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I'm trying to create a custom composite component colorPicker using this jQuery plugin http://www.eyecon.ro/colorpicker/.
I´d like to be able to append a jsf tag f:ajax, and when a color is selected, perform an ajax call to the server. I have been testing this functionality and it all appears to be right, but obviously I missed something, because the listener is never called.
This is my component code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface>
<composite:attribute name="label" />
<composite:clientBehavior name="customEvent" event="change" targets="#{cc.clientId}"/>
</composite:interface>
<composite:implementation>
<h:outputStylesheet library="css" name="colorpicker/colorpicker.css" />
<h:outputStylesheet library="css" name="colorpicker/layout.css" />
<h:outputScript library="js" name="colorpicker/jquery.js" target="head"/>
<h:outputScript library="js" name="colorpicker/colorpicker.js" target="head"/>
<h:outputScript library="js" name="colorpicker/eye.js" target="head"/>
<h:outputScript library="js" name="colorpicker/utils.js" target="head"/>
<h:outputScript library="js" name="colorpicker/layout.js" target="head"/>
<h:outputScript library="js" name="colorpicker/hex.js" target="head"/>
<div id="#{cc.clientId}" class="colorSelector">
<div style="background-color: #0000FF;"></div>
</div>
<script>
//jQuery(document).ready(function() {
jQuery('##{cc.clientId}').ColorPicker({
color: '#0000ff',
onShow: function (colpkr) {
jQuery(colpkr).fadeIn(2000);
alert('onchange1');
launchEvent(document.getElementById('#{cc.clientId}'));
alert('onchange2');
//return false;
},
onHide: function (colpkr) {
jQuery(colpkr).fadeOut(2000);
return false;
},
onChange: function (hsb, hex, rgb) {
}
});
//});
/* <![CDATA[ */
function launchEvent(fieldName) {
alert('launchEvent1');
if ("fireEvent" in fieldName) {
alert('launchEvent2');
fieldName.fireEvent("onchange");
alert('launchEvent3');
} else {
alert('launchEvent4');
var evt = document.createEvent("HTMLEvents");
alert('launchEvent5');
evt.initEvent("change", false, true);
alert('launchEvent6');
fieldName.dispatchEvent(evt);
alert('launchEvent7');
}
/* ]]> */
}
</script>
</composite:implementation>
</html>
And this is the page implementation:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:r="http://richfaces.org/rich"
xmlns:a="http://richfaces.org/a4j"
xmlns:s="http://jboss.org/seam/faces"
xmlns:cp="http://java.sun.com/jsf/composite/component">
<h:head>
<title>Test</title>
</h:head>
<h:body>
<f:view>
<h:form prependId="false">
<cp:colorpicker id="colorSelector">
<f:ajax event="customEvent" listener="#{themeBean.changeColor1}" onevent="alert('event raised');"/>
</cp:colorpicker>
<h:inputText value="#{themeBean.color1}"></h:inputText>
</h:form>
</f:view>
</h:body>
</html>
839
The <f:ajax> can only be attached to a ClientBehaviorHolder such as <h:inputText>. A plain HTML <div> isn't such one component. You basically need to have a HTML <input> element, not a <div> element. Even more, how would you otherwise set the submitted value in the bean?
<cc:interface>
...
<cc:clientBehavior name="customEvent" targets="input" event="valueChange" />
</cc:interface>
<cc:implementation>
...
<h:inputText id="input" value="#{cc.attrs.value}" />
<h:outputScript>
jQuery("[id='#{cc.clientId}:input']").ColorPicker({
// ...
});
</h:outputScript>
</cc:implementation>
(please note that I fixed the jQuery selector as well; this way the JSF client ID separator : will be taken into account properly instead of malforming the CSS selector)
Unrelated to the concrete problem, your usage of <f:ajax onevent> is wrong. It should point to a function reference, it should not contain some function calls. The proper usage is
<f:ajax ... onevent="functionName" />
...
<h:outputScript>
function functionName(data) {
alert("Event " + data.status + " raised");
}
</h:outputScript>
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