35b5ad7d9b
* migrate selection types * extract selection event into selections.ts * move code-mirror selection functions into selections.ts * move more selection logit out of code mirror and engine connection * add selection functions pure * tidy up naming * write a novel about how selections work * final comments
61 lines
2.0 KiB
TypeScript
61 lines
2.0 KiB
TypeScript
import { Selections } from 'lib/selections'
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import { Program, PathToNode } from './wasm'
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import { getNodeFromPath } from './queryAst'
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import { ArtifactMap } from './std/engineConnection'
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import { isOverlap } from 'lib/utils'
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export function pathMapToSelections(
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ast: Program,
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prevSelections: Selections,
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pathToNodeMap: { [key: number]: PathToNode }
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): Selections {
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const newSelections: Selections = {
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...prevSelections,
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codeBasedSelections: [],
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}
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Object.entries(pathToNodeMap).forEach(([index, path]) => {
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const node = getNodeFromPath(ast, path).node as any
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const type = prevSelections.codeBasedSelections[Number(index)].type
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if (node) {
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newSelections.codeBasedSelections.push({
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range: [node.start, node.end],
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type: type || 'default',
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})
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}
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})
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return newSelections
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}
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export function isReducedMotion(): boolean {
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return (
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typeof window !== 'undefined' &&
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window.matchMedia &&
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// TODO/Note I (Kurt) think '(prefers-reduced-motion: reduce)' and '(prefers-reduced-motion)' are equivalent, but not 100% sure
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window.matchMedia('(prefers-reduced-motion)').matches
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)
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}
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export function isCursorInSketchCommandRange(
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artifactMap: ArtifactMap,
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selectionRanges: Selections
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): string | false {
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const overlapingEntries: [string, ArtifactMap[string]][] = Object.entries(
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artifactMap
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).filter(([id, artifact]: [string, ArtifactMap[string]]) =>
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selectionRanges.codeBasedSelections.some(
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(selection) =>
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Array.isArray(selection?.range) &&
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Array.isArray(artifact?.range) &&
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isOverlap(selection.range, artifact.range) &&
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(artifact.commandType === 'start_path' ||
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artifact.commandType === 'extend_path' ||
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artifact.commandType === 'close_path')
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)
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)
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return overlapingEntries.length && overlapingEntries[0][1].parentId
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? overlapingEntries[0][1].parentId
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: overlapingEntries.find(
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([, artifact]) => artifact.commandType === 'start_path'
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)?.[0] || false
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}
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