shubhadownloader
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JavaScript
/**
* @docauthor Jason Johnston <jason@sencha.com>
*
* Base class for form fields that provides default event handling, rendering, and other common functionality
* needed by all form field types. Utilizes the {@link Ext.form.field.Field} mixin for value handling and validation,
* and the {@link Ext.form.Labelable} mixin to provide label and error message display.
*
* In most cases you will want to use a subclass, such as {@link Ext.form.field.Text} or {@link Ext.form.field.Checkbox},
* rather than creating instances of this class directly. However if you are implementing a custom form field,
* using this as the parent class is recommended.
*
* # Values and Conversions
*
* Because Base implements the Field mixin, it has a main value that can be initialized with the
* {@link #value} config and manipulated via the {@link #getValue} and {@link #setValue} methods. This main
* value can be one of many data types appropriate to the current field, for instance a {@link Ext.form.field.Date Date}
* field would use a JavaScript Date object as its value type. However, because the field is rendered as a HTML
* input, this value data type can not always be directly used in the rendered field.
*
* Therefore Base introduces the concept of a "raw value". This is the value of the rendered HTML input field,
* and is normally a String. The {@link #getRawValue} and {@link #setRawValue} methods can be used to directly
* work with the raw value, though it is recommended to use getValue and setValue in most cases.
*
* Conversion back and forth between the main value and the raw value is handled by the {@link #valueToRaw} and
* {@link #rawToValue} methods. If you are implementing a subclass that uses a non-String value data type, you
* should override these methods to handle the conversion.
*
* # Rendering
*
* The content of the field body is defined by the {@link #fieldSubTpl} XTemplate, with its argument data
* created by the {@link #getSubTplData} method. Override this template and/or method to create custom
* field renderings.
*
* # Example usage:
*
* @example
* // A simple subclass of Base that creates a HTML5 search field. Redirects to the
* // searchUrl when the Enter key is pressed.222
* Ext.define('Ext.form.SearchField', {
* extend: 'Ext.form.field.Base',
* alias: 'widget.searchfield',
*
* inputType: 'search',
*
* // Config defining the search URL
* searchUrl: 'http://www.google.com/search?q={0}',
*
* // Add specialkey listener
* initComponent: function() {
* this.callParent();
* this.on('specialkey', this.checkEnterKey, this);
* },
*
* // Handle enter key presses, execute the search if the field has a value
* checkEnterKey: function(field, e) {
* var value = this.getValue();
* if (e.getKey() === e.ENTER && !Ext.isEmpty(value)) {
* location.href = Ext.String.format(this.searchUrl, value);
* }
* }
* });
*
* Ext.create('Ext.form.Panel', {
* title: 'Base Example',
* bodyPadding: 5,
* width: 250,
*
* // Fields will be arranged vertically, stretched to full width
* layout: 'anchor',
* defaults: {
* anchor: '100%'
* },
* items: [{
* xtype: 'searchfield',
* fieldLabel: 'Search',
* name: 'query'
* }],
* renderTo: Ext.getBody()
* });
*/
Ext.define('Ext.form.field.Base', {
extend: 'Ext.Component',
mixins: {
labelable: 'Ext.form.Labelable',
field: 'Ext.form.field.Field'
},
alias: 'widget.field',
alternateClassName: ['Ext.form.Field', 'Ext.form.BaseField'],
requires: ['Ext.util.DelayedTask', 'Ext.XTemplate', 'Ext.layout.component.field.Field'],
/**
* @cfg {Ext.XTemplate} fieldSubTpl
* The content of the field body is defined by this config option.
* @private
*/
fieldSubTpl: [ // note: {id} here is really {inputId}, but {cmpId} is available
'<input id="{id}" type="{type}" {inputAttrTpl}',
' size="1"', // allows inputs to fully respect CSS widths across all browsers
'<tpl if="name"> name="{name}"</tpl>',
'<tpl if="value"> value="{[Ext.util.Format.htmlEncode(values.value)]}"</tpl>',
'<tpl if="placeholder"> placeholder="{placeholder}"</tpl>',
'{%if (values.maxLength !== undefined){%} maxlength="{maxLength}"{%}%}',
'<tpl if="readOnly"> readonly="readonly"</tpl>',
'<tpl if="disabled"> disabled="disabled"</tpl>',
'<tpl if="tabIdx"> tabIndex="{tabIdx}"</tpl>',
'<tpl if="fieldStyle"> style="{fieldStyle}"</tpl>',
' class="{fieldCls} {typeCls} {editableCls}" autocomplete="off"/>',
{
disableFormats: true
}
],
subTplInsertions: [
/**
* @cfg {String/Array/Ext.XTemplate} inputAttrTpl
* An optional string or `XTemplate` configuration to insert in the field markup
* inside the input element (as attributes). If an `XTemplate` is used, the component's
* {@link #getSubTplData subTpl data} serves as the context.
*/
'inputAttrTpl'
],
/**
* @cfg {String} name
* The name of the field. This is used as the parameter name when including the field value
* in a {@link Ext.form.Basic#submit form submit()}. If no name is configured, it falls back to the {@link #inputId}.
* To prevent the field from being included in the form submit, set {@link #submitValue} to false.
*/
/**
* @cfg {String} inputType
* The type attribute for input fields -- e.g. radio, text, password, file. The extended types
* supported by HTML5 inputs (url, email, etc.) may also be used, though using them will cause older browsers to
* fall back to 'text'.
*
* The type 'password' must be used to render that field type currently -- there is no separate Ext component for
* that. You can use {@link Ext.form.field.File} which creates a custom-rendered file upload field, but if you want
* a plain unstyled file input you can use a Base with inputType:'file'.
*/
inputType: 'text',
/**
* @cfg {Number} tabIndex
* The tabIndex for this field. Note this only applies to fields that are rendered, not those which are built via
* applyTo
*/
//<locale>
/**
* @cfg {String} invalidText
* The error text to use when marking a field invalid and no message is provided
*/
invalidText : 'The value in this field is invalid',
//</locale>
/**
* @cfg {String} [fieldCls='x-form-field']
* The default CSS class for the field input
*/
fieldCls : Ext.baseCSSPrefix + 'form-field',
/**
* @cfg {String} fieldStyle
* Optional CSS style(s) to be applied to the {@link #inputEl field input element}. Should be a valid argument to
* {@link Ext.Element#applyStyles}. Defaults to undefined. See also the {@link #setFieldStyle} method for changing
* the style after initialization.
*/
/**
* @cfg {String} [focusCls='x-form-focus']
* The CSS class to use when the field receives focus
*/
focusCls : 'form-focus',
/**
* @cfg {String} dirtyCls
* The CSS class to use when the field value {@link #isDirty is dirty}.
*/
dirtyCls : Ext.baseCSSPrefix + 'form-dirty',
/**
* @cfg {String[]} checkChangeEvents
* A list of event names that will be listened for on the field's {@link #inputEl input element}, which will cause
* the field's value to be checked for changes. If a change is detected, the {@link #change change event} will be
* fired, followed by validation if the {@link #validateOnChange} option is enabled.
*
* Defaults to ['change', 'propertychange'] in Internet Explorer, and ['change', 'input', 'textInput', 'keyup',
* 'dragdrop'] in other browsers. This catches all the ways that field values can be changed in most supported
* browsers; the only known exceptions at the time of writing are:
*
* - Safari 3.2 and older: cut/paste in textareas via the context menu, and dragging text into textareas
* - Opera 10 and 11: dragging text into text fields and textareas, and cut via the context menu in text fields
* and textareas
* - Opera 9: Same as Opera 10 and 11, plus paste from context menu in text fields and textareas
*
* If you need to guarantee on-the-fly change notifications including these edge cases, you can call the
* {@link #checkChange} method on a repeating interval, e.g. using {@link Ext.TaskManager}, or if the field is within
* a {@link Ext.form.Panel}, you can use the FormPanel's {@link Ext.form.Panel#pollForChanges} configuration to set up
* such a task automatically.
*/
checkChangeEvents: Ext.isIE && (!document.documentMode || document.documentMode < 9) ?
['change', 'propertychange'] :
['change', 'input', 'textInput', 'keyup', 'dragdrop'],
/**
* @cfg {Number} checkChangeBuffer
* Defines a timeout in milliseconds for buffering {@link #checkChangeEvents} that fire in rapid succession.
* Defaults to 50 milliseconds.
*/
checkChangeBuffer: 50,
componentLayout: 'field',
/**
* @cfg {Boolean} readOnly
* true to mark the field as readOnly in HTML.
*
* **Note**: this only sets the element's readOnly DOM attribute. Setting `readOnly=true`, for example, will not
* disable triggering a ComboBox or Date; 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 `{@link Ext.form.field.Trigger#hideTrigger hideTrigger}`.
*/
readOnly : false,
/**
* @cfg {String} readOnlyCls
* The CSS class applied to the component's main element when it is {@link #readOnly}.
*/
readOnlyCls: Ext.baseCSSPrefix + 'form-readonly',
/**
* @cfg {String} inputId
* The id that will be given to the generated input DOM element. Defaults to an automatically generated id. If you
* configure this manually, you must make sure it is unique in the document.
*/
/**
* @cfg {Boolean} validateOnBlur
* Whether the field should validate when it loses focus. This will cause fields to be validated
* as the user steps through the fields in the form regardless of whether they are making changes to those fields
* along the way. See also {@link #validateOnChange}.
*/
validateOnBlur: true,
// private
hasFocus : false,
baseCls: Ext.baseCSSPrefix + 'field',
maskOnDisable: false,
// private
initComponent : function() {
var me = this;
me.callParent();
me.subTplData = me.subTplData || {};
me.addEvents(
/**
* @event specialkey
* Fires when any key related to navigation (arrows, tab, enter, esc, etc.) is pressed. To handle other keys
* see {@link Ext.util.KeyMap}. You can check {@link Ext.EventObject#getKey} to determine which key was
* pressed. For example:
*
* var form = new Ext.form.Panel({
* ...
* 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.up('form').getForm();
* form.submit();
* }
* }
* }
* }
* ],
* ...
* });
*
* @param {Ext.form.field.Base} this
* @param {Ext.EventObject} e The event object
*/
'specialkey',
/**
* @event writeablechange
* Fires when this field changes its read-only status.
* @param {Ext.form.field.Base} this
* @param {Boolean} Read only flag
*/
'writeablechange'
);
// Init mixins
me.initLabelable();
me.initField();
// Default name to inputId
if (!me.name) {
me.name = me.getInputId();
}
},
beforeRender: function(){
var me = this;
me.callParent(arguments);
me.beforeLabelableRender(arguments);
if (me.readOnly) {
me.addCls(me.readOnlyCls);
}
},
/**
* Returns the input id for this field. If none was specified via the {@link #inputId} config, then an id will be
* automatically generated.
*/
getInputId: function() {
return this.inputId || (this.inputId = this.id + '-inputEl');
},
/**
* Creates and returns the data object to be used when rendering the {@link #fieldSubTpl}.
* @return {Object} The template data
* @template
*/
getSubTplData: function() {
var me = this,
type = me.inputType,
inputId = me.getInputId(),
data;
data = Ext.apply({
id : inputId,
cmpId : me.id,
name : me.name || inputId,
disabled : me.disabled,
readOnly : me.readOnly,
value : me.getRawValue(),
type : type,
fieldCls : me.fieldCls,
fieldStyle : me.getFieldStyle(),
tabIdx : me.tabIndex,
typeCls : Ext.baseCSSPrefix + 'form-' + (type === 'password' ? 'text' : type)
}, me.subTplData);
me.getInsertionRenderData(data, me.subTplInsertions);
return data;
},
afterFirstLayout: function() {
this.callParent();
var el = this.inputEl;
if (el) {
el.selectable();
}
},
applyRenderSelectors: function() {
var me = this;
me.callParent();
/**
* @property {Ext.Element} inputEl
* The input Element for this Field. Only available after the field has been rendered.
*/
me.inputEl = me.el.getById(me.getInputId());
},
/**
* Gets the markup to be inserted into the outer template's bodyEl. For fields this is the actual input element.
*/
getSubTplMarkup: function() {
return this.getTpl('fieldSubTpl').apply(this.getSubTplData());
},
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());
},
/**
* Set the {@link #fieldStyle CSS style} of the {@link #inputEl field input element}.
* @param {String/Object/Function} style The style(s) to apply. Should be a valid argument to {@link
* Ext.Element#applyStyles}.
*/
setFieldStyle: function(style) {
var me = this,
inputEl = me.inputEl;
if (inputEl) {
inputEl.applyStyles(style);
}
me.fieldStyle = style;
},
getFieldStyle: function() {
return 'width:100%;' + (Ext.isObject(this.fieldStyle) ? Ext.DomHelper.generateStyles(this.fieldStyle) : this.fieldStyle ||'');
},
// private
onRender : function() {
var me = this;
me.callParent(arguments);
me.onLabelableRender();
me.renderActiveError();
},
getFocusEl: function() {
return this.inputEl;
},
isFileUpload: function() {
return this.inputType === 'file';
},
extractFileInput: function() {
var me = this,
fileInput = me.isFileUpload() ? me.inputEl.dom : null,
clone;
if (fileInput) {
clone = fileInput.cloneNode(true);
fileInput.parentNode.replaceChild(clone, fileInput);
me.inputEl = Ext.get(clone);
}
return fileInput;
},
// private override to use getSubmitValue() as a convenience
getSubmitData: function() {
var me = this,
data = null,
val;
if (!me.disabled && me.submitValue && !me.isFileUpload()) {
val = me.getSubmitValue();
if (val !== null) {
data = {};
data[me.getName()] = val;
}
}
return data;
},
/**
* Returns the value that would be included in a standard form submit for this field. This will be combined with the
* field's name to form a name=value pair in the {@link #getSubmitData submitted parameters}. If an empty string is
* returned then just the name= will be submitted; if null is returned then nothing will be submitted.
*
* Note that the value returned will have been {@link #processRawValue processed} but may or may not have been
* successfully {@link #validate validated}.
*
* @return {String} The value to be submitted, or null.
*/
getSubmitValue: function() {
return this.processRawValue(this.getRawValue());
},
/**
* Returns the raw value of the field, without performing any normalization, conversion, or validation. To get a
* normalized and converted value see {@link #getValue}.
* @return {String} value The raw String value of the field
*/
getRawValue: function() {
var me = this,
v = (me.inputEl ? me.inputEl.getValue() : Ext.value(me.rawValue, ''));
me.rawValue = v;
return v;
},
/**
* Sets the field's raw value directly, bypassing {@link #valueToRaw value conversion}, change detection, and
* validation. To set the value with these additional inspections see {@link #setValue}.
* @param {Object} value The value to set
* @return {Object} value The field value that is set
*/
setRawValue: function(value) {
var me = this;
value = Ext.value(me.transformRawValue(value), '');
me.rawValue = value;
// Some Field subclasses may not render an inputEl
if (me.inputEl) {
me.inputEl.dom.value = value;
}
return value;
},
/**
* Transform the raw value before it is set
* @protected
* @param {Object} value The value
* @return {Object} The value to set
*/
transformRawValue: function(value) {
return value;
},
/**
* Converts a mixed-type value to a raw representation suitable for displaying in the field. This allows controlling
* how value objects passed to {@link #setValue} are shown to the user, including localization. For instance, for a
* {@link Ext.form.field.Date}, this would control how a Date object passed to {@link #setValue} would be converted
* to a String for display in the field.
*
* See {@link #rawToValue} for the opposite conversion.
*
* The base implementation simply does a standard toString conversion, and converts {@link Ext#isEmpty empty values}
* to an empty string.
*
* @param {Object} value The mixed-type value to convert to the raw representation.
* @return {Object} The converted raw value.
*/
valueToRaw: function(value) {
return '' + Ext.value(value, '');
},
/**
* Converts a raw input field value into a mixed-type value that is suitable for this particular field type. This
* allows controlling the normalization and conversion of user-entered values into field-type-appropriate values,
* e.g. a Date object for {@link Ext.form.field.Date}, and is invoked by {@link #getValue}.
*
* It is up to individual implementations to decide how to handle raw values that cannot be successfully converted
* to the desired object type.
*
* See {@link #valueToRaw} for the opposite conversion.
*
* The base implementation does no conversion, returning the raw value untouched.
*
* @param {Object} rawValue
* @return {Object} The converted value.
*/
rawToValue: function(rawValue) {
return rawValue;
},
/**
* Performs any necessary manipulation of a raw field value to prepare it for {@link #rawToValue conversion} and/or
* {@link #validate validation}, for instance stripping out ignored characters. In the base implementation it does
* nothing; individual subclasses may override this as needed.
*
* @param {Object} value The unprocessed string value
* @return {Object} The processed string value
*/
processRawValue: function(value) {
return value;
},
/**
* Returns the current data value of the field. The type of value returned is particular to the type of the
* particular field (e.g. a Date object for {@link Ext.form.field.Date}), as the result of calling {@link #rawToValue} on
* the field's {@link #processRawValue processed} String value. To return the raw String value, see {@link #getRawValue}.
* @return {Object} value The field value
*/
getValue: function() {
var me = this,
val = me.rawToValue(me.processRawValue(me.getRawValue()));
me.value = val;
return val;
},
/**
* Sets a data value into the field and runs the change detection and validation. To set the value directly
* without these inspections see {@link #setRawValue}.
* @param {Object} value The value to set
* @return {Ext.form.field.Field} this
*/
setValue: function(value) {
var me = this;
me.setRawValue(me.valueToRaw(value));
return me.mixins.field.setValue.call(me, value);
},
onBoxReady: function() {
var me = this;
me.callParent();
if (me.setReadOnlyOnBoxReady) {
me.setReadOnly(me.readOnly);
}
},
//private
onDisable: function() {
var me = this,
inputEl = me.inputEl;
me.callParent();
if (inputEl) {
inputEl.dom.disabled = true;
if (me.hasActiveError()) {
// clear invalid state since the field is now disabled
me.clearInvalid();
me.needsValidateOnEnable = true;
}
}
},
//private
onEnable: function() {
var me = this,
inputEl = me.inputEl;
me.callParent();
if (inputEl) {
inputEl.dom.disabled = false;
if (me.needsValidateOnEnable) {
delete me.needsValidateOnEnable;
// will trigger errors to be shown
me.forceValidation = true;
me.isValid();
delete me.forceValidation;
}
}
},
/**
* Sets the read only state of this field.
* @param {Boolean} readOnly Whether the field should be read only.
*/
setReadOnly: function(readOnly) {
var me = this,
inputEl = me.inputEl;
readOnly = !!readOnly;
me[readOnly ? 'addCls' : 'removeCls'](me.readOnlyCls);
me.readOnly = readOnly;
if (inputEl) {
inputEl.dom.readOnly = readOnly;
} else if (me.rendering) {
me.setReadOnlyOnBoxReady = true;
}
me.fireEvent('writeablechange', me, readOnly);
},
// private
fireKey: function(e){
if(e.isSpecialKey()){
this.fireEvent('specialkey', this, new Ext.EventObjectImpl(e));
}
},
// private
initEvents : function(){
var me = this,
inputEl = me.inputEl,
onChangeTask,
onChangeEvent,
events = me.checkChangeEvents,
e,
eLen = events.length,
event;
// standardise buffer across all browsers + OS-es for consistent event order.
// (the 10ms buffer for Editors fixes a weird FF/Win editor issue when changing OS window focus)
if (me.inEditor) {
me.onBlur = Ext.Function.createBuffered(me.onBlur, 10);
}
if (inputEl) {
me.mon(inputEl, Ext.EventManager.getKeyEvent(), me.fireKey, me);
// listen for immediate value changes
onChangeTask = new Ext.util.DelayedTask(me.checkChange, me);
me.onChangeEvent = onChangeEvent = function() {
onChangeTask.delay(me.checkChangeBuffer);
};
for (e = 0; e < eLen; e++) {
event = events[e];
if (event === 'propertychange') {
me.usesPropertychange = true;
}
me.mon(inputEl, event, onChangeEvent);
}
}
me.callParent();
},
doComponentLayout: function() {
var me = this,
inputEl = me.inputEl,
usesPropertychange = me.usesPropertychange,
ename = 'propertychange',
onChangeEvent = me.onChangeEvent;
// In IE if propertychange is one of the checkChangeEvents, we need to remove
// the listener prior to layout and re-add it after, to prevent it from firing
// needlessly for attribute and style changes applied to the inputEl.
if (usesPropertychange) {
me.mun(inputEl, ename, onChangeEvent);
}
me.callParent(arguments);
if (usesPropertychange) {
me.mon(inputEl, ename, onChangeEvent);
}
},
/**
* @private Called when the field's dirty state changes. Adds/removes the {@link #dirtyCls} on the main element.
* @param {Boolean} isDirty
*/
onDirtyChange: function(isDirty) {
this[isDirty ? 'addCls' : 'removeCls'](this.dirtyCls);
},
/**
* Returns whether or not the field value is currently valid by {@link #getErrors validating} the
* {@link #processRawValue processed raw value} of the field. **Note**: {@link #disabled} fields are
* always treated as valid.
*
* @return {Boolean} True if the value is valid, else false
*/
isValid : function() {
var me = this,
disabled = me.disabled,
validate = me.forceValidation || !disabled;
return validate ? me.validateValue(me.processRawValue(me.getRawValue())) : disabled;
},
/**
* Uses {@link #getErrors} to build an array of validation errors. If any errors are found, they are passed to
* {@link #markInvalid} and false is returned, otherwise true is returned.
*
* Previously, subclasses were invited to provide an implementation of this to process validations - from 3.2
* onwards {@link #getErrors} should be overridden instead.
*
* @param {Object} value The value to validate
* @return {Boolean} True if all validations passed, false if one or more failed
*/
validateValue: function(value) {
var me = this,
errors = me.getErrors(value),
isValid = Ext.isEmpty(errors);
if (!me.preventMark) {
if (isValid) {
me.clearInvalid();
} else {
me.markInvalid(errors);
}
}
return isValid;
},
/**
* Display one or more error messages associated with this field, using {@link #msgTarget} to determine how to
* display the messages and applying {@link #invalidCls} to the field's UI element.
*
* **Note**: this method does not cause the Field's {@link #validate} or {@link #isValid} methods to return `false`
* if the value does _pass_ validation. So simply marking a Field as invalid will not prevent submission of forms
* submitted with the {@link Ext.form.action.Submit#clientValidation} option set.
*
* @param {String/String[]} errors The validation message(s) to display.
*/
markInvalid : function(errors) {
// Save the message and fire the 'invalid' event
var me = this,
oldMsg = me.getActiveError();
me.setActiveErrors(Ext.Array.from(errors));
if (oldMsg !== me.getActiveError()) {
me.updateLayout();
}
},
/**
* Clear any invalid styles/messages for this field.
*
* **Note**: this method does not cause the Field's {@link #validate} or {@link #isValid} methods to return `true`
* if the value does not _pass_ validation. So simply clearing a field's errors will not necessarily allow
* submission of forms submitted with the {@link Ext.form.action.Submit#clientValidation} option set.
*/
clearInvalid : function() {
// Clear the message and fire the 'valid' event
var me = this,
hadError = me.hasActiveError();
me.unsetActiveError();
if (hadError) {
me.updateLayout();
}
},
/**
* @private Overrides the method from the Ext.form.Labelable mixin to also add the invalidCls to the inputEl,
* as that is required for proper styling in IE with nested fields (due to lack of child selector)
*/
renderActiveError: function() {
var me = this,
hasError = me.hasActiveError();
if (me.inputEl) {
// Add/remove invalid class
me.inputEl[hasError ? 'addCls' : 'removeCls'](me.invalidCls + '-field');
}
me.mixins.labelable.renderActiveError.call(me);
},
getActionEl: function() {
return this.inputEl || this.el;
}
});