157a71d404
According to the MDN compatibility data, see https://developer.mozilla.org/en-US/docs/Web/API/DOMMatrix/DOMMatrix#browser_compatibility, all browsers that we support have native `DOMMatrix` implementations (since quite some time too). Hence Node.js is the only environment that lack `DOMMatrix` support, which probably isn't that surprising given that it's browser functionality. While the `DOMMatrix` polyfill isn't that large, it nonetheless seems completely unnecessary to bundle it in the `legacy` builds when it's not needed in browsers. However, we can avoid that by simply listing `dommatrix` as a dependency for the `pdfjs-dist` library.
96 lines
3.0 KiB
JavaScript
96 lines
3.0 KiB
JavaScript
/* Copyright 2017 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.
|
|
*/
|
|
/* globals __non_webpack_require__ */
|
|
|
|
import { isNodeJS } from "./is_node.js";
|
|
|
|
// Skip compatibility checks for modern builds and if we already ran the module.
|
|
if (
|
|
(typeof PDFJSDev === "undefined" || !PDFJSDev.test("SKIP_BABEL")) &&
|
|
!globalThis._pdfjsCompatibilityChecked
|
|
) {
|
|
globalThis._pdfjsCompatibilityChecked = true;
|
|
|
|
// Support: Node.js
|
|
(function checkNodeBtoa() {
|
|
if (globalThis.btoa || !isNodeJS) {
|
|
return;
|
|
}
|
|
globalThis.btoa = function (chars) {
|
|
// eslint-disable-next-line no-undef
|
|
return Buffer.from(chars, "binary").toString("base64");
|
|
};
|
|
})();
|
|
|
|
// Support: Node.js
|
|
(function checkNodeAtob() {
|
|
if (globalThis.atob || !isNodeJS) {
|
|
return;
|
|
}
|
|
globalThis.atob = function (input) {
|
|
// eslint-disable-next-line no-undef
|
|
return Buffer.from(input, "base64").toString("binary");
|
|
};
|
|
})();
|
|
|
|
// Support: Node.js
|
|
(function checkDOMMatrix() {
|
|
if (globalThis.DOMMatrix || !isNodeJS) {
|
|
return;
|
|
}
|
|
globalThis.DOMMatrix = __non_webpack_require__(
|
|
"dommatrix/dist/dommatrix.js"
|
|
);
|
|
})();
|
|
|
|
// Provides support for *recent* additions to the Promise specification,
|
|
// however basic Promise support is assumed to be available natively.
|
|
// Support: Firefox<71, Chrome<76, Safari<13, Node.js<12.9.0
|
|
(function checkPromise() {
|
|
if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("IMAGE_DECODERS")) {
|
|
// The current image decoders are synchronous, hence `Promise` shouldn't
|
|
// need to be polyfilled for the IMAGE_DECODERS build target.
|
|
return;
|
|
}
|
|
if (globalThis.Promise.allSettled) {
|
|
return;
|
|
}
|
|
globalThis.Promise = require("core-js/es/promise/index.js");
|
|
})();
|
|
|
|
// Support: Node.js
|
|
(function checkReadableStream() {
|
|
if (globalThis.ReadableStream || !isNodeJS) {
|
|
return;
|
|
}
|
|
globalThis.ReadableStream = __non_webpack_require__(
|
|
"web-streams-polyfill/dist/ponyfill.js"
|
|
).ReadableStream;
|
|
})();
|
|
|
|
// Support: Firefox<94, Chrome<98, Safari<15.4, Node.js<17.0.0
|
|
(function checkStructuredClone() {
|
|
if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("IMAGE_DECODERS")) {
|
|
// The current image decoders are synchronous, hence `structuredClone`
|
|
// shouldn't need to be polyfilled for the IMAGE_DECODERS build target.
|
|
return;
|
|
}
|
|
if (globalThis.structuredClone) {
|
|
return;
|
|
}
|
|
require("core-js/web/structured-clone.js");
|
|
})();
|
|
}
|