macos: add FullSizeContentView

Author: zenith391

src/backends/macos/AppKit.zig

@@ -9,6 +9,7 @@ pub const NSWindowStyleMask = struct {
     pub const Resizable: NSUInteger = 1 << 3;
     pub const Utility: NSUInteger = 1 << 4;
     pub const FullScreen: NSUInteger = 1 << 14;
+    pub const FullSizeContentView: NSUInteger = 1 << 15;
 };
 
 pub const NSBackingStore = enum(NSUInteger) {

src/backends/macos/backend.zig

@@ -109,7 +109,7 @@ pub const Window = struct {
     pub fn create() BackendError!Window {
         const NSWindow = objc.getClass("NSWindow") catch return BackendError.InitializationError;
         const rect = objc.NSRect.make(100, 100, 200, 200);
-        const style = AppKit.NSWindowStyleMask.Titled | AppKit.NSWindowStyleMask.Closable | AppKit.NSWindowStyleMask.Miniaturizable | AppKit.NSWindowStyleMask.Resizable;
+        const style = AppKit.NSWindowStyleMask.Titled | AppKit.NSWindowStyleMask.Closable | AppKit.NSWindowStyleMask.Miniaturizable | AppKit.NSWindowStyleMask.Resizable | AppKit.NSWindowStyleMask.FullSizeContentView;
 
         std.log.info("make new rect", .{});
         const newRect = objc.msgSendByName(objc.NSRect, NSWindow, "frameRectForContentRect:styleMask:", .{ rect, style }) catch unreachable;
@@ -160,6 +160,7 @@ pub const Window = struct {
 
     pub fn show(self: *Window) void {
         std.log.info("show window", .{});
+        objc.msgSendByName(void, self.peer, "setIsVisible:", .{ @as(objc.id, self.peer), @as(u8, @intFromBool(true))}) catch unreachable;
         objc.msgSendByName(void, self.peer, "makeKeyAndOrderFront:", .{@as(objc.id, self.peer)}) catch unreachable;
         std.log.info("showed window", .{});
         _ = activeWindows.fetchAdd(1, .Release);