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Conditionally bundle gulp image_decoders-specific code in src/core/jbig2.js (PR 9729 follow-up)

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This method/function was added only for the `gulp image_decoders`-builds, and is completely unused elsewhere (e.g. in the Firefox PDF Viewer).
While this only reduces the size of the *built* `pdf.worker.js` file by a little over 1 kB, it can't hurt to remove completely unused code from the "normal" builds.
This commit is contained in:
Jonas Jenwald 2022-06-05 15:35:04 +02:00
parent 87fdb0eb42
commit e82ad79eb9
1 changed files with 7 additions and 2 deletions
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9
src/core/jbig2.js
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@ -1473,8 +1473,7 @@ function processSegment(segment, visitor) {
break; break;
default: default:
throw new Jbig2Error( throw new Jbig2Error(
`segment type ${header.typeName}(${header.type})` + `segment type ${header.typeName}(${header.type}) is not implemented`
" is not implemented"
); );
} }
const callbackName = "on" + header.typeName; const callbackName = "on" + header.typeName;
@ -1500,6 +1499,9 @@ function parseJbig2Chunks(chunks) {
} }
function parseJbig2(data) { function parseJbig2(data) {
if (typeof PDFJSDev === "undefined" || !PDFJSDev.test("IMAGE_DECODERS")) {
throw new Error("Not implemented: parseJbig2");
}
const end = data.length; const end = data.length;
let position = 0; let position = 0;
@ -2560,6 +2562,9 @@ class Jbig2Image {
} }
parse(data) { parse(data) {
if (typeof PDFJSDev === "undefined" || !PDFJSDev.test("IMAGE_DECODERS")) {
throw new Error("Not implemented: Jbig2Image.parse");
}
const { imgData, width, height } = parseJbig2(data); const { imgData, width, height } = parseJbig2(data);
this.width = width; this.width = width;
this.height = height; this.height = height;