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Prado.WebUI.TActiveFileUpload = Class.create(Prado.WebUI.Control,
{
onInit : function(options)
{
this.options = options || {};
Prado.WebUI.TActiveFileUpload.register(this);
this.input = $(options.inputID);
this.flag = $(options.flagID);
this.form = $(options.formID);
this.indicator = $(options.indicatorID);
this.complete = $(options.completeID);
this.error = $(options.errorID);
// set up events
if (options.autoPostBack){
this.observe(this.input,"change",this.fileChanged.bind(this));
}
},
fileChanged : function(){
// show the upload indicator, and hide the complete and error indicators (if they areSn't already).
this.flag.value = '1';
this.complete.style.display = 'none';
this.error.style.display = 'none';
this.indicator.style.display = '';
// set the form to submit in the iframe, submit it, and then reset it.
this.oldtargetID = this.form.target;
this.oldFormAction = this.form.action;
this.oldFormMethod = this.form.method;
this.oldFormEnctype = this.form.enctype;
this.form.action += (this.form.action.indexOf('?')!=-1 ? '&' : '?')+'TActiveFileUpload_InputId='+this.options.inputID+'&TActiveFileUpload_TargetId='+this.options.targetID;
this.form.target = this.options.targetID;
this.form.method = 'POST';
this.form.enctype = 'multipart/form-data';
this.form.submit();
this.form.action = this.oldFormAction;
this.form.target = this.oldtargetID;
this.form.method = this.oldFormMethod;
this.form.enctype = this.oldFormEnctype;
},
finishUpload : function(options){
if (this.options.targetID == options.targetID)
{
this.finishoptions = options;
var e = this;
var callback =
{
'CallbackParameter' : options || '',
'onSuccess' : function() { e.finishCallBack(true); },
'onFailure' : function() { e.finishCallBack(false); }
};
Object.extend(callback, this.options);
var request = new Prado.CallbackRequest(this.options.EventTarget, callback);
request.dispatch();
}
else
this.finishCallBack(true);
},
finishCallBack : function(success){
// hide the display indicator.
this.flag.value = '';
this.indicator.style.display = 'none';
// show the complete indicator.
if ((this.finishoptions.errorCode == 0) && (success)) {
this.complete.style.display = '';
this.input.value = '';
} else {
this.error.style.display = '';
}
}
});
Object.extend(Prado.WebUI.TActiveFileUpload,
{
//class methods
controls : {},
register : function(control)
{
Prado.WebUI.TActiveFileUpload.controls[control.options.ID] = control;
},
onFileUpload : function(options)
{
Prado.WebUI.TActiveFileUpload.controls[options.clientID].finishUpload(options);
},
fileChanged : function(controlID){
Prado.WebUI.TActiveFileUpload.controls[controlID].fileChanged();
}
});
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