Sakurai/pdf.js
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Include the document-id in the SVG-filter names (PR 16062 follow-up)

Browse Source 
In the general PDF.js library multiple PDF documents may be opened on the same web-page, which is why we many years ago started using document-specific identifiers to prevent issues with global data such e.g. with fonts.
Hence we need to treat the identifiers generated by the `FilterFactory` in the same way, since the SVG-filters for two separate PDF documents may otherwise get identical ids.
This commit is contained in:
Jonas Jenwald 2023-03-09 15:27:57 +01:00
parent a0ef5a4ae1
commit 92296fa6a1
2 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/display/api.js
View File

@ -269,6 +269,7 @@ function getDocument(src) {
);
}
const task = new PDFDocumentLoadingTask();
const { docId } = task;
const url = src.url ? getUrlProp(src.url) : null;
const data = src.data ? getDataProp(src.data) : null;
@ -339,7 +340,7 @@ function getDocument(src) {
const canvasFactory =
src.canvasFactory || new DefaultCanvasFactory({ ownerDocument });
const filterFactory =
src.filterFactory || new FilterFactory({ ownerDocument });
src.filterFactory || new FilterFactory({ docId, ownerDocument });
// Parameters only intended for development/testing purposes.
const styleElement =
@ -378,7 +379,6 @@ function getDocument(src) {
: new PDFWorker(workerParams);
task._worker = worker;
}
const docId = task.docId;
const fetchDocParams = {
docId,

7
src/display/display_utils.js
View File

@ -53,11 +53,14 @@ class FilterFactory {
#_defs;
#docId;
#document;
#id = 0;
constructor({ ownerDocument = globalThis.document } = {}) {
constructor({ docId, ownerDocument = globalThis.document } = {}) {
this.#docId = docId;
this.#document = ownerDocument;
}
@ -124,7 +127,7 @@ class FilterFactory {
// We create a SVG filter: feComponentTransferElement
// https://www.w3.org/TR/SVG11/filters.html#feComponentTransferElement
const id = `transfer_map_${this.#id++}`;
const id = `g_${this.#docId}_transfer_map_${this.#id++}`;
const url = `url(#${id})`;
this.#cache.set(maps, url);
this.#cache.set(key, url);