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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| // | ||
| // StatusItemController.swift | ||
| // Battery Thing | ||
| // | ||
| // Created by Curtis Hard on 14/07/2021. | ||
| // | ||
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| import Foundation | ||
| import AppKit | ||
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| // 实践发现NSStatusItem.autosaveName 在设置 isVisible=false 或 true后，并不能恢复到原来的位置，同下面这个issue | ||
| // https://github.com/feedback-assistant/reports/issues/200 | ||
| // 也是同样使用了这个issue中 @curthard89 的方法来解决这个问题 | ||
| class StatusBarController: NSObject { | ||
| static var system = StatusBarController() | ||
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| lazy private(set) var items = Set<NSStatusItem>() | ||
| private let defaults = UserDefaults.standard | ||
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| deinit { | ||
| for item in items { | ||
| removeObserver(autosaveName: item.autosaveName) | ||
| } | ||
| } | ||
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| func removeStatusItem(_ item: NSStatusItem) { | ||
| items.remove(item) | ||
| } | ||
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| func statusItem(autosaveName: NSStatusItem.AutosaveName, | ||
| width: CGFloat) -> NSStatusItem { | ||
| // it is important we load the default and then add an observer | ||
| // before we ask the os for the item as the item will instantly | ||
| // remove the user preference | ||
| addObserver(autosaveName: autosaveName) | ||
| let item = NSStatusBar.system.statusItem(withLength: width) | ||
| items.insert(item) | ||
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| // this is the line that will cause the bug | ||
| item.autosaveName = autosaveName | ||
| return item | ||
| } | ||
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| fileprivate func defaultsKey(_ autosaveName: NSStatusItem.AutosaveName) -> String { | ||
| return "NSStatusItem Preferred Position \(autosaveName)" | ||
| } | ||
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| fileprivate func addObserver(autosaveName string: NSStatusItem.AutosaveName) { | ||
| let options: NSKeyValueObservingOptions = [.new, .old] | ||
| defaults.addObserver(self, forKeyPath: defaultsKey(string), | ||
| options: options, | ||
| context: nil) | ||
| } | ||
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| fileprivate func removeObserver(autosaveName: NSStatusItem.AutosaveName) { | ||
| defaults.removeObserver(self, forKeyPath: defaultsKey(autosaveName)) | ||
| } | ||
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| override func observeValue(forKeyPath keyPath: String?, of object: Any?, | ||
| change: [NSKeyValueChangeKey : Any]?, | ||
| context: UnsafeMutableRawPointer?) { | ||
| // settings .autosaveName on the item after it has been created will | ||
| // cause null to be set for the position, this will simply write back | ||
| // the old value to the defaults | ||
| if let dict = change, dict[.newKey] is NSNull, let oldPosition = dict[.oldKey] { | ||
| defaults.set(oldPosition, forKey: keyPath!) | ||
| } | ||
| } | ||
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| } |