@tamagui/react-native-web-lite/dist/esm/InteractionManager/index.mjs

React Native for Web

import { invariant } from "@tamagui/react-native-web-internals";
import EventEmitter from "../vendor/react-native/emitter/_EventEmitter.mjs";
import { TaskQueue } from "./TaskQueue.mjs";
import { requestIdleCallback } from "../modules/requestIdleCallback.mjs";
const _emitter = new EventEmitter();
const InteractionManager = {
  Events: {
    interactionStart: "interactionStart",
    interactionComplete: "interactionComplete"
  },
  /**
   * Schedule a function to run after all interactions have completed.
   */
  runAfterInteractions(task) {
    const tasks = [];
    const promise = new Promise(resolve => {
      _scheduleUpdate();
      if (task) {
        tasks.push(task);
      }
      tasks.push({
        run: resolve,
        name: "resolve " + (task && task.name || "?")
      });
      _taskQueue.enqueueTasks(tasks);
    });
    return {
      then: promise.then.bind(promise),
      done: promise.then.bind(promise),
      cancel: () => {
        _taskQueue.cancelTasks(tasks);
      }
    };
  },
  /**
   * Notify manager that an interaction has started.
   */
  createInteractionHandle() {
    _scheduleUpdate();
    const handle = ++_inc;
    _addInteractionSet.add(handle);
    return handle;
  },
  /**
   * Notify manager that an interaction has completed.
   */
  clearInteractionHandle(handle) {
    invariant(!!handle, "Must provide a handle to clear.");
    _scheduleUpdate();
    _addInteractionSet.delete(handle);
    _deleteInteractionSet.add(handle);
  },
  addListener: _emitter.addListener.bind(_emitter),
  /**
   *
   * @param deadline
   */
  setDeadline(deadline) {
    _deadline = deadline;
  }
};
const _interactionSet = /* @__PURE__ */new Set();
const _addInteractionSet = /* @__PURE__ */new Set();
const _deleteInteractionSet = /* @__PURE__ */new Set();
const _taskQueue = new TaskQueue({
  onMoreTasks: _scheduleUpdate
});
let _nextUpdateHandle = null;
let _inc = 0;
let _deadline = -1;
function _scheduleUpdate() {
  if (!_nextUpdateHandle) {
    if (_deadline > 0) {
      _nextUpdateHandle = setTimeout(_processUpdate);
    } else {
      _nextUpdateHandle = requestIdleCallback(_processUpdate);
    }
  }
}
function _processUpdate() {
  _nextUpdateHandle = null;
  const interactionCount = _interactionSet.size;
  _addInteractionSet.forEach(handle => _interactionSet.add(handle));
  _deleteInteractionSet.forEach(handle => _interactionSet.delete(handle));
  const nextInteractionCount = _interactionSet.size;
  if (interactionCount !== 0 && nextInteractionCount === 0) {
    _emitter.emit(InteractionManager.Events.interactionComplete);
  } else if (interactionCount === 0 && nextInteractionCount !== 0) {
    _emitter.emit(InteractionManager.Events.interactionStart);
  }
  if (nextInteractionCount === 0) {
    const begin = Date.now();
    while (_taskQueue.hasTasksToProcess()) {
      _taskQueue.processNext();
      if (_deadline > 0 && Date.now() - begin >= _deadline) {
        _scheduleUpdate();
        break;
      }
    }
  }
  _addInteractionSet.clear();
  _deleteInteractionSet.clear();
}
export { InteractionManager };
//# sourceMappingURL=index.mjs.map