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Fix detection of iCloud files not being found
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73 changes: 73 additions & 0 deletions
73
SoundFontsFramework/SoundFontsFramework/Fonts, Presets, Tags/Fonts/FontStateQuery.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| class FontStateQuery { | ||
| let query = NSMetadataQuery() | ||
| let queue: OperationQueue | ||
|
|
||
| init(queue: OperationQueue = .main) { | ||
| self.queue = queue | ||
| } | ||
|
|
||
| func searchMetadataItems(paths: [URL]) -> AsyncStream<[MetadataItemWrapper]> { | ||
| query.searchScopes = [NSMetadataQueryUbiquitousDocumentsScope] | ||
| query.sortDescriptors = [] | ||
| query.predicate = NSPredicate(value: true) | ||
| query.searchItems = paths | ||
| return AsyncStream { continuation in | ||
| NotificationCenter.default.addObserver( | ||
| forName: .NSMetadataQueryDidFinishGathering, | ||
| object: query, | ||
| queue: queue | ||
| ) { _ in | ||
| let result = self.query.results.compactMap { item -> MetadataItemWrapper? in | ||
| guard let metadataItem = item as? NSMetadataItem else { | ||
| return nil | ||
| } | ||
| return MetadataItemWrapper(metadataItem: metadataItem) | ||
| } | ||
| continuation.yield(result) | ||
| } | ||
|
|
||
| NotificationCenter.default.addObserver( | ||
| forName: .NSMetadataQueryDidUpdate, | ||
| object: query, | ||
| queue: queue | ||
| ) { _ in | ||
| let result = self.query.results.compactMap { item -> MetadataItemWrapper? in | ||
| guard let metadataItem = item as? NSMetadataItem else { | ||
| return nil | ||
| } | ||
| return MetadataItemWrapper(metadataItem: metadataItem) | ||
| } | ||
| continuation.yield(result) | ||
| } | ||
|
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| query.start() | ||
|
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| continuation.onTermination = { @Sendable _ in | ||
| self.query.stop() | ||
| NotificationCenter.default.removeObserver(self, name: .NSMetadataQueryDidFinishGathering, object: self.query) | ||
| NotificationCenter.default.removeObserver(self, name: .NSMetadataQueryDidUpdate, object: self.query) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| struct MetadataItemWrapper: Sendable { | ||
| let path: String? | ||
| let isPlaceholder: Bool | ||
| let isDownloading: Bool | ||
| let isUploaded: Bool | ||
|
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| init(metadataItem: NSMetadataItem) { | ||
| path = metadataItem.value(forAttribute: NSMetadataItemPathKey) as? String | ||
| isPlaceholder = metadataItem.value(forAttribute: NSMetadataUbiquitousItemDownloadingStatusKey) as? Bool ?? false | ||
|
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| let downloadStatus = metadataItem.value(forAttribute: NSMetadataUbiquitousItemIsDownloadingKey) as? String | ||
| isDownloading = downloadStatus == NSMetadataUbiquitousItemDownloadingStatusCurrent | ||
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| // Check whether the file has been uploaded successfully or saved in the cloud | ||
| let uploaded = metadataItem.value(forAttribute: NSMetadataUbiquitousItemIsUploadedKey) as? Bool ?? false | ||
| let uploading = metadataItem.value(forAttribute: NSMetadataUbiquitousItemIsUploadingKey) as? Bool ?? true | ||
|
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| isUploaded = uploaded && !uploading | ||
| } | ||
| } |
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