Struts example source code file (Form.js)

This example Struts source code file (Form.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 - Struts tags/keywords

array, array, checkbox, checkbox, combobox, dropdowndatepicker, dropdowndatepicker, input, not, repeater, repeatercontainer, select, select, textarea

The Struts Form.js source code

/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/



dojo.provide("dojo.widget.Form");
dojo.require("dojo.widget.*");
dojo.require("dojo.widget.HtmlWidget");
dojo.widget.defineWidget("dojo.widget.Form", dojo.widget.HtmlWidget, {isContainer:true, templateString:"<form dojoAttachPoint='containerNode' dojoAttachEvent='onSubmit:onSubmit'>", formElements:[], ignoreNullValues:false, postCreate:function (args, frag) {
	for (var key in args) {
		if (key == "dojotype") {
			continue;
		}
		var attr = document.createAttribute(key);
		attr.nodeValue = args[key];
		this.containerNode.setAttributeNode(attr);
	}
}, _createRepeaters:function (obj, widget) {
	for (var i = 0; i < widget.children.length; ++i) {
		if (widget.children[i].widgetType == "RepeaterContainer") {
			var rIndex = widget.children[i].index;
			var rIndexPos = rIndex.indexOf("%{index}");
			rIndex = rIndex.substr(0, rIndexPos - 1);
			var myObj = this._getObject(obj, rIndex);
			if (typeof (myObj) == "object" && myObj.length == 0) {
				myObj = new Array();
			}
			var rowCount = widget.children[i].getRowCount();
			for (var j = 0, len = rowCount; j < len; ++j) {
				widget.children[i].deleteRow(0);
			}
			for (var j = 0; j < myObj.length; j++) {
				widget.children[i].addRow(false);
			}
		}
		if (widget.children[i].isContainer) {
			this._createRepeaters(obj, widget.children[i]);
		}
	}
}, _createFormElements:function () {
	if (dojo.render.html.safari) {
		this.formElements = [];
		var elems = ["INPUT", "SELECT", "TEXTAREA"];
		for (var k = 0; k < elems.length; k++) {
			var list = this.containerNode.getElementsByTagName(elems[k]);
			for (var j = 0, len2 = list.length; j < len2; j++) {
				this.formElements.push(list[j]);
			}
		}
	} else {
		this.formElements = this.containerNode.elements;
	}
}, onSubmit:function (e) {
	e.preventDefault();
}, submit:function () {
	this.containerNode.submit();
}, _getFormElement:function (name) {
	if (dojo.render.html.ie) {
		for (var i = 0, len = this.formElements.length; i < len; i++) {
			var element = this.formElements[i];
			if (element.name == name) {
				return element;
			}
		}
	} else {
		var elem = this.formElements[name];
		if (typeof (elem) != "undefined") {
			return elem;
		}
	}
	return null;
}, _getObject:function (obj, searchString) {
	var namePath = [];
	namePath = searchString.split(".");
	var myObj = obj;
	var name = namePath[namePath.length - 1];
	for (var j = 0, len = namePath.length; j < len; ++j) {
		var p = namePath[j];
		if (typeof (myObj[p]) == "undefined") {
			myObj[p] = {};
		}
		myObj = myObj[p];
	}
	return myObj;
}, _setToContainers:function (obj, widget) {
	for (var i = 0, len = widget.children.length; i < len; ++i) {
		var currentWidget = widget.children[i];
		if (currentWidget.widgetType == "Repeater") {
			for (var j = 0, len = currentWidget.getRowCount(); j < len; ++j) {
				currentWidget._initRow(j);
			}
		}
		if (currentWidget.isContainer) {
			this._setToContainers(obj, currentWidget);
			continue;
		}
		switch (currentWidget.widgetType) {
		  case "Checkbox":
			currentWidget.setValue(currentWidget.inputNode.checked);
			break;
		  case "DropdownDatePicker":
			currentWidget.setValue(currentWidget.getValue());
			break;
		  case "Select":
			continue;
			break;
		  case "ComboBox":
			continue;
			break;
		  default:
			break;
		}
	}
}, setValues:function (obj) {
	this._createFormElements();
	this._createRepeaters(obj, this);
	for (var i = 0, len = this.formElements.length; i < len; i++) {
		var element = this.formElements[i];
		if (element.name == "") {
			continue;
		}
		var namePath = new Array();
		namePath = element.name.split(".");
		var myObj = obj;
		var name = namePath[namePath.length - 1];
		for (var j = 1, len2 = namePath.length; j < len2; ++j) {
			var p = namePath[j - 1];
			if (typeof (myObj[p]) == "undefined") {
				myObj = undefined;
				break;
			}
			myObj = myObj[p];
		}
		if (typeof (myObj) == "undefined") {
			continue;
		}
		if (typeof (myObj[name]) == "undefined" && this.ignoreNullValues) {
			continue;
		}
		var type = element.type;
		if (type == "hidden" || type == "text" || type == "textarea" || type == "password") {
			type = "text";
		}
		switch (type) {
		  case "checkbox":
			element.checked = false;
			if (typeof (myObj[name]) == "undefined") {
				continue;
			}
			for (var j = 0, len2 = myObj[name].length; j < len2; ++j) {
				if (element.value == myObj[name][j]) {
					element.checked = true;
				}
			}
			break;
		  case "radio":
			element.checked = false;
			if (typeof (myObj[name]) == "undefined") {
				continue;
			}
			if (myObj[name] == element.value) {
				element.checked = true;
			}
			break;
		  case "select-multiple":
			element.selectedIndex = -1;
			for (var j = 0, len2 = element.options.length; j < len2; ++j) {
				for (var k = 0, len3 = myObj[name].length; k < len3; ++k) {
					if (element.options[j].value == myObj[name][k]) {
						element.options[j].selected = true;
					}
				}
			}
			break;
		  case "select-one":
			element.selectedIndex = "0";
			for (var j = 0, len2 = element.options.length; j < len2; ++j) {
				if (element.options[j].value == myObj[name]) {
					element.options[j].selected = true;
				} else {
				}
			}
			break;
		  case "text":
			var value = "";
			if (typeof (myObj[name]) != "undefined") {
				value = myObj[name];
			}
			element.value = value;
			break;
		  default:
			dojo.debug("Not supported type (" + type + ")");
			break;
		}
	}
	this._setToContainers(obj, this);
}, getValues:function () {
	this._createFormElements();
	var obj = {};
	for (var i = 0, len = this.formElements.length; i < len; i++) {
		var elm = this.formElements[i];
		var namePath = [];
		if (elm.name == "") {
			continue;
		}
		namePath = elm.name.split(".");
		var myObj = obj;
		var name = namePath[namePath.length - 1];
		for (var j = 1, len2 = namePath.length; j < len2; ++j) {
			var nameIndex = null;
			var p = namePath[j - 1];
			var nameA = p.split("[");
			if (nameA.length > 1) {
				if (typeof (myObj[nameA[0]]) == "undefined") {
					myObj[nameA[0]] = [];
				}
				nameIndex = parseInt(nameA[1]);
				if (typeof (myObj[nameA[0]][nameIndex]) == "undefined") {
					myObj[nameA[0]][nameIndex] = {};
				}
			} else {
				if (typeof (myObj[nameA[0]]) == "undefined") {
					myObj[nameA[0]] = {};
				}
			}
			if (nameA.length == 1) {
				myObj = myObj[nameA[0]];
			} else {
				myObj = myObj[nameA[0]][nameIndex];
			}
		}
		if ((elm.type != "select-multiple" && elm.type != "checkbox" && elm.type != "radio") || (elm.type == "radio" && elm.checked)) {
			if (name == name.split("[")[0]) {
				myObj[name] = elm.value;
			} else {
			}
		} else {
			if (elm.type == "checkbox" && elm.checked) {
				if (typeof (myObj[name]) == "undefined") {
					myObj[name] = [];
				}
				myObj[name].push(elm.value);
			} else {
				if (elm.type == "select-multiple") {
					if (typeof (myObj[name]) == "undefined") {
						myObj[name] = [];
					}
					for (var jdx = 0, len3 = elm.options.length; jdx < len3; ++jdx) {
						if (elm.options[jdx].selected) {
							myObj[name].push(elm.options[jdx].value);
						}
					}
				}
			}
		}
		name = undefined;
	}
	return obj;
}});