Implemented keyboard shortcuts for NSTextField.

Author: p-x9

pock_headline_news.xcodeproj/project.pbxproj

@@ -22,6 +22,7 @@
 		4246EF612712EB0F003541E9 /* PockKit in Frameworks */ = {isa = PBXBuildFile; productRef = 4246EF602712EB0F003541E9 /* PockKit */; };
 		4246EF642712EB40003541E9 /* Defaults in Frameworks */ = {isa = PBXBuildFile; productRef = 4246EF632712EB40003541E9 /* Defaults */; };
 		4246EF672712EB70003541E9 /* SnapKit in Frameworks */ = {isa = PBXBuildFile; productRef = 4246EF662712EB70003541E9 /* SnapKit */; };
+		42476943274D5BF700D4761C /* NSTextField.swift in Sources */ = {isa = PBXBuildFile; fileRef = 42476942274D5BF700D4761C /* NSTextField.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -41,6 +42,7 @@
 		422F670026F6620700AEFAE0 /* HeadLineNewsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HeadLineNewsView.swift; sourceTree = "<group>"; };
 		422F670226F6F4D400AEFAE0 /* README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
 		422F670326F73D9C00AEFAE0 /* NSViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NSViewController.swift; sourceTree = "<group>"; };
+		42476942274D5BF700D4761C /* NSTextField.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NSTextField.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -110,6 +112,7 @@
 			children = (
 				422F66EC26F3A08D00AEFAE0 /* NSColor.swift */,
 				422F670326F73D9C00AEFAE0 /* NSViewController.swift */,
+				42476942274D5BF700D4761C /* NSTextField.swift */,
 			);
 			path = Extension;
 			sourceTree = "<group>";
@@ -255,6 +258,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				42476943274D5BF700D4761C /* NSTextField.swift in Sources */,
 				422F66ED26F3A08D00AEFAE0 /* NSColor.swift in Sources */,
 				4200789626F8EB4F007AE2DF /* TextFieldAlert.swift in Sources */,
 				422F670426F73D9C00AEFAE0 /* NSViewController.swift in Sources */,

pock_headline_news/Sources/Extension/NSTextField.swift

@@ -0,0 +1,39 @@
+//
+//  NSTextField.swift
+//  pock_headline_news
+//
+//  Created by p-x9 on 2021/11/24.
+//  
+//
+
+import Cocoa
+
+extension NSTextField {
+    override open func performKeyEquivalent(with event: NSEvent) -> Bool {
+        let flags = event.modifierFlags.intersection(.deviceIndependentFlagsMask)
+        let characters = event.charactersIgnoringModifiers?.lowercased()
+        switch flags {
+        case [.command]:
+            let selector: Selector
+            switch characters {
+            case "x":
+                selector = #selector(NSText.cut(_:))
+            case "c":
+                selector = #selector(NSText.copy(_:))
+            case "v":
+                selector = #selector(NSText.paste(_:))
+            case "a":
+                selector = #selector(NSText.selectAll(_:))
+            case "z":
+                selector = Selector(("undo:"))
+            default:
+                return super.performKeyEquivalent(with: event)
+            }
+            return NSApp.sendAction(selector, to: nil, from: self)
+        case [.shift, .command] where characters == "z":
+            return NSApp.sendAction(Selector(("redo:")), to: nil, from: self)
+        default:
+            return super.performKeyEquivalent(with: event)
+        }
+    }
+}