This problem can be exhibited in all (that I know of) Twitter Bootstrap versions. So, I have a navbar and when the screen is smaller, it becomes a collapsable tray. This behaviour can be seen on the bootstrap demo site. I also have submenus, which appear collapsed on the initial navbar expansion. The problem is, on the first collapse, the collapsable gets an explicit height set. If you close and expand again, the collapsable gets a height:auto;
So, when I click a submenu item, the dropdown is expanded, but it overflows due to the height being explicitly set.
My attempted solution was adding:
$(function() {
$('.nav-collapse').on({
shown: function() {
$(this).css('height', 'auto');
},
hidden: function() {
$(this).css('height', '0px');
}
});
});
This doesn't seem to affect it at all, I've deleted that code and it still has the same effect. If a JS Fiddle would help, I'd be happy to provide one, but you can see all of this on the Bootstrap demo site.
Thanks in advance,
Charles.
It bothered me a little, and after some searching, I found that the problem can be solved by adding the .collapse class to the .nav-collapse element.
Working demo (jsfiddle)
One of those time when we just say Meh.. I should have followed the doc to the letter (see Responsive navbar):
<div class="nav-collapse collapse">
<!-- .nav, .navbar-search, .navbar-form, etc -->
</div>
For posterity :
Found out thanks to this issue : https://github.com/twitter/bootstrap/issues/3788
I'm not sure if it really is related, but my debugging showed the problem on the first transition height resetting anyway (source) :
$.support.transition && this.$element[dimension](this.$element[0][scroll])
Bootstrap is setting the element style height to 280px on initialization of the collapse element.
I added this JQuery line in my ready() function right after my call to .collapse()
$("#avail_detail").collapse();
$("#avail_detail").css("height","auto");
And, now things behave as I expect.
Related
since overflow: auto and overflow: scroll don't work for android 4 and older versions I tried to use Iscroll.js. I use it for 2 normal div and it works fine. but bootstrap modal has a problem with it. it only gets scrolled after a window resize.
I tried many things to solve it:
give the scroll to different div inside model.
change positions: fixed to absolute and relative.
give modal divs height and max-height.
none of the them solve this problem.
so please help.
I solved it. the code can explain the problem.
'
$(".product-it").click(function(){
$(this).delay(500).queue(function() {
myScroll.refresh();
$(this).dequeue();
});
});
'
I was wondering, for all you javascript and jquery guru's what would be my best way to tackle this problem. What I have is a navigation that is hidden via CSS to the bottom of the screen. I've managed to have it working as a toggle fine - which you can see here http://jsfiddle.net/olichalmers/Lby7vfdf/.
var body = $("body"); $("#menuBtn").click(function() {
body.toggleClass("showMenu");});
This obviously means that the menu slides up and down.
What my problem is is that I want to animate the menu up on the initial click, and then when you click the button again to close it I want the navigation window to slide up. Then when you click it again to open it, it is appearing from the bottom again. I've been trying to get my head around how this would work and what I think is that it would be two classes (one for hide menu, and one for show menu) which would be added and removed from the body. I have a jsfiddle here http://jsfiddle.net/olichalmers/twqd2yj0/
var body = $("body"); $("#menuBtn").click(function() {
if (body.hasClass("hideMenu")) {
body.removeClass("hideMenu").addClass("showMenu");
}
else if (body.hasClass("showMenu")) {
body.removeClass("showMenu").addClass("hideMenu");
}});
This is probably shocking in it's attempt to come to a solution to this problem. I'm using jquery but maybe it is a javascript solution using an event listener that is needed here? My jquery and javascript knowledge is patchy at best as i'm still in the midst of learning so please go easy if I appear very dumb!
Hope i've been clear enough. Thanks.
May I suggest a different approach?
Create your bottom menu in a separate DIV, located at very top of your HTML (directly under BODY tag). Make that DIV position: fixed -- that takes it out of the "flow" and positions it relative ot the viewport (the screen), not to any other divs or to the web page itself. Now, you can move it up/down based on some trigger.
Here is a code example:
jsFiddle Demo
HTML:
<div id="botttrig"></div>
<div id="bottmenu">The menu is here</div>
<div id="wrap">
<div id="content">
<p>Content goes here</p>
<p>Hover over small box at bottom left</p>
</div>
</div>
jQuery:
$('#botttrig').hover(
function(){
$(this).fadeOut();
$('#bottmenu').animate({
'bottom': '0px'
},500);
},
function(){
//do nothing on hover out
}
);
$('#bottmenu').hover(
function(){
//do nothing on hover in
},
function(){
$('#bottmenu').animate({
'bottom': '-80px'
},500);
$('#botttrig').fadeIn();
}
);
See this jsFiddle for another example. I removed the trigger box, and left the top 10px of the menu visible at screen bottom. Upon hover, slide the menu up. You may wish to increase the z-index on the #bottmenu div to always display it above the other DIVs on the page, so that it is always visible.
http://jsfiddle.net/twqd2yj0/4/
I've used slideToggle() and added display:none; to #navHold
I"m making a script for a portfolio. when you click on one of the portfolio items a div will appear with the jquery onclick function like this:
$('#portfolioItem').click(function() {
$('#divThatWillApear').show();
This all works fine. I also downloaded a slider called glide.js. this slider also work fine.
But as soon as I combine my script and the slider togheter the slider is acting wierd.
I've created a jsfiddle : http://jsfiddle.net/skunheal/fzftX/2/
the slides dont scale to the full width of the slider. but when you rescale the window they do. when I remove the display none from my parent element (portfolioOverlay) it suddenly works all fine...
any one has an idea whats going wrong and how to fix it?
Hope to hear from anyone!
An easy fix would be to initialize the slider after clicking show, to fix this problem.
$('#show').click(function () {
$('#portfolioOverlay').show();
$('.slider').glide();
});
Demo Fiddle
Your .slider width is messing up as the width of the display:none; parent.
I "fixed" it by adding to your .slider
width: 100%;
to
width: 500px; // same as parent element, this means you are joining the width to the width of the parent however
Updated jsFiddle:
http://jsfiddle.net/cB3Pn/
As the portfolioItem is display:none on load it's size/position can not be calculated by your code. Removing the display:none CSS and adding the following to the bottom of your JavaScript will fix this as it will hide the portfolioItem once the JavaScript has run.
$('#portfolioOverlay').hide();
You could trigger the resize event yourself after showing the slider:
$('#show').click(function() {
$('#portfolioOverlay').show();
$(window).resize();
});
I have an issue with scrollspy, recreated in this fiddle:
http://jsfiddle.net/jNXvG/3/
As seen in the demo, the ScrollSpy plugin always keeps the last menu item selected no matter the scrolling position. I've read other questions and answers and tried different combinations of offset, etc., but none of them have helped. I can't figure out what's wrong.
I don't want to edit my template to include ugly html 'data' tags, so I am calling scrollspy() via JavaScript to activate the plugin.
The next step would be to remove the fixed content height and use 'affix' on the sidebar.
I had the exact same problem and for me, adding height: 100% to the body element was the fix.
(stricly nothing else seemed to make it work)
You need to attach the ScrollSpy to the element that is going to trigger scroll events, rather than the menu that is going to reflect the scroll position:
$('#content').scrollspy();
JSFiddle
FYI: To get my desired effect (same one as on the Twitter Bootstrap docs page) I needed to set 'body' as my target element...I could not get scrollspy'ing to work by using the immediate parent of the elements I wanted to spy as the target.
(It just auto-selected the my last element always)
In my case, Firefox was always selecting the last element and it was NOT the
height:100%;
on the body that was causing the problem (as I didn't have anything like that).
It was a
position:absolute;
on a container div.
Hope it helps someone out there...
I fixed it using body height 100% but it didnt work on Firefox. After wasting so much time found the answer on github page. Applying height 100% to HTML tag fixes the issue both for Chrome and Firefox.
https://github.com/twbs/bootstrap/issues/5007
When calling the scrollspy method you typically specify the body tag and the nav element.
<script>
$(function() {
$('body').scrollspy({ target: '#faq_sidebar' });
});
</script>
The JavaScript above is equivalent to:
<body data-spy="scroll" data-target="#faq_sidebar">
The only situation where you do not specify the body tag is if you want to track an element with a nested scrollbar like in the JSFiddle above.
If anyone else's issue wasn't solved by the suggestions above try adding <!DOCTYPE html> to the first line of your page. This was a simple step which solved the problem for me.
I had this same problem; removing the height: 100% from the <body> element fixed this for me.
I had a similar issue where scroll spy would not work on anything but a body tag so I actually went into the bootstrap js found the Scroll spy (SCROLLSPY CLASS DEFINITION) section and changed this line:
, $element = $(element).is('body') ? $(window) : $(element)
to this:
, $element = $(element).is('body') ? $(window) : $(window) //$(element)
(note that the element after the // is a comment so I don't forget I changed it)
And that fixed it for me.
ScrollSpy is pretty unforgiving and the documentation is sparse to say the least...there are different and conflicting fixes for this based on your implementation...
Nested content was my problem. This fixed it for me:
(1) make sure all hrefs in your nav match a corresponding ID in your spied upon target container.
(2) If the items in your spied upon content container are nested then it won't work...
This:
<ul class="nav" id="sidebar">
<li>
<a href="#navItem1" />
</li>
<li>
<a href="#navItem2" />
</li>
</ul>
<div id="spiedContent"> <!-- nested content -->
<div id="navItem1">
<div id="navItem2"></div>
</div>
</div>
To This:
<ul class="nav" id="sidebar">
<li>
<a href="#navItem1" />
</li>
<li>
<a href="#navItem2" />
</li>
</ul>
<div id="spiedContent"> <!-- flat content -->
<div id="navItem1"></div>
<div id="navItem2"></div>
</div>
All good!
My guess if you looked at the scrollspy code its not looking past the first child of the spied container for the ids.
Make sure you're not mixing implementations. You don't need $('#content).scrollspy() if you have data-spy="scroll" data-target=".bs-docs-sidebar" on your body tag.
I think that this might be a bug in ScrollSpy.
I also had the same problem and when I stepped through the code I could see that the offset for all the targets were the same (-95px). I checked where these were being set and it was using the position() function. This returns the position of the element relative to the offset of the parent.
I changed this to use the offset() function instead. This function returns the position of the element relative to the offset of the page. Once I did this then it worked perfectly. Not sure why this isn't the default behaviour.
The reason that the position() function wasn't working in my case was because I had to have an empty div which was actually absolutely positioned 95px above the top of its container. I needed this as my target so that the headings weren't hidden behind my header that was fixed to the top of the page.
When I was trying to figure out this issue, I used some of what Mehdi Benadda said and added position: relative; to the body. I added this to the stylesheet:
body {
position: relative;
height: 100%;
}
Hopefully this helps someone in the future.
You don't have to call method scrollspy().
Also you don't need set height: 100% anywhere.
All you need is:
position: relative; for body
add data-bs-spy="scroll" to your content or body
add data-bs-target with navbar id
https://i.imgur.com/M5jib0t.png
It helps me.
It seems that scroll spy work only when used container has a scrollbar (Tested with bootstrap 5).
You can put data-bs-spy="scroll" and data-bs-target="#target-nav" attributes in the nearest parent having a scrollbar.
In my case, i had added the scrollspy component of bootstrap version 5.2.3 but my bootstrap js cdn was 5.0. After i added the 5.2.3 js cdn, it worked!
You may also add the downladed bootstrap js files as well.
And make sure to add the bootstrap css cdn too!
I have a fixed navigation at the top of the page that has links that smoothly scroll you around to different sections (IDs) of the page via jQuery.
Would there be any possible way to have a css class (e.g. .current) appended to the navigation links depending on what section of the page you're at?
For example, when I click "About", it'll scroll down to the About section and also make the navigation text orange as long as you stay in that section?
I've seen this done somewhere a while ago but I don't remember the website or even how to describe this behavior to search for it.
EDIT: Here's a link to something siliar to what I'm looking for:
http://www.fat-man-collective.com/hello.php
The icons change depending on your position on the page.
Script:
<script>
function goToByScroll(id){
$('html,body').animate({scrollTop: $("#"+id).offset().top - 50},'500');
}
</script>
HTML:
About
[...]
<div id="about">
[...]
</div>
Any help is greatly appreciated.
This would be possible by examing the offset()* function of the desired element and then coding to respond accordingly. You can track the offset of an element, and depending on the resulting offset, you would apply or remove the appropriate classes accordingly.
*See the documentation for offset()
When you click on a section in the navigation, just modify the class so that the style is what you want it to be.
Secondly, you'll need to add an event handler on the scroll event that similar modifies the nav's class.
Try this:
function goToByScroll(id){
$('ul#nav li a').removeClass('active'); // elements in menu
$(this).addClass('active');
$('html,body').animate({scrollTop: $("#"+id).offset().top - 50},'500');
}
Four years later...for those that have the same question since hopefully the OP has solved his problem by now.
Check out Bootstrap's ScrollSpy plugin, which "is for automatically updating nav targets based on scroll position." For an example of using the ScrollSpy plugin see this detailed tutorial on how to make a floating, updating navbar (like the Bootstrap site uses).