BasicForm.js
/**
* @class Ext.form.BasicForm
* @extends Ext.util.Observable
* Supplies the functionality to do "actions" on forms and initialize Ext.form.Field types on existing markup.
* @constructor
* @param {String/HTMLElement/Ext.Element} el The form element or its id
* @param {Object} config Configuration options
*/
Ext.form.BasicForm = function(el, config){
Ext.apply(this, config);
/*
* The Ext.form.Field items in this form
* @type MixedCollection
*/
this.items = new Ext.util.MixedCollection(false, function(o){
return o.id || (o.id = Ext.id());
});
this.addEvents({
/**
* @event beforeaction
* Fires before any action is performed. Return false to cancel the action.
* @param {Form} this
* @param {Action} action The action to be performed
*/
beforeaction: true,
/**
* @event actionfailed
* Fires when an action fails
* @param {Form} this
* @param {Action} action The action that failed
*/
actionfailed : true,
/**
* @event actioncomplete
* Fires when an action is completed
* @param {Form} this
* @param {Action} action The action that completed
*/
actioncomplete : true
});
if(el){
this.initEl(el);
}
Ext.form.BasicForm.superclass.constructor.call(this);
};
Ext.extend(Ext.form.BasicForm, Ext.util.Observable, {
/**
* @cfg {String} method
* The request method to use (GET or POST) for form actions if one isn't supplied in the action options
*/
// holder
/***
* @cfg {DataReader} reader
* An Ext.data.DataReader (e.g. {@link Ext.data.XmlReader} to be used to read data when executing "load" actions.
* This is completely optional as there is built-in support for processing JSON.
*/
// holder
/***
* @cfg {DataReader} errorReader
* An Ext.data.DataReader (e.g. {@link Ext.data.XmlReader} to be used to read data when reading validation errors on "submit" actions.
* This is completely optional as there is built-in support for processing JSON.
*/
// holder
/***
* @cfg {String} url
* The url to use for form actions if one isn't supplied in the action options
*/
// holder
/***
* @cfg {Boolean} fileUpload
* Set to true if this form is a file upload (YUI adapter only)
*/
// holder
/***
* @cfg {Object} baseParams
* Parameters to pass with all requests. e.g. baseParams: {id: '123', foo: 'bar'}
*/
// holder
/***
* @cfg {Number} timeout
*/
timeout: 30,
// private
activeAction : null,
/**
* By default wait messages are displayed with Ext.MessageBox.wait. You can target a specific
* element by passing it or its id or mask the form itself by passing in true.
* @type Mixed
*/
waitMsgTarget : undefined,
// private
initEl : function(el){
this.el = Ext.get(el);
this.id = this.el.id || Ext.id();
this.el.on('submit', this.onSubmit, this);
this.el.addClass('x-form');
},
// private
onSubmit : function(e){
e.stopEvent();
},
/**
* Returns true is client-side validation on the form is successful
* @return Boolean
*/
isValid : function(){
var valid = true;
this.items.each(function(f){
if(!f.validate()){
valid = false;
}
});
return valid;
},
/**
* Performs a predefined action (submit or load) or custom actions you define on this form
* @param {String} actionName The name of the action type
* @param {Object} options The options to pass to the action
*/
doAction : function(action, options){
if(typeof action == 'string'){
action = new Ext.form.Action.ACTION_TYPES[action](this, options);
}
if(this.fireEvent('beforeaction', this, action) !== false){
this.beforeAction(action);
action.run.defer(100, action);
}
},
/**
* Shortcut to do a submit action
* @param {Object} options The options to pass to the action
*/
submit : function(options){
this.doAction('submit', options);
},
/**
* Shortcut to do a load action
* @param {Object} options The options to pass to the action
*/
load : function(options){
this.doAction('load', options);
},
/**
* Persists the values in this form into the passed Ext.data.Record object in a beginEdit/endEdit block.
* @param {Record} record The record to edit
*/
updateRecord : function(record){
record.beginEdit();
var fs = record.fields;
fs.each(function(f){
var field = this.findField(f.name);
if(field){
record.set(f.name, field.getValue());
}
}, this);
record.endEdit();
},
// private
beforeAction : function(action){
var o = action.options;
if(o.waitMsg){
if(this.waitMsgTarget === true){
this.el.mask(o.waitMsg, 'x-mask-loading');
}else if(this.waitMsgTarget){
this.waitMsgTarget = Ext.get(this.waitMsgTarget);
this.waitMsgTarget.mask(o.waitMsg, 'x-mask-loading');
}else{
Ext.MessageBox.wait(o.waitMsg, o.waitTitle || this.waitTitle || 'Please Wait...');
}
}
},
// private
afterAction : function(action, success){
this.activeAction = null;
var o = action.options;
if(o.waitMsg){
if(this.waitMsgTarget === true){
this.el.unmask();
}else if(this.waitMsgTarget){
this.waitMsgTarget.unmask();
}else{
Ext.MessageBox.updateProgress(1);
Ext.MessageBox.hide();
}
}
if(success){
if(o.reset){
this.reset();
}
Ext.callback(o.success, o.scope, [this, action]);
this.fireEvent('actioncomplete', this, action);
}else{
Ext.callback(o.failure, o.scope, [this, action]);
this.fireEvent('actionfailed', this, action);
}
},
/**
* Find a Ext.form.Field in this form by id, dataIndex, name or hiddenName
* @param {String} id The value to search for
* @return Field
*/
findField : function(id){
var field = this.items.get(id);
if(!field){
this.items.each(function(f){
if(f.isFormField && (f.dataIndex == id || f.id == id || f.getName() == id)){
field = f;
return false;
}
});
}
return field || null;
},
/**
* Mark fields in this form invalid in bulk.
* @param {Array/Object} errors Either an array in the form [{id:'fieldId', msg:'The message'},...] or an object hash of {id: msg, id2: msg2}
*/
markInvalid : function(errors){
if(errors instanceof Array){
for(var i = 0, len = errors.length; i < len; i++){
var fieldError = errors[i];
var f = this.findField(fieldError.id);
if(f){
f.markInvalid(fieldError.msg);
}
}
}else{
var field, id;
for(id in errors){
if(typeof errors[id] != 'function' && (field = this.findField(id))){
field.markInvalid(errors[id]);
}
}
}
},
/**
* Set values for fields in this form in bulk.
* @param {Array/Object} values Either an array in the form [{id:'fieldId', value:'foo'},...] or an object hash of {id: value, id2: value2}
*/
setValues : function(values){
if(values instanceof Array){ // array of objects
for(var i = 0, len = values.length; i < len; i++){
var v = values[i];
var f = this.findField(v.id);
if(f){
f.setValue(v.value);
}
}
}else{ // object hash
var field, id;
for(id in values){
if(typeof values[id] != 'function' && (field = this.findField(id))){
field.setValue(values[id]);
}
}
}
},
/**
* Returns the fields in this form as an object with key value pair. If multiple fields exist with the same name
* they are returned as an array.
* @param {Boolean} asString
* @return {Object}
*/
getValues : function(asString){
var fs = Ext.lib.Ajax.serializeForm(this.el.dom);
if(asString === true){
return fs;
}
return Ext.urlDecode(fs);
},
/**
* Clears all invalid messages in this form
*/
clearInvalid : function(){
this.items.each(function(f){
f.clearInvalid();
});
},
/**
* Resets this form
*/
reset : function(){
this.items.each(function(f){
f.reset();
});
},
/**
* Add Ext.form components to this form
* @param {Field} field1
* @param {Field} field2 （可选）
* @param {Field} etc （可选）
*/
add : function(){
this.items.addAll(Array.prototype.slice.call(arguments, 0));
},
/**
* Removes a field from the items collection (does NOT remove its markup)
* @param {Field} field
*/
remove : function(field){
this.items.remove(field);
},
/**
* Looks at the fields in this form, checks them for an id attribute
* and call applyTo on the existing dom element with that id
*/
render : function(){
this.items.each(function(f){
if(f.isFormField && !f.rendered && document.getElementById(f.id)){ // if the element exists
f.applyTo(f.id);
}
});
},
/**
* Calls {@link Ext#apply} for all field in this form with the passed object
* @param {Object} values
*/
applyToFields : function(o){
this.items.each(function(f){
Ext.apply(f, o);
});
},
/**
* Calls {@link Ext#applyIf} for all field in this form with the passed object
* @param {Object} values
*/
applyIfToFields : function(o){
this.items.each(function(f){
Ext.applyIf(f, o);
});
}
});
// back compat
Ext.BasicForm = Ext.form.BasicForm;
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