1 files changed, 57 insertions, 0 deletions
diff --git a/src/DecorationManager.zig b/src/DecorationManager.zig
new file mode 100644
index 0000000..5a9abb4
--- /dev/null
+++ b/src/DecorationManager.zig
@@ -0,0 +1,57 @@
+// 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 Decoration = @import("Decoration.zig");
+const Server = @import("Server.zig");
+
+server: *Server,
+
+wlr_xdg_decoration_manager: *c.wlr_xdg_decoration_manager_v1,
+
+decorations: std.SinglyLinkedList(Decoration),
+
+listen_new_toplevel_decoration: c.wl_listener,
+
+pub fn init(self: *Self, server: *Server) !void {
+    self.server = server;
+    self.wlr_xdg_decoration_manager = c.wlr_xdg_decoration_manager_v1_create(server.wl_display) orelse
+        return error.CantCreateWlrXdgDecorationManager;
+
+    self.listen_new_toplevel_decoration.notify = handleNewToplevelDecoration;
+    c.wl_signal_add(
+        &self.wlr_xdg_decoration_manager.events.new_toplevel_decoration,
+        &self.listen_new_toplevel_decoration,
+    );
+}
+
+fn handleNewToplevelDecoration(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
+    const self = @fieldParentPtr(Self, "listen_new_toplevel_decoration", listener.?);
+    const wlr_xdg_toplevel_decoration = @ptrCast(
+        *c.wlr_xdg_toplevel_decoration_v1,
+        @alignCast(@alignOf(*c.wlr_xdg_toplevel_decoration_v1), data),
+    );
+
+    const node = self.decorations.allocateNode(self.server.allocator) catch unreachable;
+    node.data.init(self, wlr_xdg_toplevel_decoration);
+    self.decorations.prepend(node);
+}