Release v0.2

Sources/IHatePDFs/ReturnKeyCommitMonitor.swift

@@ -0,0 +1,45 @@
+import AppKit
+import SwiftUI
+
+extension View {
+    func commitOnPlainReturn(_ action: @escaping () -> Void) -> some View {
+        modifier(ReturnKeyCommitMonitor(action: action))
+    }
+}
+
+private struct ReturnKeyCommitMonitor: ViewModifier {
+    let action: () -> Void
+    @State private var monitor: Any?
+
+    func body(content: Content) -> some View {
+        content
+            .onAppear {
+                installMonitor()
+            }
+            .onDisappear {
+                removeMonitor()
+            }
+    }
+
+    private func installMonitor() {
+        removeMonitor()
+        monitor = NSEvent.addLocalMonitorForEvents(matching: .keyDown) { event in
+            guard isPlainReturn(event) else { return event }
+            action()
+            return nil
+        }
+    }
+
+    private func removeMonitor() {
+        guard let monitor else { return }
+        NSEvent.removeMonitor(monitor)
+        self.monitor = nil
+    }
+
+    private func isPlainReturn(_ event: NSEvent) -> Bool {
+        guard event.keyCode == 36 || event.keyCode == 76 else { return false }
+
+        let multilineModifiers: NSEvent.ModifierFlags = [.shift, .option, .command, .control]
+        return event.modifierFlags.intersection(multilineModifiers).isEmpty
+    }
+}