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Merge pull request #9931 from Snuffleupagus/refactor-getPage

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Refactor `getPage` (in the worker), and attempt to use the `Linearization` dictionary to lookup the first Page
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Tim van der Meij 2018-07-29 19:33:46 +02:00 • committed by GitHub
commit f45450bd78
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2 changed files with 51 additions and 37 deletions
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17
src/core/obj.js
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@ -29,7 +29,7 @@ import { CipherTransformFactory } from './crypto';
import { ColorSpace } from './colorspace';
var Catalog = (function CatalogClosure() {
function Catalog(pdfManager, xref, pageFactory) {
function Catalog(pdfManager, xref) {
this.pdfManager = pdfManager;
this.xref = xref;
this.catDict = xref.getCatalogObj();
@ -40,9 +40,6 @@ var Catalog = (function CatalogClosure() {
this.fontCache = new RefSetCache();
this.builtInCMapCache = new Map();
this.pageKidsCountCache = new RefSetCache();
// TODO refactor to move getPage() to the PDFDocument.
this.pageFactory = pageFactory;
this.pagePromises = [];
}
Catalog.prototype = {
@ -453,18 +450,6 @@ var Catalog = (function CatalogClosure() {
});
},
getPage: function Catalog_getPage(pageIndex) {
if (!(pageIndex in this.pagePromises)) {
this.pagePromises[pageIndex] = this.getPageDict(pageIndex).then(
([dict, ref]) => {
return this.pageFactory.createPage(pageIndex, dict, ref,
this.fontCache,
this.builtInCMapCache);
});
}
return this.pagePromises[pageIndex];
},
getPageDict: function Catalog_getPageDict(pageIndex) {
var capability = createPromiseCapability();
var nodesToVisit = [this.catDict.getRaw('Pages')];