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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 2018 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.ViewHistory = void 0;
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var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
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function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
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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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var DEFAULT_VIEW_HISTORY_CACHE_SIZE = 20;
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var ViewHistory =
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/*#__PURE__*/
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function () {
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function ViewHistory(fingerprint) {
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var _this = this;
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var cacheSize = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : DEFAULT_VIEW_HISTORY_CACHE_SIZE;
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_classCallCheck(this, ViewHistory);
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this.fingerprint = fingerprint;
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this.cacheSize = cacheSize;
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this._initializedPromise = this._readFromStorage().then(function (databaseStr) {
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var database = JSON.parse(databaseStr || '{}');
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if (!('files' in database)) {
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database.files = [];
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} else {
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while (database.files.length >= _this.cacheSize) {
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database.files.shift();
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}
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}
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var index = -1;
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for (var i = 0, length = database.files.length; i < length; i++) {
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var branch = database.files[i];
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if (branch.fingerprint === _this.fingerprint) {
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index = i;
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break;
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}
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}
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if (index === -1) {
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index = database.files.push({
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fingerprint: _this.fingerprint
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}) - 1;
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}
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_this.file = database.files[index];
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_this.database = database;
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});
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}
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_createClass(ViewHistory, [{
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key: "_writeToStorage",
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value: function () {
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var _writeToStorage2 = _asyncToGenerator(
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/*#__PURE__*/
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_regenerator.default.mark(function _callee() {
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var databaseStr;
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return _regenerator.default.wrap(function _callee$(_context) {
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while (1) {
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switch (_context.prev = _context.next) {
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case 0:
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databaseStr = JSON.stringify(this.database);
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localStorage.setItem('pdfjs.history', databaseStr);
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case 2:
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case "end":
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return _context.stop();
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}
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}
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}, _callee, this);
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}));
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function _writeToStorage() {
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return _writeToStorage2.apply(this, arguments);
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}
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return _writeToStorage;
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}()
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}, {
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key: "_readFromStorage",
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value: function () {
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var _readFromStorage2 = _asyncToGenerator(
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/*#__PURE__*/
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_regenerator.default.mark(function _callee2() {
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return _regenerator.default.wrap(function _callee2$(_context2) {
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while (1) {
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switch (_context2.prev = _context2.next) {
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case 0:
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return _context2.abrupt("return", localStorage.getItem('pdfjs.history'));
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case 1:
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case "end":
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return _context2.stop();
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}
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}
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}, _callee2, this);
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}));
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function _readFromStorage() {
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return _readFromStorage2.apply(this, arguments);
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}
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return _readFromStorage;
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}()
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}, {
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key: "set",
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value: function () {
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var _set = _asyncToGenerator(
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/*#__PURE__*/
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_regenerator.default.mark(function _callee3(name, val) {
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return _regenerator.default.wrap(function _callee3$(_context3) {
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while (1) {
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switch (_context3.prev = _context3.next) {
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case 0:
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_context3.next = 2;
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return this._initializedPromise;
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case 2:
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this.file[name] = val;
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return _context3.abrupt("return", this._writeToStorage());
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case 4:
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case "end":
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return _context3.stop();
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}
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}
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}, _callee3, this);
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}));
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function set(_x, _x2) {
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return _set.apply(this, arguments);
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}
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return set;
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}()
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}, {
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key: "setMultiple",
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value: function () {
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var _setMultiple = _asyncToGenerator(
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/*#__PURE__*/
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_regenerator.default.mark(function _callee4(properties) {
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var name;
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return _regenerator.default.wrap(function _callee4$(_context4) {
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while (1) {
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switch (_context4.prev = _context4.next) {
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case 0:
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_context4.next = 2;
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return this._initializedPromise;
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case 2:
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for (name in properties) {
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this.file[name] = properties[name];
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}
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return _context4.abrupt("return", this._writeToStorage());
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case 4:
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case "end":
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return _context4.stop();
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}
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}
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}, _callee4, this);
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}));
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function setMultiple(_x3) {
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return _setMultiple.apply(this, arguments);
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}
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return setMultiple;
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}()
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}, {
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key: "get",
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value: function () {
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var _get = _asyncToGenerator(
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/*#__PURE__*/
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_regenerator.default.mark(function _callee5(name, defaultValue) {
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var val;
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return _regenerator.default.wrap(function _callee5$(_context5) {
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while (1) {
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switch (_context5.prev = _context5.next) {
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case 0:
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_context5.next = 2;
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return this._initializedPromise;
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case 2:
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val = this.file[name];
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return _context5.abrupt("return", val !== undefined ? val : defaultValue);
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case 4:
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case "end":
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return _context5.stop();
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}
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}
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}, _callee5, this);
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}));
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function get(_x4, _x5) {
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return _get.apply(this, arguments);
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}
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return get;
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}()
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}, {
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key: "getMultiple",
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value: function () {
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var _getMultiple = _asyncToGenerator(
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/*#__PURE__*/
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_regenerator.default.mark(function _callee6(properties) {
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var values, name, val;
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return _regenerator.default.wrap(function _callee6$(_context6) {
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while (1) {
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switch (_context6.prev = _context6.next) {
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case 0:
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_context6.next = 2;
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return this._initializedPromise;
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case 2:
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values = Object.create(null);
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for (name in properties) {
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val = this.file[name];
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values[name] = val !== undefined ? val : properties[name];
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}
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return _context6.abrupt("return", values);
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case 5:
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case "end":
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return _context6.stop();
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}
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}
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}, _callee6, this);
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}));
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function getMultiple(_x6) {
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return _getMultiple.apply(this, arguments);
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}
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return getMultiple;
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}()
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}]);
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return ViewHistory;
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}();
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exports.ViewHistory = ViewHistory;
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