My DIV #sequence is to be full height of the browser window for window sizes greater than 920px in height. When its greater than 920px in height I want to fire a plugin, for window sizes lower than 920px I want the #sequence div to be the height set in my CSS file as a fallback. This works when the page is loaded, however I cannot get the resize event to fire, its unresponsive and I see no errors in console.
This is my code mostly taken from this post Do something if screen width is less than 960 px:
var eventFired = 0;
if ($(window).height() < 920) {
} else {
fitSequence();
eventFired = 1;
}
$(window).on('resize', function() {
if (!eventFired == 1) {
if ($(window).height() < 920) {
} else {
$(window).resize(function(){ fitSequence(); });
}
}
});
Just as an FYI here's the fitSequence plugin I'm referencing:
function fitSequence(){
var height=$(window).height();
$('#sequence').css('height',height-100+"px");
};
If condition is not correct:
if (!eventFired == 1) {
It should be:
if (eventFired != 1) {
And in the function part this is ambiguous part of code:
$('#sequence').css('height',height-100+"px");
It should be:
$('#sequence').css('height',(height-100)+"px");
^^ add brackets
Related
I have roughly around 50 video thumbnails on a set page.
I would like to resize them depending on the resolution.
What I have tried was using #media query in css that did not work as expected then I moved over to this.
$(document).ready(function(event) {
var width = $(window).width();
// Change thumbnail size if browser width changes (should be in real-time)
if (width <= 1300) {
console.log(width);
$('.mdl-cell').removeClass('mdl-cell--3-col').addClass('mdl-cell--4-col');
} else {
$('.mdl-cell').removeClass('mdl-cell--4-col').addClass('mdl-cell--3-col');
}
});
After inserting that script the video thumbnail size changes but as I adjust the browser the jQuery does not load and resize the thumbnail unless the page is refreshed ?
Im not sure as to why the jQuery is not loading the script in real time as the size (browser) changes.
Languages that I am using in this project : PHP, jQuery
you need to catch window resize event with jQuery and also write your code there.
$(window).resize(function() {
var width = $(window).width();
// Change thumbnail size if browser width changes (should be in real-time)
if (width <= 1300) {
console.log(width);
$('.mdl-cell').removeClass('mdl-cell--3-col').addClass('mdl-cell--4-col');
} else {
$('.mdl-cell').removeClass('mdl-cell--4-col').addClass('mdl-cell--3-col');
}
});
To reduce code repetition you can make a function and call it in both $(window).resize() and $(document).ready()
function onResize() {
var width = $(window).width();
if (width <= 1300) {
$('.mdl-cell').removeClass('mdl-cell--3-col').addClass('mdl-cell--4-col');
} else {
$('.mdl-cell').removeClass('mdl-cell--4-col').addClass('mdl-cell--3-col');
}
}
$(document).ready(onResize);
$(window).resize(onResize);
This should work, but it would be much better if it were done with css. Would love you help you with that if you want to post what you tried. If you do it with css, you will not have the jumping on the page that'll occur when the js loads and changes those classes in and out.
You can do smth like this.
Note: this is untested code
function updateSizes(){
var width = $(window).width();
if (width <= 1300) {
$('.mdl-cell').removeClass('mdl-cell--3-col').addClass('mdl-cell--4-col');
} else {
$('.mdl-cell').removeClass('mdl-cell--4-col').addClass('mdl-cell--3-col');
}
}
$(document).ready(function(event) {
updateSizes();
// do other stuff here
});
$( window ).resize(function() {
updateSizes();
// do other stuff here
});
I want my navbar to be transparant on the top and bottom of my page but i want it to not be transparant in the middle. When i have my webpage on full screen this works:
$(window).on("scroll", function () {
if ($(window).scrollTop() > 720 && $(window).scrollTop() < 1450 ) {
$(".nav").addClass("active");
} else {
$(".nav").removeClass("active");
}
})
But when it gets resized this wont work anymore because the sizes change. Is there a way to do this with % instead of just normal numbers so it will be responsive?
It occur because you hardcoded your height values. Check the whole site height, divide it on three and incorporate this variables to your if statement. Every time you resize browser window it will recalculate your new position.
window.addEventListener('resize', function() {
//one third and two third of website
oneThird = window.scrollHeight / 3;
twoThird = onethird * 2;
if ( $(window).scrollTop() > oneThird && $(window).scrollTop() < twoThird ) {
$(".nav").addClass("active");
} else {
$(".nav").removeClass("active");
}
}
You can use Media Queries with JS too, so you can do certain things on your desired window size, this might help https://www.w3schools.com/howto/howto_js_media_queries.asp
I have a page if you click you are gonna see demo page and there is a fixed menu which is hidden.
after scroll page to down you'll see fixed menu set as display:block as you see on image:
but after appear if I'm resizing to window and if I turn normal desktop mode after scroll page to up as you see my fixed menu is not hiding
and another problem is if you open page mobile emulator (like on this emulator)[http://mobiletest.me/google_nexus_7_emulator/?u=http://firatabak.com/test/tur_detay.html] normally menu has to be show when I scroll page to down but it's not.
JS CODE
var navOffset = jQuery(".after-scroll-sticky").offset().top;
jQuery(window).scroll(function(){
var scrollPosition = jQuery(window).scrollTop();
if(scrollPosition >= navOffset){
jQuery(".sticky-navbar").fadeIn().addClass("fixed");
}else{
jQuery(".sticky-navbar").fadeOut().removeClass("fixed");
}
});
if ($(window).width() < 768) {
var navOffset2 = jQuery(".after-scroll-sticky").offset().top+200;
jQuery(window).scroll(function(){
var sP = jQuery(window).scrollTop();
if(sP >= navOffset2){
$(".sticky-navbar").addClass("fadeOutRightBig");
$(".menu-btn").fadeIn("fast");
}else{
$(".sticky-navbar").removeClass("fadeOutRightBig");
$(".menu-btn").fadeOut("slow");
}
});
}
Since you're defining the second jQuery.scroll function within an if statement, it only becomes active if the window width is less than 768px at the moment the script runs - it doesn't kick in when the window is resized. Instead you could try this format:
jQuery(window).scroll(function(){
if ($(window).width() < 768) {
// calculations and animation go here
}
});
Or better yet, combine the two jQuery.scroll functions together:
jQuery(window).scroll(function(){
var navOffset = jQuery(".after-scroll-sticky").offset().top,
scrollPosition = jQuery(window).scrollTop();
if ($(window).width() < 768) {
if (scrollPosition >= navOffset + 200) {
// ...
} else {
// ...
}
else if (scrollPosition >= navOffset) {
// ...
} else {
// ...
}
});
Then just make sure that you're undoing the changes made in other cases before applying the new changes.
basically, what I want to do is trigger an event if the user increases the size of the browser from X to Y. Provided X = Anything less than 750 pixels, and Y is anything more than 750 pixels.
Right now, I am doing something like this:
$(window).resize(function(){
if ($(window).width() >= 750) {
console.log('750 or more');
}
});
This works, however, its clearly not efficient. For example, if I resize my window from 780px to max width (1024px), even then the event gets triggered. Or even if I decrease the size from 800px to 780px, I still obviously get the console output.
How do I get this to work right?
You will need to setTimeout to allow check to take place .
Example :
var resizeTimer;
$(window).resize(function() {
clearTimeout(resizeTimer);
resizeTimer = setTimeout(function() {
var body_size = $(window).width();
// ...
// do your screen check here
// ...
}, 1);
})
Hope this helps
There's no true solution for this issue since removing the on resize event after max width has been reached results in the on resize function no longer being called even when the width is below 1024px.
Maybe in the future it's possible to have an on resize event under certain conditions only.
You can also use the on resize end event to only trigger the function after resizing the window, keep in mind this might result in visual changes happening after a user has resized a window instead of during the resizing of a window.
There are multiple methods to make the on resize event perform better: http://bencentra.com/code/2015/02/27/optimizing-window-resize.html
Here is a throttled version using script that might be a good start
Fiddle demo
(function(timeout,bigger) { // local static var - timeout,bigger
window.addEventListener("resize", function(e) {
if ( !timeout ) {
timeout = setTimeout(function() {
timeout = null;
actualResizeHandler(e);
// Set the actual fire rate
}, 66);
}
}, false);
function actualResizeHandler(e) {
// handle the resize event
if (window.innerWidth >= 750 && !bigger) {
//passed above (or equal) 750
document.querySelector('span').style.color = 'blue';
document.body.innerHTML += '<br>above 750';
} else if (window.innerWidth < 750 && bigger) {
//passed below 750
document.querySelector('span').style.color = 'red';
document.body.innerHTML += '<br>below 750';
}
bigger = (window.innerWidth >= 750);
}
// run once at load
bigger = (window.innerWidth < 750);
actualResizeHandler();
}(null,false));
<span>This text is blue on big and red on small</span>
and here is one use CSS media query
span {
color: red;
}
#media screen and (min-width: 750px) {
span {
color: blue
}
}
<span>This text is blue on big and red on small</span>
I need a mobile navigation to stick after the user has scrolled a certain amount. When a user has scrolled 205px on desktop resolution the navigation will stick no problem.
How do I change this to 64px after the screen size has gone below 767px? and how do I cancel the desktop jQuery from taking effect on a mobile?
Current desktop javascript:
$(window).scroll(function(){
if ($(this).scrollTop() > 205) {
$('.sidemenu').addClass('fixed');
} else {
$('.sidemenu').removeClass('fixed');
}
});
Current mobile javascript:
function checkPosition() {
if (window.matchMedia('(max-width: 767px)').matches) {
$(window).scroll(function(){
if ($(this).scrollTop() > 64) {
$('.sidemenu').addClass('fixed');
} else {
$('.sidemenu').removeClass('fixed');
}
})
}
};
Suggestions would be much appreciated.
Thank you.
You can add a class mobile to your body for example when the matchmedia matches.
$(document.body).toggleClass('mobile', window.matchMedia('(max-width: 767px)').matches);
Once you have that, the checkPosition simply has to get the proper scrollTop value.
function checkPosition() {
var scrollY = $(document.body).hasClass('mobile') ? 64 : 205;
$('.sidemenu').toggleClass('fixed', $(window).scrollTop() > scrollY);
};
Or simply add the matchMedia test instead of the hasClass test.
Additionally, I expect the height of the "fixed container" to be dynamic.
Maybe something like:
var scrollY = $('header').height(); // just an idea ofcourse to get 64 or 205.
You can check screens size in resize wvent like this
var width;
$(window).resize(function () {
width = $("html").width();
});
than in scroll event (or in other place) you can check:
if (width <= 767) {
// do some for small screen
}
else if (width > 767 && width < 1200) {
// do some for medium screen
}
//if..