cd005e15f8
This is done when river's internal Output struct is destroyed, not when the advertised wl_output global is removed. This means that options will persist when an output is disabled and re-enabled.
108 lines
3.6 KiB
Zig
108 lines
3.6 KiB
Zig
// This file is part of river, a dynamic tiling wayland compositor.
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//
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// Copyright 2020 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, either version 3 of the License, or
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// (at your option) any later version.
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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 Self = @This();
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const std = @import("std");
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const wayland = @import("wayland");
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const wl = wayland.server.wl;
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const zriver = wayland.server.zriver;
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const wlr = @import("wlroots");
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const util = @import("util.zig");
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const Option = @import("Option.zig");
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const Output = @import("Output.zig");
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const Server = @import("Server.zig");
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global: *wl.Global,
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server_destroy: wl.Listener(*wl.Server) = wl.Listener(*wl.Server).init(handleServerDestroy),
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options: wl.list.Head(Option, "link") = undefined,
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pub fn init(self: *Self, server: *Server) !void {
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self.* = .{
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.global = try wl.Global.create(server.wl_server, zriver.OptionsManagerV1, 1, *Self, self, bind),
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};
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self.options.init();
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server.wl_server.addDestroyListener(&self.server_destroy);
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}
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pub fn handleOutputDestroy(self: *Self, output: *Output) void {
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var it = self.options.safeIterator(.forward);
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while (it.next()) |option| {
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if (option.output == output) option.destroy();
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}
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}
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fn handleServerDestroy(listener: *wl.Listener(*wl.Server), wl_server: *wl.Server) void {
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const self = @fieldParentPtr(Self, "server_destroy", listener);
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self.global.destroy();
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var it = self.options.safeIterator(.forward);
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while (it.next()) |option| option.destroy();
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}
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fn bind(client: *wl.Client, self: *Self, version: u32, id: u32) callconv(.C) void {
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const options_manager = zriver.OptionsManagerV1.create(client, 1, id) catch {
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client.postNoMemory();
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return;
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};
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options_manager.setHandler(*Self, handleRequest, null, self);
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}
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fn handleRequest(
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options_manager: *zriver.OptionsManagerV1,
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request: zriver.OptionsManagerV1.Request,
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self: *Self,
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) void {
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switch (request) {
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.destroy => options_manager.destroy(),
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.get_option_handle => |req| {
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const output = if (req.output) |wl_output| blk: {
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// Ignore if the wl_output is inert
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const wlr_output = wlr.Output.fromWlOutput(wl_output) orelse return;
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break :blk @intToPtr(*Output, wlr_output.data);
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} else null;
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// Look for an existing Option, if not found create a new one
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var it = self.options.iterator(.forward);
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const option = while (it.next()) |option| {
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if (option.output == output and std.cstr.cmp(option.key, req.key) == 0) {
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break option;
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}
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} else
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Option.create(self, output, req.key) catch {
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options_manager.getClient().postNoMemory();
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return;
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};
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const handle = zriver.OptionHandleV1.create(
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options_manager.getClient(),
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options_manager.getVersion(),
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req.handle,
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) catch {
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options_manager.getClient().postNoMemory();
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return;
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};
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option.addHandle(handle);
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},
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}
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}
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