Navigation - Menus

Container-Adapting Tabs With "More" Button

A non-wrapping horizontal menu, with a "More" button on the end, which reveals a vertical list of menu items that overflow the limited horizontal space.

This looks like an excellent, accessible starting point for the priority navigation pattern:

Or the priority navigation pattern, or progressively collapsing navigation menu. We can name it in at least three ways.

There are multiple UX solutions for tabs and menus and each of them have their own advantages over another, you just need to pick the best for the case you are trying to solve. At design and development agency Kollegorna we were debating on the most appropriate UX technique for tabs for our client’s website…

We agreed it should be a one-liner because the amount of tab items is unknown and narrowed our options down to two: horizontal scroll and adaptive with “more” button. Firstly, the problem with the former one is that horizontal scroll as a feature is not always visually obvious for users (especially for narrow elements like tabs) whereas what else can be more obvious than a button (“more”), right? Secondly, scrolling horizontally using a mouse-controlled device isn’t a very comfortable thing to do, so we might need to make our UI more complex with additional arrow buttons. All considered, we ended up choosing the later option[.]

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Amazon's menu prediction cone

A screenshot of the Amazon menu, with a triangle/cone overlaid demonstrating the region wherein the menu will remain locked to the current item if the pointer doesn't stray outside of it.
A visualization of the mathematical cone that Amazon uses to predict the menu item you're heading for. Cone is not actually visible.

Standard drop-down menus that contain sub-menus very often have no concept of user intent, and this can lead to a repeating frustration that most of us have likely run into: straying off course by even a single pixel can cause the sub-menu to close instantly. Ways around this include adding a delay to try and account for user error, but that doesn’t feel as snappy. Amazon has a really clever solution that accounts for user error yet responds instantly:

At every position of the [pointer] you can picture a triangle between the current mouse position and the upper and lower right corners of the dropdown menu. If the next mouse position is within that triangle, the user is probably moving their [pointer] into the currently displayed submenu. Amazon uses this for a nice effect. As long as the [pointer] stays within that blue triangle the current submenu will stay open. It doesn’t matter if the [pointer] hovers over “Appstore for Android” momentarily – the user is probably heading toward “Learn more about Cloud Drive.”

And if the [pointer] goes outside of the blue triangle, they instantly switch the submenu, giving it a really responsive feel.

So if you’re as geeky as me and think something this trivial is cool, I made a jQuery plugin that fires events when detecting this sort of directional menu aiming: jQuery-menu-aim.

See the source link for more.

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