Tldraw/packages/core/src/hooks/useStyle.tsx

426 wiersze
9.1 KiB
TypeScript

import * as React from 'react'
import type { TLTheme } from '~types'
const styles = new Map<string, HTMLStyleElement>()
type AnyTheme = Record<string, string>
function makeCssTheme<T = AnyTheme>(prefix: string, theme: T) {
return Object.keys(theme).reduce((acc, key) => {
const value = theme[key as keyof T]
if (value) {
return acc + `${`--${prefix}-${key}`}: ${value};\n`
}
return acc
}, '')
}
function useTheme<T = AnyTheme>(prefix: string, theme: T, selector = ':root') {
React.useLayoutEffect(() => {
const style = document.createElement('style')
const cssTheme = makeCssTheme(prefix, theme)
style.setAttribute('id', `${prefix}-theme`)
style.setAttribute('data-selector', selector)
style.innerHTML = `
${selector} {
${cssTheme}
}
`
document.head.appendChild(style)
return () => {
if (style && document.head.contains(style)) {
document.head.removeChild(style)
}
}
}, [prefix, theme, selector])
}
function useStyle(uid: string, rules: string) {
React.useLayoutEffect(() => {
if (styles.get(uid)) {
return () => void null
}
const style = document.createElement('style')
style.innerHTML = rules
style.setAttribute('id', uid)
document.head.appendChild(style)
styles.set(uid, style)
return () => {
if (style && document.head.contains(style)) {
document.head.removeChild(style)
styles.delete(uid)
}
}
}, [uid, rules])
}
const css = (strings: TemplateStringsArray, ...args: unknown[]) =>
strings.reduce(
(acc, string, index) => acc + string + (index < args.length ? args[index] : ''),
''
)
const defaultTheme: TLTheme = {
accent: 'rgb(255, 0, 0)',
brushFill: 'rgba(0,0,0,.05)',
brushStroke: 'rgba(0,0,0,.25)',
selectStroke: 'rgb(66, 133, 244)',
selectFill: 'rgba(65, 132, 244, 0.05)',
background: 'rgb(248, 249, 250)',
foreground: 'rgb(51, 51, 51)',
grid: 'rgba(144, 144, 144, 1)',
}
const tlcss = css`
@font-face {
font-family: 'Recursive';
font-style: normal;
font-weight: 500;
font-display: swap;
src: url(https://fonts.gstatic.com/s/recursive/v23/8vI-7wMr0mhh-RQChyHEH06TlXhq_gukbYrFMk1QuAIcyEwG_X-dpEfaE5YaERmK-CImKsvxvU-MXGX2fSqasNfUlTGZnI14ZeY.woff2)
format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
font-family: 'Recursive';
font-style: normal;
font-weight: 700;
font-display: swap;
src: url(https://fonts.gstatic.com/s/recursive/v23/8vI-7wMr0mhh-RQChyHEH06TlXhq_gukbYrFMk1QuAIcyEwG_X-dpEfaE5YaERmK-CImKsvxvU-MXGX2fSqasNfUlTGZnI14ZeY.woff2)
format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
font-family: 'Recursive Mono';
font-style: normal;
font-weight: 420;
font-display: swap;
src: url(https://fonts.gstatic.com/s/recursive/v23/8vI-7wMr0mhh-RQChyHEH06TlXhq_gukbYrFMk1QuAIcyEwG_X-dpEfaE5YaERmK-CImqvTxvU-MXGX2fSqasNfUlTGZnI14ZeY.woff2)
format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
.tl-container {
--tl-zoom: 1;
--tl-scale: calc(1 / var(--tl-zoom));
--tl-padding: calc(64px * max(1, var(--tl-scale)));
position: relative;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
max-width: 100%;
max-height: 100%;
box-sizing: border-box;
padding: 0px;
margin: 0px;
z-index: 100;
overflow: hidden;
touch-action: none;
overscroll-behavior: none;
background-color: var(--tl-background);
}
.tl-container * {
box-sizing: border-box;
}
.tl-overlay {
position: absolute;
width: 100%;
height: 100%;
touch-action: none;
pointer-events: none;
}
.tl-grid {
position: absolute;
width: 100%;
height: 100%;
touch-action: none;
pointer-events: none;
user-select: none;
}
.tl-snap-line {
stroke: var(--tl-accent);
stroke-width: calc(1px * var(--tl-scale));
}
.tl-snap-point {
stroke: var(--tl-accent);
stroke-width: calc(1px * var(--tl-scale));
}
.tl-canvas {
position: absolute;
width: 100%;
height: 100%;
touch-action: none;
pointer-events: all;
overflow: clip;
}
.tl-layer {
position: absolute;
top: 0px;
left: 0px;
height: 0px;
width: 0px;
contain: layout style size;
}
.tl-absolute {
position: absolute;
top: 0px;
left: 0px;
transform-origin: center center;
contain: layout style size;
}
.tl-positioned {
position: absolute;
top: 0px;
left: 0px;
transform-origin: center center;
pointer-events: none;
display: flex;
align-items: center;
justify-content: center;
overflow: hidden;
contain: layout style size;
}
.tl-positioned-svg {
width: 100%;
height: 100%;
overflow: hidden;
contain: layout style size;
}
.tl-positioned-div {
position: relative;
width: 100%;
height: 100%;
overflow: hidden;
padding: var(--tl-padding);
overflow: hidden;
contain: layout style size;
}
.tl-counter-scaled {
transform: scale(var(--tl-scale));
}
.tl-dashed {
stroke-dasharray: calc(2px * var(--tl-scale)), calc(2px * var(--tl-scale));
}
.tl-transparent {
fill: transparent;
stroke: transparent;
}
.tl-cursor-ns {
cursor: ns-resize;
}
.tl-cursor-ew {
cursor: ew-resize;
}
.tl-cursor-nesw {
cursor: nesw-resize;
}
.tl-cursor-nwse {
cursor: nwse-resize;
}
.tl-corner-handle {
stroke: var(--tl-selectStroke);
fill: var(--tl-background);
stroke-width: calc(1.5px * var(--tl-scale));
}
.tl-rotate-handle {
stroke: var(--tl-selectStroke);
fill: var(--tl-background);
stroke-width: calc(1.5px * var(--tl-scale));
cursor: grab;
}
.tl-binding {
fill: var(--tl-selectFill);
stroke: var(--tl-selectStroke);
stroke-width: calc(1px * var(--tl-scale));
pointer-events: none;
}
.tl-user {
left: -4px;
top: -4px;
height: 8px;
width: 8px;
border-radius: 100%;
pointer-events: none;
}
.tl-indicator {
fill: transparent;
stroke-width: calc(1.5px * var(--tl-scale));
pointer-events: none;
}
.tl-user-indicator-bounds {
border-style: solid;
border-width: calc(1px * var(--tl-scale));
}
.tl-selected {
stroke: var(--tl-selectStroke);
}
.tl-hovered {
stroke: var(--tl-selectStroke);
}
.tl-clone-target {
pointer-events: all;
}
.tl-clone-target:hover .tl-clone-button {
opacity: 1;
}
.tl-clone-button-target {
cursor: pointer;
pointer-events: all;
}
.tl-clone-button-target:hover .tl-clone-button {
fill: var(--tl-selectStroke);
}
.tl-clone-button {
opacity: 0;
r: calc(8px * var(--tl-scale));
stroke-width: calc(1.5px * var(--tl-scale));
stroke: var(--tl-selectStroke);
fill: var(--tl-background);
}
.tl-bounds {
pointer-events: none;
contain: layout style size;
}
.tl-bounds-bg {
stroke: none;
fill: var(--tl-selectFill);
pointer-events: all;
contain: layout style size;
}
.tl-bounds-center {
fill: transparent;
stroke: var(--tl-selectStroke);
stroke-width: calc(1.5px * var(--tl-scale));
}
.tl-brush {
fill: var(--tl-brushFill);
stroke: var(--tl-brushStroke);
stroke-width: calc(1px * var(--tl-scale));
pointer-events: none;
contain: layout style size;
}
.tl-dot {
fill: var(--tl-background);
stroke: var(--tl-foreground);
stroke-width: 2px;
}
.tl-handle {
pointer-events: all;
}
.tl-handle:hover .tl-handle-bg {
fill: var(--tl-selectFill);
}
.tl-handle:hover .tl-handle-bg > * {
stroke: var(--tl-selectFill);
}
.tl-handle:active .tl-handle-bg {
fill: var(--tl-selectFill);
}
.tl-handle:active .tl-handle-bg > * {
stroke: var(--tl-selectFill);
}
.tl-handle {
fill: var(--tl-background);
stroke: var(--tl-selectStroke);
stroke-width: 1.5px;
}
.tl-handle-bg {
fill: transparent;
stroke: none;
pointer-events: all;
r: calc(16px / max(1, var(--tl-zoom)));
}
.tl-binding-indicator {
stroke-width: calc(3px * var(--tl-scale));
fill: var(--tl-selectFill);
stroke: var(--tl-selected);
}
.tl-centered-g {
transform: translate(var(--tl-padding), var(--tl-padding));
}
.tl-current-parent > *[data-shy='true'] {
opacity: 1;
}
.tl-binding {
fill: none;
stroke: var(--tl-selectStroke);
stroke-width: calc(2px * var(--tl-scale));
}
.tl-grid-dot {
fill: var(--tl-grid);
}
`
export function useTLTheme(theme?: Partial<TLTheme>, selector?: string) {
const tltheme = React.useMemo<TLTheme>(
() => ({
...defaultTheme,
...theme,
}),
[theme]
)
useTheme('tl', tltheme, selector)
useStyle('tl-canvas', tlcss)
}