Drag and Drop External Files to Open in Editor (#2000)

Author: austincondiff

CodeEdit/Features/Editor/Views/EditorAreaView.swift

@@ -7,6 +7,7 @@
 
 import SwiftUI
 import CodeEditTextView
+import UniformTypeIdentifiers
 
 struct EditorAreaView: View {
     @AppSettings(\.general.showEditorJumpBar)
@@ -26,6 +27,9 @@ struct EditorAreaView: View {
 
     @State var codeFile: CodeFileDocument?
 
+    @Environment(\.window.value)
+    private var window: NSWindow?
+
     init(editor: Editor, focus: FocusState<Editor?>.Binding) {
         self.editor = editor
         self._focus = focus
@@ -59,6 +63,10 @@ struct EditorAreaView: View {
                         insets.top += editorInsetAmount
                     }
                     .opacity(dimEditorsWithoutFocus && editor != editorManager.activeEditor ? 0.5 : 1)
+                    .onDrop(of: [.fileURL], isTargeted: nil) { providers in
+                        _ = handleDrop(providers: providers)
+                        return true
+                    }
                 } else {
                     LoadingFileView(selected.file.name)
                         .onAppear {
@@ -77,6 +85,10 @@ struct EditorAreaView: View {
                     .onTapGesture {
                         editorManager.activeEditor = editor
                     }
+                    .onDrop(of: [.fileURL], isTargeted: nil) { providers in
+                        _ = handleDrop(providers: providers)
+                        return true
+                    }
             }
         }
         .frame(maxWidth: .infinity, maxHeight: .infinity)
@@ -122,4 +134,25 @@ struct EditorAreaView: View {
             codeFile = newValue?.file.fileDocument
         }
     }
+
+    private func handleDrop(providers: [NSItemProvider]) -> Bool {
+        for provider in providers {
+            provider.loadItem(forTypeIdentifier: UTType.fileURL.identifier, options: nil) { item, _ in
+                guard let data = item as? Data,
+                      let url = URL(dataRepresentation: data, relativeTo: nil) else {
+                    return
+                }
+
+                DispatchQueue.main.async {
+                    let file = CEWorkspaceFile(url: url)
+                    editor.openTab(file: file)
+                    editorManager.activeEditor = editor
+                    focus = editor
+                    NSApp.activate(ignoringOtherApps: true)
+                    window?.makeKeyAndOrderFront(nil)
+                }
+            }
+        }
+        return true
+    }
 }

CodeEdit/WorkspaceView.swift

@@ -6,6 +6,7 @@
 //
 
 import SwiftUI
+import UniformTypeIdentifiers
 
 struct WorkspaceView: View {
     @Environment(\.window.value)
@@ -167,8 +168,29 @@ struct WorkspaceView: View {
             }
             .background(EffectView(.contentBackground))
             .background(WorkspaceSheets().environmentObject(sourceControlManager))
+            .onDrop(of: [.fileURL], isTargeted: nil) { providers in
+                _ = handleDrop(providers: providers)
+                return true
+            }
             .accessibilityElement(children: .contain)
             .accessibilityLabel("workspace area")
         }
     }
+
+    private func handleDrop(providers: [NSItemProvider]) -> Bool {
+        for provider in providers {
+            provider.loadItem(forTypeIdentifier: UTType.fileURL.identifier, options: nil) { item, _ in
+                guard let data = item as? Data,
+                      let url = URL(dataRepresentation: data, relativeTo: nil) else {
+                    return
+                }
+
+                DispatchQueue.main.async {
+                    let file = CEWorkspaceFile(url: url)
+                    editorManager.activeEditor.openTab(file: file)
+                }
+            }
+        }
+        return true
+    }
 }