shubhadownloader
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JavaScript
/**
* FieldContainer is a derivation of {@link Ext.container.Container Container} that implements the
* {@link Ext.form.Labelable Labelable} mixin. This allows it to be configured so that it is rendered with
* a {@link #fieldLabel field label} and optional {@link #msgTarget error message} around its sub-items.
* This is useful for arranging a group of fields or other components within a single item in a form, so
* that it lines up nicely with other fields. A common use is for grouping a set of related fields under
* a single label in a form.
*
* The container's configured {@link #cfg-items} will be layed out within the field body area according to the
* configured {@link #layout} type. The default layout is `'autocontainer'`.
*
* Like regular fields, FieldContainer can inherit its decoration configuration from the
* {@link Ext.form.Panel#fieldDefaults fieldDefaults} of an enclosing FormPanel. In addition,
* FieldContainer itself can pass {@link #fieldDefaults} to any {@link Ext.form.Labelable fields}
* it may itself contain.
*
* If you are grouping a set of {@link Ext.form.field.Checkbox Checkbox} or {@link Ext.form.field.Radio Radio}
* fields in a single labeled container, consider using a {@link Ext.form.CheckboxGroup}
* or {@link Ext.form.RadioGroup} instead as they are specialized for handling those types.
*
* # Example
*
* @example
* Ext.create('Ext.form.Panel', {
* title: 'FieldContainer Example',
* width: 550,
* bodyPadding: 10,
*
* items: [{
* xtype: 'fieldcontainer',
* fieldLabel: 'Last Three Jobs',
* labelWidth: 100,
*
* // The body area will contain three text fields, arranged
* // horizontally, separated by draggable splitters.
* layout: 'hbox',
* items: [{
* xtype: 'textfield',
* flex: 1
* }, {
* xtype: 'splitter'
* }, {
* xtype: 'textfield',
* flex: 1
* }, {
* xtype: 'splitter'
* }, {
* xtype: 'textfield',
* flex: 1
* }]
* }],
* renderTo: Ext.getBody()
* });
*
* # Usage of fieldDefaults
*
* @example
* Ext.create('Ext.form.Panel', {
* title: 'FieldContainer Example',
* width: 350,
* bodyPadding: 10,
*
* items: [{
* xtype: 'fieldcontainer',
* fieldLabel: 'Your Name',
* labelWidth: 75,
* defaultType: 'textfield',
*
* // Arrange fields vertically, stretched to full width
* layout: 'anchor',
* defaults: {
* layout: '100%'
* },
*
* // These config values will be applied to both sub-fields, except
* // for Last Name which will use its own msgTarget.
* fieldDefaults: {
* msgTarget: 'under',
* labelAlign: 'top'
* },
*
* items: [{
* fieldLabel: 'First Name',
* name: 'firstName'
* }, {
* fieldLabel: 'Last Name',
* name: 'lastName',
* msgTarget: 'under'
* }]
* }],
* renderTo: Ext.getBody()
* });
*
* @docauthor Jason Johnston <jason@sencha.com>
*/
Ext.define('Ext.form.FieldContainer', {
extend: 'Ext.container.Container',
mixins: {
labelable: 'Ext.form.Labelable',
fieldAncestor: 'Ext.form.FieldAncestor'
},
requires: 'Ext.layout.component.field.FieldContainer',
alias: 'widget.fieldcontainer',
componentLayout: 'fieldcontainer',
componentCls: Ext.baseCSSPrefix + 'form-fieldcontainer',
/**
* @cfg {Boolean} combineLabels
* If set to true, and there is no defined {@link #fieldLabel}, the field container will automatically
* generate its label by combining the labels of all the fields it contains. Defaults to false.
*/
combineLabels: false,
//<locale>
/**
* @cfg {String} labelConnector
* The string to use when joining the labels of individual sub-fields, when {@link #combineLabels} is
* set to true. Defaults to ', '.
*/
labelConnector: ', ',
//</locale>
/**
* @cfg {Boolean} combineErrors
* If set to true, the field container will automatically combine and display the validation errors from
* all the fields it contains as a single error on the container, according to the configured
* {@link #msgTarget}. Defaults to false.
*/
combineErrors: false,
maskOnDisable: false,
fieldSubTpl: '{%this.renderContainer(out,values)%}',
initComponent: function() {
var me = this;
// Init mixins
me.initLabelable();
me.initFieldAncestor();
me.callParent();
},
beforeRender: function(){
this.callParent(arguments);
this.beforeLabelableRender(arguments);
},
/**
* @protected Called when a {@link Ext.form.Labelable} instance is added to the container's subtree.
* @param {Ext.form.Labelable} labelable The instance that was added
*/
onLabelableAdded: function(labelable) {
var me = this;
me.mixins.fieldAncestor.onLabelableAdded.call(this, labelable);
me.updateLabel();
},
/**
* @protected Called when a {@link Ext.form.Labelable} instance is removed from the container's subtree.
* @param {Ext.form.Labelable} labelable The instance that was removed
*/
onLabelableRemoved: function(labelable) {
var me = this;
me.mixins.fieldAncestor.onLabelableRemoved.call(this, labelable);
me.updateLabel();
},
initRenderTpl: function() {
var me = this;
if (!me.hasOwnProperty('renderTpl')) {
me.renderTpl = me.getTpl('labelableRenderTpl');
}
return me.callParent();
},
initRenderData: function() {
return Ext.applyIf(this.callParent(), this.getLabelableRenderData());
},
/**
* Returns the combined field label if {@link #combineLabels} is set to true and if there is no
* set {@link #fieldLabel}. Otherwise returns the fieldLabel like normal. You can also override
* this method to provide a custom generated label.
* @template
* @return {String} The label, or empty string if none.
*/
getFieldLabel: function() {
var label = this.fieldLabel || '';
if (!label && this.combineLabels) {
label = Ext.Array.map(this.query('[isFieldLabelable]'), function(field) {
return field.getFieldLabel();
}).join(this.labelConnector);
}
return label;
},
getSubTplData: function() {
var ret = this.initRenderData();
Ext.apply(ret, this.subTplData);
return ret;
},
getSubTplMarkup: function() {
var me = this,
tpl = me.getTpl('fieldSubTpl'),
html;
if (!tpl.renderContent) {
me.setupRenderTpl(tpl);
}
html = tpl.apply(me.getSubTplData());
return html;
},
/**
* @private Updates the content of the labelEl if it is rendered
*/
updateLabel: function() {
var me = this,
label = me.labelEl;
if (label) {
me.setFieldLabel(me.getFieldLabel());
}
},
/**
* @private Fired when the error message of any field within the container changes, and updates the
* combined error message to match.
*/
onFieldErrorChange: function(field, activeError) {
if (this.combineErrors) {
var me = this,
oldError = me.getActiveError(),
invalidFields = Ext.Array.filter(me.query('[isFormField]'), function(field) {
return field.hasActiveError();
}),
newErrors = me.getCombinedErrors(invalidFields);
if (newErrors) {
me.setActiveErrors(newErrors);
} else {
me.unsetActiveError();
}
if (oldError !== me.getActiveError()) {
me.doComponentLayout();
}
}
},
/**
* Takes an Array of invalid {@link Ext.form.field.Field} objects and builds a combined list of error
* messages from them. Defaults to prepending each message by the field name and a colon. This
* can be overridden to provide custom combined error message handling, for instance changing
* the format of each message or sorting the array (it is sorted in order of appearance by default).
* @param {Ext.form.field.Field[]} invalidFields An Array of the sub-fields which are currently invalid.
* @return {String[]} The combined list of error messages
*/
getCombinedErrors: function(invalidFields) {
var errors = [],
f,
fLen = invalidFields.length,
field,
activeErrors, a, aLen,
error, label;
for (f = 0; f < fLen; f++) {
field = invalidFields[f];
activeErrors = field.getActiveErrors();
aLen = activeErrors.length;
for (a = 0; a < aLen; a++) {
error = activeErrors[a];
label = field.getFieldLabel();
errors.push((label ? label + ': ' : '') + error);
}
}
return errors;
},
getTargetEl: function() {
return this.bodyEl || this.callParent();
}
});