Beanz/pdf.js
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Add a wrapper for the new xref in order to be able to get some values from cloned dictionaries

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This commit is contained in:
Calixte Denizet 2025-11-09 15:28:43 +01:00
parent 37f4712f7e
commit 65881f0e21
1 changed files with 13 additions and 0 deletions
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13
src/core/editor/pdf_editor.js
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@ -52,6 +52,16 @@ class DocumentData {
}
}
class XRefWrapper {
constructor(entries) {
this.entries = entries;
}
fetch(ref) {
return ref instanceof Ref ? this.entries[ref.num] : ref;
}
}
class PDFEditor {
constructor({ useObjectStreams = true, title = "", author = "" } = {}) {
this.hasSingleFile = false;
@ -59,6 +69,7 @@ class PDFEditor {
this.oldPages = [];
this.newPages = [];
this.xref = [null];
this.xrefWrapper = new XRefWrapper(this.xref);
this.newRefCount = 1;
[this.rootRef, this.rootDict] = this.newDict;
[this.infoRef, this.infoDict] = this.newDict;
@ -173,9 +184,11 @@ class PDFEditor {
let dict;
if (obj instanceof BaseStream) {
({ dict } = obj = obj.getOriginalStream().clone());
dict.xref = this.xrefWrapper;
} else if (obj instanceof Dict) {
if (mustClone) {
obj = obj.clone();
obj.xref = this.xrefWrapper;
}
dict = obj;
}