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June 8, 2019 08:02
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Encode an image for use in ScriptUI
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| // Courtesy of @joonaspaakko | |
| const picker = document.querySelector('input') | |
| picker.oninput = function() { | |
| const file = picker.files[0] | |
| getBinary( file, function( binary ) { | |
| const string = | |
| `var dialog= new Window ("dialog"); | |
| var image = "${binary}"; | |
| dialog.add ("image", undefined, File.decode(image) ); | |
| dialog.show();` | |
| document.body.innerHTML = string | |
| }) | |
| } | |
| function getBinary( file, callback ) { | |
| const reader = new FileReader() | |
| reader.readAsBinaryString( file ) | |
| reader.onload = function(){ | |
| callback( encodeURIComponent( reader.result ) ) | |
| } | |
| } |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Encode an image for use in ScriptUI</title> | |
| </head> | |
| <body> | |
| <input type="file" /> | |
| </body> | |
| </html> |
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