[code="java"]
<!--改成你自己的EXT的样式路径-->
.ux-lovcombo-icon {
width:16px;
height:16px;
float:left;
background-position: -1px -1px ! important;
background-repeat:no-repeat ! important;
}
<!--图片的路径改成你自己的图片路径-->
.ux-lovcombo-icon-checked {
background: transparent url(/plug-in/ext/resources/images/default/menu/checked.gif);
}
.ux-lovcombo-icon-unchecked {
background: transparent url(/plug-in/ext/resources/images/default/menu/unchecked.gif);
}
// add RegExp.escape if it has not been already added
if('function' !== typeof RegExp.escape) {
RegExp.escape = function(s) {
if('string' !== typeof s) {
return s;
}
// Note: if pasting from forum, precede ]/\ with backslash manually
return s.replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
}; // eo function escape
}
// create namespace
Ext.ns('Ext.ux.form');
/**
*
* @class Ext.ux.form.LovCombo
* @extends Ext.form.ComboBox
*/
Ext.ux.form.LovCombo = Ext.extend(Ext.form.ComboBox, {
// {{{
// configuration options
/**
* @cfg {String} checkField name of field used to store checked state.
* It is automatically added to existing fields.
* Change it only if it collides with your normal field.
*/
checkField:'checked'
/**
* @cfg {String} separator separator to use between values and texts
*/
,separator:','
/**
* @cfg {String/Array} tpl Template for items.
* Change it only if you know what you are doing.
*/
// }}}
// {{{
,initComponent:function() {
// template with checkbox
if(!this.tpl) {
this.tpl =
'<tpl for=".">'
+'<div class="x-combo-list-item">'
+'<img src="' + Ext.BLANK_IMAGE_URL + '" '
+'class="ux-lovcombo-icon ux-lovcombo-icon-'
+'{[values.' + this.checkField + '?"checked":"unchecked"' + ']}">'
+'<div class="ux-lovcombo-item-text">{' + (this.displayField || 'text' )+ '}</div>'
+'</div>'
+'</tpl>'
;
}
// call parent
Ext.ux.form.LovCombo.superclass.initComponent.apply(this, arguments);
// install internal event handlers
this.on({
scope:this
,beforequery:this.onBeforeQuery
,blur:this.onRealBlur
});
// remove selection from input field
this.onLoad = this.onLoad.createSequence(function() {
if(this.el) {
var v = this.el.dom.value;
this.el.dom.value = '';
this.el.dom.value = v;
}
});
} // e/o function initComponent
// }}}
// {{{
/**
* Disables default tab key bahavior
* @private
*/
,initEvents:function() {
Ext.ux.form.LovCombo.superclass.initEvents.apply(this, arguments);
// disable default tab handling - does no good
this.keyNav.tab = false;
} // eo function initEvents
// }}}
// {{{
/**
* clears value
*/
,clearValue:function() {
this.value = '';
this.setRawValue(this.value);
this.store.clearFilter();
this.store.each(function(r) {
r.set(this.checkField, false);
}, this);
if(this.hiddenField) {
this.hiddenField.value = '';
}
this.applyEmptyText();
} // eo function clearValue
// }}}
// {{{
/**
* @return {String} separator (plus space) separated list of selected displayFields
* @private
*/
,getCheckedDisplay:function() {
var re = new RegExp(this.separator, "g");
return this.getCheckedValue(this.displayField).replace(re, this.separator + ' ');
} // eo function getCheckedDisplay
// }}}
// {{{
/**
* @return {String} separator separated list of selected valueFields
* @private
*/
,getCheckedValue:function(field) {
field = field || this.valueField;
var c = [];
// store may be filtered so get all records
var snapshot = this.store.snapshot || this.store.data;
snapshot.each(function(r) {
if(r.get(this.checkField)) {
c.push(r.get(field));
}
}, this);
return c.join(this.separator);
} // eo function getCheckedValue
// }}}
// {{{
/**
* beforequery event handler - handles multiple selections
* @param {Object} qe query event
* @private
*/
,onBeforeQuery:function(qe) {
qe.query = qe.query.replace(new RegExp(this.getCheckedDisplay() + '[ ' + this.separator + ']*'), '');
} // eo function onBeforeQuery
// }}}
// {{{
/**
* blur event handler - runs only when real blur event is fired
*/
,onRealBlur:function() {
this.list.hide();
var rv = this.getRawValue();
var rva = rv.split(new RegExp(RegExp.escape(this.separator) + ' *'));
var va = [];
var snapshot = this.store.snapshot || this.store.data;
// iterate through raw values and records and check/uncheck items
Ext.each(rva, function(v) {
snapshot.each(function(r) {
if(v === r.get(this.displayField)) {
va.push(r.get(this.valueField));
}
}, this);
}, this);
this.setValue(va.join(this.separator));
this.store.clearFilter();
} // eo function onRealBlur
// }}}
// {{{
/**
* Combo's onSelect override
* @private
* @param {Ext.data.Record} record record that has been selected in the list
* @param {Number} index index of selected (clicked) record
*/
,onSelect:function(record, index) {
if(this.fireEvent('beforeselect', this, record, index) !== false){
// toggle checked field
record.set(this.checkField, !record.get(this.checkField));
// display full list
if(this.store.isFiltered()) {
this.doQuery(this.allQuery);
}
// set (update) value and fire event
this.setValue(this.getCheckedValue());
this.fireEvent('select', this, record, index);
}
} // eo function onSelect
// }}}
// {{{
/**
* Sets the value of the LovCombo
* @param {Mixed} v value
*/
,setValue:function(v) {
if(v) {
v = '' + v;
if(this.valueField) {
this.store.clearFilter();
this.store.each(function(r) {
var checked = !(!v.match(
'(^|' + this.separator + ')' + RegExp.escape(r.get(this.valueField))
+'(' + this.separator + '|$)'))
;
r.set(this.checkField, checked);
}, this);
this.value = this.getCheckedValue();
this.setRawValue(this.getCheckedDisplay());
if(this.hiddenField) {
this.hiddenField.value = this.value;
}
}
else {
this.value = v;
this.setRawValue(v);
if(this.hiddenField) {
this.hiddenField.value = v;
}
}
if(this.el) {
this.el.removeClass(this.emptyClass);
}
}
else {
this.clearValue();
}
} // eo function setValue
// }}}
// {{{
/**
* Selects all items
*/
,selectAll:function() {
this.store.each(function(record){
// toggle checked field
record.set(this.checkField, true);
}, this);
//display full list
this.doQuery(this.allQuery);
this.setValue(this.getCheckedValue());
} // eo full selectAll
// }}}
// {{{
/**
* Deselects all items. Synonym for clearValue
*/
,deselectAll:function() {
this.clearValue();
} // eo full deselectAll
// }}}
}); // eo extend
Ext.reg('lovcombo', Ext.ux.form.LovCombo);
/*onReady函数的代码在页面加载完后被执行*/
Ext.onReady(function() {
/*,renderTo:'lovcomboct' 这里的lovcomboct对应<div id='lovcomboct'></div>的ID值*/
var lc = new Ext.ux.form.LovCombo({
id:'lovcombo'
,renderTo:'lovcomboct'
,width:300
,hideOnSelect:false
,maxHeight:200
,readOnly:true
,editable:false
,store:[
[1, 'Personnel []']
,[11, 'Finance (33)']
,[5, 'Door']
,[6, 'Door Panel']
,[2, 'Management !77']
,[25, 'Production']
,[3, 'Users']
,[20, 'Window']
,[21, 'Window Panel']
,[22, 'Form Panel']
,[23, 'Grid Panel']
,[24, 'Data View Panel']
]
,triggerAction:'all'
,mode:'local'
});
});
[/code]
