Automatically showing div on mouseover - javascript

This is probably a simple problem I'm having, but for the life of me, I can't seem to figure it out. If any of you could help me with this, I would be much obliged.
I'm using JQuery to make a menu appear when a user hovers over a certain div. The menu will be displayed on the top left of the div.
I got this to work, but when I try to click on a menu item of the div that appeared, the div disappears again, because the mouse is technically not over the div, but over the menu.
In the example below, "#blockMenu" is the menu that dynamically appears. I fade the current div ($this)) out a bit, to emphasize the menu as well.
I use the following code to make this happen:
$("div.editable").hover(function () {
$(this).fadeTo(500, 0.25);
$('#Menu').css("position", "absolute");
$("#Menu").css("top", $(this).offset().top);
$("#Menu").css("left", $(this).offset().left);
$("#Menu").css("zIndex", "10000");
$('#Menu').show();
}, function (e) { // on mouseout
$(this).fadeTo(500, 1);
$("#Menu").hide();
});
I want the menu to disappear when the cursor leaves the div, while the div remains faded out when the cursor is on the menu. When the cursor leaves the menu AND the div at the same time, the div should fade back in and the menu should disappear.
Does anyone have an idea of how I could edit my code to make this work correctly?
Thank you very much for any help you can give me.

Just use the :hover pseudo class, that's likely to help the situation. You'll lose animation effects, but it could sure make things easier, and take javascript out of the picture

Add a hover function for the menu and set some state when the mouse is hovering over the menu and only take the menu down if the mouse is not over the div AND not over the menu.

Related

jQuery UX glitches in CSS dropdown menu

Below is a script with a few bugs and I am trying to work out the kinks. The main bug is a confusion or mix-up between currently selected(hovered) items' sub-menus and previously selected sub-menus.
jQuery(document).ready(function($) {
$("ul.menu > li").hover(
function() {
$(this).find("ul.sub-menu").stop().animate({
height: 'toggle',
opacity: 'toggle'
});
}
);
});
The bug doesn't appear on the initial hover of each parent item but seems to only happen, as can be seen from this fiddle, if hovered over the 2nd parent item, then hover the 1st parent, and then quickly hover into 1st sub-menu, you will see the desired sub-menu disappear, and the previously selected sub-menu reappears. Also, I should also add that if hovered over the 3rd parent item, then hover over the 2nd parent, and then quickly hover into 2nd sub-menu, you will again see the undesired effects, or bug.
Another less detailed bug or glitch is that after the right combination or amount of random hovers 1 of 3 sub-menus permanatly disappears. Basically, the script is very unstable; how can I make this script a rock solid UI? How can these bugs be eliminated to ensure the best UX? Thanks.
Problem is that you are catching the second sub menu while it is still visible and it counts as hovering it once again.
You can solve this pretty easily by updating the z-index for the sub-menu corresponding to the hovered element:
$("ul.sub-menu").css('z-index', 1);
$(this).find("ul.sub-menu").css('z-index', 2).stop()...
http://jsfiddle.net/pF8wZ/6/

jQuery hover repositions on subsequent hovers

I have a hover event set on an element that use's jQuery UI's position function to show a div right underneath it, with the "out" set to hide that div.
The problem is, subsequent hovers position that div further and further on each hover.
Example: http://jsfiddle.net/Shpigford/8ZkgJ/
Hover over the red box, then hover over it again and you'll see the blue box quickly get positioned further and further to the right.
Same thing happens if I change to a click event. Seems like something odd is happening with positioning when I hide the div and then try to show it again.
Instead of position({...}).show(), use show().position({...}). The reason is that positon won't work when the element is invisible. You can find the following note at http://api.jqueryui.com/position/:
jQuery UI does not support positioning hidden elements

jQuery UI menubar, position submenu absolute left

I have created a jQuery UI navigation menu, using the menubar widget. It works how I expected except I would like it to behave slightly differently. As you can see here http://jsfiddle.net/hcharge/DebVr/ the submenu expands out and is positioned relative to the link that was clicked.
I would like it to expand out and stick to the left of the navigation bar, no matter which link was clicked, the submenu will always stay the same width. Like this image...
I've tried setting a position relative to the container and absolutely positioning the submenu, however I think that jQuery UI positioning is overriding this. Any advice would be great, cheers.
Edit: this needs to be done with JS as it has to be clicks and not hover actions that trigger the dropdowns
Why don't you do it all only with CSS?
See http://jsfiddle.net/DebVr/8/
Note: the background is blue in order to see the white borders.
Edit:
If you want some functionality, you can add it later, but I think that the basis should be with CSS.
See my code with some functionality here: http://jsfiddle.net/DebVr/11/
var links=$('#bar1>li>a').each(function(index,obj) {
obj.tabindex=index+1;
});
$('#bar1>li>a').focus(
function(){$(this).siblings('ul').show();}
);
$('#bar1>li>a').blur(
function(){$('#bar1>li>ul').hide();}
);
Edit 2:
If you want to hide again the submenu when clicked, use the following code:
var links=$('#bar1>li>a').each(function(index,obj) {
obj.tabIndex=index+1;
});
$('#bar1>li>a').focus(function(){
$(this).siblings('ul').addClass('show');
});
$('#bar1>li>a').mousedown(function(){
$(this).siblings('ul').toggleClass('show');
});
$('#bar1>li>a').blur(function(){
$(this).siblings('ul').removeClass('show');
});
And CSS:
#bar1>li>ul.show{
display:block;
}
See it here: http://jsfiddle.net/DebVr/16/
Edit 3:
In the code above, I replaced obj.tabindex with obj.tabIndex, and updated the jsfiddle.
The problem is that if you click on the submenu, the anchor loses focus and then the submenu dissapears. On Chrome it can be easily fixed setting the focus event to #bar1>li instead of #bar1>li>a, but then the event doesn't work on firefox... I'm working on a solution, but meanwhile you can use http://jsfiddle.net/DebVr/16/.
Edit 4:
Finally, the fixed code: http://jsfiddle.net/DebVr/18/
It works on Chrome, Firefox and IE.

jQuery - Only Call The Hover Out Function if Cursor Isn't Entering Any Siblings

I'm trying to create an effect similar to the navigation on this site: http://rogwai.com/. I'm fairly close as you can this in this jsFiddle.
It's working fine if you hover into one li at a time (i.e. from the bottom). If however, you slide horizontally through each list item the 'follower' returns to the active position or slides of the end after each item that's hovered over. Instead it should follow the mouse.
Looking at the code executed on hover out this is completely understandable. What I can't get my head around is how to make it only return to the active position or slide off the end when the mouse completely leaves the menu.
Hopefully that makes sense - you should see the problem straight away from the jsFiddle.
Thanks in advance.
What you can do is add the mouseenter part to the li as you have it, but put the mouseleave part on the entire ul. This way, the leave will only fire when you mouse out of the entire ul.
http://jsfiddle.net/YZr5b/6/
$('nav.block-system-main-menu ul li:not(.follower)').mouseenter(function() {
followerMove($(this));
});
$('nav.block-system-main-menu ul').mouseleave(function(){
followerMove($active);
});
Note, if you are really using jquery 1.2.6 (quite old), you will need to modify this a bit as mouseenter and mouseleave do not exist.

error offset().left in null or not an object [duplicate]

I have a menu system made up of divs and i want to animate the left property to slide each time the user mouses over a menu item but i need the outer div(which is black) element to expand as the menu items move left to right also I want the div element(.container) to slide back and contract the outer div element(this black div which is 0 width) I have a basic example done in jsFiddle it olny moves the elements to the left
Having a little trouble fully understanding, but is this sort of what you mean?
http://jsfiddle.net/V3RHr/2/
If I could rewrite your html a bit, I would put make each .menu-item into an unordered list.
When you mouseenter the unordered list, you expand the second container. Inside that mouseenter function, I would have a second event when you mouseenter a list item, you populate the second container and stopPropogation.
You could probably still do it with a mouseenter on the first container, and another mouseenter on the div.menu-item, but your first container has extra height and width.
You should be able to fix the left is null issue by having the code not execute on the last .content, like this:
$('.container').not(':last').find('.menu-item').mouseenter(function () {
This will not apply to the menu-items within the green box.
For the re-show issue, I would change the way you are showing. Instead of sliding the box out from behind the other, you can position it where you want it to end up and hide it, then you can use:
.animate({width: 'show'})
Which will give a similar sliding effect.
That, or do it similar to my response to your other question, only without the collapsing I had previously:
http://jsfiddle.net/V3RHr/3/

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