I am going to make a button to take an action and save the data into a database.
Once the user clicks on the button, I want a JavaScript alert to offer “yes” and “cancel” options. If the user selects “yes”, the data will be inserted into the database, otherwise no action will be taken.
How do I display such a dialog?
You’re probably looking for confirm(), which displays a prompt and returns true or false based on what the user decided:
if (confirm('Are you sure you want to save this thing into the database?')) {
// Save it!
console.log('Thing was saved to the database.');
} else {
// Do nothing!
console.log('Thing was not saved to the database.');
}
var answer = window.confirm("Save data?");
if (answer) {
//some code
}
else {
//some code
}
Use window.confirm instead of alert. This is the easiest way to achieve that functionality.
How to do this using 'inline' JavaScript:
<form action="http://www.google.com/search">
<input type="text" name="q" />
<input type="submit" value="Go"
onclick="return confirm('Are you sure you want to search Google?')"
/>
</form>
Avoid inline JavaScript - changing the behaviour would mean editing every instance of the code, and it isn’t pretty!
A much cleaner way is to use a data attribute on the element, such as data-confirm="Your message here". My code below supports the following actions, including dynamically-generated elements:
a and button clicks
form submits
option selects
jQuery:
$(document).on('click', ':not(form)[data-confirm]', function(e){
if(!confirm($(this).data('confirm'))){
e.stopImmediatePropagation();
e.preventDefault();
}
});
$(document).on('submit', 'form[data-confirm]', function(e){
if(!confirm($(this).data('confirm'))){
e.stopImmediatePropagation();
e.preventDefault();
}
});
$(document).on('input', 'select', function(e){
var msg = $(this).children('option:selected').data('confirm');
if(msg != undefined && !confirm(msg)){
$(this)[0].selectedIndex = 0;
}
});
HTML:
<!-- hyperlink example -->
Anchor
<!-- button example -->
<button type="button" data-confirm="Are you sure you want to click the button?">Button</button>
<!-- form example -->
<form action="http://www.example.com" data-confirm="Are you sure you want to submit the form?">
<button type="submit">Submit</button>
</form>
<!-- select option example -->
<select>
<option>Select an option:</option>
<option data-confirm="Are you want to select this option?">Here</option>
</select>
JSFiddle demo
You have to create a custom confirmBox. It is not possible to change the buttons in the dialog displayed by the confirm function.
jQuery confirmBox
See this example: https://jsfiddle.net/kevalbhatt18/6uauqLn6/
<div id="confirmBox">
<div class="message"></div>
<span class="yes">Yes</span>
<span class="no">No</span>
</div>
function doConfirm(msg, yesFn, noFn)
{
var confirmBox = $("#confirmBox");
confirmBox.find(".message").text(msg);
confirmBox.find(".yes,.no").unbind().click(function()
{
confirmBox.hide();
});
confirmBox.find(".yes").click(yesFn);
confirmBox.find(".no").click(noFn);
confirmBox.show();
}
Call it by your code:
doConfirm("Are you sure?", function yes()
{
form.submit();
}, function no()
{
// Do nothing
});
Pure JavaScript confirmBox
Example: http://jsfiddle.net/kevalbhatt18/qwkzw3rg/127/
<div id="id_confrmdiv">confirmation
<button id="id_truebtn">Yes</button>
<button id="id_falsebtn">No</button>
</div>
<button onclick="doSomething()">submit</button>
Script
<script>
function doSomething(){
document.getElementById('id_confrmdiv').style.display="block"; //this is the replace of this line
document.getElementById('id_truebtn').onclick = function(){
// Do your delete operation
alert('true');
};
document.getElementById('id_falsebtn').onclick = function(){
alert('false');
return false;
};
}
</script>
CSS
body { font-family: sans-serif; }
#id_confrmdiv
{
display: none;
background-color: #eee;
border-radius: 5px;
border: 1px solid #aaa;
position: fixed;
width: 300px;
left: 50%;
margin-left: -150px;
padding: 6px 8px 8px;
box-sizing: border-box;
text-align: center;
}
#id_confrmdiv button {
background-color: #ccc;
display: inline-block;
border-radius: 3px;
border: 1px solid #aaa;
padding: 2px;
text-align: center;
width: 80px;
cursor: pointer;
}
#id_confrmdiv .button:hover
{
background-color: #ddd;
}
#confirmBox .message
{
text-align: left;
margin-bottom: 8px;
}
Or simply:
click me!
This plugin can help you jquery-confirm easy to use
$.confirm({
title: 'Confirm!',
content: 'Simple confirm!',
confirm: function(){
alert('Confirmed!');
},
cancel: function(){
alert('Canceled!')
}
});
This a full responsive solution using vanilla javascript :
// Call function when show dialog btn is clicked
document.getElementById("btn-show-dialog").onclick = function(){show_dialog()};
var overlayme = document.getElementById("dialog-container");
function show_dialog() {
/* A function to show the dialog window */
overlayme.style.display = "block";
}
// If confirm btn is clicked , the function confim() is executed
document.getElementById("confirm").onclick = function(){confirm()};
function confirm() {
/* code executed if confirm is clicked */
overlayme.style.display = "none";
}
// If cancel btn is clicked , the function cancel() is executed
document.getElementById("cancel").onclick = function(){cancel()};
function cancel() {
/* code executed if cancel is clicked */
overlayme.style.display = "none";
}
.popup {
width: 80%;
padding: 15px;
left: 0;
margin-left: 5%;
border: 1px solid rgb(1,82,73);
border-radius: 10px;
color: rgb(1,82,73);
background: white;
position: absolute;
top: 15%;
box-shadow: 5px 5px 5px #000;
z-index: 10001;
font-weight: 700;
text-align: center;
}
.overlay {
position: fixed;
width: 100%;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0,0,0,.85);
z-index: 10000;
display :none;
}
#media (min-width: 768px) {
.popup {
width: 66.66666666%;
margin-left: 16.666666%;
}
}
#media (min-width: 992px) {
.popup {
width: 80%;
margin-left: 25%;
}
}
#media (min-width: 1200px) {
.popup {
width: 33.33333%;
margin-left: 33.33333%;
}
}
.dialog-btn {
background-color:#44B78B;
color: white;
font-weight: 700;
border: 1px solid #44B78B;
border-radius: 10px;
height: 30px;
width: 30%;
}
.dialog-btn:hover {
background-color:#015249;
cursor: pointer;
}
<div id="content_1" class="content_dialog">
<p>Lorem ipsum dolor sit amet. Aliquam erat volutpat. Maecenas non tortor nulla, non malesuada velit.</p>
<p>Aliquam erat volutpat. Maecenas non tortor nulla, non malesuada velit. Nullam felis tellus, tristique nec egestas in, luctus sed diam. Suspendisse potenti.</p>
</div>
<button id="btn-show-dialog">Ok</button>
<div class="overlay" id="dialog-container">
<div class="popup">
<p>This will be saved. Continue ?</p>
<div class="text-right">
<button class="dialog-btn btn-cancel" id="cancel">Cancel</button>
<button class="dialog-btn btn-primary" id="confirm">Ok</button>
</div>
</div>
</div>
You can intercept the onSubmit event using JavaScript.
Then call a confirmation alert and then grab the result.
Another way to do this:
$("input[name='savedata']").click(function(e){
var r = confirm("Are you sure you want to save now?");
//cancel clicked : stop button default action
if (r === false) {
return false;
}
//action continues, saves in database, no need for more code
});
xdialog provides a simple API xdialog.confirm(). Code snippet is following. More demos can be found here
document.getElementById('test').addEventListener('click', test);
function test() {
xdialog.confirm('Are you sure?', function() {
// do work here if ok/yes selected...
console.info('Done!');
}, {
style: 'width:420px;font-size:0.8rem;',
buttons: {
ok: 'yes text',
cancel: 'no text'
},
oncancel: function() {
console.warn('Cancelled!');
}
});
}
<link href="https://cdn.jsdelivr.net/gh/xxjapp/xdialog#3/xdialog.min.css" rel="stylesheet"/>
<script src="https://cdn.jsdelivr.net/gh/xxjapp/xdialog#3/xdialog.min.js"></script>
<button id="test">test</button>
Made super simple, tiny vanilla js confirm dialog with Yes and No buttons.
It's a pity we can't customize the native one.
https://www.npmjs.com/package/yesno-dialog.
Another solution apart from the others is to use the new dialog element. You need to make use of show or showModal methods based on interactivity with other elements. close method can be used for closing the open dialog box.
<dialog>
<button class="yes">Yes</button>
<button class="no">No</button>
</dialog>
const dialogEl = document.querySelector("dialog");
const openDialog = document.querySelector("button.open-dialog");
const yesBtn = document.querySelector(".yes");
const noBtn = document.querySelector(".no");
const result = document.querySelector(".result");
openDialog.addEventListener("click", () => {
dialogEl.showModal();
});
yesBtn.addEventListener("click", () => {
// Below line can be replaced by your DB query
result.textContent = "This could have been your DB query";
dialogEl.close();
});
noBtn.addEventListener("click", () => {
result.textContent = "";
dialogEl.close();
});
#import url('https://fonts.googleapis.com/css2?family=Roboto:wght#300&display=swap');
body {
font-family: "Roboto";
}
button {
background: hsl(206deg 64% 51%);
color: white;
padding: 0.5em 1em;
border: 0 none;
cursor: pointer;
}
dialog {
border: 0 none;
}
.result {
margin-top: 1em;
}
<dialog>
<button class="yes">Yes</button>
<button class="no">No</button>
</dialog>
<button class="open-dialog">Click me</button>
<div class="result"></div>
Can I use?
Right now the compatibility is great with all the modern browsers.
I'm currently working on a web workflow which already has it's own notifications/dialog boxes, and I recently (like, today) created a tiny, custom (and tailored to the project needs) YES/NO dialog box.
All dialog boxes appeard over a modal layer. Full user attention is required.
I define the options configurations in this way. This options are used to define the buttons text, and the values associated to each button when there clicked:
optionsConfig = [
{ text: 'Yes', value: true },
{ text: 'No', value: false }
]
The use of the function goes something like this:
const answer = await notifier.showDialog('choose an option', options.config);
if (answer) {
// 'Yes' was clicked
} else {
// 'No' was clicked!
}
What I do, it's simply creating a async event handler for each option, it means, there is a simple handler assigned to each button. Each handler returns the value of the option. The handlers are pushed inside an array.
The array is then passed to Promise.race, and that is the return value of the showDialog method, which will correspond to the value's actual value (the one returned by the handler).
Can't provide too much code. As I said it's a very specific case, but the idea may be usefull for other implementations. Twenty lines of code or so.
A vanilla JavaScript option with a class for creating the custom modal dialog which includes a text box:
jsfiddle:
https://jsfiddle.net/craigdude/uh82mjtb/2/
html:
<!DOCTYPE html>
<html>
<style>
.modal_dialog
{
box-sizing: border-box;
background-color: #ededed;
border-radius: 5px;
border: 0.5px solid #ccc;
font-family: sans-serif;
left: 30%;
margin-left: -50px;
padding: 15px 10px 10px 5px;
position: fixed;
text-align: center;
width: 320px;
}
</style>
<script src="./CustomModalDialog.js"></script>
<script>
var gCustomModalDialog = null;
/** this could be static html from the page in an "invisible" state */
function generateDynamicCustomDialogHtml(){
var html = "";
html += '<div id="custom_modal_dialog" class="modal_dialog">';
html += 'Name: <input id="name" placeholder="Name"></input><br><br>';
html += '<button id="okay_button">OK</button>';
html += '<button id="cancel_button">Cancel</button>';
html += '</div>';
return html;
}
function onModalDialogOkayPressed(event) {
var name = document.getElementById("name");
alert("Name entered: "+name.value);
}
function onModalDialogCancelPressed(event) {
gCustomModalDialog.hide();
}
function setupCustomModalDialog() {
var html = generateDynamicCustomDialogHtml();
gCustomModalDialog = new CustomModalDialog(html, "okay_button", "cancel_button",
"modal_position", onModalDialogOkayPressed, onModalDialogCancelPressed);
}
function showCustomModalDialog() {
if (! gCustomModalDialog) {
setupCustomModalDialog();
}
gCustomModalDialog.show();
gCustomModalDialog.setFocus("name");
}
</script>
<body>
<button onclick="showCustomModalDialog(this)">Show Dialog</button><br>
Some content
<div id="modal_position">
</div>
Some additional content
</body>
</html>
CustomModalDialog.js:
/** Encapsulates a custom modal dialog in pure JS
*/
class CustomModalDialog {
/**
* Constructs the modal content
* #param htmlContent - content of the HTML dialog to show
* #param okayControlElementId - elementId of the okay button, image or control
* #param cancelControlElementId - elementId of the cancel button, image or control
* #param insertionElementId - elementId of the <div> or whatever tag to
* insert the html at within the document
* #param callbackOnOkay - method to invoke when the okay button or control is clicked.
* #param callbackOnCancel - method to invoke when the cancel button or control is clicked.
* #param callbackTag (optional) - to allow object to be passed to the callbackOnOkay
* or callbackOnCancel methods when they're invoked.
*/
constructor(htmlContent, okayControlElementId, cancelControlElementId, insertionElementId,
callbackOnOkay, callbackOnCancel, callbackTag) {
this.htmlContent = htmlContent;
this.okayControlElementId = okayControlElementId;
this.cancelControlElementId = cancelControlElementId;
this.insertionElementId = insertionElementId;
this.callbackOnOkay = callbackOnOkay;
this.callbackOnCancel = callbackOnCancel;
this.callbackTag = callbackTag;
}
/** shows the custom modal dialog */
show() {
// must insert the HTML into the page before searching for ok/cancel buttons
var insertPoint = document.getElementById(this.insertionElementId);
insertPoint.innerHTML = this.htmlContent;
var okayControl = document.getElementById(this.okayControlElementId);
var cancelControl = document.getElementById(this.cancelControlElementId);
okayControl.addEventListener('click', event => {
this.callbackOnOkay(event, insertPoint, this.callbackTag);
});
cancelControl.addEventListener('click', event => {
this.callbackOnCancel(event, insertPoint, this.callbackTag);
});
} // end: method
/** hide the custom modal dialog */
hide() {
var insertPoint = document.getElementById(this.insertionElementId);
var okayControl = document.getElementById(this.okayControlElementId);
var cancelControl = document.getElementById(this.cancelControlElementId);
insertPoint.innerHTML = "";
okayControl.removeEventListener('click',
this.callbackOnOkay,
false
);
cancelControl.removeEventListener('click',
this.callbackOnCancel,
false
);
} // end: method
/** sets the focus to given element id
*/
setFocus(elementId) {
var focusElement = document.getElementById(elementId);
focusElement.focus();
if (typeof focusElementstr === "HTMLInputElement")
focusElement.select();
}
} // end: class
The easiest way to ask before action on click is following
<a onclick="return askyesno('Delete this record?');" href="example.php?act=del&del_cs_id=<?php echo $oid; ?>">
<button class="btn btn-md btn-danger">Delete </button>
</a>
document.getElementById("button").addEventListener("click", function(e) {
var cevap = window.confirm("Satın almak istediğinizden emin misiniz?");
if (cevap) {
location.href='Http://www.evdenevenakliyat.net.tr';
}
});
Related
I have reviewed tonnes of articles and all solutions only update the visually displayed value as opposed to the actual value within the input tag itself.
When I click on a button a modal appears with a text input to enter a code. We will call it input1
Upon entering the code and exiting the modal the button updates to the code entered and a hidden input value gets updated as well. However the actual tags value="" remains the same.
I have tried numerous ways but all seem to only update the visual and not the true value.
Here is what I have so far but it only updates the value you see in the browser not within the tag itself.
let promoModal = document.getElementById("promoModal");
let promoBtn = document.getElementById("promo");
let promoSpan = document.getElementsByClassName("promoClose")[0];
promoBtn.onclick = function() {
promoModal.style.display = "block";
}
promoSpan.onclick = function() {
promoModal.style.display = "none";
}
window.onclick = function(event) {
if (event.target == promoModal) {
promoModal.style.display = "none";
}
}
function updatePromo() {
let promoValue = document.getElementById("promo-value");
let producePromo = document.getElementById("promo");
let copyPromo = document.getElementById("promo-value-copy");
producePromo.innerHTML = promoValue.value;
copyPromo.innerHTML = promoValue.value;
}
/* THE MODAL */
.modal {
display: none;
position: fixed;
z-index: 1;
padding-top: 100px;
left: 0;
top: 0;
width: 100%;
height: 100%;
overflow: auto;
.modal-content {
background-color: #fefefe;
margin: auto;
padding: 5px 20px;
border: 1px solid #888;
width: 280px;
position: relative;
}
}
/* The Close Button */
.adultClose,
.promoClose {
color: #aaaaaa;
position: absolute;
right: 5px;
top: 0px;
font-size: 22px;
font-weight: bold;
cursor: pointer;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
<button id="promo" type="button" class="promo">
<span class="promoCode">Promo Code +</span>
</button>
<input type="hidden" id="promo-value-copy" value="test">
<!-- Promo Modal -->
<div id="promoModal" class="modal">
<div class="modal-content">
<span class="promoClose">×</span>
<input type="text" class="promo-value" id="promo-value" value="" placeholder="Promotional code" onchange="updatePromo()">
</div>
</div>
I stripped the styling to get to the meat and potatoes.
How can I update the actual value="test" to the new value using javascript?
The innerHTML is used for changing HTML content, so for instance you can use it for changing the content of a paragraph <p id="text-to-change"></p>.
To change the input value you can use the .value property of the object.
Try to change the following line copyPromo.innerHTML = promoValue.value; with copyPromo.value = promoValue.value;
You need to change the value like this:
document.getElementById("promo-value-copy").value = promoValue.value;
so going with Barmar's suggestion I was able to update my updatePromo function to both produce the value as well as update the DOM value.
Here is the updated function. I hope it helps the community.
function updatePromo() {
let promoValue = document.getElementById("promo-value");
let producePromo = document.getElementById("promo");
let copyPromo = document.getElementById("promo-value-copy");
producePromo.innerHTML = promoValue.value;
copyPromo.innerHTML = promoValue.value;
copyPromo.setAttribute("value", promoValue.value); // suggestion given by Barmar
}
I had to leave the other element as it adds the text after the form field which is actually needed for this project however typically would not be needed.
I'm making a note taker app that gives you the option to view said note in a modal whenever the button is clicked. The HTML for the note and modal is dynamically generated by event listeners. There are two ways the close the modal, by clicking the "X" button or by clicking outside of the modal. The program has full functionality whenever only one note is generated, but once I generate a second note the code breaks down. Once this happens only I'm able to open the modal of the first note generated, but not close it. And the second one won't open whatsoever. How could I fix this issue?
class Input {
constructor(note) {
this.note = note;
}
}
class UI {
addNote(input) {
// Get table body below form
const content = document.querySelector(".content");
// Create tr element
const row = document.createElement("tr");
// Insert new HTML into div
row.innerHTML = `
<td>
${input.note}
<br><br>
<button class="modalBtn">View Note</button>
</td>
`;
content.appendChild(row);
// Event listener to make modal
document.querySelector(".modalBtn").addEventListener("click", function(e) {
// Get container div
const container = document.querySelector(".container");
// Create div
const div = document.createElement("div");
// Assign class to it
div.className = "modal";
// Insert HTML into div
div.innerHTML = `
<div class="modal-content">
<span class="closeBtn">×</span>
<div>
<p>${input.note}</p>
</div>
</div>
`;
// Append the new div to the container div
container.appendChild(div);
// Get modal
const modal = document.querySelector(".modal");
// Event listener to close modal when "x" is clicked
document.querySelector(".closeBtn").addEventListener("click", function() {
container.removeChild(modal);
});
// Event listener to close when the window outside the modal is clicked
window.addEventListener("click", function(e) {
if (e.target === modal) {
container.removeChild(modal);
}
});
});
}
// Clear input field
clearInput() {
note.value = "";
}
}
// Event listener for addNote
document.getElementById("note-form").addEventListener("submit", function(e) {
// Get form value
const note = document.getElementById("note").value;
// Instantiate note
const input = new Input(note);
// Instantiate UI
const ui = new UI();
// Validate form (make sure input is filled)
if (note === "") {
// Error alert
alert("Please fill in text field!");
}
else {
// Add note
ui.addNote(input);
// Clear input field
ui.clearInput();
}
e.preventDefault();
});
h5 {
color: green;
}
.modal {
position: fixed;
z-index: 1;
left: 0;
top: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.5);
}
.modal-content {
background-color: #fff;
margin: 20% auto;
padding: 30px;
width: 70%;
box-shadow: 0 5px 8px 0 rgba(0, 0, 0, 0.2), 0 7px 20px 0 rgba(0, 0, 0, 0.17);
animation-name: modalopen;
animation-direction: 1s;
}
.closeBtn {
color: #aaa;
/* float: right; */
font-size: 30px;
margin-bottom: 1rem;
padding-bottom: 1rem;
}
.closeBtn:hover,
.closeBtnBtn:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
.closeBtn + div {
margin-top: 2rem;
}
#keyframes modalopen {
from {
opacity: 0;
}
to {
opacity: 1;
}
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/skeleton/2.0.4/skeleton.css" integrity="sha512-5fsy+3xG8N/1PV5MIJz9ZsWpkltijBI48gBzQ/Z2eVATePGHOkMIn+xTDHIfTZFVb9GMpflF2wOWItqxAP2oLQ==" crossorigin="anonymous" />
<link rel="stylesheet" href="style.css">
<title>Note Taker</title>
</head>
<body>
<div class="container">
<h1>Note Taker</h1>
<h5>Add A New Note:</h5>
<form id="note-form">
<div>
<label>Note:</label>
<textarea name="Note" id="note" class="u-full-width"> </textarea>
</div>
<div>
<button type="submit" class="button-primary">Add Note</button>
</div>
</form>
<table>
<tbody class="content"></tbody>
</table>
</div>
<script src="app.js"></script>
</body>
</html>
Fist of all.. I love your syntaxt!! Best I've seen so far! second.. you do a general query Selector and don't handle them separately. Can that be an issue?
EDIT:
Because of reasons I'll reformulated my answer..
document.querySelector('class') returns an Html-Collection with DOM element references containing the specified html class and should be handled separately.
I am trying to open a window and process the file in the calling JavaScript. I can pass the file name using localStorage but if I return the file I can't get it right.
I can't use this solution due to restrictions of the system I am calling the JavaScript from:
var fileSelector = document.createElement('input');
fileSelector.setAttribute('type', 'file');
fileSelector.click();
Can a file object be passed using localStorage or should I use another method?
My code is:
<!DOCTYPE html>
<html>
<script language="JavaScript">
function testInjectScript2(){
try {
var myhtmltext =
'<input type="file" id="uploadInput3" name=\"files[]" onchange=\'localStorage.setItem("myfile",document.getElementById("uploadInput3").files[0]);\' multiple />';
console.log("myhtmltext="+myhtmltext);
var newWin2 = window.open('',"_blank", "location=200,status=1,scrollbars=1, width=500,height=200");
newWin2.document.body.innerHTML = myhtmltext;
newWin2.addEventListener("unload", function (e) {
if(localStorage.getItem("myfile")) {
var f = localStorage.getItem("myfile");
alert ('in function.f='+f);
alert ('in function.f.name='+(f).name);
localStorage.removeItem("myfile");
}
});
} catch (err) {
alert(err);
}
}
</script>
<body>
<input type="button" text="testInjectScript2" onclick="testInjectScript2()" value="testInjectScript2" />
</body>
</html>
First of all, welcome to SO. If I get you right, you want to upload a file using a new window and get that file using localStorage onto your main page. This is a possible solution. However, please do also note that the maximum size of the localStorage can vary depending on the user-agent (more information here). Therefore it is not recommend to use this method. If you really want to do this, please have a look at the first snippet.
var read = document.getElementById("read-value"), open_win = document.getElementById("open-win"), win, p = document.getElementById("file-set");
open_win.addEventListener("click", function(){
win = window.open("", "", "width=200,height=100");
win.document.write(
'<input id="file-input" type="file"/>' +
'<script>' +
'var input = document.getElementById("file-input");' +
'input.addEventListener("change", function(){window.localStorage.setItem("file", input.files[0]);})'+
'<\/script>'
);
})
read.addEventListener("click", function(){
var file = window.localStorage.getItem("file");
if(file){
p.innerText = "file is set";
}else{
p.innerText = "file is not set";
}
})
<button id="open-win">Open window</button>
<br><br>
<!-- Check if file is set in localStorage -->
<button id="read-value">Check</button>
<p id="file-set" style="margin: 10px 0; font-family: monospace"></p>
<i style="display: block; margin-top: 20px">Note: This only works locally as SO snippets lack the 'allow same origin' flag. i.e. just copy the html and js into a local file to use it.</i>
However, why not use a more elegant solution:
Simply using a modal. When the input value changes you can simply close the modal and get the file value without all the hassle of a localStorage.
// Get the modal, open button and close button
var modal = document.getElementById('modal'),
btn = document.getElementById("open-modal"),
span = document.getElementById("close"),
input = document.getElementById("file-input"),
label = document.getElementById("input-label"), file;
// When the user clicks the button, open the modal
btn.addEventListener("click", function() {
modal.style.display = "block";
})
// When the user clicks on <span> (x), close the modal
span.addEventListener("click", function() {
modal.style.display = "none";
})
input.addEventListener("change", function(){
file = input.files[0];
modal.style.display = "none";
//Change value of the label for nice styling ;)
label.innerHTML = input.files[0].name;
//do something with your value
})
// When the user clicks anywhere outside of the modal, close it
window.addEventListener("click", function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
})
.modal {
display: none; /* Hidden by default */
position: fixed; /* Stay in place */
z-index: 1; /* Sit on top */
padding-top: 10px; /* Location of the box */
left: 0;
top: 0;
width: 100%; /* Full width */
height: 100%; /* Full height */
overflow: auto; /* Enable scroll if needed */
background-color: rgb(0,0,0); /* Fallback color */
background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}
.modal h2 {
font-family: sans-serif;
font-weight: normal;
}
/* Modal Content */
.modal-content {
background-color: #fefefe;
margin: auto;
padding: 20px;
border: 1px solid #888;
width: 80%;
}
/* The Close Button */
.close {
color: #aaaaaa;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
/* Input styles, added bonus */
.file-input {
width: 0.1px;
height: 0.1px;
opacity: 0;
overflow: hidden;
position: absolute;
z-index: -1;
}
.file-input + label {
font-size: 1.25em;
font-weight: 700;
padding: 10px 20px;
border: 1px solid #888;
display: inline-block;
cursor: pointer;
font-family: sans-serif;
}
.file-input:focus + label,
.file-input + label:hover {
background-color: #f7f7f7;
}
<!-- Trigger/Open The Modal -->
<button id="open-modal">Open Modal</button>
<!-- The Modal -->
<div id="modal" class="modal">
<!-- Modal content -->
<div class="modal-content">
<span id="close" class="close">×</span>
<h2><i>Upload a file?</i></h3>
<input id="file-input" name="file-input" class="file-input" type="file"/>
<label id="input-label" for="file-input">Upload a file</label>
</div>
</div>
Hope it helps! Let me know!
Cheers!
I'm wondering if it's possible to on each appendTo make the new div unique but still use the same jquery.
As you can see in the mark-up below, each new div shares the same jquery so doesn't work independently.
Within my Javascript i'm selecting the ID to fire each function.
I've tried just adding + 1 etc to the end of each ID, but with that it changes the name of the ID making the new created DIV not function.
I've thought of using DataAttribues, but i'd still have the same issue having to create multiple functions all doing the same job.
Any ideas?
Thanks
$(function() {
var test = $('#p_test');
var i = $('#p_test .upl_drop').length + 1;
$('#addtest').on('click', function() {
$('<div class="file-input"><div class="input-file-container upl_drop"><label for="p_test" class="input-file-trigger">Select a file...<input type="file" id="p_test" name="p_test_' + i + '" value=""class="input-file"></label></div><span class="remtest">Remove</span><p class="file-return"></p></div>').appendTo(test);
i++;
});
$('body').on('click', '.remtest', function(e) {
if (i > 2) {
$(this).closest('.file-input').remove();
i--;
}
});
});
var input = document.getElementById( 'file-upload' );
var infoArea = document.getElementById( 'file-upload-filename' );
input.addEventListener( 'change', showFileName );
function showFileName( event ) {
// the change event gives us the input it occurred in
var input = event.srcElement;
// the input has an array of files in the `files` property, each one has a name that you can use. We're just using the name here.
var fileName = input.files[0].name;
// use fileName however fits your app best, i.e. add it into a div
textContent = 'File name: ' + fileName;
$("#input-file-trigger").text(function () {
return $(this).text().replace("Select a file...", textContent);
});
}
/*
#### Drag & Drop Box ####
*/
.p_test{
display: inline-block;
}
.upl_drop{
border: 2px dashed #000;
margin: 0px 0px 15px 0px;
}
.btn--add p{
cursor: pointer;
}
.input-file-container {
position: relative;
width: auto;
}
.input-file-trigger {
display: block;
padding: 14px 45px;
background: #ffffff;
color: #1899cd;
font-size: 1em;
cursor: pointer;
}
.input-file {
position: absolute;
top: 0; left: 0;
width: 225px;
opacity: 0;
padding: 14px 0;
cursor: pointer;
}
.input-file:hover + .input-file-trigger,
.input-file:focus + .input-file-trigger,
.input-file-trigger:hover,
.input-file-trigger:focus {
background: #1899cd;
color: #ffffff;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div class="p_test" id="p_test">
<div class="file-input">
<div class="input-file-container upl_drop">
<input class="input-file" id="file-upload" type="file">
<label tabindex="0" for="file-upload" id="input-file-trigger" class="input-file-trigger">Select a file...</label>
</div>
<div id="file-upload-filename"></div>
</div>
<button class="btn--add" id="addtest">
Add
</button>
</div>
I'd advise against using incremental id attributes. They become a pain to maintain and also make the logic much more complicated than it needs to be.
The better alternative is to use common classes along with DOM traversal to relate the elements to each other, based on the one which raised any given event.
In your case, you can use closest() to get the parent .file-input container, then find() any element within that by its class. Something like this:
$(function() {
var $test = $('#p_test');
$('#addtest').on('click', function() {
var $lastGroup = $test.find('.file-input:last');
var $clone = $lastGroup.clone();
$clone.find('.input-file-trigger').text('Select a file...');
$clone.insertAfter($lastGroup);
});
$test.on('click', '.remtest', function(e) {
if ($('.file-input').length > 1)
$(this).closest('.file-input').remove();
}).on('change', '.input-file', function(e) {
if (!this.files)
return;
var $container = $(this).closest('.file-input');
$container.find(".input-file-trigger").text('File name: ' + this.files[0].name);
});
});
.p_test {
display: inline-block;
}
.upl_drop {
border: 2px dashed #000;
margin: 0px 0px 15px 0px;
}
.btn--add p {
cursor: pointer;
}
.input-file-container {
position: relative;
width: auto;
}
.input-file-trigger {
display: block;
padding: 14px 45px;
background: #ffffff;
color: #1899cd;
font-size: 1em;
cursor: pointer;
}
.input-file {
position: absolute;
top: 0;
left: 0;
width: 225px;
opacity: 0;
padding: 14px 0;
cursor: pointer;
}
.input-file:hover+.input-file-trigger,
.input-file:focus+.input-file-trigger,
.input-file-trigger:hover,
.input-file-trigger:focus {
background: #1899cd;
color: #ffffff;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div class="p_test" id="p_test">
<div class="file-input">
<div class="input-file-container upl_drop">
<input class="input-file" type="file">
<label tabindex="0" for="file-upload" class="input-file-trigger">Select a file...</label>
</div>
<div class="file-upload-filename"></div>
</div>
<button class="btn--add" id="addtest">Add</button>
</div>
Note that I've made a couple of other optimisations to the code. Firstly it now makes a clone() of the last available .file-input container when the Add button is clicked. This is preferred over writing the HTML in the JS file as it keeps the two completely separate. For example, if you need to update the UI, you don't need to worry about updating the JS now, as long as the classes remain the same.
Also note that you were originally mixing plain JS and jQuery event handlers. It's best to use one or the other. As you've already included jQuery in the page, I used that as it makes the code easier to write and more succinct.
Finally, note that you didn't need to provide a function to text() as you're completely over-writing the existing value. Just providing the new string is fine.
I want to set up a functionality for a button that causes text to appear underneath it on click.
For example, when you click a button that says "Sign up now", text would appear underneath the button that says "Are you a member, yes or no?".
"Yes" and "No" would be links that bring you to a different page depending on how you answer.
My button code so far (just html and styling done):
<a href="/ticket-link" target="_blank" class="ticket-button">Sign Up
Now</a>
I'm new with this kind of functionality so any help would be greatly appreciated!
Thanks!
Adjust the href attribute as you want.
$('#btn').click(function() {
$('#modal').fadeIn();
});
a {
display: block;
text-decoration: none;
color: white;
background-color: #333;
width: 100px;
padding: 20px;
border-radius: 5px;
margin: 0 auto;
}
#modal {
width: 300px;
height: 120px;
background-color: #ccc;
border-radius: 5px;
margin: 0 auto;
display: none;
}
#modal h3 {
text-align: center;
padding: 10px;
}
#modal a {
width: 50px;
display: inline-block;
text-align: center;
margin: 0 auto;
height: 10px;
vertical-align: middle;
line-height: 10px;
}
.btns {
width: 200px;
margin: auto;
}
a:hover {
background-color: #666;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a href="/ticket-link" target="_blank" class="ticket-button" id='btn'>Sign Up Now</a>
<div id='modal'>
<h3>Are you a member?</h3>
<div class='btns'>
Yes
No
</div>
</div>
You could use the onClick function to unhide text, or elements, below it.
Sign Up Now
<span style="display:none;" id="text">This is some text :D</span>
simple way:
Sign Up Now
<script>
function confirmSignup(){
if(confirm("Are you sure?"))
{
window.location.href="http://somelocation.com/sign-up";
}
}
</script>
Like #Pety Howell said, you can use the onClick function to unhide the text. Here's a pretty straightforward way to do it with jQuery.
$(function() {
$('.link').on('click', function() {
$('.span').addClass('open');
});
});
.span {
display: none;
}
.open {
display: block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Click me
<span class="span">I'm hidden!</span>
Working fiddle: https://jsfiddle.net/3gr03yzn/4/
You could use jQuery toggle() function.
HTML :
<button id="member">
Are you Member ?
</button>
<div class="answer">
Yes<br />
No
</div>
JS :
$("#member").click(function() {
$(".answer").toggle();
});
CSS :
.answer {
display:none;
}
The working example on jsFiddle.
Hope this helps
Try this code.
please vote if this code helpful to you
function execute(){
var x = document.getElementById('link_list');
var y =document.getElementById('btn');
if(x.style.visibility==="hidden"){
y.style.visibility="hidden";
x.style.visibility="visible";
}
}
<button onclick="execute()" id="btn">sign up</button>
<div id="link_list" style="visibility:hidden">
Are you a member, <button onclick="window.open('http://sparrolite.blogspot.in')">Yes</button> or <button onclick="window.open('google.com')">no</button>
</div>
Most answers mentioned here either uses
jQuery or,
onclick attribute which is obtrusive javascript.
Here's how to achieve the desired behavior using vanilla, unobtrusive JavaScript.
window.onload = function() {
var button = document.querySelector('.ticket-button');
var info = document.querySelector('.info');
info.style.display = 'none';
var dispalyInfo = false;
button.onclick = function(e) {
e.preventDefault(); /* prevent page from navigating to a new page onclick */
if (dispalyInfo) {
info.style.display = 'none';
dispalyInfo = false;
} else {
info.style.display = 'initial';
dispalyInfo = true;
}
}
}
.ticket-button {
display: block;
}
Sign Up Now
<span class="info">Are you a member, yes or no?</span>
References:
Document.querySelector()
HTMLElement.style