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// 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 std = @import("std");
const c = @import("../c.zig");
const Error = @import("../command.zig").Error;
const Mapping = @import("../Mapping.zig");
const Seat = @import("../Seat.zig");
const modifier_names = [_]struct {
name: []const u8,
modifier: u32,
}{
.{ .name = "Shift", .modifier = c.WLR_MODIFIER_SHIFT },
.{ .name = "Lock", .modifier = c.WLR_MODIFIER_CAPS },
.{ .name = "Control", .modifier = c.WLR_MODIFIER_CTRL },
.{ .name = "Mod1", .modifier = c.WLR_MODIFIER_ALT },
.{ .name = "Mod2", .modifier = c.WLR_MODIFIER_MOD2 },
.{ .name = "Mod3", .modifier = c.WLR_MODIFIER_MOD3 },
.{ .name = "Mod4", .modifier = c.WLR_MODIFIER_LOGO },
.{ .name = "Mod5", .modifier = c.WLR_MODIFIER_MOD5 },
};
/// Create a new mapping for a given mode
///
/// Example:
/// map normal Mod4|Shift Return spawn alacritty
pub fn map(
allocator: *std.mem.Allocator,
seat: *Seat,
args: []const []const u8,
failure_message: *[]const u8,
) Error!void {
if (args.len < 4) return Error.NotEnoughArguments;
// Parse the mode
const config = seat.input_manager.server.config;
const target_mode = args[1];
const mode_id = config.mode_to_id.getValue(target_mode) orelse {
failure_message.* = try std.fmt.allocPrint(
allocator,
"cannot add mapping to non-existant mode '{}p'",
.{target_mode},
);
return Error.CommandFailed;
};
// Parse the modifiers
var it = std.mem.split(args[2], "|");
var modifiers: u32 = 0;
while (it.next()) |mod_name| {
for (modifier_names) |def| {
if (std.mem.eql(u8, def.name, mod_name)) {
modifiers |= def.modifier;
break;
}
} else {
failure_message.* = try std.fmt.allocPrint(
allocator,
"invalid modifier '{}'",
.{mod_name},
);
return Error.CommandFailed;
}
}
// Parse the keysym
const keysym_name = try std.cstr.addNullByte(allocator, args[3]);
defer allocator.free(keysym_name);
const keysym = c.xkb_keysym_from_name(keysym_name, .XKB_KEYSYM_CASE_INSENSITIVE);
if (keysym == c.XKB_KEY_NoSymbol) {
failure_message.* = try std.fmt.allocPrint(
allocator,
"invalid keysym '{}'",
.{args[3]},
);
return Error.CommandFailed;
}
// Check if the mapping already exists
const mode_mappings = &config.modes.items[mode_id];
for (mode_mappings.items) |existant_mapping| {
if (existant_mapping.modifiers == modifiers and existant_mapping.keysym == keysym) {
failure_message.* = try std.fmt.allocPrint(
allocator,
"a mapping for modifiers '{}' and keysym '{}' already exists",
.{ args[2], args[3] },
);
return Error.CommandFailed;
}
}
try mode_mappings.append(try Mapping.init(allocator, keysym, modifiers, args[4..]));
}
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