vimr/VimR/MainWindow+Actions.swift

/**
 * Tae Won Ha - http://taewon.de - @hataewon
 * See LICENSE
 */

import Cocoa

// MARK: - File Menu Item Actions
extension MainWindow {

  @IBAction func newTab(_ sender: Any?) {
    self.neoVimView.newTab()
  }

  @IBAction func openDocument(_ sender: Any?) {
    let panel = NSOpenPanel()
    panel.canChooseDirectories = true
    panel.allowsMultipleSelection = true
    panel.beginSheetModal(for: self.window) { result in
      guard result == .OK else {
        return
      }

      let urls = panel.urls
      if self.neoVimView.allBuffers().count == 1 {
        let isTransient = self.neoVimView.allBuffers().first?.isTransient ?? false

        if isTransient {
          self.neoVimView.cwd = FileUtils.commonParent(of: urls)
        }
      }
      self.neoVimView.open(urls: urls)
    }
  }

  @IBAction func openQuickly(_ sender: Any?) {
    self.emit(self.uuidAction(for: .openQuickly))
  }

  @IBAction func saveDocument(_ sender: Any?) {
    guard let curBuf = self.neoVimView.currentBuffer() else {
      return
    }

    if curBuf.url == nil {
      self.savePanelSheet { self.neoVimView.saveCurrentTab(url: $0) }
      return
    }

    self.neoVimView.saveCurrentTab()
  }

  @IBAction func saveDocumentAs(_ sender: Any?) {
    if self.neoVimView.currentBuffer() == nil {
      return
    }

    self.savePanelSheet { url in
      self.neoVimView.saveCurrentTab(url: url)

      if self.neoVimView.isCurrentBufferDirty() {
        self.neoVimView.openInNewTab(urls: [url])
      } else {
        self.neoVimView.openInCurrentTab(url: url)
      }
    }
  }

  fileprivate func savePanelSheet(action: @escaping (URL) -> Void) {
    let panel = NSSavePanel()
    panel.beginSheetModal(for: self.window) { result in
      guard result == .OK else {
        return
      }

      let showAlert: () -> Void = {
        let alert = NSAlert()
        alert.addButton(withTitle: "OK")
        alert.messageText = "Invalid File Name"
        alert.informativeText = "The file name you have entered cannot be used. Please use a different name."
        alert.alertStyle = .warning

        alert.runModal()
      }

      guard let url = panel.url else {
        showAlert()
        return
      }

      action(url)
    }
  }
}

// MARK: - Tools Menu Item Actions
extension MainWindow {

  @IBAction func toggleAllTools(_ sender: Any?) {
    self.workspace.toggleAllTools()
    self.focusNeoVimView(self)

    self.emit(self.uuidAction(for: .toggleAllTools(self.workspace.isAllToolsVisible)))
  }

  @IBAction func toggleToolButtons(_ sender: Any?) {
    self.workspace.toggleToolButtons()
    self.emit(self.uuidAction(for: .toggleToolButtons(self.workspace.isToolButtonsVisible)))
  }

  @IBAction func toggleFileBrowser(_ sender: Any?) {
    let fileBrowser = self.fileBrowserContainer

    if fileBrowser?.isSelected == true {
      if fileBrowser?.view.isFirstResponder == true {
        fileBrowser?.toggle()
        self.focusNeoVimView(self)
      } else {
        self.emit(self.uuidAction(for: .focus(.fileBrowser)))
      }

      return
    }

    fileBrowser?.toggle()
    self.emit(self.uuidAction(for: .focus(.fileBrowser)))
  }

  @IBAction func focusNeoVimView(_: Any?) {
//    self.window.makeFirstResponder(self.neoVimView)
    self.emit(self.uuidAction(for: .focus(.neoVimView)))
  }
}

// MARK: - NSUserInterfaceValidationsProtocol
extension MainWindow {

  func validateUserInterfaceItem(_ item: NSValidatedUserInterfaceItem) -> Bool {
    let canSave = self.neoVimView.currentBuffer() != nil
    let canSaveAs = canSave
    let canOpen = canSave
    let canOpenQuickly = canSave
    let canFocusNeoVimView = self.window.firstResponder != self.neoVimView
    let canToggleFileBrowser = self.tools.keys.contains(.fileBrowser)
    let canToggleTools = !self.tools.isEmpty

    guard let action = item.action else {
      return true
    }

    switch action {

    case #selector(toggleAllTools(_:)), #selector(toggleToolButtons(_:)):
      return canToggleTools

    case #selector(toggleFileBrowser(_:)):
      return canToggleFileBrowser

    case #selector(focusNeoVimView(_:)):
      return canFocusNeoVimView

    case #selector(openDocument(_:)):
      return canOpen

    case #selector(openQuickly(_:)):
      return canOpenQuickly

    case #selector(saveDocument(_:)):
      return canSave

    case #selector(saveDocumentAs(_:)):
      return canSaveAs

    default:
      return true

    }
  }
}