Properties Methods Events Config Options Direct Link

    Observable
      Filter
        ListFilter

# Class Ext.ux.grid.filter.ListFilter

Package: | Ext.ux.grid.filter
Defined In: | ListFilter.js
Class: | ListFilter
Extends: | Filter

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 Ext.ux.menu.ListMenu component.

Although not shown here, this class accepts all configuration options for Ext.ux.menu.ListMenu.

Example Usage:

    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']
        }]
    });

## Config Options

Config Options | Defined By
--- | ---
| active : Boolean Indicates the initial status of the filter (defaults to false). | Filter
| dataIndex : String The Ext.data.Store dataIndex of the field this filter represents. The dataIndex does not actually have to exist in t... The Ext.data.Store dataIndex of the field this filter represents. The dataIndex does not actually have to exist in the store. | Filter
| listeners : Object A config object containing one or more event handlers to be added to this object during initialization. This should ... A config object containing one or more event handlers to be added to this object during initialization. This should be a valid listeners config object as specified in the addListener example for attaching multiple handlers at once. DOM events from ExtJs Components While some ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this is usually only done when extra value can be added. For example the DataView's `click` event passing the node clicked on. To access DOM events directly from a Component's HTMLElement, listeners must be added to the Element after the Component has been rendered. A plugin can simplify this step:
    // Plugin is configured with a listeners config object.
    // The Component is appended to the argument list of all handler functions.
    Ext.DomObserver = Ext.extend(Object, {
        constructor: function(config) {
            this.listeners = config.listeners ? config.listeners : config;
        },

        // Component passes itself into plugin's init method
        init: function(c) {
            var p, l = this.listeners;
            for (p in l) {
                if (Ext.isFunction(l[p])) {
                    l[p] = this.createHandler(l[p], c);
                } else {
                    l[p].fn = this.createHandler(l[p].fn, c);
                }
            }

            // Add the listeners to the Element immediately following the render call
            c.render = c.render.createSequence(function() {
                var e = c.getEl();
                if (e) {
                    e.on(l);
                }
            });
        },

        createHandler: function(fn, c) {
            return function(e) {
                fn.call(this, e, c);
            };
        }
    });

    var combo = new Ext.form.ComboBox({

        // Collapse combo when its element is clicked on
        plugins: [ new Ext.DomObserver({
            click: function(evt, comp) {
                comp.collapse();
            }
        })],
        store: myStore,
        typeAhead: true,
        mode: 'local',
        triggerAction: 'all'
    });
| Observable
- | options : Array data to be used to implicitly create a data store to back this list when the data source is local. If the data for ... `data` to be used to implicitly create a data store to back this list when the data source is local. If the data for the list is remote, use the `store` config instead. Each item within the provided array may be in one of the following formats: Array :
      options: [
          [11, 'extra small'],
          [18, 'small'],
          [22, 'medium'],
          [35, 'large'],
          [44, 'extra large']
      ]
- Object :
      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'}
      ]
- String :
      options: ['extra small', 'small', 'medium', 'large', 'extra large']
| ListFilter
| phpMode : Boolean Adjust the format of this filter. Defaults to false. When GridFilters @cfg encode = false (default): // phpMode == ... Adjust the format of this filter. Defaults to false. When GridFilters `@cfg encode = false` (default):
    // 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
When GridFilters `@cfg encode = true`:
    // phpMode == false (default):

    filter : [{"type":"list","value":["small","medium"],"field":"size"}]

    // phpMode == true:

    filter : [{"type":"list","value":"small,medium","field":"size"}]
| ListFilter
| store : Ext.data.Store The Ext.data.Store this list should use as its data source when the data source is remote. If the data for the list ... The Ext.data.Store this list should use as its data source when the data source is remote. If the data for the list is local, use the `options` config instead. | ListFilter
| updateBuffer : Number Number of milliseconds to wait after user interaction to fire an update. Only supported by filters: 'list', 'numeri... Number of milliseconds to wait after user interaction to fire an update. Only supported by filters: 'list', 'numeric', and 'string'. Defaults to 500. | Filter

## Public Properties

Property | Defined By
--- | ---
| active : Boolean True if this filter is active. Use setActive() to alter after configuration. | Filter
| getSerialArgs : Object Template method to be implemented by all subclasses that is to get and return serialized filter data for transmissio... Template method to be implemented by all subclasses that is to get and return serialized filter data for transmission to the server. Defaults to Ext.emptyFn. | Filter
| init : Object Template method to be implemented by all subclasses that is to initialize the filter and install required menu items... Template method to be implemented by all subclasses that is to initialize the filter and install required menu items. Defaults to Ext.emptyFn. | Filter
| menu : Ext.menu.Menu The filter configuration menu that will be installed into the filter submenu of a column menu. | Filter

## Public Methods

Method | Defined By
--- | ---
- | addEvents( `Object|String o`, `string Optional.` ) : void Adds the specified events to the list of events which this Observable may fire. Adds the specified events to the list of events which this Observable may fire. Parameters: `o` : Object|String Either an object with event names as properties with a value of `true` or the first event name string if multiple event names are being passed as separate parameters. `Optional.` : string Event name if multiple event names are being passed as separate parameters. Usage:
      this.addEvents('storeloaded', 'storecleared');
Returns: void | Observable
- | addListener( `String eventName`, `Function handler`, [`Object scope`], [`Object options`] ) : void Appends an event handler to this object. Appends an event handler to this object. Parameters: `eventName` : String The name of the event to listen for. `handler` : Function The method the event invokes. `scope` : Object (optional) The scope (`this` reference) in which the handler function is executed. If omitted, defaults to the object which fired the event. `options` : Object (optional) An object containing handler configuration. properties. This may contain any of the following properties: scope : Object The scope (`this` reference) in which the handler function is executed. If omitted, defaults to the object which fired the event. delay : Number The number of milliseconds to delay the invocation of the handler after the event fires. single : Boolean True to add a handler to handle just the next firing of the event, and then remove itself. buffer : Number Causes the handler to be scheduled to run in an Ext.util.DelayedTask delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is not invoked, but the new handler is scheduled in its place. target : Observable Only call the handler if the event was fired on the target Observable, not if the event was bubbled up from a child Observable. Combining Options Using the options argument, it is possible to combine different types of listeners: A delayed, one-time listener.
      myDataView.on('click', this.onClick, this, {
      single: true,
      delay: 100
      });
  Attaching multiple handlers in 1 call The method also allows for a single argument to be passed which is a config object containing properties which specify multiple handlers.
      myGridPanel.on({
      'click' : {
          fn: this.onClick,
          scope: this,
          delay: 100
      },
      'mouseover' : {
          fn: this.onMouseOver,
          scope: this
      },
      'mouseout' : {
          fn: this.onMouseOut,
          scope: this
      }
      });
  Or a shorthand syntax:
      myGridPanel.on({
      'click' : this.onClick,
      'mouseover' : this.onMouseOver,
      'mouseout' : this.onMouseOut,
       scope: this
      });
Returns: void | Observable
| destroy() : void Destroys this filter by purging any event listeners, and removing any menus. Destroys this filter by purging any event listeners, and removing any menus. Parameters: None. Returns: void | Filter
| enableBubble( `Object events` ) : void Enables events fired by this Observable to bubble up an owner hierarchy by calling this.getBubbleTarget() if present... Enables events fired by this Observable to bubble up an owner hierarchy by calling `this.getBubbleTarget()` if present. There is no implementation in the Observable base class. This is commonly used by Ext.Components to bubble events to owner Containers. See Ext.Component.getBubbleTarget. The default implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to access the required target more quickly. Example:
    Ext.override(Ext.form.Field, {
    //  Add functionality to Field's initComponent to enable the change event to bubble

        initComponent: Ext.form.Field.prototype.initComponent.createSequence(function() {
            this.enableBubble('change');
        }),

    //  We know that we want Field's events to bubble directly to the FormPanel.

        getBubbleTarget: function() {
            if (!this.formPanel) {
                this.formPanel = this.findParentByType('form');
            }
            return this.formPanel;
        }
    });

    var myForm = new Ext.formPanel({
        title: 'User Details',
        items: [{
            ...
        }],
        listeners: {
            change: function() {
    //          Title goes red if form has been modified.

                myForm.header.setStyle("color", "red");
            }
        }
    });
Parameters: `events` : Object The event name to bubble, or an Array of event names. Returns: void | Observable
| fireEvent( `String eventName`, `Object... args` ) : Boolean Fires the specified event with the passed parameters (minus the event name). An event may be set to bubble up an Obse... Fires the specified event with the passed parameters (minus the event name). An event may be set to bubble up an Observable parent hierarchy (See Ext.Component.getBubbleTarget) by calling enableBubble. Parameters: `eventName` : String The name of the event to fire. `args` : Object... Variable number of parameters are passed to handlers. Returns: `Boolean` returns false if any of the handlers return false otherwise it returns true. | Observable
| getValue() : Object Template method to be implemented by all subclasses that is to get and return the value of the filter. Defaults to ... Template method to be implemented by all subclasses that is to get and return the value of the filter. Defaults to Ext.emptyFn. Parameters: None. Returns: `Object` The 'serialized' form of this filter | Filter
| hasListener( `String eventName` ) : Boolean Checks to see if this object has any listeners for a specified event Checks to see if this object has any listeners for a specified event Parameters: `eventName` : String The name of the event to check for Returns: `Boolean` True if the event is being listened for, else false | Observable
| isActivatable() : Boolean Template method to be implemented by all subclasses that is to return true if the filter has enough configuration in... Template method to be implemented by all subclasses that is to return `true` if the filter has enough configuration information to be activated. Defaults to `return true`. Parameters: None. Returns: `Boolean` | Filter
| on( `String eventName`, `Function handler`, [`Object scope`], [`Object options`] ) : void Appends an event handler to this object (shorthand for addListener.) Appends an event handler to this object (shorthand for addListener.) Parameters: `eventName` : String The type of event to listen for `handler` : Function The method the event invokes `scope` : Object (optional) The scope (`this` reference) in which the handler function is executed. If omitted, defaults to the object which fired the event. `options` : Object (optional) An object containing handler configuration. Returns: void | Observable
| purgeListeners() : void Removes all listeners for this object Removes all listeners for this object Parameters: None. Returns: void | Observable
| relayEvents( `Object o`, `Array events` ) : void Relays selected events from the specified Observable as if the events were fired by this. Relays selected events from the specified Observable as if the events were fired by `this`. Parameters: `o` : Object The Observable whose events this object is to relay. `events` : Array Array of event names to relay. Returns: void | Observable
| removeListener( `String eventName`, `Function handler`, [`Object scope`] ) : void Removes an event handler. Removes an event handler. Parameters: `eventName` : String The type of event the handler was associated with. `handler` : Function The handler to remove. This must be a reference to the function passed into the addListener call. `scope` : Object (optional) The scope originally specified for the handler. Returns: void | Observable
| resumeEvents() : void Resume firing events. (see suspendEvents) If events were suspended using the queueSuspended parameter, then all event... Resume firing events. (see suspendEvents) If events were suspended using the `queueSuspended` parameter, then all events fired during event suspension will be sent to any listeners now. Parameters: None. Returns: void | Observable
| serialize() : Object/Array Returns the serialized filter data for transmission to the server and fires the 'serialize' event. Returns the serialized filter data for transmission to the server and fires the 'serialize' event. Parameters: None. Returns: `Object/Array` An object or collection of objects containing key value pairs representing the current configuration of the filter. | Filter
| setActive( `Boolean active`, `Boolean suppressEvent` ) : void Sets the status of the filter and fires the appropriate events. Sets the status of the filter and fires the appropriate events. Parameters: `active` : Boolean The new filter state. `suppressEvent` : Boolean True to prevent events from being fired. Returns: void | Filter
| setValue( `Object data` ) : void Template method to be implemented by all subclasses that is to set the value of the filter and fire the 'update' eve... Template method to be implemented by all subclasses that is to set the value of the filter and fire the 'update' event. Defaults to Ext.emptyFn. Parameters: `data` : Object The value to set the filter Returns: void | Filter
| suspendEvents( `Boolean queueSuspended` ) : void Suspend the firing of all events. (see resumeEvents) Suspend the firing of all events. (see resumeEvents) Parameters: `queueSuspended` : Boolean Pass as true to queue up suspended events to be fired after the resumeEvents call instead of discarding all suspended events; Returns: void | Observable
| un( `String eventName`, `Function handler`, [`Object scope`] ) : void Removes an event handler (shorthand for removeListener.) Removes an event handler (shorthand for removeListener.) Parameters: `eventName` : String The type of event the handler was associated with. `handler` : Function The handler to remove. This must be a reference to the function passed into the addListener call. `scope` : Object (optional) The scope originally specified for the handler. Returns: void | Observable
| validateRecord( `Ext.data.Record record` ) : Boolean Template method that is to validate the provided Ext.data.Record against the filters configuration. Template method that is to validate the provided Ext.data.Record against the filters configuration. Parameters: `record` : Ext.data.Record The record to validate Returns: `Boolean` true if the record is valid within the bounds of the filter, false otherwise. | ListFilter

## Public Events

Event | Defined By
--- | ---
| activate : ( `Ext.ux.grid.filter.Filter this` ) Fires when an inactive filter becomes active Fires when an inactive filter becomes active Listeners will be called with the following arguments: `this` : Ext.ux.grid.filter.Filter | Filter
| deactivate : ( `Ext.ux.grid.filter.Filter this` ) Fires when an active filter becomes inactive Fires when an active filter becomes inactive Listeners will be called with the following arguments: `this` : Ext.ux.grid.filter.Filter | Filter
| serialize : ( `Array/Object data`, `Ext.ux.grid.filter.Filter filter` ) Fires after the serialization process. Use this to attach additional parameters to serialization data before it is e... Fires after the serialization process. Use this to attach additional parameters to serialization data before it is encoded and sent to the server. Listeners will be called with the following arguments: `data` : Array/Object A map or collection of maps representing the current filter configuration. `filter` : Ext.ux.grid.filter.Filter The filter being serialized. | Filter
| update : ( `Ext.ux.grid.filter.Filter this` ) Fires when a filter configuration has changed Fires when a filter configuration has changed Listeners will be called with the following arguments: `this` : Ext.ux.grid.filter.Filter The filter object. | Filter