We Keep Coding

Preventing hover intent from seeing a mouseleave when moving into an overlaid element

This answer:
cancelling mouseout event when element is overlaid
Gets somewhere near, but isn't really what I am after as it's sort of reversing my problem.
I am making an image gallery similar to the Facebook image viewer.
An image is loaded into an absolutely positioned div which is centred on screen and floats above the main page with a z-index value.
To the left and right of the image are small div elements with absolute positioning and a z-index 1 higher than the image. These div elements are left and right arrows to click through the gallery.
The arrows are hidden when the image loads, but then when the user moves his mouse over the image, the arrows should fade in, then if they move off again, they fade out... just as the Facebook viewer does.
I am using hoverIntent to achieve this, and it works fine.
BUT... when the user moves his/her mouse into the arrow div, hoverIntent sees this as a mouseleave event on the image which is underneath and hides the arrow...
So... what I need is to be able to have hoverIntent ignore the arrow divs.
The code I am using for hoverIntent is quite straight foward:
function showArrows() {
$('.imgNav').fadeIn(500);
};
function hideArrows() {
$('.imgNav').fadeOut(500);
};
$(img).hoverIntent(showArrows, hideArrows);
Obviously img is the jQuery image object and .imgNav is the classname for the arrows.
EDIT:
I have created a fiddle here: http://jsfiddle.net/jhartnoll/cE6gu/

Using your fiddle example, changing
$('.enlarged').hoverIntent(showArrows, hideArrows);
to
$('.imgViewer').hoverIntent(showArrows, hideArrows);
did the trick for me http://jsfiddle.net/cE6gu/4/
Note, on hoverintent website it says its designed to ignore children (here) so you just need to make sure you call hoverintent on a parent element that contains all these divs.

How do you invoke the highlight affect (similar to mouse over) progmatically in Javascript/Jquery?

I am writing an interface where there will be a list of wide buttons, I want to be able to highlight a button based on a mouse being moved up or down.
Selecting the button below the current highlighted button when the mouse moves down and selects the button above when the mouse moves up.
I was about to write a load of CSS manipulating Jquery code to do this, but something about doing that does not feel right.
Any suggestions welcome (including thats the way to do it fool)

Use CSS to highlight your button
Example:
button{color: green}
button:hover{color: red}

How do I alter behaviour of jQuery .mouseleave() based on the element the cursor moves *to*?

Hi guys I have put together a simple dropdown menu system that uses hoverIntent to display the submenu and also display a lightbox style 'lights out' dark background.
I've got the menu working, but I'd like to update it so if you move from one item to the next the dark background stays where it is rather than disappearing and reappearing.
I have created a jsFiddle so you can see what I'm talking about:
http://jsfiddle.net/gGd6Y/10/
Try hovering over menu item 1 then moving to item 2.
I would like to be able to see the element the mouse cursor has moved to in the .mouseleave() part of the call to HoverIntent, then if it's another menu item I would prevent the dark background from being switched off.

With the way the HTML is currently setup it can't be done. The shadow covers the other hoverable elements. So when you mouseleave you are hovering over the shadow not the other LIs.
My proposed solution: http://jsfiddle.net/iambriansreed/k98LP/
I made the menu appear above the shadow. I delayed the shadow fade out action and made sure no other menu item was hovered before actually fading out.

See if this helps: http://jsfiddle.net/gGd6Y/11/
I've changed the menu items to stay on top of the overlay.
Edit:
Solution proposed in my last comment:
http://jsfiddle.net/gGd6Y/16/

Simple solution is to add mouseleave listener to container of all items.
More flexible solution is to store boolean values is_element_hovered for each element. When mouseleave event happens, set small delay and after that delay check your boolean values and set background animation properly.

How to turn off element CSS background when dragged

I've build a drag and drop interface using JavaScript where users can click and drag a link (that sometimes has a CSS background image) and drop it onto the canvas.
My problem is that the mouse cursor has the link background image beneath it during dragging. I need to add my own cursor design, so is there any way to turn this CSS background off so that it doesn't follow the mouse upon dragging?

have you tried setting :active pseudo class for anchor tags?
http://www.w3schools.com/cssref/sel_active.asp
then if that isn't work quite yet you could use !important after your deceleration possibly?
and example could be
.links:active {
background-image: none !important;
}
when the user releases the background image should return.

The best solution I found for this problem was to use jQuery to assign e.preventDefault() to the click event of the link, thus disabling the background drag effect. Then, if you want a custom cursor upon dragging, write a script to match an absolutely positioned div's (with the image as the background) x,y cords to the mouse position.

HTML/CSS/JS: Rollover-Effect for navigation-menu

I got another CSS/JS question: I want to make a navigation menu, where there is at the beginning a div with just a text in it. If I hover with the mouse on it, there should appear a background from the left to the right.
Is this only possible with JS (so if hover, an interval gets startet which moves the background behind the text) or are there any other possibilities?
I hope you understood what I tried to say ...
Thanks for help!
Flo
EDIT: It's something moving just like this navigation here: http://iipvapi.com/, but only a simple background from the left to the right.

You could use the :hover CSS selector. This will not provide animation functionality though. It will just apply the style or not based on whether you are hovering.
You could do it with pure JavaScript, but it would be a little awkward if you want animation.
You could do it with JavaScript using jQuery, which provides animation functionality and is easy to use. You probably want the animate function, as it sounds like a bit more of a custom solution than functions such as slideDown would provide.