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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* global jsPDF */ | ||
| import 'jspdf'; | ||
|
|
||
| export const fit = (rect, bounds) => { | ||
| const rectRatio = rect.width / rect.height, | ||
| boundsRatio = bounds.width / bounds.height; | ||
|
|
||
| return rectRatio > boundsRatio | ||
| ? { | ||
| width: bounds.width, | ||
| height: rect.height * (bounds.width / rect.width) | ||
| } | ||
| : { | ||
| width: rect.height * (bounds.width / rect.width), | ||
| height: bounds.height | ||
| }; | ||
| }; | ||
|
|
||
| export const create = async (urls, credentials) => { | ||
| const options = { | ||
| credentials: credentials ? 'include' : 'omit' | ||
| }, | ||
| responses = (await Promise.all(urls.map( | ||
| async url => { | ||
| const response = await fetch(url, options); | ||
| return response.ok | ||
| ? { | ||
| url, | ||
| data: new Uint8Array(await response.arrayBuffer()) | ||
| } | ||
| : undefined; | ||
| } | ||
| ))).filter(Boolean), | ||
| pdf = new jsPDF(); // eslint-disable-line new-cap | ||
|
|
||
| responses.forEach(({ | ||
| url, data | ||
| }, i) => { | ||
| const | ||
| padding = 2, //in mm | ||
| { internal: { pageSize }} = pdf, | ||
| { | ||
| width, height | ||
| } = fit(pdf.getImageProperties(data), { | ||
| width: pageSize.getWidth() - padding * 2, | ||
| height: pageSize.getHeight() - padding * 2 | ||
| }); | ||
| if (i > 0) { | ||
| pdf.addPage(); | ||
| } | ||
| pdf.addImage(data, url.split('.').pop().toUpperCase(), padding, padding, width, height); | ||
|
|
||
| }); | ||
| return pdf.output('blob'); | ||
| }; | ||
|
|
||
| export const downloadBlob = (blob, filename) => { | ||
| const url = URL.createObjectURL(blob), | ||
| a = document.body.appendChild(document.createElement('a')); | ||
| a.href = url; | ||
| a.download = `${filename}.pdf`; | ||
| a.click(); | ||
| document.body.removeChild(a); | ||
| URL.revokeObjectURL(url); | ||
| }; | ||
|
|
||
| export const download = async (urls, filename, credentials) => { | ||
| const blob = await create(urls, credentials); | ||
| await downloadBlob(blob, filename); | ||
| return blob; | ||
| }; |
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