mirror of
https://github.com/ghostty-org/ghostty.git
synced 2025-04-20 00:18:53 +03:00
3b2799ce97
This commit does two things: adds a weak reference to the parent container of each SplitNode.Container and SplitNode.Leaf and moves the "direction" of a split out of the SplitNode enum and into the SplitNode.Container struct as a field. Both changes are required for supporting split resizing. A reference to the parent in each leaf and split container is needed in order to traverse upwards through the split tree. If the focused split is not part of a container that is split along the direction that was requested to be resized, then we instead try and resize the parent. If the parent is split along the requested direction, then it is resized appropriately; otherwise, repeat until the root of the tree is reached. The direction is needed inside the SplitNode.Container object itself so that the container knows whether or not it is able to resize itself in the direction requested by the user. Once the split direction was moved inside of SplitNode.Container, it became redundant to also have it as part of the SplitNode enum, so this simplifies things.
435 lines
16 KiB
Swift
435 lines
16 KiB
Swift
import Foundation
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import Cocoa
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import SwiftUI
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import GhosttyKit
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/// The terminal controller is an NSWindowController that maps 1:1 to a terminal window.
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class TerminalController: NSWindowController, NSWindowDelegate,
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TerminalViewDelegate, TerminalViewModel,
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PasteProtectionViewDelegate
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{
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override var windowNibName: NSNib.Name? { "Terminal" }
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/// The app instance that this terminal view will represent.
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let ghostty: Ghostty.AppState
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/// The currently focused surface.
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var focusedSurface: Ghostty.SurfaceView? = nil
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/// The surface tree for this window.
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@Published var surfaceTree: Ghostty.SplitNode? = nil {
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didSet {
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// If our surface tree becomes nil then it means all our surfaces
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// have closed, so we also close the window.
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if (surfaceTree == nil) { lastSurfaceDidClose() }
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}
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}
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/// Fullscreen state management.
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private let fullscreenHandler = FullScreenHandler()
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/// True when an alert is active so we don't overlap multiple.
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private var alert: NSAlert? = nil
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/// The paste protection window, if shown.
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private var pasteProtection: PasteProtectionController? = nil
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init(_ ghostty: Ghostty.AppState, withBaseConfig base: Ghostty.SurfaceConfiguration? = nil) {
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self.ghostty = ghostty
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super.init(window: nil)
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// Initialize our initial surface.
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guard let ghostty_app = ghostty.app else { preconditionFailure("app must be loaded") }
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self.surfaceTree = .leaf(.init(ghostty_app, base))
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// Setup our notifications for behaviors
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let center = NotificationCenter.default
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center.addObserver(
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self,
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selector: #selector(onToggleFullscreen),
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name: Ghostty.Notification.ghosttyToggleFullscreen,
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object: nil)
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center.addObserver(
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self,
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selector: #selector(onGotoTab),
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name: Ghostty.Notification.ghosttyGotoTab,
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object: nil)
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center.addObserver(
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self,
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selector: #selector(onConfirmUnsafePaste),
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name: Ghostty.Notification.confirmUnsafePaste,
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object: nil)
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) is not supported for this view")
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}
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deinit {
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// Remove all of our notificationcenter subscriptions
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let center = NotificationCenter.default
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center.removeObserver(self)
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}
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/// Update the accessory view of each tab according to the keyboard
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/// shortcut that activates it (if any). This is called when the key window
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/// changes and when a window is closed.
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func relabelTabs() {
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guard let windows = self.window?.tabbedWindows else { return }
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guard let cfg = ghostty.config else { return }
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for (index, window) in windows.enumerated().prefix(9) {
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let action = "goto_tab:\(index + 1)"
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let trigger = ghostty_config_trigger(cfg, action, UInt(action.count))
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guard let equiv = Ghostty.keyEquivalentLabel(key: trigger.key, mods: trigger.mods) else {
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continue
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}
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let attributes: [NSAttributedString.Key: Any] = [
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.font: NSFont.labelFont(ofSize: 0),
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.foregroundColor: window.isKeyWindow ? NSColor.labelColor : NSColor.secondaryLabelColor,
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]
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let attributedString = NSAttributedString(string: " \(equiv) ", attributes: attributes)
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let text = NSTextField(labelWithAttributedString: attributedString)
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window.tab.accessoryView = text
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}
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}
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//MARK: - NSWindowController
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override func windowWillLoad() {
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// We do NOT want to cascade because we handle this manually from the manager.
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shouldCascadeWindows = false
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}
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override func windowDidLoad() {
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guard let window = window else { return }
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// If window decorations are disabled, remove our title
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if (!ghostty.windowDecorations) { window.styleMask.remove(.titled) }
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// If we aren't in full screen, then we want to disable tabbing (see comment
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// in the delegate function)
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if (!window.styleMask.contains(.fullScreen)) { disableTabbing() }
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// Terminals typically operate in sRGB color space and macOS defaults
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// to "native" which is typically P3. There is a lot more resources
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// covered in thie GitHub issue: https://github.com/mitchellh/ghostty/pull/376
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window.colorSpace = NSColorSpace.sRGB
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// Center the window to start, we'll move the window frame automatically
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// when cascading.
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window.center()
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// Initialize our content view to the SwiftUI root
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window.contentView = NSHostingView(rootView: TerminalView(
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ghostty: self.ghostty,
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viewModel: self,
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delegate: self
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))
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}
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// Shows the "+" button in the tab bar, responds to that click.
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override func newWindowForTab(_ sender: Any?) {
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// Trigger the ghostty core event logic for a new tab.
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guard let surface = self.focusedSurface?.surface else { return }
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ghostty.newTab(surface: surface)
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}
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//MARK: - NSWindowDelegate
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// This is called when performClose is called on a window (NOT when close()
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// is called directly). performClose is called primarily when UI elements such
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// as the "red X" are pressed.
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func windowShouldClose(_ sender: NSWindow) -> Bool {
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// We must have a window. Is it even possible not to?
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guard let window = self.window else { return true }
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// If we have no surfaces, close.
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guard let node = self.surfaceTree else { return true }
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// If we already have an alert, continue with it
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guard alert == nil else { return false }
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// If our surfaces don't require confirmation, close.
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if (!node.needsConfirmQuit()) { return true }
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// We require confirmation, so show an alert as long as we aren't already.
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let alert = NSAlert()
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alert.messageText = "Close Terminal?"
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alert.informativeText = "The terminal still has a running process. If you close the " +
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"terminal the process will be killed."
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alert.addButton(withTitle: "Close the Terminal")
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alert.addButton(withTitle: "Cancel")
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alert.alertStyle = .warning
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alert.beginSheetModal(for: window, completionHandler: { response in
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self.alert = nil
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switch (response) {
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case .alertFirstButtonReturn:
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window.close()
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default:
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break
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}
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})
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self.alert = alert
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return false
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}
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func windowWillClose(_ notification: Notification) {
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// I don't know if this is required anymore. We previously had a ref cycle between
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// the view and the window so we had to nil this out to break it but I think this
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// may now be resolved. We should verify that no memory leaks and we can remove this.
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self.window?.contentView = nil
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self.relabelTabs()
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}
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func windowDidBecomeKey(_ notification: Notification) {
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self.relabelTabs()
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}
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func windowWillExitFullScreen(_ notification: Notification) {
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// See comment in this function
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disableTabbing()
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}
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func windowWillEnterFullScreen(_ notification: Notification) {
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// We re-enable the automatic tabbing mode when we enter full screen otherwise
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// every new tab also enters a new screen.
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guard let window = self.window else { return }
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window.tabbingMode = .automatic
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}
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private func disableTabbing() {
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// For new windows, explicitly disallow tabbing with other windows.
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// This overrides the value of userTabbingPreference. Rationale:
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// Ghostty provides separate "New Tab" and "New Window" actions so
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// there's no reason to make "New Window" open in a tab.
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guard let window = self.window else { return }
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window.tabbingMode = .disallowed;
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}
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//MARK: - First Responder
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@IBAction func newWindow(_ sender: Any?) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.newWindow(surface: surface)
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}
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@IBAction func newTab(_ sender: Any?) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.newTab(surface: surface)
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}
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@IBAction func close(_ sender: Any) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.requestClose(surface: surface)
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}
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@IBAction func closeWindow(_ sender: Any) {
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self.window?.performClose(sender)
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}
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@IBAction func splitHorizontally(_ sender: Any) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.split(surface: surface, direction: GHOSTTY_SPLIT_RIGHT)
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}
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@IBAction func splitVertically(_ sender: Any) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.split(surface: surface, direction: GHOSTTY_SPLIT_DOWN)
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}
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@IBAction func splitZoom(_ sender: Any) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.splitToggleZoom(surface: surface)
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}
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@IBAction func splitMoveFocusPrevious(_ sender: Any) {
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splitMoveFocus(direction: .previous)
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}
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@IBAction func splitMoveFocusNext(_ sender: Any) {
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splitMoveFocus(direction: .next)
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}
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@IBAction func splitMoveFocusAbove(_ sender: Any) {
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splitMoveFocus(direction: .top)
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}
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@IBAction func splitMoveFocusBelow(_ sender: Any) {
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splitMoveFocus(direction: .bottom)
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}
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@IBAction func splitMoveFocusLeft(_ sender: Any) {
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splitMoveFocus(direction: .left)
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}
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@IBAction func splitMoveFocusRight(_ sender: Any) {
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splitMoveFocus(direction: .right)
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}
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private func splitMoveFocus(direction: Ghostty.SplitFocusDirection) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.splitMoveFocus(surface: surface, direction: direction)
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}
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@IBAction func toggleGhosttyFullScreen(_ sender: Any) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.toggleFullscreen(surface: surface)
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}
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@IBAction func increaseFontSize(_ sender: Any) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.changeFontSize(surface: surface, .increase(1))
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}
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@IBAction func decreaseFontSize(_ sender: Any) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.changeFontSize(surface: surface, .decrease(1))
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}
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@IBAction func resetFontSize(_ sender: Any) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.changeFontSize(surface: surface, .reset)
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}
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@IBAction func toggleTerminalInspector(_ sender: Any) {
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guard let surface = focusedSurface?.surface else { return }
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ghostty.toggleTerminalInspector(surface: surface)
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}
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//MARK: - TerminalViewDelegate
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func focusedSurfaceDidChange(to: Ghostty.SurfaceView?) {
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self.focusedSurface = to
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}
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func titleDidChange(to: String) {
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self.window?.title = to
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}
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func cellSizeDidChange(to: NSSize) {
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guard ghostty.windowStepResize else { return }
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self.window?.contentResizeIncrements = to
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}
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func lastSurfaceDidClose() {
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self.window?.close()
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}
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//MARK: - Paste Protection
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func pasteProtectionComplete(_ action: PasteProtectionView.Action) {
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// End our paste protection no matter what
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guard let pp = self.pasteProtection else { return }
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self.pasteProtection = nil
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// Close the sheet
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if let ppWindow = pp.window {
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window?.endSheet(ppWindow)
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}
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let str: String
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switch (action) {
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case .cancel:
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str = ""
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case .paste:
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str = pp.contents
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}
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Ghostty.AppState.completeClipboardRequest(pp.surface, data: str, state: pp.state, confirmed: true)
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}
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//MARK: - Notifications
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@objc private func onGotoTab(notification: SwiftUI.Notification) {
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guard let target = notification.object as? Ghostty.SurfaceView else { return }
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guard target == self.focusedSurface else { return }
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guard let window = self.window else { return }
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// Get the tab index from the notification
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guard let tabIndexAny = notification.userInfo?[Ghostty.Notification.GotoTabKey] else { return }
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guard let tabIndex = tabIndexAny as? Int32 else { return }
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guard let windowController = window.windowController else { return }
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guard let tabGroup = windowController.window?.tabGroup else { return }
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let tabbedWindows = tabGroup.windows
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// This will be the index we want to actual go to
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let finalIndex: Int
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// An index that is invalid is used to signal some special values.
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if (tabIndex <= 0) {
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guard let selectedWindow = tabGroup.selectedWindow else { return }
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guard let selectedIndex = tabbedWindows.firstIndex(where: { $0 == selectedWindow }) else { return }
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if (tabIndex == GHOSTTY_TAB_PREVIOUS.rawValue) {
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finalIndex = selectedIndex - 1
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} else if (tabIndex == GHOSTTY_TAB_NEXT.rawValue) {
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finalIndex = selectedIndex + 1
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} else {
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return
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}
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} else {
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// Tabs are 0-indexed here, so we subtract one from the key the user hit.
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finalIndex = Int(tabIndex - 1)
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}
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guard finalIndex >= 0 && finalIndex < tabbedWindows.count else { return }
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let targetWindow = tabbedWindows[finalIndex]
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targetWindow.makeKeyAndOrderFront(nil)
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}
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@objc private func onToggleFullscreen(notification: SwiftUI.Notification) {
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guard let target = notification.object as? Ghostty.SurfaceView else { return }
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guard target == self.focusedSurface else { return }
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// We need a window to fullscreen
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guard let window = self.window else { return }
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// Check whether we use non-native fullscreen
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guard let useNonNativeFullscreenAny = notification.userInfo?[Ghostty.Notification.NonNativeFullscreenKey] else { return }
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guard let useNonNativeFullscreen = useNonNativeFullscreenAny as? ghostty_non_native_fullscreen_e else { return }
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self.fullscreenHandler.toggleFullscreen(window: window, nonNativeFullscreen: useNonNativeFullscreen)
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// For some reason focus always gets lost when we toggle fullscreen, so we set it back.
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if let focusedSurface {
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Ghostty.moveFocus(to: focusedSurface)
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}
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}
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@objc private func onConfirmUnsafePaste(notification: SwiftUI.Notification) {
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guard let target = notification.object as? Ghostty.SurfaceView else { return }
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guard target == self.focusedSurface else { return }
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guard let surface = target.surface else { return }
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// We need a window
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guard let window = self.window else { return }
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// Check whether we use non-native fullscreen
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guard let str = notification.userInfo?[Ghostty.Notification.UnsafePasteStrKey] as? String else { return }
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guard let state = notification.userInfo?[Ghostty.Notification.UnsafePasteStateKey] as? UnsafeMutableRawPointer? else { return }
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// If we already have a paste protection view up, we ignore this request.
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// This shouldn't be possible...
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guard self.pasteProtection == nil else {
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Ghostty.AppState.completeClipboardRequest(surface, data: "", state: state, confirmed: true)
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return
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}
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// Show our paste confirmation
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self.pasteProtection = PasteProtectionController(
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surface: surface,
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contents: str,
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state: state,
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delegate: self
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)
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window.beginSheet(self.pasteProtection!.window!)
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}
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}
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