TypeScript underscore.throttle函数代码示例

  constructor(name: string, redux: AppRedux) {
    // important: run init in any case in order to run @load_url_target,
    // but do not actually create a session if @name is '' or null/undefined
    this.load_url_target = this.load_url_target.bind(this);
    this.init_local_storage = this.init_local_storage.bind(this);
    this.save = this.save.bind(this);
    this.close_project = this.close_project.bind(this);
    this._save_to_local_storage = this._save_to_local_storage.bind(this);
    this._save_to_local_storage_closed = this._save_to_local_storage_closed.bind(
      this
    );
    this.restore = this.restore.bind(this);
    this._restore_project = this._restore_project.bind(this);
    this._restore_all = this._restore_all.bind(this);
    this._load_from_local_storage = this._load_from_local_storage.bind(this);

    // init attributes
    this.name = name;
    this.redux = redux;

    // actual initialization
    if (webapp_client.is_signed_in()) {
      this.init_local_storage();
    } else {
      webapp_client.once("signed_in", () => {
        return this.init_local_storage();
      });
    }
    if (this.name) {
      this.save = throttle(this.save, 1000);
    }
  }

    link: function link(scope) {
      function clickHandler() {
        dimActivityTrackerService.track();
      }

      function visibilityHandler() {
        if ($document[0].hidden === false) {
          dimActivityTrackerService.track();
          refreshAccountData();
        }
      }

      $document.on('click', clickHandler);
      $document.on('visibilitychange', visibilityHandler);
      $document.on('online', refreshAccountData);

      const ONE_MINUTE = 60 * 1000;
      const FIVE_MINUTES = 5 * 60 * 1000;
      const ONE_HOUR = 60 * 60 * 1000;

      const refresh = _.throttle(() => {
        // Individual pages should listen to this event and decide what to refresh,
        // and their services should decide how to cache/dedup refreshes.
        // This event should *NOT* be listened to by services!
        // TODO: replace this with an observable?
        $rootScope.$broadcast('dim-refresh');
      }, ONE_MINUTE, { trailing: false });

      const activeWithinLastHour = dimActivityTrackerService.activeWithinTimespan
        .bind(dimActivityTrackerService, ONE_HOUR);

      function refreshAccountData() {
        const dimHasNoActivePromises = !loadingTracker.active();
        const userWasActiveInTheLastHour = activeWithinLastHour();
        const isDimVisible = !$document.hidden;
        const isOnline = navigator.onLine;

        if (dimHasNoActivePromises && userWasActiveInTheLastHour && isDimVisible && isOnline) {
          refresh();
        }
      }

      let refreshAccountDataInterval = $timeout(refreshAccountData, FIVE_MINUTES);

      scope.$on('$destroy', () => {
        $document.off('click', clickHandler);
        $document.off('visibilitychange', visibilityHandler);
        $document.off('online', refreshAccountData);
        $timeout.cancel(refreshAccountDataInterval);
      });

      // Every time we refresh for any reason, reset the timer
      scope.$on('dim-refresh', () => {
        $timeout.cancel(refreshAccountDataInterval);
        refreshAccountDataInterval = $timeout(refreshAccountData, FIVE_MINUTES);
      });
    }

  async function init_term() {
    const args: string[] = [];

    if (options.args != null) {
      for (let arg of options.args) {
        if (typeof arg === "string") {
          args.push(arg);
        }
      }
    } else {
      const init_filename: string = console_init_filename(path);
      if (await exists(init_filename)) {
        args.push("--init-file");
        args.push(path_split(init_filename).tail);
      }
    }

    const s = path_split(path);
    const env = merge({ COCALC_TERMINAL_FILENAME: s.tail }, process.env);
    if (options.env != null) {
      merge(env, options.env);
    }

    const command = options.command ? options.command : "/bin/bash";
    const cwd = s.head;

    try {
      terminals[name].history = (await callback(readFile, path)).toString();
    } catch (err) {
      console.log(`failed to load ${path} from disk`);
    }
    const term = spawn(command, args, { cwd, env });
    logger.debug("terminal", "init_term", name, "pid=", term.pid, "args", args);
    terminals[name].term = term;

    const save_history_to_disk = throttle(async () => {
      try {
        await callback(writeFile, path, terminals[name].history);
      } catch (err) {
        console.log(`failed to save ${path} to disk`);
      }
    }, 15000);

    term.on("data", function(data): void {
      //logger.debug("terminal: term --> browsers", name, data);
      handle_backend_messages(data);
      terminals[name].history += data;
      save_history_to_disk();
      const n = terminals[name].history.length;
      if (n >= MAX_HISTORY_LENGTH) {
        logger.debug("terminal data -- truncating");
        terminals[name].history = terminals[name].history.slice(
          n - MAX_HISTORY_LENGTH / 2
        );
        const last = terminals[name].last_truncate_time;
        const now = new Date().valueOf();
        terminals[name].last_truncate_time = now;
        logger.debug("terminal", now, last, now - last, truncate_thresh_ms);
        if (now - last <= truncate_thresh_ms) {
          // getting a huge amount of data quickly.
          if (!terminals[name].truncating) {
            channel.write({ cmd: "burst" });
          }
          terminals[name].truncating += data.length;
          setTimeout(check_if_still_truncating, check_interval_ms);
          if (terminals[name].truncating >= 5 * MAX_HISTORY_LENGTH) {
            // only start sending control+c if output has been completely stuck
            // being truncated several times in a row -- it has to be a serious non-stop burst...
            term.write("\u0003");
          }
          return;
        } else {
          terminals[name].truncating = 0;
        }
      }
      if (!terminals[name].truncating) {
        channel.write(data);
      }
    });

    let backend_messages_state: "NONE" | "READING" = "NONE";
    let backend_messages_buffer: string = "";
    function reset_backend_messages_buffer(): void {
      backend_messages_buffer = "";
      backend_messages_state = "NONE";
    }
    function handle_backend_messages(data: string): void {
      /* parse out messages like this:
            \x1b]49;"valid JSON string here"\x07
         and format and send them via our json channel.
         NOTE: such messages also get sent via the
         normal channel, but ignored by the client.
      */
      if (backend_messages_state === "NONE") {
        const i = data.indexOf("\x1b");
        if (i === -1) {
          return; // nothing to worry about
        }
        backend_messages_state = "READING";
        backend_messages_buffer = data.slice(i);
//.........这里部分代码省略.........

export function ItemService(
  dimStoreService: StoreServiceType,
  D2StoresService: StoreServiceType,
  ItemFactory,
  $q,
  $i18next
): ItemServiceType {
  'ngInject';

  // We'll reload the stores to check if things have been
  // thrown away or moved and we just don't have up to date info. But let's
  // throttle these calls so we don't just keep refreshing over and over.
  // This needs to be up here because of how we return the service object.
  const throttledReloadStores = _.throttle(() => {
    return dimStoreService.reloadStores();
  }, 10000, { trailing: false });

  const throttledD2ReloadStores = _.throttle(() => {
    return D2StoresService.reloadStores();
  }, 10000, { trailing: false });

  return {
    getSimilarItem,
    moveTo,
    equipItems
  };

  function equipApi(item: DimItem): (item: DimItem) => IPromise<any> {
    return item.destinyVersion === 2 ? d2equip : d1equip;
  }

  function equipItemsApi(item: DimItem): (store: DimStore, items: DimItem[]) => IPromise<DimItem[]> {
    return item.destinyVersion === 2 ? d2EquipItems : d1EquipItems;
  }

  function transferApi(item: DimItem): (item: DimItem, store: DimStore, amount: number) => IPromise<any> {
    return item.destinyVersion === 2 ? d2Transfer : d1Transfer;
  }

  function createItemIndex(item: DimItem): string {
    return item.destinyVersion === 2 ? d2CreateItemIndex(item) : ItemFactory.createItemIndex(item);
  }

  function getStoreService(item: DimItem): StoreServiceType {
    return item.destinyVersion === 2 ? D2StoresService : dimStoreService;
  }

  /**
   * Update our item and store models after an item has been moved (or equipped/dequipped).
   * @return the new or updated item (it may create a new item!)
   */
  function updateItemModel(item: DimItem, source: DimStore, target: DimStore, equip: boolean, amount: number = item.amount) {
    // Refresh all the items - they may have been reloaded!
    const storeService = getStoreService(item);
    source = storeService.getStore(source.id)!;
    target = storeService.getStore(target.id)!;
    item = storeService.getItemAcrossStores(item)!;

    // If we've moved to a new place
    if (source.id !== target.id || item.location.inPostmaster) {
      // We handle moving stackable and nonstackable items almost exactly the same!
      const stackable = item.maxStackSize > 1;
      // Items to be decremented
      const sourceItems = stackable
        ? _.sortBy(source.buckets[item.location.id].filter((i) => {
          return i.hash === item.hash &&
                i.id === item.id &&
                !i.notransfer;
        }), 'amount') : [item];
      // Items to be incremented. There's really only ever at most one of these, but
      // it's easier to deal with as a list.
      const targetItems = stackable
        ? _.sortBy(target.buckets[item.bucket.id].filter((i) => {
          return i.hash === item.hash &&
                i.id === item.id &&
                // Don't consider full stacks as targets
                i.amount !== i.maxStackSize &&
                !i.notransfer;
        }), 'amount') : [];
      // moveAmount could be more than maxStackSize if there is more than one stack on a character!
      const moveAmount = amount || item.amount;
      let addAmount = moveAmount;
      let removeAmount = moveAmount;
      let removedSourceItem = false;

      // Remove inventory from the source
      while (removeAmount > 0) {
        let sourceItem = sourceItems.shift();
        if (!sourceItem) {
          throw new Error($i18next.t('ItemService.TooMuch'));
        }

        const amountToRemove = Math.min(removeAmount, sourceItem.amount);
        if (amountToRemove === sourceItem.amount) {
          // Completely remove the source item
          if (source.removeItem(sourceItem)) {
            removedSourceItem = sourceItem.index === item.index;
          }
        } else {
          // Perf hack: by replacing the item entirely with a cloned
//.........这里部分代码省略.........

  if (!isEmpty(installLocations)) {
    for (const x of installLocations) {
      locationSizes[x.id] = x.sizeInfo.installedSize;
    }
  }

  push(store, {
    caves: indexBy(caves, "id"),
    caveIdsByGameId: groupIdBy(caves, "gameId"),
    downloadKeys: indexBy(downloadKeys, "id"),
    downloadKeyIdsByGameId: groupIdBy(downloadKeys, "gameId"),
    locationSizes,
  });
}

const updateCommons = throttle(updateCommonsNow, 500);

export default function(watcher: Watcher) {
  watcher.on(actions.preboot, async (store, action) => {
    updateCommons(store);
  });

  watcher.on(actions.loginSucceeded, async (store, action) => {
    updateCommons(store);
  });

  watcher.on(actions.logout, async (store, action) => {
    updateCommons(store);
  });

  watcher.on(actions.windowFocusChanged, async (store, action) => {

/**
 * A service for "farming" items by moving them continuously off a character,
 * so that they don't go to the Postmaster.
 */
function FarmingService() {
  let intervalId;
  let subscription;
  const glimmerHashes = new Set([
    269776572, // -house-banners
    3632619276, // -silken-codex
    2904517731, // -axiomatic-beads
    1932910919 // -network-keys
  ]);

  // These are things you may pick up frequently out in the wild
  const makeRoomTypes = [
    'BUCKET_PRIMARY_WEAPON',
    'BUCKET_SPECIAL_WEAPON',
    'BUCKET_HEAVY_WEAPON',
    'BUCKET_HEAD',
    'BUCKET_ARMS',
    'BUCKET_CHEST',
    'BUCKET_LEGS',
    'BUCKET_CLASS_ITEMS',
    'BUCKET_ARTIFACT',
    'BUCKET_GHOST',
    'BUCKET_CONSUMABLES',
    'BUCKET_MATERIALS'
  ];

  const outOfSpaceWarning = _.throttle((store) => {
    toaster.pop(
      'info',
      t('FarmingMode.OutOfRoomTitle'),
      t('FarmingMode.OutOfRoom', { character: store.name })
    );
  }, 60000);

  return {
    active: false,
    store: null,
    itemsMoved: 0,
    movingItems: false,
    makingRoom: false,
    // Move all items on the selected character to the vault.
    moveItemsToVault(items: D1Item[], incrementCounter: boolean) {
      return getBuckets().then((buckets) => {
        const reservations: MoveReservations = {};
        if (settings.farming.makeRoomForItems) {
          // reserve one space in the active character
          reservations[this.store.id] = {};
          makeRoomTypes.forEach((type) => {
            reservations[this.store.id][buckets.byId[type].type!] = 1;
          });
        }

        return _.reduce(
          items,
          (promise, item) => {
            // Move a single item. We do this as a chain of promises so we can reevaluate the situation after each move.
            return promise
              .then(() => {
                const vault = D1StoresService.getVault()!;
                const vaultSpaceLeft = vault.spaceLeftForItem(item);
                if (vaultSpaceLeft <= 1) {
                  // If we're down to one space, try putting it on other characters
                  const otherStores = D1StoresService.getStores().filter(
                    (store) => !store.isVault && store.id !== this.store.id
                  );
                  const otherStoresWithSpace = otherStores.filter((store) =>
                    store.spaceLeftForItem(item)
                  );

                  if (otherStoresWithSpace.length) {
                    if ($featureFlags.debugMoves) {
                      console.log(
                        'Farming initiated move:',
                        item.amount,
                        item.name,
                        item.type,
                        'to',
                        otherStoresWithSpace[0].name,
                        'from',
                        D1StoresService.getStore(item.owner)!.name
                      );
                    }
                    return dimItemService.moveTo(
                      item,
                      otherStoresWithSpace[0],
                      false,
                      item.amount,
                      items,
                      reservations
                    );
                  }
                }
                if ($featureFlags.debugMoves) {
                  console.log(
                    'Farming initiated move:',
                    item.amount,
//.........这里部分代码省略.........

export function D2FarmingService(
  $rootScope: IRootScopeService,
  $q: IQService,
  dimItemService: ItemServiceType,
  D2StoresService: StoreServiceType,
  $interval: IIntervalService,
  toaster,
  $i18next
) {
  'ngInject';

  let intervalId;
  let subscription;

  const outOfSpaceWarning = _.throttle((store) => {
    toaster.pop('info',
                $i18next.t('FarmingMode.OutOfRoomTitle'),
                $i18next.t('FarmingMode.OutOfRoom', { character: store.name }));
  }, 60000);

  function getMakeRoomBuckets() {
    return getBuckets().then((buckets) => {
      return Object.values(buckets.byHash).filter((b) => b.category === 3 && b.type);
    });
  }

  return {
    active: false,
    store: null,
    movingItems: false,
    makingRoom: false,

    // Ensure that there's one open space in each category that could
    // hold an item, so they don't go to the postmaster.
    async makeRoomForItems(store: DimStore) {
      const makeRoomBuckets = await getMakeRoomBuckets();

      // If any category is full, we'll move one aside
      let itemsToMove: DimItem[] = [];
      makeRoomBuckets.forEach((makeRoomBucket) => {
        const items = store.buckets[makeRoomBucket.id];
        if (items.length > 0 && items.length >= makeRoomBucket.capacity) {
          // We'll move the lowest-value item to the vault.
          const itemToMove = _.min(items.filter((i) => !i.equipped && !i.notransfer), (i) => {
            let value = {
              Common: 0,
              Uncommon: 1,
              Rare: 2,
              Legendary: 3,
              Exotic: 4
            }[i.tier];
            // And low-stat
            if (i.primStat) {
              value += i.primStat.value / 1000;
            }
            return value;
          });
          if (!_.isNumber(itemToMove)) {
            itemsToMove.push(itemToMove);
          }
        }
      });

      if (settings.farming.moveTokens) {
        itemsToMove = itemsToMove.concat(store.items.filter((i) => REP_TOKENS.has(i.hash)));
      }

      if (itemsToMove.length === 0) {
        return $q.resolve();
      }

      return moveItemsToVault(store, itemsToMove, makeRoomBuckets);
    },

    async farm(store: DimStore) {
      this.makingRoom = true;
      try {
        // Then make room for items
        await this.makeRoomForItems(store);
      } finally {
        this.makingRoom = false;
      }
    },

    start(account: DestinyAccount, storeId: string) {
      if (!this.active) {
        this.active = true;
        this.movingItems = false;
        this.makingRoom = false;

        // Whenever the store is reloaded, run the farming algo
        // That way folks can reload manually too
        subscription = D2StoresService.getStoresStream(account).subscribe((stores) => {
          // prevent some recursion...
          if (this.active && !this.movingItems && !this.makingRoom && stores) {
            const store = stores.find((s) => s.id === storeId);
            this.store = store;
            this.farm(store);
          }
        });
//.........这里部分代码省略.........

import { SyncService } from '../storage/sync.service';
import store from '../store/store';
import { loaded } from './actions';
import { observeStore } from '../redux-utils';
import { Unsubscribe } from 'redux';
import { Settings, initialSettingsState } from './reducer';

let readyResolve;
export const settingsReady = new Promise((resolve) => (readyResolve = resolve));

// This is a backwards-compatibility shim for all the code that directly uses settings
export let settings = initialSettingsState;

const saveSettings = _.throttle((settings) => {
  return SyncService.set({
    'settings-v1.0': settings
  });
}, 1000);

function saveSettingsOnUpdate() {
  return observeStore(
    (state) => state.settings,
    (_currentState, nextState) => {
      settings = nextState;
      saveSettings(nextState);
    }
  );
}

let unsubscribe: Unsubscribe;

      return GameFetcher;
  }
  return null;
}

const queueCleanup = throttle((store: IStore, window: string) => {
  // TODO: figure that out multi-window
  const validKeys = new Set(
    Object.keys(store.getState().windows[window].tabInstances)
  );

  const wfs = getWindowFetchState(window);

  const allKeys = union(
    Object.keys(wfs.lastFetchers),
    Object.keys(wfs.nextFetchReason),
    Object.keys(wfs.fetching)
  );
  for (const k of allKeys) {
    if (!validKeys.has(k)) {
      logger.debug(`Cleaning up ${k}`);
      delete wfs.lastFetchers[k];
      delete wfs.fetching[k];
      delete wfs.nextFetchReason[k];
    }
  }
}, 3000 /* space out cleanups */);

export default function(watcher: Watcher) {
  // changing tabs? it's a fetching
  watcher.on(actions.tabChanged, async (store, action) => {
    const { window, tab } = action.payload;