@fruits-chain/react-native-xiaoshu/lib/commonjs/tab-bar/index.js

🌈 React Native UI library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _isNil = _interopRequireDefault(require("lodash/isNil"));

var _react = _interopRequireWildcard(require("react"));

var _reactNative = require("react-native");

var _bottomBar = _interopRequireDefault(require("../bottom-bar"));

var _style = require("../button/style");

var _helpers = require("../helpers");

var _hooks = require("../hooks");

var _theme = _interopRequireDefault(require("../theme"));

var _style2 = require("./style");

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

function _extends() { _extends = Object.assign || 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 TabBar = _ref => {
  var _options$;

  let {
    textColor,
    iconColor,
    activeTextColor,
    activeIconColor,
    options,
    indicator = false,
    indicatorWidth,
    indicatorHeight = 3,
    indicatorColor,
    tabAlign = 'center',
    height,
    style,
    ...restProps
  } = _ref;
  const tabNum = options.length;
  const isTabAdaption = tabAlign === 'center';
  const isTabTextCompact = (0, _isNil.default)(indicatorWidth);
  const isIndicatorWidthLayout = isTabTextCompact || indicatorWidth === 0;
  const [value, onChange] = (0, _hooks.useControllableValue)(restProps, {
    defaultValue: (_options$ = options[0]) === null || _options$ === void 0 ? void 0 : _options$.value
  });

  const TOKENS = _theme.default.useThemeTokens();

  const CV = _theme.default.createVar(TOKENS, _style2.varCreator);

  const CV_BUTTON = _theme.default.createVar(TOKENS, _style.varCreator);

  const STYLES = _theme.default.createStyle(CV, _style2.styleCreator);

  const [state, setState] = (0, _react.useState)({
    layoutFinish: false
  });
  const layouts = (0, _react.useRef)(new Array(tabNum).fill({}));
  const AnimatedIndicatorLeft = (0, _react.useRef)(new _reactNative.Animated.Value(0));
  const AnimatedIndicatorWidth = (0, _react.useRef)(new _reactNative.Animated.Value(0));
  const ScrollViewRef = (0, _react.useRef)(null);
  const scrollViewWidth = (0, _react.useRef)(0);

  if (indicator && (0, _isNil.default)(height)) {
    height = 40;
  }

  textColor = (0, _helpers.getDefaultValue)(textColor, CV.tab_bar_text_color);
  iconColor = (0, _helpers.getDefaultValue)(iconColor, CV.tab_bar_icon_color);
  activeTextColor = (0, _helpers.getDefaultValue)(activeTextColor, CV.tab_bar_active_text_color);
  activeIconColor = (0, _helpers.getDefaultValue)(activeIconColor, CV.tab_bar_active_icon_color);
  indicatorColor = (0, _helpers.getDefaultValue)(indicatorColor, CV.tab_bar_indicator_color);
  const navigateTo = (0, _react.useCallback)(n => {
    const targetLayout = layouts.current[n];
    const left = targetLayout.tab.x + (targetLayout.tab.width - (isIndicatorWidthLayout ? targetLayout.text.width : indicatorWidth)) / 2;
    const width = isIndicatorWidthLayout ? targetLayout.text.width : indicatorWidth;

    _reactNative.Animated.parallel([_reactNative.Animated.timing(AnimatedIndicatorLeft.current, {
      toValue: left,
      useNativeDriver: false,
      duration: TOKENS.animation_duration_base
    }), _reactNative.Animated.timing(AnimatedIndicatorWidth.current, {
      toValue: width,
      useNativeDriver: false,
      duration: TOKENS.animation_duration_base
    })]).start();

    if (!isTabAdaption) {
      const hh = scrollViewWidth.current / 2;
      ScrollViewRef.current.scrollTo({
        x: targetLayout.tab.x + targetLayout.tab.width / 2 - hh,
        animated: true
      });
    }
  }, [TOKENS.animation_duration_base, indicatorWidth, isIndicatorWidthLayout, isTabAdaption]);
  const initIndicator = (0, _react.useCallback)(() => {
    const layoutItems = layouts.current.filter(item => item.tab && item.text);

    if (layoutItems.length === layouts.current.length) {
      setState(s => ({ ...s,
        layoutFinish: true
      }));
    }
  }, []);
  (0, _react.useEffect)(() => {
    if (state.layoutFinish) {
      const n = options.findIndex(item => item.value === value);
      navigateTo(n);
    }
  }, [value, options, state.layoutFinish, navigateTo]);
  const onLayoutScrollView = (0, _react.useCallback)(e => {
    scrollViewWidth.current = e.nativeEvent.layout.width;
  }, []);

  const genOnPress = v => () => {
    onChange(v);
  };

  const genOnLayoutTab = i => e => {
    var _layouts$current$i;

    layouts.current[i] = {
      text: (_layouts$current$i = layouts.current[i]) === null || _layouts$current$i === void 0 ? void 0 : _layouts$current$i.text,
      tab: e.nativeEvent.layout
    };
    initIndicator();
  };

  const genOnLayoutText = i => e => {
    var _layouts$current$i2;

    layouts.current[i] = {
      tab: (_layouts$current$i2 = layouts.current[i]) === null || _layouts$current$i2 === void 0 ? void 0 : _layouts$current$i2.tab,
      text: e.nativeEvent.layout
    };
    initIndicator();
  };

  const tabs = options.map((item, index) => {
    var _item$iconRender;

    const isActive = item.value === value;
    return /*#__PURE__*/_react.default.createElement(_reactNative.TouchableOpacity, {
      key: item.value,
      style: [STYLES.item, isTabAdaption ? STYLES.item_adaption : null, item.iconRender ? null : STYLES.item_no_icon],
      activeOpacity: CV_BUTTON.button_active_opacity,
      onPress: isActive ? undefined : genOnPress(item.value),
      onLayout: genOnLayoutTab(index)
    }, (_item$iconRender = item.iconRender) === null || _item$iconRender === void 0 ? void 0 : _item$iconRender.call(item, isActive ? activeIconColor : iconColor), /*#__PURE__*/_react.default.createElement(_reactNative.Text, {
      style: [STYLES.item_text, isTabTextCompact ? null : STYLES.item_text_full, item.iconRender ? STYLES.item_text_icon : null, // eslint-disable-next-line react-native/no-inline-styles
      {
        color: isActive ? activeTextColor : textColor,
        fontWeight: isActive && indicator ? '500' : 'normal'
      }],
      onLayout: genOnLayoutText(index)
    }, item.label));
  });
  const indicatorJSX = indicator && state.layoutFinish ? /*#__PURE__*/_react.default.createElement(_reactNative.Animated.View, {
    // eslint-disable-next-line react-native/no-inline-styles
    style: {
      height: indicatorHeight,
      width: AnimatedIndicatorWidth.current,
      backgroundColor: indicatorColor,
      position: 'absolute',
      left: AnimatedIndicatorLeft.current,
      bottom: 0
    }
  }) : null;
  return /*#__PURE__*/_react.default.createElement(_bottomBar.default, _extends({}, restProps, {
    height: height,
    style: [STYLES.tab_bar, style]
  }), isTabAdaption ? /*#__PURE__*/_react.default.createElement(_react.default.Fragment, null, tabs, indicatorJSX) : /*#__PURE__*/_react.default.createElement(_reactNative.ScrollView, {
    onLayout: onLayoutScrollView,
    ref: ScrollViewRef,
    horizontal: true,
    bounces: false,
    showsHorizontalScrollIndicator: false,
    style: STYLES.tab_bar_scroll,
    contentContainerStyle: STYLES.tab_bar_scroll_content
  }, indicatorJSX, tabs));
};

var _default = /*#__PURE__*/(0, _react.memo)(TabBar);

exports.default = _default;
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