Develop Reference

JavaScript dialog pop up event wait for OK to be pressed

I got a delete (input submit) button which pops up a dialog (Alloy UI dialog, html) when clicked:
A.all("#RFB input.ConfirmDelete").each(function(node){
node.on('click', function(event) {
if(confirmed) {
showUserWaitDialog();
return true;
}
else {
deactivateKeyboardNav();
deleteConfirm(node, confirmDeleteMessage, function () { //Runs the function rendering the pop up
confirmed = true;
event.target.click();
showUserWaitDialog();
});
}
});
});
The problem is that the event is running async and thus performs the deletion, and not waiting for the user to click OK (calling the callback).
The deleteConfirm takes the following arguments
function deleteConfirm(link, pText, callback) {
The content in the pop up consists of:
var bodyContent = '<div class="vl-info vl-message"><h2>'+titleText+'</h2>'+
'<p>'+pText+'</p>' +
'<p class="more button-area">'+confirmButtonText+''+discardButtonText+'</p></div>';
And the button functions:
A.one('.deleteOK').on('click', function(e){
(jQuery.isFunction(callback)) && callback.apply();
confirmDialog.close();
confirmDialogOpen = false;
});
A.one('.deleteNotOK').on('click', function(e){
confirmDialog.close();
confirmDialogOpen = false;
return false;
});
How should I approach this?

Alloy UI provides a nice Dialog box API. It may be worth to see this example and apply for your requirement.
var dialog = new A.Dialog({
title : '<your dialog box title here>',
centered: true,
modal: false,
width: 600,
height: 250,
bodyContent: <You can keep the message to display here>,
buttons: [
{
label: 'Delete',
id: 'deleteBtn',
handler: function() {
//Place code to delete here. It get executed when user click on Delete button.
}
},
{
label: 'Cancel',
id: 'cancelActionItemBtn',
handler: function() {
this.close();
}
}
]
}).render();

Creating a suitable replacement for prompt

My users may use IE7 and I want to avoid using the prompt function. I have working code using prompt but am unsure of a good way to replace it.
My usage requirement is this. User clicks an image button and then has to OK/Cancel a prompt. If OK is pressed, a Reference is requested which is assigned to RemovePalletReference for use in code behind.
<asp:imagebutton id="ibRemoveFromPallet" runat="server" ImageUrl="../Images/Icons/removefrompallet.gif" OnClientClick="return ConfirmReroute();"></asp:imagebutton>
<asp:HiddenField ID="RemovePalletReference" runat="server" value="" ></asp:HiddenField>
You can see above that I first call ConfirmReroute() which is the following js function.
function ConfirmReroute()
{
if (confirm("Confirm Remove Unit From Pallet") == true)
{
var pmt;
do {
pmt = prompt("Please Enter a Reference:", "");
}
while ( pmt == null || pmt.length < 1);
document.getElementById('<%= RemovePalletReference.ClientID %>').value = pmt;
return true;
}
else
return false;
}
I wish to replace the code where the user has pressed OK to the confirm. I tried with jquery UI modal dialog but could not work it out. I think it may be workable using callbacks but this is a new subject to me and I'm struggling.
Please in answers show some code to help me out. Grateful for any assistance.

Ex
function confirmDialog(title, message, confirm, reject) {
var dialog = $('<div />').html(message).dialog({
appendTo: 'body',
title: title,
modal: true,
buttons: {
"OK": function () {
$(this).dialog("close");
confirm();
},
"cancel": function () {
$(this).dialog("close");
if ($.isFunction(reject)) {
reject();
}
}
},
close: function (event, ui) {
$(this).dialog('destroy');
$(this).remove()
}
})
}
function test(notes) {
confirmDialog('Confirm', 'Confirm Something', function () {
console.log('ok');
//what ever you want to do on confirmation has to go here
}, function () {
console.log('cancelled')
});
//any code added here will get executed before the confirm box is displayed
}
Demo: Fiddle

js override confirm

I want to try to override window.confirm function with modal dialog.
<a href="http://example.com" onClick="return confirm('you want to go?')">
<script>
window.confirm = function(message){
$("#confirm-dialog").modal('show');
$("#confirm-dialog .modal-body p").html(message);
$("#confirmYes").on("click", function () {
return true;
});
}
</script>
When I click in modal window on the #confirmYes element it returns true, but the redirect by href link will not work...Why?
Can somebody tell me how I can do this thing without changing my link?
Thanks
UPD
Yii framework generates that code for CGridView widget and i want to override it. I can't change this code, because its in framework. Instead this confirm standard i want to use my modal window
$(document).on('click','#product-grid a.delete',function() {
if(!confirm('Are you sure you want to delete this item?')) return false;
var th=this;
var afterDelete=function(){};
$.fn.yiiGridView.update('product-grid', {
type:'POST',
url:$(this).attr('href'),
success:function(data) {
$.fn.yiiGridView.update('product-grid');
afterDelete(th,true,data);
},
error:function(XHR) {
return afterDelete(th,false,XHR);
}
});
return false;
});

Here is a practice that we used in my company in a UI conversion project.
It is ugly though, but it works just fine.
var clickState={};
var justClicked=null;
window.confirm = function(message) {
var e = window.event || window.confirm.caller.arguments[0];
var el = e.target || e.srcElement; // the element's click that triggers confirm dialog
if(justClicked && clickState[justClicked]===true){
clickState[justClicked]=false;
return true;
}else{
// your async style confirmation dialog (e.g. jQuery's dialog)
showConfirmBox(message, function() {
justClicked=el;
clickState[el]=true;
$(justClicked).click(); // in the call back function , click the target again.
});
}
return false;
};

Js default confirm dialog work synchronously, it means that code will wait for the user to make his choice to continue. When you override confirm dialog this way what happens is that your new stylish confirm dialog is shown but method end immediately and returns undefined.
You can work with callbacks;
<a href="http://example.com" onClick="confirm('you want to go?', function(result){
if(result)
//code to redirect, like window.location(this.href);
}); return false;">
then:
<script>
window.confirm = function(message, cb){
$("#confirm-dialog").modal('show');
$("#confirm-dialog .modal-body p").html(message);
$("#confirmYes").on("click", function (userChoice) {
cb(userChoice); //true or false - your jquery plugin will supply this value
});
}
</script>
EDIT: Its important to keep the link url on href (instead of just leaving "/#") for SEO reasons - for the link not be triggered you should also return false after calling your new confirm dialog.

If you need Overriding the window.alert() dialog box you can find it here
after that I have create my own Overriding the window.confirm() dialog box you can find it here
Overriding the window.confirm() dialog box.
It is pretty simple just like:
window.confirm = function(message, title, doYes) {
$(document.createElement('div'))
.attr({title: title, class: 'confirm'})
.html(message)
.dialog({
buttons: {
"Confirm": function() {
$(this).dialog("close");
if (doYes && (typeof doYes === "function")) {
doYes();
}
},
"Cancel": function() {
$(this).dialog("close");
}
}
,
close: function() {
$(this).remove();
},
draggable: true,
modal: true,
resizable: false,
width: 'auto'
});
};
// New confirm
//confirm('This is a <strong>new</strong> alert!','Confirm', function(){alert('Yes')},function(){alert('No')});

I know it is an old post but I want to share my solution, I know this changes the yii default behaviour but I replaced their function for one custom working the same way, I am gonna ask yii gurus about a better way or if in the future this can be done easily.
In framework/yii/zii/widgets/grid/CButtonColumn.php modify the initDefaultButtons:
/**
* Initializes the default buttons (view, update and delete).
*/
protected function initDefaultButtons()
{
if($this->viewButtonLabel===null)
$this->viewButtonLabel=Yii::t('zii','View');
if($this->updateButtonLabel===null)
$this->updateButtonLabel=Yii::t('zii','Update');
if($this->deleteButtonLabel===null)
$this->deleteButtonLabel=Yii::t('zii','Delete');
if($this->viewButtonImageUrl===null)
$this->viewButtonImageUrl=$this->grid->baseScriptUrl.'/view.png';
if($this->updateButtonImageUrl===null)
$this->updateButtonImageUrl=$this->grid->baseScriptUrl.'/update.png';
if($this->deleteButtonImageUrl===null)
$this->deleteButtonImageUrl=$this->grid->baseScriptUrl.'/delete.png';
if($this->deleteConfirmation===null)
$this->deleteConfirmation=Yii::t('zii','Are you sure you want to delete this item?');
foreach(array('view','update','delete') as $id)
{
$button=array(
'label'=>$this->{$id.'ButtonLabel'},
'url'=>$this->{$id.'ButtonUrl'},
'imageUrl'=>$this->{$id.'ButtonImageUrl'},
'options'=>$this->{$id.'ButtonOptions'},
);
if(isset($this->buttons[$id]))
$this->buttons[$id]=array_merge($button,$this->buttons[$id]);
else
$this->buttons[$id]=$button;
}
if(!isset($this->buttons['delete']['click']))
{
if(is_string($this->deleteConfirmation))
$confirmation="if(!confirm(".CJavaScript::encode($this->deleteConfirmation).")) return false;";
else
$confirmation='';
if(Yii::app()->request->enableCsrfValidation)
{
$csrfTokenName = Yii::app()->request->csrfTokenName;
$csrfToken = Yii::app()->request->csrfToken;
$csrf = "\n\t\tdata:{ '$csrfTokenName':'$csrfToken' },";
}
else
$csrf = '';
if($this->afterDelete===null)
$this->afterDelete='function(){}';
$withConfirmation = strlen($confirmation) == 0 ? 0 : 1;
$confirmationMessage = CJavaScript::encode($this->deleteConfirmation);
$this->buttons['delete']['click']=<<<EOD
`function(event) {
event.preventDefault();
if ($withConfirmation){
var th=this;
var afterDelete=$this->afterDelete;
var deleteUrl=$(this).attr('href');
console.log(deleteUrl);
$(document.createElement('div')).attr({
title:'Atención',
'class': 'dialog'
}).html($confirmationMessage).dialog({
buttons: {
"OK": function () {
$(this).dialog('close');
$.fn.yiiGridView.update('{$this->grid->id}', {
type:'POST',
url:deleteUrl,$csrf
success:function(data) {
$.fn.yiiGridView.update('{$this->grid->id}');
afterDelete(th,true,data);
},
error:function(XHR) {
return afterDelete(th,false,XHR);
}
});
return true;
},
"Cancel": function () {
$(this).dialog('close');
return false;
}
},
close: function () {
$(this).remove();
},
draggable: false,
modal: true,
resizable: false,
width: 'auto'
}).position({
my: "center",
at: "center",
of: window
});
}
}
EOD;
}
}
`
EDIT:
I also learned how to do it without modify core yii:
In you widget grid you a file for the buttons like this:
array
(
'class'=>'CButtonColumn',
'deleteConfirmation'=>'Atencion',
'buttons'=>array
(
'update'=>array
(
'imageUrl'=>FALSE,
'label'=>'update',
'options'=>array('title'=>'update'),
'visible'=>'$row > 0'
),
'delete'=>array
(
'imageUrl'=>FALSE,
'label'=>'delete',
'options'=>array('title'=>'delete'),
'click'=>'function(){$("#mydialog").dialog("open"); return false;}',
),
),
'template'=>'{update} | {delete}'
),

Try adding a return to the onclick:
a href="http://example.com" onclick="return confirm("you want to go?")">

Confirmation with save and discard button

How can we create a confirmation alert in javascript with a save and discard button in it?
If we use the code
confirm('Do you want to save it?');
We will get an alert box with ok cancel.
How can we make the text of ok button as save and the other as discard?

You cannot modify the default javascript method "confirm". But, you can override it, for example, with jQuery UI dialog:
window.confirm = function (message) {
var html = "<div style='margin:20px;'><img style='float:left;margin-right:20px;' src='/img/confirm.gif' alt='Confirm'/><div style='display:table;height:1%;'>" + message + "</div></div>";
$(html).dialog({ closeOnEscape: false,
open: function (event, ui) { $('.ui-dialog-titlebar-close').hide(); },
modal: true,
resizable: false,
width: 400,
title: "Confirmation",
buttons: {
"Save": function () {
//Do what you need
},
"Cancel": function () {
$(this).dialog("close");
}
}
});
}

this is not possible
more answers

Connect some of the tons JS framework. For example jQuery+UI
Overwrite window.confirm method, by makin it as wrapper to your favorite JS UI framework.
PROFIT!!!

How do I get a JQuery statement to wait until it's completed before continuing?>

Firstly, I'm new at Javascript / Jquery so it might be a stupid question...
I'm using the dialog box that is in the JQuery UI collection. I have a button that when clicked, it either shows a confirm box or an alert box. My code is like below...
function checkfn() {
if (document.getElementById('<%=HomeInstSelected.ClientID%>').value == 'False') {
var dialogResult = false;
$("#dialog-confirm").dialog({
resizable: false,
height: 140,
modal: true,
buttons: {
Continue: function () {
dialogResult = true;
$(this).dialog("close");
},
Cancel: function () {
$(this).dialog("close").slideUp();
}
}
});
// alert just debug code!
alert(dialogResult);
return dialogResult;
}
else {
$("#dialog-HomeInstitutionPrompt").dialog({
height: 140,
modal: true
});
}
}
My problem is in the confirm part, it seems the confirm box is not waiting for me to hit Continue or Cancel - it's just going straight to the alert part and returning dialogResult = false.
Is it possible to halt execution of until after I've run the $('#dialog-confirm') command?
Alternatively, is it possible to return true for the checkfn() function, in the Continue function? That way, I will not need a dialogResult var at all?

I haven't used the .dialog in jQuery UI before, but, in general with jQuery, functions are run asynchronously. What this means is that you need to put the code that you want run in the Continue function.
One possibility is to send a success/cancel function to checkfn that you would call from the Continue and Cancel functions.
function checkfn(success, cancel) {
if (document.getElementById('<%=HomeInstSelected.ClientID%>').value == 'False') {
var dialogResult = false;
$("#dialog-confirm").dialog({
resizable: false,
height: 140,
modal: true,
buttons: {
Continue: function () {
if(success) success();
$(this).dialog("close");
},
Cancel: function () {
if(cancel) cancel();
$(this).dialog("close").slideUp();
}
}
});
}
You can call the function like this:
checkfn(function () {
alert('success!');
}, function () {
alert('failure!');
});

Just put everything you want to do inside "Continue" and "Cancel" button definitions. So, you will not need a dialogResult and alert will hit when it is needed.
if (document.getElementById('<%=HomeInstSelected.ClientID%>').value == 'False') {
var dialogResult = false;
$("#dialog-confirm").dialog({
resizable: false,
height: 140,
modal: true,
buttons: {
Continue: function () {
alert('Dialog result is true. I can do whatever I want here');
$(this).dialog("close");
},
Cancel: function () {
alert('Cancel is clicked. I should go on my life');
$(this).dialog("close").slideUp();
}
}
});
}
else {
$("#dialog-HomeInstitutionPrompt").dialog({
height: 140,
modal: true
});
}
-- You can't return a value for your function, because after initialization of the function, the code goes on. You need to fill Continue button definition.

This is something I struggled with when I started too, The code doesn't run as it reads on the page. When you call the dialog function it executes asynchronously. The continue and cancel functions are bound to the click actions on the buttons, meanwhile the code below the dialog function runs without waiting for the events.
Long story short the result needs to happen in the cancel and continue callbacks.
Problem is you're trying to return a boolean value when you should really pass the resulting functions in instead. Alot of things in jquery and javascript in general work that way. Thankfully the language provides the ability to program in this way.
function checkfn( resultfn(boolval) ) {
if (document.getElementById('<%=HomeInstSelected.ClientID%>').value == 'False') {
var dialogResult = false;
$("#dialog-confirm").dialog({
resizable: false,
height: 140,
modal: true,
buttons: {
Continue: function () {
resultfn.call( this, true );
$(this).dialog("close");
},
Cancel: function () {
resultfn.call( this, false );
$(this).dialog("close").slideUp();
}
}
});
}
Put the if statement in "resultfn"

I had a similar frustrating problem where the jQuery dialog box would submit a form before the user had a chance to choose Yes or No.
Example HTML:
<form id="myForm" method="POST" action="/Where/To/Go">
<input type="submit" value="Submit" onclick="submitForm()"/>
</form>
And jQuery:
function submitForm() {
$('<div title="Submit Form>Are you sure you wish to submit the form?</div>').dialog({
modal: true,
buttons: [
{
text: "Yes",
click: function () {
$('#myForm').submit();
$(this).dialog("close");
}
}, {
text: "No",
click: function () {
$(this).dialog("close");
}
}
]
});
}
To fix the issue I changed the button from a submit type to a button type which stopped it submitting and triggering the jQuery dialog at the same time:
<input type="button" value="Submit" onclick="submitForm()"/>