Make Keyboard a toplevel struct
This commit is contained in:
Isaac Freund
parent
97d395dbfc
commit
ed98e8fe1a
275
src/keyboard.zig
275
src/keyboard.zig
@ -1,164 +1,163 @@
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const Self = @This();
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const std = @import("std");
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const c = @import("c.zig");
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const Log = @import("log.zig").Log;
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const Seat = @import("seat.zig");
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pub const Keyboard = struct {
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const Self = @This();
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seat: *Seat,
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wlr_input_device: *c.wlr_input_device,
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wlr_keyboard: *c.wlr_keyboard,
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seat: *Seat,
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wlr_input_device: *c.wlr_input_device,
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wlr_keyboard: *c.wlr_keyboard,
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listen_key: c.wl_listener,
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listen_modifiers: c.wl_listener,
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listen_key: c.wl_listener,
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listen_modifiers: c.wl_listener,
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pub fn init(self: *Self, seat: *Seat, wlr_input_device: *c.wlr_input_device) !void {
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self.seat = seat;
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self.wlr_input_device = wlr_input_device;
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self.wlr_keyboard = @field(wlr_input_device, c.wlr_input_device_union).keyboard;
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pub fn init(self: *Self, seat: *Seat, wlr_input_device: *c.wlr_input_device) !void {
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self.seat = seat;
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self.wlr_input_device = wlr_input_device;
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self.wlr_keyboard = @field(wlr_input_device, c.wlr_input_device_union).keyboard;
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// We need to prepare an XKB keymap and assign it to the keyboard. This
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// assumes the defaults (e.g. layout = "us").
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const rules = c.xkb_rule_names{
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.rules = null,
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.model = null,
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.layout = null,
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.variant = null,
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.options = null,
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};
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const context = c.xkb_context_new(.XKB_CONTEXT_NO_FLAGS) orelse
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return error.CantCreateXkbContext;
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defer c.xkb_context_unref(context);
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// We need to prepare an XKB keymap and assign it to the keyboard. This
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// assumes the defaults (e.g. layout = "us").
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const rules = c.xkb_rule_names{
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.rules = null,
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.model = null,
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.layout = null,
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.variant = null,
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.options = null,
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};
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const context = c.xkb_context_new(.XKB_CONTEXT_NO_FLAGS) orelse
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return error.CantCreateXkbContext;
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defer c.xkb_context_unref(context);
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const keymap = c.xkb_keymap_new_from_names(
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context,
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&rules,
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.XKB_KEYMAP_COMPILE_NO_FLAGS,
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) orelse
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return error.CantCreateXkbKeymap;
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defer c.xkb_keymap_unref(keymap);
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const keymap = c.xkb_keymap_new_from_names(
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context,
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&rules,
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.XKB_KEYMAP_COMPILE_NO_FLAGS,
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) orelse
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return error.CantCreateXkbKeymap;
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defer c.xkb_keymap_unref(keymap);
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// TODO: handle failure after https://github.com/swaywm/wlroots/pull/2081
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c.wlr_keyboard_set_keymap(self.wlr_keyboard, keymap);
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c.wlr_keyboard_set_repeat_info(self.wlr_keyboard, 25, 600);
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// TODO: handle failure after https://github.com/swaywm/wlroots/pull/2081
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c.wlr_keyboard_set_keymap(self.wlr_keyboard, keymap);
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c.wlr_keyboard_set_repeat_info(self.wlr_keyboard, 25, 600);
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// Setup listeners for keyboard events
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self.listen_key.notify = handleKey;
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c.wl_signal_add(&self.wlr_keyboard.events.key, &self.listen_key);
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// Setup listeners for keyboard events
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self.listen_key.notify = handleKey;
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c.wl_signal_add(&self.wlr_keyboard.events.key, &self.listen_key);
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self.listen_modifiers.notify = handleModifiers;
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c.wl_signal_add(&self.wlr_keyboard.events.modifiers, &self.listen_modifiers);
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}
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self.listen_modifiers.notify = handleModifiers;
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c.wl_signal_add(&self.wlr_keyboard.events.modifiers, &self.listen_modifiers);
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}
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fn handleKey(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
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// This event is raised when a key is pressed or released.
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const self = @fieldParentPtr(Self, "listen_key", listener.?);
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const event = @ptrCast(
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*c.wlr_event_keyboard_key,
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@alignCast(@alignOf(*c.wlr_event_keyboard_key), data),
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);
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fn handleKey(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
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// This event is raised when a key is pressed or released.
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const self = @fieldParentPtr(Self, "listen_key", listener.?);
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const event = @ptrCast(
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*c.wlr_event_keyboard_key,
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@alignCast(@alignOf(*c.wlr_event_keyboard_key), data),
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);
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const wlr_keyboard = self.wlr_keyboard;
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const wlr_keyboard = self.wlr_keyboard;
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// Translate libinput keycode -> xkbcommon
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const keycode = event.keycode + 8;
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// Translate libinput keycode -> xkbcommon
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const keycode = event.keycode + 8;
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// Get a list of keysyms as xkb reports them
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var translated_keysyms: ?[*]c.xkb_keysym_t = undefined;
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const translated_keysyms_len = c.xkb_state_key_get_syms(
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wlr_keyboard.xkb_state,
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keycode,
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&translated_keysyms,
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);
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// Get a list of keysyms as xkb reports them
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var translated_keysyms: ?[*]c.xkb_keysym_t = undefined;
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const translated_keysyms_len = c.xkb_state_key_get_syms(
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wlr_keyboard.xkb_state,
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keycode,
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&translated_keysyms,
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);
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// Get a list of keysyms ignoring modifiers (e.g. 1 instead of !)
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// Important for bindings like Mod+Shift+1
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var raw_keysyms: ?[*]c.xkb_keysym_t = undefined;
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const layout_index = c.xkb_state_key_get_layout(wlr_keyboard.xkb_state, keycode);
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const raw_keysyms_len = c.xkb_keymap_key_get_syms_by_level(
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wlr_keyboard.keymap,
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keycode,
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layout_index,
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0,
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&raw_keysyms,
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);
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// Get a list of keysyms ignoring modifiers (e.g. 1 instead of !)
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// Important for bindings like Mod+Shift+1
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var raw_keysyms: ?[*]c.xkb_keysym_t = undefined;
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const layout_index = c.xkb_state_key_get_layout(wlr_keyboard.xkb_state, keycode);
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const raw_keysyms_len = c.xkb_keymap_key_get_syms_by_level(
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wlr_keyboard.keymap,
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keycode,
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layout_index,
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0,
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&raw_keysyms,
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);
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var handled = false;
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// TODO: These modifiers aren't properly handled, see sway's code
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const modifiers = c.wlr_keyboard_get_modifiers(wlr_keyboard);
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if (event.state == .WLR_KEY_PRESSED) {
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var i: usize = 0;
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while (i < translated_keysyms_len) : (i += 1) {
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if (self.handleBuiltinKeybind(translated_keysyms.?[i])) {
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handled = true;
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break;
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} else if (self.seat.handleKeybinding(translated_keysyms.?[i], modifiers)) {
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handled = true;
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break;
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}
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}
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if (!handled) {
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i = 0;
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while (i < raw_keysyms_len) : (i += 1) {
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if (self.handleBuiltinKeybind(raw_keysyms.?[i])) {
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handled = true;
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break;
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} else if (self.seat.handleKeybinding(raw_keysyms.?[i], modifiers)) {
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handled = true;
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break;
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}
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}
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var handled = false;
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// TODO: These modifiers aren't properly handled, see sway's code
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const modifiers = c.wlr_keyboard_get_modifiers(wlr_keyboard);
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if (event.state == .WLR_KEY_PRESSED) {
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var i: usize = 0;
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while (i < translated_keysyms_len) : (i += 1) {
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if (self.handleBuiltinKeybind(translated_keysyms.?[i])) {
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handled = true;
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break;
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} else if (self.seat.handleKeybinding(translated_keysyms.?[i], modifiers)) {
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handled = true;
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break;
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}
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}
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if (!handled) {
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// Otherwise, we pass it along to the client.
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const wlr_seat = self.seat.wlr_seat;
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c.wlr_seat_set_keyboard(wlr_seat, self.wlr_input_device);
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c.wlr_seat_keyboard_notify_key(
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wlr_seat,
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event.time_msec,
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event.keycode,
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@intCast(u32, @enumToInt(event.state)),
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);
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}
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}
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fn handleModifiers(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
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// This event is raised when a modifier key, such as shift or alt, is
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// pressed. We simply communicate this to the client. */
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const self = @fieldParentPtr(Self, "listen_modifiers", listener.?);
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// A seat can only have one keyboard, but this is a limitation of the
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// Wayland protocol - not wlroots. We assign all connected keyboards to the
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// same seat. You can swap out the underlying wlr_keyboard like this and
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// wlr_seat handles this transparently.
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c.wlr_seat_set_keyboard(self.seat.wlr_seat, self.wlr_input_device);
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// Send modifiers to the client.
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c.wlr_seat_keyboard_notify_modifiers(
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self.seat.wlr_seat,
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&self.wlr_keyboard.modifiers,
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);
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}
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/// Handle any builtin, harcoded compsitor bindings such as VT switching.
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/// Returns true if the keysym was handled.
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fn handleBuiltinKeybind(self: Self, keysym: c.xkb_keysym_t) bool {
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if (keysym >= c.XKB_KEY_XF86Switch_VT_1 and keysym <= c.XKB_KEY_XF86Switch_VT_12) {
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Log.Debug.log("Switch VT keysym received", .{});
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const wlr_backend = self.seat.input_manager.server.wlr_backend;
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if (c.river_wlr_backend_is_multi(wlr_backend)) {
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if (c.river_wlr_backend_get_session(wlr_backend)) |session| {
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const vt = keysym - c.XKB_KEY_XF86Switch_VT_1 + 1;
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Log.Debug.log("Switching to VT {}", .{vt});
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_ = c.wlr_session_change_vt(session, vt);
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i = 0;
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while (i < raw_keysyms_len) : (i += 1) {
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if (self.handleBuiltinKeybind(raw_keysyms.?[i])) {
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handled = true;
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break;
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} else if (self.seat.handleKeybinding(raw_keysyms.?[i], modifiers)) {
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handled = true;
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break;
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}
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}
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return true;
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}
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return false;
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}
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};
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if (!handled) {
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// Otherwise, we pass it along to the client.
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const wlr_seat = self.seat.wlr_seat;
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c.wlr_seat_set_keyboard(wlr_seat, self.wlr_input_device);
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c.wlr_seat_keyboard_notify_key(
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wlr_seat,
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event.time_msec,
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event.keycode,
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@intCast(u32, @enumToInt(event.state)),
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);
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}
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}
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fn handleModifiers(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
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// This event is raised when a modifier key, such as shift or alt, is
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// pressed. We simply communicate this to the client. */
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const self = @fieldParentPtr(Self, "listen_modifiers", listener.?);
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// A seat can only have one keyboard, but this is a limitation of the
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// Wayland protocol - not wlroots. We assign all connected keyboards to the
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// same seat. You can swap out the underlying wlr_keyboard like this and
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// wlr_seat handles this transparently.
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c.wlr_seat_set_keyboard(self.seat.wlr_seat, self.wlr_input_device);
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// Send modifiers to the client.
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c.wlr_seat_keyboard_notify_modifiers(
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self.seat.wlr_seat,
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&self.wlr_keyboard.modifiers,
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);
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}
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/// Handle any builtin, harcoded compsitor bindings such as VT switching.
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/// Returns true if the keysym was handled.
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fn handleBuiltinKeybind(self: Self, keysym: c.xkb_keysym_t) bool {
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if (keysym >= c.XKB_KEY_XF86Switch_VT_1 and keysym <= c.XKB_KEY_XF86Switch_VT_12) {
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Log.Debug.log("Switch VT keysym received", .{});
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const wlr_backend = self.seat.input_manager.server.wlr_backend;
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if (c.river_wlr_backend_is_multi(wlr_backend)) {
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if (c.river_wlr_backend_get_session(wlr_backend)) |session| {
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const vt = keysym - c.XKB_KEY_XF86Switch_VT_1 + 1;
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Log.Debug.log("Switching to VT {}", .{vt});
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_ = c.wlr_session_change_vt(session, vt);
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}
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}
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return true;
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}
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return false;
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}
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@ -5,7 +5,7 @@ const std = @import("std");
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const Cursor = @import("cursor.zig");
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const InputManager = @import("input_manager.zig");
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const Keyboard = @import("keyboard.zig").Keyboard;
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const Keyboard = @import("keyboard.zig");
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const LayerSurface = @import("layer_surface.zig");
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const Output = @import("output.zig");
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const View = @import("view.zig");
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