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Merge pull request #13021 from Snuffleupagus/createObjectURL-rm-shadow

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Remove the, strictly unnecessary, closure and variable shadowing from `createObjectURL`
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Tim van der Meij 2021-02-25 23:35:17 +01:00 committed by GitHub
commit 061637d3f4
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 22 additions and 23 deletions
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39
src/shared/util.js
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@ -940,32 +940,27 @@ function createPromiseCapability() {
return capability; return capability;
} }
const createObjectURL = (function createObjectURLClosure() { function createObjectURL(data, contentType = "", forceDataSchema = false) {
if (URL.createObjectURL && !forceDataSchema) {
return URL.createObjectURL(new Blob([data], { type: contentType }));
}
// Blob/createObjectURL is not available, falling back to data schema. // Blob/createObjectURL is not available, falling back to data schema.
const digits = const digits =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
// eslint-disable-next-line no-shadow let buffer = `data:${contentType};base64,`;
return function createObjectURL(data, contentType, forceDataSchema = false) { for (let i = 0, ii = data.length; i < ii; i += 3) {
if (!forceDataSchema && URL.createObjectURL) { const b1 = data[i] & 0xff;
const blob = new Blob([data], { type: contentType }); const b2 = data[i + 1] & 0xff;
return URL.createObjectURL(blob); const b3 = data[i + 2] & 0xff;
} const d1 = b1 >> 2,
d2 = ((b1 & 3) << 4) | (b2 >> 4);
let buffer = `data:${contentType};base64,`; const d3 = i + 1 < ii ? ((b2 & 0xf) << 2) | (b3 >> 6) : 64;
for (let i = 0, ii = data.length; i < ii; i += 3) { const d4 = i + 2 < ii ? b3 & 0x3f : 64;
const b1 = data[i] & 0xff; buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
const b2 = data[i + 1] & 0xff; }
const b3 = data[i + 2] & 0xff; return buffer;
const d1 = b1 >> 2, }
d2 = ((b1 & 3) << 4) | (b2 >> 4);
const d3 = i + 1 < ii ? ((b2 & 0xf) << 2) | (b3 >> 6) : 64;
const d4 = i + 2 < ii ? b3 & 0x3f : 64;
buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
}
return buffer;
};
})();
export { export {
AbortException, AbortException,

6
web/pdf_page_view.js
View File

@ -701,7 +701,11 @@ class PDFPageView {
const actualSizeViewport = this.viewport.clone({ scale: CSS_UNITS }); const actualSizeViewport = this.viewport.clone({ scale: CSS_UNITS });
const promise = pdfPage.getOperatorList().then(opList => { const promise = pdfPage.getOperatorList().then(opList => {
ensureNotCancelled(); ensureNotCancelled();
const svgGfx = new SVGGraphics(pdfPage.commonObjs, pdfPage.objs); const svgGfx = new SVGGraphics(
pdfPage.commonObjs,
pdfPage.objs,
/* forceDataSchema = */ viewerCompatibilityParams.disableCreateObjectURL
);
return svgGfx.getSVG(opList, actualSizeViewport).then(svg => { return svgGfx.getSVG(opList, actualSizeViewport).then(svg => {
ensureNotCancelled(); ensureNotCancelled();
this.svg = svg; this.svg = svg;