river/river/command/zoom.zig
2020-06-11 01:15:01 +02:00

58 lines
2.0 KiB
Zig

// This file is part of river, a dynamic tiling wayland compositor.
//
// Copyright 2020 Isaac Freund
//
// 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, either version 3 of the License, or
// (at your option) any later version.
//
// 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 std = @import("std");
const c = @import("../c.zig");
const Error = @import("../command.zig").Error;
const Seat = @import("../Seat.zig");
const View = @import("../View.zig");
const ViewStack = @import("../view_stack.zig").ViewStack;
/// Bump the focused view to the top of the stack. If the view on the top of
/// the stack is focused, bump the second view to the top.
pub fn zoom(
allocator: *std.mem.Allocator,
seat: *Seat,
args: []const []const u8,
failure_message: *[]const u8,
) Error!void {
if (args.len > 1) return Error.TooManyArguments;
if (seat.focused_view) |current_focus| {
const output = seat.focused_output;
const focused_node = @fieldParentPtr(ViewStack(View).Node, "view", current_focus);
// Don't zoom floating views
if (current_focus.floating) return;
var it = ViewStack(View).iterator(output.views.first, output.current_focused_tags);
const zoom_node = if (focused_node == it.next())
if (it.next()) |second| second else null
else
focused_node;
if (zoom_node) |to_bump| {
output.views.remove(to_bump);
output.views.push(to_bump);
seat.input_manager.server.root.arrange();
seat.focus(&to_bump.view);
}
}
}