ZenBrowserMirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/zen-browser/pdf.js.git synced 2025-07-08 01:10:08 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Re-factor the idFactory functionality, used in the core/-code, and move the fontID generation into it

Browse source 
Note how the `getFontID`-method in `src/core/fonts.js` is *completely* global, rather than properly tied to the current document. This means that if you repeatedly open and parse/render, and then close, even the *same* PDF document the `fontID`s will still be incremented continuously.

For comparison the `createObjId` method, on `idFactory`, will always create a *consistent* id, assuming of course that the document and its pages are parsed/rendered in the same order.

In order to address this inconsistency, it thus seems reasonable to add a new `createFontId` method on the `idFactory` and use that when obtaining `fontID`s. (When the current `getFontID` method was added the `idFactory` didn't actually exist yet, which explains why the code looks the way it does.)
*Please note:* Since the document id is (still) part of the `loadedName`, it's thus not possible for different documents to have identical font names.
This commit is contained in:
Jonas Jenwald 2020-07-07 16:00:05 +02:00
parent cf8daaf78b
commit 4cc6797f17
5 changed files with 56 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

8
test/unit/document_spec.js
View file

@ -17,20 +17,26 @@ import { createIdFactory } from "./test_utils.js";
describe("document", function () {
describe("Page", function () {
it("should create correct objId using the idFactory", function () {
it("should create correct objId/fontId using the idFactory", function () {
const idFactory1 = createIdFactory(/* pageIndex = */ 0);
const idFactory2 = createIdFactory(/* pageIndex = */ 1);
expect(idFactory1.createObjId()).toEqual("p0_1");
expect(idFactory1.createObjId()).toEqual("p0_2");
expect(idFactory1.createFontId()).toEqual("f1");
expect(idFactory1.createFontId()).toEqual("f2");
expect(idFactory1.getDocId()).toEqual("g_d0");
expect(idFactory2.createObjId()).toEqual("p1_1");
expect(idFactory2.createObjId()).toEqual("p1_2");
expect(idFactory2.createFontId()).toEqual("f1");
expect(idFactory2.createFontId()).toEqual("f2");
expect(idFactory2.getDocId()).toEqual("g_d0");
expect(idFactory1.createObjId()).toEqual("p0_3");
expect(idFactory1.createObjId()).toEqual("p0_4");
expect(idFactory1.createFontId()).toEqual("f3");
expect(idFactory1.createFontId()).toEqual("f4");
expect(idFactory1.getDocId()).toEqual("g_d0");
});
});