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Changed InputAssistEvent event type name from SELECT to CHANGE
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Added 'prompt' value

Added 'noLookupOptionsMessage" property to display an message when there is no lookup options available

Always disable InputAssist input field when there is no lookup options available
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JabbyPanda committed Oct 13, 2010
1 parent ed0234a commit 6ed431d
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Showing 2 changed files with 103 additions and 50 deletions.
151 changes: 102 additions & 49 deletions src/com/jabbypanda/controls/InputAssist.as
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Expand Up @@ -4,22 +4,19 @@ package com.jabbypanda.controls {
import com.jabbypanda.event.HighlightItemListEvent;
import com.jabbypanda.event.InputAssistEvent;

import flash.display.DisplayObject;
import flash.display.DisplayObjectContainer;
import flash.display.InteractiveObject;
import flash.events.Event;
import flash.events.FocusEvent;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;

import mx.collections.ArrayCollection;
import mx.core.ContainerGlobals;
import mx.core.FlexGlobals;
import mx.core.UIComponent;
import mx.core.mx_internal;
import mx.events.FlexEvent;
import mx.events.FlexMouseEvent;
import mx.managers.FocusManager;
import mx.managers.IFocusManagerComponent;
import mx.managers.SystemManager;
import mx.styles.CSSStyleDeclaration;
import mx.styles.StyleProxy;
Expand All @@ -44,7 +41,7 @@ package com.jabbypanda.controls {
*/
[Style(name="highlightBackgroundColor", type="uint", format="Color", inherit="yes", theme="spark")]

[Event (name="select", type="com.jabbypanda.event.InputAssistEvent")]
[Event (name="change", type="com.jabbypanda.event.InputAssistEvent")]
public class InputAssist extends SkinnableComponent {

[Bindable]
Expand All @@ -56,7 +53,9 @@ package com.jabbypanda.controls {
public var forceOpen : Boolean = true;

public var requireSelection : Boolean = false;


public var noLookupOptionsMessage : String = "No available options";

[SkinPart(required="true",type="spark.components.PopUpAnchor")]
public var popUp : PopUpAnchor;

Expand Down Expand Up @@ -149,31 +148,47 @@ package com.jabbypanda.controls {

public function set selectedItem(item : Object) : void {
_selectedItem = item;
_previouslyEnteredText = enteredText = returnFunction(_selectedItem);
_previouslyEnteredText = enteredText = getSelectedItemDisplayLabel(_selectedItem);

_selectedItemChanged = true;
invalidateProperties();
}
}

public function set prompt(value : String) : void {
_prompt = value;
_promptChanged = true;

// enable control when setting prompt
enabled = true;
invalidateProperties();
}

public function get prompt() : String {
return _prompt;
}

// filter function
// default filter function
public function filterFunction(item : Object) : Boolean {
var itemLabel : String = itemToLabel(item).toLowerCase();
// prefix search mode
if (searchMode == SearchModes.PREFIX_SEARCH) {
if (itemLabel.substr(0, enteredText.length) == enteredText.toLowerCase()) {
return true;
}
else {
return false;
}
}
// infix search mode
else {
if (itemLabel.search(enteredText.toLowerCase()) != -1) {
return true;
}
}
return false;
var itemLabel : String = itemToLabel(item).toLowerCase();

switch (searchMode) {
case SearchModes.PREFIX_SEARCH :
if (itemLabel.substr(0, enteredText.length) == enteredText.toLowerCase()) {
return true;
}
else {
return false;
}
break;
case SearchModes.INFIX_SEARCH :

if (itemLabel.search(enteredText.toLowerCase()) != -1) {
return true;
}
break;
}

return false;
}

public function itemToLabel(item : Object) : String {
Expand All @@ -182,28 +197,24 @@ package com.jabbypanda.controls {

override public function set enabled(value:Boolean) : void {
super.enabled = value;
_enabledChanged = true;
invalidateProperties();
}

override public function setFocus() : void {
if (inputTxt) {
inputTxt.enabled = value;
inputTxt.setFocus();
}
}

override protected function commitProperties():void {
if (_dataProviderChanged) {
_dataProviderChanged = false;
list.dataProvider = _collection;
}

if (_selectedItemChanged) {
var selectedIndex : int = _collection.getItemIndex(selectedItem);
list.selectedIndex = _collection.getItemIndex(selectedItem);
_selectedItemChanged = false;
override protected function isOurFocus(target : DisplayObject) : Boolean {
if (!inputTxt) {
return false;
}

// Should be last statement.
// Don't move it up.
super.commitProperties();
return target == inputTxt.textDisplay || super.isOurFocus(target);
}

override protected function partAdded(partName : String, instance : Object) : void {
super.partAdded(partName, instance)

Expand All @@ -227,13 +238,45 @@ package com.jabbypanda.controls {
list.addEventListener(HighlightItemListEvent.ITEM_CLICK, onListItemClick);
}
}

override public function setFocus() : void {
if (inputTxt) {
inputTxt.setFocus();

override protected function commitProperties():void {
if (_dataProviderChanged) {

if (!dataProvider || dataProvider.length == 0) {
enabled = false;
enteredText = noLookupOptionsMessage;
} else {
enabled = true;
enteredText = getSelectedItemDisplayLabel(_selectedItem as Object);
}

list.dataProvider = _collection;
_dataProviderChanged = false;
}

if (_selectedItemChanged) {
var selectedIndex : int = _collection.getItemIndex(selectedItem);
list.selectedIndex = _collection.getItemIndex(selectedItem);
_selectedItemChanged = false;
}

if (_promptChanged) {
_promptChanged = false;
if (_prompt) {
enteredText = _prompt;
}
}

if (_enabledChanged) {
inputTxt.enabled = enabled;
_enabledChanged = false;
}

// Should be last statement.
// Don't move it up.
super.commitProperties();
}

protected function set enteredText(t : String) : void {
_enteredText = t;
if (inputTxt) {
Expand Down Expand Up @@ -261,7 +304,7 @@ package com.jabbypanda.controls {
restoreEnteredTextAndHidePopUp(!_completionAccepted);
}

var e:InputAssistEvent = new InputAssistEvent(InputAssistEvent.SELECT, _selectedItem);
var e:InputAssistEvent = new InputAssistEvent(InputAssistEvent.CHANGE, _selectedItem);
dispatchEvent(e);
}

Expand All @@ -278,9 +321,13 @@ package com.jabbypanda.controls {
}
}

private function returnFunction(item : Object) : String {
private function getSelectedItemDisplayLabel(item : Object) : String {
if (item == null) {
return "";
if (prompt) {
return prompt;
} else {
return "";
}
}

if (labelField) {
Expand Down Expand Up @@ -417,6 +464,12 @@ package com.jabbypanda.controls {
private var _selectedItem : Object;

private var _selectedItemChanged : Boolean;

private var _prompt : String;

private var _promptChanged : Boolean;

private var _enabledChanged : Boolean;

}

Expand Down
2 changes: 1 addition & 1 deletion src/com/jabbypanda/event/InputAssistEvent.as
View file
Expand Up @@ -7,7 +7,7 @@ package com.jabbypanda.event {
*/
public class InputAssistEvent extends Event {

public static const SELECT : String = "select";
public static const CHANGE : String = "change";

public var data:Object;

Expand Down

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