API Opening overlays

Fragment updates will render within the current layer by default.

Use an [up-layer=new] attribute to open the fragment in a new overlay instead:

<a href="/users/new/" up-layer="new">

Overlay modes

The overlay will open with the default mode (a modal dialog). To use a different mode, like popup or drawer, use an [up-mode] attribute:

<a href="/users/new/" up-layer="new" up-mode="drawer">

You can change the default layer mode in up.layer.config.mode.

As a shorthand you may also append the layer mode to the [up-layer=new] attribute:

<a href="/users/new/" up-layer="new drawer">

Close conditions

When opening an overlay, you may define a condition when the overlay interaction ends. When the condition occurs, the overlay is automatically closed and a callback is run.

See close conditions for details.

Replacing existing overlays

By default the new overlay will be stacked on top of the current layer. There is no limit for the number of stacked layers.

You can pass an option [up-layer="swap"] or [up-layer="shatter"] to replace existing overlays:

Opening overlays from local content

The [up-content] attribute lets you open an overlay without going through the server:

<a up-layer="new popup" up-content="<p>Helpful instructions here</p>"> <!-- mark-phrase "up-content" -->
  Help
</a>

Since we didn't provide an [up-target] selector, it will be wrapped in a container matching the overlay's main target.

Instead of embedding an HTML string, you can also refer to a template:

<a up-layer="new popup" up-content="#help"> <!-- mark-phrase "up-content" -->
  Help
</a>

<template id="help">
  <p>Helpful instructions here</p>
</template>

Opening overlays from JavaScript

When rendering fragments from JavaScript, you can pass { layer: 'new' } to open the fragment in a new overlay:

up.navigate({ url: '/users/new', layer: 'new' })

Instead of up.navigate() or up.render() you may also open layers with up.layer.open(). It returns a promise for the new up.Layer instance:

let layer = await up.layer.open({ url: '/users/new' })

Choose a different layer mode by passing a { mode } option.