river/river/util.zig
Leon Henrik Plickat a3c6571326 cursor: reset state if needed on transaction commit
A transaction may move the current target of a cursor action to a
non-visible tag, make it fullscreen, or otherwise change things such
that the current cursor state no longer makes sense.

To handle this, check if we should reset cursor state every time a
transaction is committed.
2021-07-23 11:48:01 +00:00

33 lines
1.4 KiB
Zig

// This file is part of river, a dynamic tiling wayland compositor.
//
// Copyright 2020 The River Developers
//
// 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 os = std.os;
/// The global general-purpose allocator used throughout river's code
pub const gpa = std.heap.c_allocator;
/// Take a pointer to c_void and cast it to a pointer to T. This function
/// exists to avoid having the verbosity of the required alignment casts all
/// over the code.
pub fn voidCast(comptime T: type, ptr: anytype) *T {
// See https://github.com/ziglang/zig/issues/5618
if (@TypeOf(ptr) != *c_void)
@compileError("voidCast takes *c_void but " ++ @typeName(@TypeOf(ptr)) ++ " was provided");
return @ptrCast(*T, @alignCast(@alignOf(*T), ptr));
}