docx4js/parser/tool-browser.js

javascript docx parser

/**
 *  some utils
 */
define(['apromise','extend'], function(Deferred,Extend){
	var $=window.$={
		Deferred:Deferred,
		parseXML: (DOMParser ? function(x){
				return ( new DOMParser() ).parseFromString(x, "text/xml");
			} : function(x) {
				var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
				xmlDoc.async = "false";
				xmlDoc.loadXML(x);
				return xmlDoc;
			}),
		extend: Extend,
		isFunction: function(a){
			return typeof a ==='function'
		},
		isArray: function(a){
			return Array.isArray(a)
		},
		each: function(a,f,ctx){
			if(Array.isArray(a)){
				a.forEach(f,ctx)
			}else if(typeof a ==='object'){
				Object.keys(a).forEach(function(k){
					f.call(ctx,k,a[k])
				})
			}
		},
		map: function(a,f,ctx){
			return a.map(f,ctx)
		}
	};
		
	$.extend($,{
		toArray: function(args){
			var a=[];
			for(var i=0,len=args.length;i<len;i++)
				a.push(args[i])
			return a
		},
		newClass: function (constructor, properties, classProperties) {
			if(!$.isFunction(constructor)){
				classProperties=properties
				properties=constructor
				constructor=function(){}
			}
			$.extend(constructor.prototype, properties||{})
			classProperties && $.extend(constructor, classProperties)
			constructor.extend=extend
			return constructor;
		}
	})
	function extend(constructor, properties, classProperties){
		var me=this
		if(!$.isFunction(constructor)){
			classProperties=properties
			properties=constructor
			constructor=function(){
				me.apply(this,arguments)
			}
		}
		$.extend(constructor.prototype, me.prototype, properties||{})
		$.extend(constructor, me, classProperties||{})
		return constructor
	}

	var scopable=true, directChildSelector=/((^|,)\s*>)/, id="sxxx"
	try{
		document.body.querySelector(':scope>div')
	}catch(e){
		scopable=false
	}
	
	$.extend(Node.prototype,{
		$: function(selector){
			if(!directChildSelector.test(selector))
				return this.querySelectorAll(selector)
			else if(scopable)
				return this.querySelectorAll(selector.split(',').map(function(a){
						return a.trim().charAt(0)=='>' ? ':scope'+a : a
					}).join(','))
			else if(this.id){
				return this.querySelectorAll(selector.split(',').map(function(a){
						//return  '#'+this.id+((a=a.trim()).charAt(0)=='>' ? '' : ' ')+a
						return (a=a.trim()).charAt(0)=='>' ? a.substring(1) : a
					},this).join(',')) 
			}else{
				this.id=id
				var nodes=this.querySelectorAll(selector.split(',').map(function(a){
						//IE can't find '#xx', @todo: fix it later
						//return  '#'+this.id+((a=a.trim()).charAt(0)=='>' ? '' : ' ')+a
						return (a=a.trim()).charAt(0)=='>' ? a.substring(1) : a
					},this).join(','))
				delete this.id
				return nodes
			}
		},
		$1:function(selector){
			if(!directChildSelector.test(selector))
				return this.querySelector(selector)
			else if(scopable)
				return this.querySelector(selector.split(',').map(function(a){
						return (a=a.trim()).charAt(0)=='>' ? ':scope'+a : a
					}).join(','))
			else if(this.id){
				return this.querySelector(selector.split(',').map(function(a){
						//return  '#'+this.id+((a=a.trim()).charAt(0)=='>' ? '' : ' ')+a
						return (a=a.trim()).charAt(0)=='>' ? a.substring(1) : a
					},this).join(',')) 
			}else{
				this.id=id
				var nodes=this.querySelector(selector.split(',').map(function(a){
						//return  '#'+this.id+((a=a.trim()).charAt(0)=='>' ? '' : ' ')+a
						return (a=a.trim()).charAt(0)=='>' ? a.substring(1) : a
					},this).join(','))
				delete this.id
				return nodes
			}
		},
		attr: function(name, value){
			if(arguments.length==1){
				var attr=this.attributes.getNamedItem(name)
				return attr ? attr.value : undefined
			}else if(value==null)
				this.removeAttribute(name)
			else
				this.setAttribute(name,value)
		},
		remove: Node.prototype.remove || function(){
			this.parentNode.removeChild(this)
		},
		uptrim: function(){
			var parent=this.parentNode
			this.remove()
			if(parent.childNodes.length==0)
				parent.uptrim()
		}
	})
	
	$.extend(NodeList.prototype,{
		asArray: function(o){
			o=o||[]
			for(var i=0,len=this.length;i<len;i++)
				o.push(this[i])
			return o
		}
	})

	return $
});