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162 lines
6.7 KiB
JavaScript
162 lines
6.7 KiB
JavaScript
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6 years ago
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/**
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* @licstart The following is the entire license notice for the
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* Javascript code in this page
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*
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* Copyright 2019 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @licend The above is the entire license notice for the
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* Javascript code in this page
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*/
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.PDFViewer = void 0;
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var _base_viewer = require("./base_viewer");
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var _pdf = require("../pdf");
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function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
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function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
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function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
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function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
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function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
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function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
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function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
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function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
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function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
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var PDFViewer =
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/*#__PURE__*/
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function (_BaseViewer) {
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_inherits(PDFViewer, _BaseViewer);
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function PDFViewer() {
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_classCallCheck(this, PDFViewer);
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return _possibleConstructorReturn(this, _getPrototypeOf(PDFViewer).apply(this, arguments));
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}
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_createClass(PDFViewer, [{
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key: "_scrollIntoView",
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value: function _scrollIntoView(_ref) {
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var pageDiv = _ref.pageDiv,
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_ref$pageSpot = _ref.pageSpot,
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pageSpot = _ref$pageSpot === void 0 ? null : _ref$pageSpot,
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_ref$pageNumber = _ref.pageNumber,
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pageNumber = _ref$pageNumber === void 0 ? null : _ref$pageNumber;
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if (!pageSpot && !this.isInPresentationMode) {
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var left = pageDiv.offsetLeft + pageDiv.clientLeft;
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var right = left + pageDiv.clientWidth;
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var _this$container = this.container,
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scrollLeft = _this$container.scrollLeft,
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clientWidth = _this$container.clientWidth;
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if (this._isScrollModeHorizontal || left < scrollLeft || right > scrollLeft + clientWidth) {
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pageSpot = {
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left: 0,
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top: 0
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};
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}
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}
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_get(_getPrototypeOf(PDFViewer.prototype), "_scrollIntoView", this).call(this, {
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pageDiv: pageDiv,
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pageSpot: pageSpot,
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pageNumber: pageNumber
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});
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}
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}, {
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key: "_getVisiblePages",
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value: function _getVisiblePages() {
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if (this.isInPresentationMode) {
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return this._getCurrentVisiblePage();
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}
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return _get(_getPrototypeOf(PDFViewer.prototype), "_getVisiblePages", this).call(this);
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}
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}, {
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key: "_updateHelper",
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value: function _updateHelper(visiblePages) {
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if (this.isInPresentationMode) {
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return;
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}
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var currentId = this._currentPageNumber;
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var stillFullyVisible = false;
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var _iteratorNormalCompletion = true;
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var _didIteratorError = false;
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var _iteratorError = undefined;
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try {
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for (var _iterator = visiblePages[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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var page = _step.value;
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if (page.percent < 100) {
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break;
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}
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if (page.id === currentId) {
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stillFullyVisible = true;
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break;
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}
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}
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} catch (err) {
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_didIteratorError = true;
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_iteratorError = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion && _iterator["return"] != null) {
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_iterator["return"]();
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}
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} finally {
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if (_didIteratorError) {
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throw _iteratorError;
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}
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}
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}
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if (!stillFullyVisible) {
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currentId = visiblePages[0].id;
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}
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this._setCurrentPageNumber(currentId);
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}
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}, {
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key: "_setDocumentViewerElement",
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get: function get() {
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return (0, _pdf.shadow)(this, '_setDocumentViewerElement', this.viewer);
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}
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}]);
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return PDFViewer;
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}(_base_viewer.BaseViewer);
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exports.PDFViewer = PDFViewer;
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