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api/page: printToPDF: provide margins option via object and fix

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This commit is contained in:
CanadaHonk 2023-01-31 09:11:08 +00:00
parent 7f22aa55b0
commit 2d1c049a6d
2 changed files with 38 additions and 22 deletions
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42
gluon.d.ts vendored
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@ -91,28 +91,34 @@ type PrintToPDFOptions = {
paperHeight?: number,
/**
* Top margin in inches.
* @default 0.4
* Set the margins of the PDF (inches).
* @default 0.4 for all
*/
marginTop?: number,
margins?: {
/**
* Top margin in inches.
* @default 0.4 (1cm)
*/
top?: number,
/**
* Bottom margin in inches.
* @default 0.4
*/
marginBottom?: number,
/**
* Bottom margin in inches.
* @default 0.4 (1cm)
*/
bottom?: number,
/**
* Left margin in inches.
* @default 0.4
*/
marginLeft?: number,
/**
* Left margin in inches.
* @default 0.4 (1cm)
*/
left?: number,
/**
* Right margin in inches.
* @default 0.4
*/
marginRight?: number,
/**
* Right margin in inches.
* @default 0.4 (1cm)
*/
right?: number
},
/**
* Paper ranges to print, one based, (eg '1-5, 8, 11-13').

18
src/launcher/inject.js
View File

@ -118,19 +118,29 @@ export default async (CDP, proc, injectionType = 'browser', { dataPath, browserN
},
printToPDF: async (...args) => {
let path, options;
let path, options = {};
if (args.length === 1) {
if (typeof args[0] === 'string') path = args[0];
else options = args[0];
else options = { ...args[0] };
}
if (args.length === 2) {
[ path, options ] = args;
path = args[0];
options = { ...args[1] };
}
if (options.margins) {
const { top, bottom, left, right } = options.margins;
if (top) options.marginTop = top;
if (bottom) options.marginBottom = bottom;
if (left) options.marginLeft = left;
if (right) options.marginRight = right;
const { data } = await CDP.send('Page.printToPDF', options);
delete options.margins;
}
const { data } = await Window.cdp.send('Page.printToPDF', options);
const buffer = Buffer.from(data, 'base64');
if (path) await writeFile(path, buffer);