/**
+ * @class Ext.form.field.ComboBox
+ * @extends Ext.form.field.Picker
+ *
+ * A combobox control with support for autocomplete, remote loading, and many other features.
+ *
+ * A ComboBox is like a combination of a traditional HTML text `<input>` field and a `<select>`
+ * field; the user is able to type freely into the field, and/or pick values from a dropdown selection
+ * list. The user can input any value by default, even if it does not appear in the selection list;
+ * to prevent free-form values and restrict them to items in the list, set {@link #forceSelection} to `true`.
+ *
+ * The selection list's options are populated from any {@link Ext.data.Store}, including remote
+ * stores. The data items in the store are mapped to each option's displayed text and backing value via
+ * the {@link #valueField} and {@link #displayField} configurations, respectively.
+ *
+ * If your store is not remote, i.e. it depends only on local data and is loaded up front, you should be
+ * sure to set the {@link #queryMode} to `'local'`, as this will improve responsiveness for the user.
+ *
+ * {@img Ext.form.ComboBox/Ext.form.ComboBox.png Ext.form.ComboBox component}
+ *
+ * ## Example usage:
+ *
+ * // The data store containing the list of states
+ * var states = Ext.create('Ext.data.Store', {
+ * fields: ['abbr', 'name'],
+ * data : [
+ * {"abbr":"AL", "name":"Alabama"},
+ * {"abbr":"AK", "name":"Alaska"},
+ * {"abbr":"AZ", "name":"Arizona"}
+ * //...
+ * ]
+ * });
+ *
+ * // Create the combo box, attached to the states data store
+ * Ext.create('Ext.form.ComboBox', {
+ * fieldLabel: 'Choose State',
+ * store: states,
+ * queryMode: 'local',
+ * displayField: 'name',
+ * valueField: 'abbr',
+ * renderTo: Ext.getBody()
+ * });
+ *
+ * ## Events
+ *
+ * To do something when something in ComboBox is selected, configure the select event:
+ *
+ * var cb = Ext.create('Ext.form.ComboBox', {
+ * // all of your config options
+ * listeners:{
+ * scope: yourScope,
+ * 'select': yourFunction
+ * }
+ * });
+ *
+ * // Alternatively, you can assign events after the object is created:
+ * var cb = new Ext.form.field.ComboBox(yourOptions);
+ * cb.on('select', yourFunction, yourScope);
+ *
+ * ## Multiple Selection
+ *
+ * ComboBox also allows selection of multiple items from the list; to enable multi-selection set the
+ * {@link #multiSelect} config to `true`.
+ *
+ * @constructor
+ * Create a new ComboBox.
+ * @param {Object} config Configuration options
+ * @xtype combo
+ * @docauthor Jason Johnston <jason@sencha.com>
+ */
+Ext.define('Ext.form.field.ComboBox', {
+ extend:'Ext.form.field.Picker',
+ requires: ['Ext.util.DelayedTask', 'Ext.EventObject', 'Ext.view.BoundList', 'Ext.view.BoundListKeyNav', 'Ext.data.StoreManager'],
+ alternateClassName: 'Ext.form.ComboBox',
+ alias: ['widget.combobox', 'widget.combo'],
+
+ /**
+ * @cfg {String} triggerCls
+ * An additional CSS class used to style the trigger button. The trigger will always get the
+ * {@link #triggerBaseCls} by default and <tt>triggerCls</tt> will be <b>appended</b> if specified.
+ * Defaults to 'x-form-arrow-trigger' for ComboBox.
+ */
+ triggerCls: Ext.baseCSSPrefix + 'form-arrow-trigger',
+
+ /**
+ * @cfg {Ext.data.Store/Array} store The data source to which this combo is bound (defaults to <tt>undefined</tt>).
+ * Acceptable values for this property are:
+ * <div class="mdetail-params"><ul>
+ * <li><b>any {@link Ext.data.Store Store} subclass</b></li>
+ * <li><b>an Array</b> : Arrays will be converted to a {@link Ext.data.Store} internally,
+ * automatically generating {@link Ext.data.Field#name field names} to work with all data components.
+ * <div class="mdetail-params"><ul>
+ * <li><b>1-dimensional array</b> : (e.g., <tt>['Foo','Bar']</tt>)<div class="sub-desc">
+ * A 1-dimensional array will automatically be expanded (each array item will be used for both the combo
+ * {@link #valueField} and {@link #displayField})</div></li>
+ * <li><b>2-dimensional array</b> : (e.g., <tt>[['f','Foo'],['b','Bar']]</tt>)<div class="sub-desc">
+ * For a multi-dimensional array, the value in index 0 of each item will be assumed to be the combo
+ * {@link #valueField}, while the value at index 1 is assumed to be the combo {@link #displayField}.
+ * </div></li></ul></div></li></ul></div>
+ * <p>See also <tt>{@link #queryMode}</tt>.</p>
+ */
+
+ /**
+ * @cfg {Boolean} multiSelect
+ * If set to <tt>true</tt>, allows the combo field to hold more than one value at a time, and allows selecting
+ * multiple items from the dropdown list. The combo's text field will show all selected values separated by
+ * the {@link #delimiter}. (Defaults to <tt>false</tt>.)
+ */
+ multiSelect: false,
+
+ /**
+ * @cfg {String} delimiter
+ * The character(s) used to separate the {@link #displayField display values} of multiple selected items
+ * when <tt>{@link #multiSelect} = true</tt>. Defaults to <tt>', '</tt>.
+ */
+ delimiter: ', ',
+
+ /**
+ * @cfg {String} displayField The underlying {@link Ext.data.Field#name data field name} to bind to this
+ * ComboBox (defaults to 'text').
+ * <p>See also <tt>{@link #valueField}</tt>.</p>
+ */
+ displayField: 'text',
+
+ /**
+ * @cfg {String} valueField
+ * @required
+ * The underlying {@link Ext.data.Field#name data value name} to bind to this ComboBox (defaults to match
+ * the value of the {@link #displayField} config).
+ * <p><b>Note</b>: use of a <tt>valueField</tt> requires the user to make a selection in order for a value to be
+ * mapped. See also <tt>{@link #displayField}</tt>.</p>
+ */
+
+ /**
+ * @cfg {String} triggerAction The action to execute when the trigger is clicked.
+ * <div class="mdetail-params"><ul>
+ * <li><b><tt>'all'</tt></b> : <b>Default</b>
+ * <p class="sub-desc">{@link #doQuery run the query} specified by the <tt>{@link #allQuery}</tt> config option</p></li>
+ * <li><b><tt>'query'</tt></b> :
+ * <p class="sub-desc">{@link #doQuery run the query} using the {@link Ext.form.field.Base#getRawValue raw value}.</p></li>
+ * </ul></div>
+ * <p>See also <code>{@link #queryParam}</code>.</p>
+ */
+ triggerAction: 'all',
+
+ /**
+ * @cfg {String} allQuery The text query to send to the server to return all records for the list
+ * with no filtering (defaults to '')
+ */
+ allQuery: '',
+
+ /**
+ * @cfg {String} queryParam Name of the query ({@link Ext.data.Store#baseParam baseParam} name for the store)
+ * as it will be passed on the querystring (defaults to <tt>'query'</tt>)
+ */
+ queryParam: 'query',
+
+ /**
+ * @cfg {String} queryMode
+ * The mode for queries. Acceptable values are:
+ * <div class="mdetail-params"><ul>
+ * <li><b><tt>'remote'</tt></b> : <b>Default</b>
+ * <p class="sub-desc">Automatically loads the <tt>{@link #store}</tt> the <b>first</b> time the trigger
+ * is clicked. If you do not want the store to be automatically loaded the first time the trigger is
+ * clicked, set to <tt>'local'</tt> and manually load the store. To force a requery of the store
+ * <b>every</b> time the trigger is clicked see <tt>{@link #lastQuery}</tt>.</p></li>
+ * <li><b><tt>'local'</tt></b> :
+ * <p class="sub-desc">ComboBox loads local data</p>
+ * <pre><code>
+var combo = new Ext.form.field.ComboBox({
+ renderTo: document.body,
+ queryMode: 'local',
+ store: new Ext.data.ArrayStore({
+ id: 0,
+ fields: [
+ 'myId', // numeric value is the key
+ 'displayText'
+ ],
+ data: [[1, 'item1'], [2, 'item2']] // data is local
+ }),
+ valueField: 'myId',
+ displayField: 'displayText',
+ triggerAction: 'all'
+});
+ * </code></pre></li>
+ * </ul></div>
+ */
+ queryMode: 'remote',
+
+ queryCaching: true,
+
+ /**
+ * @cfg {Number} pageSize If greater than <tt>0</tt>, a {@link Ext.toolbar.Paging} is displayed in the
+ * footer of the dropdown list and the {@link #doQuery filter queries} will execute with page start and
+ * {@link Ext.toolbar.Paging#pageSize limit} parameters. Only applies when <tt>{@link #queryMode} = 'remote'</tt>
+ * (defaults to <tt>0</tt>).
+ */
+ pageSize: 0,
+
+ /**
+ * @cfg {Number} queryDelay The length of time in milliseconds to delay between the start of typing and
+ * sending the query to filter the dropdown list (defaults to <tt>500</tt> if <tt>{@link #queryMode} = 'remote'</tt>
+ * or <tt>10</tt> if <tt>{@link #queryMode} = 'local'</tt>)
+ */
+
+ /**
+ * @cfg {Number} minChars The minimum number of characters the user must type before autocomplete and
+ * {@link #typeAhead} activate (defaults to <tt>4</tt> if <tt>{@link #queryMode} = 'remote'</tt> or <tt>0</tt> if
+ * <tt>{@link #queryMode} = 'local'</tt>, does not apply if <tt>{@link Ext.form.field.Trigger#editable editable} = false</tt>).
+ */
+
+ /**
+ * @cfg {Boolean} autoSelect <tt>true</tt> to select the first result gathered by the data store (defaults
+ * to <tt>true</tt>). A false value would require a manual selection from the dropdown list to set the components value
+ * unless the value of ({@link #typeAhead}) were true.
+ */
+ autoSelect: true,
+
+ /**
+ * @cfg {Boolean} typeAhead <tt>true</tt> to populate and autoselect the remainder of the text being
+ * typed after a configurable delay ({@link #typeAheadDelay}) if it matches a known value (defaults
+ * to <tt>false</tt>)
+ */
+ typeAhead: false,
+
+ /**
+ * @cfg {Number} typeAheadDelay The length of time in milliseconds to wait until the typeahead text is displayed
+ * if <tt>{@link #typeAhead} = true</tt> (defaults to <tt>250</tt>)
+ */
+ typeAheadDelay: 250,
+
+ /**
+ * @cfg {Boolean} selectOnTab
+ * Whether the Tab key should select the currently highlighted item. Defaults to <tt>true</tt>.
+ */
+ selectOnTab: true,
+
+ /**
+ * @cfg {Boolean} forceSelection <tt>true</tt> to restrict the selected value to one of the values in the list,
+ * <tt>false</tt> to allow the user to set arbitrary text into the field (defaults to <tt>false</tt>)
+ */
+ forceSelection: false,
+
+ /**
+ * @cfg {String} valueNotFoundText When using a name/value combo, if the value passed to setValue is not found in
+ * the store, valueNotFoundText will be displayed as the field text if defined (defaults to undefined). If this
+ * default text is used, it means there is no value set and no validation will occur on this field.
+ */
+
+ /**
+ * The value of the match string used to filter the store. Delete this property to force a requery.
+ * Example use:
+ * <pre><code>
+var combo = new Ext.form.field.ComboBox({
+ ...
+ queryMode: 'remote',
+ listeners: {
+ // delete the previous query in the beforequery event or set
+ // combo.lastQuery = null (this will reload the store the next time it expands)
+ beforequery: function(qe){
+ delete qe.combo.lastQuery;
+ }
+ }
+});
+ * </code></pre>
+ * To make sure the filter in the store is not cleared the first time the ComboBox trigger is used
+ * configure the combo with <tt>lastQuery=''</tt>. Example use:
+ * <pre><code>
+var combo = new Ext.form.field.ComboBox({
+ ...
+ queryMode: 'local',
+ triggerAction: 'all',
+ lastQuery: ''
+});
+ * </code></pre>
+ * @property lastQuery
+ * @type String
+ */
+
+ /**
+ * @cfg {Object} defaultListConfig
+ * Set of options that will be used as defaults for the user-configured {@link #listConfig} object.
+ */
+ defaultListConfig: {
+ emptyText: '',
+ loadingText: 'Loading...',
+ loadingHeight: 70,
+ minWidth: 70,
+ maxHeight: 300,
+ shadow: 'sides'
+ },
+
+ /**
+ * @cfg {Mixed} transform
+ * The id, DOM node or {@link Ext.core.Element} of an existing HTML <tt><select></tt> element to
+ * convert into a ComboBox. The target select's options will be used to build the options in the ComboBox
+ * dropdown; a configured {@link #store} will take precedence over this.
+ */
+
+ /**
+ * @cfg {Object} listConfig
+ * <p>An optional set of configuration properties that will be passed to the {@link Ext.view.BoundList}'s
+ * constructor. Any configuration that is valid for BoundList can be included. Some of the more useful
+ * ones are:</p>
+ * <ul>
+ * <li>{@link Ext.view.BoundList#cls} - defaults to empty</li>
+ * <li>{@link Ext.view.BoundList#emptyText} - defaults to empty string</li>
+ * <li>{@link Ext.view.BoundList#getInnerTpl} - defaults to the template defined in BoundList</li>
+ * <li>{@link Ext.view.BoundList#itemSelector} - defaults to the value defined in BoundList</li>
+ * <li>{@link Ext.view.BoundList#loadingText} - defaults to <tt>'Loading...'</tt></li>
+ * <li>{@link Ext.view.BoundList#minWidth} - defaults to <tt>70</tt></li>
+ * <li>{@link Ext.view.BoundList#maxWidth} - defaults to <tt>undefined</tt></li>
+ * <li>{@link Ext.view.BoundList#maxHeight} - defaults to <tt>300</tt></li>
+ * <li>{@link Ext.view.BoundList#resizable} - defaults to <tt>false</tt></li>
+ * <li>{@link Ext.view.BoundList#shadow} - defaults to <tt>'sides'</tt></li>
+ * <li>{@link Ext.view.BoundList#width} - defaults to <tt>undefined</tt> (automatically set to the width
+ * of the ComboBox field if {@link #matchFieldWidth} is true)</li>
+ * </ul>
+ */
+
+ //private
+ ignoreSelection: 0,
+
+ initComponent: function() {
+ var me = this,
+ isDefined = Ext.isDefined,
+ store = me.store,
+ transform = me.transform,
+ transformSelect, isLocalMode;
+
+ //<debug>
+ if (!store && !transform) {
+ Ext.Error.raise('Either a valid store, or a HTML select to transform, must be configured on the combo.');
+ }
+ if (me.typeAhead && me.multiSelect) {
+ Ext.Error.raise('typeAhead and multiSelect are mutually exclusive options -- please remove one of them.');
+ }
+ if (me.typeAhead && !me.editable) {
+ Ext.Error.raise('If typeAhead is enabled the combo must be editable: true -- please change one of those settings.');
+ }
+ if (me.selectOnFocus && !me.editable) {
+ Ext.Error.raise('If selectOnFocus is enabled the combo must be editable: true -- please change one of those settings.');
+ }
+ //</debug>
+
+ this.addEvents(
+ // TODO need beforeselect?
+
+ /**
+ * @event beforequery
+ * Fires before all queries are processed. Return false to cancel the query or set the queryEvent's
+ * cancel property to true.
+ * @param {Object} queryEvent An object that has these properties:<ul>
+ * <li><code>combo</code> : Ext.form.field.ComboBox <div class="sub-desc">This combo box</div></li>
+ * <li><code>query</code> : String <div class="sub-desc">The query string</div></li>
+ * <li><code>forceAll</code> : Boolean <div class="sub-desc">True to force "all" query</div></li>
+ * <li><code>cancel</code> : Boolean <div class="sub-desc">Set to true to cancel the query</div></li>
+ * </ul>
+ */
+ 'beforequery',
+
+ /*
+ * @event select
+ * Fires when at least one list item is selected.
+ * @param {Ext.form.field.ComboBox} combo This combo box
+ * @param {Array} records The selected records
+ */
+ 'select'
+ );
+
+ // Build store from 'transform' HTML select element's options
+ if (!store && transform) {
+ transformSelect = Ext.getDom(transform);
+ if (transformSelect) {
+ store = Ext.Array.map(Ext.Array.from(transformSelect.options), function(option) {
+ return [option.value, option.text];
+ });
+ if (!me.name) {
+ me.name = transformSelect.name;
+ }
+ if (!('value' in me)) {
+ me.value = transformSelect.value;
+ }
+ }
+ }
+
+ me.bindStore(store, true);
+ store = me.store;
+ if (store.autoCreated) {
+ me.queryMode = 'local';
+ me.valueField = me.displayField = 'field1';
+ if (!store.expanded) {
+ me.displayField = 'field2';
+ }
+ }
+
+
+ if (!isDefined(me.valueField)) {
+ me.valueField = me.displayField;
+ }
+
+ isLocalMode = me.queryMode === 'local';
+ if (!isDefined(me.queryDelay)) {
+ me.queryDelay = isLocalMode ? 10 : 500;
+ }
+ if (!isDefined(me.minChars)) {
+ me.minChars = isLocalMode ? 0 : 4;
+ }
+
+ if (!me.displayTpl) {
+ me.displayTpl = Ext.create('Ext.XTemplate',
+ '<tpl for=".">' +
+ '{[typeof values === "string" ? values : values.' + me.displayField + ']}' +
+ '<tpl if="xindex < xcount">' + me.delimiter + '</tpl>' +
+ '</tpl>'
+ );
+ } else if (Ext.isString(me.displayTpl)) {
+ me.displayTpl = Ext.create('Ext.XTemplate', me.displayTpl);
+ }
+
+ me.callParent();
+
+ me.doQueryTask = Ext.create('Ext.util.DelayedTask', me.doRawQuery, me);
+
+ // store has already been loaded, setValue
+ if (me.store.getCount() > 0) {
+ me.setValue(me.value);
+ }
+
+ // render in place of 'transform' select
+ if (transformSelect) {
+ me.render(transformSelect.parentNode, transformSelect);
+ Ext.removeNode(transformSelect);
+ delete me.renderTo;
+ }
+ },
+
+ beforeBlur: function() {
+ var me = this;
+ me.doQueryTask.cancel();
+ if (me.forceSelection) {
+ me.assertValue();
+ } else {
+ me.collapse();
+ }
+ },
+
+ // private
+ assertValue: function() {
+ var me = this,
+ value = me.getRawValue(),
+ rec;
+
+ if (me.multiSelect) {
+ // For multiselect, check that the current displayed value matches the current
+ // selection, if it does not then revert to the most recent selection.
+ if (value !== me.getDisplayValue()) {
+ me.setValue(me.lastSelection);
+ }
+ } else {
+ // For single-select, match the displayed value to a record and select it,
+ // if it does not match a record then revert to the most recent selection.
+ rec = me.findRecordByDisplay(value);
+ if (rec) {
+ me.select(rec);
+ } else {
+ me.setValue(me.lastSelection);
+ }
+ }
+ me.collapse();
+ },
+
+ onTypeAhead: function() {
+ var me = this,
+ displayField = me.displayField,
+ record = me.store.findRecord(displayField, me.getRawValue()),
+ boundList = me.getPicker(),
+ newValue, len, selStart;
+
+ if (record) {
+ newValue = record.get(displayField);
+ len = newValue.length;
+ selStart = me.getRawValue().length;
+
+ boundList.highlightItem(boundList.getNode(record));
+
+ if (selStart !== 0 && selStart !== len) {
+ me.setRawValue(newValue);
+ me.selectText(selStart, newValue.length);
+ }
+ }
+ },
+
+ // invoked when a different store is bound to this combo
+ // than the original
+ resetToDefault: function() {
+
+ },
+
+ bindStore: function(store, initial) {
+ var me = this,
+ oldStore = me.store;
+
+ // this code directly accesses this.picker, bc invoking getPicker
+ // would create it when we may be preping to destroy it
+ if (oldStore && !initial) {
+ if (oldStore !== store && oldStore.autoDestroy) {
+ oldStore.destroy();
+ } else {
+ oldStore.un({
+ scope: me,
+ load: me.onLoad,
+ exception: me.collapse
+ });
+ }
+ if (!store) {
+ me.store = null;
+ if (me.picker) {
+ me.picker.bindStore(null);
+ }
+ }
+ }
+ if (store) {
+ if (!initial) {
+ me.resetToDefault();
+ }
+
+ me.store = Ext.data.StoreManager.lookup(store);
+ me.store.on({
+ scope: me,
+ load: me.onLoad,
+ exception: me.collapse
+ });
+
+ if (me.picker) {
+ me.picker.bindStore(store);
+ }
+ }
+ },
+
+ onLoad: function() {
+ var me = this,
+ value = me.value;
+
+ me.syncSelection();
+ if (me.picker && !me.picker.getSelectionModel().hasSelection()) {
+ me.doAutoSelect();
+ }
+ },
+
+ /**
+ * @private
+ * Execute the query with the raw contents within the textfield.
+ */
+ doRawQuery: function() {
+ this.doQuery(this.getRawValue());
+ },
+
+ /**
+ * Executes a query to filter the dropdown list. Fires the {@link #beforequery} event prior to performing the
+ * query allowing the query action to be canceled if needed.
+ * @param {String} queryString The SQL query to execute
+ * @param {Boolean} forceAll <tt>true</tt> to force the query to execute even if there are currently fewer
+ * characters in the field than the minimum specified by the <tt>{@link #minChars}</tt> config option. It
+ * also clears any filter previously saved in the current store (defaults to <tt>false</tt>)
+ * @return {Boolean} true if the query was permitted to run, false if it was cancelled by a {@link #beforequery} handler.
+ */
+ doQuery: function(queryString, forceAll) {
+ queryString = queryString || '';
+
+ // store in object and pass by reference in 'beforequery'
+ // so that client code can modify values.
+ var me = this,
+ qe = {
+ query: queryString,
+ forceAll: forceAll,
+ combo: me,
+ cancel: false
+ },
+ store = me.store,
+ isLocalMode = me.queryMode === 'local';
+
+ if (me.fireEvent('beforequery', qe) === false || qe.cancel) {
+ return false;
+ }
+
+ // get back out possibly modified values
+ queryString = qe.query;
+ forceAll = qe.forceAll;
+
+ // query permitted to run
+ if (forceAll || (queryString.length >= me.minChars)) {
+ // expand before starting query so LoadMask can position itself correctly
+ me.expand();
+
+ // make sure they aren't querying the same thing
+ if (!me.queryCaching || me.lastQuery !== queryString) {
+ me.lastQuery = queryString;
+ store.clearFilter(!forceAll);
+ if (isLocalMode) {
+ if (!forceAll) {
+ store.filter(me.displayField, queryString);
+ }
+ } else {
+ store.load({
+ params: me.getParams(queryString)
+ });
+ }
+ }
+
+ // Clear current selection if it does not match the current value in the field
+ if (me.getRawValue() !== me.getDisplayValue()) {
+ me.ignoreSelection++;
+ me.picker.getSelectionModel().deselectAll();
+ me.ignoreSelection--;
+ }
+
+ if (isLocalMode) {
+ me.doAutoSelect();
+ }
+ if (me.typeAhead) {
+ me.doTypeAhead();
+ }
+ }
+ return true;
+ },
+
+ // private
+ getParams: function(queryString) {
+ var p = {},
+ pageSize = this.pageSize;
+ p[this.queryParam] = queryString;
+ if (pageSize) {
+ p.start = 0;
+ p.limit = pageSize;
+ }
+ return p;
+ },
+
+ /**
+ * @private
+ * If the autoSelect config is true, and the picker is open, highlights the first item.
+ */
+ doAutoSelect: function() {
+ var me = this,
+ picker = me.picker,
+ lastSelected, itemNode;
+ if (picker && me.autoSelect && me.store.getCount() > 0) {
+ // Highlight the last selected item and scroll it into view
+ lastSelected = picker.getSelectionModel().lastSelected;
+ itemNode = picker.getNode(lastSelected || 0);
+ if (itemNode) {
+ picker.highlightItem(itemNode);
+ picker.listEl.scrollChildIntoView(itemNode, false);
+ }
+ }
+ },
+
+ doTypeAhead: function() {
+ if (!this.typeAheadTask) {
+ this.typeAheadTask = Ext.create('Ext.util.DelayedTask', this.onTypeAhead, this);
+ }
+ if (this.lastKey != Ext.EventObject.BACKSPACE && this.lastKey != Ext.EventObject.DELETE) {
+ this.typeAheadTask.delay(this.typeAheadDelay);
+ }
+ },
+
+ onTriggerClick: function() {
+ var me = this;
+ if (!me.readOnly && !me.disabled) {
+ if (me.isExpanded) {
+ me.collapse();
+ } else {
+ me.onFocus({});
+ if (me.triggerAction === 'all') {
+ me.doQuery(me.allQuery, true);
+ } else {
+ me.doQuery(me.getRawValue());
+ }
+ }
+ me.inputEl.focus();
+ }
+ },
+
+
+ // store the last key and doQuery if relevant
+ onKeyUp: function(e, t) {
+ var me = this,
+ key = e.getKey();
+
+ if (!me.readOnly && !me.disabled && me.editable) {
+ me.lastKey = key;
+ // we put this in a task so that we can cancel it if a user is
+ // in and out before the queryDelay elapses
+
+ // perform query w/ any normal key or backspace or delete
+ if (!e.isSpecialKey() || key == e.BACKSPACE || key == e.DELETE) {
+ me.doQueryTask.delay(me.queryDelay);
+ }
+ }
+ },
+
+ initEvents: function() {
+ var me = this;
+ me.callParent();
+
+ // setup keyboard handling
+ me.mon(me.inputEl, 'keyup', me.onKeyUp, me);
+ },
+
+ createPicker: function() {
+ var me = this,
+ picker,
+ menuCls = Ext.baseCSSPrefix + 'menu',
+ opts = Ext.apply({
+ selModel: {
+ mode: me.multiSelect ? 'SIMPLE' : 'SINGLE'
+ },
+ floating: true,
+ hidden: true,
+ ownerCt: me.ownerCt,
+ cls: me.el.up('.' + menuCls) ? menuCls : '',
+ store: me.store,
+ displayField: me.displayField,
+ focusOnToFront: false,
+ pageSize: me.pageSize
+ }, me.listConfig, me.defaultListConfig);
+
+ picker = me.picker = Ext.create('Ext.view.BoundList', opts);
+
+ me.mon(picker, {
+ itemclick: me.onItemClick,
+ refresh: me.onListRefresh,
+ scope: me
+ });
+
+ me.mon(picker.getSelectionModel(), {
+ selectionChange: me.onListSelectionChange,
+ scope: me
+ });
+
+ return picker;
+ },
+
+ onListRefresh: function() {
+ this.alignPicker();
+ this.syncSelection();
+ },
+
+ onItemClick: function(picker, record){
+ /*
+ * If we're doing single selection, the selection change events won't fire when
+ * clicking on the selected element. Detect it here.
+ */
+ var me = this,
+ lastSelection = me.lastSelection,
+ valueField = me.valueField,
+ selected;
+
+ if (!me.multiSelect && lastSelection) {
+ selected = lastSelection[0];
+ if (record.get(valueField) === selected.get(valueField)) {
+ me.collapse();
+ }
+ }
+ },
+
+ onListSelectionChange: function(list, selectedRecords) {
+ var me = this;
+ // Only react to selection if it is not called from setValue, and if our list is
+ // expanded (ignores changes to the selection model triggered elsewhere)
+ if (!me.ignoreSelection && me.isExpanded) {
+ if (!me.multiSelect) {
+ Ext.defer(me.collapse, 1, me);
+ }
+ me.setValue(selectedRecords, false);
+ if (selectedRecords.length > 0) {
+ me.fireEvent('select', me, selectedRecords);
+ }
+ me.inputEl.focus();
+ }
+ },
+
+ /**
+ * @private
+ * Enables the key nav for the BoundList when it is expanded.
+ */
+ onExpand: function() {
+ var me = this,
+ keyNav = me.listKeyNav,
+ selectOnTab = me.selectOnTab,
+ picker = me.getPicker();
+
+ // Handle BoundList navigation from the input field. Insert a tab listener specially to enable selectOnTab.
+ if (keyNav) {
+ keyNav.enable();
+ } else {
+ keyNav = me.listKeyNav = Ext.create('Ext.view.BoundListKeyNav', this.inputEl, {
+ boundList: picker,
+ forceKeyDown: true,
+ tab: function(e) {
+ if (selectOnTab) {
+ this.selectHighlighted(e);
+ me.triggerBlur();
+ }
+ // Tab key event is allowed to propagate to field
+ return true;
+ }
+ });
+ }
+
+ // While list is expanded, stop tab monitoring from Ext.form.field.Trigger so it doesn't short-circuit selectOnTab
+ if (selectOnTab) {
+ me.ignoreMonitorTab = true;
+ }
+
+ Ext.defer(keyNav.enable, 1, keyNav); //wait a bit so it doesn't react to the down arrow opening the picker
+ me.inputEl.focus();
+ },
+
+ /**
+ * @private
+ * Disables the key nav for the BoundList when it is collapsed.
+ */
+ onCollapse: function() {
+ var me = this,
+ keyNav = me.listKeyNav;
+ if (keyNav) {
+ keyNav.disable();
+ me.ignoreMonitorTab = false;
+ }
+ },
+
+ /**
+ * Selects an item by a {@link Ext.data.Model Model}, or by a key value.
+ * @param r
+ */
+ select: function(r) {
+ this.setValue(r, true);
+ },
+
+ /**
+ * Find the record by searching for a specific field/value combination
+ * Returns an Ext.data.Record or false
+ * @private
+ */
+ findRecord: function(field, value) {
+ var ds = this.store,
+ idx = ds.findExact(field, value);
+ return idx !== -1 ? ds.getAt(idx) : false;
+ },
+ findRecordByValue: function(value) {
+ return this.findRecord(this.valueField, value);
+ },
+ findRecordByDisplay: function(value) {
+ return this.findRecord(this.displayField, value);
+ },
+
+ /**
+ * Sets the specified value(s) into the field. For each value, if a record is found in the {@link #store} that
+ * matches based on the {@link #valueField}, then that record's {@link #displayField} will be displayed in the
+ * field. If no match is found, and the {@link #valueNotFoundText} config option is defined, then that will be
+ * displayed as the default field text. Otherwise a blank value will be shown, although the value will still be set.
+ * @param {String|Array} value The value(s) to be set. Can be either a single String or {@link Ext.data.Model},
+ * or an Array of Strings or Models.
+ * @return {Ext.form.field.Field} this
+ */
+ setValue: function(value, doSelect) {
+ var me = this,
+ valueNotFoundText = me.valueNotFoundText,
+ inputEl = me.inputEl,
+ i, len, record,
+ models = [],
+ displayTplData = [],
+ processedValue = [];
+
+ if (me.store.loading) {
+ // Called while the Store is loading. Ensure it is processed by the onLoad method.
+ me.value = value;
+ return me;
+ }
+
+ // This method processes multi-values, so ensure value is an array.
+ value = Ext.Array.from(value);
+
+ // Loop through values
+ for (i = 0, len = value.length; i < len; i++) {
+ record = value[i];
+ if (!record || !record.isModel) {
+ record = me.findRecordByValue(record);
+ }
+ // record found, select it.
+ if (record) {
+ models.push(record);
+ displayTplData.push(record.data);
+ processedValue.push(record.get(me.valueField));
+ }
+ // record was not found, this could happen because
+ // store is not loaded or they set a value not in the store
+ else {
+ // if valueNotFoundText is defined, display it, otherwise display nothing for this value
+ if (Ext.isDefined(valueNotFoundText)) {
+ displayTplData.push(valueNotFoundText);
+ }
+ processedValue.push(value[i]);
+ }
+ }
+
+ // Set the value of this field. If we are multiselecting, then that is an array.
+ me.value = me.multiSelect ? processedValue : processedValue[0];
+ if (!Ext.isDefined(me.value)) {
+ me.value = null;
+ }
+ me.displayTplData = displayTplData; //store for getDisplayValue method
+ me.lastSelection = me.valueModels = models;
+
+ if (inputEl && me.emptyText && !Ext.isEmpty(value)) {
+ inputEl.removeCls(me.emptyCls);
+ }
+
+ // Calculate raw value from the collection of Model data
+ me.setRawValue(me.getDisplayValue());
+ me.checkChange();
+
+ if (doSelect !== false) {
+ me.syncSelection();
+ }
+ me.applyEmptyText();
+
+ return me;
+ },
+
+ /**
+ * @private Generate the string value to be displayed in the text field for the currently stored value
+ */
+ getDisplayValue: function() {
+ return this.displayTpl.apply(this.displayTplData);
+ },
+
+ getValue: function() {
+ // If the user has not changed the raw field value since a value was selected from the list,
+ // then return the structured value from the selection. If the raw field value is different
+ // than what would be displayed due to selection, return that raw value.
+ var me = this,
+ picker = me.picker,
+ rawValue = me.getRawValue(), //current value of text field
+ value = me.value; //stored value from last selection or setValue() call
+
+ if (me.getDisplayValue() !== rawValue) {
+ value = rawValue;
+ me.value = me.displayTplData = me.valueModels = null;
+ if (picker) {
+ me.ignoreSelection++;
+ picker.getSelectionModel().deselectAll();
+ me.ignoreSelection--;
+ }
+ }
+
+ return value;
+ },
+
+ getSubmitValue: function() {
+ return this.getValue();
+ },
+
+ isEqual: function(v1, v2) {
+ var fromArray = Ext.Array.from,
+ i, len;
+
+ v1 = fromArray(v1);
+ v2 = fromArray(v2);
+ len = v1.length;
+
+ if (len !== v2.length) {
+ return false;
+ }
+
+ for(i = 0; i < len; i++) {
+ if (v2[i] !== v1[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ },
+
+ /**
+ * Clears any value currently set in the ComboBox.
+ */
+ clearValue: function() {
+ this.setValue([]);
+ },
+
+ /**
+ * @private Synchronizes the selection in the picker to match the current value of the combobox.
+ */
+ syncSelection: function() {
+ var me = this,
+ ExtArray = Ext.Array,
+ picker = me.picker,
+ selection, selModel;
+ if (picker) {
+ // From the value, find the Models that are in the store's current data
+ selection = [];
+ ExtArray.forEach(me.valueModels || [], function(value) {
+ if (value && value.isModel && me.store.indexOf(value) >= 0) {
+ selection.push(value);
+ }
+ });
+
+ // Update the selection to match
+ me.ignoreSelection++;
+ selModel = picker.getSelectionModel();
+ selModel.deselectAll();
+ if (selection.length) {
+ selModel.select(selection);
+ }
+ me.ignoreSelection--;
+ }
+ }
+});
+