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refactor code to multiple modules

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This commit is contained in:
DanyLE 2024-03-30 00:18:51 +01:00
parent 48543efbbd
commit c1960f0438
17 changed files with 1899 additions and 828 deletions
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4
.gitignore vendored
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@ -140,4 +140,6 @@ m4/lt~obsolete.m4
# (which is called by configure script)) # (which is called by configure script))
# Makefile # Makefile
xdg-shell-protocol.* xdg-shell-protocol.*
diyac diyac
.vscode
wlr-layer-shell-unstable-v1-protocol*

17
Makefile
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@ -5,6 +5,14 @@ LIBS=\
$(shell pkg-config --cflags --libs wayland-server) \ $(shell pkg-config --cflags --libs wayland-server) \
$(shell pkg-config --cflags --libs xkbcommon) $(shell pkg-config --cflags --libs xkbcommon)
OBJS=\
diyac.c \
cursor.c \
output.c \
seat.c \
xdg.c \
xdg-shell-protocol.c
# wayland-scanner is a tool which generates C headers and rigging for Wayland # wayland-scanner is a tool which generates C headers and rigging for Wayland
# protocols, which are specified in XML. wlroots requires you to rig these up # protocols, which are specified in XML. wlroots requires you to rig these up
# to your build system yourself and provide them in the include path. # to your build system yourself and provide them in the include path.
@ -16,11 +24,16 @@ xdg-shell-protocol.c: xdg-shell-protocol.h
$(WAYLAND_SCANNER) private-code \ $(WAYLAND_SCANNER) private-code \
$(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@ $(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@
diyac: diyac.c xdg-shell-protocol.h xdg-shell-protocol.c wlr-layer-shell-unstable-v1-protocol.h:
$(WAYLAND_SCANNER) server-header \
protocol/wlr-layer-shell-unstable-v1.xml $@
diyac: $(OBJS)
echo "Object is $(OBJS)"
$(CC) $(CFLAGS) \ $(CC) $(CFLAGS) \
-g -Werror -I. \ -g -Werror -I. \
-DWLR_USE_UNSTABLE \ -DWLR_USE_UNSTABLE \
-o $@ $< \ -o $@ $(OBJS) \
$(LIBS) $(LIBS)
clean: clean:

259
cursor.c Normal file
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#define _POSIX_C_SOURCE 200112L
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/types/wlr_scene.h>
#include "cursor.h"
void diyac_reset_cursor_mode(struct diyac_server *server)
{
/* Reset the cursor mode to passthrough. */
server->seat.cursor_mode = DIYAC_CURSOR_PASSTHROUGH;
server->grabbed_toplevel = NULL;
}
static void process_cursor_move(struct diyac_server *server, uint32_t time)
{
/* Move the grabbed toplevel to the new position. */
struct diyac_toplevel *toplevel = server->grabbed_toplevel;
wlr_scene_node_set_position(&toplevel->scene_tree->node,
server->seat.cursor->x - server->grab_x,
server->seat.cursor->y - server->grab_y);
}
static void process_cursor_resize(struct diyac_server *server, uint32_t time)
{
/*
* Resizing the grabbed toplevel can be a little bit complicated, because we
* could be resizing from any corner or edge. This not only resizes the
* toplevel on one or two axes, but can also move the toplevel if you resize
* from the top or left edges (or top-left corner).
*
* Note that some shortcuts are taken here. In a more fleshed-out
* compositor, you'd wait for the client to prepare a buffer at the new
* size, then commit any movement that was prepared.
*/
struct diyac_toplevel *toplevel = server->grabbed_toplevel;
double border_x = server->seat.cursor->x - server->grab_x;
double border_y = server->seat.cursor->y - server->grab_y;
int new_left = server->grab_geobox.x;
int new_right = server->grab_geobox.x + server->grab_geobox.width;
int new_top = server->grab_geobox.y;
int new_bottom = server->grab_geobox.y + server->grab_geobox.height;
if (server->resize_edges & WLR_EDGE_TOP)
{
new_top = border_y;
if (new_top >= new_bottom)
{
new_top = new_bottom - 1;
}
}
else if (server->resize_edges & WLR_EDGE_BOTTOM)
{
new_bottom = border_y;
if (new_bottom <= new_top)
{
new_bottom = new_top + 1;
}
}
if (server->resize_edges & WLR_EDGE_LEFT)
{
new_left = border_x;
if (new_left >= new_right)
{
new_left = new_right - 1;
}
}
else if (server->resize_edges & WLR_EDGE_RIGHT)
{
new_right = border_x;
if (new_right <= new_left)
{
new_right = new_left + 1;
}
}
struct wlr_box geo_box;
wlr_xdg_surface_get_geometry(toplevel->xdg_toplevel->base, &geo_box);
wlr_scene_node_set_position(&toplevel->scene_tree->node,
new_left - geo_box.x, new_top - geo_box.y);
int new_width = new_right - new_left;
int new_height = new_bottom - new_top;
wlr_xdg_toplevel_set_size(toplevel->xdg_toplevel, new_width, new_height);
}
static void process_cursor_motion(struct diyac_server *server, uint32_t time)
{
/* If the mode is non-passthrough, delegate to those functions. */
if (server->seat.cursor_mode == DIYAC_CURSOR_MOVE)
{
process_cursor_move(server, time);
return;
}
else if (server->seat.cursor_mode == DIYAC_CURSOR_RESIZE)
{
process_cursor_resize(server, time);
return;
}
/* Otherwise, find the toplevel under the pointer and send the event along. */
double sx, sy;
struct wlr_seat *seat = server->seat.wlr_seat;
struct wlr_surface *surface = NULL;
struct diyac_toplevel *toplevel = diyac_toplevel_at(server,
server->seat.cursor->x, server->seat.cursor->y, &surface, &sx, &sy);
if (!toplevel)
{
/* If there's no toplevel under the cursor, set the cursor image to a
* default. This is what makes the cursor image appear when you move it
* around the screen, not over any toplevels. */
wlr_cursor_set_xcursor(server->seat.cursor, server->seat.cursor_mgr, "default");
}
if (surface)
{
/*
* Send pointer enter and motion events.
*
* The enter event gives the surface "pointer focus", which is distinct
* from keyboard focus. You get pointer focus by moving the pointer over
* a window.
*
* Note that wlroots will avoid sending duplicate enter/motion events if
* the surface has already has pointer focus or if the client is already
* aware of the coordinates passed.
*/
wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
wlr_seat_pointer_notify_motion(seat, time, sx, sy);
}
else
{
/* Clear pointer focus so future button events and such are not sent to
* the last client to have the cursor over it. */
wlr_seat_pointer_clear_focus(seat);
}
}
static void server_cursor_motion(struct wl_listener *listener, void *data)
{
/* This event is forwarded by the cursor when a pointer emits a _relative_
* pointer motion event (i.e. a delta) */
struct diyac_seat *seat =
wl_container_of(listener, seat, cursor_motion);
struct wlr_pointer_motion_event *event = data;
/* The cursor doesn't move unless we tell it to. The cursor automatically
* handles constraining the motion to the output layout, as well as any
* special configuration applied for the specific input device which
* generated the event. You can pass NULL for the device if you want to move
* the cursor around without any input. */
wlr_cursor_move(seat->cursor, &event->pointer->base,
event->delta_x, event->delta_y);
process_cursor_motion(seat->server, event->time_msec);
}
static void server_cursor_motion_absolute(
struct wl_listener *listener, void *data)
{
/* This event is forwarded by the cursor when a pointer emits an _absolute_
* motion event, from 0..1 on each axis. This happens, for example, when
* wlroots is running under a Wayland window rather than KMS+DRM, and you
* move the mouse over the window. You could enter the window from any edge,
* so we have to warp the mouse there. There is also some hardware which
* emits these events. */
struct diyac_seat *seat =
wl_container_of(listener, seat, cursor_motion_absolute);
struct wlr_pointer_motion_absolute_event *event = data;
wlr_cursor_warp_absolute(seat->cursor, &event->pointer->base, event->x,
event->y);
process_cursor_motion(seat->server, event->time_msec);
}
static void server_cursor_button(struct wl_listener *listener, void *data)
{
/* This event is forwarded by the cursor when a pointer emits a button
* event. */
struct diyac_seat *seat =
wl_container_of(listener, seat, cursor_button);
struct wlr_pointer_button_event *event = data;
/* Notify the client with pointer focus that a button press has occurred */
wlr_seat_pointer_notify_button(seat->wlr_seat,
event->time_msec, event->button, event->state);
double sx, sy;
struct wlr_surface *surface = NULL;
struct diyac_toplevel *toplevel = diyac_toplevel_at(seat->server,
seat->cursor->x, seat->cursor->y, &surface, &sx, &sy);
if (event->state == WLR_BUTTON_RELEASED)
{
/* If you released any buttons, we exit interactive move/resize mode. */
diyac_reset_cursor_mode(seat->server);
}
else
{
/* Focus that client if the button was _pressed_ */
diyac_focus_toplevel(toplevel, surface);
}
}
static void server_cursor_axis(struct wl_listener *listener, void *data)
{
/* This event is forwarded by the cursor when a pointer emits an axis event,
* for example when you move the scroll wheel. */
struct diyac_seat *seat =
wl_container_of(listener, seat, cursor_axis);
struct wlr_pointer_axis_event *event = data;
/* Notify the client with pointer focus of the axis event. */
wlr_seat_pointer_notify_axis(seat->wlr_seat,
event->time_msec, event->orientation, event->delta,
event->delta_discrete, event->source);
}
static void server_cursor_frame(struct wl_listener *listener, void *data)
{
/* This event is forwarded by the cursor when a pointer emits an frame
* event. Frame events are sent after regular pointer events to group
* multiple events together. For instance, two axis events may happen at the
* same time, in which case a frame event won't be sent in between. */
struct diyac_seat *seat =
wl_container_of(listener, seat, cursor_frame);
/* Notify the client with pointer focus of the frame event. */
wlr_seat_pointer_notify_frame(seat->wlr_seat);
}
void diyac_init_cursor_manager(struct diyac_server *server)
{
/*
* Creates a cursor, which is a wlroots utility for tracking the cursor
* image shown on screen.
*/
server->seat.cursor = wlr_cursor_create();
wlr_cursor_attach_output_layout(server->seat.cursor, server->output_layout);
/* Creates an xcursor manager, another wlroots utility which loads up
* Xcursor themes to source cursor images from and makes sure that cursor
* images are available at all scale factors on the screen (necessary for
* HiDPI support). */
server->seat.cursor_mgr = wlr_xcursor_manager_create(NULL, 24);
/*
* wlr_cursor *only* displays an image on screen. It does not move around
* when the pointer moves. However, we can attach input devices to it, and
* it will generate aggregate events for all of them. In these events, we
* can choose how we want to process them, forwarding them to clients and
* moving the cursor around. More detail on this process is described in
* https://drewdevault.com/2018/07/17/Input-handling-in-wlroots.html.
*
* And more comments are sprinkled throughout the notify functions above.
*/
server->seat.cursor_mode = DIYAC_CURSOR_PASSTHROUGH;
server->seat.cursor_motion.notify = server_cursor_motion;
wl_signal_add(&server->seat.cursor->events.motion, &server->seat.cursor_motion);
server->seat.cursor_motion_absolute.notify = server_cursor_motion_absolute;
wl_signal_add(&server->seat.cursor->events.motion_absolute,
&server->seat.cursor_motion_absolute);
server->seat.cursor_button.notify = server_cursor_button;
wl_signal_add(&server->seat.cursor->events.button, &server->seat.cursor_button);
server->seat.cursor_axis.notify = server_cursor_axis;
wl_signal_add(&server->seat.cursor->events.axis, &server->seat.cursor_axis);
server->seat.cursor_frame.notify = server_cursor_frame;
wl_signal_add(&server->seat.cursor->events.frame, &server->seat.cursor_frame);
}

8
cursor.h Normal file
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@ -0,0 +1,8 @@
#ifndef DIYAC_CURSOR_H
#define DIYAC_CURSOR_H
#include "diyac.h"
void diyac_init_cursor_manager(struct diyac_server * server);
void diyac_reset_cursor_mode(struct diyac_server *server);
#endif

904
diyac.c
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119
diyac.h Normal file
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@ -0,0 +1,119 @@
#ifndef DIYAC_H
#define DIYAC_H
#include <wayland-server-core.h>
#include <wlr/backend.h>
#include <wlr/types/wlr_xdg_shell.h>
#include <wlr/types/wlr_layer_shell_v1.h>
/* For brevity's sake, struct members are annotated where they are used. */
enum diyac_cursor_mode
{
DIYAC_CURSOR_PASSTHROUGH,
DIYAC_CURSOR_MOVE,
DIYAC_CURSOR_RESIZE,
};
struct diyac_seat {
struct wlr_seat* wlr_seat;
struct diyac_server *server;
struct wlr_cursor *cursor;
enum diyac_cursor_mode cursor_mode;
struct wlr_xcursor_manager *cursor_mgr;
struct wl_listener cursor_motion;
struct wl_listener cursor_motion_absolute;
struct wl_listener cursor_button;
struct wl_listener cursor_axis;
struct wl_listener cursor_frame;
struct wl_listener new_input;
struct wl_listener request_cursor;
struct wl_listener request_set_selection;
struct wl_list keyboards;
};
struct diyac_server
{
struct wl_display *wl_display;
struct wlr_backend *backend;
struct wlr_renderer *renderer;
struct wlr_allocator *allocator;
struct wlr_scene *scene;
struct wlr_scene_output_layout *scene_layout;
struct wlr_xdg_shell *xdg_shell;
struct wlr_layer_shell_v1 *layer_shell;
struct wl_listener new_xdg_surface;
struct wl_listener new_layer_surface;
struct wl_list toplevels;
struct diyac_seat seat;
struct diyac_toplevel *grabbed_toplevel;
double grab_x, grab_y;
struct wlr_box grab_geobox;
uint32_t resize_edges;
struct wlr_output_layout *output_layout;
struct wl_list outputs;
struct wl_listener new_output;
};
struct diyac_layer_surface
{
struct wlr_scene_layer_surface_v1 *scene_layer_surface;
struct diyac_server *server;
bool mapped;
struct wl_listener map;
struct wl_listener unmap;
struct wl_listener surface_commit;
struct wl_listener output_destroy;
struct wl_listener node_destroy;
struct wl_listener new_popup;
};
struct diyac_output
{
struct wl_list link;
struct diyac_server *server;
struct wlr_output *wlr_output;
struct wl_listener frame;
struct wl_listener request_state;
struct wl_listener destroy;
// layer output
struct wlr_scene_tree *layer_tree[4];
};
struct diyac_toplevel
{
struct wl_list link;
struct diyac_server *server;
struct wlr_xdg_toplevel *xdg_toplevel;
struct wlr_scene_tree *scene_tree;
struct wlr_output *output;
struct wl_listener map;
struct wl_listener unmap;
struct wl_listener destroy;
struct wl_listener request_move;
struct wl_listener request_resize;
struct wl_listener request_maximize;
struct wl_listener request_fullscreen;
};
struct diyac_keyboard
{
struct wl_list link;
struct diyac_server *server;
struct wlr_keyboard *wlr_keyboard;
struct wl_listener modifiers;
struct wl_listener key;
struct wl_listener destroy;
};
void diyac_focus_toplevel(struct diyac_toplevel *toplevel, struct wlr_surface *surface);
struct diyac_toplevel *diyac_toplevel_at(
struct diyac_server *server, double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy);
#endif

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static void layer_surface_commit(struct wl_listener *listener, void *data)
{
struct diyac_layer_surface *layer =
wl_container_of(listener, layer, surface_commit);
struct wlr_layer_surface_v1 *layer_surface =
layer->scene_layer_surface->layer_surface;
struct wlr_output *wlr_output =
layer->scene_layer_surface->layer_surface->output;
if (!wlr_output) {
return;
}
uint32_t committed = layer_surface->current.committed;
struct diyac_output *output = (struct diyac_output *)wlr_output->data;
/* Process layer change */
if (committed & WLR_LAYER_SURFACE_V1_STATE_LAYER) {
wlr_scene_node_reparent(&layer->scene_layer_surface->tree->node,
output->layer_tree[layer_surface->current.layer]);
}
/* Process keyboard-interactivity change */
if (committed & WLR_LAYER_SURFACE_V1_STATE_KEYBOARD_INTERACTIVITY) {
//process_keyboard_interactivity(layer);
}
if (committed || layer->mapped != layer_surface->surface->mapped) {
layer->mapped = layer_surface->surface->mapped;
//output_update_usable_area(output);
/*
* Update cursor focus here to ensure we
* enter a new/moved/resized layer surface.
*/
//cursor_update_focus(layer->server);
}
}
static void
layer_surface_unmap(struct wl_listener *listener, void *data)
{
struct diyac_layer_surface *layer = wl_container_of(listener, layer, unmap);
struct wlr_layer_surface_v1 *layer_surface =
layer->scene_layer_surface->layer_surface;
if (layer_surface->output) {
//output_update_usable_area(layer_surface->output->data);
}
struct wlr_seat *seat = layer->server->seat;
//if (seat->focused_layer == layer_surface) {
//seat_set_focus_layer(seat, NULL);
//}
}
static void layer_surface_map(struct wl_listener *listener, void *data)
{
struct diyac_layer_surface *layer = wl_container_of(listener, layer, map);
struct wlr_output *wlr_output =
layer->scene_layer_surface->layer_surface->output;
if (wlr_output) {
//output_update_usable_area(wlr_output->data);
}
/*
* Since moving to the wlroots scene-graph API, there is no need to
* call wlr_surface_send_enter() from here since that will be done
* automatically based on the position of the surface and outputs in
* the scene. See wlr_scene_surface_create() documentation.
*/
//process_keyboard_interactivity(layer);
}
static void
layer_surface_node_destroy(struct wl_listener *listener, void *data)
{
struct diyac_layer_surface *layer =
wl_container_of(listener, layer, node_destroy);
/*
* TODO: Determine if this layer is being used by an exclusive client.
* If it is, try and find another layer owned by this client to pass
* focus to.
*/
wl_list_remove(&layer->map.link);
wl_list_remove(&layer->unmap.link);
wl_list_remove(&layer->surface_commit.link);
wl_list_remove(&layer->new_popup.link);
wl_list_remove(&layer->output_destroy.link);
wl_list_remove(&layer->node_destroy.link);
free(layer);
}
static void
layer_surface_output_destroy(struct wl_listener *listener, void *data)
{
struct diyac_layer_surface *layer =
wl_container_of(listener, layer, output_destroy);
layer->scene_layer_surface->layer_surface->output = NULL;
wlr_layer_surface_v1_destroy(layer->scene_layer_surface->layer_surface);
}
/* This popup's parent is a layer popup */
static void
layer_surface_new_popup(struct wl_listener *listener, void *data)
{
/*struct lab_layer_popup *lab_layer_popup =
wl_container_of(listener, lab_layer_popup, new_popup);
struct wlr_xdg_popup *wlr_popup = data;
struct lab_layer_popup *new_popup = create_popup(wlr_popup,
lab_layer_popup->scene_tree);
new_popup->output_toplevel_sx_box =
lab_layer_popup->output_toplevel_sx_box;*/
}
static void server_new_layer_surface(struct wl_listener *listener, void *data)
{
struct diyac_server *server = wl_container_of(listener, server, new_layer_surface);
struct wlr_layer_surface_v1 *layer_surface = data;
if (!layer_surface->output) {
struct wlr_output *output = wlr_output_layout_output_at(
server->output_layout, server->seat.cursor->x,
server->seat.cursor->y);
if (!output) {
wlr_log(WLR_INFO,
"No output available to assign layer surface");
wlr_layer_surface_v1_destroy(layer_surface);
return;
}
layer_surface->output = output;
}
struct diyac_layer_surface *surface = calloc(1, sizeof(*surface));
struct diyac_output *output = layer_surface->output->data;
struct wlr_scene_tree *selected_layer =
output->layer_tree[layer_surface->current.layer];
surface->scene_layer_surface = wlr_scene_layer_surface_v1_create(
selected_layer, layer_surface);
if (!surface->scene_layer_surface) {
wlr_layer_surface_v1_destroy(layer_surface);
wlr_log(WLR_ERROR, "could not create layer surface");
return;
}
//node_descriptor_create(&surface->scene_layer_surface->tree->node,
// LAB_NODE_DESC_LAYER_SURFACE, surface);
surface->server = server;
surface->scene_layer_surface->layer_surface = layer_surface;
surface->surface_commit.notify = layer_surface_commit;
wl_signal_add(&layer_surface->surface->events.commit,
&surface->surface_commit);
surface->map.notify = layer_surface_map;
wl_signal_add(&layer_surface->surface->events.map, &surface->map);
surface->unmap.notify = layer_surface_unmap;
wl_signal_add(&layer_surface->surface->events.unmap, &surface->unmap);
surface->new_popup.notify = layer_surface_new_popup;
wl_signal_add(&layer_surface->events.new_popup, &surface->new_popup);
surface->output_destroy.notify = layer_surface_output_destroy;
wl_signal_add(&layer_surface->output->events.destroy,
&surface->output_destroy);
surface->node_destroy.notify = layer_surface_node_destroy;
wl_signal_add(&surface->scene_layer_surface->tree->node.events.destroy,
&surface->node_destroy);
/*
* Temporarily set the layer's current state to pending so that
* it can easily be arranged.
*/
//struct wlr_layer_surface_v1_state old_state = layer_surface->current;
//layer_surface->current = layer_surface->pending;
//output_update_usable_area(output);
//layer_surface->current = old_state;
}

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#define _POSIX_C_SOURCE 200112L
#include <time.h>
#include <stdlib.h>
#include <wlr/types/wlr_scene.h>
#include <wlr/types/wlr_output_layout.h>
#include "output.h"
static void output_frame(struct wl_listener *listener, void *data) {
/* This function is called every time an output is ready to display a frame,
* generally at the output's refresh rate (e.g. 60Hz). */
struct diyac_output *output = wl_container_of(listener, output, frame);
struct wlr_scene *scene = output->server->scene;
struct wlr_scene_output *scene_output = wlr_scene_get_scene_output(
scene, output->wlr_output);
/* Render the scene if needed and commit the output */
wlr_scene_output_commit(scene_output, NULL);
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
wlr_scene_output_send_frame_done(scene_output, &now);
}
static void output_request_state(struct wl_listener *listener, void *data) {
/* This function is called when the backend requests a new state for
* the output. For example, Wayland and X11 backends request a new mode
* when the output window is resized. */
struct diyac_output *output = wl_container_of(listener, output, request_state);
const struct wlr_output_event_request_state *event = data;
wlr_output_commit_state(output->wlr_output, event->state);
}
static void output_destroy(struct wl_listener *listener, void *data) {
struct diyac_output *output = wl_container_of(listener, output, destroy);
wl_list_remove(&output->frame.link);
wl_list_remove(&output->request_state.link);
wl_list_remove(&output->destroy.link);
wl_list_remove(&output->link);
free(output);
}
void diyac_server_new_output(struct wl_listener *listener, void *data) {
/* This event is raised by the backend when a new output (aka a display or
* monitor) becomes available. */
struct diyac_server *server =
wl_container_of(listener, server, new_output);
struct wlr_output *wlr_output = data;
/* Configures the output created by the backend to use our allocator
* and our renderer. Must be done once, before commiting the output */
wlr_output_init_render(wlr_output, server->allocator, server->renderer);
/* The output may be disabled, switch it on. */
struct wlr_output_state state;
wlr_output_state_init(&state);
wlr_output_state_set_enabled(&state, true);
/* Some backends don't have modes. DRM+KMS does, and we need to set a mode
* before we can use the output. The mode is a tuple of (width, height,
* refresh rate), and each monitor supports only a specific set of modes. We
* just pick the monitor's preferred mode, a more sophisticated compositor
* would let the user configure it. */
struct wlr_output_mode *mode = wlr_output_preferred_mode(wlr_output);
if (mode != NULL) {
wlr_output_state_set_mode(&state, mode);
}
/* Atomically applies the new output state. */
wlr_output_commit_state(wlr_output, &state);
wlr_output_state_finish(&state);
/* Allocates and configures our state for this output */
struct diyac_output *output = calloc(1, sizeof(*output));
output->wlr_output = wlr_output;
output->server = server;
/* Sets up a listener for the frame event. */
output->frame.notify = output_frame;
wl_signal_add(&wlr_output->events.frame, &output->frame);
/* Sets up a listener for the state request event. */
output->request_state.notify = output_request_state;
wl_signal_add(&wlr_output->events.request_state, &output->request_state);
/* Sets up a listener for the destroy event. */
output->destroy.notify = output_destroy;
wl_signal_add(&wlr_output->events.destroy, &output->destroy);
wl_list_insert(&server->outputs, &output->link);
/* Adds this to the output layout. The add_auto function arranges outputs
* from left-to-right in the order they appear. A more sophisticated
* compositor would let the user configure the arrangement of outputs in the
* layout.
*
* The output layout utility automatically adds a wl_output global to the
* display, which Wayland clients can see to find out information about the
* output (such as DPI, scale factor, manufacturer, etc).
*/
struct wlr_output_layout_output *l_output = wlr_output_layout_add_auto(server->output_layout,
wlr_output);
struct wlr_scene_output *scene_output = wlr_scene_output_create(server->scene, wlr_output);
wlr_scene_output_layout_add_output(server->scene_layout, l_output, scene_output);
}

7
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#ifndef DIYAC_OUTPUT_H
#define DIYAC_OUTPUT_H
#include "diyac.h"
void diyac_server_new_output(struct wl_listener *listener, void *data);
#endif

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="server_decoration">
<copyright><![CDATA[
Copyright (C) 2015 Martin Gräßlin
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
]]></copyright>
<interface name="org_kde_kwin_server_decoration_manager" version="1">
<description summary="Server side window decoration manager">
This interface allows to coordinate whether the server should create
a server-side window decoration around a wl_surface representing a
shell surface (wl_shell_surface or similar). By announcing support
for this interface the server indicates that it supports server
side decorations.
</description>
<request name="create">
<description summary="Create a server-side decoration object for a given surface">
When a client creates a server-side decoration object it indicates
that it supports the protocol. The client is supposed to tell the
server whether it wants server-side decorations or will provide
client-side decorations.
If the client does not create a server-side decoration object for
a surface the server interprets this as lack of support for this
protocol and considers it as client-side decorated. Nevertheless a
client-side decorated surface should use this protocol to indicate
to the server that it does not want a server-side deco.
</description>
<arg name="id" type="new_id" interface="org_kde_kwin_server_decoration"/>
<arg name="surface" type="object" interface="wl_surface"/>
</request>
<enum name="mode">
<description summary="Possible values to use in request_mode and the event mode."/>
<entry name="None" value="0" summary="Undecorated: The surface is not decorated at all, neither server nor client-side. An example is a popup surface which should not be decorated."/>
<entry name="Client" value="1" summary="Client-side decoration: The decoration is part of the surface and the client."/>
<entry name="Server" value="2" summary="Server-side decoration: The server embeds the surface into a decoration frame."/>
</enum>
<event name="default_mode">
<description summary="The default mode used on the server">
This event is emitted directly after binding the interface. It contains
the default mode for the decoration. When a new server decoration object
is created this new object will be in the default mode until the first
request_mode is requested.
The server may change the default mode at any time.
</description>
<arg name="mode" type="uint" summary="The default decoration mode applied to newly created server decorations."/>
</event>
</interface>
<interface name="org_kde_kwin_server_decoration" version="1">
<request name="release" type="destructor">
<description summary="release the server decoration object"/>
</request>
<enum name="mode">
<description summary="Possible values to use in request_mode and the event mode."/>
<entry name="None" value="0" summary="Undecorated: The surface is not decorated at all, neither server nor client-side. An example is a popup surface which should not be decorated."/>
<entry name="Client" value="1" summary="Client-side decoration: The decoration is part of the surface and the client."/>
<entry name="Server" value="2" summary="Server-side decoration: The server embeds the surface into a decoration frame."/>
</enum>
<request name="request_mode">
<description summary="The decoration mode the surface wants to use."/>
<arg name="mode" type="uint" summary="The mode this surface wants to use."/>
</request>
<event name="mode">
<description summary="The new decoration mode applied by the server">
This event is emitted directly after the decoration is created and
represents the base decoration policy by the server. E.g. a server
which wants all surfaces to be client-side decorated will send Client,
a server which wants server-side decoration will send Server.
The client can request a different mode through the decoration request.
The server will acknowledge this by another event with the same mode. So
even if a server prefers server-side decoration it's possible to force a
client-side decoration.
The server may emit this event at any time. In this case the client can
again request a different mode. It's the responsibility of the server to
prevent a feedback loop.
</description>
<arg name="mode" type="uint" summary="The decoration mode applied to the surface by the server."/>
</event>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="virtual_keyboard_unstable_v1">
<copyright>
Copyright © 2008-2011 Kristian Høgsberg
Copyright © 2010-2013 Intel Corporation
Copyright © 2012-2013 Collabora, Ltd.
Copyright © 2018 Purism SPC
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<interface name="zwp_virtual_keyboard_v1" version="1">
<description summary="virtual keyboard">
The virtual keyboard provides an application with requests which emulate
the behaviour of a physical keyboard.
This interface can be used by clients on its own to provide raw input
events, or it can accompany the input method protocol.
</description>
<request name="keymap">
<description summary="keyboard mapping">
Provide a file descriptor to the compositor which can be
memory-mapped to provide a keyboard mapping description.
Format carries a value from the keymap_format enumeration.
</description>
<arg name="format" type="uint" summary="keymap format"/>
<arg name="fd" type="fd" summary="keymap file descriptor"/>
<arg name="size" type="uint" summary="keymap size, in bytes"/>
</request>
<enum name="error">
<entry name="no_keymap" value="0" summary="No keymap was set"/>
</enum>
<request name="key">
<description summary="key event">
A key was pressed or released.
The time argument is a timestamp with millisecond granularity, with an
undefined base. All requests regarding a single object must share the
same clock.
Keymap must be set before issuing this request.
State carries a value from the key_state enumeration.
</description>
<arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
<arg name="key" type="uint" summary="key that produced the event"/>
<arg name="state" type="uint" summary="physical state of the key"/>
</request>
<request name="modifiers">
<description summary="modifier and group state">
Notifies the compositor that the modifier and/or group state has
changed, and it should update state.
The client should use wl_keyboard.modifiers event to synchronize its
internal state with seat state.
Keymap must be set before issuing this request.
</description>
<arg name="mods_depressed" type="uint" summary="depressed modifiers"/>
<arg name="mods_latched" type="uint" summary="latched modifiers"/>
<arg name="mods_locked" type="uint" summary="locked modifiers"/>
<arg name="group" type="uint" summary="keyboard layout"/>
</request>
<request name="destroy" type="destructor" since="1">
<description summary="destroy the virtual keyboard keyboard object"/>
</request>
</interface>
<interface name="zwp_virtual_keyboard_manager_v1" version="1">
<description summary="virtual keyboard manager">
A virtual keyboard manager allows an application to provide keyboard
input events as if they came from a physical keyboard.
</description>
<enum name="error">
<entry name="unauthorized" value="0" summary="client not authorized to use the interface"/>
</enum>
<request name="create_virtual_keyboard">
<description summary="Create a new virtual keyboard">
Creates a new virtual keyboard associated to a seat.
If the compositor enables a keyboard to perform arbitrary actions, it
should present an error when an untrusted client requests a new
keyboard.
</description>
<arg name="seat" type="object" interface="wl_seat"/>
<arg name="id" type="new_id" interface="zwp_virtual_keyboard_v1"/>
</request>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="wlr_input_inhibit_unstable_v1">
<copyright>
Copyright © 2018 Drew DeVault
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that copyright notice and this permission
notice appear in supporting documentation, and that the name of
the copyright holders not be used in advertising or publicity
pertaining to distribution of the software without specific,
written prior permission. The copyright holders make no
representations about the suitability of this software for any
purpose. It is provided "as is" without express or implied
warranty.
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
</copyright>
<interface name="zwlr_input_inhibit_manager_v1" version="1">
<description summary="inhibits input events to other clients">
Clients can use this interface to prevent input events from being sent to
any surfaces but its own, which is useful for example in lock screen
software. It is assumed that access to this interface will be locked down
to whitelisted clients by the compositor.
</description>
<request name="get_inhibitor">
<description summary="inhibit input to other clients">
Activates the input inhibitor. As long as the inhibitor is active, the
compositor will not send input events to other clients.
</description>
<arg name="id" type="new_id" interface="zwlr_input_inhibitor_v1"/>
</request>
<enum name="error">
<entry name="already_inhibited" value="0" summary="an input inhibitor is already in use on the compositor"/>
</enum>
</interface>
<interface name="zwlr_input_inhibitor_v1" version="1">
<description summary="inhibits input to other clients">
While this resource exists, input to clients other than the owner of the
inhibitor resource will not receive input events. The client that owns
this resource will receive all input events normally. The compositor will
also disable all of its own input processing (such as keyboard shortcuts)
while the inhibitor is active.
The compositor may continue to send input events to selected clients,
such as an on-screen keyboard (via the input-method protocol).
</description>
<request name="destroy" type="destructor">
<description summary="destroy the input inhibitor object">
Destroy the inhibitor and allow other clients to receive input.
</description>
</request>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="wlr_layer_shell_unstable_v1">
<copyright>
Copyright © 2017 Drew DeVault
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that copyright notice and this permission
notice appear in supporting documentation, and that the name of
the copyright holders not be used in advertising or publicity
pertaining to distribution of the software without specific,
written prior permission. The copyright holders make no
representations about the suitability of this software for any
purpose. It is provided "as is" without express or implied
warranty.
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
</copyright>
<interface name="zwlr_layer_shell_v1" version="4">
<description summary="create surfaces that are layers of the desktop">
Clients can use this interface to assign the surface_layer role to
wl_surfaces. Such surfaces are assigned to a "layer" of the output and
rendered with a defined z-depth respective to each other. They may also be
anchored to the edges and corners of a screen and specify input handling
semantics. This interface should be suitable for the implementation of
many desktop shell components, and a broad number of other applications
that interact with the desktop.
</description>
<request name="get_layer_surface">
<description summary="create a layer_surface from a surface">
Create a layer surface for an existing surface. This assigns the role of
layer_surface, or raises a protocol error if another role is already
assigned.
Creating a layer surface from a wl_surface which has a buffer attached
or committed is a client error, and any attempts by a client to attach
or manipulate a buffer prior to the first layer_surface.configure call
must also be treated as errors.
After creating a layer_surface object and setting it up, the client
must perform an initial commit without any buffer attached.
The compositor will reply with a layer_surface.configure event.
The client must acknowledge it and is then allowed to attach a buffer
to map the surface.
You may pass NULL for output to allow the compositor to decide which
output to use. Generally this will be the one that the user most
recently interacted with.
Clients can specify a namespace that defines the purpose of the layer
surface.
</description>
<arg name="id" type="new_id" interface="zwlr_layer_surface_v1"/>
<arg name="surface" type="object" interface="wl_surface"/>
<arg name="output" type="object" interface="wl_output" allow-null="true"/>
<arg name="layer" type="uint" enum="layer" summary="layer to add this surface to"/>
<arg name="namespace" type="string" summary="namespace for the layer surface"/>
</request>
<enum name="error">
<entry name="role" value="0" summary="wl_surface has another role"/>
<entry name="invalid_layer" value="1" summary="layer value is invalid"/>
<entry name="already_constructed" value="2" summary="wl_surface has a buffer attached or committed"/>
</enum>
<enum name="layer">
<description summary="available layers for surfaces">
These values indicate which layers a surface can be rendered in. They
are ordered by z depth, bottom-most first. Traditional shell surfaces
will typically be rendered between the bottom and top layers.
Fullscreen shell surfaces are typically rendered at the top layer.
Multiple surfaces can share a single layer, and ordering within a
single layer is undefined.
</description>
<entry name="background" value="0"/>
<entry name="bottom" value="1"/>
<entry name="top" value="2"/>
<entry name="overlay" value="3"/>
</enum>
<!-- Version 3 additions -->
<request name="destroy" type="destructor" since="3">
<description summary="destroy the layer_shell object">
This request indicates that the client will not use the layer_shell
object any more. Objects that have been created through this instance
are not affected.
</description>
</request>
</interface>
<interface name="zwlr_layer_surface_v1" version="4">
<description summary="layer metadata interface">
An interface that may be implemented by a wl_surface, for surfaces that
are designed to be rendered as a layer of a stacked desktop-like
environment.
Layer surface state (layer, size, anchor, exclusive zone,
margin, interactivity) is double-buffered, and will be applied at the
time wl_surface.commit of the corresponding wl_surface is called.
Attaching a null buffer to a layer surface unmaps it.
Unmapping a layer_surface means that the surface cannot be shown by the
compositor until it is explicitly mapped again. The layer_surface
returns to the state it had right after layer_shell.get_layer_surface.
The client can re-map the surface by performing a commit without any
buffer attached, waiting for a configure event and handling it as usual.
</description>
<request name="set_size">
<description summary="sets the size of the surface">
Sets the size of the surface in surface-local coordinates. The
compositor will display the surface centered with respect to its
anchors.
If you pass 0 for either value, the compositor will assign it and
inform you of the assignment in the configure event. You must set your
anchor to opposite edges in the dimensions you omit; not doing so is a
protocol error. Both values are 0 by default.
Size is double-buffered, see wl_surface.commit.
</description>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</request>
<request name="set_anchor">
<description summary="configures the anchor point of the surface">
Requests that the compositor anchor the surface to the specified edges
and corners. If two orthogonal edges are specified (e.g. 'top' and
'left'), then the anchor point will be the intersection of the edges
(e.g. the top left corner of the output); otherwise the anchor point
will be centered on that edge, or in the center if none is specified.
Anchor is double-buffered, see wl_surface.commit.
</description>
<arg name="anchor" type="uint" enum="anchor"/>
</request>
<request name="set_exclusive_zone">
<description summary="configures the exclusive geometry of this surface">
Requests that the compositor avoids occluding an area with other
surfaces. The compositor's use of this information is
implementation-dependent - do not assume that this region will not
actually be occluded.
A positive value is only meaningful if the surface is anchored to one
edge or an edge and both perpendicular edges. If the surface is not
anchored, anchored to only two perpendicular edges (a corner), anchored
to only two parallel edges or anchored to all edges, a positive value
will be treated the same as zero.
A positive zone is the distance from the edge in surface-local
coordinates to consider exclusive.
Surfaces that do not wish to have an exclusive zone may instead specify
how they should interact with surfaces that do. If set to zero, the
surface indicates that it would like to be moved to avoid occluding
surfaces with a positive exclusive zone. If set to -1, the surface
indicates that it would not like to be moved to accommodate for other
surfaces, and the compositor should extend it all the way to the edges
it is anchored to.
For example, a panel might set its exclusive zone to 10, so that
maximized shell surfaces are not shown on top of it. A notification
might set its exclusive zone to 0, so that it is moved to avoid
occluding the panel, but shell surfaces are shown underneath it. A
wallpaper or lock screen might set their exclusive zone to -1, so that
they stretch below or over the panel.
The default value is 0.
Exclusive zone is double-buffered, see wl_surface.commit.
</description>
<arg name="zone" type="int"/>
</request>
<request name="set_margin">
<description summary="sets a margin from the anchor point">
Requests that the surface be placed some distance away from the anchor
point on the output, in surface-local coordinates. Setting this value
for edges you are not anchored to has no effect.
The exclusive zone includes the margin.
Margin is double-buffered, see wl_surface.commit.
</description>
<arg name="top" type="int"/>
<arg name="right" type="int"/>
<arg name="bottom" type="int"/>
<arg name="left" type="int"/>
</request>
<enum name="keyboard_interactivity">
<description summary="types of keyboard interaction possible for a layer shell surface">
Types of keyboard interaction possible for layer shell surfaces. The
rationale for this is twofold: (1) some applications are not interested
in keyboard events and not allowing them to be focused can improve the
desktop experience; (2) some applications will want to take exclusive
keyboard focus.
</description>
<entry name="none" value="0">
<description summary="no keyboard focus is possible">
This value indicates that this surface is not interested in keyboard
events and the compositor should never assign it the keyboard focus.
This is the default value, set for newly created layer shell surfaces.
This is useful for e.g. desktop widgets that display information or
only have interaction with non-keyboard input devices.
</description>
</entry>
<entry name="exclusive" value="1">
<description summary="request exclusive keyboard focus">
Request exclusive keyboard focus if this surface is above the shell surface layer.
For the top and overlay layers, the seat will always give
exclusive keyboard focus to the top-most layer which has keyboard
interactivity set to exclusive. If this layer contains multiple
surfaces with keyboard interactivity set to exclusive, the compositor
determines the one receiving keyboard events in an implementation-
defined manner. In this case, no guarantee is made when this surface
will receive keyboard focus (if ever).
For the bottom and background layers, the compositor is allowed to use
normal focus semantics.
This setting is mainly intended for applications that need to ensure
they receive all keyboard events, such as a lock screen or a password
prompt.
</description>
</entry>
<entry name="on_demand" value="2" since="4">
<description summary="request regular keyboard focus semantics">
This requests the compositor to allow this surface to be focused and
unfocused by the user in an implementation-defined manner. The user
should be able to unfocus this surface even regardless of the layer
it is on.
Typically, the compositor will want to use its normal mechanism to
manage keyboard focus between layer shell surfaces with this setting
and regular toplevels on the desktop layer (e.g. click to focus).
Nevertheless, it is possible for a compositor to require a special
interaction to focus or unfocus layer shell surfaces (e.g. requiring
a click even if focus follows the mouse normally, or providing a
keybinding to switch focus between layers).
This setting is mainly intended for desktop shell components (e.g.
panels) that allow keyboard interaction. Using this option can allow
implementing a desktop shell that can be fully usable without the
mouse.
</description>
</entry>
</enum>
<request name="set_keyboard_interactivity">
<description summary="requests keyboard events">
Set how keyboard events are delivered to this surface. By default,
layer shell surfaces do not receive keyboard events; this request can
be used to change this.
This setting is inherited by child surfaces set by the get_popup
request.
Layer surfaces receive pointer, touch, and tablet events normally. If
you do not want to receive them, set the input region on your surface
to an empty region.
Keyboard interactivity is double-buffered, see wl_surface.commit.
</description>
<arg name="keyboard_interactivity" type="uint" enum="keyboard_interactivity"/>
</request>
<request name="get_popup">
<description summary="assign this layer_surface as an xdg_popup parent">
This assigns an xdg_popup's parent to this layer_surface. This popup
should have been created via xdg_surface::get_popup with the parent set
to NULL, and this request must be invoked before committing the popup's
initial state.
See the documentation of xdg_popup for more details about what an
xdg_popup is and how it is used.
</description>
<arg name="popup" type="object" interface="xdg_popup"/>
</request>
<request name="ack_configure">
<description summary="ack a configure event">
When a configure event is received, if a client commits the
surface in response to the configure event, then the client
must make an ack_configure request sometime before the commit
request, passing along the serial of the configure event.
If the client receives multiple configure events before it
can respond to one, it only has to ack the last configure event.
A client is not required to commit immediately after sending
an ack_configure request - it may even ack_configure several times
before its next surface commit.
A client may send multiple ack_configure requests before committing, but
only the last request sent before a commit indicates which configure
event the client really is responding to.
</description>
<arg name="serial" type="uint" summary="the serial from the configure event"/>
</request>
<request name="destroy" type="destructor">
<description summary="destroy the layer_surface">
This request destroys the layer surface.
</description>
</request>
<event name="configure">
<description summary="suggest a surface change">
The configure event asks the client to resize its surface.
Clients should arrange their surface for the new states, and then send
an ack_configure request with the serial sent in this configure event at
some point before committing the new surface.
The client is free to dismiss all but the last configure event it
received.
The width and height arguments specify the size of the window in
surface-local coordinates.
The size is a hint, in the sense that the client is free to ignore it if
it doesn't resize, pick a smaller size (to satisfy aspect ratio or
resize in steps of NxM pixels). If the client picks a smaller size and
is anchored to two opposite anchors (e.g. 'top' and 'bottom'), the
surface will be centered on this axis.
If the width or height arguments are zero, it means the client should
decide its own window dimension.
</description>
<arg name="serial" type="uint"/>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</event>
<event name="closed">
<description summary="surface should be closed">
The closed event is sent by the compositor when the surface will no
longer be shown. The output may have been destroyed or the user may
have asked for it to be removed. Further changes to the surface will be
ignored. The client should destroy the resource after receiving this
event, and create a new surface if they so choose.
</description>
</event>
<enum name="error">
<entry name="invalid_surface_state" value="0" summary="provided surface state is invalid"/>
<entry name="invalid_size" value="1" summary="size is invalid"/>
<entry name="invalid_anchor" value="2" summary="anchor bitfield is invalid"/>
<entry name="invalid_keyboard_interactivity" value="3" summary="keyboard interactivity is invalid"/>
</enum>
<enum name="anchor" bitfield="true">
<entry name="top" value="1" summary="the top edge of the anchor rectangle"/>
<entry name="bottom" value="2" summary="the bottom edge of the anchor rectangle"/>
<entry name="left" value="4" summary="the left edge of the anchor rectangle"/>
<entry name="right" value="8" summary="the right edge of the anchor rectangle"/>
</enum>
<!-- Version 2 additions -->
<request name="set_layer" since="2">
<description summary="change the layer of the surface">
Change the layer that the surface is rendered on.
Layer is double-buffered, see wl_surface.commit.
</description>
<arg name="layer" type="uint" enum="zwlr_layer_shell_v1.layer" summary="layer to move this surface to"/>
</request>
</interface>
</protocol>

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#define _POSIX_C_SOURCE 200112L
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_data_device.h>
#include <wlr/types/wlr_cursor.h>
#include <stdlib.h>
#include "seat.h"
static void keyboard_handle_modifiers(
struct wl_listener *listener, void *data)
{
/* This event is raised when a modifier key, such as shift or alt, is
* pressed. We simply communicate this to the client. */
struct diyac_keyboard *keyboard =
wl_container_of(listener, keyboard, modifiers);
/*
* A seat can only have one keyboard, but this is a limitation of the
* Wayland protocol - not wlroots. We assign all connected keyboards to the
* same seat. You can swap out the underlying wlr_keyboard like this and
* wlr_seat handles this transparently.
*/
wlr_seat_set_keyboard(keyboard->server->seat.wlr_seat, keyboard->wlr_keyboard);
/* Send modifiers to the client. */
wlr_seat_keyboard_notify_modifiers(keyboard->server->seat.wlr_seat,
&keyboard->wlr_keyboard->modifiers);
}
static bool handle_keybinding(struct diyac_server *server, xkb_keysym_t sym)
{
/*
* 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 Alt is held down.
*/
switch (sym)
{
case XKB_KEY_Escape:
wl_display_terminate(server->wl_display);
break;
case XKB_KEY_F1:
/* Cycle to the next toplevel */
if (wl_list_length(&server->toplevels) < 2)
{
break;
}
struct diyac_toplevel *next_toplevel =
wl_container_of(server->toplevels.prev, next_toplevel, link);
diyac_focus_toplevel(next_toplevel, next_toplevel->xdg_toplevel->base->surface);
break;
default:
return false;
}
return true;
}
static void keyboard_handle_key(
struct wl_listener *listener, void *data)
{
/* This event is raised when a key is pressed or released. */
struct diyac_keyboard *keyboard =
wl_container_of(listener, keyboard, key);
struct diyac_server *server = keyboard->server;
struct wlr_keyboard_key_event *event = data;
struct wlr_seat *seat = server->seat.wlr_seat;
/* Translate libinput keycode -> xkbcommon */
uint32_t keycode = event->keycode + 8;
/* Get a list of keysyms based on the keymap for this keyboard */
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(
keyboard->wlr_keyboard->xkb_state, keycode, &syms);
bool handled = false;
uint32_t modifiers = wlr_keyboard_get_modifiers(keyboard->wlr_keyboard);
if ((modifiers & WLR_MODIFIER_ALT) &&
event->state == WL_KEYBOARD_KEY_STATE_PRESSED)
{
/* If alt is held down and this button was _pressed_, we attempt to
* process it as a compositor keybinding. */
for (int i = 0; i < nsyms; i++)
{
handled = handle_keybinding(server, syms[i]);
}
}
if (!handled)
{
/* Otherwise, we pass it along to the client. */
wlr_seat_set_keyboard(seat, keyboard->wlr_keyboard);
wlr_seat_keyboard_notify_key(seat, event->time_msec,
event->keycode, event->state);
}
}
static void keyboard_handle_destroy(struct wl_listener *listener, void *data)
{
/* This event is raised by the keyboard base wlr_input_device to signal
* the destruction of the wlr_keyboard. It will no longer receive events
* and should be destroyed.
*/
struct diyac_keyboard *keyboard =
wl_container_of(listener, keyboard, destroy);
wl_list_remove(&keyboard->modifiers.link);
wl_list_remove(&keyboard->key.link);
wl_list_remove(&keyboard->destroy.link);
wl_list_remove(&keyboard->link);
free(keyboard);
}
static void server_new_keyboard(struct diyac_server *server,
struct wlr_input_device *device)
{
struct wlr_keyboard *wlr_keyboard = wlr_keyboard_from_input_device(device);
struct diyac_keyboard *keyboard = calloc(1, sizeof(*keyboard));
keyboard->server = server;
keyboard->wlr_keyboard = wlr_keyboard;
/* We need to prepare an XKB keymap and assign it to the keyboard. This
* assumes the defaults (e.g. layout = "us"). */
struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
struct xkb_keymap *keymap = xkb_keymap_new_from_names(context, NULL,
XKB_KEYMAP_COMPILE_NO_FLAGS);
wlr_keyboard_set_keymap(wlr_keyboard, keymap);
xkb_keymap_unref(keymap);
xkb_context_unref(context);
wlr_keyboard_set_repeat_info(wlr_keyboard, 25, 600);
/* Here we set up listeners for keyboard events. */
keyboard->modifiers.notify = keyboard_handle_modifiers;
wl_signal_add(&wlr_keyboard->events.modifiers, &keyboard->modifiers);
keyboard->key.notify = keyboard_handle_key;
wl_signal_add(&wlr_keyboard->events.key, &keyboard->key);
keyboard->destroy.notify = keyboard_handle_destroy;
wl_signal_add(&device->events.destroy, &keyboard->destroy);
wlr_seat_set_keyboard(server->seat.wlr_seat, keyboard->wlr_keyboard);
/* And add the keyboard to our list of keyboards */
wl_list_insert(&server->seat.keyboards, &keyboard->link);
}
static void server_new_pointer(struct diyac_server *server,
struct wlr_input_device *device)
{
/* We don't do anything special with pointers. All of our pointer handling
* is proxied through wlr_cursor. On another compositor, you might take this
* opportunity to do libinput configuration on the device to set
* acceleration, etc. */
wlr_cursor_attach_input_device(server->seat.cursor, device);
}
static void server_new_input(struct wl_listener *listener, void *data)
{
/* This event is raised by the backend when a new input device becomes
* available. */
struct diyac_seat* seat =
wl_container_of(listener, seat, new_input);
struct wlr_input_device *device = data;
switch (device->type)
{
case WLR_INPUT_DEVICE_KEYBOARD:
server_new_keyboard(seat->server, device);
break;
case WLR_INPUT_DEVICE_POINTER:
server_new_pointer(seat->server, device);
break;
default:
break;
}
/* We need to let the wlr_seat know what our capabilities are, which is
* communiciated to the client. In Diyac we always have a cursor, even if
* there are no pointer devices, so we always include that capability. */
uint32_t caps = WL_SEAT_CAPABILITY_POINTER;
if (!wl_list_empty(&seat->keyboards))
{
caps |= WL_SEAT_CAPABILITY_KEYBOARD;
}
wlr_seat_set_capabilities(seat->wlr_seat, caps);
}
static void seat_request_cursor(struct wl_listener *listener, void *data)
{
struct diyac_seat *seat = wl_container_of(
listener, seat, request_cursor);
/* This event is raised by the seat when a client provides a cursor image */
struct wlr_seat_pointer_request_set_cursor_event *event = data;
struct wlr_seat_client *focused_client =
seat->wlr_seat->pointer_state.focused_client;
/* This can be sent by any client, so we check to make sure this one is
* actually has pointer focus first. */
if (focused_client == event->seat_client)
{
/* Once we've vetted the client, we can tell the cursor to use the
* provided surface as the cursor image. It will set the hardware cursor
* on the output that it's currently on and continue to do so as the
* cursor moves between outputs. */
wlr_cursor_set_surface(seat->cursor, event->surface,
event->hotspot_x, event->hotspot_y);
}
}
static void seat_request_set_selection(struct wl_listener *listener, void *data)
{
/* This event is raised by the seat when a client wants to set the selection,
* usually when the user copies something. wlroots allows compositors to
* ignore such requests if they so choose, but in diyac we always honor
*/
struct diyac_seat *seat = wl_container_of(
listener, seat, request_set_selection);
struct wlr_seat_request_set_selection_event *event = data;
wlr_seat_set_selection(seat->wlr_seat, event->source, event->serial);
}
/*
* Configures a seat, which is a single "seat" at which a user sits and
* operates the computer. This conceptually includes up to one keyboard,
* pointer, touch, and drawing tablet device. We also rig up a listener to
* let us know when new input devices are available on the backend.
*/
void diyac_init_seat(struct diyac_server *server)
{
//server->seat = calloc(1, sizeof(struct diyac_seat));
server->seat.server = server;
server->seat.new_input.notify = server_new_input;
wl_signal_add(&server->backend->events.new_input, &server->seat.new_input);
server->seat.wlr_seat = wlr_seat_create(server->wl_display, "seat0");
server->seat.request_cursor.notify = seat_request_cursor;
wl_signal_add(&server->seat.wlr_seat->events.request_set_cursor,
&server->seat.request_cursor);
server->seat.request_set_selection.notify = seat_request_set_selection;
wl_signal_add(&server->seat.wlr_seat->events.request_set_selection,
&server->seat.request_set_selection);
}

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#ifndef DIYAC_SEAT_H
#define DIYAC_SEAT_H
#include "diyac.h"
void diyac_init_seat(struct diyac_server* server);
#endif

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#define _POSIX_C_SOURCE 200112L
#include <wlr/types/wlr_scene.h>
#include <wlr/util/log.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <assert.h>
#include <stdlib.h>
#include "xdg.h"
#include "cursor.h"
static void begin_interactive(struct diyac_toplevel *toplevel,
enum diyac_cursor_mode mode, uint32_t edges)
{
/* This function sets up an interactive move or resize operation, where the
* compositor stops propegating pointer events to clients and instead
* consumes them itself, to move or resize windows. */
struct diyac_server *server = toplevel->server;
struct wlr_surface *focused_surface =
server->seat.wlr_seat->pointer_state.focused_surface;
if (toplevel->xdg_toplevel->base->surface !=
wlr_surface_get_root_surface(focused_surface))
{
/* Deny move/resize requests from unfocused clients. */
return;
}
server->grabbed_toplevel = toplevel;
server->seat.cursor_mode = mode;
if (mode == DIYAC_CURSOR_MOVE)
{
server->grab_x = server->seat.cursor->x - toplevel->scene_tree->node.x;
server->grab_y = server->seat.cursor->y - toplevel->scene_tree->node.y;
}
else
{
struct wlr_box geo_box;
wlr_xdg_surface_get_geometry(toplevel->xdg_toplevel->base, &geo_box);
double border_x = (toplevel->scene_tree->node.x + geo_box.x) +
((edges & WLR_EDGE_RIGHT) ? geo_box.width : 0);
double border_y = (toplevel->scene_tree->node.y + geo_box.y) +
((edges & WLR_EDGE_BOTTOM) ? geo_box.height : 0);
server->grab_x = server->seat.cursor->x - border_x;
server->grab_y = server->seat.cursor->y - border_y;
server->grab_geobox = geo_box;
server->grab_geobox.x += toplevel->scene_tree->node.x;
server->grab_geobox.y += toplevel->scene_tree->node.y;
server->resize_edges = edges;
}
}
static void xdg_toplevel_map(struct wl_listener *listener, void *data)
{
/* Called when the surface is mapped, or ready to display on-screen. */
struct diyac_toplevel *toplevel = wl_container_of(listener, toplevel, map);
wl_list_insert(&toplevel->server->toplevels, &toplevel->link);
diyac_focus_toplevel(toplevel, toplevel->xdg_toplevel->base->surface);
}
static void xdg_toplevel_unmap(struct wl_listener *listener, void *data)
{
/* Called when the surface is unmapped, and should no longer be shown. */
struct diyac_toplevel *toplevel = wl_container_of(listener, toplevel, unmap);
/* Reset the cursor mode if the grabbed toplevel was unmapped. */
if (toplevel == toplevel->server->grabbed_toplevel)
{
diyac_reset_cursor_mode(toplevel->server);
}
wl_list_remove(&toplevel->link);
}
static void xdg_toplevel_request_move(
struct wl_listener *listener, void *data)
{
/* This event is raised when a client would like to begin an interactive
* move, typically because the user clicked on their client-side
* decorations. Note that a more sophisticated compositor should check the
* provided serial against a list of button press serials sent to this
* client, to prevent the client from requesting this whenever they want. */
struct diyac_toplevel *toplevel = wl_container_of(listener, toplevel, request_move);
begin_interactive(toplevel, DIYAC_CURSOR_MOVE, 0);
}
static void xdg_toplevel_request_resize(
struct wl_listener *listener, void *data)
{
/* This event is raised when a client would like to begin an interactive
* resize, typically because the user clicked on their client-side
* decorations. Note that a more sophisticated compositor should check the
* provided serial against a list of button press serials sent to this
* client, to prevent the client from requesting this whenever they want. */
struct wlr_xdg_toplevel_resize_event *event = data;
struct diyac_toplevel *toplevel = wl_container_of(listener, toplevel, request_resize);
begin_interactive(toplevel, DIYAC_CURSOR_RESIZE, event->edges);
}
static void xdg_toplevel_request_maximize(
struct wl_listener *listener, void *data)
{
/* This event is raised when a client would like to maximize itself,
* typically because the user clicked on the maximize button on
* client-side decorations. diyac doesn't support maximization, but
* to conform to xdg-shell protocol we still must send a configure.
* wlr_xdg_surface_schedule_configure() is used to send an empty reply. */
struct diyac_toplevel *toplevel =
wl_container_of(listener, toplevel, request_maximize);
// wlr_wl_output* output = get_wl_output_from_surface(struct wlr_wl_backend *wl,
// struct wl_surface *surface);
wlr_log(WLR_ERROR, "request maximize %dx%d", toplevel->output->width, toplevel->output->height);
wlr_scene_node_set_position(&toplevel->scene_tree->node,0,0);
wlr_xdg_toplevel_set_size(toplevel->xdg_toplevel, toplevel->output->width, toplevel->output->height);
//wlr_xdg_surface_schedule_configure(toplevel->xdg_toplevel->base);
}
static void xdg_toplevel_request_fullscreen(
struct wl_listener *listener, void *data)
{
/* Just as with request_maximize, we must send a configure here. */
struct diyac_toplevel *toplevel =
wl_container_of(listener, toplevel, request_fullscreen);
wlr_xdg_surface_schedule_configure(toplevel->xdg_toplevel->base);
}
static void xdg_toplevel_destroy(struct wl_listener *listener, void *data)
{
/* Called when the xdg_toplevel is destroyed. */
struct diyac_toplevel *toplevel = wl_container_of(listener, toplevel, destroy);
wl_list_remove(&toplevel->map.link);
wl_list_remove(&toplevel->unmap.link);
wl_list_remove(&toplevel->destroy.link);
wl_list_remove(&toplevel->request_move.link);
wl_list_remove(&toplevel->request_resize.link);
wl_list_remove(&toplevel->request_maximize.link);
wl_list_remove(&toplevel->request_fullscreen.link);
free(toplevel);
}
void diyac_new_xdg_surface(struct wl_listener *listener, void *data)
{
/* This event is raised when wlr_xdg_shell receives a new xdg surface from a
* client, either a toplevel (application window) or popup. */
struct diyac_server *server =
wl_container_of(listener, server, new_xdg_surface);
struct wlr_xdg_surface *xdg_surface = data;
/* We must add xdg popups to the scene graph so they get rendered. The
* wlroots scene graph provides a helper for this, but to use it we must
* provide the proper parent scene node of the xdg popup. To enable this,
* we always set the user data field of xdg_surfaces to the corresponding
* scene node. */
if (xdg_surface->role == WLR_XDG_SURFACE_ROLE_POPUP)
{
struct wlr_xdg_surface *parent =
wlr_xdg_surface_try_from_wlr_surface(xdg_surface->popup->parent);
assert(parent != NULL);
struct wlr_scene_tree *parent_tree = parent->data;
xdg_surface->data = wlr_scene_xdg_surface_create(
parent_tree, xdg_surface);
return;
}
assert(xdg_surface->role == WLR_XDG_SURFACE_ROLE_TOPLEVEL);
/* Allocate a diyac_toplevel for this surface */
struct diyac_toplevel *toplevel = calloc(1, sizeof(*toplevel));
toplevel->server = server;
toplevel->xdg_toplevel = xdg_surface->toplevel;
toplevel->scene_tree = wlr_scene_xdg_surface_create(
&toplevel->server->scene->tree, toplevel->xdg_toplevel->base);
toplevel->scene_tree->node.data = toplevel;
xdg_surface->data = toplevel->scene_tree;
struct wlr_output *output = wlr_output_layout_output_at(
server->output_layout, server->seat.cursor->x,
server->seat.cursor->y);
toplevel->output = output;
if (!output)
{
wlr_log(WLR_ERROR,
"No output available to assign layer surface");
}
/* Listen to the various events it can emit */
toplevel->map.notify = xdg_toplevel_map;
wl_signal_add(&xdg_surface->surface->events.map, &toplevel->map);
toplevel->unmap.notify = xdg_toplevel_unmap;
wl_signal_add(&xdg_surface->surface->events.unmap, &toplevel->unmap);
toplevel->destroy.notify = xdg_toplevel_destroy;
wl_signal_add(&xdg_surface->events.destroy, &toplevel->destroy);
/* cotd */
struct wlr_xdg_toplevel *xdg_toplevel = xdg_surface->toplevel;
toplevel->request_move.notify = xdg_toplevel_request_move;
wl_signal_add(&xdg_toplevel->events.request_move, &toplevel->request_move);
toplevel->request_resize.notify = xdg_toplevel_request_resize;
wl_signal_add(&xdg_toplevel->events.request_resize, &toplevel->request_resize);
toplevel->request_maximize.notify = xdg_toplevel_request_maximize;
wl_signal_add(&xdg_toplevel->events.request_maximize,
&toplevel->request_maximize);
toplevel->request_fullscreen.notify = xdg_toplevel_request_fullscreen;
wl_signal_add(&xdg_toplevel->events.request_fullscreen,
&toplevel->request_fullscreen);
}

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#ifndef DIYAC_XDG_H
#define DIYAC_XDG_H
#include "diyac.h"
void diyac_new_xdg_surface(struct wl_listener *listener, void *data);
#endif