Field.js
资源名称:ext-3.0.0.zip [点击查看]
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上传日期:2018-01-28
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文件大小:21k
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.Field
- * @extends Ext.BoxComponent
- * Base class for form fields that provides default event handling, sizing, value handling and other functionality.
- * @constructor
- * Creates a new Field
- * @param {Object} config Configuration options
- * @xtype field
- */
- Ext.form.Field = Ext.extend(Ext.BoxComponent, {
- /**
- * @cfg {String} inputType The type attribute for input fields -- e.g. radio, text, password, file (defaults
- * to "text"). The types "file" and "password" must be used to render those field types currently -- there are
- * no separate Ext components for those. Note that if you use <tt>inputType:'file'</tt>, {@link #emptyText}
- * is not supported and should be avoided.
- */
- /**
- * @cfg {Number} tabIndex The tabIndex for this field. Note this only applies to fields that are rendered,
- * not those which are built via applyTo (defaults to undefined).
- */
- /**
- * @cfg {Mixed} value A value to initialize this field with (defaults to undefined).
- */
- /**
- * @cfg {String} name The field's HTML name attribute (defaults to "").
- * <b>Note</b>: this property must be set if this field is to be automatically included with
- * {@link Ext.form.BasicForm#submit form submit()}.
- */
- /**
- * @cfg {String} cls A custom CSS class to apply to the field's underlying element (defaults to "").
- */
- /**
- * @cfg {String} invalidClass The CSS class to use when marking a field invalid (defaults to "x-form-invalid")
- */
- invalidClass : "x-form-invalid",
- /**
- * @cfg {String} invalidText The error text to use when marking a field invalid and no message is provided
- * (defaults to "The value in this field is invalid")
- */
- invalidText : "The value in this field is invalid",
- /**
- * @cfg {String} focusClass The CSS class to use when the field receives focus (defaults to "x-form-focus")
- */
- focusClass : "x-form-focus",
- /**
- * @cfg {String/Boolean} validationEvent The event that should initiate field validation. Set to false to disable
- automatic validation (defaults to "keyup").
- */
- validationEvent : "keyup",
- /**
- * @cfg {Boolean} validateOnBlur Whether the field should validate when it loses focus (defaults to true).
- */
- validateOnBlur : true,
- /**
- * @cfg {Number} validationDelay The length of time in milliseconds after user input begins until validation
- * is initiated (defaults to 250)
- */
- validationDelay : 250,
- /**
- * @cfg {String/Object} autoCreate <p>A {@link Ext.DomHelper DomHelper} element spec, or true for a default
- * element spec. Used to create the {@link Ext.Component#getEl Element} which will encapsulate this Component.
- * See <tt>{@link Ext.Component#autoEl autoEl}</tt> for details. Defaults to:</p>
- * <pre><code>{tag: "input", type: "text", size: "20", autocomplete: "off"}</code></pre>
- */
- defaultAutoCreate : {tag: "input", type: "text", size: "20", autocomplete: "off"},
- /**
- * @cfg {String} fieldClass The default CSS class for the field (defaults to "x-form-field")
- */
- fieldClass : "x-form-field",
- /**
- * @cfg {String} msgTarget The location where error text should display. Should be one of the following values
- * (defaults to 'qtip'):
- *<pre>
- Value Description
- ----------- ----------------------------------------------------------------------
- qtip Display a quick tip when the user hovers over the field
- title Display a default browser title attribute popup
- under Add a block div beneath the field containing the error text
- side Add an error icon to the right of the field with a popup on hover
- [element id] Add the error text directly to the innerHTML of the specified element
- </pre>
- */
- msgTarget : 'qtip',
- /**
- * @cfg {String} msgFx <b>Experimental</b> The effect used when displaying a validation message under the field
- * (defaults to 'normal').
- */
- msgFx : 'normal',
- /**
- * @cfg {Boolean} readOnly <tt>true</tt> to mark the field as readOnly in HTML
- * (defaults to <tt>false</tt>).
- * <br><p><b>Note</b>: this only sets the element's readOnly DOM attribute.
- * Setting <code>readOnly=true</code>, for example, will not disable triggering a
- * ComboBox or DateField; it gives you the option of forcing the user to choose
- * via the trigger without typing in the text box. To hide the trigger use
- * <code>{@link Ext.form.TriggerField#hideTrigger hideTrigger}</code>.</p>
- */
- readOnly : false,
- /**
- * @cfg {Boolean} disabled True to disable the field (defaults to false).
- * <p>Be aware that conformant with the <a href="http://www.w3.org/TR/html401/interact/forms.html#h-17.12.1">HTML specification</a>,
- * disabled Fields will not be {@link Ext.form.BasicForm#submit submitted}.</p>
- */
- disabled : false,
- // private
- isFormField : true,
- // private
- hasFocus : false,
- // private
- initComponent : function(){
- Ext.form.Field.superclass.initComponent.call(this);
- this.addEvents(
- /**
- * @event focus
- * Fires when this field receives input focus.
- * @param {Ext.form.Field} this
- */
- 'focus',
- /**
- * @event blur
- * Fires when this field loses input focus.
- * @param {Ext.form.Field} this
- */
- 'blur',
- /**
- * @event specialkey
- * Fires when any key related to navigation (arrows, tab, enter, esc, etc.) is pressed.
- * To handle other keys see {@link Ext.Panel#keys} or {@link Ext.KeyMap}.
- * You can check {@link Ext.EventObject#getKey} to determine which key was pressed.
- * For example: <pre><code>
- var form = new Ext.form.FormPanel({
- ...
- items: [{
- fieldLabel: 'Field 1',
- name: 'field1',
- allowBlank: false
- },{
- fieldLabel: 'Field 2',
- name: 'field2',
- listeners: {
- specialkey: function(field, e){
- // e.HOME, e.END, e.PAGE_UP, e.PAGE_DOWN,
- // e.TAB, e.ESC, arrow keys: e.LEFT, e.RIGHT, e.UP, e.DOWN
- if (e.{@link Ext.EventObject#getKey getKey()} == e.ENTER) {
- var form = field.ownerCt.getForm();
- form.submit();
- }
- }
- }
- }
- ],
- ...
- });
- * </code></pre>
- * @param {Ext.form.Field} this
- * @param {Ext.EventObject} e The event object
- */
- 'specialkey',
- /**
- * @event change
- * Fires just before the field blurs if the field value has changed.
- * @param {Ext.form.Field} this
- * @param {Mixed} newValue The new value
- * @param {Mixed} oldValue The original value
- */
- 'change',
- /**
- * @event invalid
- * Fires after the field has been marked as invalid.
- * @param {Ext.form.Field} this
- * @param {String} msg The validation message
- */
- 'invalid',
- /**
- * @event valid
- * Fires after the field has been validated with no errors.
- * @param {Ext.form.Field} this
- */
- 'valid'
- );
- },
- /**
- * Returns the {@link Ext.form.Field#name name} or {@link Ext.form.ComboBox#hiddenName hiddenName}
- * attribute of the field if available.
- * @return {String} name The field {@link Ext.form.Field#name name} or {@link Ext.form.ComboBox#hiddenName hiddenName}
- */
- getName: function(){
- return this.rendered && this.el.dom.name ? this.el.dom.name : this.name || this.id || '';
- },
- // private
- onRender : function(ct, position){
- if(!this.el){
- var cfg = this.getAutoCreate();
- if(!cfg.name){
- cfg.name = this.name || this.id;
- }
- if(this.inputType){
- cfg.type = this.inputType;
- }
- this.autoEl = cfg;
- }
- Ext.form.Field.superclass.onRender.call(this, ct, position);
- var type = this.el.dom.type;
- if(type){
- if(type == 'password'){
- type = 'text';
- }
- this.el.addClass('x-form-'+type);
- }
- if(this.readOnly){
- this.el.dom.readOnly = true;
- }
- if(this.tabIndex !== undefined){
- this.el.dom.setAttribute('tabIndex', this.tabIndex);
- }
- this.el.addClass([this.fieldClass, this.cls]);
- },
- // private
- getItemCt : function(){
- return this.el.up('.x-form-item', 4);
- },
- // private
- initValue : function(){
- if(this.value !== undefined){
- this.setValue(this.value);
- }else if(!Ext.isEmpty(this.el.dom.value) && this.el.dom.value != this.emptyText){
- this.setValue(this.el.dom.value);
- }
- /**
- * The original value of the field as configured in the {@link #value} configuration, or
- * as loaded by the last form load operation if the form's {@link Ext.form.BasicForm#trackResetOnLoad trackResetOnLoad}
- * setting is <code>true</code>.
- * @type mixed
- * @property originalValue
- */
- this.originalValue = this.getValue();
- },
- /**
- * <p>Returns true if the value of this Field has been changed from its original value.
- * Will return false if the field is disabled or has not been rendered yet.</p>
- * <p>Note that if the owning {@link Ext.form.BasicForm form} was configured with
- * {@link Ext.form.BasicForm}.{@link Ext.form.BasicForm#trackResetOnLoad trackResetOnLoad}
- * then the <i>original value</i> is updated when the values are loaded by
- * {@link Ext.form.BasicForm}.{@link Ext.form.BasicForm#setValues setValues}.</p>
- * @return {Boolean} True if this field has been changed from its original value (and
- * is not disabled), false otherwise.
- */
- isDirty : function() {
- if(this.disabled || !this.rendered) {
- return false;
- }
- return String(this.getValue()) !== String(this.originalValue);
- },
- // private
- afterRender : function(){
- Ext.form.Field.superclass.afterRender.call(this);
- this.initEvents();
- this.initValue();
- },
- // private
- fireKey : function(e){
- if(e.isSpecialKey()){
- this.fireEvent("specialkey", this, e);
- }
- },
- /**
- * Resets the current field value to the originally loaded value and clears any validation messages.
- * See {@link Ext.form.BasicForm}.{@link Ext.form.BasicForm#trackResetOnLoad trackResetOnLoad}
- */
- reset : function(){
- this.setValue(this.originalValue);
- this.clearInvalid();
- },
- // private
- initEvents : function(){
- this.mon(this.el, Ext.EventManager.useKeydown ? "keydown" : "keypress", this.fireKey, this);
- this.mon(this.el, 'focus', this.onFocus, this);
- // fix weird FF/Win editor issue when changing OS window focus
- var o = this.inEditor && Ext.isWindows && Ext.isGecko ? {buffer:10} : null;
- this.mon(this.el, 'blur', this.onBlur, this, o);
- },
- // private
- onFocus : function(){
- if(this.focusClass){
- this.el.addClass(this.focusClass);
- }
- if(!this.hasFocus){
- this.hasFocus = true;
- this.startValue = this.getValue();
- this.fireEvent("focus", this);
- }
- },
- // private
- beforeBlur : Ext.emptyFn,
- // private
- onBlur : function(){
- this.beforeBlur();
- if(this.focusClass){
- this.el.removeClass(this.focusClass);
- }
- this.hasFocus = false;
- if(this.validationEvent !== false && this.validateOnBlur && this.validationEvent != "blur"){
- this.validate();
- }
- var v = this.getValue();
- if(String(v) !== String(this.startValue)){
- this.fireEvent('change', this, v, this.startValue);
- }
- this.fireEvent("blur", this);
- },
- /**
- * Returns whether or not the field value is currently valid
- * @param {Boolean} preventMark True to disable marking the field invalid
- * @return {Boolean} True if the value is valid, else false
- */
- isValid : function(preventMark){
- if(this.disabled){
- return true;
- }
- var restore = this.preventMark;
- this.preventMark = preventMark === true;
- var v = this.validateValue(this.processValue(this.getRawValue()));
- this.preventMark = restore;
- return v;
- },
- /**
- * Validates the field value
- * @return {Boolean} True if the value is valid, else false
- */
- validate : function(){
- if(this.disabled || this.validateValue(this.processValue(this.getRawValue()))){
- this.clearInvalid();
- return true;
- }
- return false;
- },
- // protected - should be overridden by subclasses if necessary to prepare raw values for validation
- processValue : function(value){
- return value;
- },
- // private
- // Subclasses should provide the validation implementation by overriding this
- validateValue : function(value){
- return true;
- },
- /**
- * Mark this field as invalid, using {@link #msgTarget} to determine how to display the error and
- * applying {@link #invalidClass} to the field's element.
- * @param {String} msg (optional) The validation message (defaults to {@link #invalidText})
- */
- markInvalid : function(msg){
- if(!this.rendered || this.preventMark){ // not rendered
- return;
- }
- msg = msg || this.invalidText;
- var mt = this.getMessageHandler();
- if(mt){
- mt.mark(this, msg);
- }else if(this.msgTarget){
- this.el.addClass(this.invalidClass);
- var t = Ext.getDom(this.msgTarget);
- if(t){
- t.innerHTML = msg;
- t.style.display = this.msgDisplay;
- }
- }
- this.fireEvent('invalid', this, msg);
- },
- /**
- * Clear any invalid styles/messages for this field
- */
- clearInvalid : function(){
- if(!this.rendered || this.preventMark){ // not rendered
- return;
- }
- this.el.removeClass(this.invalidClass);
- var mt = this.getMessageHandler();
- if(mt){
- mt.clear(this);
- }else if(this.msgTarget){
- this.el.removeClass(this.invalidClass);
- var t = Ext.getDom(this.msgTarget);
- if(t){
- t.innerHTML = '';
- t.style.display = 'none';
- }
- }
- this.fireEvent('valid', this);
- },
- // private
- getMessageHandler : function(){
- return Ext.form.MessageTargets[this.msgTarget];
- },
- // private
- getErrorCt : function(){
- return this.el.findParent('.x-form-element', 5, true) || // use form element wrap if available
- this.el.findParent('.x-form-field-wrap', 5, true); // else direct field wrap
- },
- // private
- alignErrorIcon : function(){
- this.errorIcon.alignTo(this.el, 'tl-tr', [2, 0]);
- },
- /**
- * Returns the raw data value which may or may not be a valid, defined value. To return a normalized value see {@link #getValue}.
- * @return {Mixed} value The field value
- */
- getRawValue : function(){
- var v = this.rendered ? this.el.getValue() : Ext.value(this.value, '');
- if(v === this.emptyText){
- v = '';
- }
- return v;
- },
- /**
- * Returns the normalized data value (undefined or emptyText will be returned as ''). To return the raw value see {@link #getRawValue}.
- * @return {Mixed} value The field value
- */
- getValue : function(){
- if(!this.rendered) {
- return this.value;
- }
- var v = this.el.getValue();
- if(v === this.emptyText || v === undefined){
- v = '';
- }
- return v;
- },
- /**
- * Sets the underlying DOM field's value directly, bypassing validation. To set the value with validation see {@link #setValue}.
- * @param {Mixed} value The value to set
- * @return {Mixed} value The field value that is set
- */
- setRawValue : function(v){
- return (this.el.dom.value = (Ext.isEmpty(v) ? '' : v));
- },
- /**
- * Sets a data value into the field and validates it. To set the value directly without validation see {@link #setRawValue}.
- * @param {Mixed} value The value to set
- * @return {Ext.form.Field} this
- */
- setValue : function(v){
- this.value = v;
- if(this.rendered){
- this.el.dom.value = (Ext.isEmpty(v) ? '' : v);
- this.validate();
- }
- return this;
- },
- // private, does not work for all fields
- append : function(v){
- this.setValue([this.getValue(), v].join(''));
- },
- // private
- adjustSize : function(w, h){
- var s = Ext.form.Field.superclass.adjustSize.call(this, w, h);
- s.width = this.adjustWidth(this.el.dom.tagName, s.width);
- if(this.offsetCt){
- var ct = this.getItemCt();
- s.width -= ct.getFrameWidth('lr');
- s.height -= ct.getFrameWidth('tb');
- }
- return s;
- },
- // private
- adjustWidth : function(tag, w){
- if(typeof w == 'number' && (Ext.isIE && (Ext.isIE6 || !Ext.isStrict)) && /input|textarea/i.test(tag) && !this.inEditor){
- return w - 3;
- }
- return w;
- }
- /**
- * @cfg {Boolean} autoWidth @hide
- */
- /**
- * @cfg {Boolean} autoHeight @hide
- */
- /**
- * @cfg {String} autoEl @hide
- */
- });
- Ext.form.MessageTargets = {
- 'qtip' : {
- mark: function(field, msg){
- field.el.addClass(field.invalidClass);
- field.el.dom.qtip = msg;
- field.el.dom.qclass = 'x-form-invalid-tip';
- if(Ext.QuickTips){ // fix for floating editors interacting with DND
- Ext.QuickTips.enable();
- }
- },
- clear: function(field){
- field.el.removeClass(field.invalidClass);
- field.el.dom.qtip = '';
- }
- },
- 'title' : {
- mark: function(field, msg){
- field.el.addClass(field.invalidClass);
- field.el.dom.title = msg;
- },
- clear: function(field){
- field.el.dom.title = '';
- }
- },
- 'under' : {
- mark: function(field, msg){
- field.el.addClass(field.invalidClass);
- if(!field.errorEl){
- var elp = field.getErrorCt();
- if(!elp){ // field has no container el
- field.el.dom.title = msg;
- return;
- }
- field.errorEl = elp.createChild({cls:'x-form-invalid-msg'});
- field.errorEl.setWidth(elp.getWidth(true)-20);
- }
- field.errorEl.update(msg);
- Ext.form.Field.msgFx[field.msgFx].show(field.errorEl, field);
- },
- clear: function(field){
- field.el.removeClass(field.invalidClass);
- if(field.errorEl){
- Ext.form.Field.msgFx[field.msgFx].hide(field.errorEl, field);
- }else{
- field.el.dom.title = '';
- }
- }
- },
- 'side' : {
- mark: function(field, msg){
- field.el.addClass(field.invalidClass);
- if(!field.errorIcon){
- var elp = field.getErrorCt();
- if(!elp){ // field has no container el
- field.el.dom.title = msg;
- return;
- }
- field.errorIcon = elp.createChild({cls:'x-form-invalid-icon'});
- }
- field.alignErrorIcon();
- field.errorIcon.dom.qtip = msg;
- field.errorIcon.dom.qclass = 'x-form-invalid-tip';
- field.errorIcon.show();
- field.on('resize', field.alignErrorIcon, field);
- },
- clear: function(field){
- field.el.removeClass(field.invalidClass);
- if(field.errorIcon){
- field.errorIcon.dom.qtip = '';
- field.errorIcon.hide();
- field.un('resize', field.alignErrorIcon, field);
- }else{
- field.el.dom.title = '';
- }
- }
- }
- };
- // anything other than normal should be considered experimental
- Ext.form.Field.msgFx = {
- normal : {
- show: function(msgEl, f){
- msgEl.setDisplayed('block');
- },
- hide : function(msgEl, f){
- msgEl.setDisplayed(false).update('');
- }
- },
- slide : {
- show: function(msgEl, f){
- msgEl.slideIn('t', {stopFx:true});
- },
- hide : function(msgEl, f){
- msgEl.slideOut('t', {stopFx:true,useDisplay:true});
- }
- },
- slideRight : {
- show: function(msgEl, f){
- msgEl.fixDisplay();
- msgEl.alignTo(f.el, 'tl-tr');
- msgEl.slideIn('l', {stopFx:true});
- },
- hide : function(msgEl, f){
- msgEl.slideOut('l', {stopFx:true,useDisplay:true});
- }
- }
- };
- Ext.reg('field', Ext.form.Field);