first commit

.gitignore

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+/vendor

composer.json

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+{
+    "name": "leconfe/pdf-js",
+    "autoload": {
+        "psr-4": {
+            "PdfJs\\": "src/"
+        }
+    },
+    "authors": [
+        {
+            "name": "Leconfe"
+        }
+    ],
+    "require": {}
+}

index.php

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+<?php
+
+require 'vendor/autoload.php';
+
+use PdfJs\PdfJsPlugin;
+
+return new PdfJsPlugin;

index.yaml

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+name: 'PDFjs Viewer Plugin'
+folder: PdfJs
+author: 'Leconfe'
+description: 'This plugin uses the pdf.js PDF viewer to embed PDFs on the paper galley pages.'
+version: 1.0.0

src/PdfJsPlugin.php

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+<?php
+
+namespace PdfJs;
+
+use App\Classes\Plugin;
+use App\Facades\Hook;
+use CustomHeader\Pages\CustomHeaderPage;
+use Filament\Panel;
+
+class PdfJsPlugin extends Plugin
+{
+	public function boot()
+	{
+		Hook::add('Frontend::PaperGalley', function ($hookName, $galley, &$returner) {
+			if (!$galley->isPdf()) {
+				return;
+			}
+
+			$media = $galley->file->media;
+
+			$returner = response()
+				->file($media->getPath(), [
+					'Content-Type' => $media->mime_type,
+					'Content-Disposition' => 'inline; filename="' . $media->file_name . '"',
+					'Content-Length' => $media->size,
+					'Content-Transfer-Encoding' => 'binary',
+					'Accept-Ranges' => 'bytes',
+				]);
+		});
+	}
+}