I have page reload alerts working, however they even happen when a button press is done as this triggers a page reload. How would I prevent a page reload and fire an alert when the page is refreshed, unless its a button press (Input type is Submit)
var dont_confirm_leave = 0; //set dont_confirm_leave to 1 when you want the user to be able to leave withou confirmation
var leaveMsg = "Dude, are you sure you want to leave? Think of the kittens!";
window.onbeforeunload = function() {
if (window.location.href.indexOf("id=website") > -1 || window.location.href.indexOf("id=partner") > -1) {
dont_confirm_leave = 1;
}
if (document.getElementsByClassName('NextBtn').onclick) {
dont_confirm_leave = 1;
}
if (document.getElementsByClassName('BackBtn').onclick) {
dont_confirm_leave = 1;
}
if (dont_confirm_leave !== 1) {
if (!e) e = window.event;
//e.cancelBubble is supported by IE - this will kill the bubbling process.
e.cancelBubble = true;
e.returnValue = leaveMsg;
//e.stopPropagation works in Firefox.
if (e.stopPropagation) {
e.stopPropagation();
e.preventDefault();
}
//return works for Chrome and Safari
return leaveMsg;
}
}
Related
Want to Disable Long press on all images in the webpage.
Could anyone recommend me a simple way to do it.Also I'm a newbie to Java Script.
I've tried "pointer-events:none" in CSS.But it disabled clicking too.
I've used the images as a Hyperlink so clicking can't be avoided.
function absorbEvent_(event) {
var e = event || window.event;
e.preventDefault && e.preventDefault();
e.stopPropagation && e.stopPropagation();
e.cancelBubble = true;
e.returnValue = false;
return false;
}
function preventLongPressMenu(node) {
node.ontouchstart = absorbEvent_;
node.ontouchmove = absorbEvent_;
node.ontouchend = absorbEvent_;
node.ontouchcancel = absorbEvent_;
}
function init() {
preventLongPressMenu(document.getElementById('theimage'));
}
Source: https://newbedev.com/disabling-the-context-menu-on-long-taps-on-android
Here is the code that works as-is, a classic onBeforeUnLoad event, in the <script type="text/jscript"> tag of my ASP page :
window.onbeforeunload = function (e) {
a = 1;
e = e || window.event;
e.preventDefault = true;
e.cancelBubble = true;
e.returnValue = "do you wish to save?";
}
Now, two issues i'm experiencing when wanting to do something more complex :
I want this to appear only once at all cost :
var a = 0;
window.onbeforeunload = function (e) {
if (a == 0) {
a = 1;
e = e || window.event;
e.preventDefault = true;
e.cancelBubble = true;
e.returnValue = "Wish to save?";
}
}
//Does not work...
I want it to be able to run this other function that works when not combined with the first :
comfirmExit = function(){
if (confirm("Wish to save?") == true) {
document.getElementById('<%= btnEnregistrer.ClientID %>').click();
}
}
// works, but not when combine to the first function
I tried to put this all together... I want the unload event to make my confirm box function run :
window.onbeforeunload = function (e) {
if (a == 0) {
a = 1;
comfirmExit = function(){
if (confirm("Wish to save?") == true) {
document.getElementById('<%= btnEnregistrer.ClientID %>').click();
}
}
}
And now I realize I'm far from being an expert of javascript...
The beforeunload event won't run any obtrusive Javascript for the user (ie alert, confirm etc).
But there is an workaround, the steps should be something like:
Create a boolean flag to check if the user has canceled the exiting of your page (default false).
Create the beforeunload event handler, and check if the game is not
saved.
If it was already saved, then, you do nothing, and let the user go
But if it was not, then you change that boolean flag to true.
You keep an interval dirty-checking if that variable is true, and at anytime it is, you save the game for the user, and then set this variable to false again.
So, doing that, you'll ensure the user always see a message if they're leaving without saving, and if they cancel the exiting, the game will be automatically saved, making the next try pretty smooth.
Take a look at the example below. To test it, open your console, click on Run. Then, try to click on Run again, and you'll see an exiting message. If you confirm it, your console won't show anything. But if you cancel it, then, you'll be kept in the page, then you try to click Run again, and you'll see that no message will appear, but the console will log true.
(function() {
var game = { saved: false };
var canceled = false;
setInterval(function() {
if (canceled) {
game.saved = true;
canceled = false;
}
}, 100);
window.onbeforeunload = function() {
if (!game.saved) {
canceled = true;
return 'Are you sure?';
}
else {
console.log(game.saved);
}
}
})();
I am working on a project in which i need to do some custom development. and one of them is i have to display an popup when user closed the PARTICULAR TAB. I already try some solutions but it is not working as i want. either it is working on whole browser or not at all working. So how do I achieve prompt when user close any particular tab.
Solution i had try that is
Solution i tried
var validNavigation = false;
function wireUpEvents() {
/**
* For a list of events that triggers onbeforeunload on IE
* check http://msdn.microsoft.com/en-us/library/ms536907(VS.85).aspx
*
* onbeforeunload for IE and chrome
* check http://stackoverflow.com/questions/1802930/setting-onbeforeunload-on-body-element-in-chrome-and-ie-using-jquery
*/
var dont_confirm_leave = 0; //set dont_confirm_leave to 1 when you want the user to be able to leave withou confirmation
var leave_message = 'You sure you want to leave?'
function goodbye(e) {
if (!validNavigation) {
if (dont_confirm_leave!==1) {
if(!e) e = window.event;
//e.cancelBubble is supported by IE - this will kill the bubbling process.
e.cancelBubble = true;
e.returnValue = leave_message;
//e.stopPropagation works in Firefox.
if (e.stopPropagation) {
e.stopPropagation();
e.preventDefault();
}
//return works for Chrome and Safari
return leave_message;
}
}
}
window.onbeforeunload=goodbye;
// Attach the event keypress to exclude the F5 refresh
$(document).bind('keypress', function(e) {
if (e.keyCode == 116){
validNavigation = true;
}
});
// Attach the event click for all links in the page
$("a").bind("click", function() {
validNavigation = true;
});
// Attach the event submit for all forms in the page
$("form").bind("submit", function() {
validNavigation = true;
});
// Attach the event click for all inputs in the page
$("input[type=submit]").bind("click", function() {
validNavigation = true;
});
}
// Wire up the events as soon as the DOM tree is ready
$(document).ready(function() {
wireUpEvents();
});
I am working on a Javascript that is suppose to do a click feature on an element as well as showing a pop-up asking if you want to really leave the site (close the tab). Now The code works fine on IE and Firefox. But Chrome while it does do the important thing in terms of doing the click(); It will not show a pop-up asking if I want to leave or not. I Don't know if its a feature I need to enable in the Chrome browser or something else. Here is the code I am using. Any help would be much appreciated.
var validNavigation = false;
function wireUpEvents() {
var dont_confirm_leave = 0;
var leave_message = document.getElementById("kioskform:broswerCloseSubmit");
function goodbye(e) {
if (!validNavigation) {
if (dont_confirm_leave!==1) {
if(!e) e = window.event;
//for IE
e.cancelBubble = true;
e.returnValue = leave_message.click();
//e.stopPropagation works in Firefox.
if (e.stopPropagation) {
e.stopPropagation();
e.preventDefault();
}
//return works for Chrome and Safari
return leave_message.click();
alert("Removing information.");
//add the code to delete the kiosk information here.
// this is what is to be done.
}
}
}
window.onbeforeunload=goodbye;
// Attach the event keypress to exclude the F5 refresh
jQuery('document').bind('keypress', function(e) {
if (e.keyCode == 116){
validNavigation = true;
}
});
// Attach the event click for all links in the page
jQuery("a").bind("click", function() {
validNavigation = true;
});
// Attach the event submit for all forms in the page
jQuery("form").bind("submit", function() {
validNavigation = true;
});
// Attach the event click for all inputs in the page
jQuery("input[type=submit]").bind("click", function() {
validNavigation = true;
});
}
// Wire up the events as soon as the DOM tree is ready
jQuery(document).ready(function() {
wireUpEvents();
});
You have to return a string in the onbeforeunload function to show the message to the user, see also Setting onbeforeunload on body element in Chrome and IE using jQuery
I have a system where I want to check with the user if they're sure they want to leave the page once a dirty flag is set.
I'm using the following code - In FireFox, I can look at the page source through FireBug and the tag correctly has the onbeforeunload attribute inserted in it.
In Chrome and FireFox, this doesn't happen though and I'm able to navigate away from the page without any warning at all. The jQuery line to update the body tag is definitely being executed, it just isn't performing it.
if ($("body").attr('onbeforeunload') == null) {
if (window.event) {
// IE and Chrome use this
$("body").attr('onbeforeunload', 'CatchLeavePage(event)');
}
else {
// Firefox uses this
$("body").attr('onbeforeunload', 'return false;CatchLeavePage(event)');
}
}
Any ideas how to proceed from here?
you cannot abort page unload by returning false. you must return string that will be shown to user in a message box, and he decides if he want to leave or stay on the page (by selecting either 'OK' or 'Cancel' button), so you need to write your code like this:
window.onbeforeunload = function() {
return "Are you sure you want to leave this page bla bla bla?"; // you can make this dynamic, ofcourse...
};
try this
<script type=\"text/javascript\">
var dont_confirm_leave = 0; //set dont_confirm_leave to 1 when you want the user to be able to leave withou confirmation
var leave_message = 'You sure you want to leave?'
function goodbye(e)
{
if(dont_confirm_leave!==1)
{
if(!e) e = window.event;
//e.cancelBubble is supported by IE - this will kill the bubbling process.
e.cancelBubble = true;
e.returnValue = leave_message;
//e.stopPropagation works in Firefox.
if (e.stopPropagation)
{
e.stopPropagation();
e.preventDefault();
}
//return works for Chrome and Safari
return leave_message;
}
}
window.onbeforeunload=goodbye;
</script>
window.onbeforeunload = function () { return 'Are you sure?' };
Check this code :
var validNavigation = false;
function wireUpEvents() {
var dont_confirm_leave = 0;
var leave_message = "You sure you want to leave ?";
function goodbye(e) {
if (!validNavigation) {
if (dont_confirm_leave !== 1) {
if (!e) e = window.event;
e.cancelBubble = true;
e.returnValue = leave_message;
//e.stopPropagation works in Firefox.
if (e.stopPropagation) {
e.stopPropagation();
e.preventDefault();
}
//return works for Chrome and Safari
return leave_message;
}
}
}
window.onbeforeunload = goodbye;
document.onkeydown = function () {
switch (event.keyCode || e.which) {
case 116 : //F5 button
validNavigation = true;
case 114 : //F5 button
validNavigation = true;
case 82 : //R button
if (event.ctrlKey) {
validNavigation = true;
}
case 13 : //Press enter
validNavigation = true;
}
}
// Attach the event click for all links in the page
$("a").bind("click", function () {
validNavigation = true;
});
// Attach the event submit for all forms in the page
$("form").bind("submit", function () {
validNavigation = true;
});
// Attach the event click for all inputs in the page
$("input[type=submit]").bind("click", function () {
validNavigation = true;
});
}
// Wire up the events as soon as the DOM tree is ready
$(document).ready(function () {
wireUpEvents();
});
It's not pretty, but it did the trick.
var warnclose = true;
var warn = function(e) {
var warning = 'Your warning message.';
if (warnclose) {
// Disables multiple calls
warnclose = false;
// In case we still need warn to be called again
setTimeout(function(){
warnclose = true;
}, 500);
return warning;
}
};
window.onbeforeunload = warn;