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XFA -- Load fonts permanently from the pdf

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- Different fonts can be used in xfa and some of them are embedded in the pdf.
  - Load all the fonts in window.document.

Update src/core/document.js

Co-authored-by: Jonas Jenwald <jonas.jenwald@gmail.com>

Update src/core/worker.js

Co-authored-by: Jonas Jenwald <jonas.jenwald@gmail.com>
This commit is contained in:
Calixte Denizet 2021-03-26 09:28:18 +01:00
parent 6cf3070008
commit 7e9579045f
8 changed files with 318 additions and 21 deletions
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28
src/display/font_loader.js
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@ -370,7 +370,22 @@ class FontFaceObject {
if (!this.data || this.disableFontFace) {
return null;
}
const nativeFontFace = new FontFace(this.loadedName, this.data, {});
let nativeFontFace;
if (!this.cssFontInfo) {
nativeFontFace = new FontFace(this.loadedName, this.data, {});
} else {
const css = {
weight: this.cssFontInfo.fontWeight,
};
if (this.cssFontInfo.italicAngle) {
css.style = `oblique ${this.cssFontInfo.italicAngle}deg`;
}
nativeFontFace = new FontFace(
this.cssFontInfo.fontFamily,
this.data,
css
);
}
if (this.fontRegistry) {
this.fontRegistry.registerFont(this);
@ -385,7 +400,16 @@ class FontFaceObject {
const data = bytesToString(new Uint8Array(this.data));
// Add the @font-face rule to the document.
const url = `url(data:${this.mimetype};base64,${btoa(data)});`;
const rule = `@font-face {font-family:"${this.loadedName}";src:${url}}`;
let rule;
if (!this.cssFontInfo) {
rule = `@font-face {font-family:"${this.loadedName}";src:${url}}`;
} else {
let css = `font-weight: ${this.cssFontInfo.fontWeight};`;
if (this.cssFontInfo.italicAngle) {
css += `font-style: oblique ${this.cssFontInfo.italicAngle}deg;`;
}
rule = `@font-face {font-family:"${this.cssFontInfo.fontFamily}";${css}src:${url}}`;
}
if (this.fontRegistry) {
this.fontRegistry.registerFont(this, url);