botframework-webchat-component/lib/hooks/useObserveTranscriptFocus.js

React component of botframework-webchat

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = useObserveTranscriptFocus;

var _react = require("react");

var _useWebChatUIContext2 = _interopRequireDefault(require("./internal/useWebChatUIContext"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function useObserveTranscriptFocus(observer, deps) {
  if (typeof observer !== 'function') {
    observer = undefined;
    console.warn('botframework-webchat: First argument passed to "useObserveTranscriptFocus" must be a function.');
  } else if (typeof deps !== 'undefined' && !Array.isArray(deps)) {
    console.warn('botframework-webchat: Second argument passed to "useObserveTranscriptFocus" must be an array if specified.');
  }

  var _useWebChatUIContext = (0, _useWebChatUIContext2.default)(),
      observeTranscriptFocus = _useWebChatUIContext.observeTranscriptFocus;
  /* eslint-disable-next-line react-hooks/exhaustive-deps */


  (0, _react.useEffect)(function () {
    return observer && observeTranscriptFocus(observer);
  }, [].concat(_toConsumableArray(deps || []), [observer, observeTranscriptFocus]));
}
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