Ext.namespace("Ext.ux.form");
Ext.ux.form.ComboBoxAdd = function(config) {
Ext.ux.form.ComboBoxAdd.superclass.constructor.apply(this, arguments);
};
Ext.extend(Ext.ux.form.ComboBoxAdd, Ext.form.ComboBox, {
/***
* trigger classes.
*/
trigger1Class: '',
trigger2Class: 'x-form-add-trigger',
/***
* initComponent
*/
initComponent : function(){
Ext.ux.form.ComboBoxAdd.superclass.initComponent.call(this);
/***
* @event add
* @param {field: Ext.ux.form.ComboBoxAdd, button: Ext.Element}
* fires when 2nd trigger is clicked
*/
this.addEvents({add : true});
// implement triggerConfig from Ext.form.TwinTriggerField
this.triggerConfig = {
tag:'span', cls:'x-form-twin-triggers', cn:[
{tag: "img", src: Ext.BLANK_IMAGE_URL, cls: "x-form-trigger " + this.trigger1Class},
{tag: "img", src: Ext.BLANK_IMAGE_URL, cls: "x-form-trigger " + this.trigger2Class}
]};
},
/***
* getTrigger
* copied from Ext.form.TwinTriggerField
* @param {Object} index
*/
getTrigger : function(index){
return this.triggers[index];
},
/***
* initTrigger
* copied from Ext.form.TwinTriggerField
*/
initTrigger : function(){
var ts = this.trigger.select('.x-form-trigger', true);
this.wrap.setStyle('overflow', 'hidden');
var triggerField = this;
ts.each(function(t, all, index){
t.hide = function(){
var w = triggerField.wrap.getWidth();
this.dom.style.display = 'none';
triggerField.el.setWidth(w-triggerField.trigger.getWidth());
};
t.show = function(){
var w = triggerField.wrap.getWidth();
this.dom.style.display = '';
triggerField.el.setWidth(w-triggerField.trigger.getWidth());
};
var triggerIndex = 'Trigger'+(index+1);
if(this['hide'+triggerIndex]){
t.dom.style.display = 'none';
}
t.on("click", this['on'+triggerIndex+'Click'], this, {preventDefault:true});
t.addClassOnOver('x-form-trigger-over');
t.addClassOnClick('x-form-trigger-click');
}, this);
this.triggers = ts.elements;
},
/***
* onTrigger1Click
* defer to std ComboBox trigger method
*/
onTrigger1Click : function() {
this.onTriggerClick();
},
/***
* onTrigger2Click
* this is the "add" button handler. fire 'add' event
*/
onTrigger2Click : function() {
this.fireEvent('add', {field: this, button: this.triggers[1]});
},
/***
* insert
* provide a convenience method to insert ONE AND ONLY ONE record to the store.
* @param {Object} index
* @param {Object} data (
*/
insert : function(index, data) {
this.reset();
var rec = new this.store.recordType(data);
rec.id = rec.data.id;
this.store.insert(index, rec);
this.setValue(rec.data.id);
this.fireEvent('select', this, rec, index);
}
});
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Ext.ux.form.ComboBoxAdd</title>
<link rel="stylesheet" type="text/css" href="http://extjs.com/deploy/dev/resources/css/ext-all.css" />
<script type="text/javascript" src="http://extjs.com/deploy/dev/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="http://extjs.com/deploy/dev/ext-all-debug.js"></script>
<style>
.x-form-add-trigger {
background-image: url(../../resources/images/default/grid/wait.gif) !important;
background-position: center center !important;
cursor: pointer;
border: 0 !important;
margin-left: 2px;
}
</style>
<script type="text/javascript" src="cbAdd.js"></script>
<script type="text/javascript">
Ext.QuickTips.init();
Ext.form.Field.prototype.msgTarget = 'side';
Ext.onReady(function(){
var x = new Ext.ux.form.ComboBoxAdd({
renderTo:Ext.getBody(),
hiddenName : 'q_type', displayField : 'name', valueField : 'code', width : 100, emptyText : '全部······', mode : 'local', triggerAction : 'all', selectOnFocus : true
});
x.on('add', function(ev) {
alert('you clicked the add button'); // <-- you might show a form on a dialog here
});
});
</script>
</head>
<body>
<a href="http://extjs.com/forum/showthread.php?t=20511" target="_blank">原贴</a>
</body>
</html>
