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Copy button functionality

I have this Bootstrap code which I would like to use to generate address and implement copy button functionality:
<div class="modal fade" id="bitcoinModal" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="container">
<div class="offset-top-20 text-md-left">
<button type="button" class="close" data-dismiss="modal">×</button>
<h3>Copy address</h3>
</div>
<div class="section-60 offset-top-35">
<div class="offset-top-20 text-md-center">
<form class="rd-mailform form-inline-custom text-left" data-form-output="form-output-global" data-form-type="subscribe" method="post" action="http://.........">
<div class="form-group form-group-outside">
<div class="input-group">
<label class="form-label form-label-outside text-dark" for="forms-subscribe-email">Bitcoin Address</label>
<input class="form-control" id="forms-subscribe-email" type="text" name="bitcoin_address" value="3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy " data-constraints="#Required"/>
</div>
<div class="input-group-btn">
<button class="btn btn-width-165 btn-primary" type="submit">Copy</button>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
How I can copy the content from the input item into the clipboard? How I can change the text to "Copied"

This should work:
function copyToClipboard(e, btn) {
e.preventDefault(); // prevent submit
var str = document.getElementById("forms-subscribe-email");
str.select();
document.execCommand('copy');
btn.innerHTML = "Copied!";
return false; // prevent submit
}
<div class="modal fade" id="bitcoinModal" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="container">
<div class="offset-top-20 text-md-left">
<button type="button" class="close" data-dismiss="modal">×</button>
<h3>Copy address</h3>
</div>
<div class="section-60 offset-top-35">
<div class="offset-top-20 text-md-center">
<form class="rd-mailform form-inline-custom text-left" data-form-output="form-output-global" data-form-type="subscribe" method="post" action="http://.........">
<div class="form-group form-group-outside">
<div class="input-group">
<label class="form-label form-label-outside text-dark" for="forms-subscribe-email">Bitcoin Address</label>
<input class="form-control" id="forms-subscribe-email" type="text" name="bitcoin_address" value="3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy " data-constraints="#Required" />
</div>
<div class="input-group-btn">
<button class="btn btn-width-165 btn-primary" onclick="return copyToClipboard(event, this);">Copy</button>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
</div>

function copyKey(id) {
var copyText = document.getElementById(id);
copyText.select();
document.execCommand("copy");
}
function copy_IP() {
var copy_Text = document.getElementById('our_ip');
//create temporary input to copy text as our input is hidden so we need to create another input
var tempInput = document.createElement("input");
tempInput.style = "position: absolute; left: -1000px; top: -1000px";
tempInput.value = copy_Text.value;
document.body.appendChild(tempInput);
tempInput.select();
document.execCommand("copy");
document.body.removeChild(tempInput);
//show success message
toastr.info(copyText.value, 'IP Copied to Clipboard');
}
You can use any of above function

Use execCommand for this.
function myFunction() {
var copyTextfield = document.getElementById("myInput");
copyTextfield.select();
document.execCommand("copy");
alert("Copied the text: " + copyTextfield.value);
copyTextfield.value = "Copied";
}
<input type="text" value="Hello World" id="myInput">
<button onclick="myFunction()">Copy text</button>

Cannot use has-error in some input element

I'm trying to validate some inputs available in a modal:
<div id="modal-section" class="modal fade bd-example-modal-lg" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="modal-header">
<h3 class="modal-title">Manage</h3>
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">
<i class="tim-icons icon-simple-remove"></i>
</button>
</div>
<div class="modal-body">
<div class="modal-message alert" style="display:none"></div>
<form>
<fieldset>
<legend>Details</legend>
<div class="row">
<div class="col-xs-12 col-sm-6">
<div class="form-group">
<label class="control-label">name</label>
<input type="text" class="required form-control black-content">
</div>
</div>
</div>
</fieldset>
<fieldset>
<legend>
Informations
</legend>
<div id="questions-container">
<div class="card" data-id="1">
<div class="card-body">
<div class="row">
<div class="col-xs-12 col-sm-8">
<div class="form-group">
<label for="question-name" class="control-label">description *</label>
<input type="text" class="required form-control" data-id="1">
</div>
</div>
</div>
</div>
</div>
</div>
</fieldset>
</form>
</div>
<div class="modal-footer">
<button type="button" id="validate" class="btn btn-primary">save</button>
<button type="button" class="btn btn-secondary" data-dismiss="modal">close</button>
</div>
</div>
</div>
When I press the button validate this function will fire:
var missingRequired = false;
$('#modal-section .required').each(function () {
$(this).closest('.form-group').removeClass('has-error');
if ($(this).val() == '' || $(this).val() == undefined) {
$(this).closest('.form-group').addClass('has-error');
missingRequired = true;
}
});
Essentially, this will check all the input that have the required class; only the input name will have the red, the other inputs available in the questions-container will not.
If I look at the HTML I can see that the class has-error is added also to the input available in questions-container but the inputs aren't colored.
The CSS available on the element I have:
theme class:
.white-content .card:not(.card-white) label:not(.btn) {
color: #344675;
}
bootstrap class (commented in the question-container element)
.has-error .form-control-feedback, .has-error .control-label {
color: #ec250d;
}
Why is this happening?

From what i can tell with the information provided, your error CSS rule is not specific enough. Try changing it to:
.card .form-group.has-error label.control-label {
color: #ec250d;
}

Set Textbox Value in opened Modal using javascript Dynamically

On button click open Model like this
<i class="icon-note"></i>
Modal
<div id="edit-venue" class="modal fade portlet" tabindex="-1" aria-hidden="true">
<div class="modal-dialog">
<form class="form-horizontal" id="editVenue" method="post">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true"></button>
<h4 class="modal-title">Edit Venue Detail</h4>
</div>
<div class="modal-body">
<div class="form-group">
<label class="control-label col-sm-3"><b>Venue12</b></label>
<div class="control-label col-sm-9 text-left">
<input id="venue" name="venue" class="form-control venue_name" placeholder="Enter venue" type="text">
<span class="error"></span>
<span class="error"></span>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-3"><b>Room/Stage</b></label>
<div class="control-label col-sm-9 text-left">
<input id="roomStage" name="roomStage" class="form-control" placeholder="Enter room/stage" type="text">
<span class="error"></span>
</div>
</div>
</div>
<div class="modal-footer">
<button type="button" data-dismiss="modal" class="btn red">Cancel</button>
<button type="button" data-dismiss="modal" class="btn green btn_save">Save</button>
</div>
</div>
</form>
</div>
</div>
When I click on button open modal, I'd like to on click button fill up the data in perticular textbox using javascript dynamically.
on button click i got response like this {"id":67,"value":"venue 1","Xvalue":"venue 1"}
i tried to : $('#venue_name').val(msg.value);
but instead of #venue_name I want to use the closest().
How can I do this?

If I understand your question right, you want to set the value in the input box of model from the message.
You need to use the shown.bs.modal event of the modal.
var msg = {"id":67,"value":"venue 1","Xvalue":"venue 1"};
$('#edit-venue').on('show.bs.modal', function (e) {
$("#venue").val(msg.value);
})
JSFIDDLE : https://jsfiddle.net/01zrxq7y/1/
Boostrap Doc : http://getbootstrap.com/javascript/#modals-events

Dynamically replace href

I have the following lines of code in my website - CodePen.
What I am trying to do, is make it so that the user must fill in the form first, before downloading an item:
<div class="container">
<!-- Trigger the modal with a button -->
Download Item #1
Download Item #2
<!-- Modal -->
<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Modal Header</h4>
</div>
<div class="modal-body">
<form role="form">
<div class="form-group">
<label for="email">Email address:</label>
<input type="email" class="form-control" id="email">
</div>
<div class="form-group">
<label for="pwd">Password:</label>
<input type="password" class="form-control" id="pwd">
</div>
<div class="checkbox">
<label>
<input type="checkbox"> Remember me</label>
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
How can I make it so that when the user selects the first or second button on the page, it will send this information to the submit button?

You could store the link in a variable. Then, when the button is clicked, check if the fields are empty (and apply any validation rules). If not empty, apply the submit to the form.
$link = 'example.com/download.pdf';
$('.button').click(function(){
// CHECK THE FIELDS ARE NOT EMPTY
// APPLY YOUR OWN VALIDATION
if($field1 = $('.field1').val() != '' && $('.field2').val() != ''){
// DO WHAT YOU NEED TO DO WITH THE LINK
$('form').submit();
}
})
On a side note, it's possible that you were down-voted (not by myself) for not providing us with your attempts to solve your own problem. You provided us with your html but not any of your tested logic.

You add a click handler to your button in JavaScript :
var fieldsAreReadyToBeSent = function() {
// Validation code goes here
// return true if valid & false if invalid
};
document.querySelector("[type=submit]").addEventListener("click", function() {
if(!fieldsAreReadyToBeSent()) {
event.preventDefault();
}
});
The method event.preventDefault() prevents your your form from being submitted if it is considered invalid!
A demo :
var fieldsAreReadyToBeSent = function() {
return false; // FOR THIS DEMO, ALWAYS RETURN FALSE
};
document.querySelector("[type=submit]").addEventListener("click", function() {
if(!fieldsAreReadyToBeSent()) { // FOR THIS DEMO, THIS IS ALWAYS TRUE
event.preventDefault();
}
});
<div class="container">
<!-- Trigger the modal with a button -->
Download Item #1
Download Item #2
<!-- Modal -->
<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Modal Header</h4>
</div>
<div class="modal-body">
<form role="form">
<div class="form-group">
<label for="email">Email address:</label>
<input type="email" class="form-control" id="email">
</div>
<div class="form-group">
<label for="pwd">Password:</label>
<input type="password" class="form-control" id="pwd">
</div>
<div class="checkbox">
<label>
<input type="checkbox"> Remember me</label>
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>

I can't clear form data from bootstrap modal

i have a little problem when im trying to clear bootstrap modal data..
there is my modal.
<div id="modal-creacion-alias" class="modal fade" tabindex="-1" data-backdrop="static" data-keyboard="false">
<div class="modal-dialog">
<form id="form-alias-dominio" method="POST" class="form">
<div class="modal-content">
<div class="form-body">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true"></button>
<h2 class="modal-title">Alias de dominios</h2>
</div>
<div class="modal-body">
<div class="form-group">
<label class="col-md-4 control-label">Nombre del Alias<span class="required">*</span></label>
<div class="col-md-8">
<div class="input-icon right">
<i class="fa fa-info-circle tooltips" data-original-title="Contraseña" data-container="body"></i>
<input type="text" class="form-control" name="nombre-alias-dominio" id="nombre-alias-dominio">
<br>
</div>
</div>
</div>
<div class="clearfix"></div>
</div>
<div class="modal-footer ">
<button type="button" data-dismiss="modal" class="btn default">Cancelar <i class="fa fa-sign-out"></i></button>
<button type="submit" id="crear-alias-domino" class="btn gtd-blue-hard crear-alias-domino">Crear <i class="fa fa-plus"></i></button>
</div>
</div>
</div>
</form>
</div>
</div>
and this is the js function:
$('body').on('hide.bs.modal', '.modal', function () {
&(this).removeData('bs.modal');
});
but when i close and re open modal the data still there.
how can i solve it?
thanks.

You can reset all input data by using $(form).trigger('reset')
$('body').on('hide.bs.modal', '.modal', function () {
$('#form-alias-dominio').trigger("reset"); //here your form_id
});

I was able to clear data doing this
$('body').on('hide.bs.modal', '.modal', function (e) {
$(this).find('form').trigger("reset");
});
thanks #Sadikhasan