Generic build of PDF.js library.
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/**
* @licstart The following is the entire license notice for the
* Javascript code in this page
*
* Copyright 2018 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @licend The above is the entire license notice for the
* Javascript code in this page
*/
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.ViewHistory = void 0;
var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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); } }
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); }); }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
var DEFAULT_VIEW_HISTORY_CACHE_SIZE = 20;
var ViewHistory =
/*#__PURE__*/
function () {
function ViewHistory(fingerprint) {
var _this = this;
var cacheSize = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : DEFAULT_VIEW_HISTORY_CACHE_SIZE;
_classCallCheck(this, ViewHistory);
this.fingerprint = fingerprint;
this.cacheSize = cacheSize;
this._initializedPromise = this._readFromStorage().then(function (databaseStr) {
var database = JSON.parse(databaseStr || '{}');
if (!('files' in database)) {
database.files = [];
} else {
while (database.files.length >= _this.cacheSize) {
database.files.shift();
}
}
var index = -1;
for (var i = 0, length = database.files.length; i < length; i++) {
var branch = database.files[i];
if (branch.fingerprint === _this.fingerprint) {
index = i;
break;
}
}
if (index === -1) {
index = database.files.push({
fingerprint: _this.fingerprint
}) - 1;
}
_this.file = database.files[index];
_this.database = database;
});
}
_createClass(ViewHistory, [{
key: "_writeToStorage",
value: function () {
var _writeToStorage2 = _asyncToGenerator(
/*#__PURE__*/
_regenerator.default.mark(function _callee() {
var databaseStr;
return _regenerator.default.wrap(function _callee$(_context) {
while (1) {
switch (_context.prev = _context.next) {
case 0:
databaseStr = JSON.stringify(this.database);
localStorage.setItem('pdfjs.history', databaseStr);
case 2:
case "end":
return _context.stop();
}
}
}, _callee, this);
}));
function _writeToStorage() {
return _writeToStorage2.apply(this, arguments);
}
return _writeToStorage;
}()
}, {
key: "_readFromStorage",
value: function () {
var _readFromStorage2 = _asyncToGenerator(
/*#__PURE__*/
_regenerator.default.mark(function _callee2() {
return _regenerator.default.wrap(function _callee2$(_context2) {
while (1) {
switch (_context2.prev = _context2.next) {
case 0:
return _context2.abrupt("return", localStorage.getItem('pdfjs.history'));
case 1:
case "end":
return _context2.stop();
}
}
}, _callee2, this);
}));
function _readFromStorage() {
return _readFromStorage2.apply(this, arguments);
}
return _readFromStorage;
}()
}, {
key: "set",
value: function () {
var _set = _asyncToGenerator(
/*#__PURE__*/
_regenerator.default.mark(function _callee3(name, val) {
return _regenerator.default.wrap(function _callee3$(_context3) {
while (1) {
switch (_context3.prev = _context3.next) {
case 0:
_context3.next = 2;
return this._initializedPromise;
case 2:
this.file[name] = val;
return _context3.abrupt("return", this._writeToStorage());
case 4:
case "end":
return _context3.stop();
}
}
}, _callee3, this);
}));
function set(_x, _x2) {
return _set.apply(this, arguments);
}
return set;
}()
}, {
key: "setMultiple",
value: function () {
var _setMultiple = _asyncToGenerator(
/*#__PURE__*/
_regenerator.default.mark(function _callee4(properties) {
var name;
return _regenerator.default.wrap(function _callee4$(_context4) {
while (1) {
switch (_context4.prev = _context4.next) {
case 0:
_context4.next = 2;
return this._initializedPromise;
case 2:
for (name in properties) {
this.file[name] = properties[name];
}
return _context4.abrupt("return", this._writeToStorage());
case 4:
case "end":
return _context4.stop();
}
}
}, _callee4, this);
}));
function setMultiple(_x3) {
return _setMultiple.apply(this, arguments);
}
return setMultiple;
}()
}, {
key: "get",
value: function () {
var _get = _asyncToGenerator(
/*#__PURE__*/
_regenerator.default.mark(function _callee5(name, defaultValue) {
var val;
return _regenerator.default.wrap(function _callee5$(_context5) {
while (1) {
switch (_context5.prev = _context5.next) {
case 0:
_context5.next = 2;
return this._initializedPromise;
case 2:
val = this.file[name];
return _context5.abrupt("return", val !== undefined ? val : defaultValue);
case 4:
case "end":
return _context5.stop();
}
}
}, _callee5, this);
}));
function get(_x4, _x5) {
return _get.apply(this, arguments);
}
return get;
}()
}, {
key: "getMultiple",
value: function () {
var _getMultiple = _asyncToGenerator(
/*#__PURE__*/
_regenerator.default.mark(function _callee6(properties) {
var values, name, val;
return _regenerator.default.wrap(function _callee6$(_context6) {
while (1) {
switch (_context6.prev = _context6.next) {
case 0:
_context6.next = 2;
return this._initializedPromise;
case 2:
values = Object.create(null);
for (name in properties) {
val = this.file[name];
values[name] = val !== undefined ? val : properties[name];
}
return _context6.abrupt("return", values);
case 5:
case "end":
return _context6.stop();
}
}
}, _callee6, this);
}));
function getMultiple(_x6) {
return _getMultiple.apply(this, arguments);
}
return getMultiple;
}()
}]);
return ViewHistory;
}();
exports.ViewHistory = ViewHistory;