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[api-minor] Use the NodeCanvasFactory/NodeCMapReaderFactory classes as defaults in Node.js environments (issue 11900)

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This moves, and slightly simplifies, code that's currently residing in the unit-test utils into the actual library, such that it's bundled with `GENERIC`-builds and used in e.g. the API-code.

As an added bonus, this also brings out-of-the-box support for CMaps in e.g. the Node.js examples.
This commit is contained in:
Jonas Jenwald 2020-06-29 13:18:51 +02:00
parent fe3df495cc
commit 4a7e29865d
10 changed files with 164 additions and 123 deletions
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19
src/display/api.js
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@ -47,6 +47,7 @@ import {
StatTimer,
} from "./display_utils.js";
import { FontFaceObject, FontLoader } from "./font_loader.js";
import { NodeCanvasFactory, NodeCMapReaderFactory } from "./node_utils.js";
import { apiCompatibilityParams } from "./api_compatibility.js";
import { CanvasGraphics } from "./canvas.js";
import { GlobalWorkerOptions } from "./worker_options.js";
@ -59,6 +60,15 @@ import { WebGLContext } from "./webgl.js";
const DEFAULT_RANGE_CHUNK_SIZE = 65536; // 2^16 = 65536
const RENDERING_CANCELLED_TIMEOUT = 100; // ms
const DefaultCanvasFactory =
(typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) && isNodeJS
? NodeCanvasFactory
: DOMCanvasFactory;
const DefaultCMapReaderFactory =
(typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) && isNodeJS
? NodeCMapReaderFactory
: DOMCMapReaderFactory;
/**
* @typedef {function} IPDFStreamFactory
* @param {DocumentInitParameters} params - The document initialization
@ -242,7 +252,8 @@ function getDocument(src) {
}
params.rangeChunkSize = params.rangeChunkSize || DEFAULT_RANGE_CHUNK_SIZE;
params.CMapReaderFactory = params.CMapReaderFactory || DOMCMapReaderFactory;
params.CMapReaderFactory =
params.CMapReaderFactory || DefaultCMapReaderFactory;
params.ignoreErrors = params.stopAtErrors !== true;
params.fontExtraProperties = params.fontExtraProperties === true;
params.pdfBug = params.pdfBug === true;
@ -863,9 +874,9 @@ class PDFDocumentProxy {
* just before viewport transform.
* @property {Object} [imageLayer] - An object that has beginLayout,
* endLayout and appendImage functions.
* @property {Object} [canvasFactory] - The factory that will be used
* @property {Object} [canvasFactory] - The factory instance that will be used
* when creating canvases. The default value is
* {DOMCanvasFactory}.
* {new DOMCanvasFactory()}.
* @property {Object} [background] - Background to use for the canvas.
* Can use any valid canvas.fillStyle: A DOMString parsed as
* CSS <color> value, a CanvasGradient object (a linear or
@ -1015,7 +1026,7 @@ class PDFPageProxy {
intentState.streamReaderCancelTimeout = null;
}
const canvasFactoryInstance = canvasFactory || new DOMCanvasFactory();
const canvasFactoryInstance = canvasFactory || new DefaultCanvasFactory();
const webGLContext = new WebGLContext({
enable: enableWebGL,
});