85 lines
2.8 KiB
Zig
85 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, 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 Box = @import("Box.zig");
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const Output = @import("Output.zig");
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const log = std.log.scoped(.server);
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/// The output this popup is displayed on.
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output: *Output,
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/// Box of the parent of this popup tree. Needed to unconstrain child popups.
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parent_box: *const Box,
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/// The corresponding wlroots object
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wlr_xdg_popup: *wlr.XdgPopup,
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destroy: wl.Listener(*wlr.XdgSurface) = wl.Listener(*wlr.XdgSurface).init(handleDestroy),
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new_popup: wl.Listener(*wlr.XdgPopup) = wl.Listener(*wlr.XdgPopup).init(handleNewPopup),
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pub fn init(self: *Self, output: *Output, parent_box: *const Box, wlr_xdg_popup: *wlr.XdgPopup) void {
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self.* = .{
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.output = output,
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.parent_box = parent_box,
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.wlr_xdg_popup = wlr_xdg_popup,
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};
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// The output box relative to the parent of the popup
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const output_dimensions = output.getEffectiveResolution();
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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.new_popup.add(&self.new_popup);
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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.new_popup.link.remove();
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util.gpa.destroy(self);
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}
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/// Called when a new xdg popup is requested by the client
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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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// This will free itself on destroy
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const xdg_popup = util.gpa.create(Self) catch {
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wlr_xdg_popup.resource.postNoMemory();
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log.crit("out of memory", .{});
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return;
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};
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xdg_popup.init(self.output, self.parent_box, wlr_xdg_popup);
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}
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