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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| // | ||
| // AppCollection.swift | ||
| // Latest | ||
| // | ||
| // Created by Max Langer on 15.08.18. | ||
| // Copyright © 2018 Max Langer. All rights reserved. | ||
| // | ||
|
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| import Foundation | ||
|
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| /// The collection handling the apps | ||
| /// This structure supports the following states: | ||
| /// - All apps with updates available | ||
| /// - All installed apps, separated from the ones with updates through sections | ||
| struct AppCollection { | ||
|
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| /// Holds the apps | ||
| fileprivate var data = [AppBundle]() | ||
|
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| /// Flag indicating if all apps are presented | ||
| var showInstalledUpdates = false | ||
|
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| /// The indexes of the sections as well as installed apps | ||
| var indexesOfInstalledApps: IndexSet { | ||
| // The first section header | ||
| var indexSet = IndexSet(integer: 0) | ||
|
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| // All installed apps including the second header | ||
| indexSet.insert(integersIn: (self.countOfAvailableUpdates + 1)..<(self.data.count + 2)) | ||
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| return indexSet | ||
| } | ||
|
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| /// The number of apps available | ||
| var count: Int { | ||
| if !self.showInstalledUpdates { | ||
| return self.data.filter({ $0.updateAvailable }).count | ||
| } | ||
|
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| return self.data.count + 2 | ||
| } | ||
|
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| /// The cached value of the count of apps with updates available | ||
| private(set) var countOfAvailableUpdates: Int = 0 | ||
|
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| /// Adds a new app to the collection | ||
| mutating func append(_ element: Element) { | ||
| self.data.append(element) | ||
| self.data.sort { (bundle1, bundle2) -> Bool in | ||
| if bundle1.updateAvailable != bundle2.updateAvailable { | ||
| return bundle1.updateAvailable | ||
| } | ||
|
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| return bundle1.name < bundle2.name | ||
| } | ||
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| self.updateCountOfAvailableUpdates() | ||
| } | ||
|
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| /// Returns the relative index of the element. This index may not reflect the internal position of the app due to section offsets | ||
| func index(of element: Element) -> Index? { | ||
| guard element.updateAvailable || self.showInstalledUpdates, let index = self.data.firstIndex(of: element) else { return nil } | ||
|
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| return self.align(index) | ||
| } | ||
|
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| /// Removes the app from the collection | ||
| @discardableResult | ||
| mutating func remove(_ appBundle: AppBundle) -> Int? { | ||
| guard let index = self.data.firstIndex(where: { $0 == appBundle }) else { return nil } | ||
|
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| self.data.remove(at: index) | ||
| self.updateCountOfAvailableUpdates() | ||
|
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| return self.align(index) | ||
| } | ||
|
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| /// Returns whether there is a section at the given index | ||
| func isSectionHeader(at index: Int) -> Bool { | ||
| guard self.showInstalledUpdates else { return false } | ||
|
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| return [0, self.countOfAvailableUpdates + 1].contains(index) | ||
| } | ||
|
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| /// This method counts all available updates. It assumes that the array is sorted with all updates at the beginning | ||
| private mutating func updateCountOfAvailableUpdates() { | ||
| self.countOfAvailableUpdates = self.data.firstIndex(where: { !$0.updateAvailable }) ?? self.data.count | ||
| } | ||
|
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| /// Aligns the index based on the section headers | ||
| private func align(_ index: Int) -> Int { | ||
| var index = index | ||
|
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| if self.showInstalledUpdates { | ||
| index += self.countOfAvailableUpdates < index ? 2 : 1 | ||
| } | ||
|
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| if self.isSectionHeader(at: index) { | ||
| index += 1 | ||
| } | ||
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| return index | ||
| } | ||
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| } | ||
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| extension AppCollection: Collection { | ||
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| typealias DataType = [AppBundle] | ||
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| typealias Index = DataType.Index | ||
| typealias Element = DataType.Element | ||
| typealias Iterator = DataType.Iterator | ||
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| var startIndex: Index { return self.data.startIndex } | ||
| var endIndex: Index { return self.data.endIndex } | ||
|
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| subscript(position: Index) -> Element { | ||
| var position = position | ||
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| if self.showInstalledUpdates { | ||
| position -= self.countOfAvailableUpdates < position ? 2 : 1 // Remove first row | ||
| } | ||
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| return self.data[Swift.max(position, 0)] | ||
| } | ||
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| func makeIterator() -> Iterator { | ||
| return self.data.makeIterator() | ||
| } | ||
|
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| // Method that returns the next index when iterating | ||
| func index(after i: Index) -> Index { | ||
| return self.data.index(after: i) | ||
| } | ||
|
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||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| // | ||
| // IconCache.swift | ||
| // Latest | ||
| // | ||
| // Created by Max Langer on 12.08.18. | ||
| // Copyright © 2018 Max Langer. All rights reserved. | ||
| // | ||
|
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| import AppKit | ||
|
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| class IconCache { | ||
|
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| static var shared = IconCache() | ||
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| private var cache: NSCache<NSURL, NSImage> | ||
|
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| init() { | ||
| self.cache = NSCache() | ||
| } | ||
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| func icon(for app: AppBundle, with completion: @escaping (NSImage) -> Void) { | ||
| if let icon = self.cache.object(forKey: app.url as NSURL) { | ||
| completion(icon) | ||
| } | ||
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| DispatchQueue.main.async { | ||
| let icon = NSWorkspace.shared.icon(forFile: app.url.path) | ||
| self.cache.setObject(icon, forKey: app.url as NSURL) | ||
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| completion(icon) | ||
| } | ||
| } | ||
|
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| } |
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