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<pre class="prettyprint lang-js"><span id='Ext-ux-FieldReplicator'>/**
</span> * @class Ext.ux.FieldReplicator
* <p>A plugin for Field Components which creates clones of the Field for as
* long as the user keeps filling them. Leaving the final one blank ends the repeating series.</p>
* <p>Usage:</p>
* <pre><code>
{
xtype: 'combo',
plugins: [ Ext.ux.FieldReplicator ],
triggerAction: 'all',
fieldLabel: 'Select recipient',
store: recipientStore
}
* </code></pre>
*/
Ext.define('Ext.ux.FieldReplicator', {
singleton: true,
init: function(field) {
// Assign the field an id grouping it with fields cloned from it. If it already
// has an id that means it is itself a clone.
if (!field.replicatorId) {
field.replicatorId = Ext.id();
}
field.on('blur', this.onBlur, this);
},
onBlur: function(field) {
var ownerCt = field.ownerCt,
replicatorId = field.replicatorId,
isEmpty = Ext.isEmpty(field.getRawValue()),
siblings = ownerCt.query('[replicatorId=' + replicatorId + ']'),
isLastInGroup = siblings[siblings.length - 1] === field,
clone, idx;
// If a field before the final one was blanked out, remove it
if (isEmpty && !isLastInGroup) {
Ext.Function.defer(field.destroy, 10, field); //delay to allow tab key to move focus first
}
// If the field is the last in the list and has a value, add a cloned field after it
else if(!isEmpty && isLastInGroup) {
if (field.onReplicate) {
field.onReplicate();
}
clone = field.cloneConfig({replicatorId: replicatorId});
idx = ownerCt.items.indexOf(field);
ownerCt.add(idx + 1, clone);
}
}
});</pre>
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