botframework-webchat-component
Version:
React component of botframework-webchat
153 lines (149 loc) • 33.6 kB
JavaScript
function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _botframeworkWebchatApi = require("botframework-webchat-api");
var _propTypes = _interopRequireDefault(require("prop-types"));
var _mathRandom = _interopRequireDefault(require("math-random"));
var _react = _interopRequireWildcard(require("react"));
var _scrollIntoViewWithBlockNearest = _interopRequireDefault(require("../../Utils/scrollIntoViewWithBlockNearest"));
var _Context = _interopRequireDefault(require("./private/Context"));
var _useActivityTreeWithRenderer = _interopRequireDefault(require("../ActivityTree/useActivityTreeWithRenderer"));
var _usePrevious = _interopRequireDefault(require("../../hooks/internal/usePrevious"));
var _useStateRef3 = _interopRequireDefault(require("../../hooks/internal/useStateRef"));
var _useValueRef = _interopRequireDefault(require("../../hooks/internal/useValueRef"));
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure 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$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
var useGetKeyByActivity = _botframeworkWebchatApi.hooks.useGetKeyByActivity;
function last(array) {
return array[array.length - 1];
}
function uniqueId() {
var count = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Infinity;
return (0, _mathRandom.default)()
// eslint-disable-next-line no-magic-numbers
.toString(36)
// eslint-disable-next-line no-magic-numbers
.substring(2, 2 + count);
}
var TranscriptFocusComposer = function TranscriptFocusComposer(_ref) {
var _containerRef$current;
var children = _ref.children,
containerRef = _ref.containerRef;
var _useActivityTreeWithR = (0, _useActivityTreeWithRenderer.default)({
flat: true
}),
_useActivityTreeWithR2 = _slicedToArray(_useActivityTreeWithR, 1),
flattenedActivityTree = _useActivityTreeWithR2[0];
var _useStateRef = (0, _useStateRef3.default)(),
_useStateRef2 = _slicedToArray(_useStateRef, 3),
_ = _useStateRef2[0],
setRawFocusedActivityKey = _useStateRef2[1],
rawFocusedActivityKeyRef = _useStateRef2[2];
var getKeyByActivity = useGetKeyByActivity();
// As we need to use IDREF for `aria-activedescendant`,
// this prefix will differentiate multiple instances of transcript on the same page.
// eslint-disable-next-line no-magic-numbers
var prefix = (0, _react.useMemo)(function () {
return uniqueId(3);
}, []);
var getDescendantIdByActivityKey = (0, _react.useCallback)(function (activityKey) {
return activityKey && "webchat__transcript-focus-".concat(prefix, "__activity-").concat(activityKey);
}, [prefix]);
var renderingActivityKeys = (0, _react.useMemo)(function () {
return Object.freeze(flattenedActivityTree.map(function (_ref2) {
var activity = _ref2.activity;
return getKeyByActivity(activity);
}));
}, [flattenedActivityTree, getKeyByActivity]);
var renderingActivityKeysRef = (0, _useValueRef.default)(renderingActivityKeys);
// While the transcript or any descendants are not focused, if the transcript is updated, reset the user-selected active descendant.
// This will assume the last activity, if any, will be the active descendant.
var prevRenderingActivityKeys = (0, _usePrevious.default)(renderingActivityKeys);
if (renderingActivityKeys !== prevRenderingActivityKeys && !((_containerRef$current = containerRef.current) !== null && _containerRef$current !== void 0 && _containerRef$current.contains(document.activeElement))) {
rawFocusedActivityKeyRef.current = undefined;
}
var rawFocusedActivityKey = rawFocusedActivityKeyRef.current;
var focusedActivityKey = (0, _react.useMemo)(function () {
return renderingActivityKeys.includes(rawFocusedActivityKey) ? rawFocusedActivityKey : last(renderingActivityKeys);
}, [renderingActivityKeys, rawFocusedActivityKey]);
var focusedActivityKeyRef = (0, _useValueRef.default)(focusedActivityKey);
var activeDescendantId = (0, _react.useMemo)(function () {
return getDescendantIdByActivityKey(focusedActivityKey);
}, [getDescendantIdByActivityKey, focusedActivityKey]);
var focusByActivityKey = (0, _react.useCallback)(function (activityKey) {
var withFocus = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
if (activityKey === false) {
// `false` means set it to nothing.
setRawFocusedActivityKey(undefined);
} else if (activityKey === true) {
// `true` means set to something if it is not set.
setRawFocusedActivityKey(function (key) {
return key || focusedActivityKeyRef.current;
});
} else if (activityKey) {
setRawFocusedActivityKey(activityKey);
}
if (withFocus) {
var _containerRef$current2;
(_containerRef$current2 = containerRef.current) === null || _containerRef$current2 === void 0 ? void 0 : _containerRef$current2.focus();
var _activeDescendantId = getDescendantIdByActivityKey(activityKey === false ?
// If "activityKey" is false, it means "focus nothing and reset it to the last activity".
last(renderingActivityKeysRef.current) : activityKey && activityKey !== true ?
// If "activity" is not "undefined" and not "true", it means "focus on this activity".
activityKey :
// If "activityKey" is "undefined", it means "don't modify the focus".
// If "activityKey" is "true", it means "try to focus on anything".
rawFocusedActivityKeyRef.current);
var activeDescendantElement = _activeDescendantId && document.getElementById(_activeDescendantId);
// Don't scroll active descendant into view if the focus is already inside it.
// Otherwise, given the focus is on the send box, clicking on any <input> inside the Adaptive Cards may cause the view to move.
// This UX is not desirable because click should not cause scroll.
if (activeDescendantElement && !activeDescendantElement.contains(document.activeElement)) {
(0, _scrollIntoViewWithBlockNearest.default)(activeDescendantElement);
}
}
}, [getDescendantIdByActivityKey, containerRef, focusedActivityKeyRef, renderingActivityKeysRef, rawFocusedActivityKeyRef, setRawFocusedActivityKey]);
var focusRelativeActivity = (0, _react.useCallback)(function (delta) {
var orderedActivityKeys = renderingActivityKeysRef.current;
if (isNaN(delta) || !orderedActivityKeys.length) {
return focusByActivityKey(false, true);
}
var focusedActivityKey = focusedActivityKeyRef.current;
var index = orderedActivityKeys.indexOf(focusedActivityKey);
var nextIndex = ~index ? Math.max(0, Math.min(orderedActivityKeys.length - 1, index + delta)) : orderedActivityKeys.length - 1;
focusByActivityKey(orderedActivityKeys[+nextIndex], true);
}, [focusedActivityKeyRef, renderingActivityKeysRef, focusByActivityKey]);
var contextValue = (0, _react.useMemo)(function () {
return {
activeDescendantIdState: Object.freeze([activeDescendantId]),
getDescendantIdByActivityKey: getDescendantIdByActivityKey,
focusByActivityKey: focusByActivityKey,
focusedActivityKeyState: Object.freeze([focusedActivityKey]),
focusedExplicitlyState: Object.freeze([!!rawFocusedActivityKey]),
focusRelativeActivity: focusRelativeActivity
};
}, [activeDescendantId, getDescendantIdByActivityKey, focusByActivityKey, focusedActivityKey, focusRelativeActivity, rawFocusedActivityKey]);
return /*#__PURE__*/_react.default.createElement(_Context.default.Provider, {
value: contextValue
}, children);
};
TranscriptFocusComposer.propTypes = {
// PropTypes is not fully compatible with TypeScript.
// @ts-ignore
containerRef: _propTypes.default.shape({
current: _propTypes.default.instanceOf(HTMLElement)
}).isRequired
};
var _default = TranscriptFocusComposer;
exports.default = _default;
//# 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{ hooks } from 'botframework-webchat-api';\nimport PropTypes from 'prop-types';\nimport random from 'math-random';\nimport React, { useCallback, useMemo } from 'react';\n\nimport scrollIntoViewWithBlockNearest from '../../Utils/scrollIntoViewWithBlockNearest';\nimport TranscriptFocusContext from './private/Context';\nimport useActivityTreeWithRenderer from '../ActivityTree/useActivityTreeWithRenderer';\nimport usePrevious from '../../hooks/internal/usePrevious';\nimport useStateRef from '../../hooks/internal/useStateRef';\nimport useValueRef from '../../hooks/internal/useValueRef';\n\nimport type { FC, MutableRefObject, PropsWithChildren } from 'react';\nimport type { TranscriptFocusContextType } from './private/Context';\n\nconst { useGetKeyByActivity } = hooks;\n\ntype TranscriptFocusComposerProps = PropsWithChildren<{\n  containerRef: MutableRefObject<HTMLElement>;\n}>;\n\nfunction last<T>(array: ArrayLike<T>) {\n  return array[array.length - 1];\n}\n\nfunction uniqueId(count = Infinity) {\n  return (\n    random()\n      // eslint-disable-next-line no-magic-numbers\n      .toString(36)\n      // eslint-disable-next-line no-magic-numbers\n      .substring(2, 2 + count)\n  );\n}\n\nconst TranscriptFocusComposer: FC<TranscriptFocusComposerProps> = ({ children, containerRef }) => {\n  const [flattenedActivityTree] = useActivityTreeWithRenderer({ flat: true });\n  const [_, setRawFocusedActivityKey, rawFocusedActivityKeyRef] = useStateRef<string | undefined>();\n  const getKeyByActivity = useGetKeyByActivity();\n\n  // As we need to use IDREF for `aria-activedescendant`,\n  // this prefix will differentiate multiple instances of transcript on the same page.\n  // eslint-disable-next-line no-magic-numbers\n  const prefix = useMemo<string>(() => uniqueId(3), []);\n\n  const getDescendantIdByActivityKey: (activityKey?: string) => string | undefined = useCallback(\n    (activityKey?: string) => activityKey && `webchat__transcript-focus-${prefix}__activity-${activityKey}`,\n    [prefix]\n  );\n\n  const renderingActivityKeys = useMemo<readonly string[]>(\n    () => Object.freeze(flattenedActivityTree.map(({ activity }) => getKeyByActivity(activity))),\n    [flattenedActivityTree, getKeyByActivity]\n  );\n\n  const renderingActivityKeysRef = useValueRef<readonly string[]>(renderingActivityKeys);\n\n  // While the transcript or any descendants are not focused, if the transcript is updated, reset the user-selected active descendant.\n  // This will assume the last activity, if any, will be the active descendant.\n  const prevRenderingActivityKeys = usePrevious(renderingActivityKeys);\n\n  if (renderingActivityKeys !== prevRenderingActivityKeys && !containerRef.current?.contains(document.activeElement)) {\n    rawFocusedActivityKeyRef.current = undefined;\n  }\n\n  const { current: rawFocusedActivityKey } = rawFocusedActivityKeyRef;\n\n  const focusedActivityKey = useMemo<string>(\n    () => (renderingActivityKeys.includes(rawFocusedActivityKey) ? rawFocusedActivityKey : last(renderingActivityKeys)),\n    [renderingActivityKeys, rawFocusedActivityKey]\n  );\n\n  const focusedActivityKeyRef = useValueRef(focusedActivityKey);\n\n  const activeDescendantId = useMemo<string>(\n    () => getDescendantIdByActivityKey(focusedActivityKey),\n    [getDescendantIdByActivityKey, focusedActivityKey]\n  );\n\n  const focusByActivityKey = useCallback<\n    (activityKey: boolean | string | undefined, withFocus: boolean | undefined) => void\n  >(\n    (activityKey: boolean | string | undefined, withFocus: boolean | undefined = true) => {\n      if (activityKey === false) {\n        // `false` means set it to nothing.\n        setRawFocusedActivityKey(undefined);\n      } else if (activityKey === true) {\n        // `true` means set to something if it is not set.\n        setRawFocusedActivityKey(key => key || focusedActivityKeyRef.current);\n      } else if (activityKey) {\n        setRawFocusedActivityKey(activityKey);\n      }\n\n      if (withFocus) {\n        containerRef.current?.focus();\n\n        const activeDescendantId = getDescendantIdByActivityKey(\n          activityKey === false\n            ? // If \"activityKey\" is false, it means \"focus nothing and reset it to the last activity\".\n              last(renderingActivityKeysRef.current)\n            : activityKey && activityKey !== true\n              ? // If \"activity\" is not \"undefined\" and not \"true\", it means \"focus on this activity\".\n                activityKey\n              : // If \"activityKey\" is \"undefined\", it means \"don't modify the focus\".\n                // If \"activityKey\" is \"true\", it means \"try to focus on anything\".\n                rawFocusedActivityKeyRef.current\n        );\n\n        const activeDescendantElement = activeDescendantId && document.getElementById(activeDescendantId);\n\n        // Don't scroll active descendant into view if the focus is already inside it.\n        // Otherwise, given the focus is on the send box, clicking on any <input> inside the Adaptive Cards may cause the view to move.\n        // This UX is not desirable because click should not cause scroll.\n        if (activeDescendantElement && !activeDescendantElement.contains(document.activeElement)) {\n          scrollIntoViewWithBlockNearest(activeDescendantElement);\n        }\n      }\n    },\n    [\n      getDescendantIdByActivityKey,\n      containerRef,\n      focusedActivityKeyRef,\n      renderingActivityKeysRef,\n      rawFocusedActivityKeyRef,\n      setRawFocusedActivityKey\n    ]\n  );\n\n  const focusRelativeActivity = useCallback(\n    (delta: number) => {\n      const { current: orderedActivityKeys } = renderingActivityKeysRef;\n\n      if (isNaN(delta) || !orderedActivityKeys.length) {\n        return focusByActivityKey(false, true);\n      }\n\n      const { current: focusedActivityKey } = focusedActivityKeyRef;\n\n      const index = orderedActivityKeys.indexOf(focusedActivityKey);\n      const nextIndex = ~index\n        ? Math.max(0, Math.min(orderedActivityKeys.length - 1, index + delta))\n        : orderedActivityKeys.length - 1;\n\n      focusByActivityKey(orderedActivityKeys[+nextIndex], true);\n    },\n    [focusedActivityKeyRef, renderingActivityKeysRef, focusByActivityKey]\n  );\n\n  const contextValue = useMemo<TranscriptFocusContextType>(\n    () => ({\n      activeDescendantIdState: Object.freeze([activeDescendantId]) as readonly [string],\n      getDescendantIdByActivityKey,\n      focusByActivityKey,\n      focusedActivityKeyState: Object.freeze([focusedActivityKey]) as readonly [string],\n      focusedExplicitlyState: Object.freeze([!!rawFocusedActivityKey]) as readonly [boolean],\n      focusRelativeActivity\n    }),\n    [\n      activeDescendantId,\n      getDescendantIdByActivityKey,\n      focusByActivityKey,\n      focusedActivityKey,\n      focusRelativeActivity,\n      rawFocusedActivityKey\n    ]\n  );\n\n  return <TranscriptFocusContext.Provider value={contextValue}>{children}</TranscriptFocusContext.Provider>;\n};\n\nTranscriptFocusComposer.propTypes = {\n  // PropTypes is not fully compatible with TypeScript.\n  // @ts-ignore\n  containerRef: PropTypes.shape({\n    current: PropTypes.instanceOf(HTMLElement)\n  }).isRequired\n};\n\nexport default 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