82 lines
2.8 KiB
Zig
82 lines
2.8 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, 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 server = &@import("../main.zig").server;
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const Error = @import("../command.zig").Error;
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const Seat = @import("../Seat.zig");
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const View = @import("../View.zig");
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/// Bump the focused view to the top of the stack. If the view on the top of
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/// the stack is focused, bump the second view to the top.
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pub fn zoom(
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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 > 1) return Error.TooManyArguments;
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if (seat.focused != .view) return;
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if (seat.focused.view.pending.float or seat.focused.view.pending.fullscreen) return;
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const output = seat.focused_output orelse return;
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const layout_first = blk: {
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var it = output.pending.wm_stack.iterator(.forward);
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while (it.next()) |view| {
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if (view.pending.tags & output.pending.tags != 0 and !view.pending.float) break :blk view;
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} else {
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// If we are focusing a view that is not fullscreen or floating
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// it must be visible and in the layout.
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unreachable;
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}
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};
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// If the first view that is part of the layout is focused, zoom
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// the next view in the layout if any. Otherwise zoom the focused view.
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const zoom_target = blk: {
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if (seat.focused.view == layout_first) {
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var it = output.pending.wm_stack.iterator(.forward);
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while (it.next()) |view| {
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if (view == seat.focused.view) break;
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} else {
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unreachable;
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}
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while (it.next()) |view| {
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if (view.pending.tags & output.pending.tags != 0 and !view.pending.float) break :blk view;
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} else {
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break :blk null;
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}
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} else {
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break :blk seat.focused.view;
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}
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};
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if (zoom_target) |target| {
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assert(!target.pending.float);
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assert(!target.pending.fullscreen);
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target.pending_wm_stack_link.remove();
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output.pending.wm_stack.prepend(target);
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seat.focus(target);
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server.root.applyPending();
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}
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}
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