feat: add Bytearray wrapper

This fixes some byte arrays being deserialized as []u32

src/deserialization_blocks/bytearray.zig

@@ -0,0 +1,52 @@
+const std = @import("std");
+const getty = @import("getty");
+const types = @import("../types.zig");
+
+const Vis = struct {
+    pub usingnamespace getty.de.Visitor(
+        @This(),
+        types.Bytearray,
+        undefined,
+        undefined,
+        undefined,
+        undefined,
+        undefined,
+        undefined,
+        visitSeq,
+        undefined,
+        undefined,
+        undefined,
+        undefined,
+    );
+
+    pub fn visitSeq(
+        _: @This(),
+        alloc: ?std.mem.Allocator,
+        comptime Deserializer: type,
+        input: anytype,
+    ) Deserializer.Error!types.Bytearray {
+        var list = std.ArrayList(u8).init(alloc.?);
+        while (try input.nextElement(alloc, u8)) |element| {
+            try list.append(element);
+        }
+
+        return types.Bytearray{ .a = list.toOwnedSlice() };
+    }
+};
+
+pub fn is(comptime T: type) bool {
+    return T == types.Bytearray;
+}
+
+pub fn Visitor(comptime _: type) type {
+    return Vis;
+}
+
+pub fn deserialize(
+    alloc: ?std.mem.Allocator,
+    comptime _: type,
+    deserializer: anytype,
+    visitor: anytype,
+) !@TypeOf(visitor).Value {
+    return try deserializer.deserializeSeq(alloc, visitor);
+}

src/main.zig

@@ -50,7 +50,7 @@ pub fn createPlugin(comptime Plugin: type) void {
 
         export fn update() void {
             if (allocator == null) {
-                 @panic("Got event while allocator is null! Did you forget to set it?");
+                @panic("Got event while allocator is null! Did you forget to set it?");
             }
 
             var ev = api.recvObj(types.Event) catch |err| {

src/types.zig

@@ -4,6 +4,7 @@ const json = @import("json");
 
 /// getty deserialization blocks required to properly deserialize messages
 pub const dbs = .{
+    @import("deserialization_blocks/bytearray.zig"),
     @import("deserialization_blocks/char.zig"),
     @import("deserialization_blocks/char_or_arrow.zig"),
     @import("deserialization_blocks/line_and_column.zig"),
@@ -54,6 +55,37 @@ test "deserialize Char" {
     defer deser.deinit();
 }
 
+/// A struct that wraps a bytearray.
+/// This struct has some custom deserialization behaviour,
+/// so that bytearrays aren't deserialized as strings.
+pub const Bytearray = struct {
+    a: []u8,
+};
+
+test "deserialize Bytearray" {
+    const valid_json_src =
+        \\[
+        \\  1,
+        \\  2,
+        \\  3,
+        \\  4
+        \\]
+    ;
+
+    var valid_deser = try OwnedDeserData(Bytearray)
+        .deserialize(std.testing.allocator, valid_json_src);
+    defer valid_deser.deinit();
+
+    const invalid_json_src =
+        \\"I'm a string!"
+    ;
+
+    try std.testing.expectError(
+        error.InvalidType,
+        OwnedDeserData(Bytearray).deserialize(std.testing.allocator, invalid_json_src),
+    );
+}
+
 pub const EventType = enum {
     ModeUpdate,
     TabUpdate,
@@ -515,11 +547,9 @@ pub const SearchOption = enum {
     Wrap,
 };
 
-// TODO: Write, TabNameInput, PaneNameInput and SearchInput are actually `[]u8`,
-// but getty thinks they have to be a string, and not byte arrays.
 pub const Action = union(enum) {
     Quit,
-    Write: []u32,
+    Write: Bytearray,
     WriteChars: []u8,
     SwitchToMode: InputMode,
     Resize: ResizeDirection,
@@ -547,7 +577,7 @@ pub const Action = union(enum) {
     TogglePaneEmbedOrFloating,
     ToggleFloatingPanes,
     CloseFocus,
-    PaneNameInput: []u32,
+    PaneNameInput: Bytearray,
     UndoRenamePane,
     NewTab: ?TabLayout,
     NoOp,
@@ -556,7 +586,7 @@ pub const Action = union(enum) {
     CloseTab,
     GoToTab: u32,
     ToggleTab,
-    TabNameInput: []u32,
+    TabNameInput: Bytearray,
     UndoRenameTab,
     Run: RunCommandAction,
     Detach,
@@ -568,7 +598,7 @@ pub const Action = union(enum) {
     Confirm,
     Deny,
     SkipConfirm: *Action,
-    SearchInput: []u32,
+    SearchInput: Bytearray,
     Search: SearchDirection,
     SearchToggleOption: SearchOption,
 };

src/zellij_api.zig

@@ -7,4 +7,3 @@ pub extern "zellij" fn host_open_file() void;
 pub extern "zellij" fn host_switch_tab_to(tab_idx: u32) void;
 pub extern "zellij" fn host_set_timeout(secs: f64) void;
 pub extern "zellij" fn host_exec_cmd() void;
-