choerodon-ui/es/rc-components/tabs/InkTabBarMixin.js

An enterprise-class UI design language and React-based implementation

import _defineProperty from "@babel/runtime/helpers/defineProperty";
import { isTransformSupported, setTransform, getLeft, getTop } from './utils';
import React from 'react';
import classnames from 'classnames';
var isDev = process.env.NODE_ENV !== 'production';
export function getScroll(w, top) {
  var ret = w["page".concat(top ? 'Y' : 'X', "Offset")];
  var method = "scroll".concat(top ? 'Top' : 'Left');

  if (typeof ret !== 'number') {
    var d = w.document; // ie6,7,8 standard mode

    ret = d.documentElement[method];

    if (typeof ret !== 'number') {
      // quirks mode
      ret = d.body[method];
    }
  }

  return ret;
}

function offset(elem) {
  var box;
  var x;
  var y;
  var doc = elem.ownerDocument;
  var body = doc.body;
  var docElem = doc && doc.documentElement;
  box = elem.getBoundingClientRect();
  x = box.left;
  y = box.top;
  x -= docElem.clientLeft || body.clientLeft || 0;
  y -= docElem.clientTop || body.clientTop || 0;
  var w = doc.defaultView || doc.parentWindow;
  x += getScroll(w);
  y += getScroll(w, true);
  return {
    left: x,
    top: y
  };
}

function _componentDidUpdate(component, init) {
  var styles = component.props.styles;
  var rootNode = component.root;
  var wrapNode = component.nav || rootNode;
  var inkBarNode = component.inkBar;
  var activeTab = component.activeTab;
  var inkBarNodeStyle = inkBarNode.style;
  var tabBarPosition = component.props.tabBarPosition;

  if (init) {
    // prevent mount animation
    inkBarNodeStyle.display = 'none';
  }

  if (activeTab) {
    var tabNode = activeTab;
    var transformSupported = isTransformSupported(inkBarNodeStyle);

    if (tabBarPosition === 'top' || tabBarPosition === 'bottom') {
      var left = getLeft(tabNode, wrapNode);
      var width = tabNode.offsetWidth; // If tabNode'width width equal to wrapNode'width when tabBarPosition is top or bottom
      // It means no css working, then ink bar should not have width until css is loaded

      if (width === rootNode.offsetWidth) {
        width = 0;
      } else if (styles.inkBar && styles.inkBar.width !== undefined) {
        width = parseFloat(styles.inkBar.width, 10);

        if (width) {
          left = left + (tabNode.offsetWidth - width) / 2;
        }
      } // use 3d gpu to optimize render


      if (transformSupported) {
        setTransform(inkBarNodeStyle, "translate3d(".concat(left, "px,0,0)"));
        inkBarNodeStyle.width = "".concat(width, "px");
        inkBarNodeStyle.height = '';
      } else {
        inkBarNodeStyle.left = "".concat(left, "px");
        inkBarNodeStyle.top = '';
        inkBarNodeStyle.bottom = '';
        inkBarNodeStyle.right = "".concat(wrapNode.offsetWidth - left - width, "px");
      }
    } else {
      var top = getTop(tabNode, wrapNode);
      var height = tabNode.offsetHeight;

      if (styles.inkBar && styles.inkBar.height !== undefined) {
        height = parseFloat(styles.inkBar.height, 10);

        if (height) {
          top = top + (tabNode.offsetHeight - height) / 2;
        }
      }

      if (transformSupported) {
        setTransform(inkBarNodeStyle, "translate3d(0,".concat(top, "px,0)"));
        inkBarNodeStyle.height = "".concat(height, "px");
        inkBarNodeStyle.width = '';
      } else {
        inkBarNodeStyle.left = '';
        inkBarNodeStyle.right = '';
        inkBarNodeStyle.top = "".concat(top, "px");
        inkBarNodeStyle.bottom = "".concat(wrapNode.offsetHeight - top - height, "px");
      }
    }
  }

  inkBarNodeStyle.display = activeTab ? 'block' : 'none';
}

export default {
  getDefaultProps: function getDefaultProps() {
    return {
      inkBarAnimated: true
    };
  },
  componentDidUpdate: function componentDidUpdate() {
    _componentDidUpdate(this);
  },
  componentDidMount: function componentDidMount() {
    var _this = this;

    if (isDev) {
      this.timeout = setTimeout(function () {
        _componentDidUpdate(_this, true);
      }, 0);
    } else {
      _componentDidUpdate(this, true);
    }
  },
  componentWillUnmount: function componentWillUnmount() {
    clearTimeout(this.timeout);
  },
  getInkBarNode: function getInkBarNode() {
    var _classnames;

    var _this$props = this.props,
        prefixCls = _this$props.prefixCls,
        styles = _this$props.styles,
        inkBarAnimated = _this$props.inkBarAnimated;
    var className = "".concat(prefixCls, "-ink-bar");
    var classes = classnames((_classnames = {}, _defineProperty(_classnames, className, true), _defineProperty(_classnames, inkBarAnimated ? "".concat(className, "-animated") : "".concat(className, "-no-animated"), true), _classnames));
    return React.createElement("div", {
      style: styles.inkBar,
      className: classes,
      key: "inkBar",
      ref: this.saveRef('inkBar')
    });
  }
};
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