ClockContext.tsx

Full source

import { c as _c } from "react/compiler-runtime";
import React, { createContext, useEffect, useState } from 'react';
import { FRAME_INTERVAL_MS } from '../constants.js';
import { useTerminalFocus } from '../hooks/use-terminal-focus.js';
export type Clock = {
  subscribe: (onChange: () => void, keepAlive: boolean) => () => void;
  now: () => number;
  setTickInterval: (ms: number) => void;
};
export function createClock(tickIntervalMs: number): Clock {
  const subscribers = new Map<() => void, boolean>();
  let interval: ReturnType<typeof setInterval> | null = null;
  let currentTickIntervalMs = tickIntervalMs;
  let startTime = 0;
  // Snapshot of the current tick's time, ensuring all subscribers in the same
  // tick see the same value (keeps animations synchronized)
  let tickTime = 0;
  function tick(): void {
    tickTime = Date.now() - startTime;
    for (const onChange of subscribers.keys()) {
      onChange();
    }
  }
  function updateInterval(): void {
    const anyKeepAlive = [...subscribers.values()].some(Boolean);
    if (anyKeepAlive) {
      if (interval) {
        clearInterval(interval);
        interval = null;
      }
      if (startTime === 0) {
        startTime = Date.now();
      }
      interval = setInterval(tick, currentTickIntervalMs);
    } else if (interval) {
      clearInterval(interval);
      interval = null;
    }
  }
  return {
    subscribe(onChange, keepAlive) {
      subscribers.set(onChange, keepAlive);
      updateInterval();
      return () => {
        subscribers.delete(onChange);
        updateInterval();
      };
    },
    now() {
      if (startTime === 0) {
        startTime = Date.now();
      }
      // When the clock interval is running, return the synchronized tickTime
      // so all subscribers in the same tick see the same value.
      // When paused (no keepAlive subscribers), return real-time to avoid
      // returning a stale tickTime from the last tick before the pause.
      if (interval && tickTime) {
        return tickTime;
      }
      return Date.now() - startTime;
    },
    setTickInterval(ms) {
      if (ms === currentTickIntervalMs) return;
      currentTickIntervalMs = ms;
      updateInterval();
    }
  };
}
export const ClockContext = createContext<Clock | null>(null);
const BLURRED_TICK_INTERVAL_MS = FRAME_INTERVAL_MS * 2;

// Own component so App.tsx doesn't re-render when the clock is created.
// The clock value is stable (created once via useState), so the provider
// never causes consumer re-renders on its own.
export function ClockProvider(t0) {
  const $ = _c(7);
  const {
    children
  } = t0;
  const [clock] = useState(_temp);
  const focused = useTerminalFocus();
  let t1;
  let t2;
  if ($[0] !== clock || $[1] !== focused) {
    t1 = () => {
      clock.setTickInterval(focused ? FRAME_INTERVAL_MS : BLURRED_TICK_INTERVAL_MS);
    };
    t2 = [clock, focused];
    $[0] = clock;
    $[1] = focused;
    $[2] = t1;
    $[3] = t2;
  } else {
    t1 = $[2];
    t2 = $[3];
  }
  useEffect(t1, t2);
  let t3;
  if ($[4] !== children || $[5] !== clock) {
    t3 = <ClockContext.Provider value={clock}>{children}</ClockContext.Provider>;
    $[4] = children;
    $[5] = clock;
    $[6] = t3;
  } else {
    t3 = $[6];
  }
  return t3;
}
function _temp() {
  return createClock(FRAME_INTERVAL_MS);
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["React","createContext","useEffect","useState","FRAME_INTERVAL_MS","useTerminalFocus","Clock","subscribe","onChange","keepAlive","now","setTickInterval","ms","createClock","tickIntervalMs","subscribers","Map","interval","ReturnType","setInterval","currentTickIntervalMs","startTime","tickTime","tick","Date","keys","updateInterval","anyKeepAlive","values","some","Boolean","clearInterval","set","delete","ClockContext","BLURRED_TICK_INTERVAL_MS","ClockProvider","t0","$","_c","children","clock","_temp","focused","t1","t2","t3"],"sources":["ClockContext.tsx"],"sourcesContent":["import React, { createContext, useEffect, useState } from 'react'\nimport { FRAME_INTERVAL_MS } from '../constants.js'\nimport { useTerminalFocus } from '../hooks/use-terminal-focus.js'\n\nexport type Clock = {\n  subscribe: (onChange: () => void, keepAlive: boolean) => () => void\n  now: () => number\n  setTickInterval: (ms: number) => void\n}\n\nexport function createClock(tickIntervalMs: number): Clock {\n  const subscribers = new Map<() => void, boolean>()\n  let interval: ReturnType<typeof setInterval> | null = null\n  let currentTickIntervalMs = tickIntervalMs\n  let startTime = 0\n  // Snapshot of the current tick's time, ensuring all subscribers in the same\n  // tick see the same value (keeps animations synchronized)\n  let tickTime = 0\n\n  function tick(): void {\n    tickTime = Date.now() - startTime\n    for (const onChange of subscribers.keys()) {\n      onChange()\n    }\n  }\n\n  function updateInterval(): void {\n    const anyKeepAlive = [...subscribers.values()].some(Boolean)\n\n    if (anyKeepAlive) {\n      if (interval) {\n        clearInterval(interval)\n        interval = null\n      }\n      if (startTime === 0) {\n        startTime = Date.now()\n      }\n      interval = setInterval(tick, currentTickIntervalMs)\n    } else if (interval) {\n      clearInterval(interval)\n      interval = null\n    }\n  }\n\n  return {\n    subscribe(onChange, keepAlive) {\n      subscribers.set(onChange, keepAlive)\n      updateInterval()\n      return () => {\n        subscribers.delete(onChange)\n        updateInterval()\n      }\n    },\n\n    now() {\n      if (startTime === 0) {\n        startTime = Date.now()\n      }\n      // When the clock interval is running, return the synchronized tickTime\n      // so all subscribers in the same tick see the same value.\n      // When paused (no keepAlive subscribers), return real-time to avoid\n      // returning a stale tickTime from the last tick before the pause.\n      if (interval && tickTime) {\n        return tickTime\n      }\n      return Date.now() - startTime\n    },\n\n    setTickInterval(ms) {\n      if (ms === currentTickIntervalMs) return\n      currentTickIntervalMs = ms\n      updateInterval()\n    },\n  }\n}\n\nexport const ClockContext = createContext<Clock | null>(null)\n\nconst BLURRED_TICK_INTERVAL_MS = FRAME_INTERVAL_MS * 2\n\n// Own component so App.tsx doesn't re-render when the clock is created.\n// The clock value is stable (created once via useState), so the provider\n// never causes consumer re-renders on its own.\nexport function ClockProvider({\n  children,\n}: {\n  children: React.ReactNode\n}): React.ReactNode {\n  const [clock] = useState(() => createClock(FRAME_INTERVAL_MS))\n  const focused = useTerminalFocus()\n\n  useEffect(() => {\n    clock.setTickInterval(\n      focused ? FRAME_INTERVAL_MS : BLURRED_TICK_INTERVAL_MS,\n    )\n  }, [clock, focused])\n\n  return <ClockContext.Provider value={clock}>{children}</ClockContext.Provider>\n}\n"],"mappings":";AAAA,OAAOA,KAAK,IAAIC,aAAa,EAAEC,SAAS,EAAEC,QAAQ,QAAQ,OAAO;AACjE,SAASC,iBAAiB,QAAQ,iBAAiB;AACnD,SAASC,gBAAgB,QAAQ,gCAAgC;AAEjE,OAAO,KAAKC,KAAK,GAAG;EAClBC,SAAS,EAAE,CAACC,QAAQ,EAAE,GAAG,GAAG,IAAI,EAAEC,SAAS,EAAE,OAAO,EAAE,GAAG,GAAG,GAAG,IAAI;EACnEC,GAAG,EAAE,GAAG,GAAG,MAAM;EACjBC,eAAe,EAAE,CAACC,EAAE,EAAE,MAAM,EAAE,GAAG,IAAI;AACvC,CAAC;AAED,OAAO,SAASC,WAAWA,CAACC,cAAc,EAAE,MAAM,CAAC,EAAER,KAAK,CAAC;EACzD,MAAMS,WAAW,GAAG,IAAIC,GAAG,CAAC,GAAG,GAAG,IAAI,EAAE,OAAO,CAAC,CAAC,CAAC;EAClD,IAAIC,QAAQ,EAAEC,UAAU,CAAC,OAAOC,WAAW,CAAC,GAAG,IAAI,GAAG,IAAI;EAC1D,IAAIC,qBAAqB,GAAGN,cAAc;EAC1C,IAAIO,SAAS,GAAG,CAAC;EACjB;EACA;EACA,IAAIC,QAAQ,GAAG,CAAC;EAEhB,SAASC,IAAIA,CAAA,CAAE,EAAE,IAAI,CAAC;IACpBD,QAAQ,GAAGE,IAAI,CAACd,GAAG,CAAC,CAAC,GAAGW,SAAS;IACjC,KAAK,MAAMb,QAAQ,IAAIO,WAAW,CAACU,IAAI,CAAC,CAAC,EAAE;MACzCjB,QAAQ,CAAC,CAAC;IACZ;EACF;EAEA,SAASkB,cAAcA,CAAA,CAAE,EAAE,IAAI,CAAC;IAC9B,MAAMC,YAAY,GAAG,CAAC,GAAGZ,WAAW,CAACa,MAAM,CAAC,CAAC,CAAC,CAACC,IAAI,CAACC,OAAO,CAAC;IAE5D,IAAIH,YAAY,EAAE;MAChB,IAAIV,QAAQ,EAAE;QACZc,aAAa,CAACd,QAAQ,CAAC;QACvBA,QAAQ,GAAG,IAAI;MACjB;MACA,IAAII,SAAS,KAAK,CAAC,EAAE;QACnBA,SAAS,GAAGG,IAAI,CAACd,GAAG,CAAC,CAAC;MACxB;MACAO,QAAQ,GAAGE,WAAW,CAACI,IAAI,EAAEH,qBAAqB,CAAC;IACrD,CAAC,MAAM,IAAIH,QAAQ,EAAE;MACnBc,aAAa,CAACd,QAAQ,CAAC;MACvBA,QAAQ,GAAG,IAAI;IACjB;EACF;EAEA,OAAO;IACLV,SAASA,CAACC,QAAQ,EAAEC,SAAS,EAAE;MAC7BM,WAAW,CAACiB,GAAG,CAACxB,QAAQ,EAAEC,SAAS,CAAC;MACpCiB,cAAc,CAAC,CAAC;MAChB,OAAO,MAAM;QACXX,WAAW,CAACkB,MAAM,CAACzB,QAAQ,CAAC;QAC5BkB,cAAc,CAAC,CAAC;MAClB,CAAC;IACH,CAAC;IAEDhB,GAAGA,CAAA,EAAG;MACJ,IAAIW,SAAS,KAAK,CAAC,EAAE;QACnBA,SAAS,GAAGG,IAAI,CAACd,GAAG,CAAC,CAAC;MACxB;MACA;MACA;MACA;MACA;MACA,IAAIO,QAAQ,IAAIK,QAAQ,EAAE;QACxB,OAAOA,QAAQ;MACjB;MACA,OAAOE,IAAI,CAACd,GAAG,CAAC,CAAC,GAAGW,SAAS;IAC/B,CAAC;IAEDV,eAAeA,CAACC,EAAE,EAAE;MAClB,IAAIA,EAAE,KAAKQ,qBAAqB,EAAE;MAClCA,qBAAqB,GAAGR,EAAE;MAC1Bc,cAAc,CAAC,CAAC;IAClB;EACF,CAAC;AACH;AAEA,OAAO,MAAMQ,YAAY,GAAGjC,aAAa,CAACK,KAAK,GAAG,IAAI,CAAC,CAAC,IAAI,CAAC;AAE7D,MAAM6B,wBAAwB,GAAG/B,iBAAiB,GAAG,CAAC;;AAEtD;AACA;AACA;AACA,OAAO,SAAAgC,cAAAC,EAAA;EAAA,MAAAC,CAAA,GAAAC,EAAA;EAAuB;IAAAC;EAAA,IAAAH,EAI7B;EACC,OAAAI,KAAA,IAAgBtC,QAAQ,CAACuC,KAAoC,CAAC;EAC9D,MAAAC,OAAA,GAAgBtC,gBAAgB,CAAC,CAAC;EAAA,IAAAuC,EAAA;EAAA,IAAAC,EAAA;EAAA,IAAAP,CAAA,QAAAG,KAAA,IAAAH,CAAA,QAAAK,OAAA;IAExBC,EAAA,GAAAA,CAAA;MACRH,KAAK,CAAA9B,eAAgB,CACnBgC,OAAO,GAAPvC,iBAAsD,GAAtD+B,wBACF,CAAC;IAAA,CACF;IAAEU,EAAA,IAACJ,KAAK,EAAEE,OAAO,CAAC;IAAAL,CAAA,MAAAG,KAAA;IAAAH,CAAA,MAAAK,OAAA;IAAAL,CAAA,MAAAM,EAAA;IAAAN,CAAA,MAAAO,EAAA;EAAA;IAAAD,EAAA,GAAAN,CAAA;IAAAO,EAAA,GAAAP,CAAA;EAAA;EAJnBpC,SAAS,CAAC0C,EAIT,EAAEC,EAAgB,CAAC;EAAA,IAAAC,EAAA;EAAA,IAAAR,CAAA,QAAAE,QAAA,IAAAF,CAAA,QAAAG,KAAA;IAEbK,EAAA,0BAA8BL,KAAK,CAALA,MAAI,CAAC,CAAGD,SAAO,CAAE,wBAAwB;IAAAF,CAAA,MAAAE,QAAA;IAAAF,CAAA,MAAAG,KAAA;IAAAH,CAAA,MAAAQ,EAAA;EAAA;IAAAA,EAAA,GAAAR,CAAA;EAAA;EAAA,OAAvEQ,EAAuE;AAAA;AAdzE,SAAAJ,MAAA;EAAA,OAK0B7B,WAAW,CAACT,iBAAiB,CAAC;AAAA","ignoreList":[]}