ebiten/internal/ui/ui_glfw_darwin.go

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// Copyright 2016 Hajime Hoshi
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !ios && !nintendosdk
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package ui
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import (
"fmt"
"unsafe"
"github.com/ebitengine/purego/objc"
"github.com/hajimehoshi/ebiten/v2/internal/cocoa"
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"github.com/hajimehoshi/ebiten/v2/internal/glfw"
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/metal"
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/opengl"
)
var (
class_EbitengineWindowDelegate objc.Class
)
type windowDelegate struct {
isa objc.Class `objc:"EbitengineWindowDelegate : NSObject <NSWindowDelegate>"`
origDelegate objc.ID
origResizable bool
}
func (w *windowDelegate) pushResizableState(win objc.ID) {
window := cocoa.NSWindow{ID: win}
w.origResizable = window.StyleMask()&cocoa.NSWindowStyleMaskResizable != 0
if !w.origResizable {
window.SetStyleMask(window.StyleMask() | cocoa.NSWindowStyleMaskResizable)
}
}
func (w *windowDelegate) popResizableState(win objc.ID) {
if !w.origResizable {
window := cocoa.NSWindow{ID: win}
window.SetStyleMask(window.StyleMask() & ^uint(cocoa.NSWindowStyleMaskResizable))
}
w.origResizable = false
}
func (w *windowDelegate) InitWithOrigDelegate(cmd objc.SEL, origDelegate objc.ID) objc.ID {
self := objc.ID(unsafe.Pointer(w)).SendSuper(sel_init)
if self != 0 {
w = *(**windowDelegate)(unsafe.Pointer(&self))
w.origDelegate = origDelegate
}
return self
}
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// The method set of origDelegate must sync with GLFWWindowDelegate's implementation.
// See cocoa_window.m in GLFW.
func (w *windowDelegate) WindowShouldClose(cmd objc.SEL, notification objc.ID) bool {
return w.origDelegate.Send(cmd, notification) != 0
}
func (w *windowDelegate) WindowDidResize(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelegate) WindowDidMove(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelegate) WindowDidMiniaturize(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelegate) WindowDidDeminiaturize(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelegate) WindowDidBecomeKey(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelegate) WindowDidResignKey(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelegate) WindowDidChangeOcclusionState(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelegate) WindowWillEnterFullScreen(cmd objc.SEL, notification objc.ID) {
w.pushResizableState(cocoa.NSNotification{ID: notification}.Object())
}
func (w *windowDelegate) WindowDidEnterFullScreen(cmd objc.SEL, notification objc.ID) {
w.popResizableState(cocoa.NSNotification{ID: notification}.Object())
}
func (w *windowDelegate) WindowWillExitFullScreen(cmd objc.SEL, notification objc.ID) {
w.pushResizableState(cocoa.NSNotification{ID: notification}.Object())
}
func (w *windowDelegate) WindowDidExitFullScreen(cmd objc.SEL, notification objc.ID) {
w.popResizableState(cocoa.NSNotification{ID: notification}.Object())
// Do not call setFrame here (#2295). setFrame here causes unexpected results.
}
func (w *windowDelegate) Selector(cmd string) objc.SEL {
switch cmd {
case "InitWithOrigDelegate":
return sel_initWithOrigDelegate
case "WindowShouldClose":
return sel_windowShouldClose
case "WindowDidResize":
return sel_windowDidResize
case "WindowDidMove":
return sel_windowDidMove
case "WindowDidMiniaturize":
return sel_windowDidMiniaturize
case "WindowDidDeminiaturize":
return sel_windowDidDeminiaturize
case "WindowDidBecomeKey":
return sel_windowDidBecomeKey
case "WindowDidResignKey":
return sel_windowDidResignKey
case "WindowDidChangeOcclusionState":
return sel_windowDidChangeOcclusionState
case "WindowWillEnterFullScreen":
return sel_windowWillEnterFullScreen
case "WindowDidEnterFullScreen":
return sel_windowDidEnterFullScreen
case "WindowWillExitFullScreen":
return sel_windowWillExitFullScreen
case "WindowDidExitFullScreen":
return sel_windowDidExitFullScreen
default:
return 0
}
}
func init() {
var err error
class_EbitengineWindowDelegate, err = objc.RegisterClass(&windowDelegate{})
if err != nil {
panic(err)
}
}
type graphicsDriverCreatorImpl struct {
transparent bool
}
func (g *graphicsDriverCreatorImpl) newAuto() (graphicsdriver.Graphics, GraphicsLibrary, error) {
m, err1 := g.newMetal()
if err1 == nil {
return m, GraphicsLibraryMetal, nil
}
o, err2 := g.newOpenGL()
if err2 == nil {
return o, GraphicsLibraryOpenGL, nil
}
return nil, GraphicsLibraryUnknown, fmt.Errorf("ui: failed to choose graphics drivers: Metal: %v, OpenGL: %v", err1, err2)
}
func (*graphicsDriverCreatorImpl) newOpenGL() (graphicsdriver.Graphics, error) {
return opengl.NewGraphics()
}
func (*graphicsDriverCreatorImpl) newDirectX() (graphicsdriver.Graphics, error) {
return nil, nil
}
func (*graphicsDriverCreatorImpl) newMetal() (graphicsdriver.Graphics, error) {
return metal.NewGraphics()
}
// clearVideoModeScaleCache must be called from the main thread.
func clearVideoModeScaleCache() {}
// dipFromGLFWMonitorPixel must be called from the main thread.
func (u *userInterfaceImpl) dipFromGLFWMonitorPixel(x float64, monitor *glfw.Monitor) float64 {
return x
}
// dipFromGLFWPixel must be called from the main thread.
func (u *userInterfaceImpl) dipFromGLFWPixel(x float64, monitor *glfw.Monitor) float64 {
// NOTE: On macOS, GLFW exposes the device independent coordinate system.
// Thus, the conversion functions are unnecessary,
// however we still need the deviceScaleFactor internally
// so we can create and maintain a HiDPI frame buffer.
return x
}
// dipToGLFWPixel must be called from the main thread.
func (u *userInterfaceImpl) dipToGLFWPixel(x float64, monitor *glfw.Monitor) float64 {
return x
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}
func (u *userInterfaceImpl) adjustWindowPosition(x, y int, monitor *glfw.Monitor) (int, int) {
return x, y
}
var (
class_NSCursor = objc.GetClass("NSCursor")
class_NSEvent = objc.GetClass("NSEvent")
)
var (
sel_alloc = objc.RegisterName("alloc")
sel_class = objc.RegisterName("class")
sel_collectionBehavior = objc.RegisterName("collectionBehavior")
sel_delegate = objc.RegisterName("delegate")
sel_init = objc.RegisterName("init")
sel_initWithOrigDelegate = objc.RegisterName("initWithOrigDelegate:")
sel_mouseLocation = objc.RegisterName("mouseLocation")
sel_performSelector = objc.RegisterName("performSelector:")
sel_set = objc.RegisterName("set")
sel_setCollectionBehavior = objc.RegisterName("setCollectionBehavior:")
sel_setDelegate = objc.RegisterName("setDelegate:")
sel_toggleFullScreen = objc.RegisterName("toggleFullScreen:")
sel_windowDidBecomeKey = objc.RegisterName("windowDidBecomeKey:")
sel_windowDidDeminiaturize = objc.RegisterName("windowDidDeminiaturize:")
sel_windowDidEnterFullScreen = objc.RegisterName("windowDidEnterFullScreen:")
sel_windowDidExitFullScreen = objc.RegisterName("windowDidExitFullScreen:")
sel_windowDidMiniaturize = objc.RegisterName("windowDidMiniaturize:")
sel_windowDidMove = objc.RegisterName("windowDidMove:")
sel_windowDidResignKey = objc.RegisterName("windowDidResignKey:")
sel_windowDidResize = objc.RegisterName("windowDidResize:")
sel_windowDidChangeOcclusionState = objc.RegisterName("windowDidChangeOcclusionState:")
sel_windowShouldClose = objc.RegisterName("windowShouldClose:")
sel_windowWillEnterFullScreen = objc.RegisterName("windowWillEnterFullScreen:")
sel_windowWillExitFullScreen = objc.RegisterName("windowWillExitFullScreen:")
)
func currentMouseLocation() (x, y int) {
sig := cocoa.NSMethodSignature_signatureWithObjCTypes("{NSPoint=dd}@:")
inv := cocoa.NSInvocation_invocationWithMethodSignature(sig)
inv.SetTarget(objc.ID(class_NSEvent))
inv.SetSelector(sel_mouseLocation)
inv.Invoke()
var point cocoa.NSPoint
inv.GetReturnValue(unsafe.Pointer(&point))
return int(point.X), int(point.Y)
}
func initialMonitorByOS() (*glfw.Monitor, error) {
x, y := currentMouseLocation()
// Find the monitor including the cursor.
for _, m := range ensureMonitors() {
w, h := m.vm.Width, m.vm.Height
if x >= m.x && x < m.x+w && y >= m.y && y < m.y+h {
return m.m, nil
}
}
return nil, nil
}
func monitorFromWindowByOS(w *glfw.Window) *glfw.Monitor {
window := cocoa.NSWindow{ID: objc.ID(w.GetCocoaWindow())}
pool := cocoa.NSAutoreleasePool_new()
screen := cocoa.NSScreen_mainScreen()
if window.ID != 0 && window.IsVisible() {
// When the window is visible, the window is already initialized.
// [NSScreen mainScreen] sometimes tells a lie when the window is put across monitors (#703).
screen = window.Screen()
}
screenDictionary := screen.DeviceDescription()
screenID := cocoa.NSNumber{ID: screenDictionary.ObjectForKey(cocoa.NSString_alloc().InitWithUTF8String("NSScreenNumber").ID)}
aID := uintptr(screenID.UnsignedIntValue()) // CGDirectDisplayID
pool.Release()
for _, m := range ensureMonitors() {
if m.m.GetCocoaMonitor() == aID {
return m.m
}
}
return nil
}
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func (u *userInterfaceImpl) nativeWindow() uintptr {
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return u.window.GetCocoaWindow()
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}
func (u *userInterfaceImpl) isNativeFullscreen() bool {
return cocoa.NSWindow{ID: objc.ID(u.window.GetCocoaWindow())}.StyleMask()&cocoa.NSWindowStyleMaskFullScreen != 0
}
func (u *userInterfaceImpl) isNativeFullscreenAvailable() bool {
// TODO: If the window is transparent, we should use GLFW's windowed fullscreen (#1822, #1857).
// However, if the user clicks the green button, should this window be in native fullscreen mode?
return true
}
func (u *userInterfaceImpl) setNativeFullscreen(fullscreen bool) {
// Toggling fullscreen might ignore events like keyUp. Ensure that events are fired.
glfw.WaitEventsTimeout(0.1)
window := cocoa.NSWindow{ID: objc.ID(u.window.GetCocoaWindow())}
if window.StyleMask()&cocoa.NSWindowStyleMaskFullScreen != 0 == fullscreen {
return
}
// Even though EbitengineWindowDelegate is used, this hack is still required.
// toggleFullscreen doesn't work when the window is not resizable.
origCollectionBehavior := window.Send(sel_collectionBehavior)
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origFullScreen := origCollectionBehavior&cocoa.NSWindowCollectionBehaviorFullScreenPrimary != 0
if !origFullScreen {
collectionBehavior := origCollectionBehavior
collectionBehavior |= cocoa.NSWindowCollectionBehaviorFullScreenPrimary
collectionBehavior &^= cocoa.NSWindowCollectionBehaviorFullScreenNone
window.Send(sel_setCollectionBehavior, cocoa.NSUInteger(collectionBehavior))
}
window.Send(sel_toggleFullScreen, 0)
if !origFullScreen {
window.Send(sel_setCollectionBehavior, cocoa.NSUInteger(cocoa.NSUInteger(origCollectionBehavior)))
}
}
func (u *userInterfaceImpl) adjustViewSizeAfterFullscreen() {
if u.graphicsDriver.IsGL() {
return
}
window := cocoa.NSWindow{ID: objc.ID(u.window.GetCocoaWindow())}
if window.StyleMask()&cocoa.NSWindowStyleMaskFullScreen == 0 {
return
}
// Reduce the view height (#1745).
// https://stackoverflow.com/questions/27758027/sprite-kit-serious-fps-issue-in-full-screen-mode-on-os-x
windowSize := window.Frame().Size
view := window.ContentView()
viewSize := view.Frame().Size
if windowSize.Width != viewSize.Width || windowSize.Height != viewSize.Height {
return
}
viewSize.Width--
view.SetFrameSize(viewSize)
// NSColor.blackColor (0, 0, 0, 1) didn't work.
// Use the transparent color instead.
window.SetBackgroundColor(cocoa.NSColor_colorWithSRGBRedGreenBlueAlpha(0, 0, 0, 0))
}
func (u *userInterfaceImpl) setWindowResizingModeForOS(mode WindowResizingMode) {
allowFullscreen := mode == WindowResizingModeOnlyFullscreenEnabled ||
mode == WindowResizingModeEnabled
var collectionBehavior uint
if allowFullscreen {
collectionBehavior |= cocoa.NSWindowCollectionBehaviorManaged
collectionBehavior |= cocoa.NSWindowCollectionBehaviorFullScreenPrimary
} else {
collectionBehavior |= cocoa.NSWindowCollectionBehaviorFullScreenNone
}
objc.ID(u.window.GetCocoaWindow()).Send(sel_setCollectionBehavior, collectionBehavior)
}
func initializeWindowAfterCreation(w *glfw.Window) {
// TODO: Register NSWindowWillEnterFullScreenNotification and so on.
// Enable resizing temporary before making the window fullscreen.
nswindow := objc.ID(w.GetCocoaWindow())
delegate := objc.ID(class_EbitengineWindowDelegate).Send(sel_alloc).Send(sel_initWithOrigDelegate, nswindow.Send(sel_delegate))
nswindow.Send(sel_setDelegate, delegate)
}
func (u *userInterfaceImpl) skipTaskbar() error {
return nil
}