river/river/OutputStatus.zig
2022-12-01 15:51:00 +01:00

113 lines
3.5 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, version 3.
//
// 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 wayland = @import("wayland");
const wl = wayland.server.wl;
const zriver = wayland.server.zriver;
const util = @import("util.zig");
const Output = @import("Output.zig");
const View = @import("View.zig");
const ViewStack = @import("view_stack.zig").ViewStack;
const log = std.log.scoped(.river_status);
output: *Output,
output_status: *zriver.OutputStatusV1,
pub fn init(self: *Self, output: *Output, output_status: *zriver.OutputStatusV1) void {
self.* = .{ .output = output, .output_status = output_status };
output_status.setHandler(*Self, handleRequest, handleDestroy, self);
// Send view/focused/urgent tags once on bind.
self.sendViewTags();
self.sendFocusedTags(output.current.tags);
var urgent_tags: u32 = 0;
var view_it = self.output.views.first;
while (view_it) |node| : (view_it = node.next) {
if (node.view.current.urgent) urgent_tags |= node.view.current.tags;
}
self.sendUrgentTags(urgent_tags);
if (output.layout_name) |name| {
self.sendLayoutName(name);
}
}
pub fn destroy(self: *Self) void {
const node = @fieldParentPtr(std.SinglyLinkedList(Self).Node, "data", self);
self.output.status_trackers.remove(node);
self.output_status.setHandler(*Self, handleRequest, null, self);
util.gpa.destroy(node);
}
fn handleRequest(output_status: *zriver.OutputStatusV1, request: zriver.OutputStatusV1.Request, _: *Self) void {
switch (request) {
.destroy => output_status.destroy(),
}
}
fn handleDestroy(_: *zriver.OutputStatusV1, self: *Self) void {
self.destroy();
}
/// Send the current tags of each view on the output to the client.
pub fn sendViewTags(self: Self) void {
var view_tags = std.ArrayList(u32).init(util.gpa);
defer view_tags.deinit();
var it = self.output.views.first;
while (it) |node| : (it = node.next) {
if (node.view.surface == null) continue;
view_tags.append(node.view.current.tags) catch {
self.output_status.postNoMemory();
log.err("out of memory", .{});
return;
};
}
var wl_array = wl.Array.fromArrayList(u32, view_tags);
self.output_status.sendViewTags(&wl_array);
}
pub fn sendFocusedTags(self: Self, tags: u32) void {
self.output_status.sendFocusedTags(tags);
}
pub fn sendUrgentTags(self: Self, tags: u32) void {
if (self.output_status.getVersion() >= 2) {
self.output_status.sendUrgentTags(tags);
}
}
pub fn sendLayoutName(self: Self, name: [:0]const u8) void {
if (self.output_status.getVersion() >= 4) {
self.output_status.sendLayoutName(name);
}
}
pub fn sendLayoutNameClear(self: Self) void {
if (self.output_status.getVersion() >= 4) {
self.output_status.sendLayoutNameClear();
}
}