<?xml version="1.0" encoding="utf-8"?>
<!--

  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You 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.

-->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:s="library://ns.adobe.com/flex/spark" 
			   xmlns:mx="library://ns.adobe.com/flex/mx" 
			   minWidth="955" minHeight="850"
			   creationComplete="initApp()">
	
	<!-- Exercise 2.03: Using the addEventListener() method -->
	
	<!-- Styles ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
	
	<fx:Style source="Styles.css"/>
	
	<!-- Script ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
	
	<fx:Script>
		<![CDATA[
			
			// import statements ----------------------------------------
			
			import mx.controls.Alert;
			import mx.events.CalendarLayoutChangeEvent;
			
			// variable declarations ------------------------------------
			
			
			// getter/setters -------------------------------------------
			
			
			// helper methods -------------------------------------------
			
			
			// event handlers -------------------------------------------
			//The dateChangeHandler() function is the event handler for the two DateChooser instances.
			private function dateChangeHandler(event:CalendarLayoutChangeEvent):void
			{
				Alert.show('You have selected ' + event.target.selectedDate.toDateString());
				
				if ((event.target.id == "returnDate") && (pickupDate.selectedDate > returnDate.selectedDate)) 
				{
					Alert.show("Pickup date must be scheduled before return date.");
				}
				
				if ((event.target.id == "pickupDate") && (pickupDate.selectedDate > returnDate.selectedDate) && (returnDate.selectedDate != null)) 
				{
					Alert.show("Pickup date must be scheduled before return date.")
				}
				
			}
			
			private function initApp():void
			{
				employeeService.send();
				// Add the event listener using ActionScript instead of inline in the DateChooser instances
				pickupDate.addEventListener(CalendarLayoutChangeEvent.CHANGE, dateChangeHandler);
				returnDate.addEventListener(CalendarLayoutChangeEvent.CHANGE, dateChangeHandler);
			}
			
		]]>
	</fx:Script>
	
	<!-- Declarations ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
	
	<fx:Declarations>

		<s:HTTPService id="employeeService"
					   url="http://adobetes.com/f45iaw100/remoteData/employees.xml"/>
		
	</fx:Declarations>
	
	<!-- UI components ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
	
	<s:Label x="10" y="34" 
			 width="690" height="40" 
			 text="Employee Portal: Vehicle Request Form"
			 styleName="titleHeader"/>
	
	<s:Form x="10" y="70">
		
		<s:FormItem label="Employee:">
			<s:DropDownList id="dropDownList"
							dataProvider="{employeeService.lastResult.employees.employee}"
							labelField="lastName"/>
		</s:FormItem>
		
		<s:FormItem label="Office Phone:">
			<s:TextInput id="phone"
						 text="{dropDownList.selectedItem.phone}"/>
		</s:FormItem>
		
		<s:FormItem label="Mobile Phone:">
			<s:TextInput id="mobilePhone"/>
		</s:FormItem>
		
		<s:FormHeading label="Dates Requested"/>
		
		<!--The two DateChooser instances call the dateChangeHandler() function when the change event is dispatched.-->
		
		<s:FormItem label="Pickup Date:">
			<mx:DateChooser id="pickupDate"/>
		</s:FormItem>
		
		<s:FormItem label="Return Date:">
			<mx:DateChooser id="returnDate"/>
		</s:FormItem>
		
		<s:FormItem>
			<s:Button id="submitButton" 
					  label="Submit Request"/>
		</s:FormItem>
		
	</s:Form>
	
</s:Application>