118 lines
4.4 KiB
Zig
118 lines
4.4 KiB
Zig
// This file is part of river, a dynamic tiling wayland compositor.
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//
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// Copyright 2021 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 std = @import("std");
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const assert = std.debug.assert;
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const mem = std.mem;
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const wlr = @import("wlroots");
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const flags = @import("flags");
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const server = &@import("../main.zig").server;
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const Direction = @import("../command.zig").Direction;
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const PhysicalDirectionDirection = @import("../command.zig").PhysicalDirection;
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const Error = @import("../command.zig").Error;
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const Output = @import("../Output.zig");
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const Seat = @import("../Seat.zig");
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pub fn focusOutput(
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seat: *Seat,
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args: []const [:0]const u8,
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_: *?[]const u8,
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) Error!void {
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if (args.len < 2) return Error.NotEnoughArguments;
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if (args.len > 2) return Error.TooManyArguments;
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// If the noop output is focused, there are no other outputs to switch to
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if (seat.focused_output == null) {
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assert(server.root.outputs.len == 0);
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return;
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}
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seat.focusOutput((try getOutput(seat, args[1])) orelse return);
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server.root.applyPending();
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}
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pub fn sendToOutput(
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seat: *Seat,
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args: []const [:0]const u8,
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_: *?[]const u8,
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) Error!void {
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if (args.len < 2) return Error.NotEnoughArguments;
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const result = flags.parser([:0]const u8, &.{
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.{ .name = "current-tags", .kind = .boolean },
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}).parse(args[1..]) catch {
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return error.InvalidOption;
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};
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if (result.args.len < 1) return Error.NotEnoughArguments;
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if (result.args.len > 1) return Error.TooManyArguments;
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// If the noop output is focused, there is nowhere to send the view
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if (seat.focused_output == null) {
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assert(server.root.outputs.len == 0);
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return;
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}
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if (seat.focused == .view) {
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const destination_output = (try getOutput(seat, result.args[0])) orelse return;
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// If the view is already on destination_output, do nothing
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if (seat.focused.view.pending.output == destination_output) return;
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if (result.flags.@"current-tags") {
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seat.focused.view.pending.tags = destination_output.pending.tags;
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}
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seat.focused.view.setPendingOutput(destination_output);
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server.root.applyPending();
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}
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}
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/// Find an output adjacent to the currently focused based on either logical or
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/// spacial direction
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fn getOutput(seat: *Seat, str: []const u8) !?*Output {
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if (std.meta.stringToEnum(Direction, str)) |direction| { // Logical direction
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// Return the next/prev output in the list if there is one, else wrap
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const focused_node = @fieldParentPtr(std.TailQueue(Output).Node, "data", seat.focused_output.?);
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return switch (direction) {
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.next => if (focused_node.next) |node| &node.data else &server.root.outputs.first.?.data,
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.previous => if (focused_node.prev) |node| &node.data else &server.root.outputs.last.?.data,
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};
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} else if (std.meta.stringToEnum(wlr.OutputLayout.Direction, str)) |direction| { // Spacial direction
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var focus_box: wlr.Box = undefined;
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server.root.output_layout.getBox(seat.focused_output.?.wlr_output, &focus_box);
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if (focus_box.empty()) return null;
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const wlr_output = server.root.output_layout.adjacentOutput(
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direction,
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seat.focused_output.?.wlr_output,
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@intToFloat(f64, focus_box.x + @divTrunc(focus_box.width, 2)),
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@intToFloat(f64, focus_box.y + @divTrunc(focus_box.height, 2)),
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) orelse return null;
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return @intToPtr(*Output, wlr_output.data);
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} else {
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// Check if an output matches by name
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var it = server.root.outputs.first;
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while (it) |node| : (it = node.next) {
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if (mem.eql(u8, mem.span(node.data.wlr_output.name), str)) {
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return &node.data;
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}
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}
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return Error.InvalidOutputIndicator;
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}
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}
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