I have a div that is serving as a chat, and depending on the users actions I append messages. I want it so, after each message is appended, the div will scroll down. However, it's not working 100%.
Here is the fiddle to check out: https://jsfiddle.net/mfj1ub8c/
I'm pretty sure it has something to do with the delays/fadein/hide methods on each append, but they need to be there to give a certain effect that is needed.
Any ideas on how to solve this?
The problem is scrollDown is being called before the element is actually shown (display: block) by fadeIn, so the scroll height hasn't changed yet. If you call scrollDown after fadeIn is complete, you'd miss the animation when the new content is off-screen. What you want to do is scroll when the element is displayed, but still transparent (opacity: 0). If you are on jQuery 1.8+ you can use the start option.
Here is a working fiddle https://jsfiddle.net/mfj1ub8c/2/
Also you are overshooting your scrollTop, which won't cause you problems here, but it should be the whole height minus the visible height.
$('#chat').prop("scrollHeight") - $('#chat').height()
Call scrollDown only when fadeIn is complete. You can use the complete callback parameter of fadeIn.
e.g.
.fadeIn(500, scrollDown))
Fixed fiddle: https://jsfiddle.net/mfj1ub8c/1/
Related
I have a div that I animate away using a fade. Upon finishing, I believe it sets display:none at which point, the content below it jumps up to fill the space. How can I make this more smooth? I thought maybe at the end of the animation I could insert a visibility:hidden div of the exact same height, and animate its height shrinking. But this feels like such a common thing to do, I don't want to reinvent the wheel here.
display: none removes the element from the DOM completely and naturally the rest of the elements will just 'jump up' up to take its place... If you don't want this you can simply set it visibility: hidden or opacity: 0... instead of creating a placeholder div with the same...
I set up a code that have this traits:
the navigation Items-texts- are hidden behind the some Divs I'll call them Navigation Divs
when the mouse move over the some of pixels-navigation Divs-, the text that they are behind this, slide right and left and in some cases, some of them move top and bottom about 15 px with animate() method...
when the mouse move to another Div, other text will be reset to first position
for next action and I did this with:
$(document).on('mouseover', '.pixel#p18', function(){
$('.submenus').not("this Div's TEXT").fadeOut('fast').removeAttr('style');
});/* this Div's Text is for Example*/
and I wrote this kind for all of my navigation texts..
Now my problem is:
When I hover mouse on one of navigation Divs, some of the texts that they did not animated, become to visible because of removeAttr('style')!!! But I don't want that...
is there any alternative way that I can slide the texts or other elements to left, right, top and down with optional values of move...??? for example 23px to left or 17px to top... etc???- I'm familiyar with slideUp and Down and toggle but not sure that they are good enough for my code...
Do you have some better Idea for this---that actualy you'll have because I think this is very bad
and the last Question is that why my codes are very slow in running? the animations that I wrote have lak some times and I'm not Sure that the problem is my selector or other stuff.
For this you need something like .animate which has a callback. So something like:
$('.submenus').not("this Div's TEXT").animate({opacity:0},500,'linear', function() {
$(this).removeAttr('style');
});
This will only remove the attribute when the animation is complete.
I'm using a drop-down-menu which I modified to use animations such as SlideOut and FadeIn using onmouseover and onmouseout.
The problem comes after hovering through all of the nested lists a few times, which results in the second nested list becoming cut off.
You can replicate the bug by moving from "nav 1" to "nav 2" and back again rapidly.
Link to jsFiddle
Screenshot of cut-off:
http://dl.dropbox.com/u/53879403/screenshot.png
Please and thank you for any advice / criticism.
Please see this fiddle: http://jsfiddle.net/SuRJ9/
The code I've changed:
function slideDown(toSlide) {
currentHover(toSlide);
$($(toSlide).children('ul')[0]).slideDown('medium',
function(){ $(this).css('overflow','visible') });
}
I've added resetting overflow to visible after finishing animation. overflow is set to hidden by jQuery in order to make sliding animation.
Also, please don't use onmouseout="slideUp(this)" and onmouseover="slideDown(this)", this is obtrusive JavaScript and is a bad technique. You should assign these events using jQuery.
$.fadeOut/In() apply certain styles before running the animation. These are remove when the animation completes.
Your fadeOutNav() is calling stop(true) , which if done while fadeOut() or fadeIn() are working, will leave the style's they have applied to the element. In this case overflow:hidden on the parent ul. You can remove the stop and let the effects bubble up, or insert a .css('overflow','') to your chain.
I have a scrolling div with a visible width that's half of the content. (The actual content is double the width.)
I just want a simple javascript utilizing jquery (serialscroll plugin is really too much) to trigger the scroll to slide into view the next half of the content, then click again the slide it back. (the amount of the sliding is a static #)
I've got a jsfiddle with what I have so far. The initial slide left works, but the slide back does not and then it stops working altogether after that.
http://jsfiddle.net/w7Uvj/1/
Use left alone (or right alone) instead of left and right fiddle
Change your second function to:
$('.back').click(function() {
$('#maincol').animate({
'right':'-=400px'},750);
$(this).fadeOut(500);
$('.next').delay(600).fadeIn(500);
});
jsFiddle example.
You can also set the right property to just 0px as well (instead of -=400px).
I am currently learning jQuery. I'd like to know how to make an image slide in when you click on its edge, then click again and it slides away. Similar to this:
http://www.karenmillen.com/
If you see the right hand side and click, there is the effect that i'm looking for. I assume this will involve making a div and giving it a background image then using some jquery to make the div slide into view. Of course the div could have other content such as html. Any ideas?
Would the .slideDown() method work?
if you want a div to slideDown() first it has to hidden.
so use $("#div_Id").hide();
after that use $("#div_Id").slideDown('slow');
this will work
Check out slideToggle
Here's what i have so far:
$(document).ready(function() {
$('.inner').hide();
$("button").click(function() {
$("#static_image").hide();
$('.inner').slideToggle(300);
});
});
So basically the animated div begins hidden. There's another div with a background image that is lined up to look as if the animated div is still sticking out a bit. Then clicking a button makes the static div dissapear and the animated div slide into view. However i'm not sure how to make the timing perfect so it's smooth and people won't know there are two divs. The animated div takes a fraction of a second to move up to where the div with the static image was, however the static images disappears immediately leaving a non-smooth animation.
One other thing, how do i get the static image div to return at the moment that the animated div moves back down after a user click? It can't be at the exact moment the user clicks 'retract' button else it'd definitely appear before it's supposed to.
In order to use the animate() function add a CSS class to the <div> tag that has a height attribute, it can either be in pixels or %, this will be the initial height. After that then you can use the animate().
$('#mydiv').animate({
height: 500px
}, 5000, function() {
// Animation complete.
});
This will slide the div to 500px, which will take 5 seconds.