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feat(Button): shared button component with different sizes and variants

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This commit is contained in:
Ilia Mashkov
2026-02-24 17:58:56 +03:00
parent 3e8e8a70c7
commit d36ab3c993
2 changed files with 305 additions and 0 deletions
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120
src/shared/ui/Button/Button.stories.svelte Normal file
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<script module>
import { defineMeta } from '@storybook/addon-svelte-csf';
import Button from './Button.svelte';
const { Story } = defineMeta({
title: 'Shared/Button',
component: Button,
tags: ['autodocs'],
parameters: {
docs: {
description: {
component: '',
},
story: { inline: false },
},
layout: 'centered',
},
argTypes: {
variant: {
control: 'select',
options: ['primary', 'secondary', 'icon', 'outline', 'ghost'],
defaultValue: 'secondary',
},
size: {
control: 'select',
options: ['xs', 'sm', 'md', 'lg', 'xl'],
defaultValue: 'md',
},
iconPosition: {
control: 'select',
options: ['left', 'right'],
defaultValue: 'left',
},
active: {
control: 'boolean',
defaultValue: false,
},
animate: {
control: 'boolean',
defaultValue: true,
},
},
});
</script>
<script lang="ts">
import XIcon from '@lucide/svelte/icons/x';
import ButtonGroup from './ButtonGroup.svelte';
</script>
<Story
name="Default/Basic"
parameters={{ docs: { description: { story: 'Standard text button at all sizes' } } }}
>
{#snippet template(args)}
<ButtonGroup>
<Button {...args} size="xs">xs</Button>
<Button {...args} size="sm">sm</Button>
<Button {...args} size="md">md</Button>
<Button {...args} size="lg">lg</Button>
<Button {...args} size="xl">xl</Button>
</ButtonGroup>
{/snippet}
</Story>
<Story
name="Default/With Icon"
args={{ variant: 'secondary', size: 'md', iconPosition: 'left', active: false, animate: true }}
>
{#snippet template(args)}
<Button {...args}>
{#snippet icon()}
<XIcon />
{/snippet}
Close
</Button>
{/snippet}
</Story>
<Story
name="Primary"
args={{ variant: 'primary', size: 'md', iconPosition: 'left', active: false, animate: true }}
>
{#snippet template(args)}
<Button {...args}>Primary</Button>
{/snippet}
</Story>
<Story
name="Secondary"
args={{ variant: 'secondary', size: 'md', iconPosition: 'left', active: false, animate: true }}
>
{#snippet template(args)}
<Button {...args}>Secondary</Button>
{/snippet}
</Story>
<Story
name="Icon"
args={{ variant: 'icon', size: 'md', iconPosition: 'left', active: false, animate: true }}
>
{#snippet template(args)}
<Button {...args}>
{#snippet icon()}
<XIcon />
{/snippet}
</Button>
{/snippet}
</Story>
<Story
name="Ghost"
args={{ variant: 'ghost', size: 'md', iconPosition: 'left', active: false, animate: true }}
>
{#snippet template(args)}
<Button {...args}>
Ghost
</Button>
{/snippet}
</Story>

185
src/shared/ui/Button/Button.svelte Normal file
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<!--
Component: Button
design-system button. Uppercase, zero border-radius, Space Grotesk.
-->
<script lang="ts">
import { cn } from '$shared/shadcn/utils/shadcn-utils';
import type { Snippet } from 'svelte';
import type { HTMLButtonAttributes } from 'svelte/elements';
import type {
ButtonSize,
ButtonVariant,
IconPosition,
} from './types';
interface Props extends HTMLButtonAttributes {
variant?: ButtonVariant;
size?: ButtonSize;
/** Svelte snippet rendered as the icon. */
icon?: Snippet;
iconPosition?: IconPosition;
active?: boolean;
/**
* When true (default), adds `active:scale-[0.97]` on tap via CSS.
* Primary variant is excluded from scale — it shifts via translate instead.
*/
animate?: boolean;
children?: Snippet;
class?: string;
}
let {
variant = 'secondary',
size = 'md',
icon,
iconPosition = 'left',
active = false,
animate = true,
children,
class: className,
type = 'button',
disabled,
...rest
}: Props = $props();
// Square sizing when icon is present but there is no text label
const isIconOnly = $derived(!!icon && !children);
// ── Variant base styles ──────────────────────────────────────────────────────
const variantStyles: Record<ButtonVariant, string> = {
primary: cn(
'bg-swiss-red text-white',
'hover:bg-swiss-red/90',
'active:bg-swiss-red/80',
'border border-swiss-red',
'shadow-[0.125rem_0.125rem_0_0_rgba(0,0,0,0.1)]',
'hover:shadow-[0.1875rem_0.1875rem_0_0_rgba(0,0,0,0.15)]',
'active:shadow-[0.0625rem_0.0625rem_0_0_rgba(0,0,0,0.08)]',
'active:translate-x-[0.0625rem] active:translate-y-[0.0625rem]',
'disabled:bg-neutral-300 dark:disabled:bg-neutral-700',
'disabled:text-neutral-500 dark:disabled:text-neutral-500',
'disabled:border-neutral-300 dark:disabled:border-neutral-700',
'disabled:shadow-none',
'disabled:cursor-not-allowed',
'disabled:transform-none',
),
secondary: cn(
'bg-surface dark:bg-paper',
'text-swiss-black dark:text-neutral-200',
'border border-black/10 dark:border-white/10',
'hover:bg-paper dark:hover:bg-neutral-800',
'hover:shadow-sm',
'active:bg-neutral-100 dark:active:bg-neutral-700',
'disabled:bg-neutral-100 dark:disabled:bg-neutral-800',
'disabled:text-neutral-400 dark:disabled:text-neutral-600',
'disabled:cursor-not-allowed',
),
outline: cn(
'bg-transparent',
'text-swiss-black dark:text-neutral-200',
'border border-black/20 dark:border-white/20',
'hover:bg-surface dark:hover:bg-paper',
'hover:border-brand',
'active:bg-paper dark:active:bg-neutral-700',
'disabled:border-neutral-300 dark:disabled:border-neutral-700',
'disabled:text-neutral-400 dark:disabled:text-neutral-600',
'disabled:cursor-not-allowed',
),
ghost: cn(
'bg-transparent',
'text-neutral-500 dark:text-neutral-400',
'border border-transparent',
'hover:bg-paper dark:hover:bg-paper',
'hover:text-swiss-black dark:hover:text-neutral-200',
'hover:border-black/5 dark:hover:border-white/5',
'active:bg-surface dark:active:bg-neutral-700',
'disabled:text-neutral-400 dark:disabled:text-neutral-600',
'disabled:cursor-not-allowed',
),
icon: cn(
'bg-surface dark:bg-dark-bg',
'text-neutral-500 dark:text-neutral-400',
'border border-transparent',
'hover:bg-paper dark:hover:bg-paper',
'hover:text-brand',
'hover:border-black/5 dark:hover:border-white/10',
'active:bg-paper dark:active:bg-neutral-700',
'disabled:text-neutral-400 dark:disabled:text-neutral-600',
'disabled:cursor-not-allowed',
),
};
// ── Size styles ───────────────────────────────────────────────────────────────
const sizeStyles: Record<ButtonSize, string> = {
xs: 'h-6 px-2 text-[9px] gap-1',
sm: 'h-8 px-3 text-[10px] gap-1.5',
md: 'h-10 px-4 text-[11px] gap-2',
lg: 'h-12 px-6 text-[12px] gap-2',
xl: 'h-14 px-8 text-[13px] gap-2.5',
};
// Square padding for icon-only mode
const iconSizeStyles: Record<ButtonSize, string> = {
xs: 'h-6 w-6 p-1',
sm: 'h-8 w-8 p-1.5',
md: 'h-10 w-10 p-2',
lg: 'h-12 w-12 p-2.5',
xl: 'h-14 w-14 p-3',
};
// ── Active state overrides (per variant) ─────────────────────────────────────
const activeStyles: Partial<Record<ButtonVariant, string>> = {
secondary: 'bg-paper dark:bg-paper shadow-sm border-black/20 dark:border-white/20',
ghost: 'bg-paper dark:bg-paper text-swiss-black dark:text-neutral-200',
outline: 'bg-surface dark:bg-paper border-brand',
icon: 'bg-paper dark:bg-paper text-brand border-black/5 dark:border-white/10',
};
const classes = $derived(cn(
// Base
'inline-flex items-center justify-center',
'font-["Space_Grotesk"] font-bold tracking-tight uppercase',
'rounded-none',
'transition-all duration-200',
'select-none',
'outline-none',
'focus-visible:ring-2 focus-visible:ring-brand focus-visible:ring-offset-2',
'focus-visible:ring-offset-surface dark:focus-visible:ring-offset-dark-bg',
'disabled:cursor-not-allowed disabled:pointer-events-none',
// Variant
variantStyles[variant],
// Size (square when icon-only)
isIconOnly ? iconSizeStyles[size] : sizeStyles[size],
// Animate (CSS tap scale — excluded for primary which uses translate instead)
animate && !disabled && variant !== 'primary' && 'active:scale-[0.97]',
// Active override
active && activeStyles[variant],
// Consumer override
className,
));
</script>
<button
{type}
{disabled}
class={classes}
{...rest}
>
{#if icon && iconPosition === 'left'}
<span class="shrink-0 flex items-center justify-center">
{@render icon()}
</span>
{/if}
{#if children}
<span class="whitespace-nowrap leading-none">
{@render children()}
</span>
{/if}
{#if icon && iconPosition === 'right'}
<span class="shrink-0 flex items-center justify-center">
{@render icon()}
</span>
{/if}
</button>