@orca-fe/pdf-viewer/es/ToolbarPortal/ToolbarPortal.js

PDF Viewer

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$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
import React, { useContext, useEffect, useState } from 'react';
import ReactDOM from 'react-dom';
import { useCounter } from 'ahooks';
import PDFViewerContext, { PDFToolbarContext } from "../context";
import { Fragment as _Fragment } from "react/jsx-runtime";
import { jsx as _jsx } from "react/jsx-runtime";
var index = 0;
var ToolbarPortal = props => {
  var _props$placement = props.placement,
    placement = _props$placement === void 0 ? 'center' : _props$placement,
    children = props.children,
    order = props.order,
    alwaysShow = props.alwaysShow;
  var _useContext = useContext(PDFViewerContext),
    pages = _useContext.pages;
  var _useContext2 = useContext(PDFToolbarContext),
    toolbarRightDom = _useContext2.toolbarRightDom,
    toolbarLeftDom = _useContext2.toolbarLeftDom,
    removeCenterToolbarId = _useContext2.removeCenterToolbarId,
    addCenterToolbarId = _useContext2.addCenterToolbarId,
    centerToolbarIds = _useContext2.centerToolbarIds;
  var _useState = useState(() => `pdfViewerToolbar_${Date.now()}${index++}`),
    _useState2 = _slicedToArray(_useState, 1),
    id = _useState2[0];
  var _useCounter = useCounter(0),
    _useCounter2 = _slicedToArray(_useCounter, 2),
    refresh = _useCounter2[1].inc;
  var show = alwaysShow || pages.length > 0;
  useEffect(() => {
    if (show && placement === 'center') {
      addCenterToolbarId(id, order);
      return () => {
        removeCenterToolbarId(id);
      };
    }
    return undefined;
  }, [placement, order, show]);
  useEffect(() => {
    refresh();
  }, [centerToolbarIds]);
  var toolbarDom = null;
  if (placement === 'left') toolbarDom = toolbarLeftDom;
  if (placement === 'right') toolbarDom = toolbarRightDom;
  if (placement === 'center') toolbarDom = document.getElementById(id);
  if (toolbarDom == null) return null;
  if (!show) return null;
  return /*#__PURE__*/_jsx(_Fragment, {
    children: toolbarDom ? /*#__PURE__*/ReactDOM.createPortal(children, toolbarDom) : null
  });
};
export default ToolbarPortal;