commit: 69360ac7ec8c213186d52a66cb412fa784b40fa2
parent: 539e8d045995258d3aba6619bd2809e65c811ca8
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date: Mon, 1 Jul 2019 06:21:26 +0200
make format
Diffstat:
| M | inaban.c | 541 | ++++++++++++++++++++++++++++++++++++++++++++----------------------------------- |
1 file changed, 305 insertions(+), 236 deletions(-)
diff --git a/inaban.c b/inaban.c
@@ -2,15 +2,15 @@
#define _POSIX_C_SOURCE 200112L
#include <getopt.h>
#include <stdbool.h>
-#include <stdlib.h>
#include <stdio.h>
+#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <wayland-server.h>
#include <wlr/backend.h>
#include <wlr/render/wlr_renderer.h>
-#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_compositor.h>
+#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_data_device.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_keyboard.h>
@@ -25,13 +25,15 @@
#include <xkbcommon/xkbcommon.h>
/* For brevity's sake, struct members are annotated where they are used. */
-enum inaban_cursor_mode {
+enum inaban_cursor_mode
+{
INABAN_CURSOR_PASSTHROUGH,
INABAN_CURSOR_MOVE,
INABAN_CURSOR_RESIZE,
};
-struct inaban_server {
+struct inaban_server
+{
struct wl_display *wl_display;
struct wlr_backend *backend;
struct wlr_renderer *renderer;
@@ -63,14 +65,16 @@ struct inaban_server {
struct wl_listener new_output;
};
-struct inaban_output {
+struct inaban_output
+{
struct wl_list link;
struct inaban_server *server;
struct wlr_output *wlr_output;
struct wl_listener frame;
};
-struct inaban_view {
+struct inaban_view
+{
struct wl_list link;
struct inaban_server *server;
struct wlr_xdg_surface *xdg_surface;
@@ -83,7 +87,8 @@ struct inaban_view {
int x, y;
};
-struct inaban_keyboard {
+struct inaban_keyboard
+{
struct wl_list link;
struct inaban_server *server;
struct wlr_input_device *device;
@@ -92,26 +97,31 @@ struct inaban_keyboard {
struct wl_listener key;
};
-static void focus_view(struct inaban_view *view, struct wlr_surface *surface) {
+static void
+focus_view(struct inaban_view *view, struct wlr_surface *surface)
+{
/* Note: this function only deals with keyboard focus. */
- if (view == NULL) {
+ if(view == NULL)
+ {
return;
}
- struct inaban_server *server = view->server;
- struct wlr_seat *seat = server->seat;
+ struct inaban_server *server = view->server;
+ struct wlr_seat *seat = server->seat;
struct wlr_surface *prev_surface = seat->keyboard_state.focused_surface;
- if (prev_surface == surface) {
+ if(prev_surface == surface)
+ {
/* Don't re-focus an already focused surface. */
return;
}
- if (prev_surface) {
+ if(prev_surface)
+ {
/*
* Deactivate the previously focused surface. This lets the client know
* it no longer has focus and the client will repaint accordingly, e.g.
* stop displaying a caret.
*/
- struct wlr_xdg_surface *previous = wlr_xdg_surface_from_wlr_surface(
- seat->keyboard_state.focused_surface);
+ struct wlr_xdg_surface *previous =
+ wlr_xdg_surface_from_wlr_surface(seat->keyboard_state.focused_surface);
wlr_xdg_toplevel_set_activated(previous, false);
}
struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat);
@@ -125,16 +135,19 @@ static void focus_view(struct inaban_view *view, struct wlr_surface *surface) {
* track of this and automatically send key events to the appropriate
* clients without additional work on your part.
*/
- wlr_seat_keyboard_notify_enter(seat, view->xdg_surface->surface,
- keyboard->keycodes, keyboard->num_keycodes, &keyboard->modifiers);
+ wlr_seat_keyboard_notify_enter(seat,
+ view->xdg_surface->surface,
+ keyboard->keycodes,
+ keyboard->num_keycodes,
+ &keyboard->modifiers);
}
-static void keyboard_handle_modifiers(
- struct wl_listener *listener, void *data) {
+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 inaban_keyboard *keyboard =
- wl_container_of(listener, keyboard, modifiers);
+ struct inaban_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
@@ -144,10 +157,12 @@ static void keyboard_handle_modifiers(
wlr_seat_set_keyboard(keyboard->server->seat, keyboard->device);
/* Send modifiers to the client. */
wlr_seat_keyboard_notify_modifiers(keyboard->server->seat,
- &keyboard->device->keyboard->modifiers);
+ &keyboard->device->keyboard->modifiers);
}
-static bool handle_keybinding(struct inaban_server *server, xkb_keysym_t sym) {
+static bool
+handle_keybinding(struct inaban_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
@@ -155,77 +170,74 @@ static bool handle_keybinding(struct inaban_server *server, xkb_keysym_t sym) {
*
* This function assumes Alt is held down.
*/
- switch (sym) {
- case XKB_KEY_Escape:
- wl_display_terminate(server->wl_display);
- break;
+ switch(sym)
+ {
+ case XKB_KEY_Escape: wl_display_terminate(server->wl_display); break;
case XKB_KEY_F1:
/* Cycle to the next view */
- if (wl_list_length(&server->views) < 2) {
+ if(wl_list_length(&server->views) < 2)
+ {
break;
}
- struct inaban_view *current_view = wl_container_of(
- server->views.next, current_view, link);
- struct inaban_view *next_view = wl_container_of(
- current_view->link.next, next_view, link);
+ struct inaban_view *current_view = wl_container_of(server->views.next, current_view, link);
+ struct inaban_view *next_view = wl_container_of(current_view->link.next, next_view, link);
focus_view(next_view, next_view->xdg_surface->surface);
/* Move the previous view to the end of the list */
wl_list_remove(¤t_view->link);
wl_list_insert(server->views.prev, ¤t_view->link);
break;
- default:
- return false;
+ default: return false;
}
return true;
}
-static void keyboard_handle_key(
- struct wl_listener *listener, void *data) {
+static void
+keyboard_handle_key(struct wl_listener *listener, void *data)
+{
/* This event is raised when a key is pressed or released. */
- struct inaban_keyboard *keyboard =
- wl_container_of(listener, keyboard, key);
- struct inaban_server *server = keyboard->server;
+ struct inaban_keyboard *keyboard = wl_container_of(listener, keyboard, key);
+ struct inaban_server *server = keyboard->server;
struct wlr_event_keyboard_key *event = data;
- struct wlr_seat *seat = server->seat;
+ struct wlr_seat *seat = server->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->device->keyboard->xkb_state, keycode, &syms);
+ int nsyms = xkb_state_key_get_syms(keyboard->device->keyboard->xkb_state, keycode, &syms);
- bool handled = false;
+ bool handled = false;
uint32_t modifiers = wlr_keyboard_get_modifiers(keyboard->device->keyboard);
- if ((modifiers & WLR_MODIFIER_ALT) && event->state == WLR_KEY_PRESSED) {
+ if((modifiers & WLR_MODIFIER_ALT) && event->state == WLR_KEY_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++) {
+ for(int i = 0; i < nsyms; i++)
+ {
handled = handle_keybinding(server, syms[i]);
}
}
- if (!handled) {
+ if(!handled)
+ {
/* Otherwise, we pass it along to the client. */
wlr_seat_set_keyboard(seat, keyboard->device);
- wlr_seat_keyboard_notify_key(seat, event->time_msec,
- event->keycode, event->state);
+ wlr_seat_keyboard_notify_key(seat, event->time_msec, event->keycode, event->state);
}
}
-static void server_new_keyboard(struct inaban_server *server,
- struct wlr_input_device *device) {
- struct inaban_keyboard *keyboard =
- calloc(1, sizeof(struct inaban_keyboard));
- keyboard->server = server;
- keyboard->device = device;
+static void
+server_new_keyboard(struct inaban_server *server, struct wlr_input_device *device)
+{
+ struct inaban_keyboard *keyboard = calloc(1, sizeof(struct inaban_keyboard));
+ keyboard->server = server;
+ keyboard->device = device;
/* We need to prepare an XKB keymap and assign it to the keyboard. This
* assumes the defaults (e.g. layout = "us"). */
- struct xkb_rule_names rules = { 0 };
+ struct xkb_rule_names rules = {0};
struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
- struct xkb_keymap *keymap = xkb_map_new_from_names(context, &rules,
- XKB_KEYMAP_COMPILE_NO_FLAGS);
+ struct xkb_keymap *keymap = xkb_map_new_from_names(context, &rules, XKB_KEYMAP_COMPILE_NO_FLAGS);
wlr_keyboard_set_keymap(device->keyboard, keymap);
xkb_keymap_unref(keymap);
@@ -244,8 +256,9 @@ static void server_new_keyboard(struct inaban_server *server,
wl_list_insert(&server->keyboards, &keyboard->link);
}
-static void server_new_pointer(struct inaban_server *server,
- struct wlr_input_device *device) {
+static void
+server_new_pointer(struct inaban_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
@@ -253,54 +266,57 @@ static void server_new_pointer(struct inaban_server *server,
wlr_cursor_attach_input_device(server->cursor, device);
}
-static void server_new_input(struct wl_listener *listener, void *data) {
+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 inaban_server *server =
- wl_container_of(listener, server, new_input);
+ struct inaban_server *server = wl_container_of(listener, server, new_input);
struct wlr_input_device *device = data;
- switch (device->type) {
- case WLR_INPUT_DEVICE_KEYBOARD:
- server_new_keyboard(server, device);
- break;
- case WLR_INPUT_DEVICE_POINTER:
- server_new_pointer(server, device);
- break;
- default:
- break;
+ switch(device->type)
+ {
+ case WLR_INPUT_DEVICE_KEYBOARD: server_new_keyboard(server, device); break;
+ case WLR_INPUT_DEVICE_POINTER: server_new_pointer(server, device); break;
+ default: break;
}
/* We need to let the wlr_seat know what our capabilities are, which is
* communiciated to the client. In TinyWL 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(&server->keyboards)) {
+ if(!wl_list_empty(&server->keyboards))
+ {
caps |= WL_SEAT_CAPABILITY_KEYBOARD;
}
wlr_seat_set_capabilities(server->seat, caps);
}
-static void seat_request_cursor(struct wl_listener *listener, void *data) {
- struct inaban_server *server = wl_container_of(
- listener, server, request_cursor);
+static void
+seat_request_cursor(struct wl_listener *listener, void *data)
+{
+ struct inaban_server *server = wl_container_of(listener, server, request_cursor);
/* This event is rasied 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 =
- server->seat->pointer_state.focused_client;
+ struct wlr_seat_client *focused_client = server->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) {
+ 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(server->cursor, event->surface,
- event->hotspot_x, event->hotspot_y);
+ wlr_cursor_set_surface(server->cursor, event->surface, event->hotspot_x, event->hotspot_y);
}
}
-static bool view_at(struct inaban_view *view,
- double lx, double ly, struct wlr_surface **surface,
- double *sx, double *sy) {
+static bool
+view_at(struct inaban_view *view,
+ double lx,
+ double ly,
+ struct wlr_surface **surface,
+ double *sx,
+ double *sy)
+{
/*
* XDG toplevels may have nested surfaces, such as popup windows for context
* menus or tooltips. This function tests if any of those are underneath the
@@ -315,12 +331,12 @@ static bool view_at(struct inaban_view *view,
double _sx, _sy;
struct wlr_surface *_surface = NULL;
- _surface = wlr_xdg_surface_surface_at(
- view->xdg_surface, view_sx, view_sy, &_sx, &_sy);
+ _surface = wlr_xdg_surface_surface_at(view->xdg_surface, view_sx, view_sy, &_sx, &_sy);
- if (_surface != NULL) {
- *sx = _sx;
- *sy = _sy;
+ if(_surface != NULL)
+ {
+ *sx = _sx;
+ *sy = _sy;
*surface = _surface;
return true;
}
@@ -328,27 +344,38 @@ static bool view_at(struct inaban_view *view,
return false;
}
-static struct inaban_view *desktop_view_at(
- struct inaban_server *server, double lx, double ly,
- struct wlr_surface **surface, double *sx, double *sy) {
+static struct inaban_view *
+desktop_view_at(struct inaban_server *server,
+ double lx,
+ double ly,
+ struct wlr_surface **surface,
+ double *sx,
+ double *sy)
+{
/* This iterates over all of our surfaces and attempts to find one under the
* cursor. This relies on server->views being ordered from top-to-bottom. */
struct inaban_view *view;
- wl_list_for_each(view, &server->views, link) {
- if (view_at(view, lx, ly, surface, sx, sy)) {
+ wl_list_for_each(view, &server->views, link)
+ {
+ if(view_at(view, lx, ly, surface, sx, sy))
+ {
return view;
}
}
return NULL;
}
-static void process_cursor_move(struct inaban_server *server, uint32_t time) {
+static void
+process_cursor_move(struct inaban_server *server, uint32_t time)
+{
/* Move the grabbed view to the new position. */
server->grabbed_view->x = server->cursor->x - server->grab_x;
server->grabbed_view->y = server->cursor->y - server->grab_y;
}
-static void process_cursor_resize(struct inaban_server *server, uint32_t time) {
+static void
+process_cursor_resize(struct inaban_server *server, uint32_t time)
+{
/*
* Resizing the grabbed view can be a little bit complicated, because we
* could be resizing from any corner or edge. This not only resizes the view
@@ -360,28 +387,36 @@ static void process_cursor_resize(struct inaban_server *server, uint32_t time) {
* commit any movement that was prepared.
*/
struct inaban_view *view = server->grabbed_view;
- double dx = server->cursor->x - server->grab_x;
- double dy = server->cursor->y - server->grab_y;
- double x = view->x;
- double y = view->y;
- int width = server->grab_width;
- int height = server->grab_height;
- if (server->resize_edges & WLR_EDGE_TOP) {
+ double dx = server->cursor->x - server->grab_x;
+ double dy = server->cursor->y - server->grab_y;
+ double x = view->x;
+ double y = view->y;
+ int width = server->grab_width;
+ int height = server->grab_height;
+ if(server->resize_edges & WLR_EDGE_TOP)
+ {
y = server->grab_y + dy;
height -= dy;
- if (height < 1) {
+ if(height < 1)
+ {
y += height;
}
- } else if (server->resize_edges & WLR_EDGE_BOTTOM) {
+ }
+ else if(server->resize_edges & WLR_EDGE_BOTTOM)
+ {
height += dy;
}
- if (server->resize_edges & WLR_EDGE_LEFT) {
+ if(server->resize_edges & WLR_EDGE_LEFT)
+ {
x = server->grab_x + dx;
width -= dx;
- if (width < 1) {
+ if(width < 1)
+ {
x += width;
}
- } else if (server->resize_edges & WLR_EDGE_RIGHT) {
+ }
+ else if(server->resize_edges & WLR_EDGE_RIGHT)
+ {
width += dx;
}
view->x = x;
@@ -389,30 +424,36 @@ static void process_cursor_resize(struct inaban_server *server, uint32_t time) {
wlr_xdg_toplevel_set_size(view->xdg_surface, width, height);
}
-static void process_cursor_motion(struct inaban_server *server, uint32_t time) {
+static void
+process_cursor_motion(struct inaban_server *server, uint32_t time)
+{
/* If the mode is non-passthrough, delegate to those functions. */
- if (server->cursor_mode == INABAN_CURSOR_MOVE) {
+ if(server->cursor_mode == INABAN_CURSOR_MOVE)
+ {
process_cursor_move(server, time);
return;
- } else if (server->cursor_mode == INABAN_CURSOR_RESIZE) {
+ }
+ else if(server->cursor_mode == INABAN_CURSOR_RESIZE)
+ {
process_cursor_resize(server, time);
return;
}
/* Otherwise, find the view under the pointer and send the event along. */
double sx, sy;
- struct wlr_seat *seat = server->seat;
+ struct wlr_seat *seat = server->seat;
struct wlr_surface *surface = NULL;
- struct inaban_view *view = desktop_view_at(server,
- server->cursor->x, server->cursor->y, &surface, &sx, &sy);
- if (!view) {
+ struct inaban_view *view =
+ desktop_view_at(server, server->cursor->x, server->cursor->y, &surface, &sx, &sy);
+ if(!view)
+ {
/* If there's no view 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 views. */
- wlr_xcursor_manager_set_cursor_image(
- server->cursor_mgr, "left_ptr", server->cursor);
+ wlr_xcursor_manager_set_cursor_image(server->cursor_mgr, "left_ptr", server->cursor);
}
- if (surface) {
+ if(surface)
+ {
bool focus_changed = seat->pointer_state.focused_surface != surface;
/*
* "Enter" the surface if necessary. This lets the client know that the
@@ -423,109 +464,122 @@ static void process_cursor_motion(struct inaban_server *server, uint32_t time) {
* a window.
*/
wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
- if (!focus_changed) {
+ if(!focus_changed)
+ {
/* The enter event contains coordinates, so we only need to notify
* on motion if the focus did not change. */
wlr_seat_pointer_notify_motion(seat, time, sx, sy);
}
- } else {
+ }
+ 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) {
+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 inaban_server *server =
- wl_container_of(listener, server, cursor_motion);
+ struct inaban_server *server = wl_container_of(listener, server, cursor_motion);
struct wlr_event_pointer_motion *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(server->cursor, event->device,
- event->delta_x, event->delta_y);
+ wlr_cursor_move(server->cursor, event->device, event->delta_x, event->delta_y);
process_cursor_motion(server, event->time_msec);
}
-static void server_cursor_motion_absolute(
- struct wl_listener *listener, void *data) {
+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 inaban_server *server =
- wl_container_of(listener, server, cursor_motion_absolute);
+ struct inaban_server *server = wl_container_of(listener, server, cursor_motion_absolute);
struct wlr_event_pointer_motion_absolute *event = data;
wlr_cursor_warp_absolute(server->cursor, event->device, event->x, event->y);
process_cursor_motion(server, event->time_msec);
}
-static void server_cursor_button(struct wl_listener *listener, void *data) {
+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 inaban_server *server =
- wl_container_of(listener, server, cursor_button);
+ struct inaban_server *server = wl_container_of(listener, server, cursor_button);
struct wlr_event_pointer_button *event = data;
/* Notify the client with pointer focus that a button press has occurred */
- wlr_seat_pointer_notify_button(server->seat,
- event->time_msec, event->button, event->state);
+ wlr_seat_pointer_notify_button(server->seat, event->time_msec, event->button, event->state);
double sx, sy;
struct wlr_seat *seat = server->seat;
struct wlr_surface *surface;
- struct inaban_view *view = desktop_view_at(server,
- server->cursor->x, server->cursor->y, &surface, &sx, &sy);
- if (event->state == WLR_BUTTON_RELEASED) {
+ struct inaban_view *view =
+ desktop_view_at(server, server->cursor->x, server->cursor->y, &surface, &sx, &sy);
+ if(event->state == WLR_BUTTON_RELEASED)
+ {
/* If you released any buttons, we exit interactive move/resize mode. */
server->cursor_mode = INABAN_CURSOR_PASSTHROUGH;
- } else {
+ }
+ else
+ {
/* Focus that client if the button was _pressed_ */
focus_view(view, surface);
}
}
-static void server_cursor_axis(struct wl_listener *listener, void *data) {
+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 inaban_server *server =
- wl_container_of(listener, server, cursor_axis);
+ struct inaban_server *server = wl_container_of(listener, server, cursor_axis);
struct wlr_event_pointer_axis *event = data;
/* Notify the client with pointer focus of the axis event. */
wlr_seat_pointer_notify_axis(server->seat,
- event->time_msec, event->orientation, event->delta,
- event->delta_discrete, event->source);
+ event->time_msec,
+ event->orientation,
+ event->delta,
+ event->delta_discrete,
+ event->source);
}
-static void server_cursor_frame(struct wl_listener *listener, void *data) {
+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 inaban_server *server =
- wl_container_of(listener, server, cursor_frame);
+ struct inaban_server *server = wl_container_of(listener, server, cursor_frame);
/* Notify the client with pointer focus of the frame event. */
wlr_seat_pointer_notify_frame(server->seat);
}
/* Used to move all of the data necessary to render a surface from the top-level
* frame handler to the per-surface render function. */
-struct render_data {
+struct render_data
+{
struct wlr_output *output;
struct wlr_renderer *renderer;
struct inaban_view *view;
struct timespec *when;
};
-static void render_surface(struct wlr_surface *surface,
- int sx, int sy, void *data) {
+static void
+render_surface(struct wlr_surface *surface, int sx, int sy, void *data)
+{
/* This function is called for every surface that needs to be rendered. */
struct render_data *rdata = data;
- struct inaban_view *view = rdata->view;
+ struct inaban_view *view = rdata->view;
struct wlr_output *output = rdata->output;
/* We first obtain a wlr_texture, which is a GPU resource. wlroots
@@ -534,7 +588,8 @@ static void render_surface(struct wlr_surface *surface,
* could have sent a pixel buffer which we copied to the GPU, or a few other
* means. You don't have to worry about this, wlroots takes care of it. */
struct wlr_texture *texture = wlr_surface_get_texture(surface);
- if (texture == NULL) {
+ if(texture == NULL)
+ {
return;
}
@@ -543,17 +598,16 @@ static void render_surface(struct wlr_surface *surface,
* have layout coordinates of 2000,100. We need to translate that to
* output-local coordinates, or (2000 - 1920). */
double ox = 0, oy = 0;
- wlr_output_layout_output_coords(
- view->server->output_layout, output, &ox, &oy);
+ wlr_output_layout_output_coords(view->server->output_layout, output, &ox, &oy);
ox += view->x + sx, oy += view->y + sy;
/* We also have to apply the scale factor for HiDPI outputs. This is only
* part of the puzzle, TinyWL does not fully support HiDPI. */
struct wlr_box box = {
- .x = ox * output->scale,
- .y = oy * output->scale,
- .width = surface->current.width * output->scale,
- .height = surface->current.height * output->scale,
+ .x = ox * output->scale,
+ .y = oy * output->scale,
+ .width = surface->current.width * output->scale,
+ .height = surface->current.height * output->scale,
};
/*
@@ -568,10 +622,8 @@ static void render_surface(struct wlr_surface *surface,
* compositor.
*/
float matrix[9];
- enum wl_output_transform transform =
- wlr_output_transform_invert(surface->current.transform);
- wlr_matrix_project_box(matrix, &box, transform, 0,
- output->transform_matrix);
+ enum wl_output_transform transform = wlr_output_transform_invert(surface->current.transform);
+ wlr_matrix_project_box(matrix, &box, transform, 0, output->transform_matrix);
/* This takes our matrix, the texture, and an alpha, and performs the actual
* rendering on the GPU. */
@@ -582,18 +634,20 @@ static void render_surface(struct wlr_surface *surface,
wlr_surface_send_frame_done(surface, rdata->when);
}
-static void output_frame(struct wl_listener *listener, void *data) {
+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 inaban_output *output =
- wl_container_of(listener, output, frame);
+ struct inaban_output *output = wl_container_of(listener, output, frame);
struct wlr_renderer *renderer = output->server->renderer;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
/* wlr_output_attach_render makes the OpenGL context current. */
- if (!wlr_output_attach_render(output->wlr_output, NULL)) {
+ if(!wlr_output_attach_render(output->wlr_output, NULL))
+ {
return;
}
/* The "effective" resolution can change if you rotate your outputs. */
@@ -608,21 +662,22 @@ static void output_frame(struct wl_listener *listener, void *data) {
/* Each subsequent window we render is rendered on top of the last. Because
* our view list is ordered front-to-back, we iterate over it backwards. */
struct inaban_view *view;
- wl_list_for_each_reverse(view, &output->server->views, link) {
- if (!view->mapped) {
+ wl_list_for_each_reverse(view, &output->server->views, link)
+ {
+ if(!view->mapped)
+ {
/* An unmapped view should not be rendered. */
continue;
}
struct render_data rdata = {
- .output = output->wlr_output,
- .view = view,
- .renderer = renderer,
- .when = &now,
+ .output = output->wlr_output,
+ .view = view,
+ .renderer = renderer,
+ .when = &now,
};
/* This calls our render_surface function for each surface among the
* xdg_surface's toplevel and popups. */
- wlr_xdg_surface_for_each_surface(view->xdg_surface,
- render_surface, &rdata);
+ wlr_xdg_surface_for_each_surface(view->xdg_surface, render_surface, &rdata);
}
/* Hardware cursors are rendered by the GPU on a separate plane, and can be
@@ -639,11 +694,12 @@ static void output_frame(struct wl_listener *listener, void *data) {
wlr_output_commit(output->wlr_output);
}
-static void server_new_output(struct wl_listener *listener, void *data) {
+static void
+server_new_output(struct wl_listener *listener, void *data)
+{
/* This event is rasied by the backend when a new output (aka a display or
* monitor) becomes available. */
- struct inaban_server *server =
- wl_container_of(listener, server, new_output);
+ struct inaban_server *server = wl_container_of(listener, server, new_output);
struct wlr_output *wlr_output = data;
/* Some backends don't have modes. DRM+KMS does, and we need to set a mode
@@ -651,17 +707,16 @@ static void server_new_output(struct wl_listener *listener, void *data) {
* refresh rate), and each monitor supports only a specific set of modes. We
* just pick the first, a more sophisticated compositor would let the user
* configure it or pick the mode the display advertises as preferred. */
- if (!wl_list_empty(&wlr_output->modes)) {
- struct wlr_output_mode *mode =
- wl_container_of(wlr_output->modes.prev, mode, link);
+ if(!wl_list_empty(&wlr_output->modes))
+ {
+ struct wlr_output_mode *mode = wl_container_of(wlr_output->modes.prev, mode, link);
wlr_output_set_mode(wlr_output, mode);
}
/* Allocates and configures our state for this output */
- struct inaban_output *output =
- calloc(1, sizeof(struct inaban_output));
- output->wlr_output = wlr_output;
- output->server = server;
+ struct inaban_output *output = calloc(1, sizeof(struct inaban_output));
+ output->wlr_output = wlr_output;
+ output->server = server;
/* Sets up a listener for the frame notify event. */
output->frame.notify = output_frame;
wl_signal_add(&wlr_output->events.frame, &output->frame);
@@ -679,56 +734,67 @@ static void server_new_output(struct wl_listener *listener, void *data) {
wlr_output_create_global(wlr_output);
}
-static void xdg_surface_map(struct wl_listener *listener, void *data) {
+static void
+xdg_surface_map(struct wl_listener *listener, void *data)
+{
/* Called when the surface is mapped, or ready to display on-screen. */
struct inaban_view *view = wl_container_of(listener, view, map);
- view->mapped = true;
+ view->mapped = true;
focus_view(view, view->xdg_surface->surface);
}
-static void xdg_surface_unmap(struct wl_listener *listener, void *data) {
+static void
+xdg_surface_unmap(struct wl_listener *listener, void *data)
+{
/* Called when the surface is unmapped, and should no longer be shown. */
struct inaban_view *view = wl_container_of(listener, view, unmap);
- view->mapped = false;
+ view->mapped = false;
}
-static void xdg_surface_destroy(struct wl_listener *listener, void *data) {
+static void
+xdg_surface_destroy(struct wl_listener *listener, void *data)
+{
/* Called when the surface is destroyed and should never be shown again. */
struct inaban_view *view = wl_container_of(listener, view, destroy);
wl_list_remove(&view->link);
free(view);
}
-static void begin_interactive(struct inaban_view *view,
- enum inaban_cursor_mode mode, uint32_t edges) {
+static void
+begin_interactive(struct inaban_view *view, enum inaban_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 inaban_server *server = view->server;
- struct wlr_surface *focused_surface =
- server->seat->pointer_state.focused_surface;
- if (view->xdg_surface->surface != focused_surface) {
+ struct inaban_server *server = view->server;
+ struct wlr_surface *focused_surface = server->seat->pointer_state.focused_surface;
+ if(view->xdg_surface->surface != focused_surface)
+ {
/* Deny move/resize requests from unfocused clients. */
return;
}
server->grabbed_view = view;
- server->cursor_mode = mode;
+ server->cursor_mode = mode;
struct wlr_box geo_box;
wlr_xdg_surface_get_geometry(view->xdg_surface, &geo_box);
- if (mode == INABAN_CURSOR_MOVE) {
+ if(mode == INABAN_CURSOR_MOVE)
+ {
server->grab_x = server->cursor->x - view->x;
server->grab_y = server->cursor->y - view->y;
- } else {
+ }
+ else
+ {
server->grab_x = server->cursor->x + geo_box.x;
server->grab_y = server->cursor->y + geo_box.y;
}
- server->grab_width = geo_box.width;
- server->grab_height = geo_box.height;
+ server->grab_width = geo_box.width;
+ server->grab_height = geo_box.height;
server->resize_edges = edges;
}
-static void xdg_toplevel_request_move(
- struct wl_listener *listener, void *data) {
+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
@@ -738,33 +804,35 @@ static void xdg_toplevel_request_move(
begin_interactive(view, INABAN_CURSOR_MOVE, 0);
}
-static void xdg_toplevel_request_resize(
- struct wl_listener *listener, void *data) {
+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
* provied 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 inaban_view *view = wl_container_of(listener, view, request_resize);
+ struct inaban_view *view = wl_container_of(listener, view, request_resize);
begin_interactive(view, INABAN_CURSOR_RESIZE, event->edges);
}
-static void server_new_xdg_surface(struct wl_listener *listener, void *data) {
+static void
+server_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 inaban_server *server =
- wl_container_of(listener, server, new_xdg_surface);
+ struct inaban_server *server = wl_container_of(listener, server, new_xdg_surface);
struct wlr_xdg_surface *xdg_surface = data;
- if (xdg_surface->role != WLR_XDG_SURFACE_ROLE_TOPLEVEL) {
+ if(xdg_surface->role != WLR_XDG_SURFACE_ROLE_TOPLEVEL)
+ {
return;
}
/* Allocate a inaban_view for this surface */
- struct inaban_view *view =
- calloc(1, sizeof(struct inaban_view));
- view->server = server;
- view->xdg_surface = xdg_surface;
+ struct inaban_view *view = calloc(1, sizeof(struct inaban_view));
+ view->server = server;
+ view->xdg_surface = xdg_surface;
/* Listen to the various events it can emit */
view->map.notify = xdg_surface_map;
@@ -776,7 +844,7 @@ static void server_new_xdg_surface(struct wl_listener *listener, void *data) {
/* cotd */
struct wlr_xdg_toplevel *toplevel = xdg_surface->toplevel;
- view->request_move.notify = xdg_toplevel_request_move;
+ view->request_move.notify = xdg_toplevel_request_move;
wl_signal_add(&toplevel->events.request_move, &view->request_move);
view->request_resize.notify = xdg_toplevel_request_resize;
wl_signal_add(&toplevel->events.request_resize, &view->request_resize);
@@ -785,22 +853,23 @@ static void server_new_xdg_surface(struct wl_listener *listener, void *data) {
wl_list_insert(&server->views, &view->link);
}
-int main(int argc, char *argv[]) {
+int
+main(int argc, char *argv[])
+{
wlr_log_init(WLR_DEBUG, NULL);
char *startup_cmd = NULL;
int c;
- while ((c = getopt(argc, argv, "s:h")) != -1) {
- switch (c) {
- case 's':
- startup_cmd = optarg;
- break;
- default:
- printf("Usage: %s [-s startup command]\n", argv[0]);
- return 0;
+ while((c = getopt(argc, argv, "s:h")) != -1)
+ {
+ switch(c)
+ {
+ case 's': startup_cmd = optarg; break;
+ default: printf("Usage: %s [-s startup command]\n", argv[0]); return 0;
}
}
- if (optind < argc) {
+ if(optind < argc)
+ {
printf("Usage: %s [-s startup command]\n", argv[0]);
return 0;
}
@@ -849,10 +918,9 @@ int main(int argc, char *argv[]) {
* https://drewdevault.com/2018/07/29/Wayland-shells.html
*/
wl_list_init(&server.views);
- server.xdg_shell = wlr_xdg_shell_create(server.wl_display);
+ server.xdg_shell = wlr_xdg_shell_create(server.wl_display);
server.new_xdg_surface.notify = server_new_xdg_surface;
- wl_signal_add(&server.xdg_shell->events.new_surface,
- &server.new_xdg_surface);
+ wl_signal_add(&server.xdg_shell->events.new_surface, &server.new_xdg_surface);
/*
* Creates a cursor, which is a wlroots utility for tracking the cursor
@@ -883,8 +951,7 @@ int main(int argc, char *argv[]) {
server.cursor_motion.notify = server_cursor_motion;
wl_signal_add(&server.cursor->events.motion, &server.cursor_motion);
server.cursor_motion_absolute.notify = server_cursor_motion_absolute;
- wl_signal_add(&server.cursor->events.motion_absolute,
- &server.cursor_motion_absolute);
+ wl_signal_add(&server.cursor->events.motion_absolute, &server.cursor_motion_absolute);
server.cursor_button.notify = server_cursor_button;
wl_signal_add(&server.cursor->events.button, &server.cursor_button);
server.cursor_axis.notify = server_cursor_axis;
@@ -901,21 +968,22 @@ int main(int argc, char *argv[]) {
wl_list_init(&server.keyboards);
server.new_input.notify = server_new_input;
wl_signal_add(&server.backend->events.new_input, &server.new_input);
- server.seat = wlr_seat_create(server.wl_display, "seat0");
+ server.seat = wlr_seat_create(server.wl_display, "seat0");
server.request_cursor.notify = seat_request_cursor;
- wl_signal_add(&server.seat->events.request_set_cursor,
- &server.request_cursor);
+ wl_signal_add(&server.seat->events.request_set_cursor, &server.request_cursor);
/* Add a Unix socket to the Wayland display. */
const char *socket = wl_display_add_socket_auto(server.wl_display);
- if (!socket) {
+ if(!socket)
+ {
wlr_backend_destroy(server.backend);
return 1;
}
/* Start the backend. This will enumerate outputs and inputs, become the DRM
* master, etc */
- if (!wlr_backend_start(server.backend)) {
+ if(!wlr_backend_start(server.backend))
+ {
wlr_backend_destroy(server.backend);
wl_display_destroy(server.wl_display);
return 1;
@@ -924,8 +992,10 @@ int main(int argc, char *argv[]) {
/* Set the WAYLAND_DISPLAY environment variable to our socket and run the
* startup command if requested. */
setenv("WAYLAND_DISPLAY", socket, true);
- if (startup_cmd) {
- if (fork() == 0) {
+ if(startup_cmd)
+ {
+ if(fork() == 0)
+ {
execl("/bin/sh", "/bin/sh", "-c", startup_cmd, (void *)NULL);
}
}
@@ -933,8 +1003,7 @@ int main(int argc, char *argv[]) {
* compositor. Starting the backend rigged up all of the necessary event
* loop configuration to listen to libinput events, DRM events, generate
* frame events at the refresh rate, and so on. */
- wlr_log(WLR_INFO, "Running Wayland compositor on WAYLAND_DISPLAY=%s",
- socket);
+ wlr_log(WLR_INFO, "Running Wayland compositor on WAYLAND_DISPLAY=%s", socket);
wl_display_run(server.wl_display);
/* Once wl_display_run returns, we shut down the server. */
