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Disable syntax pop-up menu while no document
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@ -232,6 +232,8 @@ final class DocumentWindowController: NSWindowController, NSWindowDelegate {
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self.synchronizeWindowTitleWithDocumentName()
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self.syntaxPopUpButton?.isEnabled = (document != nil)
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// observe document's syntax change for toolbar
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self.documentSyntaxObserver = nil
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if let document {
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@ -453,6 +455,7 @@ extension DocumentWindowController: NSToolbarDelegate {
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case .syntax:
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let popUpButton = NSPopUpButton()
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popUpButton.bezelStyle = .toolbar
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popUpButton.isEnabled = false // enable later
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self.syntaxPopUpButton = popUpButton
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self.buildSyntaxPopUpButton()
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