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https://issues.apache.org/jira/browse/FLEX-33685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
david bel updated FLEX-33685:
-----------------------------
Fix Version/s: Apache Flex 4.10.0
> Using keyboard selection in combobox ignores custom text
> --------------------------------------------------------
>
> Key: FLEX-33685
> URL: https://issues.apache.org/jira/browse/FLEX-33685
> Project: Apache Flex
> Issue Type: Bug
> Components: Spark: ComboBox
> Affects Versions: Apache Flex 4.9.0, Apache Flex 4.10.0
> Environment: Windows 7, Intel i5, 4GB RAM
> Reporter: david bel
> Fix For: Apache Flex 4.10.0
>
>
> When using keyboard navigation and selection the spark ComboBox control
> ignores custom text entered by the user.
> Steps to reproduce:
> Compile and run the following simple application:
> <?xml version="1.0" encoding="utf-8"?>
> <s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009";
> xmlns:s="library://ns.adobe.com/flex/spark"
> xmlns:mx="library://ns.adobe.com/flex/mx">
> <s:Group>
> <s:layout><s:HorizontalLayout /></s:layout>
> <s:ComboBox id="myCombo" width="200" >
> <s:dataProvider>
> <mx:ArrayList>
> <fx:String>test1</fx:String>
> <fx:String>test2</fx:String>
> <fx:String>test3</fx:String>
> </mx:ArrayList>
> </s:dataProvider>
> </s:ComboBox>
> <s:TextInput id="myText" width="200" />
> </s:Group>
> </s:WindowedApplication>
> Click in the combo box and type "abc"
> Press shift + home
> Actual: The selected text is "test1"
> Expected: The selected text should be "abc"
> I wrote a quick patch for this:
> public class TestComboOverride extends ComboBox
> {
> public function TestComboOverride()
> {
> super();
> }
> override mx_internal function
> keyDownHandlerHelper(event:KeyboardEvent):void
> {
> if ((event.keyCode == Keyboard.LEFT) || (event.keyCode
> == Keyboard.RIGHT)
> || (event.keyCode == Keyboard.HOME) ||
> (event.keyCode == Keyboard.END))
> {
> _proposedSelectedIndex = CUSTOM_SELECTED_ITEM;
> }
> super.keyDownHandlerHelper(event);
> }
> }
> The problem appears to be that the _proposedSelectedIndex property remains
> set to -2 [NO_PROPOSED_SELECTION] while entering the text, where it really
> should have been -3 [CUSTOM_SELECTED_ITEM] unless the user happened to type a
> label from the data provider in which case it should have the index of that
> item.
> The DropDownListBase class maintains a "userProposedSelectedIndex" property
> which appears to overlap in purpose with the proposedSelectedIndex property,
> but does contain the correct value.
> Unfortunately I have not yet been able to identify the exact place where the
> value of _proposedSelectedIndex affects the selected item in the given
> scenario.
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