Actualización

plugin/mindmap/edit-mindmap/vendor/js/kampfer/ajax.js

@@ -0,0 +1,132 @@
+kampfer.provide('ajax');
+
+/**
+ * @Author l.w.kampfer@gmail.com
+ * @Name AJAX工具函数
+ * @Version 1.0
+ */
+
+(function( window, kampfer ) {
+	//XHR构造函数
+	var _XHRFactories = [
+		function() { return new XMLHttpRequest(); },
+		function() { return new window.ActiveXObject('Microsoft.XMLHTTP'); }
+	];
+	
+	//默认设置
+	var _defaultSettings = {
+		url : '',
+		method : 'GET',
+	    async : true,
+		parameters : {},
+		timeout : 10000,
+		ontimeout : function() {},
+		onerror : function() {},
+		onsuccess : function() {},
+		onbeforesend : function() {},
+		context : null,
+		headers : {}
+	};
+	
+	var responceTypes = {
+		xml : /xml/,
+		json : /json/,
+		//html : /html/,
+		javascript : /javascript/
+	};
+	
+	//将对象序列化为字符串
+	function _encodeFormData( data ) {
+		var pairs = [],
+			regSpace = /%20/g;
+		for( var name in data ) {
+			var value = data[name].toString();
+			//使用encodeURIComponent对名值对进行编码
+			var pair = encodeURIComponent( name ).replace( regSpace, '+' ) + '=' +
+				encodeURIComponent( value ).replace( regSpace, '+' );
+			pairs.push( pair );
+		}
+		return pairs.join( '&' );
+	}
+	
+	//区别对待返回类型
+	function _getResponse( request ) {
+		var contentType = request.getResponseHeader('Content-Type');
+		if( responceTypes.xml.test( contentType ) ) {
+			return request.responseXML; 
+		}else if( responceTypes.json.test( contentType ) || responceTypes.javascript.test( contentType ) ) {
+			return eval( '(' + request.responseText + ')' );
+		}else{
+			return request.responseText;
+		}
+	}
+	
+	//创建新的XMLHttpRequest对象
+	function _createNewXHR() {
+		for( var i = 0, l = _XHRFactories.length; i < l; i++ ) {
+			try {
+				_XHRFactories[i]();
+				_createNewXHR = _XHRFactories[i];
+				break;
+			} catch( e ) {
+				//consle.log( ' XHR not supported' );
+			}
+		}
+		return _createNewXHR();
+	}
+	
+	var ajax = function( options ) {
+		var newXHR = _createNewXHR(), 
+			timer,
+			url,
+			parameters;
+		options = kampfer.extend( {}, _defaultSettings, options );
+		//设置执行上下文
+		if( !options.context ) {
+			options.context = newXHR;
+		}
+		if( options.ontimeout ) {
+			//闭包
+			timer = setTimeout( function(){
+				newXHR.abort();
+				if ( options.ontimeout ) {
+					options.ontimeout.call( options.context, options );
+				}
+			}, options.timeout );
+		}
+		newXHR.onreadystatechange = function() {
+			if( newXHR.readyState === 4 ) {
+				if( timer ) {
+					clearTimeout( timer );
+				}
+				if( newXHR.status === 200 ) {
+					options.onsuccess.call( options.context, _getResponse( newXHR ) );
+				} else {
+					if( options.onerror ) {
+						options.onerror.call( options.context, newXHR );
+					}
+				}
+			}
+		};
+		url = options.url;
+		parameters = options.parameters && _encodeFormData( options.parameters );
+		if( options.method.toUpperCase() === 'GET' ) {
+			if( options.parameters ) {
+				url += '?' + parameters + '&_=' + ( +new Date() );
+			}
+			newXHR.open( 'GET', url, options.async );
+			options.onbeforesend && options.onbeforesend.call( options.context, newXHR );
+			newXHR.send( null );
+		} else if( options.method.toUpperCase() === 'POST' ) {
+			newXHR.open( 'POST', url, options.async );
+			options.onbeforesend && options.onbeforesend.call( options.context, newXHR );
+			newXHR.setRequestHeader( 'Content-type', 'application/x-www-form-urlencoded' );
+			newXHR.send( parameters );
+		}
+	};
+	
+	kampfer.extend( kampfer, {
+		ajax : ajax 
+	});
+	
+})( window, kampfer );