Lift Framework example source code file (jlift.js)

This example Lift Framework source code file (jlift.js) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Lift Framework tags/keywords

array, array

The Lift Framework jlift.js source code

( function() {
	/*
	 * Copyright 2008 WorldWide Conferencing, LLC
	 * 
	 * Licensed under the Apache License, Version 2.0 (the "License"); you may
	 * not use this file except in compliance with the License. You may obtain a
	 * copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless
	 * required by applicable law or agreed to in writing, software distributed
	 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
	 * OR CONDITIONS OF ANY KIND, either express or implied. See the License for
	 * the specific language governing permissions and limitations under the
	 * License.
	 */

	window.lift$ = {
		buildIndex : function(on, indexName) {
			on[indexName] = {};
			var index = on[indexName];
			var x = 0;
			for (x = 2; x < arguments.length; x++) {
				var arg = arguments[x];
				var keyField = arg[1];
				var table = arg[0];
				var ta = on[table];
				var y = 0;
				for (y = 0; y < ta.length; y++) {
					var item = ta[y];
					var id = item[keyField];
					if (id) {
						index[id] = item;
					}
				}
			}
		},

		foreach : function(array, func) {
			var realFunc = func;
			if (func.apply == null) {
				eval("realFunc = function(p1) {return " + func + ";}");
			}

			for ( var x = 0; x < array.length; x++) {
				realFunc(array[x]);
			}
		},

		fold : function(array, initVal, func) {
			var realFunc = func;
			if (func.apply == null) {
				eval("realFunc = function(p1, p2) {return " + func + ";}");
			}
			lift$.foreach(array, function(e) {
				initVal = realFunc(initVal, e);
			});
			return initVal;
		},

		filter : function(array, func) {
			var realFunc = func;
			if (func.apply == null) {
				eval("realFunc = function(p1) {return " + func + ";}");
			}
			var ret = [];
			lift$.foreach(array, function(e) {
				if (realFunc(e)) {
					ret.push(e);
				}
				;
			});
			return ret;
		},

		alt : function(val, func, altVal) {
			if (val == false || val == null) {
				if (altVal.apply)
					return altVal();
				return altVal;
			} else if (lift$.isArray(val)) {
				return lift$.map(val, func);
			} else {
				var realFunc = func;
				if (func.apply == null) {
					eval("realFunc = function(p1) {return " + func + ";}");
				}
				return realFunc(val)
			}
		},

		map : function(array, func) {
			var realFunc = func;
			if (func.apply == null) {
				eval("realFunc = function(p1) {return " + func + ";}");
			}
			var ret = [];
			lift$.foreach(array, function(e) {
				ret.push(realFunc(e));
			});
			return ret;
		},

		flatMap : function(array, func) {
			var realFunc = func;
			if (func.apply == null) {
				eval("realFunc = function(p1) {return " + func + ";}");
			}
			var ret = [];
			lift$.foreach(array, function(e) {
				lift$.foreach(realFunc(e), function(v) {
					ret.push(v);
				});
			});
			return ret;
		},

		sort : function(array) {
			var func = null;
			if (arguments.length > 1) {
				func = arguments[1];
			}
			var realArray = [].concat(array);
			if (func == null) {
				return realArray.sort();
			} else {
				var realFunc = func;
				if (func.apply == null) {
					eval("realFunc = function(p1, p2) {return " + func + ";}");
				}
				return realArray.sort(realFunc);
			}
		},

		take : function(array, num) {
			var ret = [];
			for ( var x = 0; x < array.length && x < num; x++) {
				ret.push(array[x]);
			}

			return ret;
		},

		magicUpdate : function(holder, field, idField, toUpdate) {
			var f = function(array, item) {
				var na = lift$.filter(array, function(i) {
					return i[idField] != item[idField];
				});
				na.push(item);
				return na;
			}

			var ta = holder[field];

			if (lift$.isArray(toUpdate)) {
				lift$.foreach(toUpdate, function(i) {
					ta = f(ta, i);
				});
				holder[field] = ta;
			} else {
				holder[field] = f(ta, toUpdate);
			}

		},

		isArray : function(obj) {
			if (obj.constructor.toString().indexOf("Array") == -1)
				return false;
			else
				return true;
		},

		randomId : function() {
			var ret = "i";

			for ( var x = 0; x < 10; x++) {
				ret = ret + (Math.floor(Math.random() * 1000));
			}

			return ret;
		},

		swappable : function(visible, hidden) {
			if (visible == null) {
				visible = "";
			}

			if (hidden == null) {
				hidden = "";
			}

			if (visible.nodeType == null) {
				visible = document.createTextNode(visible.toString());
			}

			if (visible.nodeType != 1) {
				var tmp = document.createElement("span");
				tmp.appendChild(visible);
				visible = tmp;
			}

			if (hidden.nodeType == null) {
				hidden = document.createTextNode(hidden.toString());
			}

			if (hidden.nodeType != 1) {
				var tmp = document.createElement("span");
				tmp.appendChild(hidden);
				hidden = tmp;
			}

			visible.onclick = function() {
                          jQuery(visible).hide();
                          jQuery(hidden).show();
                          if (jQuery(hidden).is("input"))
                            jQuery(hidden).focus();
                          else
                            jQuery(hidden).find("input")[0].focus();
                          return false;
 			};

			hidden.style.display = "none";

			var onblur = function() {
				jQuery(visible).show();
				jQuery(hidden).hide();
			}

			jQuery(hidden).blur(onblur);
			jQuery(hidden).children().blur(onblur);

			var df = document.createDocumentFragment();
			df.appendChild(visible);
			df.appendChild(hidden);
			return df;
		},

		formToJSON : function(formId) {
			qs = jQuery("#" + formId).serializeArray();
            ret = {};

            for (var i in qs) {
              var obj = qs[i];
              var cur = ret[obj.name];
              if (!cur) {
                ret[obj.name] = obj.value;
              } else if (lift$.isArray(cur)) {
                  cur.push(obj.value);
              } else {
                  ret[obj.name] = [cur, obj.value];
              }
            }
	    return ret;
	   }
	};

})();