#include <stdio.h>
#include <stdlib.h>
#include <search.h>
+#include <string.h>
#include <xcb/xcb.h>
#include <xcb/xcb_event.h>
struct win_sys {
xcb_window_t xcb; // xcb window id
xcb_event_mask_t events; // currently watch events
- int override; // normal vs override redirect
- int mapped; // window is currently mapped
+ int managed; // window is managed by wm
};
+typedef enum {
+ CLR_FOCUS,
+ CLR_UNFOCUS,
+ CLR_URGENT,
+ NCOLORS
+} color_t;
+
/* Global data */
static xcb_connection_t *conn;
static xcb_key_symbols_t *keysyms;
+static xcb_colormap_t colormap;
static xcb_window_t root;
static xcb_event_mask_t events;
static list_t *screens;
static void *cache;
-
+static xcb_pixmap_t colors[NCOLORS];
+static unsigned int grabbed;
/************************
* Conversion functions *
************************/
+/* State names */
+static char *state_map[] = {
+ [ST_HIDE ] "hide ",
+ [ST_SHOW ] "show ",
+ [ST_FULL ] "full ",
+ [ST_MAX ] "max ",
+ [ST_SHADE] "shade",
+ [ST_ICON ] "icon ",
+ [ST_CLOSE] "close",
+};
+
/* Key presses */
static struct {
event_t ev;
{ EV_F12, 0xFFC9 },
};
+/************************
+ * Conversion functions *
+ ************************/
+
static xcb_keycode_t *event_to_keycodes(event_t ev)
{
xcb_keycode_t *codes = NULL;
static ptr_t list_to_ptr(int16_t *list)
{
ptr_t ptr = {};
- ptr.rx = list[0]; // root_x
- ptr.ry = list[1]; // root_y
- ptr.x = list[2]; // event_x
- ptr.y = list[3]; // event_y
+ if (list) {
+ ptr.rx = list[0]; // root_x
+ ptr.ry = list[1]; // root_y
+ ptr.x = list[2]; // event_x
+ ptr.y = list[3]; // event_y
+ }
return ptr;
}
return ninfo;
}
+static int do_get_input_focus(void)
+{
+ xcb_get_input_focus_cookie_t cookie =
+ xcb_get_input_focus(conn);
+ if (!cookie.sequence)
+ return warn("do_get_input_focus: bad cookie");
+
+ xcb_get_input_focus_reply_t *reply =
+ xcb_get_input_focus_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_get_input_focus: no reply");
+
+ return reply->focus;
+}
+
+static xcb_pixmap_t do_alloc_color(uint32_t rgb)
+{
+ uint16_t r = (rgb & 0xFF0000) >> 8;
+ uint16_t g = (rgb & 0x00FF00);
+ uint16_t b = (rgb & 0x0000FF) << 8;
+ xcb_alloc_color_cookie_t cookie =
+ xcb_alloc_color(conn, colormap, r, g, b);
+ if (!cookie.sequence)
+ return warn("do_alloc_color: bad cookie");
+
+ xcb_alloc_color_reply_t *reply =
+ xcb_alloc_color_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_alloc_color: no reply");
+
+ printf("do_alloc_color: %06x -> %06x\n", rgb, reply->pixel);
+ return reply->pixel;
+}
+
+static void do_grab_pointer(xcb_event_mask_t mask)
+{
+ if (!grabbed)
+ xcb_grab_pointer(conn, 0, root, mask,
+ XCB_GRAB_MODE_ASYNC,
+ XCB_GRAB_MODE_ASYNC,
+ 0, 0, XCB_CURRENT_TIME);
+ grabbed++;
+}
+
+static void do_ungrab_pointer(void)
+{
+ grabbed--;
+ if (!grabbed)
+ xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
+}
+
+static void do_configure_window(xcb_window_t win,
+ int x, int y, int w, int h,
+ int b, int s, int r)
+{
+ int table[][2] = {
+ { x, XCB_CONFIG_WINDOW_X },
+ { y, XCB_CONFIG_WINDOW_Y },
+ { w, XCB_CONFIG_WINDOW_WIDTH },
+ { h, XCB_CONFIG_WINDOW_HEIGHT },
+ { b, XCB_CONFIG_WINDOW_BORDER_WIDTH },
+ { s, XCB_CONFIG_WINDOW_SIBLING },
+ { r, XCB_CONFIG_WINDOW_STACK_MODE },
+ };
+
+ uint16_t mask = 0;
+ uint32_t list[7] = {};
+ for (int i = 0; i < 7; i++) {
+ if (table[i][0] >= 0) {
+ list[i] = table[i][0];
+ mask |= table[i][1];
+ }
+ }
+
+ xcb_configure_window(conn, win, mask, list);
+}
+
+/**************************
+ * Window Manager Helpers *
+ **************************/
+
+/* Send event info */
+static int send_event(event_t ev, xcb_window_t ewin)
+{
+ win_t *win = win_get(ewin);
+ do_grab_pointer(0);
+ int status = wm_handle_event(win, ev, MOD(), PTR());
+ do_ungrab_pointer();
+ return status;
+}
+
+/* Send event info */
+static int send_event_info(event_t ev, xcb_mod_mask_t mask, int up, int16_t *pos,
+ xcb_window_t rwin, xcb_window_t ewin, xcb_window_t cwin)
+{
+ xcb_window_t xcb = ewin == rwin ? cwin : ewin;
+ win_t *win = win_get(xcb);
+ mod_t mod = mask_to_mod(mask, up);
+ ptr_t ptr = list_to_ptr(pos);
+ do_grab_pointer(0);
+ int status = wm_handle_event(win, ev, mod, ptr);
+ do_ungrab_pointer();
+ return status;
+}
+
+/* Send pointer motion info */
+static int send_pointer(int16_t *pos,
+ xcb_window_t rwin, xcb_window_t ewin, xcb_window_t cwin)
+{
+ xcb_window_t xcb = ewin == rwin ? cwin : ewin;
+ win_t *win = win_get(xcb);
+ ptr_t ptr = list_to_ptr(pos);
+ do_grab_pointer(0);
+ int status = wm_handle_ptr(win, ptr);
+ do_ungrab_pointer();
+ return status;
+}
+
+/* Send window state info */
+static void send_manage(win_t *win, int managed)
+{
+ if (win->sys->managed == managed)
+ return;
+ if (managed)
+ wm_insert(win);
+ else
+ wm_remove(win);
+ win->sys->managed = managed;
+}
+
+/* Send window state info */
+static void send_state(win_t *win, state_t next)
+{
+ if (!win->sys->managed)
+ return;
+ if (win->state == next)
+ return;
+ state_t prev = win->state;
+ win->state = next;
+ wm_handle_state(win, prev, next);
+}
+
/**********************
* X11 Event Handlers *
**********************/
/* Specific events */
static void on_key_event(xcb_key_press_event_t *event, int up)
{
- xcb_window_t xcb = event->event == root ?
- event->child : event->event;
- win_t *win = win_get(xcb);
- event_t ev = keycode_to_event(event->detail);
- mod_t mod = mask_to_mod(event->state, up);
- ptr_t ptr = list_to_ptr(&event->root_x);
- printf("on_key_event: xcb=%u -> win=%p\n", xcb, win);
- wm_handle_event(win, ev, mod, ptr);
+ printf("on_key_event: xcb=%-8u\n", event->event);
+ xcb_window_t focus = do_get_input_focus();
+ event_t ev = keycode_to_event(event->detail);
+ send_event_info(ev, event->state, up, &event->root_x,
+ event->root, focus, event->child);
}
static void on_button_event(xcb_button_press_event_t *event, int up)
{
- xcb_window_t xcb = event->event == root ?
- event->child : event->event;
- win_t *win = win_get(xcb);
- event_t ev = button_to_event(event->detail);
- mod_t mod = mask_to_mod(event->state, up);
- ptr_t ptr = list_to_ptr(&event->root_x);
- printf("on_button_event: xcb=%u -> win=%p\n", xcb, win);
-
- if (!wm_handle_event(win, ev, mod, ptr))
+ printf("on_button_event: xcb=%-8u\n", event->event);
+ event_t ev = button_to_event(event->detail);
+ if (!send_event_info(ev, event->state, up, &event->root_x,
+ event->root, event->event, event->child))
xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
else if (!up)
- xcb_grab_pointer(conn, 1, xcb,
- XCB_EVENT_MASK_POINTER_MOTION |
- XCB_EVENT_MASK_BUTTON_RELEASE,
- XCB_GRAB_MODE_ASYNC,
- XCB_GRAB_MODE_ASYNC,
- 0, 0, XCB_CURRENT_TIME);
+ do_grab_pointer(XCB_EVENT_MASK_POINTER_MOTION |
+ XCB_EVENT_MASK_BUTTON_RELEASE);
else
- xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
+ do_ungrab_pointer();
}
static void on_motion_notify(xcb_motion_notify_event_t *event)
{
- xcb_window_t xcb = event->event == root ?
- event->child : event->event;
- win_t *win = win_get(xcb);
- ptr_t ptr = list_to_ptr(&event->root_x);
- printf("on_motion_notify: xcb=%u -> win=%p - %d,%d / %d.%d\n", xcb, win,
- ptr.x, ptr.y, ptr.rx, ptr.ry);
- wm_handle_ptr(win, ptr);
+ printf("on_motion_notify: xcb=%-8u - %d,%d / %d.%d\n", event->event,
+ event->event_x, event->event_y,
+ event->root_x, event->root_y);
+ send_pointer(&event->root_x, event->root, event->event, event->child);
+}
+
+static void on_enter_notify(xcb_enter_notify_event_t *event)
+{
+ if (event->mode != XCB_NOTIFY_MODE_NORMAL)
+ return;
+ printf("on_enter_notify: xcb=%-8u\n", event->event);
+ send_event_info(EV_ENTER, event->state, 0, &event->root_x,
+ event->root, event->event, event->child);
+}
+
+static void on_leave_notify(xcb_leave_notify_event_t *event)
+{
+ if (event->mode != XCB_NOTIFY_MODE_NORMAL)
+ return;
+ printf("on_leave_notify: xcb=%-8u\n", event->event);
+ send_event_info(EV_LEAVE, event->state, 0, &event->root_x,
+ event->root, event->event, event->child);
+}
+
+static void on_focus_in(xcb_focus_in_event_t *event)
+{
+ if (event->mode != XCB_NOTIFY_MODE_NORMAL &&
+ event->mode != XCB_NOTIFY_MODE_WHILE_GRABBED)
+ return;
+ printf("on_focus_in: xcb=%-8u mode=%d\n", event->event, event->mode);
+ xcb_change_window_attributes(conn, event->event,
+ XCB_CW_BORDER_PIXEL, &colors[CLR_FOCUS]);
+ if (event->mode == XCB_NOTIFY_MODE_NORMAL)
+ send_event(EV_FOCUS, event->event);
+}
+
+static void on_focus_out(xcb_focus_out_event_t *event)
+{
+ if (event->mode != XCB_NOTIFY_MODE_NORMAL &&
+ event->mode != XCB_NOTIFY_MODE_WHILE_GRABBED)
+ return;
+ printf("on_focus_out: xcb=%-8u mode=%d\n", event->event, event->mode);
+ xcb_change_window_attributes(conn, event->event,
+ XCB_CW_BORDER_PIXEL, &colors[CLR_UNFOCUS]);
+ if (event->mode == XCB_NOTIFY_MODE_NORMAL)
+ send_event(EV_UNFOCUS, event->event);
}
static void on_create_notify(xcb_create_notify_event_t *event)
win_t *win = new0(win_t);
win_sys_t *sys = new0(win_sys_t);
- printf("on_create_notify: xcb=%u -> win=%p\n",
+ printf("on_create_notify: xcb=%-8u -> win=%p\n",
event->window, win);
win->x = event->x;
win->sys = sys;
sys->xcb = event->window;
- sys->override = event->override_redirect;
+
+ if (!event->override_redirect)
+ send_manage(win, 1);
tsearch(win, &cache, win_cmp);
}
-static void on_destroy_notify(win_t *win, xcb_destroy_notify_event_t *event)
+static void on_destroy_notify(xcb_destroy_notify_event_t *event)
{
- printf("on_destroy_notify: xcb=%u -> win=%p\n",
+ win_t *win = win_get(event->window);
+ printf("on_destroy_notify: xcb=%-8u -> win=%p\n",
event->window, win);
+ if (!win) return;
+
+ send_manage(win, 0);
tdelete(win, &cache, win_cmp);
free(win);
}
-static void on_map_request(win_t *win, xcb_map_request_event_t *event)
+static void on_map_request(xcb_map_request_event_t *event)
{
- printf("on_map_request: xcb=%u -> win=%p\n",
+ win_t *win = win_get(event->window);
+ printf("on_map_request: xcb=%-8u -> win=%p\n",
event->window, win);
+ if (!win) return;
- if (!win->sys->override && !win->sys->mapped)
- wm_insert(win);
- win->sys->mapped = 1;
-
+ send_state(win, ST_SHOW);
xcb_map_window(conn, win->sys->xcb);
sys_move(win, win->x, win->y, win->w, win->h);
}
-static void on_configure_request(win_t *win, xcb_configure_request_event_t *event)
+static void on_configure_request(xcb_configure_request_event_t *event)
{
- printf("on_configure_request: xcb=%u -> win=%p -- %dx%d @ %d,%d\n",
+ win_t *win = win_get(event->window);
+ printf("on_configure_request: xcb=%-8u -> win=%p -- %dx%d @ %d,%d\n",
event->window, win,
event->width, event->height,
event->x, event->y);
+ if (!win) return;
win->x = event->x;
win->y = event->y;
/* Generic Event */
static void on_event(xcb_generic_event_t *event)
{
- win_t *win = NULL;
-
int type = XCB_EVENT_RESPONSE_TYPE(event);
- int sent = XCB_EVENT_SENT(event);
- const char *name = NULL;
switch (type) {
/* Input handling */
case XCB_MOTION_NOTIFY:
on_motion_notify((xcb_motion_notify_event_t *)event);
break;
+ case XCB_ENTER_NOTIFY:
+ on_enter_notify((xcb_enter_notify_event_t *)event);
+ break;
+ case XCB_LEAVE_NOTIFY:
+ on_leave_notify((xcb_leave_notify_event_t *)event);
+ break;
+ case XCB_FOCUS_IN:
+ on_focus_in((xcb_focus_in_event_t *)event);
+ break;
+ case XCB_FOCUS_OUT:
+ on_focus_out((xcb_focus_out_event_t *)event);
+ break;
/* Window management */
case XCB_CREATE_NOTIFY:
on_create_notify((xcb_create_notify_event_t *)event);
break;
case XCB_DESTROY_NOTIFY:
- if ((win = win_get(((xcb_destroy_notify_event_t *)event)->window)))
- on_destroy_notify(win, (xcb_destroy_notify_event_t *)event);
+ on_destroy_notify((xcb_destroy_notify_event_t *)event);
break;
case XCB_MAP_REQUEST:
- if ((win = win_get(((xcb_map_request_event_t *)event)->window)))
- on_map_request(win, (xcb_map_request_event_t *)event);
+ on_map_request((xcb_map_request_event_t *)event);
break;
case XCB_CONFIGURE_REQUEST:
- if ((win = win_get(((xcb_configure_request_event_t *)event)->window)))
- on_configure_request(win, (xcb_configure_request_event_t *)event);
+ on_configure_request((xcb_configure_request_event_t *)event);
break;
/* Unknown events */
default:
- name = xcb_event_get_label(type);
printf("on_event: %d:%02X -> %s\n",
- !!sent, type, name?:"unknown_event");
+ XCB_EVENT_SENT(event) != 0,
+ XCB_EVENT_RESPONSE_TYPE(event),
+ xcb_event_get_label(type) ?: "unknown_event");
break;
}
}
printf("sys_move: %p - %dx%d @ %d,%d\n",
win, w, h, x, y);
+ int b = 2*border;
+
win->x = x;
win->y = y;
- win->w = w;
- win->h = h;
-
- uint16_t mask = XCB_CONFIG_WINDOW_X
- | XCB_CONFIG_WINDOW_Y
- | XCB_CONFIG_WINDOW_WIDTH
- | XCB_CONFIG_WINDOW_HEIGHT;
- uint32_t list[] = {x, y, w, h};
+ win->w = MAX(w,1+b);
+ win->h = MAX(h,1+b);
+ w = MAX(w-b,1);
+ h = MAX(h-b,1);
- xcb_configure_window(conn, win->sys->xcb, mask, list);
+ do_configure_window(win->sys->xcb, x, y, w, h, -1, -1, -1);
}
void sys_raise(win_t *win)
{
printf("sys_raise: %p\n", win);
- xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, win->sys->xcb);
+
+ uint16_t mask = XCB_CONFIG_WINDOW_STACK_MODE;
+ uint32_t list = XCB_STACK_MODE_ABOVE;
+
+ xcb_configure_window(conn, win->sys->xcb, mask, &list);
}
void sys_focus(win_t *win)
{
printf("sys_focus: %p\n", win);
+ xcb_window_t xcb = win ? win->sys->xcb : root;
+
xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT,
- win->sys->xcb, XCB_CURRENT_TIME);
+ xcb, XCB_CURRENT_TIME);
}
void sys_show(win_t *win, state_t state)
{
- printf("sys_show: %p - %d\n", win, state);
+ printf("sys_show: %p - %s -> %s\n", win,
+ state_map[win->state], state_map[state]);
+ xcb_window_t xcb = win ? win->sys->xcb : root;
+
+ /* Find screen */
+ win_t *screen = NULL;
+ if (state == ST_FULL || state == ST_MAX) {
+ for (list_t *cur = screens; cur; cur = cur->next) {
+ screen = cur->data;
+ if (win->x >= screen->x && win->x <= screen->x+screen->w &&
+ win->y >= screen->y && win->y <= screen->y+screen->h)
+ break;
+ }
+ }
+
+ /* Change window state */
+ switch (state) {
+ case ST_HIDE:
+ xcb_unmap_window(conn, xcb);
+ break;
+
+ case ST_SHOW:
+ xcb_map_window(conn, xcb);
+ do_configure_window(xcb, win->x, win->y,
+ MAX(win->w - 2*border, 1),
+ MAX(win->h - 2*border, 1),
+ border, -1, -1);
+ break;
+
+ case ST_FULL:
+ xcb_map_window(conn, xcb);
+ do_configure_window(xcb, screen->x, screen->y, screen->w, screen->h,
+ 0, -1, XCB_STACK_MODE_ABOVE);
+ xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, xcb);
+ break;
+
+ case ST_MAX:
+ xcb_map_window(conn, xcb);
+ do_configure_window(xcb, screen->x, screen->y,
+ MAX(screen->w - 2*border, 1),
+ MAX(screen->h - 2*border, 1),
+ border, -1, XCB_STACK_MODE_ABOVE);
+ break;
+
+ case ST_SHADE:
+ xcb_map_window(conn, xcb);
+ do_configure_window(xcb, -1, -1, -1, stack,
+ border, -1, -1);
+ break;
+
+ case ST_ICON:
+ xcb_map_window(conn, xcb);
+ do_configure_window(xcb, -1, -1, 100, 100,
+ border, -1, -1);
+ break;
+
+ case ST_CLOSE:
+ xcb_kill_client(conn, xcb);
+ break;
+ }
+
+ /* Update state */
+ win->state = state;
}
void sys_watch(win_t *win, event_t ev, mod_t mod)
if (xcb_connection_has_error(conn))
error("xcb connection has errors");
+ /* Get root window */
+ const xcb_setup_t *setup = xcb_get_setup(conn);
+ xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
+ root = iter.data->root;
+ colormap = iter.data->default_colormap;
+
+ /* Setup for for ST_CLOSE */
+ xcb_set_close_down_mode(conn, XCB_CLOSE_DOWN_DESTROY_ALL);
+
/* Allocate key symbols */
if (!(keysyms = xcb_key_symbols_alloc(conn)))
error("cannot allocate key symbols");
- /* Get root window */
- const xcb_setup_t *setup = xcb_get_setup(conn);
- xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
- root = iter.data->root;
+ /* Read color information */
+ colors[CLR_FOCUS] = do_alloc_color(0xFF6060);
+ colors[CLR_UNFOCUS] = do_alloc_color(0xD8D8FF);
+ colors[CLR_URGENT] = do_alloc_color(0xFF0000);
/* Request substructure redirect */
xcb_void_cookie_t cookie;
xcb_window_t *kids = NULL;
int nkids = do_query_tree(root, &kids);
for(int i = 0; i < nkids; i++) {
+ int override=0, mapped=0;
win_t *win = new0(win_t);
win->sys = new0(win_sys_t);
win->sys->xcb = kids[i];
- do_get_geometry(kids[i], &win->x, &win->y, &win->w, &win->h);
- do_get_window_attributes(kids[i],
- &win->sys->override, &win->sys->mapped);
tsearch(win, &cache, win_cmp);
- if (!win->sys->override && win->sys->mapped)
- wm_insert(win);
+ do_get_geometry(kids[i], &win->x, &win->y, &win->w, &win->h);
+ do_get_window_attributes(kids[i], &override, &mapped);
+ if (!override)
+ send_manage(win, 1);
+ if (mapped)
+ send_state(win, ST_SHOW);
}
xcb_flush(conn);
}