Implement csd-filter-add and float-filter-add commands

river/command/filter.zig

@@ -0,0 +1,59 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Leon Henrik Plickat
+//
+// 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 util = @import("../util.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+fn appendFilter(
+    allocator: *std.mem.Allocator,
+    list: *std.ArrayList([]const u8),
+    args: []const []const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+    try list.append(try std.mem.dupe(allocator, u8, args[1]));
+}
+
+pub fn floatFilterAdd(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    out: *?[]const u8,
+) Error!void {
+    try appendFilter(
+        allocator,
+        &seat.input_manager.server.config.float_filter,
+        args,
+    );
+}
+
+pub fn csdFilterAdd(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    out: *?[]const u8,
+) Error!void {
+    try appendFilter(
+        allocator,
+        &seat.input_manager.server.config.csd_filter,
+        args,
+    );
+}