126 lines
4.5 KiB
Zig
126 lines
4.5 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, either version 3 of the License, or
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// (at your option) any later version.
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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 Self = @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 util = @import("util.zig");
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const Subsurface = @import("Subsurface.zig");
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const Parent = Subsurface.Parent;
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/// The parent at the root of this surface tree
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parent: Parent,
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wlr_xdg_popup: *wlr.XdgPopup,
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// Always active
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destroy: wl.Listener(*wlr.XdgSurface) = wl.Listener(*wlr.XdgSurface).init(handleDestroy),
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map: wl.Listener(*wlr.XdgSurface) = wl.Listener(*wlr.XdgSurface).init(handleMap),
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unmap: wl.Listener(*wlr.XdgSurface) = wl.Listener(*wlr.XdgSurface).init(handleUnmap),
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new_popup: wl.Listener(*wlr.XdgPopup) = wl.Listener(*wlr.XdgPopup).init(handleNewPopup),
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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 create(wlr_xdg_popup: *wlr.XdgPopup, parent: Parent) void {
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const self = util.gpa.create(Self) catch {
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std.log.crit("out of memory", .{});
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wlr_xdg_popup.resource.postNoMemory();
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return;
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};
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self.* = .{
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.parent = parent,
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.wlr_xdg_popup = wlr_xdg_popup,
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};
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const parent_box = switch (parent) {
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.view => |view| &view.pending.box,
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.layer_surface => |layer_surface| &layer_surface.box,
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.drag_icon => unreachable,
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};
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const output_dimensions = switch (parent) {
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.view => |view| view.output.getEffectiveResolution(),
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.layer_surface => |layer_surface| layer_surface.output.getEffectiveResolution(),
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.drag_icon => unreachable,
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};
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// The output box relative to the parent of the popup
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var box = wlr.Box{
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.x = -parent_box.x,
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.y = -parent_box.y,
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.width = @intCast(c_int, output_dimensions.width),
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.height = @intCast(c_int, output_dimensions.height),
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};
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wlr_xdg_popup.unconstrainFromBox(&box);
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wlr_xdg_popup.base.events.destroy.add(&self.destroy);
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wlr_xdg_popup.base.events.map.add(&self.map);
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wlr_xdg_popup.base.events.unmap.add(&self.unmap);
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wlr_xdg_popup.base.events.new_popup.add(&self.new_popup);
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wlr_xdg_popup.base.surface.events.new_subsurface.add(&self.new_subsurface);
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Subsurface.handleExisting(wlr_xdg_popup.base.surface, parent);
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}
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fn handleDestroy(listener: *wl.Listener(*wlr.XdgSurface), wlr_xdg_surface: *wlr.XdgSurface) void {
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const self = @fieldParentPtr(Self, "destroy", listener);
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self.destroy.link.remove();
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self.map.link.remove();
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self.unmap.link.remove();
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self.new_popup.link.remove();
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self.new_subsurface.link.remove();
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util.gpa.destroy(self);
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}
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fn handleMap(listener: *wl.Listener(*wlr.XdgSurface), xdg_surface: *wlr.XdgSurface) void {
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const self = @fieldParentPtr(Self, "map", listener);
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self.wlr_xdg_popup.base.surface.events.commit.add(&self.commit);
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self.parent.damageWholeOutput();
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}
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fn handleUnmap(listener: *wl.Listener(*wlr.XdgSurface), xdg_surface: *wlr.XdgSurface) void {
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const self = @fieldParentPtr(Self, "unmap", listener);
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self.commit.link.remove();
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self.parent.damageWholeOutput();
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}
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fn handleCommit(listener: *wl.Listener(*wlr.Surface), surface: *wlr.Surface) void {
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const self = @fieldParentPtr(Self, "commit", listener);
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self.parent.damageWholeOutput();
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}
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fn handleNewPopup(listener: *wl.Listener(*wlr.XdgPopup), wlr_xdg_popup: *wlr.XdgPopup) void {
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const self = @fieldParentPtr(Self, "new_popup", listener);
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Self.create(wlr_xdg_popup, self.parent);
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}
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fn handleNewSubsurface(listener: *wl.Listener(*wlr.Subsurface), new_wlr_subsurface: *wlr.Subsurface) void {
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const self = @fieldParentPtr(Self, "new_subsurface", listener);
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Subsurface.create(new_wlr_subsurface, self.parent);
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}
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