@sendbird/uikit-react-native
Version:
Sendbird UIKit for React Native: A feature-rich and customizable chat UI kit with messaging, channel management, and user authentication.
76 lines (75 loc) • 4.04 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _react = _interopRequireWildcard(require("react"));
var _reactNative = require("react-native");
var _uikitReactNativeFoundation = require("@sendbird/uikit-react-native-foundation");
var _uikitUtils = require("@sendbird/uikit-utils");
var _FlatListInternal = _interopRequireDefault(require("../ChatFlatList/FlatListInternal"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (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 _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
const BOTTOM_DETECT_THRESHOLD = 50;
const UNREACHABLE_THRESHOLD = Number.MIN_SAFE_INTEGER;
const ThreadChatFlatList = /*#__PURE__*/(0, _react.forwardRef)(function ThreadChatFlatList(_ref, ref) {
let {
onTopReached,
onBottomReached,
onScrolledAwayFromBottom,
onScroll,
...props
} = _ref;
const {
select
} = (0, _uikitReactNativeFoundation.useUIKitTheme)();
const contentOffsetY = (0, _react.useRef)(0);
const _onScroll = (0, _uikitUtils.useFreshCallback)(event => {
onScroll === null || onScroll === void 0 ? void 0 : onScroll(event);
const {
contentOffset,
contentSize,
layoutMeasurement
} = event.nativeEvent;
const prevOffsetY = contentOffsetY.current;
const currOffsetY = contentOffset.y;
const bottomDetectThreshold = contentSize.height - layoutMeasurement.height - BOTTOM_DETECT_THRESHOLD;
if (bottomDetectThreshold < prevOffsetY && currOffsetY <= bottomDetectThreshold) {
onScrolledAwayFromBottom(true);
} else if (bottomDetectThreshold < currOffsetY && prevOffsetY <= bottomDetectThreshold) {
onScrolledAwayFromBottom(false);
}
contentOffsetY.current = contentOffset.y;
});
return /*#__PURE__*/_react.default.createElement(_FlatListInternal.default, _extends({
bounces: false,
removeClippedSubviews: true,
keyboardDismissMode: 'on-drag',
keyboardShouldPersistTaps: 'handled',
indicatorStyle: select({
light: 'black',
dark: 'white'
})
}, props, {
ref: ref,
onEndReached: onBottomReached,
onScrollToIndexFailed: _uikitUtils.NOOP,
onStartReached: onTopReached,
scrollEventThrottle: 16,
onScroll: _onScroll,
keyExtractor: _uikitUtils.getMessageUniqId,
style: {
flex: 1,
..._reactNative.StyleSheet.flatten(props.style)
},
maintainVisibleContentPosition: {
minIndexForVisible: 0,
autoscrollToTopThreshold: UNREACHABLE_THRESHOLD
}
}));
});
var _default = ThreadChatFlatList;
exports.default = _default;
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