43 lines
1.6 KiB
Swift
43 lines
1.6 KiB
Swift
import Cocoa
|
|
import Quartz // QLPreviewingController
|
|
import WebKit // WebView
|
|
import os // OSLog
|
|
|
|
private let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "preview-plugin")
|
|
|
|
class PreviewViewController: NSViewController, QLPreviewingController {
|
|
|
|
override var nibName: NSNib.Name? {
|
|
return NSNib.Name("PreviewViewController")
|
|
}
|
|
|
|
/// Load resource file either from user documents dir (if exists) or app bundle (default).
|
|
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: do NOT copy! Breaks on future updates
|
|
}
|
|
// else, load bundle file
|
|
let path = Bundle.main.url(forResource: filename, withExtension: ext)
|
|
return try String(contentsOf: path!, encoding: .utf8)
|
|
}
|
|
|
|
func preparePreviewOfFile(at url: URL) async throws {
|
|
let meta = MetaInfo(url)
|
|
let html = HtmlGenerator(meta).generate(
|
|
template: try bundleFile(filename: "template", ext: "html"),
|
|
css: try bundleFile(filename: "style", ext: "css"),
|
|
)
|
|
// 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
|
|
}
|
|
}
|