mirror of
http://git.whoc.org.uk/git/password-manager.git
synced 2024-11-01 13:17:17 +01:00
417 lines
17 KiB
JavaScript
417 lines
17 KiB
JavaScript
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/**
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* @class YAHOO.ext.DomHelper
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* Utility class for working with DOM and/or Templates. It transparently supports using HTML fragments or DOM.
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* For more information see <a href="http://www.jackslocum.com/yui/2006/10/06/domhelper-create-elements-using-dom-html-fragments-or-templates/">this blog post with examples</a>.
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* @singleton
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*/
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YAHOO.ext.DomHelper = new function(){
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/**@private*/
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var d = document;
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var tempTableEl = null;
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/** True to force the use of DOM instead of html fragments @type Boolean */
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this.useDom = false;
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var emptyTags = /^(?:base|basefont|br|frame|hr|img|input|isindex|link|meta|nextid|range|spacer|wbr|audioscope|area|param|keygen|col|limittext|spot|tab|over|right|left|choose|atop|of)$/i;
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/**
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* Applies a style specification to an element
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* @param {String/HTMLElement} el The element to apply styles to
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* @param {String/Object/Function} styles A style specification string eg "width:100px", or object in the form {width:"100px"}, or
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* a function which returns such a specification.
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*/
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this.applyStyles = function(el, styles){
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if(styles){
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var D = YAHOO.util.Dom;
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if (typeof styles == "string"){
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var re = /\s?([a-z\-]*)\:([^;]*);?/gi;
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var matches;
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while ((matches = re.exec(styles)) != null){
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D.setStyle(el, matches[1], matches[2]);
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}
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}else if (typeof styles == "object"){
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for (var style in styles){
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D.setStyle(el, style, styles[style]);
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}
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}else if (typeof styles == "function"){
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YAHOO.ext.DomHelper.applyStyles(el, styles.call());
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}
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}
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};
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// build as innerHTML where available
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/** @ignore */
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var createHtml = function(o){
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var b = '';
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b += '<' + o.tag;
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for(var attr in o){
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if(attr == 'tag' || attr == 'children' || attr == 'html' || typeof o[attr] == 'function') continue;
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if(attr == 'style'){
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var s = o['style'];
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if(typeof s == 'function'){
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s = s.call();
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}
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if(typeof s == 'string'){
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b += ' style="' + s + '"';
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}else if(typeof s == 'object'){
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b += ' style="';
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for(var key in s){
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if(typeof s[key] != 'function'){
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b += key + ':' + s[key] + ';';
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}
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}
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b += '"';
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}
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}else{
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if(attr == 'cls'){
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b += ' class="' + o['cls'] + '"';
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}else if(attr == 'htmlFor'){
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b += ' for="' + o['htmlFor'] + '"';
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}else{
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b += ' ' + attr + '="' + o[attr] + '"';
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}
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}
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}
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if(emptyTags.test(o.tag)){
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b += ' />';
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}else{
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b += '>';
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if(o.children){
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for(var i = 0, len = o.children.length; i < len; i++) {
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b += createHtml(o.children[i], b);
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}
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}
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if(o.html){
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b += o.html;
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}
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b += '</' + o.tag + '>';
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}
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return b;
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}
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// build as dom
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/** @ignore */
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var createDom = function(o, parentNode){
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var el = d.createElement(o.tag);
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var useSet = el.setAttribute ? true : false; // In IE some elements don't have setAttribute
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for(var attr in o){
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if(attr == 'tag' || attr == 'children' || attr == 'html' || attr == 'style' || typeof o[attr] == 'function') continue;
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if(attr=='cls'){
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el.className = o['cls'];
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}else{
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if(useSet) el.setAttribute(attr, o[attr]);
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else el[attr] = o[attr];
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}
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}
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YAHOO.ext.DomHelper.applyStyles(el, o.style);
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if(o.children){
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for(var i = 0, len = o.children.length; i < len; i++) {
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createDom(o.children[i], el);
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}
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}
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if(o.html){
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el.innerHTML = o.html;
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}
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if(parentNode){
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parentNode.appendChild(el);
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}
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return el;
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};
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/**
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* @ignore
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* Nasty code for IE's broken table implementation
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*/
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var insertIntoTable = function(tag, where, el, html){
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if(!tempTableEl){
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tempTableEl = document.createElement('div');
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}
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var node;
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if(tag == 'table' || tag == 'tbody'){
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tempTableEl.innerHTML = '<table><tbody>'+html+'</tbody></table>';
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node = tempTableEl.firstChild.firstChild.firstChild;
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}else{
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tempTableEl.innerHTML = '<table><tbody><tr>'+html+'</tr></tbody></table>';
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node = tempTableEl.firstChild.firstChild.firstChild.firstChild;
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}
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if(where == 'beforebegin'){
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el.parentNode.insertBefore(node, el);
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return node;
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}else if(where == 'afterbegin'){
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el.insertBefore(node, el.firstChild);
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return node;
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}else if(where == 'beforeend'){
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el.appendChild(node);
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return node;
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}else if(where == 'afterend'){
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el.parentNode.insertBefore(node, el.nextSibling);
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return node;
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}
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}
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/**
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* Inserts an HTML fragment into the Dom
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* @param {String} where Where to insert the html in relation to el - beforeBegin, afterBegin, beforeEnd, afterEnd.
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* @param {HTMLElement} el The context element
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* @param {String} html The HTML fragmenet
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* @return {HTMLElement} The new node
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*/
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this.insertHtml = function(where, el, html){
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where = where.toLowerCase();
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if(el.insertAdjacentHTML){
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var tag = el.tagName.toLowerCase();
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if(tag == 'table' || tag == 'tbody' || tag == 'tr'){
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return insertIntoTable(tag, where, el, html);
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}
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switch(where){
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case 'beforebegin':
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el.insertAdjacentHTML(where, html);
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return el.previousSibling;
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case 'afterbegin':
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el.insertAdjacentHTML(where, html);
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return el.firstChild;
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case 'beforeend':
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el.insertAdjacentHTML(where, html);
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return el.lastChild;
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case 'afterend':
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el.insertAdjacentHTML(where, html);
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return el.nextSibling;
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}
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throw 'Illegal insertion point -> "' + where + '"';
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}
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var range = el.ownerDocument.createRange();
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var frag;
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switch(where){
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case 'beforebegin':
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range.setStartBefore(el);
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frag = range.createContextualFragment(html);
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el.parentNode.insertBefore(frag, el);
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return el.previousSibling;
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case 'afterbegin':
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if(el.firstChild){ // faster
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range.setStartBefore(el.firstChild);
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}else{
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range.selectNodeContents(el);
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range.collapse(true);
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}
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frag = range.createContextualFragment(html);
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el.insertBefore(frag, el.firstChild);
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return el.firstChild;
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case 'beforeend':
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if(el.lastChild){
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range.setStartAfter(el.lastChild); // faster
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}else{
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range.selectNodeContents(el);
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range.collapse(false);
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}
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frag = range.createContextualFragment(html);
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el.appendChild(frag);
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return el.lastChild;
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case 'afterend':
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range.setStartAfter(el);
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frag = range.createContextualFragment(html);
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el.parentNode.insertBefore(frag, el.nextSibling);
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return el.nextSibling;
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}
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throw 'Illegal insertion point -> "' + where + '"';
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};
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/**
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* Creates new Dom element(s) and inserts them before el
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* @param {String/HTMLElement/Element} el The context element
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* @param {Object} o The Dom object spec (and children)
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* @param {<i>Boolean</i>} returnElement (optional) true to return a YAHOO.ext.Element
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* @return {HTMLElement} The new node
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*/
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this.insertBefore = function(el, o, returnElement){
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el = el.dom ? el.dom : YAHOO.util.Dom.get(el);
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var newNode;
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if(this.useDom){
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newNode = createDom(o, null);
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el.parentNode.insertBefore(newNode, el);
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}else{
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var html = createHtml(o);
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newNode = this.insertHtml('beforeBegin', el, html);
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}
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return returnElement ? YAHOO.ext.Element.get(newNode, true) : newNode;
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};
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/**
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* Creates new Dom element(s) and inserts them after el
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* @param {String/HTMLElement/Element} el The context element
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* @param {Object} o The Dom object spec (and children)
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* @param {<i>Boolean</i>} returnElement (optional) true to return a YAHOO.ext.Element
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* @return {HTMLElement} The new node
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*/
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this.insertAfter = function(el, o, returnElement){
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el = el.dom ? el.dom : YAHOO.util.Dom.get(el);
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var newNode;
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if(this.useDom){
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newNode = createDom(o, null);
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el.parentNode.insertBefore(newNode, el.nextSibling);
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}else{
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var html = createHtml(o);
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newNode = this.insertHtml('afterEnd', el, html);
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}
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return returnElement ? YAHOO.ext.Element.get(newNode, true) : newNode;
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};
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/**
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* Creates new Dom element(s) and appends them to el
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* @param {String/HTMLElement/Element} el The context element
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* @param {Object} o The Dom object spec (and children)
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* @param {<i>Boolean</i>} returnElement (optional) true to return a YAHOO.ext.Element
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* @return {HTMLElement} The new node
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*/
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this.append = function(el, o, returnElement){
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el = el.dom ? el.dom : YAHOO.util.Dom.get(el);
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var newNode;
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if(this.useDom){
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newNode = createDom(o, null);
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el.appendChild(newNode);
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}else{
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var html = createHtml(o);
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newNode = this.insertHtml('beforeEnd', el, html);
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}
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return returnElement ? YAHOO.ext.Element.get(newNode, true) : newNode;
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};
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/**
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* Creates new Dom element(s) and overwrites the contents of el with them
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* @param {String/HTMLElement/Element} el The context element
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* @param {Object} o The Dom object spec (and children)
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* @param {<i>Boolean</i>} returnElement (optional) true to return a YAHOO.ext.Element
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* @return {HTMLElement} The new node
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*/
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this.overwrite = function(el, o, returnElement){
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el = el.dom ? el.dom : YAHOO.util.Dom.get(el);
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el.innerHTML = createHtml(o);
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return returnElement ? YAHOO.ext.Element.get(el.firstChild, true) : el.firstChild;
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};
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/**
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* Creates a new YAHOO.ext.DomHelper.Template from the Dom object spec
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* @param {Object} o The Dom object spec (and children)
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* @return {YAHOO.ext.DomHelper.Template} The new template
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*/
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this.createTemplate = function(o){
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var html = createHtml(o);
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return new YAHOO.ext.DomHelper.Template(html);
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};
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}();
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/**
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* @class YAHOO.ext.DomHelper.Template
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* Represents an HTML fragment template.
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* For more information see <a href="http://www.jackslocum.com/yui/2006/10/06/domhelper-create-elements-using-dom-html-fragments-or-templates/">this blog post with examples</a>.
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* <br>
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* <b>This class is also available as YAHOO.ext.Template</b>.
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* @constructor
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* @param {String/Array} html The HTML fragment or an array of fragments to join('') or multiple arguments to join('')
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*/
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YAHOO.ext.DomHelper.Template = function(html){
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if(html instanceof Array){
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html = html.join('');
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}else if(arguments.length > 1){
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html = Array.prototype.join.call(arguments, '');
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}
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/**@private*/
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this.html = html;
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};
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YAHOO.ext.DomHelper.Template.prototype = {
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/**
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* Returns an HTML fragment of this template with the specified values applied
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* @param {Object} values The template values. Can be an array if your params are numeric (i.e. {0}) or an object (i.e. {foo: 'bar'})
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* @return {String}
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*/
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applyTemplate : function(values){
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if(this.compiled){
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return this.compiled(values);
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}
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var empty = '';
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var fn = function(match, index){
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if(typeof values[index] != 'undefined'){
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return values[index];
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}else{
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return empty;
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}
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}
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return this.html.replace(this.re, fn);
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},
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/**
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* The regular expression used to match template variables
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* @type RegExp
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* @property
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*/
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re : /\{([\w|-]+)\}/g,
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/**
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* Compiles the template into an internal function, eliminating the RegEx overhead
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*/
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compile : function(){
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var body = ["this.compiled = function(values){ return ['"];
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body.push(this.html.replace(this.re, "', values['$1'], '"));
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body.push("'].join('');};");
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eval(body.join(''));
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return this;
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},
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/**
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|
|
* Applies the supplied values to the template and inserts the new node(s) before el
|
||
|
|
* @param {String/HTMLElement/Element} el The context element
|
||
|
|
* @param {Object} values The template values. Can be an array if your params are numeric (i.e. {0}) or an object (i.e. {foo: 'bar'})
|
||
|
|
* @param {<i>Boolean</i>} returnElement (optional) true to return a YAHOO.ext.Element
|
||
|
|
* @return {HTMLElement} The new node
|
||
|
|
*/
|
||
|
|
insertBefore: function(el, values, returnElement){
|
||
|
|
el = el.dom ? el.dom : YAHOO.util.Dom.get(el);
|
||
|
|
var newNode = YAHOO.ext.DomHelper.insertHtml('beforeBegin', el, this.applyTemplate(values));
|
||
|
|
return returnElement ? YAHOO.ext.Element.get(newNode, true) : newNode;
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Applies the supplied values to the template and inserts the new node(s) after el
|
||
|
|
* @param {String/HTMLElement/Element} el The context element
|
||
|
|
* @param {Object} values The template values. Can be an array if your params are numeric (i.e. {0}) or an object (i.e. {foo: 'bar'})
|
||
|
|
* @param {<i>Boolean</i>} returnElement (optional) true to return a YAHOO.ext.Element
|
||
|
|
* @return {HTMLElement} The new node
|
||
|
|
*/
|
||
|
|
insertAfter : function(el, values, returnElement){
|
||
|
|
el = el.dom ? el.dom : YAHOO.util.Dom.get(el);
|
||
|
|
var newNode = YAHOO.ext.DomHelper.insertHtml('afterEnd', el, this.applyTemplate(values));
|
||
|
|
return returnElement ? YAHOO.ext.Element.get(newNode, true) : newNode;
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Applies the supplied values to the template and append the new node(s) to el
|
||
|
|
* @param {String/HTMLElement/Element} el The context element
|
||
|
|
* @param {Object} values The template values. Can be an array if your params are numeric (i.e. {0}) or an object (i.e. {foo: 'bar'})
|
||
|
|
* @param {<i>Boolean</i>} returnElement (optional) true to return a YAHOO.ext.Element
|
||
|
|
* @return {HTMLElement} The new node
|
||
|
|
*/
|
||
|
|
append : function(el, values, returnElement){
|
||
|
|
el = el.dom ? el.dom : YAHOO.util.Dom.get(el);
|
||
|
|
var newNode = YAHOO.ext.DomHelper.insertHtml('beforeEnd', el, this.applyTemplate(values));
|
||
|
|
return returnElement ? YAHOO.ext.Element.get(newNode, true) : newNode;
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Applies the supplied values to the template and overwrites the content of el with the new node(s)
|
||
|
|
* @param {String/HTMLElement/Element} el The context element
|
||
|
|
* @param {Object} values The template values. Can be an array if your params are numeric (i.e. {0}) or an object (i.e. {foo: 'bar'})
|
||
|
|
* @param {<i>Boolean</i>} returnElement (optional) true to return a YAHOO.ext.Element
|
||
|
|
* @return {HTMLElement} The new node
|
||
|
|
*/
|
||
|
|
overwrite : function(el, values, returnElement){
|
||
|
|
el = el.dom ? el.dom : YAHOO.util.Dom.get(el);
|
||
|
|
el.innerHTML = '';
|
||
|
|
var newNode = YAHOO.ext.DomHelper.insertHtml('beforeEnd', el, this.applyTemplate(values));
|
||
|
|
return returnElement ? YAHOO.ext.Element.get(newNode, true) : newNode;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Alias for applyTemplate
|
||
|
|
* @method
|
||
|
|
*/
|
||
|
|
YAHOO.ext.DomHelper.Template.prototype.apply = YAHOO.ext.DomHelper.Template.prototype.applyTemplate;
|
||
|
|
|
||
|
|
YAHOO.ext.Template = YAHOO.ext.DomHelper.Template;
|