT = 2;
var SCROLL_UP = 4;
var SCROLL_DOWN = 8;
var SCROLL_HORIZONTAL = SCROLL_LEFT + SCROLL_RIGHT;
var SCROLL_VERTICAL = SCROLL_UP + SCROLL_DOWN;
var SCROLL_HORIZONTAL_AND_VERTICAL = SCROLL_HORIZONTAL + SCROLL_VERTICAL;
var isInternetExplorer = navigator.userAgent.indexOf('MSIE') != -1;
var isSafari = (navigator.userAgent.indexOf('Safari/') != -1)
|| (navigator.userAgent.indexOf('AppleWebKit/') != -1);
/**
* Scrolls the page to show the specified element
* If the entire element can be show scroll the minimum amount necessary to
* show the entire element.
* If the element is larger than the client area align it at the top or left of the page.
*/
function scrollUntilVisible(node, flags)
{
if (node === null) {
return;
}
var nodeTop = node.offsetTop;
var nodeBottom = nodeTop + node.offsetHeight;
var nodeLeft = node.offsetLeft;
var nodeRight = nodeLeft + node.offsetWidth;
var pageTop = 0;
var pageBottom = 0;
var pageLeft = 0;
var pageRight = 0;
var isScrollLeft = flags & SCROLL_LEFT;
var isScrollRight = flags & SCROLL_RIGHT;
var isScrollUp = flags & SCROLL_UP;
var isScrollDown = flags & SCROLL_DOWN;
if (isInternetExplorer)
{
pageTop = document.body.scrollTop;
pageBottom = pageTop + document.body.clientHeight;
pageLeft = document.body.scrollLeft;
pageRight = document.body.scrollRight;
}
else
{
pageTop = window.pageYOffset;
pageBottom = pageTop + window.innerHeight - node.offsetHeight;
pageLeft = window.pageXOffset;
pageRight = pageLeft + window.innerWidth - node.offsetWidth;
}
var vScroll = 0;
var hScroll = 0;
if (flags & SCROLL_VERTICAL) {
if (nodeTop < pageTop && isScrollUp) {
// Scroll up so node is at the top of the view
vScroll = nodeTop - pageTop;
} else {
if (nodeBottom > pageBottom && isScrollDown) {
vScroll = Math.min(nodeTop - pageTop, nodeBottom - pageBottom);
} else {
vScroll = 0; // already in view
}
}
}
if ((flags & SCROLL_HORIZONTAL ) && isRTL) {
// In RTL mode aligning the right edge is more important than aligning the left
if (nodeRight > pageRight && isScrollRight) {
hScroll = nodeRight - pageRight;
} else {
if (nodeLeft < pageLeft && isScrollLeft) {
hScroll = Math.max(nodeLeft - pageLeft, nodeRight - pageRight);
} else {
hScroll = 0; // already in view
}
}
} else if (flags & SCROLL_HORIZONTAL ) {
if (nodeLeft < pageLeft && isScrollLeft) {
hScroll = nodeLeft - pageLeft;
} else {
if (nodeRight > pageRight && isScrollRight) {
hScroll = Math.min(nodeLeft - pageLeft, nodeRight - pageRight);
} else {
hScroll = 0; // already in view
}
}
}
if (hScroll != 0 || vScroll != 0) {
window.scrollBy(hScroll, vScroll);
}
}
function cancelEventBubble(e) {
if (isInternetExplorer) {
window.event.cancelBubble = true;
}
if (e && e.preventDefault) {
e.preventDefault();
}
}
/**
* Returns the target node of an event
*/
function getEventTarget(e) {
var target;
if (isIE) {
target = window.event.srcElement;
} else {
target = e.target;
}
return target;
}
function getKeycode(e) {
if (isInternetExplorer) {
return window.event.keyCode;
} else {
return e.keyCode;
}
}
function getCookie(name) {
var nameEquals = name + "=";
var cookies = document.cookie.split(";");
for (var i=0;i<cookies.length;++i) {
var cookie = cookies[i];
if (cookie.charAt(0) == ' ') {
cookie = cookie.substring(1, cookie.length);
}
if (cookie.indexOf(nameEquals) == 0) {
return cookie.substring(nameEquals.length, cookie.length);
}
}
return null;
}
function setCookie(name, value) {
var date = new Date();
date.setTime(date.getTime()+(365*24*60*60*1000));
var path = window.location.pathname;
var cookiePath = "/help/";
var slash = path.indexOf('/', 1);
if(slash > 0) {
cookiePath = path.substr(0, slash + 1);
}
document.cookie = name + "=" + value + "; expires=" + date.toGMTString() + ";path=" + cookiePath;
}
function setCSSRule(selector, property, value) {
var theRules = new Array();
for (var i=0;i<document.styleSheets.length;i++) {
if (document.styleSheets[i].cssRules) {
theRules = document.styleSheets[i].cssRules;
}
else {
theRules = document.styleSheets[i].rules;
}
for (var j=theRules.length-1;j>=0;j--) {
if (theRules[j].selectorText == selector) {
theRules[j].style[property] = value;
return;
}
}
}
}
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