read value editbox in ssjs in a custom control - xpages

Question

I have a custom control with an editbox in a modal:
<xp:inputText id="inputText1"></xp:inputText>
In the onclick event of a button , I would like to read the value of this editbox
var demo = getComponent("inputText1").getValue();
Of course this doesn't work in a custom control, since he doesn't has a handle to inputText1. How can this be done ?
EDIT
Herewith I'm posting my 'whole' code.
Even with a scoped variable it isn't working .... :(
<?xml version="1.0" encoding="UTF-8"?>
<xp:view xmlns:xp="http://www.ibm.com/xsp/core">
<xp:this.resources>
<xp:styleSheet href="bootstrap-modal.css"></xp:styleSheet>
<xp:script src="/bootstrap-modalmanager.js" clientSide="true"></xp:script>
<xp:script src="/bootstrap-modal.js" clientSide="true"></xp:script>
<xp:script src="/JQueryXSnippet.js" clientSide="true"></xp:script>
</xp:this.resources>
<div id="Modal1" class="modal fade" tabindex="-1" data-focus-on="input:first" style="display: none;">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Modal One</h4>
</div>
<div class="modal-body">
<p>Modal 1 </p>
<div class="form-group">
<label for="inputText1">First Name:</label>
<xp:inputText id="inputText1" value="#{viewScope.input1}">
<xp:this.attrs>
<xp:attr name="class" value="form-control"></xp:attr>
<xp:attr name="data-tabindex" value="1"></xp:attr>
</xp:this.attrs>
</xp:inputText>
</div>
<xp:button value="Demo" id="button2">
<xp:eventHandler event="onclick" submit="true"
refreshMode="partial" refreshId="demoPanel">
<xp:this.action><![CDATA[#{javascript:viewScope.message = "input1 = "+viewScope.input1;}]]></xp:this.action>
</xp:eventHandler>
</xp:button>
<xp:panel id="demoPanel">
<xp:text escape="true" id="computedField1"
value="#{viewScope.message}">
</xp:text>
</xp:panel>
</div>
<div class="modal-footer">
<button type="button" data-dismiss="modal" class="btn btn-primary">Close</button>
</div>
</div>
<xp:scriptBlock id="scriptBlock1">
<xp:this.value><![CDATA[
$(document).ready(function(){
x$("#{id:button1}").click(function(){
x$("#{id:Modal1}").modal(
{backdrop: true,
keyboard: false,
show: true
}
);
});
});
]]></xp:this.value>
</xp:scriptBlock>
<xp:button value="Login" id="button1" styleClass="btn btn-info btn-lg">
</xp:button>
</xp:view>

Answer 1

The advice from Tim Tripcony was to go to the model layer, not the component. As ever, he was spot on. Bind the Edit Box to something, probably in this scenario a viewScope variable. Then retrieve the value from that. It's likely to be more efficient than getComponent().

Answer 2

There are two ways that spring to mind are worth trying:
Add the button to the custom control and that way, it'll just work as is.
Set the id to be computed from a custom property of the control control-id and pass in a string e.g. my-made-up-id and then refer to it from any button out-with the custom control. Note the ${} binding is needed when computing the id.
Custom Control
<xp:inputText
id="${javascript:compositeData.control-id}">
</xp:inputText>
XPage
<xc:FieldTest control-id="my-made-up-id"></xc:FieldTest>
<xp:button
value="Get Value"
id="button1">
<xp:eventHandler
event="onclick"
submit="true"
refreshMode="complete">
<xp:this.action><![CDATA[#{javascript:var demo = getComponent("my-made-up-id").getValue();
print("Demo: " + demo);}]]></xp:this.action>
</xp:eventHandler>
</xp:button>