41 lines
1.3 KiB
TypeScript
41 lines
1.3 KiB
TypeScript
import type Screen from '../Screen/Screen'
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import type { MouseMove } from "../messages";
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import { HOVER_CLASSNAME } from '../messages/rewriter/constants'
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import ListWalker from '../../common/ListWalker'
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export default class MouseMoveManager extends ListWalker<MouseMove> {
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private hoverElements: Array<Element> = []
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constructor(private screen: Screen) {super()}
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private getCursorTargets() {
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return this.screen.getElementsFromInternalPoint(this.current)
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}
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private updateHover(): void {
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const curHoverElements = this.getCursorTargets()
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const diffAdd = curHoverElements.filter(elem => !this.hoverElements.includes(elem))
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const diffRemove = this.hoverElements.filter(elem => !curHoverElements.includes(elem))
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this.hoverElements = curHoverElements
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diffAdd.forEach(elem => {
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elem.classList.add(HOVER_CLASSNAME)
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})
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diffRemove.forEach(elem => {
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elem.classList.remove(HOVER_CLASSNAME)
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})
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}
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reset(): void {
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this.hoverElements.length = 0
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}
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move(t: number) {
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const lastMouseMove = this.moveGetLast(t)
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if (!!lastMouseMove) {
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this.screen.cursor.move(lastMouseMove)
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//window.getComputedStyle(this.screen.getCursorTarget()).cursor === 'pointer' // might nfluence performance though
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this.updateHover()
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}
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}
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}
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