1 | // script.aculo.us builder.js v1.8.0, Tue Nov 06 15:01:40 +0300 2007
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2 |
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3 | // Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
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4 | //
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5 | // script.aculo.us is freely distributable under the terms of an MIT-style license.
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6 | // For details, see the script.aculo.us web site: http://script.aculo.us/
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7 |
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8 | var Builder = {
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9 | NODEMAP: {
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10 | AREA: 'map',
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11 | CAPTION: 'table',
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12 | COL: 'table',
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13 | COLGROUP: 'table',
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14 | LEGEND: 'fieldset',
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15 | OPTGROUP: 'select',
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16 | OPTION: 'select',
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17 | PARAM: 'object',
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18 | TBODY: 'table',
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19 | TD: 'table',
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20 | TFOOT: 'table',
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21 | TH: 'table',
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22 | THEAD: 'table',
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23 | TR: 'table'
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24 | },
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25 | // note: For Firefox < 1.5, OPTION and OPTGROUP tags are currently broken,
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26 | // due to a Firefox bug
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27 | node: function(elementName) {
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28 | elementName = elementName.toUpperCase();
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29 |
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30 | // try innerHTML approach
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31 | var parentTag = this.NODEMAP[elementName] || 'div';
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32 | var parentElement = document.createElement(parentTag);
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33 | try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
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34 | parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
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35 | } catch(e) {}
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36 | var element = parentElement.firstChild || null;
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37 |
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38 | // see if browser added wrapping tags
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39 | if(element && (element.tagName.toUpperCase() != elementName))
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40 | element = element.getElementsByTagName(elementName)[0];
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41 |
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42 | // fallback to createElement approach
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43 | if(!element) element = document.createElement(elementName);
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44 |
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45 | // abort if nothing could be created
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46 | if(!element) return;
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47 |
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48 | // attributes (or text)
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49 | if(arguments[1])
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50 | if(this._isStringOrNumber(arguments[1]) ||
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51 | (arguments[1] instanceof Array) ||
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52 | arguments[1].tagName) {
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53 | this._children(element, arguments[1]);
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54 | } else {
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55 | var attrs = this._attributes(arguments[1]);
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56 | if(attrs.length) {
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57 | try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
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58 | parentElement.innerHTML = "<" +elementName + " " +
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59 | attrs + "></" + elementName + ">";
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60 | } catch(e) {}
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61 | element = parentElement.firstChild || null;
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62 | // workaround firefox 1.0.X bug
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63 | if(!element) {
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64 | element = document.createElement(elementName);
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65 | for(attr in arguments[1])
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66 | element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
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67 | }
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68 | if(element.tagName.toUpperCase() != elementName)
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69 | element = parentElement.getElementsByTagName(elementName)[0];
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70 | }
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71 | }
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72 |
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73 | // text, or array of children
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74 | if(arguments[2])
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75 | this._children(element, arguments[2]);
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76 |
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77 | return element;
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78 | },
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79 | _text: function(text) {
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80 | return document.createTextNode(text);
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81 | },
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82 |
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83 | ATTR_MAP: {
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84 | 'className': 'class',
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85 | 'htmlFor': 'for'
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86 | },
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87 |
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88 | _attributes: function(attributes) {
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89 | var attrs = [];
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90 | for(attribute in attributes)
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91 | attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) +
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92 | '="' + attributes[attribute].toString().escapeHTML().gsub(/"/,'"') + '"');
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93 | return attrs.join(" ");
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94 | },
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95 | _children: function(element, children) {
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96 | if(children.tagName) {
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97 | element.appendChild(children);
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98 | return;
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99 | }
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100 | if(typeof children=='object') { // array can hold nodes and text
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101 | children.flatten().each( function(e) {
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102 | if(typeof e=='object')
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103 | element.appendChild(e)
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104 | else
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105 | if(Builder._isStringOrNumber(e))
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106 | element.appendChild(Builder._text(e));
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107 | });
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108 | } else
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109 | if(Builder._isStringOrNumber(children))
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110 | element.appendChild(Builder._text(children));
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111 | },
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112 | _isStringOrNumber: function(param) {
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113 | return(typeof param=='string' || typeof param=='number');
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114 | },
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115 | build: function(html) {
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116 | var element = this.node('div');
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117 | $(element).update(html.strip());
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118 | return element.down();
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119 | },
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120 | dump: function(scope) {
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121 | if(typeof scope != 'object' && typeof scope != 'function') scope = window; //global scope
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122 |
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123 | var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " +
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124 | "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " +
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125 | "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX "+
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126 | "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P "+
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127 | "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD "+
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128 | "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);
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129 |
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130 | tags.each( function(tag){
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131 | scope[tag] = function() {
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132 | return Builder.node.apply(Builder, [tag].concat($A(arguments)));
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133 | }
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134 | });
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135 | }
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136 | }
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