pdfjs-dist
Version:
Generic build of Mozilla's PDF.js library.
353 lines (303 loc) • 11.9 kB
JavaScript
/**
* @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
*/
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.NetworkPdfManager = exports.LocalPdfManager = undefined;
var _regenerator = require('babel-runtime/regenerator');
var _regenerator2 = _interopRequireDefault(_regenerator);
var _createClass = 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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _util = require('../shared/util');
var _chunked_stream = require('./chunked_stream');
var _document = require('./document');
var _stream = require('./stream');
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var BasePdfManager = function () {
function BasePdfManager() {
_classCallCheck(this, BasePdfManager);
if (this.constructor === BasePdfManager) {
(0, _util.unreachable)('Cannot initialize BasePdfManager.');
}
}
_createClass(BasePdfManager, [{
key: 'onLoadedStream',
value: function onLoadedStream() {
(0, _util.unreachable)('Abstract method `onLoadedStream` called');
}
}, {
key: 'ensureDoc',
value: function ensureDoc(prop, args) {
return this.ensure(this.pdfDocument, prop, args);
}
}, {
key: 'ensureXRef',
value: function ensureXRef(prop, args) {
return this.ensure(this.pdfDocument.xref, prop, args);
}
}, {
key: 'ensureCatalog',
value: function ensureCatalog(prop, args) {
return this.ensure(this.pdfDocument.catalog, prop, args);
}
}, {
key: 'getPage',
value: function getPage(pageIndex) {
return this.pdfDocument.getPage(pageIndex);
}
}, {
key: 'cleanup',
value: function cleanup() {
return this.pdfDocument.cleanup();
}
}, {
key: 'ensure',
value: function () {
var _ref = _asyncToGenerator( /*#__PURE__*/_regenerator2.default.mark(function _callee(obj, prop, args) {
return _regenerator2.default.wrap(function _callee$(_context) {
while (1) {
switch (_context.prev = _context.next) {
case 0:
(0, _util.unreachable)('Abstract method `ensure` called');
case 1:
case 'end':
return _context.stop();
}
}
}, _callee, this);
}));
function ensure(_x, _x2, _x3) {
return _ref.apply(this, arguments);
}
return ensure;
}()
}, {
key: 'requestRange',
value: function requestRange(begin, end) {
(0, _util.unreachable)('Abstract method `requestRange` called');
}
}, {
key: 'requestLoadedStream',
value: function requestLoadedStream() {
(0, _util.unreachable)('Abstract method `requestLoadedStream` called');
}
}, {
key: 'sendProgressiveData',
value: function sendProgressiveData(chunk) {
(0, _util.unreachable)('Abstract method `sendProgressiveData` called');
}
}, {
key: 'updatePassword',
value: function updatePassword(password) {
this._password = password;
}
}, {
key: 'terminate',
value: function terminate() {
(0, _util.unreachable)('Abstract method `terminate` called');
}
}, {
key: 'docId',
get: function get() {
return this._docId;
}
}, {
key: 'password',
get: function get() {
return this._password;
}
}, {
key: 'docBaseUrl',
get: function get() {
var docBaseUrl = null;
if (this._docBaseUrl) {
var absoluteUrl = (0, _util.createValidAbsoluteUrl)(this._docBaseUrl);
if (absoluteUrl) {
docBaseUrl = absoluteUrl.href;
} else {
(0, _util.warn)('Invalid absolute docBaseUrl: "' + this._docBaseUrl + '".');
}
}
return (0, _util.shadow)(this, 'docBaseUrl', docBaseUrl);
}
}]);
return BasePdfManager;
}();
var LocalPdfManager = function (_BasePdfManager) {
_inherits(LocalPdfManager, _BasePdfManager);
function LocalPdfManager(docId, data, password, evaluatorOptions, docBaseUrl) {
_classCallCheck(this, LocalPdfManager);
var _this = _possibleConstructorReturn(this, (LocalPdfManager.__proto__ || Object.getPrototypeOf(LocalPdfManager)).call(this));
_this._docId = docId;
_this._password = password;
_this._docBaseUrl = docBaseUrl;
_this.evaluatorOptions = evaluatorOptions;
var stream = new _stream.Stream(data);
_this.pdfDocument = new _document.PDFDocument(_this, stream);
_this._loadedStreamPromise = Promise.resolve(stream);
return _this;
}
_createClass(LocalPdfManager, [{
key: 'ensure',
value: function () {
var _ref2 = _asyncToGenerator( /*#__PURE__*/_regenerator2.default.mark(function _callee2(obj, prop, args) {
var value;
return _regenerator2.default.wrap(function _callee2$(_context2) {
while (1) {
switch (_context2.prev = _context2.next) {
case 0:
value = obj[prop];
if (!(typeof value === 'function')) {
_context2.next = 3;
break;
}
return _context2.abrupt('return', value.apply(obj, args));
case 3:
return _context2.abrupt('return', value);
case 4:
case 'end':
return _context2.stop();
}
}
}, _callee2, this);
}));
function ensure(_x4, _x5, _x6) {
return _ref2.apply(this, arguments);
}
return ensure;
}()
}, {
key: 'requestRange',
value: function requestRange(begin, end) {
return Promise.resolve();
}
}, {
key: 'requestLoadedStream',
value: function requestLoadedStream() {}
}, {
key: 'onLoadedStream',
value: function onLoadedStream() {
return this._loadedStreamPromise;
}
}, {
key: 'terminate',
value: function terminate() {}
}]);
return LocalPdfManager;
}(BasePdfManager);
var NetworkPdfManager = function (_BasePdfManager2) {
_inherits(NetworkPdfManager, _BasePdfManager2);
function NetworkPdfManager(docId, pdfNetworkStream, args, evaluatorOptions, docBaseUrl) {
_classCallCheck(this, NetworkPdfManager);
var _this2 = _possibleConstructorReturn(this, (NetworkPdfManager.__proto__ || Object.getPrototypeOf(NetworkPdfManager)).call(this));
_this2._docId = docId;
_this2._password = args.password;
_this2._docBaseUrl = docBaseUrl;
_this2.msgHandler = args.msgHandler;
_this2.evaluatorOptions = evaluatorOptions;
_this2.streamManager = new _chunked_stream.ChunkedStreamManager(pdfNetworkStream, {
msgHandler: args.msgHandler,
url: args.url,
length: args.length,
disableAutoFetch: args.disableAutoFetch,
rangeChunkSize: args.rangeChunkSize
});
_this2.pdfDocument = new _document.PDFDocument(_this2, _this2.streamManager.getStream());
return _this2;
}
_createClass(NetworkPdfManager, [{
key: 'ensure',
value: function () {
var _ref3 = _asyncToGenerator( /*#__PURE__*/_regenerator2.default.mark(function _callee3(obj, prop, args) {
var value;
return _regenerator2.default.wrap(function _callee3$(_context3) {
while (1) {
switch (_context3.prev = _context3.next) {
case 0:
_context3.prev = 0;
value = obj[prop];
if (!(typeof value === 'function')) {
_context3.next = 4;
break;
}
return _context3.abrupt('return', value.apply(obj, args));
case 4:
return _context3.abrupt('return', value);
case 7:
_context3.prev = 7;
_context3.t0 = _context3['catch'](0);
if (_context3.t0 instanceof _util.MissingDataException) {
_context3.next = 11;
break;
}
throw _context3.t0;
case 11:
_context3.next = 13;
return this.requestRange(_context3.t0.begin, _context3.t0.end);
case 13:
return _context3.abrupt('return', this.ensure(obj, prop, args));
case 14:
case 'end':
return _context3.stop();
}
}
}, _callee3, this, [[0, 7]]);
}));
function ensure(_x7, _x8, _x9) {
return _ref3.apply(this, arguments);
}
return ensure;
}()
}, {
key: 'requestRange',
value: function requestRange(begin, end) {
return this.streamManager.requestRange(begin, end);
}
}, {
key: 'requestLoadedStream',
value: function requestLoadedStream() {
this.streamManager.requestAllChunks();
}
}, {
key: 'sendProgressiveData',
value: function sendProgressiveData(chunk) {
this.streamManager.onReceiveData({ chunk: chunk });
}
}, {
key: 'onLoadedStream',
value: function onLoadedStream() {
return this.streamManager.onLoadedStream();
}
}, {
key: 'terminate',
value: function terminate() {
this.streamManager.abort();
}
}]);
return NetworkPdfManager;
}(BasePdfManager);
exports.LocalPdfManager = LocalPdfManager;
exports.NetworkPdfManager = NetworkPdfManager;