{
  "version": 3,
  "sources": ["../../../../../src/lib/editor/managers/TickManager/TickManager.ts"],
  "sourcesContent": ["import { throttleToNextFrame as _throttleToNextFrame, bind } from '@tldraw/utils'\nimport type { Editor } from '../../Editor'\n\nconst throttleToNextFrame =\n\ttypeof process !== 'undefined' && process.env.NODE_ENV === 'test'\n\t\t? // At test time we should use actual raf and not throttle, because throttle was set up to evaluate immediately during tests, which causes stack overflow\n\t\t\t// for the tick manager since it sets up a raf loop.\n\t\t\tfunction mockThrottle(cb: any) {\n\t\t\t\t// eslint-disable-next-line no-restricted-globals\n\t\t\t\tconst frame = requestAnimationFrame(cb)\n\t\t\t\treturn () => cancelAnimationFrame(frame)\n\t\t\t}\n\t\t: _throttleToNextFrame\n\n/** @internal */\nexport class TickManager {\n\tconstructor(public editor: Editor) {\n\t\tthis.editor.disposables.add(this.dispose)\n\t\tthis.start()\n\t}\n\n\tcancelRaf?: null | (() => void)\n\tisPaused = true\n\tnow = 0\n\n\tstart() {\n\t\tthis.isPaused = false\n\t\tthis.cancelRaf?.()\n\t\tthis.cancelRaf = throttleToNextFrame(this.tick)\n\t\tthis.now = Date.now()\n\t}\n\n\t@bind\n\ttick() {\n\t\tif (this.isPaused) {\n\t\t\treturn\n\t\t}\n\n\t\tconst now = Date.now()\n\t\tconst elapsed = now - this.now\n\t\tthis.now = now\n\n\t\tthis.editor.inputs.updatePointerVelocity(elapsed)\n\t\tthis.editor.emit('frame', elapsed)\n\t\tthis.editor.emit('tick', elapsed)\n\t\tthis.cancelRaf = throttleToNextFrame(this.tick)\n\t}\n\n\t// Clear the listener\n\t@bind\n\tdispose() {\n\t\tthis.isPaused = true\n\n\t\tthis.cancelRaf?.()\n\t}\n}\n"],
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