96 lines
3.6 KiB
Zig
96 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 2020-2021 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 DragIcon = @This();
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const std = @import("std");
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const wlr = @import("wlroots");
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const wl = @import("wayland").server.wl;
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const server = &@import("main.zig").server;
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const util = @import("util.zig");
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const Seat = @import("Seat.zig");
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const Subsurface = @import("Subsurface.zig");
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seat: *Seat,
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wlr_drag_icon: *wlr.Drag.Icon,
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// Always active
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destroy: wl.Listener(*wlr.Drag.Icon) = wl.Listener(*wlr.Drag.Icon).init(handleDestroy),
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map: wl.Listener(*wlr.Drag.Icon) = wl.Listener(*wlr.Drag.Icon).init(handleMap),
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unmap: wl.Listener(*wlr.Drag.Icon) = wl.Listener(*wlr.Drag.Icon).init(handleUnmap),
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new_subsurface: wl.Listener(*wlr.Subsurface) = wl.Listener(*wlr.Subsurface).init(handleNewSubsurface),
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// Only active while mapped
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commit: wl.Listener(*wlr.Surface) = wl.Listener(*wlr.Surface).init(handleCommit),
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pub fn init(drag_icon: *DragIcon, seat: *Seat, wlr_drag_icon: *wlr.Drag.Icon) void {
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drag_icon.* = .{ .seat = seat, .wlr_drag_icon = wlr_drag_icon };
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wlr_drag_icon.events.destroy.add(&drag_icon.destroy);
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wlr_drag_icon.events.map.add(&drag_icon.map);
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wlr_drag_icon.events.unmap.add(&drag_icon.unmap);
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wlr_drag_icon.surface.events.new_subsurface.add(&drag_icon.new_subsurface);
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if (wlr_drag_icon.mapped) handleMap(&drag_icon.map, wlr_drag_icon);
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Subsurface.handleExisting(wlr_drag_icon.surface, .{ .drag_icon = drag_icon });
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}
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fn handleDestroy(listener: *wl.Listener(*wlr.Drag.Icon), wlr_drag_icon: *wlr.Drag.Icon) void {
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const drag_icon = @fieldParentPtr(DragIcon, "destroy", listener);
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const node = @fieldParentPtr(std.SinglyLinkedList(DragIcon).Node, "data", drag_icon);
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server.root.drag_icons.remove(node);
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drag_icon.destroy.link.remove();
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drag_icon.map.link.remove();
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drag_icon.unmap.link.remove();
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drag_icon.new_subsurface.link.remove();
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Subsurface.destroySubsurfaces(wlr_drag_icon.surface);
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util.gpa.destroy(node);
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}
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fn handleMap(listener: *wl.Listener(*wlr.Drag.Icon), wlr_drag_icon: *wlr.Drag.Icon) void {
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const drag_icon = @fieldParentPtr(DragIcon, "map", listener);
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wlr_drag_icon.surface.events.commit.add(&drag_icon.commit);
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var it = server.root.outputs.first;
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while (it) |node| : (it = node.next) node.data.damage.?.addWhole();
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}
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fn handleUnmap(listener: *wl.Listener(*wlr.Drag.Icon), _: *wlr.Drag.Icon) void {
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const drag_icon = @fieldParentPtr(DragIcon, "unmap", listener);
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drag_icon.commit.link.remove();
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var it = server.root.outputs.first;
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while (it) |node| : (it = node.next) node.data.damage.?.addWhole();
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}
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fn handleCommit(_: *wl.Listener(*wlr.Surface), _: *wlr.Surface) void {
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var it = server.root.outputs.first;
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while (it) |node| : (it = node.next) node.data.damage.?.addWhole();
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}
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fn handleNewSubsurface(listener: *wl.Listener(*wlr.Subsurface), wlr_subsurface: *wlr.Subsurface) void {
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const drag_icon = @fieldParentPtr(DragIcon, "new_subsurface", listener);
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Subsurface.create(wlr_subsurface, .{ .drag_icon = drag_icon });
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}
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