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const std = @import("std");
const c = @import("c.zig").c;
fn xdg_surface_map(listener: [*c]c.wl_listener, data: ?*c_void) callconv(.C) void {
// Called when the surface is mapped, or ready to display on-screen.
var view = @fieldParentPtr(View, "map", listener);
view.*.mapped = true;
focus_view(view, view.*.xdg_surface.*.surface);
}
fn xdg_surface_unmap(listener: [*c]c.wl_listener, data: ?*c_void) callconv(.C) void {
var view = @fieldParentPtr(View, "unmap", listener);
view.*.mapped = false;
}
fn xdg_surface_destroy(listener: [*c]c.wl_listener, data: ?*c_void) callconv(.C) void {
var view = @fieldParentPtr(View, "destroy", listener);
var server = view.*.server;
const idx = for (server.*.views.span()) |*v, i| {
if (v == view) {
break i;
}
} else return;
_ = server.*.views.orderedRemove(idx);
}
fn xdg_toplevel_request_move(listener: [*c]c.wl_listener, data: ?*c_void) callconv(.C) void {
// ignore for now
}
fn xdg_toplevel_request_resize(listener: [*c]c.wl_listener, data: ?*c_void) callconv(.C) void {
// ignore for now
}
fn server_new_xdg_surface(listener: [*c]c.wl_listener, data: ?*c_void) callconv(.C) void {
// This event is raised when wlr_xdg_shell receives a new xdg surface from a
// client, either a toplevel (application window) or popup.
var server = @fieldParentPtr(Server, "new_xdg_surface", listener);
var xdg_surface = @ptrCast(*c.wlr_xdg_surface, @alignCast(@alignOf(*c.wlr_xdg_surface), data));
if (xdg_surface.*.role != c.enum_wlr_xdg_surface_role.WLR_XDG_SURFACE_ROLE_TOPLEVEL) {
return;
}
// Allocate a View for this surface
server.*.views.append(undefined) catch unreachable;
var view = &server.*.views.span()[server.*.views.span().len - 1];
view.*.server = server;
view.*.xdg_surface = xdg_surface;
// Listen to the various events it can emit
view.*.map.notify = xdg_surface_map;
c.wl_signal_add(&xdg_surface.*.events.map, &view.*.map);
view.*.unmap.notify = xdg_surface_unmap;
c.wl_signal_add(&xdg_surface.*.events.unmap, &view.*.unmap);
view.*.destroy.notify = xdg_surface_destroy;
c.wl_signal_add(&xdg_surface.*.events.destroy, &view.*.destroy);
var toplevel = xdg_surface.*.unnamed_160.toplevel;
view.*.request_move.notify = xdg_toplevel_request_move;
c.wl_signal_add(&toplevel.*.events.request_move, &view.*.request_move);
view.*.request_resize.notify = xdg_toplevel_request_resize;
c.wl_signal_add(&toplevel.*.events.request_resize, &view.*.request_resize);
}
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