What is this bar called?

[DownPW]

seems to be good my friend

[phenomlab]

@DownPW not sure if you’ve noticed, but (at least for me) the scroll to top function no longer works?

EDIT - there is a bug in the above code. Please use this updated version

// Scroll to top function
$(window).on('action:ajaxify.end', function(data) {
    var matched = false;
    $(document).ready(function() {
        var pageUp = $('#pageUp');
        var bar = $('.reading-meter');
        var perWidth = $('.reading-meter').width();
        
        // Main progressbar function
        function pageScroller() {
            var winScroll = document.body.scrollTop || document.documentElement.scrollTop;
            var height = document.documentElement.scrollHeight - document.documentElement.clientHeight;
            var scrolled = (winScroll / height) * 100;

            document.getElementById("progress-bar").style.width = parseFloat(scrolled).toFixed(0) + "%";
            $('#percentage').val(parseFloat(scrolled).toFixed(0) + "%");

            // Prevent the mouse scroll wheel from scrolling down after the pageUp button is clicked
            if ($('#pageUp').is(':focus')) {
                event.preventDefault();
            }
        }

        // Bind the pageScroller function to the window's scroll event
        $(window).scroll(function() {
            pageScroller();
        });

        // Check the URL and composer visibility separately from the scroll event
        function checkURL() {
            var thisURL = window.location.href;
            var checkArray = ["topic", "notifications", "user"];
            var isFound = false;
            
            for (var i = 0, len = checkArray.length; i < len; i++) {
                if (thisURL.indexOf(checkArray[i]) > -1) {
                    isFound = true;
                    break;
                }
            }
            
            return isFound;
        }

        // Function to update visibility based on URL and composer
        function updateVisibility() {
            if (checkURL()) {
                bar.removeClass('show');
                pageUp.removeClass('show');
            } else {
                // Exception here is that we don't want the scroll bar to show when the composer is active
                if ($(window).scrollTop() > 0 && (!$('[component="composer"]').is(":visible"))) {
                    bar.addClass('show');
                    pageUp.addClass('show');
                } else {
                    bar.removeClass('show');
                    pageUp.removeClass('show');
                }
            }
        }

        // Call updateVisibility initially
        updateVisibility();

        // Bind updateVisibility function to the window's scroll event
        $(window).scroll(function() {
            updateVisibility();
        });


        // Scroll to top when #pageUp is clicked
        $(document).on("click", "#pageUp", function(e) {
            const firstTopic = $('[component="category/topic"][data-index="0"]');
            if (firstTopic.length) {
                $("html").animate({
                    scrollTop: 0
                }, '300');
                return false;
            } else {
                ajaxify.refresh();
            }
            $('#progress-bar').width(0);
            pageUp.removeClass('show');
        });
    });
});

[DownPW]

It’s funny I just realized it and I was going to share it here and I see your message!!
Thanks you Mark @phenomlab

On the other hand, I have never been careful but I have the impression that the page is reloaded when you click on the button.
I don’t know if it’s me but before, (on v2 perhaps?) we saw the page scroll from bottom to top after pressing the button

I find this strange. I’ve never seen this on other sites using the same type of scroll to top

[phenomlab]

@DownPW you are right - it used to scroll to the top but I changed it because “scroll top” actually only applied to what was in the DOM at the time meaning that as data was being added, the “top” position was no longer a true representation and so the button had to be clicked multiple times to reach the “real” top.

[DownPW]

Ok, thanks to confirm
so I have no possibility of modifying it to display the same effect as on v2?

[phenomlab]

@DownPW it can easily be reverted, but I don’t want to maintain two sets of code. I’ll defer to others here for that final decision as I know it did cause some confusion.

[DownPW]

no problem dude @phenomlab
I put a modification here that seems to work as a reminder if you don’t mind.

–> If yes, you can delete it.

use $('html, body').animate({ scrollTop: 0 }, '300'); to smoothly scroll the page to the top when the #pageUp button is clicked. This code will provide a smooth scrolling effect from the bottom to the top of the page without reloading it.

What do you think of this?

// Scroll to top function
$(window).on('action:ajaxify.end', function(data) {
    var matched = false;
    $(document).ready(function() {
        var pageUp = $('#pageUp');
        var bar = $('.reading-meter');
        var perWidth = $('.reading-meter').width();
        
        // Main progressbar function
        function pageScroller() {
            var winScroll = document.body.scrollTop || document.documentElement.scrollTop;
            var height = document.documentElement.scrollHeight - document.documentElement.clientHeight;
            var scrolled = (winScroll / height) * 100;

            document.getElementById("progress-bar").style.width = parseFloat(scrolled).toFixed(0) + "%";
            $('#percentage').val(parseFloat(scrolled).toFixed(0) + "%");

            // Prevent the mouse scroll wheel from scrolling down after the pageUp button is clicked
            if ($('#pageUp').is(':focus')) {
                event.preventDefault();
            }
        }

        // Bind the pageScroller function to the window's scroll event
        $(window).scroll(function() {
            pageScroller();
        });

        // Check the URL and composer visibility separately from the scroll event
        function checkURL() {
            var thisURL = window.location.href;
            var checkArray = ["topic", "notifications", "user"];
            var isFound = false;
            
            for (var i = 0, len = checkArray.length; i < len; i++) {
                if (thisURL.indexOf(checkArray[i]) > -1) {
                    isFound = true;
                    break;
                }
            }
            
            return isFound;
        }

        // Function to update visibility based on URL and composer
        function updateVisibility() {
            if (checkURL()) {
                bar.removeClass('show');
                pageUp.removeClass('show');
            } else {
                // Exception here is that we don't want the scroll bar to show when the composer is active
                if ($(window).scrollTop() > 0 && (!$('[component="composer"]').is(":visible"))) {
                    bar.addClass('show');
                    pageUp.addClass('show');
                } else {
                    bar.removeClass('show');
                    pageUp.removeClass('show');
                }
            }
        }

        // Call updateVisibility initially
        updateVisibility();

        // Bind updateVisibility function to the window's scroll event
        $(window).scroll(function() {
            updateVisibility();
        });

        // Scroll to top when #pageUp is clicked
        $(document).on("click", "#pageUp", function(e) {
            $('html, body').animate({ scrollTop: 0 }, '300'); // Animate scrolling to top
            $('#progress-bar').width(0);
            pageUp.removeClass('show');
        });
    });
});

[phenomlab]

@DownPW looks good to me.

[phenomlab]

@DownPW Just to circle back to this, the decision to reload the page instead of multiple scrolling / clicking was based on this discussion, which I’m including here for brevity

https://community.nodebb.org/topic/17395/scroll-top-function?_=1695115491466

[DownPW]

@phenomlab said in What is this bar called?:

@DownPW you are right - it used to scroll to the top but I changed it because “scroll top” actually only applied to what was in the DOM at the time meaning that as data was being added, the “top” position was no longer a true representation and so the button had to be clicked multiple times to reach the “real” top.

you are right @phenomlab the code I gave yesterday works but does the same thing as you described.

here a mix of the 2 (scroll to top & scroll to top with refresh)

// Scroll to top function (classic scroll to top)
$(window).on('action:ajaxify.end', function(data) {
    var matched = false;
    $(document).ready(function() {
        var pageUp = $('#pageUp');
        var bar = $('.reading-meter');
        var perWidth = $('.reading-meter').width();
        
        // Main progressbar function
        function pageScroller() {
            var winScroll = document.body.scrollTop || document.documentElement.scrollTop;
            var height = document.documentElement.scrollHeight - document.documentElement.clientHeight;
            var scrolled = (winScroll / height) * 100;

            document.getElementById("progress-bar").style.width = parseFloat(scrolled).toFixed(0) + "%";
            $('#percentage').val(parseFloat(scrolled).toFixed(0) + "%");

            // Prevent the mouse scroll wheel from scrolling down after the pageUp button is clicked
            if ($('#pageUp').is(':focus')) {
                event.preventDefault();
            }
        }

        // Bind the pageScroller function to the window's scroll event
        $(window).scroll(function() {
            pageScroller();
        });

        // Check the URL and composer visibility separately from the scroll event
        function checkURL() {
            var thisURL = window.location.href;
            var checkArray = ["topic", "notifications", "user"];
            var isFound = false;
            
            for (var i = 0, len = checkArray.length; i < len; i++) {
                if (thisURL.indexOf(checkArray[i]) > -1) {
                    isFound = true;
                    break;
                }
            }
            
            return isFound;
        }

        // Function to update visibility based on URL and composer
        function updateVisibility() {
            if (checkURL()) {
                bar.removeClass('show');
                pageUp.removeClass('show');
            } else {
                // Exception here is that we don't want the scroll bar to show when the composer is active
                if ($(window).scrollTop() > 0 && (!$('[component="composer"]').is(":visible"))) {
                    bar.addClass('show');
                    pageUp.addClass('show');
                } else {
                    bar.removeClass('show');
                    pageUp.removeClass('show');
                }
            }
        }

        // Call updateVisibility initially
        updateVisibility();

        // Bind updateVisibility function to the window's scroll event
        $(window).scroll(function() {
            updateVisibility();
        });

        // Scroll to top when #pageUp is clicked
        $(document).on("click", "#pageUp", function(e) {
            $('html, body').animate({ scrollTop: 0 }, '300'); // Animate scrolling to top
            $('#progress-bar').width(0);
            pageUp.removeClass('show');
        });
    });
});

// Scroll to refresh function (for specific URLs)
$(window).on('action:ajaxify.end', function(data) {
    var refreshRoutes = ['/recent', '/unread', '/popular', '/top', '/solved', '/unsolved'];
    var currentRoute = ajaxify.data.url;

    if (refreshRoutes.includes(currentRoute)) {
        var pageUp = $('#pageUp');
        var bar = $('.reading-meter');
        var perWidth = $('.reading-meter').width();

        // Main progressbar function
        function pageScroller() {
            var winScroll = document.body.scrollTop || document.documentElement.scrollTop;
            var height = document.documentElement.scrollHeight - document.documentElement.clientHeight;
            var scrolled = (winScroll / height) * 100;

            document.getElementById("progress-bar").style.width = parseFloat(scrolled).toFixed(0) + "%";
            $('#percentage').val(parseFloat(scrolled).toFixed(0) + "%");

            // Prevent the mouse scroll wheel from scrolling down after the pageUp button is clicked
            if ($('#pageUp').is(':focus')) {
                event.preventDefault();
            }
        }

        // Bind the pageScroller function to the window's scroll event
        $(window).scroll(function() {
            pageScroller();
        });

        // Function to update visibility based on URL and composer
        function updateVisibility() {
            // No need to check composer visibility for these routes
            if ($(window).scrollTop() > 0) {
                bar.addClass('show');
                pageUp.addClass('show');
            } else {
                bar.removeClass('show');
                pageUp.removeClass('show');
            }
        }

        // Call updateVisibility initially
        updateVisibility();

        // Bind updateVisibility function to the window's scroll event
        $(window).scroll(function() {
            updateVisibility();
        });

        // Scroll to refresh when #pageUp is clicked
        $(document).on("click", "#pageUp", function(e) {
            ajaxify.refresh();
            $('#progress-bar').width(0);
            pageUp.removeClass('show');
        });
    }
});

I found it interesting to keep the scroll effect on the home page

The scroll to top with refresh is applied on the routes indicated in the script (/recent, /unread, etc.). The classic scroll to top applies to other pages and the scroll to top is disabled in chat, etc…

For the previous script, I used the code from your v2 and doing myself but I’m not being a good JS developer, so this time I asked to ChatGPT to help me, sorry !

I tested the code and it seems to work correctly without any bugs but could you check @phenomlab if this seems correct to you even if the code works?

A machine will not replace humans in this regard. At least for now

[phenomlab]

@DownPW Love it - let me try this out!

EDIT - Tried it, and there’s a couple of bugs. For example, if you use a custom page, scroll to the bottom, then use the back to top button, you have to scroll the mouse wheel down 16 times (if you do it quickly - depending on intervals it can be much less) before it’ll work properly. This is animation jitter as far as I can see where the animation does not complete on time and is therefore stuck in a loop.

Have a look yourself here and see if you get the same experience

https://sudonix.org/journey

[phenomlab]

Seems you can fix this by using e.preventDefault() see below

    // Scroll to top when #pageUp is clicked
    $(document).on("click", "#pageUp", function(e) {
        e.preventDefault(); // Prevent default behavior
        $('html, body').animate({ scrollTop: 0 }, '300'); // Animate scrolling to top
        $('#progress-bar').width(0);
        pageUp.removeClass('show');
    });

[DownPW]

Not test on custom page. Test ASAP

[phenomlab]

@DownPW said in What is this bar called?:

Not test on custom page. Test ASAP

The above code change I provided seems to resolve the issue.

[DownPW]

This is good