Initial

2025-07-29 11:54:12 +02:00
commit 6e12dfa61d
18 changed files with 1794 additions and 0 deletions
--- a/QLPreview/PreviewViewController.swift
+++ b/QLPreview/PreviewViewController.swift
@@ -0,0 +1,42 @@
+import Cocoa
+import Quartz
+import WebKit
+
+class PreviewViewController: NSViewController, QLPreviewingController {
+	func bundleFile(filename: String, ext: String) throws -> String {
+		if let appSupport = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first {
+			let override = appSupport.appendingPathComponent(filename + "." + ext)
+			if FileManager.default.fileExists(atPath: override.path) {
+				return try String(contentsOfFile: override.path, encoding: .utf8)
+			}
+		}
+		// else, load bundle file
+		let path = Bundle.main.path(forResource: filename, ofType: ext)
+		return try String(contentsOfFile: path!, encoding: .utf8)
+	}
+	
+	func preparePreviewOfFile(at url: URL) async throws {
+		let jsonFile = try String(contentsOf: url, encoding: .utf8)
+		let html = """
+<!DOCTYPE html>
+<html>
+<head>
+ <meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
+ <style>\(try self.bundleFile(filename: "style", ext: "css"))</style>
+ <script>\(try self.bundleFile(filename: "script", ext: "js"))</script>
+</head>
+<body onload="init()">
+ <script id="json" type="application/json">\(jsonFile)</script>
+</body>
+</html>
+"""
+		
+		// sure, we could use `WKWebView`, but that requires the `com.apple.security.network.client` entitlement
+		//let web = WKWebView(frame: self.view.bounds)
+		let web = WebView(frame: self.view.bounds)
+		web.autoresizingMask = [.width, .height]
+		self.view.addSubview(web)
+		web.mainFrame.loadHTMLString(html, baseURL: nil)  // WebView
+		//web.loadHTMLString(html, baseURL: nil)  // WKWebView
+	}
+}