aio: update to latest, windows, code reuse

Update to latest aio, which has minor changes such as the thread pool
argument and special aio.ReadTty operation.

In future the aio.ReadTty might have option to translate to vt escape
sequences, but for vaxis it will use the direct mode.

I was not really able to test the windows at all actually as wine did
not seem to play nice with any vaxis example, but it compiles and ...
runs?
This commit is contained in:
Jari Vetoniemi 2024-06-28 09:04:59 +09:00 committed by Tim Culverhouse
parent 9c2d18d5a2
commit 9b78bb8a78
5 changed files with 464 additions and 513 deletions

View file

@ -23,8 +23,8 @@
.lazy = true, .lazy = true,
}, },
.aio = .{ .aio = .{
.url = "git+https://github.com/Cloudef/zig-aio#be8e2b374bf223202090e282447fa4581029c2eb", .url = "git+https://github.com/Cloudef/zig-aio#407bb416136b61087cec2c561fa4b4103a44c5b1",
.hash = "122012a11b37a350395a32fdb514e57ff54a0f9d8d4ce09498b6c45ffb7211232920", .hash = "12202405ca6dd40f314dba6472983fcbb388118ab7446d75065b1efb982d03f515d2",
.lazy = true, .lazy = true,
}, },
}, },

View file

@ -41,7 +41,7 @@ fn audioTask(allocator: std.mem.Allocator) !void {
const sound = blk: { const sound = blk: {
var tpool: coro.ThreadPool = .{}; var tpool: coro.ThreadPool = .{};
try tpool.start(allocator, 1); try tpool.start(allocator, .{});
defer tpool.deinit(); defer tpool.deinit();
break :blk try tpool.yieldForCompletition(downloadTask, .{ allocator, "https://keroserene.net/lol/roll.s16" }); break :blk try tpool.yieldForCompletition(downloadTask, .{ allocator, "https://keroserene.net/lol/roll.s16" });
}; };

View file

@ -8,6 +8,7 @@ const Parser = @import("Parser.zig");
const Queue = @import("queue.zig").Queue; const Queue = @import("queue.zig").Queue;
const Tty = @import("main.zig").Tty; const Tty = @import("main.zig").Tty;
const Vaxis = @import("Vaxis.zig"); const Vaxis = @import("Vaxis.zig");
const log = std.log.scoped(.loop);
pub fn Loop(comptime T: type) type { pub fn Loop(comptime T: type) type {
return struct { return struct {
@ -15,8 +16,6 @@ pub fn Loop(comptime T: type) type {
const Event = T; const Event = T;
const log = std.log.scoped(.loop);
tty: *Tty, tty: *Tty,
vaxis: *Vaxis, vaxis: *Vaxis,
@ -110,38 +109,7 @@ pub fn Loop(comptime T: type) type {
.windows => { .windows => {
while (!self.should_quit) { while (!self.should_quit) {
const event = try self.tty.nextEvent(); const event = try self.tty.nextEvent();
switch (event) { try handleEventGeneric(self, self.vaxis, &cache, Event, event, null);
.winsize => |ws| {
if (@hasField(Event, "winsize")) {
self.postEvent(.{ .winsize = ws });
}
},
.key_press => |key| {
if (@hasField(Event, "key_press")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
self.postEvent(.{ .key_press = mut_key });
}
},
.key_release => |*key| {
if (@hasField(Event, "key_release")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
self.postEvent(.{ .key_release = mut_key });
}
},
.cap_da1 => {
std.Thread.Futex.wake(&self.vaxis.query_futex, 10);
},
.mouse => {}, // Unsupported currently
else => {},
}
} }
}, },
else => { else => {
@ -178,102 +146,7 @@ pub fn Loop(comptime T: type) type {
seq_start += result.n; seq_start += result.n;
const event = result.event orelse continue; const event = result.event orelse continue;
switch (event) { try handleEventGeneric(self, self.vaxis, &cache, Event, event, paste_allocator);
.key_press => |key| {
if (@hasField(Event, "key_press")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
self.postEvent(.{ .key_press = mut_key });
}
},
.key_release => |*key| {
if (@hasField(Event, "key_release")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
self.postEvent(.{ .key_release = mut_key });
}
},
.mouse => |mouse| {
if (@hasField(Event, "mouse")) {
self.postEvent(.{ .mouse = self.vaxis.translateMouse(mouse) });
}
},
.focus_in => {
if (@hasField(Event, "focus_in")) {
self.postEvent(.focus_in);
}
},
.focus_out => {
if (@hasField(Event, "focus_out")) {
self.postEvent(.focus_out);
}
},
.paste_start => {
if (@hasField(Event, "paste_start")) {
self.postEvent(.paste_start);
}
},
.paste_end => {
if (@hasField(Event, "paste_end")) {
self.postEvent(.paste_end);
}
},
.paste => |text| {
if (@hasField(Event, "paste")) {
self.postEvent(.{ .paste = text });
} else {
if (paste_allocator) |_|
paste_allocator.?.free(text);
}
},
.color_report => |report| {
if (@hasField(Event, "color_report")) {
self.postEvent(.{ .color_report = report });
}
},
.color_scheme => |scheme| {
if (@hasField(Event, "color_scheme")) {
self.postEvent(.{ .color_scheme = scheme });
}
},
.cap_kitty_keyboard => {
log.info("kitty keyboard capability detected", .{});
self.vaxis.caps.kitty_keyboard = true;
},
.cap_kitty_graphics => {
if (!self.vaxis.caps.kitty_graphics) {
log.info("kitty graphics capability detected", .{});
self.vaxis.caps.kitty_graphics = true;
}
},
.cap_rgb => {
log.info("rgb capability detected", .{});
self.vaxis.caps.rgb = true;
},
.cap_unicode => {
log.info("unicode capability detected", .{});
self.vaxis.caps.unicode = .unicode;
self.vaxis.screen.width_method = .unicode;
},
.cap_sgr_pixels => {
log.info("pixel mouse capability detected", .{});
self.vaxis.caps.sgr_pixels = true;
},
.cap_color_scheme_updates => {
log.info("color_scheme_updates capability detected", .{});
self.vaxis.caps.color_scheme_updates = true;
},
.cap_da1 => {
std.Thread.Futex.wake(&self.vaxis.query_futex, 10);
},
.winsize => unreachable, // handled elsewhere for posix
}
} }
} }
}, },
@ -281,3 +154,140 @@ pub fn Loop(comptime T: type) type {
} }
}; };
} }
pub fn handleEventGeneric(self: anytype, vx: *Vaxis, cache: *GraphemeCache, Event: type, event: anytype, paste_allocator: ?std.mem.Allocator) !void {
switch (builtin.os.tag) {
.windows => {
switch (event) {
.winsize => |ws| {
if (@hasField(Event, "winsize")) {
return self.postEvent(.{ .winsize = ws });
}
},
.key_press => |key| {
if (@hasField(Event, "key_press")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
return self.postEvent(.{ .key_press = mut_key });
}
},
.key_release => |*key| {
if (@hasField(Event, "key_release")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
return self.postEvent(.{ .key_release = mut_key });
}
},
.cap_da1 => {
std.Thread.Futex.wake(&vx.query_futex, 10);
},
.mouse => {}, // Unsupported currently
else => {},
}
},
else => {
switch (event) {
.key_press => |key| {
if (@hasField(Event, "key_press")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
return self.postEvent(.{ .key_press = mut_key });
}
},
.key_release => |*key| {
if (@hasField(Event, "key_release")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
return self.postEvent(.{ .key_release = mut_key });
}
},
.mouse => |mouse| {
if (@hasField(Event, "mouse")) {
return self.postEvent(.{ .mouse = vx.translateMouse(mouse) });
}
},
.focus_in => {
if (@hasField(Event, "focus_in")) {
return self.postEvent(.focus_in);
}
},
.focus_out => {
if (@hasField(Event, "focus_out")) {
return self.postEvent(.focus_out);
}
},
.paste_start => {
if (@hasField(Event, "paste_start")) {
return self.postEvent(.paste_start);
}
},
.paste_end => {
if (@hasField(Event, "paste_end")) {
return self.postEvent(.paste_end);
}
},
.paste => |text| {
if (@hasField(Event, "paste")) {
return self.postEvent(.{ .paste = text });
} else {
if (paste_allocator) |_|
paste_allocator.?.free(text);
}
},
.color_report => |report| {
if (@hasField(Event, "color_report")) {
return self.postEvent(.{ .color_report = report });
}
},
.color_scheme => |scheme| {
if (@hasField(Event, "color_scheme")) {
return self.postEvent(.{ .color_scheme = scheme });
}
},
.cap_kitty_keyboard => {
log.info("kitty keyboard capability detected", .{});
vx.caps.kitty_keyboard = true;
},
.cap_kitty_graphics => {
if (!vx.caps.kitty_graphics) {
log.info("kitty graphics capability detected", .{});
vx.caps.kitty_graphics = true;
}
},
.cap_rgb => {
log.info("rgb capability detected", .{});
vx.caps.rgb = true;
},
.cap_unicode => {
log.info("unicode capability detected", .{});
vx.caps.unicode = .unicode;
vx.screen.width_method = .unicode;
},
.cap_sgr_pixels => {
log.info("pixel mouse capability detected", .{});
vx.caps.sgr_pixels = true;
},
.cap_color_scheme_updates => {
log.info("color_scheme_updates capability detected", .{});
vx.caps.color_scheme_updates = true;
},
.cap_da1 => {
std.Thread.Futex.wake(&vx.query_futex, 10);
},
.winsize => unreachable, // handled elsewhere for posix
}
},
}
}

View file

@ -3,14 +3,9 @@ const std = @import("std");
const aio = @import("aio"); const aio = @import("aio");
const coro = @import("coro"); const coro = @import("coro");
const vaxis = @import("main.zig"); const vaxis = @import("main.zig");
const handleEventGeneric = @import("Loop.zig").handleEventGeneric;
const log = std.log.scoped(.vaxis_aio); const log = std.log.scoped(.vaxis_aio);
comptime {
if (builtin.target.os.tag == .windows) {
@compileError("Windows is not supported right now");
}
}
const Yield = enum { no_state, took_event }; const Yield = enum { no_state, took_event };
/// zig-aio based event loop /// zig-aio based event loop
@ -52,9 +47,11 @@ pub fn Loop(comptime T: type) type {
// keep on stack // keep on stack
var ctx: Context = .{ .loop = self, .tty = tty }; var ctx: Context = .{ .loop = self, .tty = tty };
if (@hasField(Event, "winsize")) { if (builtin.target.os.tag != .windows) {
const handler: vaxis.Tty.SignalHandler = .{ .context = &ctx, .callback = Context.cb }; if (@hasField(Event, "winsize")) {
try vaxis.Tty.notifyWinsize(handler); const handler: vaxis.Tty.SignalHandler = .{ .context = &ctx, .callback = Context.cb };
try vaxis.Tty.notifyWinsize(handler);
}
} }
while (true) { while (true) {
@ -74,7 +71,32 @@ pub fn Loop(comptime T: type) type {
}; };
} }
fn ttyReaderInner(self: *@This(), vx: *vaxis.Vaxis, tty: *vaxis.Tty, paste_allocator: ?std.mem.Allocator) !void { fn windowsReadEvent(tty: *vaxis.Tty) !vaxis.Event {
var state: vaxis.Tty.EventState = .{};
while (true) {
var bytes_read: usize = 0;
var input_record: vaxis.Tty.INPUT_RECORD = undefined;
try coro.io.single(aio.ReadTty{
.tty = .{ .handle = tty.stdin },
.buffer = std.mem.asBytes(&input_record),
.out_read = &bytes_read,
});
if (try tty.eventFromRecord(&input_record, &state)) |ev| {
return ev;
}
}
}
fn ttyReaderWindows(self: *@This(), vx: *vaxis.Vaxis, tty: *vaxis.Tty) !void {
var cache: vaxis.GraphemeCache = .{};
while (true) {
const event = try windowsReadEvent(tty);
try handleEventGeneric(self, vx, &cache, Event, event, null);
}
}
fn ttyReaderPosix(self: *@This(), vx: *vaxis.Vaxis, tty: *vaxis.Tty, paste_allocator: ?std.mem.Allocator) !void {
// initialize a grapheme cache // initialize a grapheme cache
var cache: vaxis.GraphemeCache = .{}; var cache: vaxis.GraphemeCache = .{};
@ -93,7 +115,7 @@ pub fn Loop(comptime T: type) type {
var buf: [4096]u8 = undefined; var buf: [4096]u8 = undefined;
var n: usize = undefined; var n: usize = undefined;
var read_start: usize = 0; var read_start: usize = 0;
try coro.io.single(aio.Read{ .file = file, .buffer = buf[read_start..], .out_read = &n }); try coro.io.single(aio.ReadTty{ .tty = file, .buffer = buf[read_start..], .out_read = &n });
var seq_start: usize = 0; var seq_start: usize = 0;
while (seq_start < n) { while (seq_start < n) {
const result = try parser.parse(buf[seq_start..n], paste_allocator); const result = try parser.parse(buf[seq_start..n], paste_allocator);
@ -111,108 +133,16 @@ pub fn Loop(comptime T: type) type {
seq_start += result.n; seq_start += result.n;
const event = result.event orelse continue; const event = result.event orelse continue;
switch (event) { try handleEventGeneric(self, vx, &cache, Event, event, paste_allocator);
.key_press => |key| {
if (@hasField(Event, "key_press")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
try self.postEvent(.{ .key_press = mut_key });
}
},
.key_release => |*key| {
if (@hasField(Event, "key_release")) {
// HACK: yuck. there has to be a better way
var mut_key = key;
if (key.text) |text| {
mut_key.text = cache.put(text);
}
try self.postEvent(.{ .key_release = mut_key });
}
},
.mouse => |mouse| {
if (@hasField(Event, "mouse")) {
try self.postEvent(.{ .mouse = vx.translateMouse(mouse) });
}
},
.focus_in => {
if (@hasField(Event, "focus_in")) {
try self.postEvent(.focus_in);
}
},
.focus_out => {
if (@hasField(Event, "focus_out")) {
try self.postEvent(.focus_out);
}
},
.paste_start => {
if (@hasField(Event, "paste_start")) {
try self.postEvent(.paste_start);
}
},
.paste_end => {
if (@hasField(Event, "paste_end")) {
try self.postEvent(.paste_end);
}
},
.paste => |text| {
if (@hasField(Event, "paste")) {
try self.postEvent(.{ .paste = text });
} else {
if (paste_allocator) |_|
paste_allocator.?.free(text);
}
},
.color_report => |report| {
if (@hasField(Event, "color_report")) {
try self.postEvent(.{ .color_report = report });
}
},
.color_scheme => |scheme| {
if (@hasField(Event, "color_scheme")) {
try self.postEvent(.{ .color_scheme = scheme });
}
},
.cap_kitty_keyboard => {
log.info("kitty keyboard capability detected", .{});
vx.caps.kitty_keyboard = true;
},
.cap_kitty_graphics => {
if (!vx.caps.kitty_graphics) {
log.info("kitty graphics capability detected", .{});
vx.caps.kitty_graphics = true;
}
},
.cap_rgb => {
log.info("rgb capability detected", .{});
vx.caps.rgb = true;
},
.cap_unicode => {
log.info("unicode capability detected", .{});
vx.caps.unicode = .unicode;
vx.screen.width_method = .unicode;
},
.cap_sgr_pixels => {
log.info("pixel mouse capability detected", .{});
vx.caps.sgr_pixels = true;
},
.cap_color_scheme_updates => {
log.info("color_scheme_updates capability detected", .{});
vx.caps.color_scheme_updates = true;
},
.cap_da1 => {
std.Thread.Futex.wake(&vx.query_futex, 10);
},
.winsize => unreachable, // handled elsewhere for posix
}
} }
} }
} }
fn ttyReaderTask(self: *@This(), vx: *vaxis.Vaxis, tty: *vaxis.Tty, paste_allocator: ?std.mem.Allocator) void { fn ttyReaderTask(self: *@This(), vx: *vaxis.Vaxis, tty: *vaxis.Tty, paste_allocator: ?std.mem.Allocator) void {
self.ttyReaderInner(vx, tty, paste_allocator) catch |err| { return switch (builtin.target.os.tag) {
.windows => self.ttyReaderWindows(vx, tty),
else => self.ttyReaderPosix(vx, tty, paste_allocator),
} catch |err| {
if (err != error.Canceled) log.err("ttyReader: {}", .{err}); if (err != error.Canceled) log.err("ttyReader: {}", .{err});
self.fatal = true; self.fatal = true;
}; };

View file

@ -119,288 +119,299 @@ pub fn bufferedWriter(self: *const Tty) std.io.BufferedWriter(4096, std.io.AnyWr
pub fn nextEvent(self: *Tty) !Event { pub fn nextEvent(self: *Tty) !Event {
// We use a loop so we can ignore certain events // We use a loop so we can ignore certain events
var ansi_buf: [128]u8 = undefined; var state: EventState = .{};
var ansi_idx: usize = 0;
var escape_st: bool = false;
while (true) { while (true) {
var event_count: u32 = 0; var event_count: u32 = 0;
var input_record: INPUT_RECORD = undefined; var input_record: INPUT_RECORD = undefined;
if (ReadConsoleInputW(self.stdin, &input_record, 1, &event_count) == 0) if (ReadConsoleInputW(self.stdin, &input_record, 1, &event_count) == 0)
return windows.unexpectedError(windows.kernel32.GetLastError()); return windows.unexpectedError(windows.kernel32.GetLastError());
switch (input_record.EventType) { if (try self.eventFromRecord(&input_record, &state)) |ev| {
0x0001 => { // Key event return ev;
const event = input_record.Event.KeyEvent;
const base_layout: u21 = switch (event.wVirtualKeyCode) {
0x00 => { // delivered when we get an escape sequence
ansi_buf[ansi_idx] = event.uChar.AsciiChar;
ansi_idx += 1;
if (ansi_idx <= 2) {
continue;
}
switch (ansi_buf[1]) {
'[' => { // CSI, read until 0x40 to 0xFF
switch (event.uChar.AsciiChar) {
0x40...0xFF => {
return .cap_da1;
},
else => continue,
}
},
']' => { // OSC, read until ESC \ or BEL
switch (event.uChar.AsciiChar) {
0x07 => {
return .cap_da1;
},
0x1B => {
escape_st = true;
continue;
},
'\\' => {
if (escape_st) {
return .cap_da1;
}
continue;
},
else => continue,
}
},
else => continue,
}
},
0x08 => Key.backspace,
0x09 => Key.tab,
0x0D => Key.enter,
0x13 => Key.pause,
0x14 => Key.caps_lock,
0x1B => Key.escape,
0x20 => Key.space,
0x21 => Key.page_up,
0x22 => Key.page_down,
0x23 => Key.end,
0x24 => Key.home,
0x25 => Key.left,
0x26 => Key.up,
0x27 => Key.right,
0x28 => Key.down,
0x2c => Key.print_screen,
0x2d => Key.insert,
0x2e => Key.delete,
0x30...0x39 => |k| k,
0x41...0x5a => |k| k + 0x20, // translate to lowercase
0x5b => Key.left_meta,
0x5c => Key.right_meta,
0x60 => Key.kp_0,
0x61 => Key.kp_1,
0x62 => Key.kp_2,
0x63 => Key.kp_3,
0x64 => Key.kp_4,
0x65 => Key.kp_5,
0x66 => Key.kp_6,
0x67 => Key.kp_7,
0x68 => Key.kp_8,
0x69 => Key.kp_9,
0x6a => Key.kp_multiply,
0x6b => Key.kp_add,
0x6c => Key.kp_separator,
0x6d => Key.kp_subtract,
0x6e => Key.kp_decimal,
0x6f => Key.kp_divide,
0x70 => Key.f1,
0x71 => Key.f2,
0x72 => Key.f3,
0x73 => Key.f4,
0x74 => Key.f5,
0x75 => Key.f6,
0x76 => Key.f8,
0x77 => Key.f8,
0x78 => Key.f9,
0x79 => Key.f10,
0x7a => Key.f11,
0x7b => Key.f12,
0x7c => Key.f13,
0x7d => Key.f14,
0x7e => Key.f15,
0x7f => Key.f16,
0x80 => Key.f17,
0x81 => Key.f18,
0x82 => Key.f19,
0x83 => Key.f20,
0x84 => Key.f21,
0x85 => Key.f22,
0x86 => Key.f23,
0x87 => Key.f24,
0x90 => Key.num_lock,
0x91 => Key.scroll_lock,
0xa0 => Key.left_shift,
0xa1 => Key.right_shift,
0xa2 => Key.left_control,
0xa3 => Key.right_control,
0xa4 => Key.left_alt,
0xa5 => Key.right_alt,
0xad => Key.mute_volume,
0xae => Key.lower_volume,
0xaf => Key.raise_volume,
0xb0 => Key.media_track_next,
0xb1 => Key.media_track_previous,
0xb2 => Key.media_stop,
0xb3 => Key.media_play_pause,
0xba => ';',
0xbb => '+',
0xbc => ',',
0xbd => '-',
0xbe => '.',
0xbf => '/',
0xc0 => '`',
0xdb => '[',
0xdc => '\\',
0xdd => ']',
0xde => '\'',
else => continue,
};
var codepoint: u21 = base_layout;
var text: ?[]const u8 = null;
switch (event.uChar.UnicodeChar) {
0x00...0x1F => {},
else => |cp| {
codepoint = cp;
const n = try std.unicode.utf8Encode(cp, &self.buf);
text = self.buf[0..n];
},
}
const key: Key = .{
.codepoint = codepoint,
.base_layout_codepoint = base_layout,
.mods = translateMods(event.dwControlKeyState),
.text = text,
};
switch (event.bKeyDown) {
0 => return .{ .key_release = key },
else => return .{ .key_press = key },
}
},
0x0002 => { // Mouse event
// see https://learn.microsoft.com/en-us/windows/console/mouse-event-record-str
const event = input_record.Event.MouseEvent;
// High word of dwButtonState represents mouse wheel. Positive is wheel_up, negative
// is wheel_down
// Low word represents button state
const mouse_wheel_direction: i16 = blk: {
const wheelu32: u32 = event.dwButtonState >> 16;
const wheelu16: u16 = @truncate(wheelu32);
break :blk @bitCast(wheelu16);
};
const buttons: u16 = @truncate(event.dwButtonState);
// save the current state when we are done
defer self.last_mouse_button_press = buttons;
const button_xor = self.last_mouse_button_press ^ buttons;
var event_type: Mouse.Type = .press;
const btn: Mouse.Button = switch (button_xor) {
0x0000 => blk: {
// Check wheel event
if (event.dwEventFlags & 0x0004 > 0) {
if (mouse_wheel_direction > 0)
break :blk .wheel_up
else
break :blk .wheel_down;
}
// If we have no change but one of the buttons is still pressed we have a
// drag event. Find out which button is held down
if (buttons > 0 and event.dwEventFlags & 0x0001 > 0) {
event_type = .drag;
if (buttons & 0x0001 > 0) break :blk .left;
if (buttons & 0x0002 > 0) break :blk .right;
if (buttons & 0x0004 > 0) break :blk .middle;
if (buttons & 0x0008 > 0) break :blk .button_8;
if (buttons & 0x0010 > 0) break :blk .button_9;
}
if (event.dwEventFlags & 0x0001 > 0) event_type = .motion;
break :blk .none;
},
0x0001 => blk: {
if (buttons & 0x0001 == 0) event_type = .release;
break :blk .left;
},
0x0002 => blk: {
if (buttons & 0x0002 == 0) event_type = .release;
break :blk .right;
},
0x0004 => blk: {
if (buttons & 0x0004 == 0) event_type = .release;
break :blk .middle;
},
0x0008 => blk: {
if (buttons & 0x0008 == 0) event_type = .release;
break :blk .button_8;
},
0x0010 => blk: {
if (buttons & 0x0010 == 0) event_type = .release;
break :blk .button_9;
},
else => {
std.log.warn("unknown mouse event: {}", .{event});
continue;
},
};
const shift: u32 = 0x0010;
const alt: u32 = 0x0001 | 0x0002;
const ctrl: u32 = 0x0004 | 0x0008;
const mods: Mouse.Modifiers = .{
.shift = event.dwControlKeyState & shift > 0,
.alt = event.dwControlKeyState & alt > 0,
.ctrl = event.dwControlKeyState & ctrl > 0,
};
const mouse: Mouse = .{
.col = @as(u16, @bitCast(event.dwMousePosition.X)), // Windows reports with 0 index
.row = @as(u16, @bitCast(event.dwMousePosition.Y)), // Windows reports with 0 index
.mods = mods,
.type = event_type,
.button = btn,
};
return .{ .mouse = mouse };
},
0x0004 => { // Screen resize events
// NOTE: Even though the event comes with a size, it may not be accurate. We ask for
// the size directly when we get this event
var console_info: windows.CONSOLE_SCREEN_BUFFER_INFO = undefined;
if (windows.kernel32.GetConsoleScreenBufferInfo(self.stdout, &console_info) == 0) {
return windows.unexpectedError(windows.kernel32.GetLastError());
}
const window_rect = console_info.srWindow;
const width = window_rect.Right - window_rect.Left + 1;
const height = window_rect.Bottom - window_rect.Top + 1;
return .{
.winsize = .{
.cols = @intCast(width),
.rows = @intCast(height),
.x_pixel = 0,
.y_pixel = 0,
},
};
},
0x0010 => { // Focus events
switch (input_record.Event.FocusEvent.bSetFocus) {
0 => return .focus_out,
else => return .focus_in,
}
},
else => {},
} }
} }
} }
pub const EventState = struct {
ansi_buf: [128]u8 = undefined,
ansi_idx: usize = 0,
escape_st: bool = false,
};
pub fn eventFromRecord(self: *Tty, record: *const INPUT_RECORD, state: *EventState) !?Event {
switch (record.EventType) {
0x0001 => { // Key event
const event = record.Event.KeyEvent;
const base_layout: u21 = switch (event.wVirtualKeyCode) {
0x00 => { // delivered when we get an escape sequence
state.ansi_buf[state.ansi_idx] = event.uChar.AsciiChar;
state.ansi_idx += 1;
if (state.ansi_idx <= 2) {
return null;
}
switch (state.ansi_buf[1]) {
'[' => { // CSI, read until 0x40 to 0xFF
switch (event.uChar.AsciiChar) {
0x40...0xFF => {
return .cap_da1;
},
else => return null,
}
},
']' => { // OSC, read until ESC \ or BEL
switch (event.uChar.AsciiChar) {
0x07 => {
return .cap_da1;
},
0x1B => {
state.escape_st = true;
return null;
},
'\\' => {
if (state.escape_st) {
return .cap_da1;
}
return null;
},
else => return null,
}
},
else => return null,
}
},
0x08 => Key.backspace,
0x09 => Key.tab,
0x0D => Key.enter,
0x13 => Key.pause,
0x14 => Key.caps_lock,
0x1B => Key.escape,
0x20 => Key.space,
0x21 => Key.page_up,
0x22 => Key.page_down,
0x23 => Key.end,
0x24 => Key.home,
0x25 => Key.left,
0x26 => Key.up,
0x27 => Key.right,
0x28 => Key.down,
0x2c => Key.print_screen,
0x2d => Key.insert,
0x2e => Key.delete,
0x30...0x39 => |k| k,
0x41...0x5a => |k| k + 0x20, // translate to lowercase
0x5b => Key.left_meta,
0x5c => Key.right_meta,
0x60 => Key.kp_0,
0x61 => Key.kp_1,
0x62 => Key.kp_2,
0x63 => Key.kp_3,
0x64 => Key.kp_4,
0x65 => Key.kp_5,
0x66 => Key.kp_6,
0x67 => Key.kp_7,
0x68 => Key.kp_8,
0x69 => Key.kp_9,
0x6a => Key.kp_multiply,
0x6b => Key.kp_add,
0x6c => Key.kp_separator,
0x6d => Key.kp_subtract,
0x6e => Key.kp_decimal,
0x6f => Key.kp_divide,
0x70 => Key.f1,
0x71 => Key.f2,
0x72 => Key.f3,
0x73 => Key.f4,
0x74 => Key.f5,
0x75 => Key.f6,
0x76 => Key.f8,
0x77 => Key.f8,
0x78 => Key.f9,
0x79 => Key.f10,
0x7a => Key.f11,
0x7b => Key.f12,
0x7c => Key.f13,
0x7d => Key.f14,
0x7e => Key.f15,
0x7f => Key.f16,
0x80 => Key.f17,
0x81 => Key.f18,
0x82 => Key.f19,
0x83 => Key.f20,
0x84 => Key.f21,
0x85 => Key.f22,
0x86 => Key.f23,
0x87 => Key.f24,
0x90 => Key.num_lock,
0x91 => Key.scroll_lock,
0xa0 => Key.left_shift,
0xa1 => Key.right_shift,
0xa2 => Key.left_control,
0xa3 => Key.right_control,
0xa4 => Key.left_alt,
0xa5 => Key.right_alt,
0xad => Key.mute_volume,
0xae => Key.lower_volume,
0xaf => Key.raise_volume,
0xb0 => Key.media_track_next,
0xb1 => Key.media_track_previous,
0xb2 => Key.media_stop,
0xb3 => Key.media_play_pause,
0xba => ';',
0xbb => '+',
0xbc => ',',
0xbd => '-',
0xbe => '.',
0xbf => '/',
0xc0 => '`',
0xdb => '[',
0xdc => '\\',
0xdd => ']',
0xde => '\'',
else => return null,
};
var codepoint: u21 = base_layout;
var text: ?[]const u8 = null;
switch (event.uChar.UnicodeChar) {
0x00...0x1F => {},
else => |cp| {
codepoint = cp;
const n = try std.unicode.utf8Encode(cp, &self.buf);
text = self.buf[0..n];
},
}
const key: Key = .{
.codepoint = codepoint,
.base_layout_codepoint = base_layout,
.mods = translateMods(event.dwControlKeyState),
.text = text,
};
switch (event.bKeyDown) {
0 => return .{ .key_release = key },
else => return .{ .key_press = key },
}
},
0x0002 => { // Mouse event
// see https://learn.microsoft.com/en-us/windows/console/mouse-event-record-str
const event = record.Event.MouseEvent;
// High word of dwButtonState represents mouse wheel. Positive is wheel_up, negative
// is wheel_down
// Low word represents button state
const mouse_wheel_direction: i16 = blk: {
const wheelu32: u32 = event.dwButtonState >> 16;
const wheelu16: u16 = @truncate(wheelu32);
break :blk @bitCast(wheelu16);
};
const buttons: u16 = @truncate(event.dwButtonState);
// save the current state when we are done
defer self.last_mouse_button_press = buttons;
const button_xor = self.last_mouse_button_press ^ buttons;
var event_type: Mouse.Type = .press;
const btn: Mouse.Button = switch (button_xor) {
0x0000 => blk: {
// Check wheel event
if (event.dwEventFlags & 0x0004 > 0) {
if (mouse_wheel_direction > 0)
break :blk .wheel_up
else
break :blk .wheel_down;
}
// If we have no change but one of the buttons is still pressed we have a
// drag event. Find out which button is held down
if (buttons > 0 and event.dwEventFlags & 0x0001 > 0) {
event_type = .drag;
if (buttons & 0x0001 > 0) break :blk .left;
if (buttons & 0x0002 > 0) break :blk .right;
if (buttons & 0x0004 > 0) break :blk .middle;
if (buttons & 0x0008 > 0) break :blk .button_8;
if (buttons & 0x0010 > 0) break :blk .button_9;
}
if (event.dwEventFlags & 0x0001 > 0) event_type = .motion;
break :blk .none;
},
0x0001 => blk: {
if (buttons & 0x0001 == 0) event_type = .release;
break :blk .left;
},
0x0002 => blk: {
if (buttons & 0x0002 == 0) event_type = .release;
break :blk .right;
},
0x0004 => blk: {
if (buttons & 0x0004 == 0) event_type = .release;
break :blk .middle;
},
0x0008 => blk: {
if (buttons & 0x0008 == 0) event_type = .release;
break :blk .button_8;
},
0x0010 => blk: {
if (buttons & 0x0010 == 0) event_type = .release;
break :blk .button_9;
},
else => {
std.log.warn("unknown mouse event: {}", .{event});
return null;
},
};
const shift: u32 = 0x0010;
const alt: u32 = 0x0001 | 0x0002;
const ctrl: u32 = 0x0004 | 0x0008;
const mods: Mouse.Modifiers = .{
.shift = event.dwControlKeyState & shift > 0,
.alt = event.dwControlKeyState & alt > 0,
.ctrl = event.dwControlKeyState & ctrl > 0,
};
const mouse: Mouse = .{
.col = @as(u16, @bitCast(event.dwMousePosition.X)), // Windows reports with 0 index
.row = @as(u16, @bitCast(event.dwMousePosition.Y)), // Windows reports with 0 index
.mods = mods,
.type = event_type,
.button = btn,
};
return .{ .mouse = mouse };
},
0x0004 => { // Screen resize events
// NOTE: Even though the event comes with a size, it may not be accurate. We ask for
// the size directly when we get this event
var console_info: windows.CONSOLE_SCREEN_BUFFER_INFO = undefined;
if (windows.kernel32.GetConsoleScreenBufferInfo(self.stdout, &console_info) == 0) {
return windows.unexpectedError(windows.kernel32.GetLastError());
}
const window_rect = console_info.srWindow;
const width = window_rect.Right - window_rect.Left + 1;
const height = window_rect.Bottom - window_rect.Top + 1;
return .{
.winsize = .{
.cols = @intCast(width),
.rows = @intCast(height),
.x_pixel = 0,
.y_pixel = 0,
},
};
},
0x0010 => { // Focus events
switch (record.Event.FocusEvent.bSetFocus) {
0 => return .focus_out,
else => return .focus_in,
}
},
else => {},
}
return null;
}
fn translateMods(mods: u32) Key.Modifiers { fn translateMods(mods: u32) Key.Modifiers {
const left_alt: u32 = 0x0002; const left_alt: u32 = 0x0002;
const right_alt: u32 = 0x0001; const right_alt: u32 = 0x0001;