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Merge pull request #1327 from mitchellh/ios-adventures

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More apple things cross-platform: Metal renderer, SurfaceView, etc.
This commit is contained in:
Mitchell Hashimoto
2024-01-19 07:50:44 -08:00
committed by GitHub
parent cf284b1363 8b01d79502
commit e7169afffa
11 changed files with 1280 additions and 1032 deletions
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6
include/ghostty.h
View File

@ -33,6 +33,7 @@ typedef void *ghostty_inspector_t;
typedef enum {
GHOSTTY_PLATFORM_INVALID,
GHOSTTY_PLATFORM_MACOS,
GHOSTTY_PLATFORM_IOS,
} ghostty_platform_e;
typedef enum {
@ -358,8 +359,13 @@ typedef struct {
void *nsview;
} ghostty_platform_macos_s;
typedef struct {
void *uiview;
} ghostty_platform_ios_s;
typedef union {
ghostty_platform_macos_s macos;
ghostty_platform_ios_s ios;
} ghostty_platform_u;
typedef struct {

18
macos/Ghostty.xcodeproj/project.pbxproj
View File

@ -21,6 +21,12 @@
A51BFC272B30F1B800E92F16 /* Sparkle in Frameworks */ = {isa = PBXBuildFile; productRef = A51BFC262B30F1B800E92F16 /* Sparkle */; };
A51BFC2B2B30F6BE00E92F16 /* UpdateDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = A51BFC2A2B30F6BE00E92F16 /* UpdateDelegate.swift */; };
A5278A9B2AA05B2600CD3039 /* Ghostty.Input.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5278A9A2AA05B2600CD3039 /* Ghostty.Input.swift */; };
A5333E1C2B5A1CE3008AEFF7 /* CrossKit.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5333E1B2B5A1CE3008AEFF7 /* CrossKit.swift */; };
A5333E1D2B5A1CE3008AEFF7 /* CrossKit.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5333E1B2B5A1CE3008AEFF7 /* CrossKit.swift */; };
A5333E202B5A2111008AEFF7 /* SurfaceView_UIKit.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5333E152B59DE8E008AEFF7 /* SurfaceView_UIKit.swift */; };
A5333E222B5A2128008AEFF7 /* SurfaceView_AppKit.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5333E212B5A2128008AEFF7 /* SurfaceView_AppKit.swift */; };
A5333E232B5A219A008AEFF7 /* SurfaceView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A55B7BBB29B6FC330055DE60 /* SurfaceView.swift */; };
A5333E242B5A22D9008AEFF7 /* Ghostty.Shell.swift in Sources */ = {isa = PBXBuildFile; fileRef = A56D58852ACDDB4100508D2C /* Ghostty.Shell.swift */; };
A53426352A7DA53D00EBB7A2 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = A53426342A7DA53D00EBB7A2 /* AppDelegate.swift */; };
A535B9DA299C569B0017E2E4 /* ErrorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A535B9D9299C569B0017E2E4 /* ErrorView.swift */; };
A53D0C8E2B53B0EA00305CE6 /* GhosttyKit.xcframework in Frameworks */ = {isa = PBXBuildFile; fileRef = A5D495A1299BEC7E00DD1313 /* GhosttyKit.xcframework */; };
@ -75,6 +81,9 @@
A51BFC282B30F26D00E92F16 /* GhosttyDebug.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = GhosttyDebug.entitlements; sourceTree = "<group>"; };
A51BFC2A2B30F6BE00E92F16 /* UpdateDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UpdateDelegate.swift; sourceTree = "<group>"; };
A5278A9A2AA05B2600CD3039 /* Ghostty.Input.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Ghostty.Input.swift; sourceTree = "<group>"; };
A5333E152B59DE8E008AEFF7 /* SurfaceView_UIKit.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SurfaceView_UIKit.swift; sourceTree = "<group>"; };
A5333E1B2B5A1CE3008AEFF7 /* CrossKit.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CrossKit.swift; sourceTree = "<group>"; };
A5333E212B5A2128008AEFF7 /* SurfaceView_AppKit.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SurfaceView_AppKit.swift; sourceTree = "<group>"; };
A53426342A7DA53D00EBB7A2 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
A535B9D9299C569B0017E2E4 /* ErrorView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ErrorView.swift; sourceTree = "<group>"; };
A53D0C932B53B43700305CE6 /* iOSApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = iOSApp.swift; sourceTree = "<group>"; };
@ -173,6 +182,7 @@
isa = PBXGroup;
children = (
A5CEAFFE29C2410700646FDA /* Backport.swift */,
A5333E1B2B5A1CE3008AEFF7 /* CrossKit.swift */,
A5D0AF3C2B37804400D21823 /* CodableBridge.swift */,
8503D7C62A549C66006CFF3D /* FullScreenHandler.swift */,
A59630962AEE163600D64628 /* HostingWindow.swift */,
@ -236,6 +246,8 @@
children = (
A55B7BB729B6F53A0055DE60 /* Package.swift */,
A55B7BBB29B6FC330055DE60 /* SurfaceView.swift */,
A5333E212B5A2128008AEFF7 /* SurfaceView_AppKit.swift */,
A5333E152B59DE8E008AEFF7 /* SurfaceView_UIKit.swift */,
A59FB5CE2AE0DB50009128F3 /* InspectorView.swift */,
A53D0C992B543F3B00305CE6 /* Ghostty.App.swift */,
A514C8D52B54A16400493A16 /* Ghostty.Config.swift */,
@ -457,8 +469,10 @@
A59630A02AEF6AEB00D64628 /* TerminalManager.swift in Sources */,
A51BFC2B2B30F6BE00E92F16 /* UpdateDelegate.swift in Sources */,
A53426352A7DA53D00EBB7A2 /* AppDelegate.swift in Sources */,
A5333E222B5A2128008AEFF7 /* SurfaceView_AppKit.swift in Sources */,
A5CDF1952AAFA19600513312 /* ConfigurationErrorsView.swift in Sources */,
A55B7BBC29B6FC330055DE60 /* SurfaceView.swift in Sources */,
A5333E1C2B5A1CE3008AEFF7 /* CrossKit.swift in Sources */,
A59444F729A2ED5200725BBA /* SettingsView.swift in Sources */,
A56D58862ACDDB4100508D2C /* Ghostty.Shell.swift in Sources */,
A59630A22AF0415000D64628 /* Ghostty.TerminalSplit.swift in Sources */,
@ -487,8 +501,12 @@
files = (
A53D0C942B53B43700305CE6 /* iOSApp.swift in Sources */,
A514C8D72B54A16400493A16 /* Ghostty.Config.swift in Sources */,
A5333E232B5A219A008AEFF7 /* SurfaceView.swift in Sources */,
A5333E202B5A2111008AEFF7 /* SurfaceView_UIKit.swift in Sources */,
A5333E1D2B5A1CE3008AEFF7 /* CrossKit.swift in Sources */,
A53D0C9C2B543F7B00305CE6 /* Package.swift in Sources */,
A53D0C9B2B543F3B00305CE6 /* Ghostty.App.swift in Sources */,
A5333E242B5A22D9008AEFF7 /* Ghostty.Shell.swift in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};

21
macos/Sources/App/iOS/iOSApp.swift
View File

@ -6,13 +6,26 @@ struct Ghostty_iOSApp: App {
var body: some Scene {
WindowGroup {
iOS_ContentView()
iOS_GhosttyTerminal()
.environmentObject(ghostty_app)
}
}
}
struct iOS_ContentView: View {
struct iOS_GhosttyTerminal: View {
@EnvironmentObject private var ghostty_app: Ghostty.App
var body: some View {
ZStack {
// Make sure that our background color extends to all parts of the screen
Color(ghostty_app.config.backgroundColor).ignoresSafeArea()
Ghostty.Terminal()
}
}
}
struct iOS_GhosttyInitView: View {
@EnvironmentObject private var ghostty_app: Ghostty.App
var body: some View {
@ -27,7 +40,3 @@ struct iOS_ContentView: View {
.padding()
}
}
#Preview {
iOS_ContentView()
}

1014
macos/Sources/Ghostty/SurfaceView.swift
View File

File diff suppressed because it is too large Load Diff

955
macos/Sources/Ghostty/SurfaceView_AppKit.swift Normal file
View File

@ -0,0 +1,955 @@
import SwiftUI
import UserNotifications
import GhosttyKit
extension Ghostty {
/// The NSView implementation for a terminal surface.
class SurfaceView: OSView, ObservableObject {
/// Unique ID per surface
let uuid: UUID
// The current title of the surface as defined by the pty. This can be
// changed with escape codes. This is public because the callbacks go
// to the app level and it is set from there.
@Published var title: String = "👻"
// The cell size of this surface. This is set by the core when the
// surface is first created and any time the cell size changes (i.e.
// when the font size changes). This is used to allow windows to be
// resized in discrete steps of a single cell.
@Published var cellSize: NSSize = .zero
// The health state of the surface. This currently only reflects the
// renderer health. In the future we may want to make this an enum.
@Published var healthy: Bool = true
// Any error while initializing the surface.
@Published var error: Error? = nil
// An initial size to request for a window. This will only affect
// then the view is moved to a new window.
var initialSize: NSSize? = nil
// Returns true if quit confirmation is required for this surface to
// exit safely.
var needsConfirmQuit: Bool {
guard let surface = self.surface else { return false }
return ghostty_surface_needs_confirm_quit(surface)
}
/// Returns the pwd of the surface if it has one.
var pwd: String? {
guard let surface = self.surface else { return nil }
let v = String(unsafeUninitializedCapacity: 1024) {
Int(ghostty_surface_pwd(surface, $0.baseAddress, UInt($0.count)))
}
if (v.count == 0) { return nil }
return v
}
// Returns the inspector instance for this surface, or nil if the
// surface has been closed.
var inspector: ghostty_inspector_t? {
guard let surface = self.surface else { return nil }
return ghostty_surface_inspector(surface)
}
// True if the inspector should be visible
@Published var inspectorVisible: Bool = false {
didSet {
if (oldValue && !inspectorVisible) {
guard let surface = self.surface else { return }
ghostty_inspector_free(surface)
}
}
}
// Notification identifiers associated with this surface
var notificationIdentifiers: Set<String> = []
private(set) var surface: ghostty_surface_t?
private var markedText: NSMutableAttributedString
private var mouseEntered: Bool = false
private(set) var focused: Bool = true
private var cursor: NSCursor = .iBeam
private var cursorVisible: CursorVisibility = .visible
// This is set to non-null during keyDown to accumulate insertText contents
private var keyTextAccumulator: [String]? = nil
// We need to support being a first responder so that we can get input events
override var acceptsFirstResponder: Bool { return true }
// I don't think we need this but this lets us know we should redraw our layer
// so we'll use that to tell ghostty to refresh.
override var wantsUpdateLayer: Bool { return true }
// State machine for mouse cursor visibility because every call to
// NSCursor.hide/unhide must be balanced.
enum CursorVisibility {
case visible
case hidden
case pendingVisible
case pendingHidden
}
init(_ app: ghostty_app_t, baseConfig: SurfaceConfiguration? = nil, uuid: UUID? = nil) {
self.markedText = NSMutableAttributedString()
self.uuid = uuid ?? .init()
// Initialize with some default frame size. The important thing is that this
// is non-zero so that our layer bounds are non-zero so that our renderer
// can do SOMETHING.
super.init(frame: NSMakeRect(0, 0, 800, 600))
// Before we initialize the surface we want to register our notifications
// so there is no window where we can't receive them.
let center = NotificationCenter.default
center.addObserver(
self,
selector: #selector(onUpdateRendererHealth),
name: Ghostty.Notification.didUpdateRendererHealth,
object: self)
// Setup our surface. This will also initialize all the terminal IO.
let surface_cfg = baseConfig ?? SurfaceConfiguration()
var surface_cfg_c = surface_cfg.ghosttyConfig(view: self)
guard let surface = ghostty_surface_new(app, &surface_cfg_c) else {
self.error = AppError.surfaceCreateError
return
}
self.surface = surface;
// Setup our tracking area so we get mouse moved events
updateTrackingAreas()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) is not supported for this view")
}
deinit {
// Remove all of our notificationcenter subscriptions
let center = NotificationCenter.default
center.removeObserver(self)
// Whenever the surface is removed, we need to note that our restorable
// state is invalid to prevent the surface from being restored.
invalidateRestorableState()
trackingAreas.forEach { removeTrackingArea($0) }
// mouseExited is not called by AppKit one last time when the view
// closes so we do it manually to ensure our NSCursor state remains
// accurate.
if (mouseEntered) {
mouseExited(with: NSEvent())
}
guard let surface = self.surface else { return }
ghostty_surface_free(surface)
}
/// Close the surface early. This will free the associated Ghostty surface and the view will
/// no longer render. The view can never be used again. This is a way for us to free the
/// Ghostty resources while references may still be held to this view. I've found that SwiftUI
/// tends to hold this view longer than it should so we free the expensive stuff explicitly.
func close() {
// Remove any notifications associated with this surface
let identifiers = Array(self.notificationIdentifiers)
UNUserNotificationCenter.current().removeDeliveredNotifications(withIdentifiers: identifiers)
guard let surface = self.surface else { return }
ghostty_surface_free(surface)
self.surface = nil
}
func focusDidChange(_ focused: Bool) {
guard let surface = self.surface else { return }
ghostty_surface_set_focus(surface, focused)
}
func sizeDidChange(_ size: CGSize) {
guard let surface = self.surface else { return }
// Ghostty wants to know the actual framebuffer size... It is very important
// here that we use "size" and NOT the view frame. If we're in the middle of
// an animation (i.e. a fullscreen animation), the frame will not yet be updated.
// The size represents our final size we're going for.
let scaledSize = self.convertToBacking(size)
ghostty_surface_set_size(surface, UInt32(scaledSize.width), UInt32(scaledSize.height))
// Frame changes do not always call mouseEntered/mouseExited, so we do some
// calculations ourself to call those events.
if let window = self.window {
let mouseScreen = NSEvent.mouseLocation
let mouseWindow = window.convertPoint(fromScreen: mouseScreen)
let mouseView = self.convert(mouseWindow, from: nil)
let isEntered = self.isMousePoint(mouseView, in: bounds)
if (isEntered) {
mouseEntered(with: NSEvent())
} else {
mouseExited(with: NSEvent())
}
} else {
// If we don't have a window, then our mouse can NOT be in our view.
// When the window comes back, I believe this event fires again so
// we'll get a mouseEntered.
mouseExited(with: NSEvent())
}
}
func setCursorShape(_ shape: ghostty_mouse_shape_e) {
switch (shape) {
case GHOSTTY_MOUSE_SHAPE_DEFAULT:
cursor = .arrow
case GHOSTTY_MOUSE_SHAPE_CONTEXT_MENU:
cursor = .contextualMenu
case GHOSTTY_MOUSE_SHAPE_TEXT:
cursor = .iBeam
case GHOSTTY_MOUSE_SHAPE_CROSSHAIR:
cursor = .crosshair
case GHOSTTY_MOUSE_SHAPE_GRAB:
cursor = .openHand
case GHOSTTY_MOUSE_SHAPE_GRABBING:
cursor = .closedHand
case GHOSTTY_MOUSE_SHAPE_POINTER:
cursor = .pointingHand
case GHOSTTY_MOUSE_SHAPE_W_RESIZE:
cursor = .resizeLeft
case GHOSTTY_MOUSE_SHAPE_E_RESIZE:
cursor = .resizeRight
case GHOSTTY_MOUSE_SHAPE_N_RESIZE:
cursor = .resizeUp
case GHOSTTY_MOUSE_SHAPE_S_RESIZE:
cursor = .resizeDown
case GHOSTTY_MOUSE_SHAPE_NS_RESIZE:
cursor = .resizeUpDown
case GHOSTTY_MOUSE_SHAPE_EW_RESIZE:
cursor = .resizeLeftRight
case GHOSTTY_MOUSE_SHAPE_VERTICAL_TEXT:
cursor = .iBeamCursorForVerticalLayout
case GHOSTTY_MOUSE_SHAPE_NOT_ALLOWED:
cursor = .operationNotAllowed
default:
// We ignore unknown shapes.
return
}
// Set our cursor immediately if our mouse is over our window
if (mouseEntered) { cursorUpdate(with: NSEvent()) }
if let window = self.window {
window.invalidateCursorRects(for: self)
}
}
func setCursorVisibility(_ visible: Bool) {
switch (cursorVisible) {
case .visible:
// If we want to be visible, do nothing. If we want to be hidden
// enter the pending state.
if (visible) { return }
cursorVisible = .pendingHidden
case .hidden:
// If we want to be hidden, do nothing. If we want to be visible
// enter the pending state.
if (!visible) { return }
cursorVisible = .pendingVisible
case .pendingVisible:
// If we want to be visible, do nothing because we're already pending.
// If we want to be hidden, we're already hidden so reset state.
if (visible) { return }
cursorVisible = .hidden
case .pendingHidden:
// If we want to be hidden, do nothing because we're pending that switch.
// If we want to be visible, we're already visible so reset state.
if (!visible) { return }
cursorVisible = .visible
}
if (mouseEntered) {
cursorUpdate(with: NSEvent())
}
}
// MARK: - Notifications
@objc private func onUpdateRendererHealth(notification: SwiftUI.Notification) {
guard let healthAny = notification.userInfo?["health"] else { return }
guard let health = healthAny as? ghostty_renderer_health_e else { return }
healthy = health == GHOSTTY_RENDERER_HEALTH_OK
}
// MARK: - NSView
override func viewDidMoveToWindow() {
// Set our background blur if requested
setWindowBackgroundBlur(window)
}
/// This function sets the window background to blur if it is configured on the surface.
private func setWindowBackgroundBlur(_ targetWindow: NSWindow?) {
// Surface must desire transparency
guard let surface = self.surface,
ghostty_surface_transparent(surface) else { return }
// Our target should always be our own view window
guard let target = targetWindow,
let window = self.window,
target == window else { return }
// If our window is not visible, then delay this. This is possible specifically
// during state restoration but probably in other scenarios as well. To delay,
// we just loop directly on the dispatch queue.
guard window.isVisible else {
// Weak window so that if the window changes or is destroyed we aren't holding a ref
DispatchQueue.main.async { [weak self, weak window] in self?.setWindowBackgroundBlur(window) }
return
}
// Set the window transparency settings
window.isOpaque = false
window.hasShadow = false
window.backgroundColor = .clear
// If we have a blur, set the blur
ghostty_set_window_background_blur(surface, Unmanaged.passUnretained(window).toOpaque())
}
override func becomeFirstResponder() -> Bool {
let result = super.becomeFirstResponder()
if (result) { focused = true }
return result
}
override func resignFirstResponder() -> Bool {
let result = super.resignFirstResponder()
// We sometimes call this manually (see SplitView) as a way to force us to
// yield our focus state.
if (result) {
focusDidChange(false)
focused = false
}
return result
}
override func updateTrackingAreas() {
// To update our tracking area we just recreate it all.
trackingAreas.forEach { removeTrackingArea($0) }
// This tracking area is across the entire frame to notify us of mouse movements.
addTrackingArea(NSTrackingArea(
rect: frame,
options: [
.mouseEnteredAndExited,
.mouseMoved,
// Only send mouse events that happen in our visible (not obscured) rect
.inVisibleRect,
// We want active always because we want to still send mouse reports
// even if we're not focused or key.
.activeAlways,
],
owner: self,
userInfo: nil))
}
override func resetCursorRects() {
discardCursorRects()
addCursorRect(frame, cursor: self.cursor)
}
override func viewDidChangeBackingProperties() {
guard let surface = self.surface else { return }
// Detect our X/Y scale factor so we can update our surface
let fbFrame = self.convertToBacking(self.frame)
let xScale = fbFrame.size.width / self.frame.size.width
let yScale = fbFrame.size.height / self.frame.size.height
ghostty_surface_set_content_scale(surface, xScale, yScale)
// When our scale factor changes, so does our fb size so we send that too
ghostty_surface_set_size(surface, UInt32(fbFrame.size.width), UInt32(fbFrame.size.height))
}
override func updateLayer() {
guard let surface = self.surface else { return }
ghostty_surface_refresh(surface);
}
override func acceptsFirstMouse(for event: NSEvent?) -> Bool {
// "Override this method in a subclass to allow instances to respond to
// click-through. This allows the user to click on a view in an inactive
// window, activating the view with one click, instead of clicking first
// to make the window active and then clicking the view."
return true
}
override func mouseDown(with event: NSEvent) {
guard let surface = self.surface else { return }
let mods = Ghostty.ghosttyMods(event.modifierFlags)
ghostty_surface_mouse_button(surface, GHOSTTY_MOUSE_PRESS, GHOSTTY_MOUSE_LEFT, mods)
}
override func mouseUp(with event: NSEvent) {
guard let surface = self.surface else { return }
let mods = Ghostty.ghosttyMods(event.modifierFlags)
ghostty_surface_mouse_button(surface, GHOSTTY_MOUSE_RELEASE, GHOSTTY_MOUSE_LEFT, mods)
}
override func otherMouseDown(with event: NSEvent) {
guard let surface = self.surface else { return }
guard event.buttonNumber == 2 else { return }
let mods = Ghostty.ghosttyMods(event.modifierFlags)
ghostty_surface_mouse_button(surface, GHOSTTY_MOUSE_PRESS, GHOSTTY_MOUSE_MIDDLE, mods)
}
override func otherMouseUp(with event: NSEvent) {
guard let surface = self.surface else { return }
guard event.buttonNumber == 2 else { return }
let mods = Ghostty.ghosttyMods(event.modifierFlags)
ghostty_surface_mouse_button(surface, GHOSTTY_MOUSE_RELEASE, GHOSTTY_MOUSE_MIDDLE, mods)
}
override func rightMouseDown(with event: NSEvent) {
guard let surface = self.surface else { return }
let mods = Ghostty.ghosttyMods(event.modifierFlags)
ghostty_surface_mouse_button(surface, GHOSTTY_MOUSE_PRESS, GHOSTTY_MOUSE_RIGHT, mods)
}
override func rightMouseUp(with event: NSEvent) {
guard let surface = self.surface else { return }
let mods = Ghostty.ghosttyMods(event.modifierFlags)
ghostty_surface_mouse_button(surface, GHOSTTY_MOUSE_RELEASE, GHOSTTY_MOUSE_RIGHT, mods)
}
override func mouseMoved(with event: NSEvent) {
guard let surface = self.surface else { return }
// Convert window position to view position. Note (0, 0) is bottom left.
let pos = self.convert(event.locationInWindow, from: nil)
ghostty_surface_mouse_pos(surface, pos.x, frame.height - pos.y)
}
override func mouseDragged(with event: NSEvent) {
self.mouseMoved(with: event)
}
override func mouseEntered(with event: NSEvent) {
// For reasons unknown (Cocoaaaaaaaaa), mouseEntered is called
// multiple times in an unbalanced way with mouseExited when a new
// tab is created. In this scenario, we only want to process our
// callback once since this is stateful and we expect balancing.
if (mouseEntered) { return }
mouseEntered = true
// Update our cursor when we enter so we fully process our
// cursorVisible state.
cursorUpdate(with: NSEvent())
}
override func mouseExited(with event: NSEvent) {
// See mouseEntered
if (!mouseEntered) { return }
mouseEntered = false
// If the mouse is currently hidden, we want to show it when we exit
// this view. We go through the cursorVisible dance so that only
// cursorUpdate manages cursor state.
if (cursorVisible == .hidden) {
cursorVisible = .pendingVisible
cursorUpdate(with: NSEvent())
assert(cursorVisible == .visible)
// We set the state to pending hidden again for the next time
// we enter.
cursorVisible = .pendingHidden
}
}
override func scrollWheel(with event: NSEvent) {
guard let surface = self.surface else { return }
// Builds up the "input.ScrollMods" bitmask
var mods: Int32 = 0
var x = event.scrollingDeltaX
var y = event.scrollingDeltaY
if event.hasPreciseScrollingDeltas {
mods = 1
// We do a 2x speed multiplier. This is subjective, it "feels" better to me.
x *= 2;
y *= 2;
// TODO(mitchellh): do we have to scale the x/y here by window scale factor?
}
// Determine our momentum value
var momentum: ghostty_input_mouse_momentum_e = GHOSTTY_MOUSE_MOMENTUM_NONE
switch (event.momentumPhase) {
case .began:
momentum = GHOSTTY_MOUSE_MOMENTUM_BEGAN
case .stationary:
momentum = GHOSTTY_MOUSE_MOMENTUM_STATIONARY
case .changed:
momentum = GHOSTTY_MOUSE_MOMENTUM_CHANGED
case .ended:
momentum = GHOSTTY_MOUSE_MOMENTUM_ENDED
case .cancelled:
momentum = GHOSTTY_MOUSE_MOMENTUM_CANCELLED
case .mayBegin:
momentum = GHOSTTY_MOUSE_MOMENTUM_MAY_BEGIN
default:
break
}
// Pack our momentum value into the mods bitmask
mods |= Int32(momentum.rawValue) << 1
ghostty_surface_mouse_scroll(surface, x, y, mods)
}
override func cursorUpdate(with event: NSEvent) {
switch (cursorVisible) {
case .visible, .hidden:
// Do nothing, stable state
break
case .pendingHidden:
NSCursor.hide()
cursorVisible = .hidden
case .pendingVisible:
NSCursor.unhide()
cursorVisible = .visible
}
cursor.set()
}
override func keyDown(with event: NSEvent) {
guard let surface = self.surface else {
self.interpretKeyEvents([event])
return
}
// We need to translate the mods (maybe) to handle configs such as option-as-alt
let translationModsGhostty = Ghostty.eventModifierFlags(
mods: ghostty_surface_key_translation_mods(
surface,
Ghostty.ghosttyMods(event.modifierFlags)
)
)
// There are hidden bits set in our event that matter for certain dead keys
// so we can't use translationModsGhostty directly. Instead, we just check
// for exact states and set them.
var translationMods = event.modifierFlags
for flag in [NSEvent.ModifierFlags.shift, .control, .option, .command] {
if (translationModsGhostty.contains(flag)) {
translationMods.insert(flag)
} else {
translationMods.remove(flag)
}
}
// If the translation modifiers are not equal to our original modifiers
// then we need to construct a new NSEvent. If they are equal we reuse the
// old one. IMPORTANT: we MUST reuse the old event if they're equal because
// this keeps things like Korean input working. There must be some object
// equality happening in AppKit somewhere because this is required.
let translationEvent: NSEvent
if (translationMods == event.modifierFlags) {
translationEvent = event
} else {
translationEvent = NSEvent.keyEvent(
with: event.type,
location: event.locationInWindow,
modifierFlags: translationMods,
timestamp: event.timestamp,
windowNumber: event.windowNumber,
context: nil,
characters: event.characters(byApplyingModifiers: translationMods) ?? "",
charactersIgnoringModifiers: event.charactersIgnoringModifiers ?? "",
isARepeat: event.isARepeat,
keyCode: event.keyCode
) ?? event
}
let action = event.isARepeat ? GHOSTTY_ACTION_REPEAT : GHOSTTY_ACTION_PRESS
// By setting this to non-nil, we note that we're in a keyDown event. From here,
// we call interpretKeyEvents so that we can handle complex input such as Korean
// language.
keyTextAccumulator = []
defer { keyTextAccumulator = nil }
// We need to know what the length of marked text was before this event to
// know if these events cleared it.
let markedTextBefore = markedText.length > 0
self.interpretKeyEvents([translationEvent])
// If we have text, then we've composed a character, send that down. We do this
// first because if we completed a preedit, the text will be available here
// AND we'll have a preedit.
var handled: Bool = false
if let list = keyTextAccumulator, list.count > 0 {
handled = true
for text in list {
keyAction(action, event: event, text: text)
}
}
// If we have marked text, we're in a preedit state. Send that down.
// If we don't have marked text but we had marked text before, then the preedit
// was cleared so we want to send down an empty string to ensure we've cleared
// the preedit.
if (markedText.length > 0 || markedTextBefore) {
handled = true
keyAction(action, event: event, preedit: markedText.string)
}
if (!handled) {
// No text or anything, we want to handle this manually.
keyAction(action, event: event)
}
}
override func keyUp(with event: NSEvent) {
keyAction(GHOSTTY_ACTION_RELEASE, event: event)
}
/// Special case handling for some control keys
override func performKeyEquivalent(with event: NSEvent) -> Bool {
// Only process keys when Control is the only modifier
if (!event.modifierFlags.contains(.control) ||
!event.modifierFlags.isDisjoint(with: [.shift, .command, .option])) {
return false
}
// Only process key down events
if (event.type != .keyDown) {
return false
}
let equivalent: String
switch (event.charactersIgnoringModifiers) {
case "/":
// Treat C-/ as C-_. We do this because C-/ makes macOS make a beep
// sound and we don't like the beep sound.
equivalent = "_"
default:
// Ignore other events
return false
}
let newEvent = NSEvent.keyEvent(
with: .keyDown,
location: event.locationInWindow,
modifierFlags: .control,
timestamp: event.timestamp,
windowNumber: event.windowNumber,
context: nil,
characters: equivalent,
charactersIgnoringModifiers: equivalent,
isARepeat: event.isARepeat,
keyCode: event.keyCode
)
self.keyDown(with: newEvent!)
return true
}
override func flagsChanged(with event: NSEvent) {
let mod: UInt32;
switch (event.keyCode) {
case 0x39: mod = GHOSTTY_MODS_CAPS.rawValue
case 0x38, 0x3C: mod = GHOSTTY_MODS_SHIFT.rawValue
case 0x3B, 0x3E: mod = GHOSTTY_MODS_CTRL.rawValue
case 0x3A, 0x3D: mod = GHOSTTY_MODS_ALT.rawValue
case 0x37, 0x36: mod = GHOSTTY_MODS_SUPER.rawValue
default: return
}
// The keyAction function will do this AGAIN below which sucks to repeat
// but this is super cheap and flagsChanged isn't that common.
let mods = Ghostty.ghosttyMods(event.modifierFlags)
// If the key that pressed this is active, its a press, else release.
var action = GHOSTTY_ACTION_RELEASE
if (mods.rawValue & mod != 0) {
// If the key is pressed, its slightly more complicated, because we
// want to check if the pressed modifier is the correct side. If the
// correct side is pressed then its a press event otherwise its a release
// event with the opposite modifier still held.
let sidePressed: Bool
switch (event.keyCode) {
case 0x3C:
sidePressed = event.modifierFlags.rawValue & UInt(NX_DEVICERSHIFTKEYMASK) != 0;
case 0x3E:
sidePressed = event.modifierFlags.rawValue & UInt(NX_DEVICERCTLKEYMASK) != 0;
case 0x3D:
sidePressed = event.modifierFlags.rawValue & UInt(NX_DEVICERALTKEYMASK) != 0;
case 0x36:
sidePressed = event.modifierFlags.rawValue & UInt(NX_DEVICERCMDKEYMASK) != 0;
default:
sidePressed = true
}
if (sidePressed) {
action = GHOSTTY_ACTION_PRESS
}
}
keyAction(action, event: event)
}
private func keyAction(_ action: ghostty_input_action_e, event: NSEvent) {
guard let surface = self.surface else { return }
var key_ev = ghostty_input_key_s()
key_ev.action = action
key_ev.mods = Ghostty.ghosttyMods(event.modifierFlags)
key_ev.keycode = UInt32(event.keyCode)
key_ev.text = nil
key_ev.composing = false
ghostty_surface_key(surface, key_ev)
}
private func keyAction(_ action: ghostty_input_action_e, event: NSEvent, preedit: String) {
guard let surface = self.surface else { return }
preedit.withCString { ptr in
var key_ev = ghostty_input_key_s()
key_ev.action = action
key_ev.mods = Ghostty.ghosttyMods(event.modifierFlags)
key_ev.keycode = UInt32(event.keyCode)
key_ev.text = ptr
key_ev.composing = true
ghostty_surface_key(surface, key_ev)
}
}
private func keyAction(_ action: ghostty_input_action_e, event: NSEvent, text: String) {
guard let surface = self.surface else { return }
text.withCString { ptr in
var key_ev = ghostty_input_key_s()
key_ev.action = action
key_ev.mods = Ghostty.ghosttyMods(event.modifierFlags)
key_ev.keycode = UInt32(event.keyCode)
key_ev.text = ptr
ghostty_surface_key(surface, key_ev)
}
}
// MARK: Menu Handlers
@IBAction func copy(_ sender: Any?) {
guard let surface = self.surface else { return }
let action = "copy_to_clipboard"
if (!ghostty_surface_binding_action(surface, action, UInt(action.count))) {
AppDelegate.logger.warning("action failed action=\(action)")
}
}
@IBAction func paste(_ sender: Any?) {
guard let surface = self.surface else { return }
let action = "paste_from_clipboard"
if (!ghostty_surface_binding_action(surface, action, UInt(action.count))) {
AppDelegate.logger.warning("action failed action=\(action)")
}
}
@IBAction func pasteAsPlainText(_ sender: Any?) {
guard let surface = self.surface else { return }
let action = "paste_from_clipboard"
if (!ghostty_surface_binding_action(surface, action, UInt(action.count))) {
AppDelegate.logger.warning("action failed action=\(action)")
}
}
@IBAction override func selectAll(_ sender: Any?) {
guard let surface = self.surface else { return }
let action = "select_all"
if (!ghostty_surface_binding_action(surface, action, UInt(action.count))) {
AppDelegate.logger.warning("action failed action=\(action)")
}
}
/// Show a user notification and associate it with this surface
func showUserNotification(title: String, body: String) {
let content = UNMutableNotificationContent()
content.title = title
content.subtitle = self.title
content.body = body
content.sound = UNNotificationSound.default
content.categoryIdentifier = Ghostty.userNotificationCategory
content.userInfo = ["surface": self.uuid.uuidString]
let uuid = UUID().uuidString
let request = UNNotificationRequest(
identifier: uuid,
content: content,
trigger: nil
)
UNUserNotificationCenter.current().add(request) { error in
if let error = error {
AppDelegate.logger.error("Error scheduling user notification: \(error)")
return
}
self.notificationIdentifiers.insert(uuid)
}
}
/// Handle a user notification click
func handleUserNotification(notification: UNNotification, focus: Bool) {
let id = notification.request.identifier
guard self.notificationIdentifiers.remove(id) != nil else { return }
if focus {
self.window?.makeKeyAndOrderFront(self)
Ghostty.moveFocus(to: self)
}
}
}
}
// MARK: - NSTextInputClient
extension Ghostty.SurfaceView: NSTextInputClient {
func hasMarkedText() -> Bool {
return markedText.length > 0
}
func markedRange() -> NSRange {
guard markedText.length > 0 else { return NSRange() }
return NSRange(0...(markedText.length-1))
}
func selectedRange() -> NSRange {
return NSRange()
}
func setMarkedText(_ string: Any, selectedRange: NSRange, replacementRange: NSRange) {
switch string {
case let v as NSAttributedString:
self.markedText = NSMutableAttributedString(attributedString: v)
case let v as String:
self.markedText = NSMutableAttributedString(string: v)
default:
print("unknown marked text: \(string)")
}
}
func unmarkText() {
self.markedText.mutableString.setString("")
}
func validAttributesForMarkedText() -> [NSAttributedString.Key] {
return []
}
func attributedSubstring(forProposedRange range: NSRange, actualRange: NSRangePointer?) -> NSAttributedString? {
return nil
}
func characterIndex(for point: NSPoint) -> Int {
return 0
}
func firstRect(forCharacterRange range: NSRange, actualRange: NSRangePointer?) -> NSRect {
guard let surface = self.surface else {
return NSMakeRect(frame.origin.x, frame.origin.y, 0, 0)
}
// Ghostty will tell us where it thinks an IME keyboard should render.
var x: Double = 0;
var y: Double = 0;
ghostty_surface_ime_point(surface, &x, &y)
// Ghostty coordinates are in top-left (0, 0) so we have to convert to
// bottom-left since that is what UIKit expects
let rect = NSMakeRect(x, frame.size.height - y, 0, 0)
// Convert from view to screen coordinates
guard let window = self.window else { return rect }
return window.convertToScreen(rect)
}
func insertText(_ string: Any, replacementRange: NSRange) {
// We must have an associated event
guard NSApp.currentEvent != nil else { return }
guard let surface = self.surface else { return }
// We want the string view of the any value
var chars = ""
switch (string) {
case let v as NSAttributedString:
chars = v.string
case let v as String:
chars = v
default:
return
}
// If insertText is called, our preedit must be over.
unmarkText()
// If we have an accumulator we're in another key event so we just
// accumulate and return.
if var acc = keyTextAccumulator {
acc.append(chars)
keyTextAccumulator = acc
return
}
let len = chars.utf8CString.count
if (len == 0) { return }
chars.withCString { ptr in
// len includes the null terminator so we do len - 1
ghostty_surface_text(surface, ptr, UInt(len - 1))
}
}
override func doCommand(by selector: Selector) {
// This currently just prevents NSBeep from interpretKeyEvents but in the future
// we may want to make some of this work.
print("SEL: \(selector)")
}
}

90
macos/Sources/Ghostty/SurfaceView_UIKit.swift Normal file
View File

@ -0,0 +1,90 @@
import SwiftUI
import GhosttyKit
extension Ghostty {
/// The UIView implementation for a terminal surface.
class SurfaceView: UIView, ObservableObject {
/// Unique ID per surface
let uuid: UUID
// The current title of the surface as defined by the pty. This can be
// changed with escape codes. This is public because the callbacks go
// to the app level and it is set from there.
@Published var title: String = "👻"
// The cell size of this surface. This is set by the core when the
// surface is first created and any time the cell size changes (i.e.
// when the font size changes). This is used to allow windows to be
// resized in discrete steps of a single cell.
@Published var cellSize: OSSize = .zero
// The health state of the surface. This currently only reflects the
// renderer health. In the future we may want to make this an enum.
@Published var healthy: Bool = true
// Any error while initializing the surface.
@Published var error: Error? = nil
private(set) var surface: ghostty_surface_t?
init(_ app: ghostty_app_t, baseConfig: SurfaceConfiguration? = nil, uuid: UUID? = nil) {
self.uuid = uuid ?? .init()
// Initialize with some default frame size. The important thing is that this
// is non-zero so that our layer bounds are non-zero so that our renderer
// can do SOMETHING.
super.init(frame: CGRect(x: 0, y: 0, width: 800, height: 600))
// Setup our surface. This will also initialize all the terminal IO.
let surface_cfg = baseConfig ?? SurfaceConfiguration()
var surface_cfg_c = surface_cfg.ghosttyConfig(view: self)
guard let surface = ghostty_surface_new(app, &surface_cfg_c) else {
// TODO
return
}
self.surface = surface;
}
required init?(coder: NSCoder) {
fatalError("init(coder:) is not supported for this view")
}
deinit {
guard let surface = self.surface else { return }
ghostty_surface_free(surface)
}
func focusDidChange(_ focused: Bool) {
guard let surface = self.surface else { return }
ghostty_surface_set_focus(surface, focused)
}
func sizeDidChange(_ size: CGSize) {
guard let surface = self.surface else { return }
// Ghostty wants to know the actual framebuffer size... It is very important
// here that we use "size" and NOT the view frame. If we're in the middle of
// an animation (i.e. a fullscreen animation), the frame will not yet be updated.
// The size represents our final size we're going for.
let scale = self.contentScaleFactor
ghostty_surface_set_content_scale(surface, scale, scale)
ghostty_surface_set_size(
surface,
UInt32(size.width * scale),
UInt32(size.height * scale)
)
}
// MARK: UIView
override class var layerClass: AnyClass {
get {
return CAMetalLayer.self
}
}
override func didMoveToWindow() {
sizeDidChange(frame.size)
}
}
}

54
macos/Sources/Helpers/CrossKit.swift Normal file
View File

@ -0,0 +1,54 @@
// This file is a helper to bridge some types that are effectively identical
// between AppKit and UIKit.
import SwiftUI
#if canImport(AppKit)
import AppKit
typealias OSView = NSView
typealias OSColor = NSColor
typealias OSSize = NSSize
protocol OSViewRepresentable: NSViewRepresentable where NSViewType == OSViewType {
associatedtype OSViewType: NSView
func makeOSView(context: Context) -> OSViewType
func updateOSView(_ osView: OSViewType, context: Context)
}
extension OSViewRepresentable {
func makeNSView(context: Context) -> OSViewType {
makeOSView(context: context)
}
func updateNSView(_ nsView: OSViewType, context: Context) {
updateOSView(nsView, context: context)
}
}
#elseif canImport(UIKit)
import UIKit
typealias OSView = UIView
typealias OSColor = UIColor
typealias OSSize = CGSize
protocol OSViewRepresentable: UIViewRepresentable {
associatedtype OSViewType: UIView
func makeOSView(context: Context) -> OSViewType
func updateOSView(_ osView: OSViewType, context: Context)
}
extension OSViewRepresentable {
func makeUIView(context: Context) -> OSViewType {
makeOSView(context: context)
}
func updateUIView(_ uiView: OSViewType, context: Context) {
updateOSView(uiView, context: context)
}
}
#endif

5
src/Surface.zig
View File

@ -429,7 +429,7 @@ pub fn init(
// people add other emoji fonts to their system, we always want to
// prefer the official one. Users can override this by explicitly
// specifying a font-family for emoji.
if (comptime builtin.os.tag == .macos) apple_emoji: {
if (comptime builtin.target.isDarwin()) apple_emoji: {
const disco = group.discover orelse break :apple_emoji;
var disco_it = try disco.discover(alloc, .{
.family = "Apple Color Emoji",
@ -442,7 +442,7 @@ pub fn init(
// Emoji fallback. We don't include this on Mac since Mac is expected
// to always have the Apple Emoji available on the system.
if (builtin.os.tag != .macos or font.Discover == void) {
if (comptime !builtin.target.isDarwin() or font.Discover == void) {
_ = try group.addFace(
.regular,
.{ .fallback_loaded = try font.Face.init(font_lib, face_emoji_ttf, group.faceOptions()) },
@ -488,6 +488,7 @@ pub fn init(
.balance = config.@"window-padding-balance",
},
.surface_mailbox = .{ .surface = self, .app = app_mailbox },
.rt_surface = rt_surface,
});
errdefer renderer_impl.deinit();

18
src/apprt/embedded.zig
View File

@ -234,6 +234,7 @@ pub const App = struct {
/// Platform-specific configuration for libghostty.
pub const Platform = union(PlatformTag) {
macos: MacOS,
ios: IOS,
// If our build target for libghostty is not darwin then we do
// not include macos support at all.
@ -242,12 +243,21 @@ pub const Platform = union(PlatformTag) {
nsview: objc.Object,
} else void;
pub const IOS = if (builtin.target.isDarwin()) struct {
/// The view to render the surface on.
uiview: objc.Object,
} else void;
// The C ABI compatible version of this union. The tag is expected
// to be stored elsewhere.
pub const C = extern union {
macos: extern struct {
nsview: ?*anyopaque,
},
ios: extern struct {
uiview: ?*anyopaque,
},
};
/// Initialize a Platform a tag and configuration from the C ABI.
@ -260,6 +270,13 @@ pub const Platform = union(PlatformTag) {
break :macos error.NSViewMustBeSet);
break :macos .{ .macos = .{ .nsview = nsview } };
} else error.UnsupportedPlatform,
.ios => if (IOS != void) ios: {
const config = c_platform.ios;
const uiview = objc.Object.fromId(config.uiview orelse
break :ios error.UIViewMustBeSet);
break :ios .{ .ios = .{ .uiview = uiview } };
} else error.UnsupportedPlatform,
};
}
};
@ -269,6 +286,7 @@ pub const PlatformTag = enum(c_int) {
// from the C API.
macos = 1,
ios = 2,
};
pub const Surface = struct {

122
src/renderer/Metal.zig
View File

@ -115,7 +115,7 @@ buf_instance: InstanceBuffer, // MTLBuffer
/// Metal objects
device: objc.Object, // MTLDevice
queue: objc.Object, // MTLCommandQueue
swapchain: objc.Object, // CAMetalLayer
layer: objc.Object, // CAMetalLayer
texture_greyscale: objc.Object, // MTLTexture
texture_color: objc.Object, // MTLTexture
@ -262,20 +262,77 @@ pub fn init(alloc: Allocator, options: renderer.Options) !Metal {
defer arena.deinit();
const arena_alloc = arena.allocator();
const ViewInfo = struct {
view: objc.Object,
scaleFactor: f64,
};
// Get the metadata about our underlying view that we'll be rendering to.
const info: ViewInfo = switch (apprt.runtime) {
apprt.glfw => info: {
// Everything in glfw is window-oriented so we grab the backing
// window, then derive everything from that.
const nswindow = objc.Object.fromId(glfwNative.getCocoaWindow(
options.rt_surface.window,
).?);
const contentView = objc.Object.fromId(
nswindow.getProperty(?*anyopaque, "contentView").?,
);
const scaleFactor = nswindow.getProperty(
macos.graphics.c.CGFloat,
"backingScaleFactor",
);
break :info .{
.view = contentView,
.scaleFactor = scaleFactor,
};
},
apprt.embedded => .{
.scaleFactor = @floatCast(options.rt_surface.content_scale.x),
.view = switch (options.rt_surface.platform) {
.macos => |v| v.nsview,
.ios => |v| v.uiview,
},
},
else => @compileError("unsupported apprt for metal"),
};
// Initialize our metal stuff
const device = objc.Object.fromId(mtl.MTLCreateSystemDefaultDevice());
const queue = device.msgSend(objc.Object, objc.sel("newCommandQueue"), .{});
const swapchain = swapchain: {
// Get our CAMetalLayer
const layer = switch (builtin.os.tag) {
.macos => layer: {
const CAMetalLayer = objc.getClass("CAMetalLayer").?;
const swapchain = CAMetalLayer.msgSend(objc.Object, objc.sel("layer"), .{});
swapchain.setProperty("device", device.value);
swapchain.setProperty("opaque", options.config.background_opacity >= 1);
break :layer CAMetalLayer.msgSend(objc.Object, objc.sel("layer"), .{});
},
// disable v-sync
swapchain.setProperty("displaySyncEnabled", false);
// iOS is always layer-backed so we don't need to do anything here.
.ios => info.view.getProperty(objc.Object, "layer"),
break :swapchain swapchain;
else => @compileError("unsupported target for Metal"),
};
layer.setProperty("device", device.value);
layer.setProperty("opaque", options.config.background_opacity >= 1);
layer.setProperty("displaySyncEnabled", false); // disable v-sync
// Make our view layer-backed with our Metal layer. On iOS views are
// always layer backed so we don't need to do this. But on iOS the
// caller MUST be sure to set the layerClass to CAMetalLayer.
if (comptime builtin.os.tag == .macos) {
info.view.setProperty("layer", layer.value);
info.view.setProperty("wantsLayer", true);
}
// Ensure that our metal layer has a content scale set to match the
// scale factor of the window. This avoids magnification issues leading
// to blurry rendering.
layer.setProperty("contentsScale", info.scaleFactor);
// Get our cell metrics based on a regular font ascii 'M'. Why 'M'?
// Doesn't matter, any normal ASCII will do we're just trying to make
@ -401,7 +458,7 @@ pub fn init(alloc: Allocator, options: renderer.Options) !Metal {
// Metal stuff
.device = device,
.queue = queue,
.swapchain = swapchain,
.layer = layer,
.texture_greyscale = texture_greyscale,
.texture_color = texture_color,
.custom_shader_state = custom_shader_state,
@ -445,45 +502,12 @@ pub fn deinit(self: *Metal) void {
/// This is called just prior to spinning up the renderer thread for
/// final main thread setup requirements.
pub fn finalizeSurfaceInit(self: *const Metal, surface: *apprt.Surface) !void {
const Info = struct {
view: objc.Object,
scaleFactor: f64,
};
pub fn finalizeSurfaceInit(self: *Metal, surface: *apprt.Surface) !void {
_ = self;
_ = surface;
// Get the view and scale factor for our surface.
const info: Info = switch (apprt.runtime) {
apprt.glfw => info: {
// Everything in glfw is window-oriented so we grab the backing
// window, then derive everything from that.
const nswindow = objc.Object.fromId(glfwNative.getCocoaWindow(surface.window).?);
const contentView = objc.Object.fromId(nswindow.getProperty(?*anyopaque, "contentView").?);
const scaleFactor = nswindow.getProperty(macos.graphics.c.CGFloat, "backingScaleFactor");
break :info .{
.view = contentView,
.scaleFactor = scaleFactor,
};
},
apprt.embedded => .{
.view = switch (surface.platform) {
.macos => |v| v.nsview,
},
.scaleFactor = @floatCast(surface.content_scale.x),
},
else => @compileError("unsupported apprt for metal"),
};
// Make our view layer-backed with our Metal layer
info.view.setProperty("layer", self.swapchain.value);
info.view.setProperty("wantsLayer", true);
// Ensure that our metal layer has a content scale set to match the
// scale factor of the window. This avoids magnification issues leading
// to blurry rendering.
const layer = info.view.getProperty(objc.Object, "layer");
layer.setProperty("contentsScale", info.scaleFactor);
// Metal doesn't have to do anything here. OpenGL has to do things
// like release the context but Metal doesn't have anything like that.
}
/// Callback called by renderer.Thread when it begins.
@ -738,7 +762,7 @@ pub fn drawFrame(self: *Metal, surface: *apprt.Surface) !void {
defer pool.deinit();
// Get our drawable (CAMetalDrawable)
const drawable = self.swapchain.msgSend(objc.Object, objc.sel("nextDrawable"), .{});
const drawable = self.layer.msgSend(objc.Object, objc.sel("nextDrawable"), .{});
// Get our screen texture. If we don't have a dedicated screen texture
// then we just use the drawable texture.
@ -1415,7 +1439,7 @@ pub fn setScreenSize(
const padded_dim = dim.subPadding(padding);
// Set the size of the drawable surface to the bounds
self.swapchain.setProperty("drawableSize", macos.graphics.Size{
self.layer.setProperty("drawableSize", macos.graphics.Size{
.width = @floatFromInt(dim.width),
.height = @floatFromInt(dim.height),
});

3
src/renderer/Options.zig
View File

@ -18,6 +18,9 @@ padding: Padding,
/// once the thread has started and should not be used outside of the thread.
surface_mailbox: apprt.surface.Mailbox,
/// The apprt surface.
rt_surface: *apprt.Surface,
pub const Padding = struct {
// Explicit padding options, in pixels. The surface thread is
// expected to convert points to pixels for a given DPI.