<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>The source code</title> <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" /> <script type="text/javascript" src="../resources/prettify/prettify.js"></script> <style type="text/css"> .highlight { display: block; background-color: #ddd; } </style> <script type="text/javascript"> function highlight() { document.getElementById(location.hash.replace(/#/, "")).className = "highlight"; } </script> </head> <body onload="prettyPrint(); highlight();"> <pre class="prettyprint lang-js"><span id='Ext-form-FieldAncestor'>/** </span> * A mixin for {@link Ext.container.Container} components that are likely to have form fields in their * items subtree. Adds the following capabilities: * * - Methods for handling the addition and removal of {@link Ext.form.Labelable} and {@link Ext.form.field.Field} * instances at any depth within the container. * - Events ({@link #fieldvaliditychange} and {@link #fielderrorchange}) for handling changes to the state * of individual fields at the container level. * - Automatic application of {@link #fieldDefaults} config properties to each field added within the * container, to facilitate uniform configuration of all fields. * * This mixin is primarily for internal use by {@link Ext.form.Panel} and {@link Ext.form.FieldContainer}, * and should not normally need to be used directly. @docauthor Jason Johnston <jason@sencha.com> */ Ext.define('Ext.form.FieldAncestor', { <span id='Ext-form-FieldAncestor-cfg-fieldDefaults'> /** </span> * @cfg {Object} fieldDefaults * If specified, the properties in this object are used as default config values for each {@link Ext.form.Labelable} * instance (e.g. {@link Ext.form.field.Base} or {@link Ext.form.FieldContainer}) that is added as a descendant of * this container. Corresponding values specified in an individual field's own configuration, or from the {@link * Ext.container.Container#defaults defaults config} of its parent container, will take precedence. See the * documentation for {@link Ext.form.Labelable} to see what config options may be specified in the fieldDefaults. * * Example: * * new Ext.form.Panel({ * fieldDefaults: { * labelAlign: 'left', * labelWidth: 100 * }, * items: [{ * xtype: 'fieldset', * defaults: { * labelAlign: 'top' * }, * items: [{ * name: 'field1' * }, { * name: 'field2' * }] * }, { * xtype: 'fieldset', * items: [{ * name: 'field3', * labelWidth: 150 * }, { * name: 'field4' * }] * }] * }); * * In this example, field1 and field2 will get labelAlign:'top' (from the fieldset's defaults) and labelWidth:100 * (from fieldDefaults), field3 and field4 will both get labelAlign:'left' (from fieldDefaults and field3 will use * the labelWidth:150 from its own config. */ <span id='Ext-form-FieldAncestor-method-initFieldAncestor'> /** </span> * Initializes the FieldAncestor's state; this must be called from the initComponent method of any components * importing this mixin. * @protected */ initFieldAncestor: function() { var me = this, onSubtreeChange = me.onFieldAncestorSubtreeChange; me.addEvents( <span id='Ext-form-FieldAncestor-event-fieldvaliditychange'> /** </span> * @event fieldvaliditychange * Fires when the validity state of any one of the {@link Ext.form.field.Field} instances within this * container changes. * @param {Ext.form.FieldAncestor} this * @param {Ext.form.Labelable} The Field instance whose validity changed * @param {String} isValid The field's new validity state */ 'fieldvaliditychange', <span id='Ext-form-FieldAncestor-event-fielderrorchange'> /** </span> * @event fielderrorchange * Fires when the active error message is changed for any one of the {@link Ext.form.Labelable} instances * within this container. * @param {Ext.form.FieldAncestor} this * @param {Ext.form.Labelable} The Labelable instance whose active error was changed * @param {String} error The active error message */ 'fielderrorchange' ); // Catch addition and removal of descendant fields me.on('add', onSubtreeChange, me); me.on('remove', onSubtreeChange, me); me.initFieldDefaults(); }, <span id='Ext-form-FieldAncestor-method-initFieldDefaults'> /** </span> * @private Initialize the {@link #fieldDefaults} object */ initFieldDefaults: function() { if (!this.fieldDefaults) { this.fieldDefaults = {}; } }, <span id='Ext-form-FieldAncestor-method-onFieldAncestorSubtreeChange'> /** </span> * @private * Handle the addition and removal of components in the FieldAncestor component's child tree. */ onFieldAncestorSubtreeChange: function(parent, child) { var me = this, isAdding = !!child.ownerCt; function handleCmp(cmp) { var isLabelable = cmp.isFieldLabelable, isField = cmp.isFormField; if (isLabelable || isField) { if (isLabelable) { me['onLabelable' + (isAdding ? 'Added' : 'Removed')](cmp); } if (isField) { me['onField' + (isAdding ? 'Added' : 'Removed')](cmp); } } else if (cmp.isContainer) { Ext.Array.forEach(cmp.getRefItems(), handleCmp); } } handleCmp(child); }, <span id='Ext-form-FieldAncestor-method-onLabelableAdded'> /** </span> * 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 * @protected */ onLabelableAdded: function(labelable) { var me = this; // buffer slightly to avoid excessive firing while sub-fields are changing en masse me.mon(labelable, 'errorchange', me.handleFieldErrorChange, me, {buffer: 10}); labelable.setFieldDefaults(me.fieldDefaults); }, <span id='Ext-form-FieldAncestor-method-onFieldAdded'> /** </span> * Called when a {@link Ext.form.field.Field} instance is added to the container's subtree. * @param {Ext.form.field.Field} field The field which was added * @protected */ onFieldAdded: function(field) { var me = this; me.mon(field, 'validitychange', me.handleFieldValidityChange, me); }, <span id='Ext-form-FieldAncestor-method-onLabelableRemoved'> /** </span> * 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 * @protected */ onLabelableRemoved: function(labelable) { var me = this; me.mun(labelable, 'errorchange', me.handleFieldErrorChange, me); }, <span id='Ext-form-FieldAncestor-method-onFieldRemoved'> /** </span> * Called when a {@link Ext.form.field.Field} instance is removed from the container's subtree. * @param {Ext.form.field.Field} field The field which was removed * @protected */ onFieldRemoved: function(field) { var me = this; me.mun(field, 'validitychange', me.handleFieldValidityChange, me); }, <span id='Ext-form-FieldAncestor-method-handleFieldValidityChange'> /** </span> * @private Handle validitychange events on sub-fields; invoke the aggregated event and method */ handleFieldValidityChange: function(field, isValid) { var me = this; me.fireEvent('fieldvaliditychange', me, field, isValid); me.onFieldValidityChange(field, isValid); }, <span id='Ext-form-FieldAncestor-method-handleFieldErrorChange'> /** </span> * @private Handle errorchange events on sub-fields; invoke the aggregated event and method */ handleFieldErrorChange: function(labelable, activeError) { var me = this; me.fireEvent('fielderrorchange', me, labelable, activeError); me.onFieldErrorChange(labelable, activeError); }, <span id='Ext-form-FieldAncestor-method-onFieldValidityChange'> /** </span> * Fired when the validity of any field within the container changes. * @param {Ext.form.field.Field} field The sub-field whose validity changed * @param {Boolean} valid The new validity state * @protected */ onFieldValidityChange: Ext.emptyFn, <span id='Ext-form-FieldAncestor-method-onFieldErrorChange'> /** </span> * Fired when the error message of any field within the container changes. * @param {Ext.form.Labelable} field The sub-field whose active error changed * @param {String} error The new active error message * @protected */ onFieldErrorChange: Ext.emptyFn });</pre> </body> </html>