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February 26, 2020 19:47
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Automatic pop-up dialog box.
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| <html> | |
| <head> | |
| <style> | |
| html, body, iframe { | |
| margin: 0; | |
| padding: 0; | |
| border: 0; | |
| font-size: 100%; | |
| font: inherit; | |
| vertical-align: baseline; | |
| } | |
| html { | |
| width: 100%; | |
| height: 100%; | |
| } | |
| body { | |
| line-height: 1; | |
| width: inherit; | |
| height: inherit; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <iframe src="" width="100%" height="100%"></iframe> | |
| <script> | |
| /** | |
| * Load dynamic PDF files by QueryString 'print' param and open the print dialog box automatically. | |
| * e.g., http://localhost:8000/?print=file.pdf | |
| */ | |
| let iframe = document.getElementsByTagName('iframe')[0], | |
| iframeWindow = iframe.contentWindow || iframe; | |
| async function loadPDF() { | |
| return await new Promise((resolve) => { | |
| iframe.src = new URLSearchParams(window.location.search).get('print'); | |
| iframe.onload = () => resolve(); | |
| }); | |
| } | |
| loadPDF().then(() => { | |
| iframe.focus(); | |
| iframeWindow.print(); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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