GH-228 Add open

SwiftNeoVim/NeoVimView.swift

@@ -229,6 +229,19 @@ public class NeoVimView: NSView, NSUserInterfaceValidations {
     }
   }
 
+  public func open(url: NSURL) {
+    guard let path = url.path else {
+      return
+    }
+
+    switch self.mode {
+    case .Normal:
+      self.agent.vimInput(":e \(path)<CR>")
+    default:
+      self.agent.vimInput("<Esc>:e \(path)<CR>")
+    }
+  }
+  
   public func openInNewTab(url: NSURL) {
     guard let path = url.path else {
       return

VimR/AppDelegate.swift

@@ -92,5 +92,15 @@ extension AppDelegate {
   }
   
   @IBAction func openDocument(sender: AnyObject!) {
+    let panel = NSOpenPanel()
+    panel.canChooseDirectories = true
+    panel.beginWithCompletionHandler { result in
+      guard result == NSFileHandlingPanelOKButton else {
+        return
+      }
+
+      let url = panel.URLs[0]
+      self.mainWindowManager.newMainWindow(url)
+    }
   }
 }

VimR/MainWindowComponent.swift

@@ -23,6 +23,8 @@ class MainWindowComponent: NSObject, NSWindowDelegate, NeoVimViewDelegate, Compo
   private let windowController = NSWindowController(windowNibName: "MainWindow")
   private let window: NSWindow
 
+  private var urlToBeOpenedWhenReady: NSURL?
+
   private var defaultEditorFont: NSFont
   private var usesLigatures: Bool
 
@@ -32,12 +34,13 @@ class MainWindowComponent: NSObject, NSWindowDelegate, NeoVimViewDelegate, Compo
 
   private let neoVimView = NeoVimView(forAutoLayout: ())
 
-  init(source: Observable<Any>, manager: MainWindowManager, initialData: PrefData) {
+  init(source: Observable<Any>, manager: MainWindowManager, url: NSURL? = nil, initialData: PrefData) {
     self.source = source
     self.mainWindowManager = manager
     self.window = self.windowController.window!
     self.defaultEditorFont = initialData.appearance.editorFont
     self.usesLigatures = initialData.appearance.editorUsesLigatures
+    self.urlToBeOpenedWhenReady = url
 
     super.init()
 
@@ -49,7 +52,6 @@ class MainWindowComponent: NSObject, NSWindowDelegate, NeoVimViewDelegate, Compo
 
     self.window.makeFirstResponder(self.neoVimView)
     self.windowController.showWindow(self)
-    
   }
 
   deinit {
@@ -131,6 +133,10 @@ extension MainWindowComponent {
   func neoVimReady() {
     self.neoVimView.font = self.defaultEditorFont
     self.neoVimView.usesLigatures = self.usesLigatures
+
+    if let url = self.urlToBeOpenedWhenReady {
+      self.neoVimView.open(url)
+    }
   }
   
   func neoVimStopped() {

VimR/MainWindowManager.swift

@@ -22,9 +22,10 @@ class MainWindowManager {
     self.addReactions()
   }
 
-  func newMainWindow() {
+  func newMainWindow(url: NSURL? = nil) -> MainWindowComponent {
-    let mainWindowComponent = MainWindowComponent(source: self.source, manager: self, initialData: self.data)
+    let mainWindowComponent = MainWindowComponent(source: self.source, manager: self, url: url, initialData: self.data)
     self.mainWindowComponents[mainWindowComponent.uuid] = mainWindowComponent
+    return mainWindowComponent
   }
   
   func closeMainWindow(mainWindowComponent: MainWindowComponent) {