river/src/server.zig

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2020-03-22 14:42:55 -07:00
const std = @import("std");
const c = @import("c.zig").c;
pub const Server = struct {
wl_display: *c.wl_display,
backend: *c.wlr_backend,
renderer: *c.wlr_renderer,
xdg_shell: *c.wlr_xdg_shell,
new_xdg_surface: c.wl_listener,
views: std.ArrayList(View),
output_layout: *c.wlr_output_layout,
outputs: std.ArrayList(Output),
new_output: c.wl_listener,
pub fn init(allocator: *std.mem.Allocator) !@This() {
var server: @This() = undefined;
// The Wayland display is managed by libwayland. It handles accepting
// clients from the Unix socket, manging Wayland globals, and so on.
server.wl_display = c.wl_display_create() orelse return error.CantCreateWlDisplay;
// The backend is a wlroots feature which abstracts the underlying input and
// output hardware. The autocreate option will choose the most suitable
// backend based on the current environment, such as opening an X11 window
// if an X11 server is running. The NULL argument here optionally allows you
// to pass in a custom renderer if wlr_renderer doesn't meet your needs. The
// backend uses the renderer, for example, to fall back to software cursors
// if the backend does not support hardware cursors (some older GPUs
// don't).
server.backend = c.zag_wlr_backend_autocreate(server.wl_display) orelse return error.CantCreateWlrBackend;
// If we don't provide a renderer, autocreate makes a GLES2 renderer for us.
// The renderer is responsible for defining the various pixel formats it
// supports for shared memory, this configures that for clients.
server.renderer = c.zag_wlr_backend_get_renderer(server.backend) orelse return error.CantGetWlrRenderer;
c.wlr_renderer_init_wl_display(server.renderer, server.wl_display) orelse return error.CantInitWlDisplay;
// This creates some hands-off wlroots interfaces. The compositor is
// necessary for clients to allocate surfaces and the data device manager
// handles the clipboard. Each of these wlroots interfaces has room for you
// to dig your fingers in and play with their behavior if you want.
_ = c.wlr_compositor_create(server.wl_display, server.renderer) orelse return error.CantCreateWlrCompositor;
_ = c.wlr_data_device_manager_create(server.wl_display) orelse return error.CantCreateWlrDataDeviceManager;
}
pub fn handle_keybinding(self: *@This(), sym: c.xkb_keysym_t) bool {
// Here we handle compositor keybindings. This is when the compositor is
// processing keys, rather than passing them on to the client for its own
// processing.
//
// This function assumes the proper modifier is held down.
switch (sym) {
c.XKB_KEY_Escape => c.wl_display_terminate(server.*.wl_display),
c.XKB_KEY_F1 => {
// Cycle to the next view
//if (c.wl_list_length(&server.*.views) > 1) {
// const current_view = @fieldParentPtr(View, "link", server.*.views.next);
// const next_view = @fieldParentPtr(View, "link", current_view.*.link.next);
// focus_view(next_view, next_view.*.xdg_surface.*.surface);
// // Move the previous view to the end of the list
// c.wl_list_remove(&current_view.*.link);
// c.wl_list_insert(server.*.views.prev, &current_view.*.link);
//}
},
else => return false,
}
return true;
}
};