feat(panic): panic handler to recover termios when crashing

examples/demo.zig

@@ -188,6 +188,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/elements/alignment.zig

@@ -90,6 +90,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/elements/button.zig

@@ -137,6 +137,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/elements/input.zig

@@ -217,6 +217,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/elements/scrollable.zig

@@ -189,6 +189,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/errors.zig

@@ -150,6 +150,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/layouts/grid.zig

@@ -106,6 +106,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/layouts/horizontal.zig

@@ -98,6 +98,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/layouts/mixed.zig

@@ -114,6 +114,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/layouts/vertical.zig

@@ -97,6 +97,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/styles/palette.zig

@@ -93,6 +93,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/styles/text.zig

@@ -148,6 +148,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

src/app.zig

@@ -393,6 +393,25 @@ pub fn App(comptime E: type) type {
             }
         }
 
+        pub fn panic_handler(msg: []const u8, _: ?*std.builtin.StackTrace, ret_addr: ?usize) noreturn {
+            terminal.disableMouseSupport() catch {};
+            terminal.exitAltScreen() catch {};
+            terminal.showCursor() catch {};
+            var termios: posix.termios = .{
+                .iflag = .{},
+                .lflag = .{},
+                .cflag = .{},
+                .oflag = .{},
+                .cc = undefined,
+                .line = 0,
+                .ispeed = undefined,
+                .ospeed = undefined,
+            };
+            terminal.disableRawMode(&termios) catch {};
+            terminal.restoreScreen() catch {};
+            std.debug.defaultPanic(msg, ret_addr);
+        }
+
         const element = @import("element.zig");
         pub const Event = mergeTaggedUnions(event.SystemEvent, E);
         pub const Container = @import("container.zig").Container(Event);