pdf.js/src/shared/compatibility.js
Jonas Jenwald cf0369d622 Polyfill Path2D in Node.js environments
Until just recently the only existing `Path2D` polyfill didn't have support for Node.js and/or the `node-canvas` package. Given that this was just fixed, in the latest version, we can now finally remove our inline-checks at the relevant call-sites; please also see https://github.com/nilzona/path2d-polyfill#usage-with-node-canvas
2023-01-28 18:28:22 +01:00

99 lines
2.7 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";
// Support: Node.js<16.0.0
(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<16.0.0
(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__("canvas").DOMMatrix;
})();
// Support: Node.js
(function checkPath2D() {
if (globalThis.Path2D || !isNodeJS) {
return;
}
const { CanvasRenderingContext2D } = __non_webpack_require__("canvas");
const { polyfillPath2D } = __non_webpack_require__("path2d-polyfill");
globalThis.CanvasRenderingContext2D = CanvasRenderingContext2D;
polyfillPath2D(globalThis);
})();
// Support: Node.js
(function checkReadableStream() {
if (globalThis.ReadableStream || !isNodeJS) {
return;
}
globalThis.ReadableStream = __non_webpack_require__(
"web-streams-polyfill/dist/ponyfill.js"
).ReadableStream;
})();
// Support: Firefox<90, Chrome<92, Safari<15.4, Node.js<16.6.0
(function checkArrayAt() {
if (Array.prototype.at) {
return;
}
require("core-js/es/array/at.js");
})();
// Support: Firefox<90, Chrome<92, Safari<15.4, Node.js<16.6.0
(function checkTypedArrayAt() {
if (Uint8Array.prototype.at) {
return;
}
require("core-js/es/typed-array/at.js");
})();
// 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");
})();