124 lines
4.6 KiB
Zig
124 lines
4.6 KiB
Zig
// This file is part of river, a dynamic tiling wayland compositor.
|
|
//
|
|
// Copyright 2021 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, 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 Subsurface = @This();
|
|
|
|
const std = @import("std");
|
|
const wlr = @import("wlroots");
|
|
const wl = @import("wayland").server.wl;
|
|
|
|
const server = &@import("main.zig").server;
|
|
const util = @import("util.zig");
|
|
|
|
const DragIcon = @import("DragIcon.zig");
|
|
const LayerSurface = @import("LayerSurface.zig");
|
|
const View = @import("View.zig");
|
|
|
|
pub const Parent = union(enum) {
|
|
view: *View,
|
|
layer_surface: *LayerSurface,
|
|
drag_icon: *DragIcon,
|
|
|
|
pub fn damageWholeOutput(parent: Parent) void {
|
|
switch (parent) {
|
|
.view => |view| view.output.damage.addWhole(),
|
|
.layer_surface => |layer_surface| layer_surface.output.damage.addWhole(),
|
|
.drag_icon => |drag_icon| {
|
|
var it = server.root.outputs.first;
|
|
while (it) |node| : (it = node.next) node.data.damage.addWhole();
|
|
},
|
|
}
|
|
}
|
|
};
|
|
|
|
/// The parent at the root of this surface tree
|
|
parent: Parent,
|
|
wlr_subsurface: *wlr.Subsurface,
|
|
|
|
// Always active
|
|
destroy: wl.Listener(*wlr.Subsurface) = wl.Listener(*wlr.Subsurface).init(handleDestroy),
|
|
map: wl.Listener(*wlr.Subsurface) = wl.Listener(*wlr.Subsurface).init(handleMap),
|
|
unmap: wl.Listener(*wlr.Subsurface) = wl.Listener(*wlr.Subsurface).init(handleUnmap),
|
|
new_subsurface: wl.Listener(*wlr.Subsurface) = wl.Listener(*wlr.Subsurface).init(handleNewSubsurface),
|
|
|
|
// Only active while mapped
|
|
commit: wl.Listener(*wlr.Surface) = wl.Listener(*wlr.Surface).init(handleCommit),
|
|
|
|
pub fn create(wlr_subsurface: *wlr.Subsurface, parent: Parent) void {
|
|
const subsurface = util.gpa.create(Subsurface) catch {
|
|
std.log.crit("out of memory", .{});
|
|
wlr_subsurface.resource.getClient().postNoMemory();
|
|
return;
|
|
};
|
|
subsurface.* = .{ .wlr_subsurface = wlr_subsurface, .parent = parent };
|
|
|
|
wlr_subsurface.events.destroy.add(&subsurface.destroy);
|
|
wlr_subsurface.events.map.add(&subsurface.map);
|
|
wlr_subsurface.events.unmap.add(&subsurface.unmap);
|
|
wlr_subsurface.surface.events.new_subsurface.add(&subsurface.new_subsurface);
|
|
|
|
Subsurface.handleExisting(wlr_subsurface.surface, parent);
|
|
}
|
|
|
|
/// Create Subsurface structs to track subsurfaces already present on the
|
|
/// given surface when river becomes aware of the surface as we won't
|
|
/// recieve a new_subsurface event for them.
|
|
pub fn handleExisting(surface: *wlr.Surface, parent: Parent) void {
|
|
var below_it = surface.subsurfaces_below.iterator(.forward);
|
|
while (below_it.next()) |s| Subsurface.create(s, parent);
|
|
|
|
var above_it = surface.subsurfaces_above.iterator(.forward);
|
|
while (above_it.next()) |s| Subsurface.create(s, parent);
|
|
}
|
|
|
|
fn handleDestroy(listener: *wl.Listener(*wlr.Subsurface), wlr_subsurface: *wlr.Subsurface) void {
|
|
const subsurface = @fieldParentPtr(Subsurface, "destroy", listener);
|
|
|
|
subsurface.destroy.link.remove();
|
|
subsurface.map.link.remove();
|
|
subsurface.unmap.link.remove();
|
|
subsurface.new_subsurface.link.remove();
|
|
|
|
util.gpa.destroy(subsurface);
|
|
}
|
|
|
|
fn handleMap(listener: *wl.Listener(*wlr.Subsurface), wlr_subsurface: *wlr.Subsurface) void {
|
|
const subsurface = @fieldParentPtr(Subsurface, "map", listener);
|
|
|
|
wlr_subsurface.surface.events.commit.add(&subsurface.commit);
|
|
subsurface.parent.damageWholeOutput();
|
|
}
|
|
|
|
fn handleUnmap(listener: *wl.Listener(*wlr.Subsurface), wlr_subsurface: *wlr.Subsurface) void {
|
|
const subsurface = @fieldParentPtr(Subsurface, "unmap", listener);
|
|
|
|
subsurface.commit.link.remove();
|
|
subsurface.parent.damageWholeOutput();
|
|
}
|
|
|
|
fn handleCommit(listener: *wl.Listener(*wlr.Surface), surface: *wlr.Surface) void {
|
|
const subsurface = @fieldParentPtr(Subsurface, "commit", listener);
|
|
|
|
subsurface.parent.damageWholeOutput();
|
|
}
|
|
|
|
fn handleNewSubsurface(listener: *wl.Listener(*wlr.Subsurface), new_wlr_subsurface: *wlr.Subsurface) void {
|
|
const subsurface = @fieldParentPtr(Subsurface, "new_subsurface", listener);
|
|
|
|
Subsurface.create(new_wlr_subsurface, subsurface.parent);
|
|
}
|