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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,37 +1,50 @@ | ||
| import Cocoa | ||
| import Quartz | ||
| import WebKit | ||
|
|
||
| class PreviewViewController: NSViewController, QLPreviewingController, WKNavigationDelegate { | ||
| var webView: WKWebView! | ||
|
|
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| class PreviewViewController: NSViewController, QLPreviewingController { | ||
| override func loadView() { | ||
| view = NSView() | ||
| // Do not call `super.loadView()` (related to storybooks) | ||
|
|
||
| // Create NSView (overrides inherited storybook logic) | ||
| view = NSView(frame: NSRect(x: 0, y: 0, width: 200, height: 100)) | ||
| } | ||
|
|
||
| /* | ||
| * Implement this method and set QLSupportsSearchableItems to YES in the Info.plist of the | ||
| * extension if you support CoreSpotlight. | ||
| * | ||
| * func preparePreviewOfSearchableItem( | ||
| * identifier: String, | ||
| * queryString: String?, | ||
| * completionHandler handler: @escaping (Error?) -> Void | ||
| * ) { | ||
| * // Perform any setup necessary in order to prepare the view. | ||
| * | ||
| * // Call the completion handler so Quick Look knows that the preview is fully loaded. | ||
| * // Quick Look will display a loading spinner while the completion handler is not called. | ||
| * handler(nil) | ||
| * } | ||
| */ | ||
| // swiftlint:disable:next overridden_super_call | ||
| override func viewDidLoad() { | ||
| // Do not call `super.viewDidLoad()` (related to storybooks) | ||
|
|
||
| func preparePreviewOfFile(at _: URL, completionHandler handler: @escaping (Error?) -> Void) { | ||
| // Add the supported content types to the QLSupportedContentTypes array in the Info.plist of | ||
| // the extension. | ||
| // Create web view for rendering file preview | ||
| webView = WKWebView(frame: view.bounds) | ||
| webView.autoresizingMask = [.height, .width] | ||
| view.addSubview(webView) | ||
| } | ||
|
|
||
| // Perform any setup necessary in order to prepare the view. | ||
| /// Spotlight preview handler | ||
| func preparePreviewOfSearchableItem( | ||
| identifier _: String, | ||
| queryString _: String?, | ||
| completionHandler handler: @escaping (Error?) -> Void | ||
| ) { | ||
| previewFile(completionHandler: handler) | ||
| } | ||
|
|
||
| /// File preview handler (e.g. preview in the Finder or when pressing space on a file) | ||
| func preparePreviewOfFile(at _: URL, completionHandler handler: @escaping (Error?) -> Void) { | ||
| previewFile(completionHandler: handler) | ||
| } | ||
|
|
||
| // Call the completion handler so Quick Look knows that the preview is fully loaded. | ||
| // Quick Look will display a loading spinner while the completion handler is not called. | ||
| private func previewFile(completionHandler handler: @escaping (Error?) -> Void) { | ||
| if let url = Bundle.main.url(forResource: "content", withExtension: "html") { | ||
| webView.loadFileURL(url, allowingReadAccessTo: url.deletingLastPathComponent()) | ||
| } else { | ||
| // TODO: Display error message if HTML cannot be loaded | ||
| print("Error loading preview HTML") | ||
| } | ||
|
|
||
| // Stop displaying Quick Look loading spinner | ||
| handler(nil) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| <!DOCTYPE html> | ||
|
|
||
| <html> | ||
| <head> | ||
| <meta charset="utf-8" /> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" /> | ||
| </head> | ||
|
|
||
| <body> | ||
| <p>Hello world!</p> | ||
| </body> | ||
| </html> |