Form.js
资源名称:ext-3.0.0.zip [点击查看]
上传用户:shuoshiled
上传日期:2018-01-28
资源大小:10124k
文件大小:12k
源码类别:
中间件编程
开发平台:
JavaScript
- /*!
- * Ext JS Library 3.0.0
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
- /**
- * @class Ext.form.FormPanel
- * @extends Ext.Panel
- * <p>Standard form container.</p>
- *
- * <p><b><u>Layout</u></b></p>
- * <p>By default, FormPanel is configured with <tt>layout:'form'</tt> to use an {@link Ext.layout.FormLayout}
- * layout manager, which styles and renders fields and labels correctly. When nesting additional Containers
- * within a FormPanel, you should ensure that any descendant Containers which host input Fields use the
- * {@link Ext.layout.FormLayout} layout manager.</p>
- *
- * <p><b><u>BasicForm</u></b></p>
- * <p>Although <b>not listed</b> as configuration options of FormPanel, the FormPanel class accepts all
- * of the config options required to configure its internal {@link Ext.form.BasicForm} for:
- * <div class="mdetail-params"><ul>
- * <li>{@link Ext.form.BasicForm#fileUpload file uploads}</li>
- * <li>functionality for {@link Ext.form.BasicForm#doAction loading, validating and submitting} the form</li>
- * </ul></div>
- *
- * <p><b>Note</b>: If subclassing FormPanel, any configuration options for the BasicForm must be applied to
- * the <tt><b>initialConfig</b></tt> property of the FormPanel. Applying {@link Ext.form.BasicForm BasicForm}
- * configuration settings to <b><tt>this</tt></b> will <b>not</b> affect the BasicForm's configuration.</p>
- *
- * <p><b><u>Form Validation</u></b></p>
- * <p>For information on form validation see the following:</p>
- * <div class="mdetail-params"><ul>
- * <li>{@link Ext.form.TextField}</li>
- * <li>{@link Ext.form.VTypes}</li>
- * <li>{@link Ext.form.BasicForm#doAction BasicForm.doAction <b>clientValidation</b> notes}</li>
- * <li><tt>{@link Ext.form.FormPanel#monitorValid monitorValid}</tt></li>
- * </ul></div>
- *
- * <p><b><u>Form Submission</u></b></p>
- * <p>By default, Ext Forms are submitted through Ajax, using {@link Ext.form.Action}. To enable normal browser
- * submission of the {@link Ext.form.BasicForm BasicForm} contained in this FormPanel, see the
- * <tt><b>{@link Ext.form.BasicForm#standardSubmit standardSubmit}</b></tt> option.</p>
- *
- * @constructor
- * @param {Object} config Configuration options
- * @xtype form
- */
- Ext.FormPanel = Ext.extend(Ext.Panel, {
- /**
- * @cfg {String} formId (optional) The id of the FORM tag (defaults to an auto-generated id).
- */
- /**
- * @cfg {Boolean} hideLabels
- * <p><tt>true</tt> to hide field labels by default (sets <tt>display:none</tt>). Defaults to
- * <tt>false</tt>.</p>
- * <p>Also see {@link Ext.Component}.<tt>{@link Ext.Component#hideLabel hideLabel}</tt>.
- */
- /**
- * @cfg {Number} labelPad
- * The default padding in pixels for field labels (defaults to <tt>5</tt>). <tt>labelPad</tt> only
- * applies if <tt>{@link #labelWidth}</tt> is also specified, otherwise it will be ignored.
- */
- /**
- * @cfg {String} labelSeparator
- * See {@link Ext.Component}.<tt>{@link Ext.Component#labelSeparator labelSeparator}</tt>
- */
- /**
- * @cfg {Number} labelWidth The width of labels in pixels. This property cascades to child containers
- * and can be overridden on any child container (e.g., a fieldset can specify a different <tt>labelWidth</tt>
- * for its fields) (defaults to <tt>100</tt>).
- */
- /**
- * @cfg {String} itemCls A css class to apply to the x-form-item of fields. This property cascades to child containers.
- */
- /**
- * @cfg {Array} buttons
- * An array of {@link Ext.Button}s or {@link Ext.Button} configs used to add buttons to the footer of this FormPanel.<br>
- * <p>Buttons in the footer of a FormPanel may be configured with the option <tt>formBind: true</tt>. This causes
- * the form's {@link #monitorValid valid state monitor task} to enable/disable those Buttons depending on
- * the form's valid/invalid state.</p>
- */
- /**
- * @cfg {Number} minButtonWidth Minimum width of all buttons in pixels (defaults to <tt>75</tt>).
- */
- minButtonWidth : 75,
- /**
- * @cfg {String} labelAlign The label alignment value used for the <tt>text-align</tt> specification
- * for the <b>container</b>. Valid values are <tt>"left</tt>", <tt>"top"</tt> or <tt>"right"</tt>
- * (defaults to <tt>"left"</tt>). This property cascades to child <b>containers</b> and can be
- * overridden on any child <b>container</b> (e.g., a fieldset can specify a different <tt>labelAlign</tt>
- * for its fields).
- */
- labelAlign : 'left',
- /**
- * @cfg {Boolean} monitorValid If <tt>true</tt>, the form monitors its valid state <b>client-side</b> and
- * regularly fires the {@link #clientvalidation} event passing that state.<br>
- * <p>When monitoring valid state, the FormPanel enables/disables any of its configured
- * {@link #buttons} which have been configured with <code>formBind: true</code> depending
- * on whether the {@link Ext.form.BasicForm#isValid form is valid} or not. Defaults to <tt>false</tt></p>
- */
- monitorValid : false,
- /**
- * @cfg {Number} monitorPoll The milliseconds to poll valid state, ignored if monitorValid is not true (defaults to 200)
- */
- monitorPoll : 200,
- /**
- * @cfg {String} layout Defaults to <tt>'form'</tt>. Normally this configuration property should not be altered.
- * For additional details see {@link Ext.layout.FormLayout} and {@link Ext.Container#layout Ext.Container.layout}.
- */
- layout : 'form',
- // private
- initComponent : function(){
- this.form = this.createForm();
- Ext.FormPanel.superclass.initComponent.call(this);
- this.bodyCfg = {
- tag: 'form',
- cls: this.baseCls + '-body',
- method : this.method || 'POST',
- id : this.formId || Ext.id()
- };
- if(this.fileUpload) {
- this.bodyCfg.enctype = 'multipart/form-data';
- }
- this.initItems();
- this.addEvents(
- /**
- * @event clientvalidation
- * If the monitorValid config option is true, this event fires repetitively to notify of valid state
- * @param {Ext.form.FormPanel} this
- * @param {Boolean} valid true if the form has passed client-side validation
- */
- 'clientvalidation'
- );
- this.relayEvents(this.form, ['beforeaction', 'actionfailed', 'actioncomplete']);
- },
- // private
- createForm : function(){
- var config = Ext.applyIf({listeners: {}}, this.initialConfig);
- return new Ext.form.BasicForm(null, config);
- },
- // private
- initFields : function(){
- var f = this.form;
- var formPanel = this;
- var fn = function(c){
- if(formPanel.isField(c)){
- f.add(c);
- }if(c.isFieldWrap){
- Ext.applyIf(c, {
- labelAlign: c.ownerCt.labelAlign,
- labelWidth: c.ownerCt.labelWidth,
- itemCls: c.ownerCt.itemCls
- });
- f.add(c.field);
- }else if(c.doLayout && c != formPanel){
- Ext.applyIf(c, {
- labelAlign: c.ownerCt.labelAlign,
- labelWidth: c.ownerCt.labelWidth,
- itemCls: c.ownerCt.itemCls
- });
- //each check required for check/radio groups.
- if(c.items && c.items.each){
- c.items.each(fn, this);
- }
- }
- };
- this.items.each(fn, this);
- },
- // private
- getLayoutTarget : function(){
- return this.form.el;
- },
- /**
- * Provides access to the {@link Ext.form.BasicForm Form} which this Panel contains.
- * @return {Ext.form.BasicForm} The {@link Ext.form.BasicForm Form} which this Panel contains.
- */
- getForm : function(){
- return this.form;
- },
- // private
- onRender : function(ct, position){
- this.initFields();
- Ext.FormPanel.superclass.onRender.call(this, ct, position);
- this.form.initEl(this.body);
- },
- // private
- beforeDestroy : function(){
- this.stopMonitoring();
- Ext.FormPanel.superclass.beforeDestroy.call(this);
- /*
- * Clear the items here to prevent them being destroyed again.
- * Don't move this behaviour to BasicForm because it can be used
- * on it's own.
- */
- this.form.items.clear();
- Ext.destroy(this.form);
- },
- // Determine if a Component is usable as a form Field.
- isField : function(c) {
- return !!c.setValue && !!c.getValue && !!c.markInvalid && !!c.clearInvalid;
- },
- // private
- initEvents : function(){
- Ext.FormPanel.superclass.initEvents.call(this);
- this.on('remove', this.onRemove, this);
- this.on('add', this.onAdd, this);
- if(this.monitorValid){ // initialize after render
- this.startMonitoring();
- }
- },
- // private
- onAdd : function(ct, c) {
- // If a single form Field, add it
- if (this.isField(c)) {
- this.form.add(c);
- // If a Container, add any Fields it might contain
- } else if (c.findBy) {
- Ext.applyIf(c, {
- labelAlign: c.ownerCt.labelAlign,
- labelWidth: c.ownerCt.labelWidth,
- itemCls: c.ownerCt.itemCls
- });
- this.form.add.apply(this.form, c.findBy(this.isField));
- }
- },
- // private
- onRemove : function(ct, c) {
- // If a single form Field, remove it
- if (this.isField(c)) {
- Ext.destroy(c.container.up('.x-form-item'));
- this.form.remove(c);
- // If a Container, remove any Fields it might contain
- } else if (c.findByType) {
- Ext.each(c.findBy(this.isField), this.form.remove, this.form);
- }
- },
- /**
- * Starts monitoring of the valid state of this form. Usually this is done by passing the config
- * option "monitorValid"
- */
- startMonitoring : function(){
- if(!this.validTask){
- this.validTask = new Ext.util.TaskRunner();
- this.validTask.start({
- run : this.bindHandler,
- interval : this.monitorPoll || 200,
- scope: this
- });
- }
- },
- /**
- * Stops monitoring of the valid state of this form
- */
- stopMonitoring : function(){
- if(this.validTask){
- this.validTask.stopAll();
- this.validTask = null;
- }
- },
- /**
- * This is a proxy for the underlying BasicForm's {@link Ext.form.BasicForm#load} call.
- * @param {Object} options The options to pass to the action (see {@link Ext.form.BasicForm#doAction} for details)
- */
- load : function(){
- this.form.load.apply(this.form, arguments);
- },
- // private
- onDisable : function(){
- Ext.FormPanel.superclass.onDisable.call(this);
- if(this.form){
- this.form.items.each(function(){
- this.disable();
- });
- }
- },
- // private
- onEnable : function(){
- Ext.FormPanel.superclass.onEnable.call(this);
- if(this.form){
- this.form.items.each(function(){
- this.enable();
- });
- }
- },
- // private
- bindHandler : function(){
- var valid = true;
- this.form.items.each(function(f){
- if(!f.isValid(true)){
- valid = false;
- return false;
- }
- });
- if(this.fbar){
- var fitems = this.fbar.items.items;
- for(var i = 0, len = fitems.length; i < len; i++){
- var btn = fitems[i];
- if(btn.formBind === true && btn.disabled === valid){
- btn.setDisabled(!valid);
- }
- }
- }
- this.fireEvent('clientvalidation', this, valid);
- }
- });
- Ext.reg('form', Ext.FormPanel);
- Ext.form.FormPanel = Ext.FormPanel;