mirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2025-04-26 10:08:06 +02:00
Code Activity

Compress the data when saving annotions

Browse source 
CompressionStream API has been added in Firefox 113
(see https://bugzilla.mozilla.org/show_bug.cgi?id=1823619)
hence we can use it to compress the streams with added/modified
annotations.
This commit is contained in:
Calixte Denizet 2023-04-27 21:50:27 +02:00
parent 8f2d8f62f3
commit 2486536843
8 changed files with 156 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/core/annotation.js
View file

@ -273,7 +273,7 @@ class AnnotationFactory {
baseFont.set("Encoding", Name.get("WinAnsiEncoding"));
const buffer = [];
baseFontRef = xref.getNewTemporaryRef();
writeObject(baseFontRef, baseFont, buffer, null);
await writeObject(baseFontRef, baseFont, buffer, null);
dependencies.push({ ref: baseFontRef, data: buffer.join("") });
}
promises.push(
@ -1479,7 +1479,7 @@ class MarkupAnnotation extends Annotation {
const transform = xref.encrypt
? xref.encrypt.createCipherTransform(apRef.num, apRef.gen)
: null;
writeObject(apRef, ap, buffer, transform);
await writeObject(apRef, ap, buffer, transform);
dependencies.push({ ref: apRef, data: buffer.join("") });
} else {
annotationDict = this.createNewDict(annotation, xref, {});
@ -1489,7 +1489,7 @@ class MarkupAnnotation extends Annotation {
const transform = xref.encrypt
? xref.encrypt.createCipherTransform(annotationRef.num, annotationRef.gen)
: null;
writeObject(annotationRef, annotationDict, buffer, transform);
await writeObject(annotationRef, annotationDict, buffer, transform);
return { ref: annotationRef, data: buffer.join("") };
}
@ -1922,7 +1922,7 @@ class WidgetAnnotation extends Annotation {
appearanceDict.set("Matrix", rotationMatrix);
}
writeObject(newRef, appearanceStream, buffer, newTransform);
await writeObject(newRef, appearanceStream, buffer, newTransform);
changes.push(
// data for the new AP
@ -1937,7 +1937,7 @@ class WidgetAnnotation extends Annotation {
}
dict.set("M", `D:${getModificationDate()}`);
writeObject(this.ref, dict, buffer, originalTransform);
await writeObject(this.ref, dict, buffer, originalTransform);
changes[0].data = buffer.join("");
@ -2814,7 +2814,7 @@ class ButtonWidgetAnnotation extends WidgetAnnotation {
}
const buffer = [`${this.ref.num} ${this.ref.gen} obj\n`];
writeDict(dict, buffer, originalTransform);
await writeDict(dict, buffer, originalTransform);
buffer.push("\nendobj\n");
return [{ ref: this.ref, data: buffer.join(""), xfa }];
@ -2873,7 +2873,7 @@ class ButtonWidgetAnnotation extends WidgetAnnotation {
}
parent.set("V", name);
parentBuffer = [`${this.parent.num} ${this.parent.gen} obj\n`];
writeDict(parent, parentBuffer, parentTransform);
await writeDict(parent, parentBuffer, parentTransform);
parentBuffer.push("\nendobj\n");
} else if (this.parent instanceof Dict) {
this.parent.set("V", name);
@ -2897,7 +2897,7 @@ class ButtonWidgetAnnotation extends WidgetAnnotation {
}
const buffer = [`${this.ref.num} ${this.ref.gen} obj\n`];
writeDict(dict, buffer, originalTransform);
await writeDict(dict, buffer, originalTransform);
buffer.push("\nendobj\n");
const newRefs = [{ ref: this.ref, data: buffer.join(""), xfa }];