Inital commit
This commit is contained in:
Tilman
@@ -0,0 +1,364 @@
|
||||
// $Id: drupal.js,v 1.22.2.4 2006/12/01 14:57:29 killes Exp $
|
||||
|
||||
/**
|
||||
* Only enable Javascript functionality if all required features are supported.
|
||||
*/
|
||||
function isJsEnabled() {
|
||||
if (typeof document.jsEnabled == 'undefined') {
|
||||
// Note: ! casts to boolean implicitly.
|
||||
document.jsEnabled = !(
|
||||
!document.getElementsByTagName ||
|
||||
!document.createElement ||
|
||||
!document.createTextNode ||
|
||||
!document.documentElement ||
|
||||
!document.getElementById);
|
||||
}
|
||||
return document.jsEnabled;
|
||||
}
|
||||
|
||||
// Global Killswitch on the <html> element
|
||||
if (isJsEnabled()) {
|
||||
document.documentElement.className = 'js';
|
||||
}
|
||||
|
||||
/**
|
||||
* Make IE's XMLHTTP object accessible through XMLHttpRequest()
|
||||
*/
|
||||
if (typeof XMLHttpRequest == 'undefined') {
|
||||
XMLHttpRequest = function () {
|
||||
var msxmls = ['MSXML3', 'MSXML2', 'Microsoft']
|
||||
for (var i=0; i < msxmls.length; i++) {
|
||||
try {
|
||||
return new ActiveXObject(msxmls[i]+'.XMLHTTP')
|
||||
}
|
||||
catch (e) { }
|
||||
}
|
||||
throw new Error("No XML component installed!");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates an HTTP GET request and sends the response to the callback function.
|
||||
*
|
||||
* Note that dynamic arguments in the URI should be escaped with encodeURIComponent().
|
||||
*/
|
||||
function HTTPGet(uri, callbackFunction, callbackParameter) {
|
||||
var xmlHttp = new XMLHttpRequest();
|
||||
var bAsync = true;
|
||||
if (!callbackFunction) {
|
||||
bAsync = false;
|
||||
}
|
||||
|
||||
xmlHttp.open('GET', uri, bAsync);
|
||||
xmlHttp.send(null);
|
||||
|
||||
if (bAsync) {
|
||||
xmlHttp.onreadystatechange = function() {
|
||||
if (xmlHttp.readyState == 4) {
|
||||
callbackFunction(xmlHttp.responseText, xmlHttp, callbackParameter);
|
||||
}
|
||||
}
|
||||
return xmlHttp;
|
||||
}
|
||||
else {
|
||||
return xmlHttp.responseText;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates an HTTP POST request and sends the response to the callback function
|
||||
*
|
||||
* Note: passing null or undefined for 'object' makes the request fail in Opera 8.
|
||||
* Pass an empty string instead.
|
||||
*/
|
||||
function HTTPPost(uri, callbackFunction, callbackParameter, object) {
|
||||
var xmlHttp = new XMLHttpRequest();
|
||||
var bAsync = true;
|
||||
if (!callbackFunction) {
|
||||
bAsync = false;
|
||||
}
|
||||
xmlHttp.open('POST', uri, bAsync);
|
||||
|
||||
var toSend = '';
|
||||
if (typeof object == 'object') {
|
||||
xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
|
||||
for (var i in object) {
|
||||
toSend += (toSend ? '&' : '') + i + '=' + encodeURIComponent(object[i]);
|
||||
}
|
||||
}
|
||||
else {
|
||||
toSend = object;
|
||||
}
|
||||
xmlHttp.send(toSend);
|
||||
|
||||
if (bAsync) {
|
||||
xmlHttp.onreadystatechange = function() {
|
||||
if (xmlHttp.readyState == 4) {
|
||||
callbackFunction(xmlHttp.responseText, xmlHttp, callbackParameter);
|
||||
}
|
||||
}
|
||||
return xmlHttp;
|
||||
}
|
||||
else {
|
||||
return xmlHttp.responseText;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Redirects a button's form submission to a hidden iframe and displays the result
|
||||
* in a given wrapper. The iframe should contain a call to
|
||||
* window.parent.iframeHandler() after submission.
|
||||
*/
|
||||
function redirectFormButton(uri, button, handler) {
|
||||
// (Re)create an iframe to target.
|
||||
createIframe();
|
||||
|
||||
// Trap the button
|
||||
button.onmouseover = button.onfocus = function() {
|
||||
button.onclick = function() {
|
||||
// Prepare variables for use in anonymous function.
|
||||
var button = this;
|
||||
var action = button.form.action;
|
||||
var target = button.form.target;
|
||||
|
||||
// Redirect form submission
|
||||
this.form.action = uri;
|
||||
this.form.target = 'redirect-target';
|
||||
|
||||
handler.onsubmit();
|
||||
|
||||
// Set iframe handler for later
|
||||
window.iframeHandler = function () {
|
||||
var iframe = $('redirect-target');
|
||||
// Restore form submission
|
||||
button.form.action = action;
|
||||
button.form.target = target;
|
||||
|
||||
// Get response from iframe body
|
||||
try {
|
||||
response = (iframe.contentWindow || iframe.contentDocument || iframe).document.body.innerHTML;
|
||||
// Firefox 1.0.x hack: Remove (corrupted) control characters
|
||||
response = response.replace(/[\f\n\r\t]/g, ' ');
|
||||
if (window.opera) {
|
||||
// Opera-hack: it returns innerHTML sanitized.
|
||||
response = response.replace(/"/g, '"');
|
||||
}
|
||||
}
|
||||
catch (e) {
|
||||
response = null;
|
||||
}
|
||||
|
||||
$('redirect-target').onload = null;
|
||||
$('redirect-target').src = 'about:blank';
|
||||
|
||||
response = parseJson(response);
|
||||
// Check response code
|
||||
if (response.status == 0) {
|
||||
handler.onerror(response.data);
|
||||
return;
|
||||
}
|
||||
handler.oncomplete(response.data);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
}
|
||||
button.onmouseout = button.onblur = function() {
|
||||
button.onclick = null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds a function to the window onload event
|
||||
*/
|
||||
function addLoadEvent(func) {
|
||||
var oldOnload = window.onload;
|
||||
if (typeof window.onload != 'function') {
|
||||
window.onload = func;
|
||||
}
|
||||
else {
|
||||
window.onload = function() {
|
||||
oldOnload();
|
||||
func();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds a function to a given form's submit event
|
||||
*/
|
||||
function addSubmitEvent(form, func) {
|
||||
var oldSubmit = form.onsubmit;
|
||||
if (typeof oldSubmit != 'function') {
|
||||
form.onsubmit = func;
|
||||
}
|
||||
else {
|
||||
form.onsubmit = function() {
|
||||
return oldSubmit() && func();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieves the absolute position of an element on the screen
|
||||
*/
|
||||
function absolutePosition(el) {
|
||||
var sLeft = 0, sTop = 0;
|
||||
var isDiv = /^div$/i.test(el.tagName);
|
||||
if (isDiv && el.scrollLeft) {
|
||||
sLeft = el.scrollLeft;
|
||||
}
|
||||
if (isDiv && el.scrollTop) {
|
||||
sTop = el.scrollTop;
|
||||
}
|
||||
var r = { x: el.offsetLeft - sLeft, y: el.offsetTop - sTop };
|
||||
if (el.offsetParent) {
|
||||
var tmp = absolutePosition(el.offsetParent);
|
||||
r.x += tmp.x;
|
||||
r.y += tmp.y;
|
||||
}
|
||||
return r;
|
||||
};
|
||||
|
||||
function dimensions(el) {
|
||||
return { width: el.offsetWidth, height: el.offsetHeight };
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns true if an element has a specified class name
|
||||
*/
|
||||
function hasClass(node, className) {
|
||||
if (node.className == className) {
|
||||
return true;
|
||||
}
|
||||
var reg = new RegExp('(^| )'+ className +'($| )')
|
||||
if (reg.test(node.className)) {
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds a class name to an element
|
||||
*/
|
||||
function addClass(node, className) {
|
||||
if (hasClass(node, className)) {
|
||||
return false;
|
||||
}
|
||||
node.className += ' '+ className;
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes a class name from an element
|
||||
*/
|
||||
function removeClass(node, className) {
|
||||
if (!hasClass(node, className)) {
|
||||
return false;
|
||||
}
|
||||
// Replaces words surrounded with whitespace or at a string border with a space. Prevents multiple class names from being glued together.
|
||||
node.className = eregReplace('(^|\\s+)'+ className +'($|\\s+)', ' ', node.className);
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Toggles a class name on or off for an element
|
||||
*/
|
||||
function toggleClass(node, className) {
|
||||
if (!removeClass(node, className) && !addClass(node, className)) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Emulate PHP's ereg_replace function in javascript
|
||||
*/
|
||||
function eregReplace(search, replace, subject) {
|
||||
return subject.replace(new RegExp(search,'g'), replace);
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes an element from the page
|
||||
*/
|
||||
function removeNode(node) {
|
||||
if (typeof node == 'string') {
|
||||
node = $(node);
|
||||
}
|
||||
if (node && node.parentNode) {
|
||||
return node.parentNode.removeChild(node);
|
||||
}
|
||||
else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Prevents an event from propagating.
|
||||
*/
|
||||
function stopEvent(event) {
|
||||
if (event.preventDefault) {
|
||||
event.preventDefault();
|
||||
event.stopPropagation();
|
||||
}
|
||||
else {
|
||||
event.returnValue = false;
|
||||
event.cancelBubble = true;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse a JSON response.
|
||||
*
|
||||
* The result is either the JSON object, or an object with 'status' 0 and 'data' an error message.
|
||||
*/
|
||||
function parseJson(data) {
|
||||
if (data.substring(0,1) != '{') {
|
||||
return { status: 0, data: data.length ? data : 'Unspecified error' };
|
||||
}
|
||||
return eval('(' + data + ');');
|
||||
}
|
||||
|
||||
/**
|
||||
* Create an invisible iframe for form submissions.
|
||||
*/
|
||||
function createIframe() {
|
||||
// Delete any previous iframe
|
||||
deleteIframe();
|
||||
// Note: some browsers require the literal name/id attributes on the tag,
|
||||
// some want them set through JS. We do both.
|
||||
window.iframeHandler = function () {};
|
||||
var div = document.createElement('div');
|
||||
div.id = 'redirect-holder';
|
||||
div.innerHTML = '<iframe name="redirect-target" id="redirect-target" class="redirect" onload="window.iframeHandler();"></iframe>';
|
||||
var iframe = div.firstChild;
|
||||
with (iframe) {
|
||||
name = 'redirect-target';
|
||||
setAttribute('name', 'redirect-target');
|
||||
id = 'redirect-target';
|
||||
}
|
||||
with (iframe.style) {
|
||||
position = 'absolute';
|
||||
height = '1px';
|
||||
width = '1px';
|
||||
visibility = 'hidden';
|
||||
}
|
||||
document.body.appendChild(div);
|
||||
}
|
||||
|
||||
/**
|
||||
* Delete the invisible iframe for form submissions.
|
||||
*/
|
||||
function deleteIframe() {
|
||||
var holder = $('redirect-holder');
|
||||
if (holder != null) {
|
||||
removeNode(holder);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Wrapper around document.getElementById().
|
||||
*/
|
||||
function $(id) {
|
||||
return document.getElementById(id);
|
||||
}
|
||||
Reference in New Issue
Block a user