74 lines
2.7 KiB
Zig
74 lines
2.7 KiB
Zig
// This file is part of river, a dynamic tiling wayland compositor.
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//
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// Copyright 2020 Isaac Freund
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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 c = @import("c.zig");
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const XdgToplevel = @import("xdg_toplevel.zig");
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/// The toplevel this popup is a child of
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xdg_toplevel: *XdgToplevel,
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/// The corresponding wlroots object
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wlr_xdg_popup: *c.wlr_xdg_popup,
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listen_destroy: c.wl_listener,
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listen_new_popup: c.wl_listener,
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pub fn init(self: *Self, xdg_toplevel: *XdgToplevel, wlr_xdg_popup: *c.wlr_xdg_popup) void {
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self.xdg_toplevel = xdg_toplevel;
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self.wlr_xdg_popup = wlr_xdg_popup;
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// The output box relative to the toplevel parent of the popup
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const output = xdg_toplevel.view.output;
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var box = c.wlr_output_layout_get_box(output.root.wlr_output_layout, output.wlr_output).*;
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box.x -= xdg_toplevel.view.current_box.x;
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box.y -= xdg_toplevel.view.current_box.y;
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c.wlr_xdg_popup_unconstrain_from_box(wlr_xdg_popup, &box);
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// Setup listeners
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self.listen_destroy.notify = handleDestroy;
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c.wl_signal_add(&wlr_xdg_popup.base.*.events.destroy, &self.listen_destroy);
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self.listen_new_popup.notify = handleNewPopup;
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c.wl_signal_add(&wlr_xdg_popup.base.*.events.new_popup, &self.listen_new_popup);
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}
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fn handleDestroy(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
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const self = @fieldParentPtr(Self, "listen_destroy", listener.?);
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const server = self.xdg_toplevel.view.output.root.server;
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c.wl_list_remove(&self.listen_destroy.link);
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c.wl_list_remove(&self.listen_new_popup.link);
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server.allocator.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: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
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const self = @fieldParentPtr(Self, "listen_new_popup", listener.?);
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const wlr_xdg_popup = @ptrCast(*c.wlr_xdg_popup, @alignCast(@alignOf(*c.wlr_xdg_popup), data));
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const server = self.xdg_toplevel.view.output.root.server;
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// This will free itself on destroy
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var xdg_popup = server.allocator.create(Self) catch unreachable;
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xdg_popup.init(self.xdg_toplevel, wlr_xdg_popup);
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}
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