[tinyish] Simplify / skip some work in Shape (#3176)
This PR is a minor cleanup of the Shape component. Here we: - use some dumb memoized info to avoid unnecessary style changes - move the dpr check up out of the shapes themselves, avoiding renders on instance state changes Culled shapes: - move the props setting on the culled shape component to a layout reactor - no longer set the height / width on the culled shape component - no longer update the culled shape component when the shape changes Random: - move the arrow shape defs to the arrow shape util (using that neat API we didn't used to have) ### Change Type <!-- ❗ Please select a 'Scope' label ❗️ --> - [x] `sdk` — Changes the tldraw SDK - [ ] `dotcom` — Changes the tldraw.com web app - [ ] `docs` — Changes to the documentation, examples, or templates. - [ ] `vs code` — Changes to the vscode plugin - [ ] `internal` — Does not affect user-facing stuff <!-- ❗ Please select a 'Type' label ❗️ --> - [ ] `bugfix` — Bug fix - [ ] `feature` — New feature - [x] `improvement` — Improving existing features - [ ] `chore` — Updating dependencies, other boring stuff - [ ] `galaxy brain` — Architectural changes - [ ] `tests` — Changes to any test code - [ ] `tools` — Changes to infrastructure, CI, internal scripts, debugging tools, etc. - [ ] `dunno` — I don't know ### Test Plan 1. Use shapes 2. Use culled shapes ### Release Notes - SDK: minor improvements to the Shape component
This commit is contained in:
Steve Ruiz
GitHub
parent
4e0df0730d
commit
4801b35768
5 changed files with 170 additions and 112 deletions
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@ -332,6 +332,8 @@ input,
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.tl-shape__culled {
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position: relative;
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background-color: var(--color-culled);
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width: 100%;
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height: 100%;
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}
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/* ---------------- Shape Containers ---------------- */
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@ -1,26 +1,27 @@
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import { track, useLayoutReaction, useStateTracking } from '@tldraw/state'
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import { useLayoutReaction, useStateTracking } from '@tldraw/state'
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import { IdOf } from '@tldraw/store'
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import { TLShape, TLShapeId } from '@tldraw/tlschema'
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import * as React from 'react'
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import { memo, useCallback, useLayoutEffect, useRef } from 'react'
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import { ShapeUtil } from '../editor/shapes/ShapeUtil'
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import { useEditor } from '../hooks/useEditor'
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import { useEditorComponents } from '../hooks/useEditorComponents'
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import { Mat } from '../primitives/Mat'
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import { toDomPrecision } from '../primitives/utils'
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import { nearestMultiple } from '../utils/nearestMultiple'
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import { setStyleProperty } from '../utils/dom'
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import { OptionalErrorBoundary } from './ErrorBoundary'
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/*
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This component renders shapes on the canvas. There are two stages: positioning
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and styling the shape's container using CSS, and then rendering the shape's
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JSX using its shape util's render method. Rendering the "inside" of a shape is
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more expensive than positioning it or changing its color, so we use React.memo
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more expensive than positioning it or changing its color, so we use memo
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to wrap the inner shape and only re-render it when the shape's props change.
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The shape also receives props for its index and opacity. The index is used to
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determine the z-index of the shape, and the opacity is used to set the shape's
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opacity based on its own opacity and that of its parent's.
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*/
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export const Shape = track(function Shape({
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export const Shape = memo(function Shape({
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id,
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shape,
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util,
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@ -28,6 +29,7 @@ export const Shape = track(function Shape({
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backgroundIndex,
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opacity,
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isCulled,
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dprMultiple,
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}: {
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id: TLShapeId
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shape: TLShape
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@ -36,56 +38,79 @@ export const Shape = track(function Shape({
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backgroundIndex: number
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opacity: number
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isCulled: boolean
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dprMultiple: number
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}) {
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const editor = useEditor()
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const { ShapeErrorFallback } = useEditorComponents()
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const containerRef = React.useRef<HTMLDivElement>(null)
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const backgroundContainerRef = React.useRef<HTMLDivElement>(null)
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const containerRef = useRef<HTMLDivElement>(null)
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const bgContainerRef = useRef<HTMLDivElement>(null)
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const setProperty = React.useCallback((property: string, value: string) => {
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containerRef.current?.style.setProperty(property, value)
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backgroundContainerRef.current?.style.setProperty(property, value)
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}, [])
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const memoizedStuffRef = useRef({
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transform: '',
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clipPath: 'none',
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width: 0,
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height: 0,
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})
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useLayoutReaction('set shape stuff', () => {
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const shape = editor.getShape(id)
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if (!shape) return // probably the shape was just deleted
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const pageTransform = editor.getShapePageTransform(id)
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const transform = Mat.toCssString(pageTransform)
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setProperty('transform', transform)
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const prev = memoizedStuffRef.current
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const clipPath = editor.getShapeClipPath(id)
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setProperty('clip-path', clipPath ?? 'none')
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// Clip path
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const clipPath = editor.getShapeClipPath(id) ?? 'none'
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if (clipPath !== prev.clipPath) {
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setStyleProperty(containerRef.current, 'clip-path', clipPath)
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setStyleProperty(bgContainerRef.current, 'clip-path', clipPath)
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prev.clipPath = clipPath
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}
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// Page transform
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const transform = Mat.toCssString(editor.getShapePageTransform(id))
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if (transform !== prev.transform) {
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setStyleProperty(containerRef.current, 'transform', transform)
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setStyleProperty(bgContainerRef.current, 'transform', transform)
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prev.transform = transform
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}
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// Width / Height
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// We round the shape width and height up to the nearest multiple of dprMultiple
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// to avoid the browser making miscalculations when applying the transform.
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const bounds = editor.getShapeGeometry(shape).bounds
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const dpr = Math.floor(editor.getInstanceState().devicePixelRatio * 100) / 100
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// dprMultiple is the smallest number we can multiply dpr by to get an integer
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// it's usually 1, 2, or 4 (for e.g. dpr of 2, 2.5 and 2.25 respectively)
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const dprMultiple = nearestMultiple(dpr)
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// We round the shape width and height up to the nearest multiple of dprMultiple to avoid the browser
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// making miscalculations when applying the transform.
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const widthRemainder = bounds.w % dprMultiple
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const width = widthRemainder === 0 ? bounds.w : bounds.w + (dprMultiple - widthRemainder)
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const heightRemainder = bounds.h % dprMultiple
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const width = widthRemainder === 0 ? bounds.w : bounds.w + (dprMultiple - widthRemainder)
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const height = heightRemainder === 0 ? bounds.h : bounds.h + (dprMultiple - heightRemainder)
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setProperty('width', Math.max(width, dprMultiple) + 'px')
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setProperty('height', Math.max(height, dprMultiple) + 'px')
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if (width !== prev.width || height !== prev.height) {
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setStyleProperty(containerRef.current, 'width', Math.max(width, dprMultiple) + 'px')
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setStyleProperty(containerRef.current, 'height', Math.max(height, dprMultiple) + 'px')
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setStyleProperty(bgContainerRef.current, 'width', Math.max(width, dprMultiple) + 'px')
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setStyleProperty(bgContainerRef.current, 'height', Math.max(height, dprMultiple) + 'px')
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prev.width = width
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prev.height = height
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}
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})
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// Set the opacity of the container when the opacity changes
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React.useLayoutEffect(() => {
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setProperty('opacity', opacity + '')
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containerRef.current?.style.setProperty('z-index', index + '')
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backgroundContainerRef.current?.style.setProperty('z-index', backgroundIndex + '')
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}, [opacity, index, backgroundIndex, setProperty])
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// This stuff changes pretty infrequently, so we can change them together
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useLayoutEffect(() => {
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const container = containerRef.current
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const bgContainer = bgContainerRef.current
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const annotateError = React.useCallback(
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(error: any) => {
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editor.annotateError(error, { origin: 'react.shape', willCrashApp: false })
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},
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// Opacity
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setStyleProperty(container, 'opacity', opacity)
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setStyleProperty(bgContainer, 'opacity', opacity)
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// Z-Index
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setStyleProperty(container, 'z-index', index)
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setStyleProperty(bgContainer, 'z-index', backgroundIndex)
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}, [opacity, index, backgroundIndex])
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const annotateError = useCallback(
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(error: any) => editor.annotateError(error, { origin: 'shape', willCrashApp: false }),
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[editor]
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)
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@ -95,12 +120,12 @@ export const Shape = track(function Shape({
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<>
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{util.backgroundComponent && (
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<div
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ref={backgroundContainerRef}
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ref={bgContainerRef}
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className="tl-shape tl-shape-background"
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data-shape-type={shape.type}
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draggable={false}
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>
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{!isCulled && (
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{isCulled ? null : (
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<OptionalErrorBoundary fallback={ShapeErrorFallback} onError={annotateError}>
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<InnerShapeBackground shape={shape} util={util} />
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</OptionalErrorBoundary>
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@ -109,7 +134,7 @@ export const Shape = track(function Shape({
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)}
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<div ref={containerRef} className="tl-shape" data-shape-type={shape.type} draggable={false}>
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{isCulled ? (
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<CulledShape shape={shape} />
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<CulledShape shapeId={shape.id} />
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) : (
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<OptionalErrorBoundary fallback={ShapeErrorFallback as any} onError={annotateError}>
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<InnerShape shape={shape} util={util} />
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@ -120,17 +145,14 @@ export const Shape = track(function Shape({
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)
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})
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const InnerShape = React.memo(
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const InnerShape = memo(
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function InnerShape<T extends TLShape>({ shape, util }: { shape: T; util: ShapeUtil<T> }) {
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return useStateTracking('InnerShape:' + shape.type, () => util.component(shape))
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},
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(prev, next) =>
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prev.shape.props === next.shape.props &&
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prev.shape.meta === next.shape.meta &&
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prev.util === next.util
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(prev, next) => prev.shape.props === next.shape.props && prev.shape.meta === next.shape.meta
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)
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const InnerShapeBackground = React.memo(
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const InnerShapeBackground = memo(
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function InnerShapeBackground<T extends TLShape>({
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shape,
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util,
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@ -143,23 +165,18 @@ const InnerShapeBackground = React.memo(
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(prev, next) => prev.shape.props === next.shape.props && prev.shape.meta === next.shape.meta
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)
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const CulledShape = React.memo(
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function CulledShape<T extends TLShape>({ shape }: { shape: T }) {
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const CulledShape = function CulledShape<T extends TLShape>({ shapeId }: { shapeId: IdOf<T> }) {
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const editor = useEditor()
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const bounds = editor.getShapeGeometry(shape).bounds
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const culledRef = useRef<HTMLDivElement>(null)
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return (
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<div
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className="tl-shape__culled"
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style={{
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transform: `translate(${toDomPrecision(bounds.minX)}px, ${toDomPrecision(
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bounds.minY
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)}px)`,
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width: Math.max(1, toDomPrecision(bounds.width)),
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height: Math.max(1, toDomPrecision(bounds.height)),
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}}
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/>
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)
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},
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() => true
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useLayoutReaction('set shape stuff', () => {
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const bounds = editor.getShapeGeometry(shapeId).bounds
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setStyleProperty(
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culledRef.current,
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'transform',
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`translate(${toDomPrecision(bounds.minX)}px, ${toDomPrecision(bounds.minY)}px)`
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)
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})
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return <div ref={culledRef} className="tl-shape__culled" />
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}
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@ -1,8 +1,8 @@
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import { react, track, useLayoutReaction, useValue } from '@tldraw/state'
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import { react, useLayoutReaction, useValue } from '@tldraw/state'
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import { TLHandle, TLShapeId } from '@tldraw/tlschema'
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import { dedupe, modulate, objectMapValues } from '@tldraw/utils'
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import classNames from 'classnames'
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import React from 'react'
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import { Fragment, JSX, useEffect, useRef, useState } from 'react'
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import { COARSE_HANDLE_RADIUS, HANDLE_RADIUS } from '../../constants'
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import { useCanvasEvents } from '../../hooks/useCanvasEvents'
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import { useCoarsePointer } from '../../hooks/useCoarsePointer'
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@ -17,6 +17,8 @@ import { Mat } from '../../primitives/Mat'
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import { Vec } from '../../primitives/Vec'
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import { toDomPrecision } from '../../primitives/utils'
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import { debugFlags } from '../../utils/debug-flags'
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import { setStyleProperty } from '../../utils/dom'
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import { nearestMultiple } from '../../utils/nearestMultiple'
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import { GeometryDebuggingView } from '../GeometryDebuggingView'
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import { LiveCollaborators } from '../LiveCollaborators'
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import { Shape } from '../Shape'
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@ -30,9 +32,9 @@ export function DefaultCanvas({ className }: TLCanvasComponentProps) {
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const { Background, SvgDefs } = useEditorComponents()
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const rCanvas = React.useRef<HTMLDivElement>(null)
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const rHtmlLayer = React.useRef<HTMLDivElement>(null)
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const rHtmlLayer2 = React.useRef<HTMLDivElement>(null)
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const rCanvas = useRef<HTMLDivElement>(null)
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const rHtmlLayer = useRef<HTMLDivElement>(null)
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const rHtmlLayer2 = useRef<HTMLDivElement>(null)
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useScreenBounds(rCanvas)
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useDocumentEvents()
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@ -42,11 +44,6 @@ export function DefaultCanvas({ className }: TLCanvasComponentProps) {
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useFixSafariDoubleTapZoomPencilEvents(rCanvas)
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useLayoutReaction('position layers', () => {
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const htmlElm = rHtmlLayer.current
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if (!htmlElm) return
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const htmlElm2 = rHtmlLayer2.current
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if (!htmlElm2) return
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const { x, y, z } = editor.getCamera()
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// Because the html container has a width/height of 1px, we
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@ -58,8 +55,8 @@ export function DefaultCanvas({ className }: TLCanvasComponentProps) {
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const transform = `scale(${toDomPrecision(z)}) translate(${toDomPrecision(
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x + offset
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)}px,${toDomPrecision(y + offset)}px)`
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htmlElm.style.setProperty('transform', transform)
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htmlElm2.style.setProperty('transform', transform)
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setStyleProperty(rHtmlLayer.current, 'transform', transform)
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setStyleProperty(rHtmlLayer2.current, 'transform', transform)
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})
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const events = useCanvasEvents()
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@ -67,7 +64,7 @@ export function DefaultCanvas({ className }: TLCanvasComponentProps) {
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const shapeSvgDefs = useValue(
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'shapeSvgDefs',
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() => {
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const shapeSvgDefsByKey = new Map<string, React.JSX.Element>()
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const shapeSvgDefsByKey = new Map<string, JSX.Element>()
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for (const util of objectMapValues(editor.shapeUtils)) {
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if (!util) return
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const defs = util.getCanvasSvgDefs()
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@ -98,10 +95,8 @@ export function DefaultCanvas({ className }: TLCanvasComponentProps) {
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<svg className="tl-svg-context">
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<defs>
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{shapeSvgDefs}
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{Cursor && <Cursor />}
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<CollaboratorHint />
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<ArrowheadDot />
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<ArrowheadCross />
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<CursorDef />
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<CollaboratorHintDef />
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{SvgDefs && <SvgDefs />}
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</defs>
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</svg>
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@ -330,13 +325,22 @@ function ShapesWithSVGs() {
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const renderingShapes = useValue('rendering shapes', () => editor.getRenderingShapes(), [editor])
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const dprMultiple = useValue(
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'dpr multiple',
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() =>
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// dprMultiple is the smallest number we can multiply dpr by to get an integer
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// it's usually 1, 2, or 4 (for e.g. dpr of 2, 2.5 and 2.25 respectively)
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nearestMultiple(Math.floor(editor.getInstanceState().devicePixelRatio * 100) / 100),
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[editor]
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)
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return (
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<>
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{renderingShapes.map((result) => (
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<React.Fragment key={result.id + '_fragment'}>
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<Shape {...result} />
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<Fragment key={result.id + '_fragment'}>
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<Shape {...result} dprMultiple={dprMultiple} />
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<DebugSvgCopy id={result.id} />
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</React.Fragment>
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</Fragment>
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))}
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</>
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)
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@ -347,10 +351,19 @@ function ShapesToDisplay() {
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const renderingShapes = useValue('rendering shapes', () => editor.getRenderingShapes(), [editor])
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const dprMultiple = useValue(
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'dpr multiple',
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() =>
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// dprMultiple is the smallest number we can multiply dpr by to get an integer
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// it's usually 1, 2, or 4 (for e.g. dpr of 2, 2.5 and 2.25 respectively)
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nearestMultiple(Math.floor(editor.getInstanceState().devicePixelRatio * 100) / 100),
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[editor]
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)
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return (
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<>
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{renderingShapes.map((result) => (
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<Shape key={result.id + '_shape'} {...result} />
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<Shape key={result.id + '_shape'} {...result} dprMultiple={dprMultiple} />
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))}
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</>
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)
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@ -420,11 +433,11 @@ const HoveredShapeIndicator = function HoveredShapeIndicator() {
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return <HoveredShapeIndicator shapeId={hoveredShapeId} />
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}
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const HintedShapeIndicator = track(function HintedShapeIndicator() {
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function HintedShapeIndicator() {
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const editor = useEditor()
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const { ShapeIndicator } = useEditorComponents()
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const ids = dedupe(editor.getHintingShapeIds())
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const ids = useValue('hinting shape ids', () => dedupe(editor.getHintingShapeIds()), [editor])
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if (!ids.length) return null
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if (!ShapeIndicator) return null
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@ -436,9 +449,9 @@ const HintedShapeIndicator = track(function HintedShapeIndicator() {
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))}
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</>
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)
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})
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}
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function Cursor() {
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function CursorDef() {
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return (
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<g id="cursor">
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<g fill="rgba(0,0,0,.2)" transform="translate(-11,-11)">
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@ -457,36 +470,25 @@ function Cursor() {
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)
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}
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function CollaboratorHint() {
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function CollaboratorHintDef() {
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return <path id="cursor_hint" fill="currentColor" d="M -2,-5 2,0 -2,5 Z" />
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}
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function ArrowheadDot() {
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return (
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<marker id="arrowhead-dot" className="tl-arrow-hint" refX="3.0" refY="3.0" orient="0">
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<circle cx="3" cy="3" r="2" strokeDasharray="100%" />
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</marker>
|
||||
)
|
||||
}
|
||||
|
||||
function ArrowheadCross() {
|
||||
return (
|
||||
<marker id="arrowhead-cross" className="tl-arrow-hint" refX="3.0" refY="3.0" orient="auto">
|
||||
<line x1="1.5" y1="1.5" x2="4.5" y2="4.5" strokeDasharray="100%" />
|
||||
<line x1="1.5" y1="4.5" x2="4.5" y2="1.5" strokeDasharray="100%" />
|
||||
</marker>
|
||||
)
|
||||
}
|
||||
|
||||
const DebugSvgCopy = track(function DupSvg({ id }: { id: TLShapeId }) {
|
||||
function DebugSvgCopy({ id }: { id: TLShapeId }) {
|
||||
const editor = useEditor()
|
||||
|
||||
const [html, setHtml] = useState('')
|
||||
|
||||
const isInRoot = useValue(
|
||||
'is in root',
|
||||
() => {
|
||||
const shape = editor.getShape(id)
|
||||
return shape?.parentId === editor.getCurrentPageId()
|
||||
},
|
||||
[editor, id]
|
||||
)
|
||||
|
||||
const [html, setHtml] = React.useState('')
|
||||
|
||||
const isInRoot = shape?.parentId === editor.getCurrentPageId()
|
||||
|
||||
React.useEffect(() => {
|
||||
useEffect(() => {
|
||||
if (!isInRoot) return
|
||||
|
||||
let latest = null
|
||||
|
|
@ -520,7 +522,7 @@ const DebugSvgCopy = track(function DupSvg({ id }: { id: TLShapeId }) {
|
|||
<div style={{ display: 'flex' }} dangerouslySetInnerHTML={{ __html: html }} />
|
||||
</div>
|
||||
)
|
||||
})
|
||||
}
|
||||
|
||||
function SelectionForegroundWrapper() {
|
||||
const editor = useEditor()
|
||||
|
|
|
|||
|
|
@ -80,3 +80,13 @@ export function releasePointerCapture(
|
|||
|
||||
/** @public */
|
||||
export const stopEventPropagation = (e: any) => e.stopPropagation()
|
||||
|
||||
/** @internal */
|
||||
export const setStyleProperty = (
|
||||
elm: HTMLElement | null,
|
||||
property: string,
|
||||
value: string | number
|
||||
) => {
|
||||
if (!elm) return
|
||||
elm.style.setProperty(property, value as string)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1014,7 +1014,17 @@ export class ArrowShapeUtil extends ShapeUtil<TLArrowShape> {
|
|||
}
|
||||
|
||||
override getCanvasSvgDefs(): TLShapeUtilCanvasSvgDef[] {
|
||||
return [getFillDefForCanvas()]
|
||||
return [
|
||||
getFillDefForCanvas(),
|
||||
{
|
||||
key: `arrow:dot`,
|
||||
component: ArrowheadDotDef,
|
||||
},
|
||||
{
|
||||
key: `arrow:cross`,
|
||||
component: ArrowheadCrossDef,
|
||||
},
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1082,3 +1092,20 @@ const shapeAtTranslationStart = new WeakMap<
|
|||
>
|
||||
}
|
||||
>()
|
||||
|
||||
function ArrowheadDotDef() {
|
||||
return (
|
||||
<marker id="arrowhead-dot" className="tl-arrow-hint" refX="3.0" refY="3.0" orient="0">
|
||||
<circle cx="3" cy="3" r="2" strokeDasharray="100%" />
|
||||
</marker>
|
||||
)
|
||||
}
|
||||
|
||||
function ArrowheadCrossDef() {
|
||||
return (
|
||||
<marker id="arrowhead-cross" className="tl-arrow-hint" refX="3.0" refY="3.0" orient="auto">
|
||||
<line x1="1.5" y1="1.5" x2="4.5" y2="4.5" strokeDasharray="100%" />
|
||||
<line x1="1.5" y1="4.5" x2="4.5" y2="1.5" strokeDasharray="100%" />
|
||||
</marker>
|
||||
)
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue