stackyyflow stackyyflow - 1 month ago 24
jQuery Question

SweetAlert dropdown dynamically add items in list

I am currently using sweetalert2 to capture user's input from the dialog. I would like to use the dropdown in chaining queue dialog but I can't seem to find a way to dynamically add items in the dropdown list. Let's say I want to retrieve data from JSON format and place in the dropdown list, is there a way to do it?

function userInput() {
swal.setDefaults(
{
showLoaderOnConfirm: true,
confirmButtonText: 'Next →',
showCancelButton: true,
animation: true,
progressSteps: ['1', '2', '3']
}
);

var steps = [
{
text: 'Select an author to analyze the commit',
input: 'select',
inputOptions: {
'SRB': 'Serbia', // How do I dynamically set value?
'UKR': 'Ukraine',
'HRV': 'Croatia'
}
},
{
text: 'Select multiple authors to compare their commits',
input: 'select',
inputOptions: {
'SRB': 'Serbia', // How do I dynamically set value?
'UKR': 'Ukraine',
'HRV': 'Croatia'
}
},
{
text: 'Select a file directory to analyze all author\'s commit',
input: 'select',
inputOptions: {
'SRB': 'Serbia', // How do I dynamically set value?
'UKR': 'Ukraine',
'HRV': 'Croatia'
}
}
];

swal.queue(steps).then(function(result) {
swal.resetDefaults();
swal({
type: 'success',
title: 'Success',
text: 'Scroll down for statistics!',
html:
'Your selections: <pre>' +
JSON.stringify(result) +
'</pre>',
confirmButtonText: 'Ok',
showCancelButton: false
})
}, function() {
swal.resetDefaults()
})
}


Retrieve data in JSON format:

function getData(repolink) {
readDataFromGit('https://api.github.com/repos/' + repolink + '/git/trees/master?recursive=1', function(text){
data = JSON.parse(text);
$.each(data, function(i, v) {
// Retrieve v.login data!
data = v.login;
})
});
}

function readDataFromGit(link, callback) {
var request = new XMLHttpRequest();
request.overrideMimeType("application/json");
request.open('GET', link, true);
request.onreadystatechange = function() {
if (request.readyState === 4 && request.status == "200") {
callback(request.responseText);
}
};
request.send(null);
}

Answer

As the SweetAlert2 documentation says, inputOptions parameter can be object or Promise.

To populate select items dynamically you should use promises, here's the simple example:

var inputOptionsPromise = new Promise(function (resolve) {
  // get your data and pass it to resolve()
  setTimeout(function () {
    resolve({
      '#FF0000': 'Red',
      '#00FF00': 'Green',
      '#0000FF': 'Blue'
    })
  }, 2000)
})

swal({
  input: 'select',
  inputOptions: inputOptionsPromise
})
<link href="https://cdn.jsdelivr.net/sweetalert2/5.3.5/sweetalert2.css" rel="stylesheet"/>
<script src="https://cdn.jsdelivr.net/sweetalert2/5.3.5/sweetalert2.js"></script>

Notice, that SweetAlert2 will automatically show a loader until the Promise for inputOptions parameter will be resolved or rejected.

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