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18 <pre class="prettyprint lang-js"><span id='Ext-form-CheckboxGroup'>/**
19 </span> * A {@link Ext.form.FieldContainer field container} which has a specialized layout for arranging
20 * {@link Ext.form.field.Checkbox} controls into columns, and provides convenience {@link Ext.form.field.Field} methods
21 * for {@link #getValue getting}, {@link #setValue setting}, and {@link #validate validating} the group
22 * of checkboxes as a whole.
26 * Individual checkbox fields themselves have no default validation behavior, but
27 * sometimes you want to require a user to select at least one of a group of checkboxes. CheckboxGroup
28 * allows this by setting the config `{@link #allowBlank}:false`; when the user does not check at
29 * least one of the checkboxes, the entire group will be highlighted as invalid and the
30 * {@link #blankText error message} will be displayed according to the {@link #msgTarget} config.
34 * The default layout for CheckboxGroup makes it easy to arrange the checkboxes into
35 * columns; see the {@link #columns} and {@link #vertical} config documentation for details. You may also
36 * use a completely different layout by setting the {@link #layout} to one of the other supported layout
37 * types; for instance you may wish to use a custom arrangement of hbox and vbox containers. In that case
38 * the checkbox components at any depth will still be managed by the CheckboxGroup's validation.
40 * {@img Ext.form.CheckboxGroup/Ext.form.CheckboxGroup.png Ext.form.CheckboxGroup component}
44 * Ext.create('Ext.form.Panel', {
45 * title: 'Checkbox Group',
49 * renderTo: Ext.getBody(),
51 * xtype: 'checkboxgroup',
52 * fieldLabel: 'Two Columns',
53 * // Arrange radio buttons into two columns, distributed vertically
57 * {boxLabel: 'Item 1', name: 'rb', inputValue: '1'},
58 * {boxLabel: 'Item 2', name: 'rb', inputValue: '2', checked: true},
59 * {boxLabel: 'Item 3', name: 'rb', inputValue: '3'},
60 * {boxLabel: 'Item 4', name: 'rb', inputValue: '4'},
61 * {boxLabel: 'Item 5', name: 'rb', inputValue: '5'},
62 * {boxLabel: 'Item 6', name: 'rb', inputValue: '6'}
68 Ext.define('Ext.form.CheckboxGroup', {
69 extend:'Ext.form.FieldContainer',
71 field: 'Ext.form.field.Field'
73 alias: 'widget.checkboxgroup',
74 requires: ['Ext.layout.container.CheckboxGroup', 'Ext.form.field.Base'],
76 <span id='Ext-form-CheckboxGroup-cfg-name'> /**
77 </span> * @cfg {String} name
81 <span id='Ext-form-CheckboxGroup-cfg-items'> /**
82 </span> * @cfg {Array} items An Array of {@link Ext.form.field.Checkbox Checkbox}es or Checkbox config objects
83 * to arrange in the group.
86 <span id='Ext-form-CheckboxGroup-cfg-columns'> /**
87 </span> * @cfg {String/Number/Array} columns Specifies the number of columns to use when displaying grouped
88 * checkbox/radio controls using automatic layout. This config can take several types of values:
89 * <ul><li><b>'auto'</b> : <p class="sub-desc">The controls will be rendered one per column on one row and the width
90 * of each column will be evenly distributed based on the width of the overall field container. This is the default.</p></li>
91 * <li><b>Number</b> : <p class="sub-desc">If you specific a number (e.g., 3) that number of columns will be
92 * created and the contained controls will be automatically distributed based on the value of {@link #vertical}.</p></li>
93 * <li><b>Array</b> : <p class="sub-desc">You can also specify an array of column widths, mixing integer
94 * (fixed width) and float (percentage width) values as needed (e.g., [100, .25, .75]). Any integer values will
95 * be rendered first, then any float values will be calculated as a percentage of the remaining space. Float
96 * values do not have to add up to 1 (100%) although if you want the controls to take up the entire field
97 * container you should do so.</p></li></ul>
101 <span id='Ext-form-CheckboxGroup-cfg-vertical'> /**
102 </span> * @cfg {Boolean} vertical True to distribute contained controls across columns, completely filling each column
103 * top to bottom before starting on the next column. The number of controls in each column will be automatically
104 * calculated to keep columns as even as possible. The default value is false, so that controls will be added
105 * to columns one at a time, completely filling each row left to right before starting on the next row.
109 <span id='Ext-form-CheckboxGroup-cfg-allowBlank'> /**
110 </span> * @cfg {Boolean} allowBlank False to validate that at least one item in the group is checked (defaults to true).
111 * If no items are selected at validation time, {@link #blankText} will be used as the error text.
115 <span id='Ext-form-CheckboxGroup-cfg-blankText'> /**
116 </span> * @cfg {String} blankText Error text to display if the {@link #allowBlank} validation fails (defaults to "You must
117 * select at least one item in this group")
119 blankText : "You must select at least one item in this group",
122 defaultType : 'checkboxfield',
125 groupCls : Ext.baseCSSPrefix + 'form-check-group',
127 <span id='Ext-form-CheckboxGroup-cfg-fieldBodyCls'> /**
128 </span> * @cfg {String} fieldBodyCls
129 * An extra CSS class to be applied to the body content element in addition to {@link #baseBodyCls}.
130 * Defaults to 'x-form-checkboxgroup-body'.
132 fieldBodyCls: Ext.baseCSSPrefix + 'form-checkboxgroup-body',
135 layout: 'checkboxgroup',
137 initComponent: function() {
143 <span id='Ext-form-CheckboxGroup-method-initValue'> /**
145 * Initializes the field's value based on the initial config. If the {@link #value} config is specified
146 * then we use that to set the value; otherwise we initialize the originalValue by querying the values of
147 * all sub-checkboxes after they have been initialized.
149 initValue: function() {
152 me.originalValue = me.lastValue = valueCfg || me.getValue();
154 me.setValue(valueCfg);
158 <span id='Ext-form-CheckboxGroup-method-onFieldAdded'> /**
160 * When a checkbox is added to the group, monitor it for changes
162 onFieldAdded: function(field) {
164 if (field.isCheckbox) {
165 me.mon(field, 'change', me.checkChange, me);
167 me.callParent(arguments);
170 onFieldRemoved: function(field) {
172 if (field.isCheckbox) {
173 me.mun(field, 'change', me.checkChange, me);
175 me.callParent(arguments);
178 // private override - the group value is a complex object, compare using object serialization
179 isEqual: function(value1, value2) {
180 var toQueryString = Ext.Object.toQueryString;
181 return toQueryString(value1) === toQueryString(value2);
184 <span id='Ext-form-CheckboxGroup-method-getErrors'> /**
185 </span> * Runs CheckboxGroup's validations and returns an array of any errors. The only error by default
186 * is if allowBlank is set to true and no items are checked.
187 * @return {Array} Array of all validation errors
189 getErrors: function() {
191 if (!this.allowBlank && Ext.isEmpty(this.getChecked())) {
192 errors.push(this.blankText);
197 <span id='Ext-form-CheckboxGroup-method-getBoxes'> /**
198 </span> * @private Returns all checkbox components within the container
200 getBoxes: function() {
201 return this.query('[isCheckbox]');
204 <span id='Ext-form-CheckboxGroup-method-eachBox'> /**
205 </span> * @private Convenience function which calls the given function for every checkbox in the group
206 * @param {Function} fn The function to call
207 * @param {Object} scope Optional scope object
209 eachBox: function(fn, scope) {
210 Ext.Array.forEach(this.getBoxes(), fn, scope || this);
213 <span id='Ext-form-CheckboxGroup-method-getChecked'> /**
214 </span> * Returns an Array of all checkboxes in the container which are currently checked
215 * @return {Array} Array of Ext.form.field.Checkbox components
217 getChecked: function() {
218 return Ext.Array.filter(this.getBoxes(), function(cb) {
219 return cb.getValue();
225 return Ext.Array.some(this.getBoxes(), function(cb) {
231 setReadOnly: function(readOnly) {
232 this.eachBox(function(cb) {
233 cb.setReadOnly(readOnly);
235 this.readOnly = readOnly;
238 <span id='Ext-form-CheckboxGroup-method-reset'> /**
239 </span> * Resets the checked state of all {@link Ext.form.field.Checkbox checkboxes} in the group to their
240 * originally loaded values and clears any validation messages.
241 * See {@link Ext.form.Basic}.{@link Ext.form.Basic#trackResetOnLoad trackResetOnLoad}
245 hadError = me.hasActiveError(),
246 preventMark = me.preventMark;
247 me.preventMark = true;
248 me.batchChanges(function() {
249 me.eachBox(function(cb) {
253 me.preventMark = preventMark;
254 me.unsetActiveError();
256 me.doComponentLayout();
261 resetOriginalValue: function() {
262 // Defer resetting of originalValue until after all sub-checkboxes have been reset so we get
263 // the correct data from getValue()
264 Ext.defer(function() {
270 <span id='Ext-form-CheckboxGroup-method-setValue'> /**
271 </span> * <p>Sets the value(s) of all checkboxes in the group. The expected format is an Object of
272 * name-value pairs corresponding to the names of the checkboxes in the group. Each pair can
273 * have either a single or multiple values:</p>
275 * <li>A single Boolean or String value will be passed to the <code>setValue</code> method of the
276 * checkbox with that name. See the rules in {@link Ext.form.field.Checkbox#setValue} for accepted values.</li>
277 * <li>An Array of String values will be matched against the {@link Ext.form.field.Checkbox#inputValue inputValue}
278 * of checkboxes in the group with that name; those checkboxes whose inputValue exists in the array will be
279 * checked and others will be unchecked.</li>
281 * <p>If a checkbox's name is not in the mapping at all, it will be unchecked.</p>
282 * <p>An example:</p>
283 * <pre><code>var myCheckboxGroup = new Ext.form.CheckboxGroup({
296 boxLabel: 'Grouped 1'
300 boxLabel: 'Grouped 2'
304 boxLabel: 'Grouped 3'
309 myCheckboxGroup.setValue({
312 cbGroup: ['value1', 'value3']
313 });</code></pre>
314 * <p>The above code will cause the checkbox named 'cb1' to be checked, as well as the first and third
315 * checkboxes named 'cbGroup'. The other three checkboxes will be unchecked.</p>
316 * @param {Object} value The mapping of checkbox names to values.
317 * @return {Ext.form.CheckboxGroup} this
319 setValue: function(value) {
321 me.batchChanges(function() {
322 me.eachBox(function(cb) {
323 var name = cb.getName(),
325 if (value && name in value) {
326 if (Ext.isArray(value[name])) {
327 cbValue = Ext.Array.contains(value[name], cb.inputValue);
329 // single value, let the checkbox's own setValue handle conversion
330 cbValue = value[name];
333 cb.setValue(cbValue);
340 <span id='Ext-form-CheckboxGroup-method-getValue'> /**
341 </span> * <p>Returns an object containing the values of all checked checkboxes within the group. Each key-value pair
342 * in the object corresponds to a checkbox {@link Ext.form.field.Checkbox#name name}. If there is only one checked
343 * checkbox with a particular name, the value of that pair will be the String
344 * {@link Ext.form.field.Checkbox#inputValue inputValue} of that checkbox. If there are multiple checked checkboxes
345 * with that name, the value of that pair will be an Array of the selected inputValues.</p>
346 * <p>The object format returned from this method can also be passed directly to the {@link #setValue} method.</p>
347 * <p>NOTE: In Ext 3, this method returned an array of Checkbox components; this was changed to make it more
348 * consistent with other field components and with the {@link #setValue} argument signature. If you need the old
349 * behavior in Ext 4+, use the {@link #getChecked} method instead.</p>
351 getValue: function() {
353 this.eachBox(function(cb) {
354 var name = cb.getName(),
355 inputValue = cb.inputValue,
358 if (name in values) {
359 bucket = values[name];
360 if (!Ext.isArray(bucket)) {
361 bucket = values[name] = [bucket];
363 bucket.push(inputValue);
365 values[name] = inputValue;
373 * Don't return any data for submit; the form will get the info from the individual checkboxes themselves.
375 getSubmitData: function() {
380 * Don't return any data for the model; the form will get the info from the individual checkboxes themselves.
382 getModelData: function() {
386 validate: function() {
388 errors = me.getErrors(),
389 isValid = Ext.isEmpty(errors),
390 wasValid = !me.hasActiveError();
393 me.unsetActiveError();
395 me.setActiveError(errors);
397 if (isValid !== wasValid) {
398 me.fireEvent('validitychange', me, isValid);
399 me.doComponentLayout();
407 this.borrow(Ext.form.field.Base, ['markInvalid', 'clearInvalid']);