tiny.wayland.protocol.bootstrap.display

1const protocol = @import("../root.zig");23const core = protocol.core.wl_display;45pub const Sync = struct {6    callback: protocol.value.NewId,78    pub fn encode(self: Sync, encoder: *protocol.value.Encoder) !protocol.value.Encoded {9        encoder.reset();10        errdefer encoder.reset();11        try encoder.newId(self.callback);12        return encoder.finish(&core.requests.sync);13    }14};1516pub const GetRegistry = struct {17    registry: protocol.value.NewId,1819    pub fn encode(self: GetRegistry, encoder: *protocol.value.Encoder) !protocol.value.Encoded {20        encoder.reset();21        errdefer encoder.reset();22        try encoder.newId(self.registry);23        return encoder.finish(&core.requests.get_registry);24    }25};2627pub const Fatal = struct {28    object_id: protocol.value.ObjectId,29    code: u32,30    message: []const u8,31};3233pub const DeleteId = struct {34    id: u32,35};3637pub const Event = union(enum) {38    fatal: Fatal,39    delete_id: DeleteId,40};4142pub fn decodeEvent(43    opcode: u16,44    payload: []const u8,45    descriptors: []const @import("sys").fd.Descriptor,46) !Event {47    const metadata = core.metadata.event(opcode) orelse return error.UnknownOpcode;48    var decoder = try protocol.value.Decoder.init(metadata, payload, descriptors);49    const event: Event = switch (opcode) {50        core.events.@"error".opcode => .{ .fatal = .{51            .object_id = try decoder.object(),52            .code = try decoder.unsigned(),53            .message = try decoder.string(),54        } },55        core.events.delete_id.opcode => .{ .delete_id = .{56            .id = try decoder.unsigned(),57        } },58        else => unreachable,59    };60    try decoder.finish();61    return event;62}6364test "display bootstrap requests use generated opcodes" {65    const std = @import("std");6667    var encoder = try protocol.value.Encoder.init(68        std.testing.allocator,69        protocol.value.default_encoder_capacity,70    );71    defer encoder.deinit();72    const callback = try (Sync{ .callback = try .init(2) }).encode(&encoder);73    try std.testing.expectEqual(@as(u16, 0), callback.opcode());74    try std.testing.expectEqualSlices(u8, &.{ 2, 0, 0, 0 }, callback.payload);75    const registry = try (GetRegistry{ .registry = try .init(3) }).encode(&encoder);76    try std.testing.expectEqual(@as(u16, 1), registry.opcode());77    try std.testing.expectEqualSlices(u8, &.{ 3, 0, 0, 0 }, registry.payload);78}7980test "display events reject malformed payloads" {81    const std = @import("std");8283    const delete_payload = [_]u8{ 9, 0, 0, 0 };84    const event = try decodeEvent(core.events.delete_id.opcode, &delete_payload, &.{});85    try std.testing.expectEqual(@as(u32, 9), event.delete_id.id);86    try std.testing.expectError(error.UnknownOpcode, decodeEvent(9, &.{}, &.{}));87    try std.testing.expectError(88        error.PayloadTooSmall,89        decodeEvent(core.events.@"error".opcode, &delete_payload, &.{}),90    );91}

1pub const display = @import("display.zig");