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-rw-r--r--cropper/lib/builder.js101
1 files changed, 101 insertions, 0 deletions
diff --git a/cropper/lib/builder.js b/cropper/lib/builder.js
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+// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
+//
+// See scriptaculous.js for full license.
+
+var Builder = {
+ NODEMAP: {
+ AREA: 'map',
+ CAPTION: 'table',
+ COL: 'table',
+ COLGROUP: 'table',
+ LEGEND: 'fieldset',
+ OPTGROUP: 'select',
+ OPTION: 'select',
+ PARAM: 'object',
+ TBODY: 'table',
+ TD: 'table',
+ TFOOT: 'table',
+ TH: 'table',
+ THEAD: 'table',
+ TR: 'table'
+ },
+ // note: For Firefox < 1.5, OPTION and OPTGROUP tags are currently broken,
+ // due to a Firefox bug
+ node: function(elementName) {
+ elementName = elementName.toUpperCase();
+
+ // try innerHTML approach
+ var parentTag = this.NODEMAP[elementName] || 'div';
+ var parentElement = document.createElement(parentTag);
+ try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
+ parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
+ } catch(e) {}
+ var element = parentElement.firstChild || null;
+
+ // see if browser added wrapping tags
+ if(element && (element.tagName != elementName))
+ element = element.getElementsByTagName(elementName)[0];
+
+ // fallback to createElement approach
+ if(!element) element = document.createElement(elementName);
+
+ // abort if nothing could be created
+ if(!element) return;
+
+ // attributes (or text)
+ if(arguments[1])
+ if(this._isStringOrNumber(arguments[1]) ||
+ (arguments[1] instanceof Array)) {
+ this._children(element, arguments[1]);
+ } else {
+ var attrs = this._attributes(arguments[1]);
+ if(attrs.length) {
+ try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
+ parentElement.innerHTML = "<" +elementName + " " +
+ attrs + "></" + elementName + ">";
+ } catch(e) {}
+ element = parentElement.firstChild || null;
+ // workaround firefox 1.0.X bug
+ if(!element) {
+ element = document.createElement(elementName);
+ for(attr in arguments[1])
+ element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
+ }
+ if(element.tagName != elementName)
+ element = parentElement.getElementsByTagName(elementName)[0];
+ }
+ }
+
+ // text, or array of children
+ if(arguments[2])
+ this._children(element, arguments[2]);
+
+ return element;
+ },
+ _text: function(text) {
+ return document.createTextNode(text);
+ },
+ _attributes: function(attributes) {
+ var attrs = [];
+ for(attribute in attributes)
+ attrs.push((attribute=='className' ? 'class' : attribute) +
+ '="' + attributes[attribute].toString().escapeHTML() + '"');
+ return attrs.join(" ");
+ },
+ _children: function(element, children) {
+ if(typeof children=='object') { // array can hold nodes and text
+ children.flatten().each( function(e) {
+ if(typeof e=='object')
+ element.appendChild(e)
+ else
+ if(Builder._isStringOrNumber(e))
+ element.appendChild(Builder._text(e));
+ });
+ } else
+ if(Builder._isStringOrNumber(children))
+ element.appendChild(Builder._text(children));
+ },
+ _isStringOrNumber: function(param) {
+ return(typeof param=='string' || typeof param=='number');
+ }
+} \ No newline at end of file