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Diffstat (limited to 'library/cropper/lib/builder.js')
-rw-r--r-- | library/cropper/lib/builder.js | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/library/cropper/lib/builder.js b/library/cropper/lib/builder.js new file mode 100644 index 000000000..5b15ba939 --- /dev/null +++ b/library/cropper/lib/builder.js @@ -0,0 +1,101 @@ +// 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'); + } +}
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