55 lines
1.6 KiB
Zig
55 lines
1.6 KiB
Zig
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// This file is part of river, a dynamic tiling wayland compositor.
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//
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// Copyright 2023 The River Developers
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 3.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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const SceneNodeData = @This();
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const build_options = @import("build_options");
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const wlr = @import("wlroots");
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const wl = @import("wayland").server.wl;
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const util = @import("util.zig");
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const View = @import("View.zig");
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const Data = union(enum) {
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view: *View,
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};
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node: *wlr.SceneNode,
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data: Data,
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destroy: wl.Listener(void) = wl.Listener(void).init(handleDestroy),
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pub fn attach(node: *wlr.SceneNode, data: Data) error{OutOfMemory}!void {
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const scene_node_data = try util.gpa.create(SceneNodeData);
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scene_node_data.* = .{
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.node = node,
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.data = data,
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};
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node.data = @ptrToInt(scene_node_data);
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node.events.destroy.add(&scene_node_data.destroy);
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}
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fn handleDestroy(listener: *wl.Listener(void)) void {
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const scene_node_data = @fieldParentPtr(SceneNodeData, "destroy", listener);
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scene_node_data.destroy.link.remove();
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scene_node_data.node.data = 0;
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util.gpa.destroy(scene_node_data);
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}
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