ListFilter.js
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上传日期:2022-08-06
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源码类别:
JavaScript
开发平台:
JavaScript
- /*! * Ext JS Library 3.1.0 * Copyright(c) 2006-2009 Ext JS, LLC * licensing@extjs.com * http://www.extjs.com/license */ /**
- * @class Ext.ux.grid.filter.ListFilter
- * @extends Ext.ux.grid.filter.Filter
- * <p>List filters are able to be preloaded/backed by an Ext.data.Store to load
- * their options the first time they are shown. ListFilter utilizes the
- * {@link Ext.ux.menu.ListMenu} component.</p>
- * <p>Although not shown here, this class accepts all configuration options
- * for {@link Ext.ux.menu.ListMenu}.</p>
- *
- * <p><b><u>Example Usage:</u></b></p>
- * <pre><code>
- var filters = new Ext.ux.grid.GridFilters({
- ...
- filters: [{
- type: 'list',
- dataIndex: 'size',
- phpMode: true,
- // options will be used as data to implicitly creates an ArrayStore
- options: ['extra small', 'small', 'medium', 'large', 'extra large']
- }]
- });
- * </code></pre>
- *
- */
- Ext.ux.grid.filter.ListFilter = Ext.extend(Ext.ux.grid.filter.Filter, {
- /**
- * @cfg {Array} options
- * <p><code>data</code> to be used to implicitly create a data store
- * to back this list when the data source is <b>local</b>. If the
- * data for the list is remote, use the <code>{@link #store}</code>
- * config instead.</p>
- * <br><p>Each item within the provided array may be in one of the
- * following formats:</p>
- * <div class="mdetail-params"><ul>
- * <li><b>Array</b> :
- * <pre><code>
- options: [
- [11, 'extra small'],
- [18, 'small'],
- [22, 'medium'],
- [35, 'large'],
- [44, 'extra large']
- ]
- * </code></pre>
- * </li>
- * <li><b>Object</b> :
- * <pre><code>
- labelField: 'name', // override default of 'text'
- options: [
- {id: 11, name:'extra small'},
- {id: 18, name:'small'},
- {id: 22, name:'medium'},
- {id: 35, name:'large'},
- {id: 44, name:'extra large'}
- ]
- * </code></pre>
- * </li>
- * <li><b>String</b> :
- * <pre><code>
- * options: ['extra small', 'small', 'medium', 'large', 'extra large']
- * </code></pre>
- * </li>
- */
- /**
- * @cfg {Boolean} phpMode
- * <p>Adjust the format of this filter. Defaults to false.</p>
- * <br><p>When GridFilters <code>@cfg encode = false</code> (default):</p>
- * <pre><code>
- // phpMode == false (default):
- filter[0][data][type] list
- filter[0][data][value] value1
- filter[0][data][value] value2
- filter[0][field] prod
- // phpMode == true:
- filter[0][data][type] list
- filter[0][data][value] value1, value2
- filter[0][field] prod
- * </code></pre>
- * When GridFilters <code>@cfg encode = true</code>:
- * <pre><code>
- // phpMode == false (default):
- filter : [{"type":"list","value":["small","medium"],"field":"size"}]
- // phpMode == true:
- filter : [{"type":"list","value":"small,medium","field":"size"}]
- * </code></pre>
- */
- phpMode : false,
- /**
- * @cfg {Ext.data.Store} store
- * The {@link Ext.data.Store} this list should use as its data source
- * when the data source is <b>remote</b>. If the data for the list
- * is local, use the <code>{@link #options}</code> config instead.
- */
- /**
- * @private
- * Template method that is to initialize the filter and install required menu items.
- * @param {Object} config
- */
- init : function (config) {
- this.dt = new Ext.util.DelayedTask(this.fireUpdate, this);
- // if a menu already existed, do clean up first
- if (this.menu){
- this.menu.destroy();
- }
- this.menu = new Ext.ux.menu.ListMenu(config);
- this.menu.on('checkchange', this.onCheckChange, this);
- },
- /**
- * @private
- * Template method that is to get and return the value of the filter.
- * @return {String} The value of this filter
- */
- getValue : function () {
- return this.menu.getSelected();
- },
- /**
- * @private
- * Template method that is to set the value of the filter.
- * @param {Object} value The value to set the filter
- */
- setValue : function (value) {
- this.menu.setSelected(value);
- this.fireEvent('update', this);
- },
- /**
- * @private
- * Template method that is to return <tt>true</tt> if the filter
- * has enough configuration information to be activated.
- * @return {Boolean}
- */
- isActivatable : function () {
- return this.getValue().length > 0;
- },
- /**
- * @private
- * Template method that is to get and return serialized filter data for
- * transmission to the server.
- * @return {Object/Array} An object or collection of objects containing
- * key value pairs representing the current configuration of the filter.
- */
- getSerialArgs : function () {
- var args = {type: 'list', value: this.phpMode ? this.getValue().join(',') : this.getValue()};
- return args;
- },
- /** @private */
- onCheckChange : function(){
- this.dt.delay(this.updateBuffer);
- },
- /**
- * Template method that is to validate the provided Ext.data.Record
- * against the filters configuration.
- * @param {Ext.data.Record} record The record to validate
- * @return {Boolean} true if the record is valid within the bounds
- * of the filter, false otherwise.
- */
- validateRecord : function (record) {
- return this.getValue().indexOf(record.get(this.dataIndex)) > -1;
- }
- });