Alert Dialog

A modal dialog that interrupts the user with important content and expects a response.

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<twig:AlertDialog id="delete_account">
    <twig:AlertDialog:Trigger>
        <twig:Button variant="outline" {{ ...trigger_attrs }}>Show Dialog</twig:Button>
    </twig:AlertDialog:Trigger>
    <twig:AlertDialog:Content>
        <twig:AlertDialog:Header>
            <twig:AlertDialog:Title>Are you absolutely sure?</twig:AlertDialog:Title>
            <twig:AlertDialog:Description>
                This action cannot be undone. This will permanently delete your
                account and remove your data from our servers.
            </twig:AlertDialog:Description>
        </twig:AlertDialog:Header>
        <twig:AlertDialog:Footer>
            <twig:AlertDialog:Cancel>Cancel</twig:AlertDialog:Cancel>
            <twig:AlertDialog:Action>Continue</twig:AlertDialog:Action>
        </twig:AlertDialog:Footer>
    </twig:AlertDialog:Content>
</twig:AlertDialog>

Installation

bin/console ux:install alert-dialog --kit shadcn

That's it!

Install the following Composer dependencies:

composer require twig/extra-bundle twig/html-extra:^3.12.0 tales-from-a-dev/twig-tailwind-extra:^1.0.0

Copy the following file(s) into your Symfony app:

import { Controller } from '@hotwired/stimulus';

export default class extends Controller {
    static targets = ['trigger', 'dialog'];

    async open() {
        this.dialogTarget.showModal();

        if (this.hasTriggerTarget) {
            if (this.dialogTarget.getAnimations().length > 0) {
                this.dialogTarget.addEventListener('transitionend', () => {
                    this.triggerTarget.setAttribute('aria-expanded', 'true');
                });
            } else {
                this.triggerTarget.setAttribute('aria-expanded', 'true');
            }
        }
    }

    async close() {
        this.dialogTarget.close();

        if (this.hasTriggerTarget) {
            if (this.dialogTarget.getAnimations().length > 0) {
                this.dialogTarget.addEventListener('transitionend', () => {
                    this.triggerTarget.setAttribute('aria-expanded', 'false');
                });
            } else {
                this.triggerTarget.setAttribute('aria-expanded', 'false');
            }
        }
    }
}
{# @prop id string Unique suffix identifier for generating AlertDialog internal IDs #}
{# @block content The default block #}
{%- props id -%}

{%- set _alert_dialog_id = 'alert-dialog-' ~ id -%}
{%- set _alert_dialog_title_id = _alert_dialog_id ~ '-title' -%}
{%- set _alert_dialog_description_id = _alert_dialog_id ~ '-description' -%}
<div {{ attributes.defaults({
    'data-controller': 'alert-dialog',
    'aria-labelledby': _alert_dialog_title_id,
    'aria-describedby': _alert_dialog_description_id,
}) }}>
    {% block content %}{% endblock %}
</div>
{# @prop variant 'default'|'secondary'|'destructive'|'outline'|'ghost'|'link' The variant, default to `default` #}
{# @block content The default block #}
{%- props variant = 'default' -%}
<twig:Button variant="{{ variant }}" {{ ...attributes }}>
    {{- block(outerBlocks.content) -}}
</twig:Button>
{# @block content The default block #}
<twig:Button variant="outline" data-action="click->alert-dialog#close" {{ ...attributes }}>
    {{- block(outerBlocks.content) -}}
</twig:Button>
{# @block content The default block #}
<dialog
    id="{{ _alert_dialog_id }}"
    class="{{ 'text-foreground bg-background fixed top-[50%] left-[50%] z-50 max-w-[calc(100%-2rem)] translate-x-[-50%] translate-y-[-50%] scale-95 gap-4 rounded-lg border p-6 opacity-0 shadow-lg transition-all transition-discrete duration-200 backdrop:transition-discrete backdrop:duration-150 open:grid open:scale-100 open:opacity-100 open:backdrop:bg-black/50 sm:max-w-lg starting:open:scale-95 starting:open:opacity-0 ' ~ attributes.render('class')|tailwind_merge }}"
    data-alert-dialog-target="dialog"
    data-action="keydown.esc->alert-dialog#close:prevent"
    {{ attributes.without('id') }}
>
    {%- block content %}{% endblock -%}
</dialog>
{# @block content The default block #}
<p
    id="{{ _alert_dialog_description_id }}"
    class="{{ 'text-muted-foreground text-sm ' ~ attributes.render('class')|tailwind_merge }}"
    {{ attributes.without('id') }}
>
    {%- block content %}{% endblock -%}
</p>
{# @block content The default block #}
<footer
    class="{{ 'flex flex-col-reverse gap-2 sm:flex-row sm:justify-end ' ~ attributes.render('class')|tailwind_merge }}"
    {{ attributes }}
>
    {%- block content %}{% endblock -%}
</footer>
{# @block content The default block #}
<header
    class="{{ 'flex flex-col gap-2 text-center sm:text-left ' ~ attributes.render('class')|tailwind_merge }}"
    {{ attributes }}
>
    {%- block content %}{% endblock -%}
</header>
{# @block content The default block #}
<h2
    id="{{ _alert_dialog_title_id }}"
    class="{{ 'text-lg font-semibold ' ~ attributes.render('class')|tailwind_merge }}"
    {{ attributes.without('id') }}
>
    {%- block content %}{% endblock -%}
</h2>
{# @block content The default block #}
{%- set trigger_attrs = {
    'data-action': 'click->alert-dialog#open',
    'data-alert-dialog-target': 'trigger',
    'aria-haspopup': 'dialog',
    'aria-expanded': 'false',
} -%}
{%- block content %}{% endblock -%}
{# @prop variant 'default'|'secondary'|'destructive'|'outline'|'ghost'|'link' The variant, default to `default` #}
{# @prop size 'default'|'xs'|'sm'|'lg'|'icon'|'icon-xs'|'icon-sm'|'icon-lg' The size, default to `default` #}
{# @prop as 'button' The HTML tag to use, default to `button` #}
{# @block content The default block #}
{%- props variant = 'default', size = 'default', as = 'button' -%}
{%- set style = html_cva(
    base: "focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:aria-invalid:border-destructive/50 rounded-lg border border-transparent bg-clip-padding text-sm font-medium focus-visible:ring-[3px] aria-invalid:ring-[3px] [&_svg:not([class*='size-'])]:size-4 inline-flex items-center justify-center whitespace-nowrap transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none shrink-0 [&_svg]:shrink-0 outline-none group/button select-none",
    variants: {
        variant: {
            default: 'bg-primary text-primary-foreground [a]:hover:bg-primary/80',
            secondary: 'bg-secondary text-secondary-foreground hover:bg-secondary/80 aria-expanded:bg-secondary aria-expanded:text-secondary-foreground',
            destructive: 'bg-destructive/10 hover:bg-destructive/20 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/20 text-destructive focus-visible:border-destructive/40 dark:hover:bg-destructive/30',
            outline: 'border-border bg-background hover:bg-muted hover:text-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50 aria-expanded:bg-muted aria-expanded:text-foreground',
            ghost: 'hover:bg-muted hover:text-foreground dark:hover:bg-muted/50 aria-expanded:bg-muted aria-expanded:text-foreground',
            link: 'text-primary underline-offset-4 hover:underline',
        },
        size: {
            default: 'h-8 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2',
            xs: "h-6 gap-1 rounded-[min(var(--radius-md),10px)] px-2 text-xs in-data-[slot=button-group]:rounded-lg has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3",
            sm: "h-7 gap-1 rounded-[min(var(--radius-md),12px)] px-2.5 text-[0.8rem] in-data-[slot=button-group]:rounded-lg has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3.5",
            lg: 'h-9 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-3 has-data-[icon=inline-start]:pl-3',
            icon: 'size-8',
            'icon-xs': "size-6 rounded-[min(var(--radius-md),10px)] in-data-[slot=button-group]:rounded-lg [&_svg:not([class*='size-'])]:size-3",
            'icon-sm': 'size-7 rounded-[min(var(--radius-md),12px)] in-data-[slot=button-group]:rounded-lg',
            'icon-lg': 'size-9',
        },
    },
) -%}
<{{ as }}
    data-slot="button"
    class="{{ style.apply({variant: variant, size: size}, attributes.render('class'))|tailwind_merge }}"
    {{ attributes }}
>
    {%- block content %}{% endblock -%}
</{{ as }}>

Happy coding!

Usage

<twig:AlertDialog id="delete_account">
    <twig:AlertDialog:Trigger>
        <twig:Button variant="outline" {{ ...trigger_attrs }}>Show Dialog</twig:Button>
    </twig:AlertDialog:Trigger>
    <twig:AlertDialog:Content>
        <twig:AlertDialog:Header>
            <twig:AlertDialog:Title>Are you absolutely sure?</twig:AlertDialog:Title>
            <twig:AlertDialog:Description>
                This action cannot be undone. This will permanently delete your
                account and remove your data from our servers.
            </twig:AlertDialog:Description>
        </twig:AlertDialog:Header>
        <twig:AlertDialog:Footer>
            <twig:AlertDialog:Cancel>Cancel</twig:AlertDialog:Cancel>
            <twig:AlertDialog:Action>Continue</twig:AlertDialog:Action>
        </twig:AlertDialog:Footer>
    </twig:AlertDialog:Content>
</twig:AlertDialog>

API Reference

AlertDialog

Prop Type Description
id string Unique suffix identifier for generating AlertDialog internal IDs
Block Description
content The default block

AlertDialog:Action

Prop Type Description
variant 'default'|'secondary'|'destructive'|'outline'|'ghost'|'link' The variant, default to default
Block Description
content The default block

AlertDialog:Cancel

Block Description
content The default block

AlertDialog:Content

Block Description
content The default block

AlertDialog:Description

Block Description
content The default block

AlertDialog:Footer

Block Description
content The default block

AlertDialog:Header

Block Description
content The default block

AlertDialog:Title

Block Description
content The default block

AlertDialog:Trigger

Block Description
content The default block