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internal/ui: use RegisterClass API (#2442)

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Updates #1162

This change uses purego's new RegisterClass API to clean up the
EbitengineWindowDelegate ObjC class. Doing so makes the code
easier to read and more efficient since it directly get the origResizable
and origDelegate fields.
This commit is contained in:
TotallyGamerJet 2022-11-06 21:31:39 -08:00 committed by GitHub
parent 17be6eecd1
commit 8c5f525ac2
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1 changed files with 121 additions and 83 deletions
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204
internal/ui/ui_glfw_darwin.go
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@ -31,90 +31,128 @@ import (
var class_EbitengineWindowDelegate objc.Class
func init() {
class_EbitengineWindowDelegate = objc.AllocateClassPair(objc.GetClass("NSObject"), "EbitengineWindowDelegate", 0)
protocol := objc.GetProtocol("NSWindowDelegate")
class_EbitengineWindowDelegate.AddProtocol(protocol)
// TODO: remove these Ivars and place them in Go since there is only ever one instance of this class
class_EbitengineWindowDelegate.AddIvar("origDelegate", objc.ID(0), "@")
class_EbitengineWindowDelegate.AddIvar("origResizable", false, "B")
origDelegateOffset := class_EbitengineWindowDelegate.InstanceVariable("origDelegate").Offset()
origResizableOffset := class_EbitengineWindowDelegate.InstanceVariable("origResizable").Offset()
getOrigDelegate := func(self objc.ID) objc.ID {
selfPtr := *(**uintptr)(unsafe.Pointer(&self))
return *(*objc.ID)(unsafe.Pointer(uintptr(unsafe.Pointer(selfPtr)) + origDelegateOffset))
}
getResizable := func(self objc.ID) bool {
selfPtr := *(**uintptr)(unsafe.Pointer(&self))
return *(*bool)(unsafe.Pointer(uintptr(unsafe.Pointer(selfPtr)) + origResizableOffset))
}
setResizable := func(self objc.ID, resizable bool) {
selfPtr := *(**uintptr)(unsafe.Pointer(&self))
*(*bool)(unsafe.Pointer(uintptr(unsafe.Pointer(selfPtr)) + origResizableOffset)) = resizable
}
pushResizableState := func(self, w objc.ID) {
window := cocoa.NSWindow{ID: w}
setResizable(self, window.StyleMask()&cocoa.NSWindowStyleMaskResizable != 0)
if !getResizable(self) {
window.SetStyleMask(window.StyleMask() | cocoa.NSWindowStyleMaskResizable)
}
}
popResizableState := func(self, w objc.ID) {
window := cocoa.NSWindow{ID: w}
if !getResizable(self) {
window.SetStyleMask(window.StyleMask() & ^uint(cocoa.NSWindowStyleMaskResizable))
}
setResizable(self, false)
}
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("initWithOrigDelegate:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, origDelegate objc.ID) objc.ID {
self = self.SendSuper(objc.RegisterName("init"))
if self != 0 {
selfPtr := *(**uintptr)(unsafe.Pointer(&self))
*(*objc.ID)(unsafe.Pointer(uintptr(unsafe.Pointer(selfPtr)) + origDelegateOffset)) = origDelegate
}
return self
}), "@@:B")
// The method set of origDelegate_ must sync with GLFWWindowDelegate's implementation.
// See cocoa_window.m in GLFW.
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowShouldClose:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) int {
return int(getOrigDelegate(self).Send(objc.RegisterName("windowShouldClose:"), notification))
}), "B@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowDidResize:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
getOrigDelegate(self).Send(cmd, notification)
}), "v@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowDidMove:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
getOrigDelegate(self).Send(cmd, notification)
}), "v@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowDidMiniaturize:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
getOrigDelegate(self).Send(cmd, notification)
}), "v@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowDidDeminiaturize:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
getOrigDelegate(self).Send(cmd, notification)
}), "v@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowDidBecomeKey:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
getOrigDelegate(self).Send(cmd, notification)
}), "v@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowDidResignKey:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
getOrigDelegate(self).Send(cmd, notification)
}), "v@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowDidChangeOcclusionState:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
getOrigDelegate(self).Send(cmd, notification)
}), "v@:@")
type windowDelgate struct {
isa objc.Class `objc:"EbitengineWindowDelegate : NSObject <NSWindowDelegate>"`
origDelegate objc.ID
origResizable bool
}
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowWillEnterFullScreen:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
pushResizableState(self, cocoa.NSNotification{ID: notification}.Object())
}), "v@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowDidEnterFullScreen:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
popResizableState(self, cocoa.NSNotification{ID: notification}.Object())
}), "v@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowWillExitFullScreen:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
pushResizableState(self, cocoa.NSNotification{ID: notification}.Object())
}), "v@:@")
class_EbitengineWindowDelegate.AddMethod(objc.RegisterName("windowDidExitFullScreen:"), objc.NewIMP(func(self objc.ID, cmd objc.SEL, notification objc.ID) {
popResizableState(self, cocoa.NSNotification{ID: notification}.Object())
// Do not call setFrame here (#2295). setFrame here causes unexpected results.
}), "v@:@")
class_EbitengineWindowDelegate.Register()
func (w *windowDelgate) 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 *windowDelgate) popResizableState(win objc.ID) {
if !w.origResizable {
window := cocoa.NSWindow{ID: win}
window.SetStyleMask(window.StyleMask() & ^uint(cocoa.NSWindowStyleMaskResizable))
}
w.origResizable = false
}
func (w *windowDelgate) InitWithOrigDelegate(cmd objc.SEL, origDelegate objc.ID) objc.ID {
self := objc.ID(unsafe.Pointer(w)).SendSuper(objc.RegisterName("init"))
if self != 0 {
w = *(**windowDelgate)(unsafe.Pointer(&self))
w.origDelegate = origDelegate
}
return self
}
// The method set of origDelegate_ must sync with GLFWWindowDelegate's implementation.
// See cocoa_window.m in GLFW.
func (w *windowDelgate) WindowShouldClose(cmd objc.SEL, notification objc.ID) bool {
return w.origDelegate.Send(cmd, notification) != 0
}
func (w *windowDelgate) WindowDidResize(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelgate) WindowDidMove(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelgate) WindowDidMiniaturize(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelgate) WindowDidDeminiaturize(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelgate) WindowDidBecomeKey(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelgate) WindowDidResignKey(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelgate) WindowDidChangeOcclusionState(cmd objc.SEL, notification objc.ID) {
w.origDelegate.Send(cmd, notification)
}
func (w *windowDelgate) WindowWillEnterFullScreen(cmd objc.SEL, notification objc.ID) {
w.pushResizableState(cocoa.NSNotification{ID: notification}.Object())
}
func (w *windowDelgate) WindowDidEnterFullScreen(cmd objc.SEL, notification objc.ID) {
w.popResizableState(cocoa.NSNotification{ID: notification}.Object())
}
func (w *windowDelgate) WindowWillExitFullScreen(cmd objc.SEL, notification objc.ID) {
w.pushResizableState(cocoa.NSNotification{ID: notification}.Object())
}
func (w *windowDelgate) 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 *windowDelgate) Selector(cmd string) objc.SEL {
switch cmd {
case "InitWithOrigDelegate":
return objc.RegisterName("initWithOrigDelegate:")
case "WindowShouldClose":
return objc.RegisterName("windowShouldClose:")
case "WindowDidResize":
return objc.RegisterName("windowDidResize:")
case "WindowDidMove":
return objc.RegisterName("windowDidMove:")
case "WindowDidMiniaturize":
return objc.RegisterName("windowDidMiniaturize:")
case "WindowDidDeminiaturize":
return objc.RegisterName("windowDidDeminiaturize:")
case "WindowDidBecomeKey":
return objc.RegisterName("windowDidBecomeKey:")
case "WindowDidResignKey":
return objc.RegisterName("windowDidResignKey:")
case "WindowDidChangeOcclusionState":
return objc.RegisterName("windowDidChangeOcclusionState:")
case "WindowWillEnterFullScreen":
return objc.RegisterName("windowWillEnterFullScreen:")
case "WindowDidEnterFullScreen":
return objc.RegisterName("windowDidEnterFullScreen:")
case "WindowWillExitFullScreen":
return objc.RegisterName("windowWillExitFullScreen:")
case "WindowDidExitFullScreen":
return objc.RegisterName("windowDidExitFullScreen:")
default:
return 0
}
}
func init() {
var err error
class_EbitengineWindowDelegate, err = objc.RegisterClass(&windowDelgate{})
if err != nil {
panic(err)
}
}
type graphicsDriverCreatorImpl struct {