BABAKFP

Svelte OutClick

on:outclick

A Svelte component that allows you to listen to the clicks that happen outside of an element.

Why choose this over the other packages?

Installation

Please check out the CHANGELOG before updating to the newest version. Restart your app after the update.

pnpm add -D svelte-outclick

How it works

It works the same as the Javascript click event. A few events are attached to the window and it checks whether the event target is contained within the element. If the element didn’t contain the event target, it means the click happened outside of the element.

<script>
	import OutClick from 'svelte-outclick'
	let count = 0
</script>

<OutClick
	on:outclick={() => count++}
>
	{count} times clicked outside
</OutClick>

Props

Excluding elements

You may want to exclude some elements from triggering the event. For example, a button that opens a popup must be excluded, so the popup doesn’t get closed immediately after you open it. Since the button that triggers the popup is located outside of the popup itself, in any time clicking on it will trigger the event.

excludeElements

  • Type: HTMLElement | HTMLElement[]

This prop expects HTML elements. Clicks on those elements (and their children) will be ignored. Learn about bind:this.

<script>
	import OutClick from 'svelte-outclick'
	let count = 0
	let excludedElement
</script>

<OutClick
	on:outclick={() => count++}
	excludeElements={excludedElement}
>
	{count} times clicked outside
</OutClick>

<div bind:this={excludedElement}>
	This doesn't trigger outclick
</div>

This prop can receive a single element or an array of elements.

excludeQuerySelectorAll

  • Type: string

This prop expects a string of css selectors. Clicks on those elements (and their children) will be ignored.

<script>
	import OutClick from 'svelte-outclick'
	let count = 0
</script>

<OutClick
	on:outclick={() => count++}
	excludeQuerySelectorAll=".excluded-element"
>
	{count} times clicked outside
</OutClick>

<div class="excluded-element">
	This doesn't trigger outclick
</div>

This prop works the same as the querySelectorAll method. It can contain any valid CSS selectors, for example: "#element1, .element2".

class prop

  • Type: string

This is equivalent to the CSS class attribute. You can seamlessly utilize tools such as TailwindCSS by adding your classes in the usual manner, without encountering any issues.

<script>
	import OutClick from 'svelte-outclick'
	let count = 0
</script>

<div>
	<OutClick
		class="my-custom-class another-class"
		on:outclick={() => count++}
	>
		{count} times clicked outside
	</OutClick>
</div>

<style lang="postcss">
	/* You need to use :global() here because of some stupid issue with Svelte. You also need to use an extra element (div) to wrap the component inside it, to scope the styles. */
	div :global(.my-custom-class) {
		color: red;
	}
</style>

includeSelf

  • Type: boolean
  • Default: false

For example, if you want to close the dropdown when you click on any of its items, set the value of this option to true, so a self-click can trigger the event.

halfClick

  • Type: boolean
  • Default: true

If true, pointerdown can solely determine the click outside. If false, outclick will happen when pointerdown and pointerup events happen after eachother, outside of the element.

tag

  • Type: string
  • Default: "div"

You can change the tag name of the wrapper element.

Custom attributes

You can add any custom attributes to the wrapper element.

<OutClick aria-label="Hello, World!" />

No extra wrapper

Actually, there is an HTML <div> wrapper, but it doesn’t affect the layout because of display: contents. If you use the class prop, the default display will be automatically removed.

FAQ

Why are we not using the click event to capture the outclick event?

At first, we were using the click event to capture the outclick event, but later because of this issue we started using the mousedown event instead; and later because of this issue we started using the pointerdown even. Later I added the ability to use pointerup event with the pointerdown event to fully simulate the click event.

Learn more

  • keydown event on document.body is ignored because this is how it works when you use click event instead.
  • keydown event only triggers with Enter, NumpadEnter, and Space keys (because this is how it works when you use the click event instead).
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