Creating a new file with clipboard contents (#1995)

### Description

- A new file can be created with the contents on the clipboard using menu action.
- PTAL and LMK if I can proceed to implement this with shortcut key.

### Related Issue
- Addresses #1970 

### Screenshot
https://github.com/user-attachments/assets/79d42cdf-d88d-46ff-b8bd-11c4ae640333

### Potential Bugs to fix
- New file not being opened in new tab.

Author: Syrux64

CodeEdit.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -62,7 +62,8 @@ extension CEWorkspaceFileManager {
     func addFile(
         fileName: String,
         toFile file: CEWorkspaceFile,
-        useExtension: String? = nil
+        useExtension: String? = nil,
+        contents: Data? = nil
     ) throws -> CEWorkspaceFile {
         // check the folder for other files, and see what the most common file extension is
         do {
@@ -95,7 +96,7 @@ extension CEWorkspaceFileManager {
             // Create the file
             guard fileManager.createFile(
                 atPath: fileUrl.path,
-                contents: nil,
+                contents: contents,
                 attributes: [FileAttributeKey.creationDate: Date()]
             ) else {
                 throw CocoaError.error(.fileWriteUnknown, url: fileUrl)

CodeEdit/Features/CEWorkspace/Models/CEWorkspaceFileManager+FileManagement.swift

@@ -61,6 +61,12 @@ final class ProjectNavigatorMenu: NSMenu {
         let showFileInspector = menuItem("Show File Inspector", action: nil)
 
         let newFile = menuItem("New File...", action: #selector(newFile))
+        let newFileFromClipboard = menuItem(
+            "New File from Clipboard",
+            action: #selector(newFileFromClipboard),
+            key: "v"
+        )
+        newFileFromClipboard.keyEquivalentModifierMask = [.command]
         let newFolder = menuItem("New Folder", action: #selector(newFolder))
 
         let rename = menuItem("Rename", action: #selector(renameFile))
@@ -100,6 +106,7 @@ final class ProjectNavigatorMenu: NSMenu {
             showFileInspector,
             NSMenuItem.separator(),
             newFile,
+            newFileFromClipboard,
             newFolder
         ]
 

CodeEdit/Features/NavigatorArea/ProjectNavigator/OutlineView/ProjectNavigatorMenu.swift

@@ -98,6 +98,47 @@ extension ProjectNavigatorMenu {
         }
     }
 
+    /// Opens the rename file dialogue on the cell this was presented from.
+    @objc
+    func renameFile() {
+        guard let newFile = workspace?.listenerModel.highlightedFileItem else { return }
+        let row = sender.outlineView.row(forItem: newFile)
+        guard row > 0,
+              let cell = sender.outlineView.view(
+                atColumn: 0,
+                row: row,
+                makeIfNecessary: false
+              ) as? ProjectNavigatorTableViewCell else {
+            return
+        }
+        sender.outlineView.window?.makeFirstResponder(cell.textField)
+    }
+
+    // TODO: Automatically identified the file type
+    /// Action that creates a new file with clipboard content
+    @objc
+    func newFileFromClipboard() {
+        guard let item else { return }
+        do {
+            let clipBoardContent = NSPasteboard.general.string(forType: .string)?.data(using: .utf8)
+            if let clipBoardContent, !clipBoardContent.isEmpty, let newFile = try workspace?
+                .workspaceFileManager?
+                .addFile(
+                    fileName: "untitled",
+                    toFile: item,
+                    contents: clipBoardContent
+                ) {
+                workspace?.listenerModel.highlightedFileItem = newFile
+                workspace?.editorManager?.openTab(item: newFile)
+                renameFile()
+            }
+        } catch {
+            let alert = NSAlert(error: error)
+            alert.addButton(withTitle: "Dismiss")
+            alert.runModal()
+        }
+    }
+
     // TODO: allow custom folder names
     /// Action that creates a new untitled folder
     @objc
@@ -143,21 +184,6 @@ extension ProjectNavigatorMenu {
         reloadData()
     }
 
-    /// Opens the rename file dialogue on the cell this was presented from.
-    @objc
-    func renameFile() {
-        let row = sender.outlineView.row(forItem: item)
-        guard row > 0,
-              let cell = sender.outlineView.view(
-                atColumn: 0,
-                row: row,
-                makeIfNecessary: false
-              ) as? ProjectNavigatorTableViewCell else {
-            return
-        }
-        sender.outlineView.window?.makeFirstResponder(cell.textField)
-    }
-
     /// Action that moves the item to trash.
     @objc
     func trash() {

CodeEdit/Features/NavigatorArea/ProjectNavigator/OutlineView/ProjectNavigatorMenuActions.swift

@@ -0,0 +1,37 @@
+//
+//  ProjectNavigatorNSOutlineView.swift
+//  CodeEdit
+//
+//  Created by Khan Winter on 6/10/25.
+//
+
+import AppKit
+
+final class ProjectNavigatorNSOutlineView: NSOutlineView, NSMenuItemValidation {
+    override func performKeyEquivalent(with event: NSEvent) -> Bool {
+        guard event.window === window && window?.firstResponder === self else {
+            return super.performKeyEquivalent(with: event)
+        }
+
+        if event.charactersIgnoringModifiers == "v"
+            && event.modifierFlags.intersection(.deviceIndependentFlagsMask) == .command {
+            guard let menu = menu as? ProjectNavigatorMenu else {
+                return super.performKeyEquivalent(with: event)
+            }
+            menu.delegate?.menuNeedsUpdate?(menu)
+            for fileItem in selectedRowIndexes.compactMap({ item(atRow: $0) as? CEWorkspaceFile }) {
+                menu.item = fileItem
+                menu.newFileFromClipboard()
+            }
+            return true
+        }
+        return super.performKeyEquivalent(with: event)
+    }
+
+    func validateMenuItem(_ menuItem: NSMenuItem) -> Bool {
+        if menuItem.action == #selector(ProjectNavigatorMenu.newFileFromClipboard) {
+            return !selectedRowIndexes.isEmpty
+        }
+        return false
+    }
+}

CodeEdit/Features/NavigatorArea/ProjectNavigator/OutlineView/ProjectNavigatorNSOutlineView.swift

@@ -18,12 +18,12 @@ extension ProjectNavigatorViewController: NSMenuDelegate {
         let row = outlineView.clickedRow
         guard let menu = menu as? ProjectNavigatorMenu else { return }
 
+        menu.workspace = workspace
         if row == -1 {
             menu.item = nil
         } else {
             if let item = outlineView.item(atRow: row) as? CEWorkspaceFile {
                 menu.item = item
-                menu.workspace = workspace
             } else {
                 menu.item = nil
             }

CodeEdit/Features/NavigatorArea/ProjectNavigator/OutlineView/ProjectNavigatorViewController+NSMenuDelegate.swift

@@ -74,7 +74,7 @@ final class ProjectNavigatorViewController: NSViewController {
         self.scrollView.hasVerticalScroller = true
         self.view = scrollView
 
-        self.outlineView = NSOutlineView()
+        self.outlineView = ProjectNavigatorNSOutlineView()
         self.outlineView.dataSource = self
         self.outlineView.delegate = self
         self.outlineView.autosaveExpandedItems = true