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Diffstat (limited to 'src/Keyboard.zig')
| -rw-r--r-- | src/Keyboard.zig | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/src/Keyboard.zig b/src/Keyboard.zig deleted file mode 100644 index cbfd6cd..0000000 --- a/src/Keyboard.zig +++ /dev/null @@ -1,180 +0,0 @@ -// This file is part of river, a dynamic tiling wayland compositor. -// -// Copyright 2020 Isaac Freund -// -// This program is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program. If not, see <https://www.gnu.org/licenses/>. - -const Self = @This(); - -const std = @import("std"); - -const c = @import("c.zig"); - -const Log = @import("log.zig").Log; -const Seat = @import("Seat.zig"); - -seat: *Seat, -wlr_input_device: *c.wlr_input_device, -wlr_keyboard: *c.wlr_keyboard, - -listen_key: c.wl_listener, -listen_modifiers: c.wl_listener, - -pub fn init(self: *Self, seat: *Seat, wlr_input_device: *c.wlr_input_device) !void { - self.seat = seat; - self.wlr_input_device = wlr_input_device; - self.wlr_keyboard = @field(wlr_input_device, c.wlr_input_device_union).keyboard; - - // We need to prepare an XKB keymap and assign it to the keyboard. This - // assumes the defaults (e.g. layout = "us"). - const rules = c.xkb_rule_names{ - .rules = null, - .model = null, - .layout = null, - .variant = null, - .options = null, - }; - const context = c.xkb_context_new(.XKB_CONTEXT_NO_FLAGS) orelse - return error.CantCreateXkbContext; - defer c.xkb_context_unref(context); - - const keymap = c.xkb_keymap_new_from_names( - context, - &rules, - .XKB_KEYMAP_COMPILE_NO_FLAGS, - ) orelse - return error.CantCreateXkbKeymap; - defer c.xkb_keymap_unref(keymap); - - // TODO: handle failure after https://github.com/swaywm/wlroots/pull/2081 - c.wlr_keyboard_set_keymap(self.wlr_keyboard, keymap); - c.wlr_keyboard_set_repeat_info(self.wlr_keyboard, 25, 600); - - // Setup listeners for keyboard events - self.listen_key.notify = handleKey; - c.wl_signal_add(&self.wlr_keyboard.events.key, &self.listen_key); - - self.listen_modifiers.notify = handleModifiers; - c.wl_signal_add(&self.wlr_keyboard.events.modifiers, &self.listen_modifiers); -} - -fn handleKey(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void { - // This event is raised when a key is pressed or released. - const self = @fieldParentPtr(Self, "listen_key", listener.?); - const event = @ptrCast( - *c.wlr_event_keyboard_key, - @alignCast(@alignOf(*c.wlr_event_keyboard_key), data), - ); - - const wlr_keyboard = self.wlr_keyboard; - - // Translate libinput keycode -> xkbcommon - const keycode = event.keycode + 8; - - // Get a list of keysyms as xkb reports them - var translated_keysyms: ?[*]c.xkb_keysym_t = undefined; - const translated_keysyms_len = c.xkb_state_key_get_syms( - wlr_keyboard.xkb_state, - keycode, - &translated_keysyms, - ); - - // Get a list of keysyms ignoring modifiers (e.g. 1 instead of !) - // Important for mappings like Mod+Shift+1 - var raw_keysyms: ?[*]c.xkb_keysym_t = undefined; - const layout_index = c.xkb_state_key_get_layout(wlr_keyboard.xkb_state, keycode); - const raw_keysyms_len = c.xkb_keymap_key_get_syms_by_level( - wlr_keyboard.keymap, - keycode, - layout_index, - 0, - &raw_keysyms, - ); - - var handled = false; - // TODO: These modifiers aren't properly handled, see sway's code - const modifiers = c.wlr_keyboard_get_modifiers(wlr_keyboard); - if (event.state == .WLR_KEY_PRESSED) { - var i: usize = 0; - while (i < translated_keysyms_len) : (i += 1) { - if (self.handleBuiltinMapping(translated_keysyms.?[i])) { - handled = true; - break; - } else if (self.seat.handleMapping(translated_keysyms.?[i], modifiers)) { - handled = true; - break; - } - } - if (!handled) { - i = 0; - while (i < raw_keysyms_len) : (i += 1) { - if (self.handleBuiltinMapping(raw_keysyms.?[i])) { - handled = true; - break; - } else if (self.seat.handleMapping(raw_keysyms.?[i], modifiers)) { - handled = true; - break; - } - } - } - } - - if (!handled) { - // Otherwise, we pass it along to the client. - const wlr_seat = self.seat.wlr_seat; - c.wlr_seat_set_keyboard(wlr_seat, self.wlr_input_device); - c.wlr_seat_keyboard_notify_key( - wlr_seat, - event.time_msec, - event.keycode, - @intCast(u32, @enumToInt(event.state)), - ); - } -} - -fn handleModifiers(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void { - // This event is raised when a modifier key, such as shift or alt, is - // pressed. We simply communicate this to the client. */ - const self = @fieldParentPtr(Self, "listen_modifiers", listener.?); - - // A seat can only have one keyboard, but this is a limitation of the - // Wayland protocol - not wlroots. We assign all connected keyboards to the - // same seat. You can swap out the underlying wlr_keyboard like this and - // wlr_seat handles this transparently. - c.wlr_seat_set_keyboard(self.seat.wlr_seat, self.wlr_input_device); - - // Send modifiers to the client. - c.wlr_seat_keyboard_notify_modifiers( - self.seat.wlr_seat, - &self.wlr_keyboard.modifiers, - ); -} - -/// Handle any builtin, harcoded compsitor mappings such as VT switching. -/// Returns true if the keysym was handled. -fn handleBuiltinMapping(self: Self, keysym: c.xkb_keysym_t) bool { - if (keysym >= c.XKB_KEY_XF86Switch_VT_1 and keysym <= c.XKB_KEY_XF86Switch_VT_12) { - Log.Debug.log("Switch VT keysym received", .{}); - const wlr_backend = self.seat.input_manager.server.wlr_backend; - if (c.river_wlr_backend_is_multi(wlr_backend)) { - if (c.river_wlr_backend_get_session(wlr_backend)) |session| { - const vt = keysym - c.XKB_KEY_XF86Switch_VT_1 + 1; - Log.Debug.log("Switching to VT {}", .{vt}); - _ = c.wlr_session_change_vt(session, vt); - } - } - return true; - } - return false; -} |