xwayland/window-manager.c

   1 /*
   2  * Copyright © 2011 Intel Corporation
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and
   5  * its documentation for any purpose is hereby granted without fee, provided
   6  * that the above copyright notice appear in all copies and that both that
   7  * copyright notice and this permission notice appear in supporting
   8  * documentation, and that the name of the copyright holders not be used in
   9  * advertising or publicity pertaining to distribution of the software
  10  * without specific, written prior permission.  The copyright holders make
  11  * no representations about the suitability of this software for any
  12  * purpose.  It is provided "as is" without express or implied warranty.
  13  *
  14  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
  15  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  16  * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
  17  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  18  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
  19  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  20  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  21  */
  22
  23 #include "config.h"
  24
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27 #include <string.h>
  28 #include <sys/socket.h>
  29 #include <sys/un.h>
  30 #include <fcntl.h>
  31 #include <errno.h>
  32 #include <unistd.h>
  33 #include <signal.h>
  34 #include <X11/Xcursor/Xcursor.h>
  35 #include <linux/input.h>
  36
  37 #include "xwayland.h"
  38
  39 #include "cairo-util.h"
  40 #include "compositor.h"
  41 #include "hash.h"
  42
  43 struct wm_size_hints {
  44         uint32_t flags;
  45         int32_t x, y;
  46         int32_t width, height;  /* should set so old wm's don't mess up */
  47         int32_t min_width, min_height;
  48         int32_t max_width, max_height;
  49         int32_t width_inc, height_inc;
  50         struct {
  51                 int32_t x;
  52                 int32_t y;
  53         } min_aspect, max_aspect;
  54         int32_t base_width, base_height;
  55         int32_t win_gravity;
  56 };
  57
  58 #define USPosition      (1L << 0)
  59 #define USSize          (1L << 1)
  60 #define PPosition       (1L << 2)
  61 #define PSize           (1L << 3)
  62 #define PMinSize        (1L << 4)
  63 #define PMaxSize        (1L << 5)
  64 #define PResizeInc      (1L << 6)
  65 #define PAspect         (1L << 7)
  66 #define PBaseSize       (1L << 8)
  67 #define PWinGravity     (1L << 9)
  68
  69 struct motif_wm_hints {
  70         uint32_t flags;
  71         uint32_t functions;
  72         uint32_t decorations;
  73         int32_t input_mode;
  74         uint32_t status;
  75 };
  76
  77 #define MWM_HINTS_FUNCTIONS     (1L << 0)
  78 #define MWM_HINTS_DECORATIONS   (1L << 1)
  79 #define MWM_HINTS_INPUT_MODE    (1L << 2)
  80 #define MWM_HINTS_STATUS        (1L << 3)
  81
  82 #define MWM_FUNC_ALL            (1L << 0)
  83 #define MWM_FUNC_RESIZE         (1L << 1)
  84 #define MWM_FUNC_MOVE           (1L << 2)
  85 #define MWM_FUNC_MINIMIZE       (1L << 3)
  86 #define MWM_FUNC_MAXIMIZE       (1L << 4)
  87 #define MWM_FUNC_CLOSE          (1L << 5)
  88
  89 #define MWM_DECOR_ALL           (1L << 0)
  90 #define MWM_DECOR_BORDER        (1L << 1)
  91 #define MWM_DECOR_RESIZEH       (1L << 2)
  92 #define MWM_DECOR_TITLE         (1L << 3)
  93 #define MWM_DECOR_MENU          (1L << 4)
  94 #define MWM_DECOR_MINIMIZE      (1L << 5)
  95 #define MWM_DECOR_MAXIMIZE      (1L << 6)
  96
  97 #define MWM_INPUT_MODELESS 0
  98 #define MWM_INPUT_PRIMARY_APPLICATION_MODAL 1
  99 #define MWM_INPUT_SYSTEM_MODAL 2
 100 #define MWM_INPUT_FULL_APPLICATION_MODAL 3
 101 #define MWM_INPUT_APPLICATION_MODAL MWM_INPUT_PRIMARY_APPLICATION_MODAL
 102
 103 #define MWM_TEAROFF_WINDOW      (1L<<0)
 104
 105 #define _NET_WM_MOVERESIZE_SIZE_TOPLEFT      0
 106 #define _NET_WM_MOVERESIZE_SIZE_TOP          1
 107 #define _NET_WM_MOVERESIZE_SIZE_TOPRIGHT     2
 108 #define _NET_WM_MOVERESIZE_SIZE_RIGHT        3
 109 #define _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT  4
 110 #define _NET_WM_MOVERESIZE_SIZE_BOTTOM       5
 111 #define _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT   6
 112 #define _NET_WM_MOVERESIZE_SIZE_LEFT         7
 113 #define _NET_WM_MOVERESIZE_MOVE              8   /* movement only */
 114 #define _NET_WM_MOVERESIZE_SIZE_KEYBOARD     9   /* size via keyboard */
 115 #define _NET_WM_MOVERESIZE_MOVE_KEYBOARD    10   /* move via keyboard */
 116 #define _NET_WM_MOVERESIZE_CANCEL           11   /* cancel operation */
 117
 118 struct weston_wm_window {
 119         struct weston_wm *wm;
 120         xcb_window_t id;
 121         xcb_window_t frame_id;
 122         struct frame *frame;
 123         cairo_surface_t *cairo_surface;
 124         uint32_t surface_id;
 125         struct weston_surface *surface;
 126         struct shell_surface *shsurf;
 127         struct weston_view *view;
 128         struct wl_listener surface_destroy_listener;
 129         struct wl_event_source *repaint_source;
 130         struct wl_event_source *configure_source;
 131         int properties_dirty;
 132         int pid;
 133         char *machine;
 134         char *class;
 135         char *name;
 136         struct weston_wm_window *transient_for;
 137         uint32_t protocols;
 138         xcb_atom_t type;
 139         int width, height;
 140         int x, y;
 141         int saved_width, saved_height;
 142         int decorate;
 143         int override_redirect;
 144         int fullscreen;
 145         int has_alpha;
 146         int delete_window;
 147         struct wm_size_hints size_hints;
 148         struct motif_wm_hints motif_hints;
 149         struct wl_list link;
 150 };
 151
 152 static struct weston_wm_window *
 153 get_wm_window(struct weston_surface *surface);
 154
 155 static void
 156 weston_wm_window_schedule_repaint(struct weston_wm_window *window);
 157
 158 static void
 159 xserver_map_shell_surface(struct weston_wm_window *window,
 160                           struct weston_surface *surface);
 161
 162 static int __attribute__ ((format (printf, 1, 2)))
 163 wm_log(const char *fmt, ...)
 164 {
 165 #ifdef WM_DEBUG
 166         int l;
 167         va_list argp;
 168
 169         va_start(argp, fmt);
 170         l = weston_vlog(fmt, argp);
 171         va_end(argp);
 172
 173         return l;
 174 #else
 175         return 0;
 176 #endif
 177 }
 178
 179 static int __attribute__ ((format (printf, 1, 2)))
 180 wm_log_continue(const char *fmt, ...)
 181 {
 182 #ifdef WM_DEBUG
 183         int l;
 184         va_list argp;
 185
 186         va_start(argp, fmt);
 187         l = weston_vlog_continue(fmt, argp);
 188         va_end(argp);
 189
 190         return l;
 191 #else
 192         return 0;
 193 #endif
 194 }
 195
 196
 197 const char *
 198 get_atom_name(xcb_connection_t *c, xcb_atom_t atom)
 199 {
 200         xcb_get_atom_name_cookie_t cookie;
 201         xcb_get_atom_name_reply_t *reply;
 202         xcb_generic_error_t *e;
 203         static char buffer[64];
 204
 205         if (atom == XCB_ATOM_NONE)
 206                 return "None";
 207
 208         cookie = xcb_get_atom_name (c, atom);
 209         reply = xcb_get_atom_name_reply (c, cookie, &e);
 210
 211         if(reply) {
 212                 snprintf(buffer, sizeof buffer, "%.*s",
 213                          xcb_get_atom_name_name_length (reply),
 214                          xcb_get_atom_name_name (reply));
 215         } else {
 216                 snprintf(buffer, sizeof buffer, "(atom %u)", atom);
 217         }
 218
 219         free(reply);
 220
 221         return buffer;
 222 }
 223
 224 static xcb_cursor_t
 225 xcb_cursor_image_load_cursor(struct weston_wm *wm, const XcursorImage *img)
 226 {
 227         xcb_connection_t *c = wm->conn;
 228         xcb_screen_iterator_t s = xcb_setup_roots_iterator(xcb_get_setup(c));
 229         xcb_screen_t *screen = s.data;
 230         xcb_gcontext_t gc;
 231         xcb_pixmap_t pix;
 232         xcb_render_picture_t pic;
 233         xcb_cursor_t cursor;
 234         int stride = img->width * 4;
 235
 236         pix = xcb_generate_id(c);
 237         xcb_create_pixmap(c, 32, pix, screen->root, img->width, img->height);
 238
 239         pic = xcb_generate_id(c);
 240         xcb_render_create_picture(c, pic, pix, wm->format_rgba.id, 0, 0);
 241
 242         gc = xcb_generate_id(c);
 243         xcb_create_gc(c, gc, pix, 0, 0);
 244
 245         xcb_put_image(c, XCB_IMAGE_FORMAT_Z_PIXMAP, pix, gc,
 246                       img->width, img->height, 0, 0, 0, 32,
 247                       stride * img->height, (uint8_t *) img->pixels);
 248         xcb_free_gc(c, gc);
 249
 250         cursor = xcb_generate_id(c);
 251         xcb_render_create_cursor(c, cursor, pic, img->xhot, img->yhot);
 252
 253         xcb_render_free_picture(c, pic);
 254         xcb_free_pixmap(c, pix);
 255
 256         return cursor;
 257 }
 258
 259 static xcb_cursor_t
 260 xcb_cursor_images_load_cursor(struct weston_wm *wm, const XcursorImages *images)
 261 {
 262         /* TODO: treat animated cursors as well */
 263         if (images->nimage != 1)
 264                 return -1;
 265
 266         return xcb_cursor_image_load_cursor(wm, images->images[0]);
 267 }
 268
 269 static xcb_cursor_t
 270 xcb_cursor_library_load_cursor(struct weston_wm *wm, const char *file)
 271 {
 272         xcb_cursor_t cursor;
 273         XcursorImages *images;
 274         char *v = NULL;
 275         int size = 0;
 276
 277         if (!file)
 278                 return 0;
 279
 280         v = getenv ("XCURSOR_SIZE");
 281         if (v)
 282                 size = atoi(v);
 283
 284         if (!size)
 285                 size = 32;
 286
 287         images = XcursorLibraryLoadImages (file, NULL, size);
 288         if (!images)
 289                 return -1;
 290
 291         cursor = xcb_cursor_images_load_cursor (wm, images);
 292         XcursorImagesDestroy (images);
 293
 294         return cursor;
 295 }
 296
 297 void
 298 dump_property(struct weston_wm *wm,
 299               xcb_atom_t property, xcb_get_property_reply_t *reply)
 300 {
 301         int32_t *incr_value;
 302         const char *text_value, *name;
 303         xcb_atom_t *atom_value;
 304         int width, len;
 305         uint32_t i;
 306
 307         width = wm_log_continue("%s: ", get_atom_name(wm->conn, property));
 308         if (reply == NULL) {
 309                 wm_log_continue("(no reply)\n");
 310                 return;
 311         }
 312
 313         width += wm_log_continue("%s/%d, length %d (value_len %d): ",
 314                                  get_atom_name(wm->conn, reply->type),
 315                                  reply->format,
 316                                  xcb_get_property_value_length(reply),
 317                                  reply->value_len);
 318
 319         if (reply->type == wm->atom.incr) {
 320                 incr_value = xcb_get_property_value(reply);
 321                 wm_log_continue("%d\n", *incr_value);
 322         } else if (reply->type == wm->atom.utf8_string ||
 323               reply->type == wm->atom.string) {
 324                 text_value = xcb_get_property_value(reply);
 325                 if (reply->value_len > 40)
 326                         len = 40;
 327                 else
 328                         len = reply->value_len;
 329                 wm_log_continue("\"%.*s\"\n", len, text_value);
 330         } else if (reply->type == XCB_ATOM_ATOM) {
 331                 atom_value = xcb_get_property_value(reply);
 332                 for (i = 0; i < reply->value_len; i++) {
 333                         name = get_atom_name(wm->conn, atom_value[i]);
 334                         if (width + strlen(name) + 2 > 78) {
 335                                 wm_log_continue("\n    ");
 336                                 width = 4;
 337                         } else if (i > 0) {
 338                                 width +=  wm_log_continue(", ");
 339                         }
 340
 341                         width +=  wm_log_continue("%s", name);
 342                 }
 343                 wm_log_continue("\n");
 344         } else {
 345                 wm_log_continue("huh?\n");
 346         }
 347 }
 348
 349 static void
 350 read_and_dump_property(struct weston_wm *wm,
 351                        xcb_window_t window, xcb_atom_t property)
 352 {
 353         xcb_get_property_reply_t *reply;
 354         xcb_get_property_cookie_t cookie;
 355
 356         cookie = xcb_get_property(wm->conn, 0, window,
 357                                   property, XCB_ATOM_ANY, 0, 2048);
 358         reply = xcb_get_property_reply(wm->conn, cookie, NULL);
 359
 360         dump_property(wm, property, reply);
 361
 362         free(reply);
 363 }
 364
 365 /* We reuse some predefined, but otherwise useles atoms */
 366 #define TYPE_WM_PROTOCOLS       XCB_ATOM_CUT_BUFFER0
 367 #define TYPE_MOTIF_WM_HINTS     XCB_ATOM_CUT_BUFFER1
 368 #define TYPE_NET_WM_STATE       XCB_ATOM_CUT_BUFFER2
 369 #define TYPE_WM_NORMAL_HINTS    XCB_ATOM_CUT_BUFFER3
 370
 371 static void
 372 weston_wm_window_read_properties(struct weston_wm_window *window)
 373 {
 374         struct weston_wm *wm = window->wm;
 375         struct weston_shell_interface *shell_interface =
 376                 &wm->server->compositor->shell_interface;
 377
 378 #define F(field) offsetof(struct weston_wm_window, field)
 379         const struct {
 380                 xcb_atom_t atom;
 381                 xcb_atom_t type;
 382                 int offset;
 383         } props[] = {
 384                 { XCB_ATOM_WM_CLASS, XCB_ATOM_STRING, F(class) },
 385                 { XCB_ATOM_WM_NAME, XCB_ATOM_STRING, F(name) },
 386                 { XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, F(transient_for) },
 387                 { wm->atom.wm_protocols, TYPE_WM_PROTOCOLS, F(protocols) },
 388                 { wm->atom.wm_normal_hints, TYPE_WM_NORMAL_HINTS, F(protocols) },
 389                 { wm->atom.net_wm_state, TYPE_NET_WM_STATE },
 390                 { wm->atom.net_wm_window_type, XCB_ATOM_ATOM, F(type) },
 391                 { wm->atom.net_wm_name, XCB_ATOM_STRING, F(name) },
 392                 { wm->atom.net_wm_pid, XCB_ATOM_CARDINAL, F(pid) },
 393                 { wm->atom.motif_wm_hints, TYPE_MOTIF_WM_HINTS, 0 },
 394                 { wm->atom.wm_client_machine, XCB_ATOM_WM_CLIENT_MACHINE, F(machine) },
 395         };
 396 #undef F
 397
 398         xcb_get_property_cookie_t cookie[ARRAY_LENGTH(props)];
 399         xcb_get_property_reply_t *reply;
 400         void *p;
 401         uint32_t *xid;
 402         xcb_atom_t *atom;
 403         uint32_t i;
 404
 405         if (!window->properties_dirty)
 406                 return;
 407         window->properties_dirty = 0;
 408
 409         for (i = 0; i < ARRAY_LENGTH(props); i++)
 410                 cookie[i] = xcb_get_property(wm->conn,
 411                                              0, /* delete */
 412                                              window->id,
 413                                              props[i].atom,
 414                                              XCB_ATOM_ANY, 0, 2048);
 415
 416         window->decorate = !window->override_redirect;
 417         window->size_hints.flags = 0;
 418         window->motif_hints.flags = 0;
 419         window->delete_window = 0;
 420
 421         for (i = 0; i < ARRAY_LENGTH(props); i++)  {
 422                 reply = xcb_get_property_reply(wm->conn, cookie[i], NULL);
 423                 if (!reply)
 424                         /* Bad window, typically */
 425                         continue;
 426                 if (reply->type == XCB_ATOM_NONE) {
 427                         /* No such property */
 428                         free(reply);
 429                         continue;
 430                 }
 431
 432                 p = ((char *) window + props[i].offset);
 433
 434                 switch (props[i].type) {
 435                 case XCB_ATOM_WM_CLIENT_MACHINE:
 436                 case XCB_ATOM_STRING:
 437                         /* FIXME: We're using this for both string and
 438                            utf8_string */
 439                         if (*(char **) p)
 440                                 free(*(char **) p);
 441
 442                         *(char **) p =
 443                                 strndup(xcb_get_property_value(reply),
 444                                         xcb_get_property_value_length(reply));
 445                         break;
 446                 case XCB_ATOM_WINDOW:
 447                         xid = xcb_get_property_value(reply);
 448                         *(struct weston_wm_window **) p =
 449                                 hash_table_lookup(wm->window_hash, *xid);
 450                         break;
 451                 case XCB_ATOM_CARDINAL:
 452                 case XCB_ATOM_ATOM:
 453                         atom = xcb_get_property_value(reply);
 454                         *(xcb_atom_t *) p = *atom;
 455                         break;
 456                 case TYPE_WM_PROTOCOLS:
 457                         atom = xcb_get_property_value(reply);
 458                         for (i = 0; i < reply->value_len; i++)
 459                                 if (atom[i] == wm->atom.wm_delete_window)
 460                                         window->delete_window = 1;
 461                         break;
 462
 463                         break;
 464                 case TYPE_WM_NORMAL_HINTS:
 465                         memcpy(&window->size_hints,
 466                                xcb_get_property_value(reply),
 467                                sizeof window->size_hints);
 468                         break;
 469                 case TYPE_NET_WM_STATE:
 470                         window->fullscreen = 0;
 471                         atom = xcb_get_property_value(reply);
 472                         for (i = 0; i < reply->value_len; i++)
 473                                 if (atom[i] == wm->atom.net_wm_state_fullscreen)
 474                                         window->fullscreen = 1;
 475                         break;
 476                 case TYPE_MOTIF_WM_HINTS:
 477                         memcpy(&window->motif_hints,
 478                                xcb_get_property_value(reply),
 479                                sizeof window->motif_hints);
 480                         if (window->motif_hints.flags & MWM_HINTS_DECORATIONS)
 481                                 window->decorate =
 482                                         window->motif_hints.decorations > 0;
 483                         break;
 484                 default:
 485                         break;
 486                 }
 487                 free(reply);
 488         }
 489
 490         if (window->shsurf && window->name)
 491                 shell_interface->set_title(window->shsurf, window->name);
 492         if (window->frame && window->name)
 493                 frame_set_title(window->frame, window->name);
 494 }
 495
 496 static void
 497 weston_wm_window_get_frame_size(struct weston_wm_window *window,
 498                                 int *width, int *height)
 499 {
 500         struct theme *t = window->wm->theme;
 501
 502         if (window->fullscreen) {
 503                 *width = window->width;
 504                 *height = window->height;
 505         } else if (window->decorate && window->frame) {
 506                 *width = frame_width(window->frame);
 507                 *height = frame_height(window->frame);
 508         } else {
 509                 *width = window->width + t->margin * 2;
 510                 *height = window->height + t->margin * 2;
 511         }
 512 }
 513
 514 static void
 515 weston_wm_window_get_child_position(struct weston_wm_window *window,
 516                                     int *x, int *y)
 517 {
 518         struct theme *t = window->wm->theme;
 519
 520         if (window->fullscreen) {
 521                 *x = 0;
 522                 *y = 0;
 523         } else if (window->decorate && window->frame) {
 524                 frame_interior(window->frame, x, y, NULL, NULL);
 525         } else {
 526                 *x = t->margin;
 527                 *y = t->margin;
 528         }
 529 }
 530
 531 static void
 532 weston_wm_window_send_configure_notify(struct weston_wm_window *window)
 533 {
 534         xcb_configure_notify_event_t configure_notify;
 535         struct weston_wm *wm = window->wm;
 536         int x, y;
 537
 538         weston_wm_window_get_child_position(window, &x, &y);
 539         configure_notify.response_type = XCB_CONFIGURE_NOTIFY;
 540         configure_notify.pad0 = 0;
 541         configure_notify.event = window->id;
 542         configure_notify.window = window->id;
 543         configure_notify.above_sibling = XCB_WINDOW_NONE;
 544         configure_notify.x = x;
 545         configure_notify.y = y;
 546         configure_notify.width = window->width;
 547         configure_notify.height = window->height;
 548         configure_notify.border_width = 0;
 549         configure_notify.override_redirect = 0;
 550         configure_notify.pad1 = 0;
 551
 552         xcb_send_event(wm->conn, 0, window->id,
 553                        XCB_EVENT_MASK_STRUCTURE_NOTIFY,
 554                        (char *) &configure_notify);
 555 }
 556
 557 static void
 558 weston_wm_handle_configure_request(struct weston_wm *wm, xcb_generic_event_t *event)
 559 {
 560         xcb_configure_request_event_t *configure_request =
 561                 (xcb_configure_request_event_t *) event;
 562         struct weston_wm_window *window;
 563         uint32_t mask, values[16];
 564         int x, y, width, height, i = 0;
 565
 566         wm_log("XCB_CONFIGURE_REQUEST (window %d) %d,%d @ %dx%d\n",
 567                configure_request->window,
 568                configure_request->x, configure_request->y,
 569                configure_request->width, configure_request->height);
 570
 571         window = hash_table_lookup(wm->window_hash, configure_request->window);
 572
 573         if (window->fullscreen) {
 574                 weston_wm_window_send_configure_notify(window);
 575                 return;
 576         }
 577
 578         if (configure_request->value_mask & XCB_CONFIG_WINDOW_WIDTH)
 579                 window->width = configure_request->width;
 580         if (configure_request->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
 581                 window->height = configure_request->height;
 582
 583         if (window->frame)
 584                 frame_resize_inside(window->frame, window->width, window->height);
 585
 586         weston_wm_window_get_child_position(window, &x, &y);
 587         values[i++] = x;
 588         values[i++] = y;
 589         values[i++] = window->width;
 590         values[i++] = window->height;
 591         values[i++] = 0;
 592         mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y |
 593                 XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT |
 594                 XCB_CONFIG_WINDOW_BORDER_WIDTH;
 595         if (configure_request->value_mask & XCB_CONFIG_WINDOW_SIBLING) {
 596                 values[i++] = configure_request->sibling;
 597                 mask |= XCB_CONFIG_WINDOW_SIBLING;
 598         }
 599         if (configure_request->value_mask & XCB_CONFIG_WINDOW_STACK_MODE) {
 600                 values[i++] = configure_request->stack_mode;
 601                 mask |= XCB_CONFIG_WINDOW_STACK_MODE;
 602         }
 603
 604         xcb_configure_window(wm->conn, window->id, mask, values);
 605
 606         weston_wm_window_get_frame_size(window, &width, &height);
 607         values[0] = width;
 608         values[1] = height;
 609         mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
 610         xcb_configure_window(wm->conn, window->frame_id, mask, values);
 611
 612         weston_wm_window_schedule_repaint(window);
 613 }
 614
 615 static int
 616 our_resource(struct weston_wm *wm, uint32_t id)
 617 {
 618         const xcb_setup_t *setup;
 619
 620         setup = xcb_get_setup(wm->conn);
 621
 622         return (id & ~setup->resource_id_mask) == setup->resource_id_base;
 623 }
 624
 625 static void
 626 weston_wm_handle_configure_notify(struct weston_wm *wm, xcb_generic_event_t *event)
 627 {
 628         xcb_configure_notify_event_t *configure_notify =
 629                 (xcb_configure_notify_event_t *) event;
 630         struct weston_wm_window *window;
 631
 632         wm_log("XCB_CONFIGURE_NOTIFY (window %d) %d,%d @ %dx%d\n",
 633                configure_notify->window,
 634                configure_notify->x, configure_notify->y,
 635                configure_notify->width, configure_notify->height);
 636
 637         window = hash_table_lookup(wm->window_hash, configure_notify->window);
 638         window->x = configure_notify->x;
 639         window->y = configure_notify->y;
 640         if (window->override_redirect) {
 641                 window->width = configure_notify->width;
 642                 window->height = configure_notify->height;
 643                 if (window->frame)
 644                         frame_resize_inside(window->frame,
 645                                             window->width, window->height);
 646         }
 647 }
 648
 649 static void
 650 weston_wm_kill_client(struct wl_listener *listener, void *data)
 651 {
 652         struct weston_surface *surface = data;
 653         struct weston_wm_window *window = get_wm_window(surface);
 654         char name[1024];
 655
 656         if (!window)
 657                 return;
 658
 659         gethostname(name, 1024);
 660
 661         /* this is only one heuristic to guess the PID of a client is valid,
 662          * assuming it's compliant with icccm and ewmh. Non-compliants and
 663          * remote applications of course fail. */
 664         if (!strcmp(window->machine, name) && window->pid != 0)
 665                 kill(window->pid, SIGKILL);
 666 }
 667
 668 static void
 669 weston_wm_create_surface(struct wl_listener *listener, void *data)
 670 {
 671         struct weston_surface *surface = data;
 672         struct weston_wm *wm =
 673                 container_of(listener,
 674                              struct weston_wm, create_surface_listener);
 675         struct weston_wm_window *window;
 676
 677         if (wl_resource_get_client(surface->resource) != wm->server->client)
 678                 return;
 679
 680         wl_list_for_each(window, &wm->unpaired_window_list, link)
 681                 if (window->surface_id ==
 682                     wl_resource_get_id(surface->resource)) {
 683                         xserver_map_shell_surface(window, surface);
 684                         window->surface_id = 0;
 685                         wl_list_remove(&window->link);
 686                         break;
 687                 }
 688 }
 689
 690 static void
 691 weston_wm_window_activate(struct wl_listener *listener, void *data)
 692 {
 693         struct weston_surface *surface = data;
 694         struct weston_wm_window *window = NULL;
 695         struct weston_wm *wm =
 696                 container_of(listener, struct weston_wm, activate_listener);
 697         xcb_client_message_event_t client_message;
 698
 699         if (surface) {
 700                 window = get_wm_window(surface);
 701         }
 702
 703         if (window) {
 704                 client_message.response_type = XCB_CLIENT_MESSAGE;
 705                 client_message.format = 32;
 706                 client_message.window = window->id;
 707                 client_message.type = wm->atom.wm_protocols;
 708                 client_message.data.data32[0] = wm->atom.wm_take_focus;
 709                 client_message.data.data32[1] = XCB_TIME_CURRENT_TIME;
 710
 711                 xcb_send_event(wm->conn, 0, window->id,
 712                                XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT,
 713                                (char *) &client_message);
 714
 715                 xcb_set_input_focus (wm->conn, XCB_INPUT_FOCUS_POINTER_ROOT,
 716                                      window->id, XCB_TIME_CURRENT_TIME);
 717         } else {
 718                 xcb_set_input_focus (wm->conn,
 719                                      XCB_INPUT_FOCUS_POINTER_ROOT,
 720                                      XCB_NONE,
 721                                      XCB_TIME_CURRENT_TIME);
 722         }
 723
 724         if (wm->focus_window) {
 725                 if (wm->focus_window->frame)
 726                         frame_unset_flag(wm->focus_window->frame, FRAME_FLAG_ACTIVE);
 727                 weston_wm_window_schedule_repaint(wm->focus_window);
 728         }
 729         wm->focus_window = window;
 730         if (wm->focus_window) {
 731                 if (wm->focus_window->frame)
 732                         frame_set_flag(wm->focus_window->frame, FRAME_FLAG_ACTIVE);
 733                 weston_wm_window_schedule_repaint(wm->focus_window);
 734         }
 735 }
 736
 737 static void
 738 weston_wm_window_transform(struct wl_listener *listener, void *data)
 739 {
 740         struct weston_surface *surface = data;
 741         struct weston_wm_window *window = get_wm_window(surface);
 742         struct weston_wm *wm =
 743                 container_of(listener, struct weston_wm, transform_listener);
 744         uint32_t mask, values[2];
 745
 746         if (!window || !wm)
 747                 return;
 748
 749         if (!window->view || !weston_view_is_mapped(window->view))
 750                 return;
 751
 752         if (window->x != window->view->geometry.x ||
 753             window->y != window->view->geometry.y) {
 754                 values[0] = window->view->geometry.x;
 755                 values[1] = window->view->geometry.y;
 756                 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y;
 757
 758                 xcb_configure_window(wm->conn, window->frame_id, mask, values);
 759                 xcb_flush(wm->conn);
 760         }
 761 }
 762
 763 #define ICCCM_WITHDRAWN_STATE   0
 764 #define ICCCM_NORMAL_STATE      1
 765 #define ICCCM_ICONIC_STATE      3
 766
 767 static void
 768 weston_wm_window_set_wm_state(struct weston_wm_window *window, int32_t state)
 769 {
 770         struct weston_wm *wm = window->wm;
 771         uint32_t property[2];
 772
 773         property[0] = state;
 774         property[1] = XCB_WINDOW_NONE;
 775
 776         xcb_change_property(wm->conn,
 777                             XCB_PROP_MODE_REPLACE,
 778                             window->id,
 779                             wm->atom.wm_state,
 780                             wm->atom.wm_state,
 781                             32, /* format */
 782                             2, property);
 783 }
 784
 785 static void
 786 weston_wm_window_set_net_wm_state(struct weston_wm_window *window)
 787 {
 788         struct weston_wm *wm = window->wm;
 789         uint32_t property[1];
 790         int i;
 791
 792         i = 0;
 793         if (window->fullscreen)
 794                 property[i++] = wm->atom.net_wm_state_fullscreen;
 795
 796         xcb_change_property(wm->conn,
 797                             XCB_PROP_MODE_REPLACE,
 798                             window->id,
 799                             wm->atom.net_wm_state,
 800                             XCB_ATOM_ATOM,
 801                             32, /* format */
 802                             i, property);
 803 }
 804
 805 static void
 806 weston_wm_window_create_frame(struct weston_wm_window *window)
 807 {
 808         struct weston_wm *wm = window->wm;
 809         uint32_t values[3];
 810         int x, y, width, height;
 811
 812         window->frame = frame_create(window->wm->theme,
 813                                      window->width, window->height,
 814                                      FRAME_BUTTON_CLOSE, window->name);
 815         frame_resize_inside(window->frame, window->width, window->height);
 816
 817         weston_wm_window_get_frame_size(window, &width, &height);
 818         weston_wm_window_get_child_position(window, &x, &y);
 819
 820         values[0] = wm->screen->black_pixel;
 821         values[1] =
 822                 XCB_EVENT_MASK_KEY_PRESS |
 823                 XCB_EVENT_MASK_KEY_RELEASE |
 824                 XCB_EVENT_MASK_BUTTON_PRESS |
 825                 XCB_EVENT_MASK_BUTTON_RELEASE |
 826                 XCB_EVENT_MASK_POINTER_MOTION |
 827                 XCB_EVENT_MASK_ENTER_WINDOW |
 828                 XCB_EVENT_MASK_LEAVE_WINDOW |
 829                 XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
 830                 XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT;
 831         values[2] = wm->colormap;
 832
 833         window->frame_id = xcb_generate_id(wm->conn);
 834         xcb_create_window(wm->conn,
 835                           32,
 836                           window->frame_id,
 837                           wm->screen->root,
 838                           0, 0,
 839                           width, height,
 840                           0,
 841                           XCB_WINDOW_CLASS_INPUT_OUTPUT,
 842                           wm->visual_id,
 843                           XCB_CW_BORDER_PIXEL |
 844                           XCB_CW_EVENT_MASK |
 845                           XCB_CW_COLORMAP, values);
 846
 847         xcb_reparent_window(wm->conn, window->id, window->frame_id, x, y);
 848
 849         values[0] = 0;
 850         xcb_configure_window(wm->conn, window->id,
 851                              XCB_CONFIG_WINDOW_BORDER_WIDTH, values);
 852
 853         window->cairo_surface =
 854                 cairo_xcb_surface_create_with_xrender_format(wm->conn,
 855                                                              wm->screen,
 856                                                              window->frame_id,
 857                                                              &wm->format_rgba,
 858                                                              width, height);
 859
 860         hash_table_insert(wm->window_hash, window->frame_id, window);
 861 }
 862
 863 static void
 864 weston_wm_handle_map_request(struct weston_wm *wm, xcb_generic_event_t *event)
 865 {
 866         xcb_map_request_event_t *map_request =
 867                 (xcb_map_request_event_t *) event;
 868         struct weston_wm_window *window;
 869
 870         if (our_resource(wm, map_request->window)) {
 871                 wm_log("XCB_MAP_REQUEST (window %d, ours)\n",
 872                        map_request->window);
 873                 return;
 874         }
 875
 876         window = hash_table_lookup(wm->window_hash, map_request->window);
 877
 878         weston_wm_window_read_properties(window);
 879
 880         if (window->frame_id == XCB_WINDOW_NONE)
 881                 weston_wm_window_create_frame(window);
 882
 883         wm_log("XCB_MAP_REQUEST (window %d, %p, frame %d)\n",
 884                window->id, window, window->frame_id);
 885
 886         weston_wm_window_set_wm_state(window, ICCCM_NORMAL_STATE);
 887         weston_wm_window_set_net_wm_state(window);
 888
 889         xcb_map_window(wm->conn, map_request->window);
 890         xcb_map_window(wm->conn, window->frame_id);
 891 }
 892
 893 static void
 894 weston_wm_handle_map_notify(struct weston_wm *wm, xcb_generic_event_t *event)
 895 {
 896         xcb_map_notify_event_t *map_notify = (xcb_map_notify_event_t *) event;
 897
 898         if (our_resource(wm, map_notify->window)) {
 899                 wm_log("XCB_MAP_NOTIFY (window %d, ours)\n",
 900                        map_notify->window);
 901                         return;
 902         }
 903
 904         wm_log("XCB_MAP_NOTIFY (window %d)\n", map_notify->window);
 905 }
 906
 907 static void
 908 weston_wm_handle_unmap_notify(struct weston_wm *wm, xcb_generic_event_t *event)
 909 {
 910         xcb_unmap_notify_event_t *unmap_notify =
 911                 (xcb_unmap_notify_event_t *) event;
 912         struct weston_wm_window *window;
 913
 914         wm_log("XCB_UNMAP_NOTIFY (window %d, event %d%s)\n",
 915                unmap_notify->window,
 916                unmap_notify->event,
 917                our_resource(wm, unmap_notify->window) ? ", ours" : "");
 918
 919         if (our_resource(wm, unmap_notify->window))
 920                 return;
 921
 922         if (unmap_notify->response_type & SEND_EVENT_MASK)
 923                 /* We just ignore the ICCCM 4.1.4 synthetic unmap notify
 924                  * as it may come in after we've destroyed the window. */
 925                 return;
 926
 927         window = hash_table_lookup(wm->window_hash, unmap_notify->window);
 928         if (wm->focus_window == window)
 929                 wm->focus_window = NULL;
 930         if (window->surface)
 931                 wl_list_remove(&window->surface_destroy_listener.link);
 932         window->surface = NULL;
 933         window->shsurf = NULL;
 934         window->view = NULL;
 935         xcb_unmap_window(wm->conn, window->frame_id);
 936 }
 937
 938 static void
 939 weston_wm_window_draw_decoration(void *data)
 940 {
 941         struct weston_wm_window *window = data;
 942         struct weston_wm *wm = window->wm;
 943         struct theme *t = wm->theme;
 944         cairo_t *cr;
 945         int x, y, width, height;
 946         int32_t input_x, input_y, input_w, input_h;
 947         struct weston_shell_interface *shell_interface =
 948                 &wm->server->compositor->shell_interface;
 949         uint32_t flags = 0;
 950
 951         weston_wm_window_read_properties(window);
 952
 953         window->repaint_source = NULL;
 954
 955         weston_wm_window_get_frame_size(window, &width, &height);
 956         weston_wm_window_get_child_position(window, &x, &y);
 957
 958         cairo_xcb_surface_set_size(window->cairo_surface, width, height);
 959         cr = cairo_create(window->cairo_surface);
 960
 961         if (window->fullscreen) {
 962                 /* nothing */
 963         } else if (window->decorate) {
 964                 if (wm->focus_window == window)
 965                         flags |= THEME_FRAME_ACTIVE;
 966
 967                 frame_repaint(window->frame, cr);
 968         } else {
 969                 cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
 970                 cairo_set_source_rgba(cr, 0, 0, 0, 0);
 971                 cairo_paint(cr);
 972
 973                 cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
 974                 cairo_set_source_rgba(cr, 0, 0, 0, 0.45);
 975                 tile_mask(cr, t->shadow, 2, 2, width + 8, height + 8, 64, 64);
 976         }
 977
 978         cairo_destroy(cr);
 979
 980         if (window->surface) {
 981                 pixman_region32_fini(&window->surface->pending.opaque);
 982                 if(window->has_alpha) {
 983                         pixman_region32_init(&window->surface->pending.opaque);
 984                 } else {
 985                         /* We leave an extra pixel around the X window area to
 986                          * make sure we don't sample from the undefined alpha
 987                          * channel when filtering. */
 988                         pixman_region32_init_rect(&window->surface->pending.opaque,
 989                                                   x - 1, y - 1,
 990                                                   window->width + 2,
 991                                                   window->height + 2);
 992                 }
 993                 if (window->view)
 994                         weston_view_geometry_dirty(window->view);
 995
 996                 pixman_region32_fini(&window->surface->pending.input);
 997
 998                 if (window->fullscreen) {
 999                         input_x = 0;
1000                         input_y = 0;
1001                         input_w = window->width;
1002                         input_h = window->height;
1003                 } else if (window->decorate) {
1004                         frame_input_rect(window->frame, &input_x, &input_y,
1005                                          &input_w, &input_h);
1006                 }
1007
1008                 pixman_region32_init_rect(&window->surface->pending.input,
1009                                           input_x, input_y, input_w, input_h);
1010
1011                 shell_interface->set_margin(window->shsurf,
1012                                             input_x,
1013                                             width - input_w - input_x,
1014                                             input_y,
1015                                             height - input_h - input_y);
1016         }
1017 }
1018
1019 static void
1020 weston_wm_window_schedule_repaint(struct weston_wm_window *window)
1021 {
1022         struct weston_wm *wm = window->wm;
1023         int width, height;
1024
1025         if (window->frame_id == XCB_WINDOW_NONE) {
1026                 if (window->surface != NULL) {
1027                         weston_wm_window_get_frame_size(window, &width, &height);
1028                         pixman_region32_fini(&window->surface->pending.opaque);
1029                         if(window->has_alpha) {
1030                                 pixman_region32_init(&window->surface->pending.opaque);
1031                         } else {
1032                                 pixman_region32_init_rect(&window->surface->pending.opaque, 0, 0,
1033                                                           width, height);
1034                         }
1035                         if (window->view)
1036                                 weston_view_geometry_dirty(window->view);
1037                 }
1038                 return;
1039         }
1040
1041         if (window->repaint_source)
1042                 return;
1043
1044         window->repaint_source =
1045                 wl_event_loop_add_idle(wm->server->loop,
1046                                        weston_wm_window_draw_decoration,
1047                                        window);
1048 }
1049
1050 static void
1051 weston_wm_handle_property_notify(struct weston_wm *wm, xcb_generic_event_t *event)
1052 {
1053         xcb_property_notify_event_t *property_notify =
1054                 (xcb_property_notify_event_t *) event;
1055         struct weston_wm_window *window;
1056
1057         window = hash_table_lookup(wm->window_hash, property_notify->window);
1058         if (!window)
1059                 return;
1060
1061         window->properties_dirty = 1;
1062
1063         wm_log("XCB_PROPERTY_NOTIFY: window %d, ", property_notify->window);
1064         if (property_notify->state == XCB_PROPERTY_DELETE)
1065                 wm_log("deleted\n");
1066         else
1067                 read_and_dump_property(wm, property_notify->window,
1068                                        property_notify->atom);
1069
1070         if (property_notify->atom == wm->atom.net_wm_name ||
1071             property_notify->atom == XCB_ATOM_WM_NAME)
1072                 weston_wm_window_schedule_repaint(window);
1073 }
1074
1075 static void
1076 weston_wm_window_create(struct weston_wm *wm,
1077                         xcb_window_t id, int width, int height, int x, int y, int override)
1078 {
1079         struct weston_wm_window *window;
1080         uint32_t values[1];
1081         xcb_get_geometry_cookie_t geometry_cookie;
1082         xcb_get_geometry_reply_t *geometry_reply;
1083
1084         window = zalloc(sizeof *window);
1085         if (window == NULL) {
1086                 wm_log("failed to allocate window\n");
1087                 return;
1088         }
1089
1090         geometry_cookie = xcb_get_geometry(wm->conn, id);
1091
1092         values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE;
1093         xcb_change_window_attributes(wm->conn, id, XCB_CW_EVENT_MASK, values);
1094
1095         window->wm = wm;
1096         window->id = id;
1097         window->properties_dirty = 1;
1098         window->override_redirect = override;
1099         window->width = width;
1100         window->height = height;
1101         window->x = x;
1102         window->y = y;
1103
1104         geometry_reply = xcb_get_geometry_reply(wm->conn, geometry_cookie, NULL);
1105         /* technically we should use XRender and check the visual format's
1106         alpha_mask, but checking depth is simpler and works in all known cases */
1107         if(geometry_reply != NULL)
1108                 window->has_alpha = geometry_reply->depth == 32;
1109         free(geometry_reply);
1110
1111         hash_table_insert(wm->window_hash, id, window);
1112 }
1113
1114 static void
1115 weston_wm_window_destroy(struct weston_wm_window *window)
1116 {
1117         struct weston_wm *wm = window->wm;
1118
1119         if (window->repaint_source)
1120                 wl_event_source_remove(window->repaint_source);
1121         if (window->cairo_surface)
1122                 cairo_surface_destroy(window->cairo_surface);
1123
1124         if (window->frame_id) {
1125                 xcb_reparent_window(wm->conn, window->id, wm->wm_window, 0, 0);
1126                 xcb_destroy_window(wm->conn, window->frame_id);
1127                 weston_wm_window_set_wm_state(window, ICCCM_WITHDRAWN_STATE);
1128                 hash_table_remove(wm->window_hash, window->frame_id);
1129                 window->frame_id = XCB_WINDOW_NONE;
1130         }
1131
1132         if (window->surface_id)
1133                 wl_list_remove(&window->link);
1134
1135         hash_table_remove(window->wm->window_hash, window->id);
1136         free(window);
1137 }
1138
1139 static void
1140 weston_wm_handle_create_notify(struct weston_wm *wm, xcb_generic_event_t *event)
1141 {
1142         xcb_create_notify_event_t *create_notify =
1143                 (xcb_create_notify_event_t *) event;
1144
1145         wm_log("XCB_CREATE_NOTIFY (window %d, width %d, height %d%s%s)\n",
1146                create_notify->window,
1147                create_notify->width, create_notify->height,
1148                create_notify->override_redirect ? ", override" : "",
1149                our_resource(wm, create_notify->window) ? ", ours" : "");
1150
1151         if (our_resource(wm, create_notify->window))
1152                 return;
1153
1154         weston_wm_window_create(wm, create_notify->window,
1155                                 create_notify->width, create_notify->height,
1156                                 create_notify->x, create_notify->y,
1157                                 create_notify->override_redirect);
1158 }
1159
1160 static void
1161 weston_wm_handle_destroy_notify(struct weston_wm *wm, xcb_generic_event_t *event)
1162 {
1163         xcb_destroy_notify_event_t *destroy_notify =
1164                 (xcb_destroy_notify_event_t *) event;
1165         struct weston_wm_window *window;
1166
1167         wm_log("XCB_DESTROY_NOTIFY, win %d, event %d%s\n",
1168                destroy_notify->window,
1169                destroy_notify->event,
1170                our_resource(wm, destroy_notify->window) ? ", ours" : "");
1171
1172         if (our_resource(wm, destroy_notify->window))
1173                 return;
1174
1175         window = hash_table_lookup(wm->window_hash, destroy_notify->window);
1176         weston_wm_window_destroy(window);
1177 }
1178
1179 static void
1180 weston_wm_handle_reparent_notify(struct weston_wm *wm, xcb_generic_event_t *event)
1181 {
1182         xcb_reparent_notify_event_t *reparent_notify =
1183                 (xcb_reparent_notify_event_t *) event;
1184         struct weston_wm_window *window;
1185
1186         wm_log("XCB_REPARENT_NOTIFY (window %d, parent %d, event %d)\n",
1187                reparent_notify->window,
1188                reparent_notify->parent,
1189                reparent_notify->event);
1190
1191         if (reparent_notify->parent == wm->screen->root) {
1192                 weston_wm_window_create(wm, reparent_notify->window, 10, 10,
1193                                         reparent_notify->x, reparent_notify->y,
1194                                         reparent_notify->override_redirect);
1195         } else if (!our_resource(wm, reparent_notify->parent)) {
1196                 window = hash_table_lookup(wm->window_hash,
1197                                            reparent_notify->window);
1198                 weston_wm_window_destroy(window);
1199         }
1200 }
1201
1202 struct weston_seat *
1203 weston_wm_pick_seat(struct weston_wm *wm)
1204 {
1205         return container_of(wm->server->compositor->seat_list.next,
1206                             struct weston_seat, link);
1207 }
1208
1209 static struct weston_seat *
1210 weston_wm_pick_seat_for_window(struct weston_wm_window *window)
1211 {
1212         struct weston_wm *wm = window->wm;
1213         struct weston_seat *seat, *s;
1214
1215         seat = NULL;
1216         wl_list_for_each(s, &wm->server->compositor->seat_list, link) {
1217                 if (s->pointer != NULL &&
1218                     s->pointer->focus == window->view &&
1219                     s->pointer->button_count > 0 &&
1220                     (seat == NULL ||
1221                      s->pointer->grab_serial -
1222                      seat->pointer->grab_serial < (1 << 30)))
1223                         seat = s;
1224         }
1225
1226         return seat;
1227 }
1228
1229 static void
1230 weston_wm_window_handle_moveresize(struct weston_wm_window *window,
1231                                    xcb_client_message_event_t *client_message)
1232 {
1233         static const int map[] = {
1234                 THEME_LOCATION_RESIZING_TOP_LEFT,
1235                 THEME_LOCATION_RESIZING_TOP,
1236                 THEME_LOCATION_RESIZING_TOP_RIGHT,
1237                 THEME_LOCATION_RESIZING_RIGHT,
1238                 THEME_LOCATION_RESIZING_BOTTOM_RIGHT,
1239                 THEME_LOCATION_RESIZING_BOTTOM,
1240                 THEME_LOCATION_RESIZING_BOTTOM_LEFT,
1241                 THEME_LOCATION_RESIZING_LEFT
1242         };
1243
1244         struct weston_wm *wm = window->wm;
1245         struct weston_seat *seat = weston_wm_pick_seat_for_window(window);
1246         int detail;
1247         struct weston_shell_interface *shell_interface =
1248                 &wm->server->compositor->shell_interface;
1249
1250         if (seat->pointer->button_count != 1 || !window->view
1251             || seat->pointer->focus != window->view)
1252                 return;
1253
1254         detail = client_message->data.data32[2];
1255         switch (detail) {
1256         case _NET_WM_MOVERESIZE_MOVE:
1257                 shell_interface->move(window->shsurf, seat);
1258                 break;
1259         case _NET_WM_MOVERESIZE_SIZE_TOPLEFT:
1260         case _NET_WM_MOVERESIZE_SIZE_TOP:
1261         case _NET_WM_MOVERESIZE_SIZE_TOPRIGHT:
1262         case _NET_WM_MOVERESIZE_SIZE_RIGHT:
1263         case _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT:
1264         case _NET_WM_MOVERESIZE_SIZE_BOTTOM:
1265         case _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT:
1266         case _NET_WM_MOVERESIZE_SIZE_LEFT:
1267                 shell_interface->resize(window->shsurf, seat, map[detail]);
1268                 break;
1269         case _NET_WM_MOVERESIZE_CANCEL:
1270                 break;
1271         }
1272 }
1273
1274 #define _NET_WM_STATE_REMOVE    0
1275 #define _NET_WM_STATE_ADD       1
1276 #define _NET_WM_STATE_TOGGLE    2
1277
1278 static int
1279 update_state(int action, int *state)
1280 {
1281         int new_state, changed;
1282
1283         switch (action) {
1284         case _NET_WM_STATE_REMOVE:
1285                 new_state = 0;
1286                 break;
1287         case _NET_WM_STATE_ADD:
1288                 new_state = 1;
1289                 break;
1290         case _NET_WM_STATE_TOGGLE:
1291                 new_state = !*state;
1292                 break;
1293         default:
1294                 return 0;
1295         }
1296
1297         changed = (*state != new_state);
1298         *state = new_state;
1299
1300         return changed;
1301 }
1302
1303 static void
1304 weston_wm_window_configure(void *data);
1305
1306 static void
1307 weston_wm_window_handle_state(struct weston_wm_window *window,
1308                               xcb_client_message_event_t *client_message)
1309 {
1310         struct weston_wm *wm = window->wm;
1311         struct weston_shell_interface *shell_interface =
1312                 &wm->server->compositor->shell_interface;
1313         uint32_t action, property;
1314
1315         action = client_message->data.data32[0];
1316         property = client_message->data.data32[1];
1317
1318         if (property == wm->atom.net_wm_state_fullscreen &&
1319             update_state(action, &window->fullscreen)) {
1320                 weston_wm_window_set_net_wm_state(window);
1321                 if (window->fullscreen) {
1322                         window->saved_width = window->width;
1323                         window->saved_height = window->height;
1324
1325                         if (window->shsurf)
1326                                 shell_interface->set_fullscreen(window->shsurf,
1327                                                                 WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
1328                                                                 0, NULL);
1329                 } else {
1330                         shell_interface->set_toplevel(window->shsurf);
1331                         window->width = window->saved_width;
1332                         window->height = window->saved_height;
1333                         if (window->frame)
1334                                 frame_resize_inside(window->frame,
1335                                                     window->width,
1336                                                     window->height);
1337                         weston_wm_window_configure(window);
1338                 }
1339         }
1340 }
1341
1342 static void
1343 surface_destroy(struct wl_listener *listener, void *data)
1344 {
1345         struct weston_wm_window *window =
1346                 container_of(listener,
1347                              struct weston_wm_window, surface_destroy_listener);
1348
1349         wm_log("surface for xid %d destroyed\n", window->id);
1350
1351         /* This should have been freed by the shell.
1352          * Don't try to use it later. */
1353         window->shsurf = NULL;
1354         window->surface = NULL;
1355         window->view = NULL;
1356 }
1357
1358 static void
1359 weston_wm_window_handle_surface_id(struct weston_wm_window *window,
1360                                    xcb_client_message_event_t *client_message)
1361 {
1362         struct weston_wm *wm = window->wm;
1363         struct wl_resource *resource;
1364
1365         if (window->surface_id != 0) {
1366                 wm_log("already have surface id for window %d\n", window->id);
1367                 return;
1368         }
1369
1370         /* Xwayland will send the wayland requests to create the
1371          * wl_surface before sending this client message.  Even so, we
1372          * can end up handling the X event before the wayland requests
1373          * and thus when we try to look up the surface ID, the surface
1374          * hasn't been created yet.  In that case put the window on
1375          * the unpaired window list and continue when the surface gets
1376          * created. */
1377         window->surface_id = client_message->data.data32[0];
1378         resource = wl_client_get_object(wm->server->client,
1379                                         window->surface_id);
1380         if (resource)
1381                 xserver_map_shell_surface(window,
1382                                           wl_resource_get_user_data(resource));
1383         else
1384                 wl_list_insert(&wm->unpaired_window_list, &window->link);
1385 }
1386
1387 static void
1388 weston_wm_handle_client_message(struct weston_wm *wm,
1389                                 xcb_generic_event_t *event)
1390 {
1391         xcb_client_message_event_t *client_message =
1392                 (xcb_client_message_event_t *) event;
1393         struct weston_wm_window *window;
1394
1395         window = hash_table_lookup(wm->window_hash, client_message->window);
1396
1397         wm_log("XCB_CLIENT_MESSAGE (%s %d %d %d %d %d win %d)\n",
1398                get_atom_name(wm->conn, client_message->type),
1399                client_message->data.data32[0],
1400                client_message->data.data32[1],
1401                client_message->data.data32[2],
1402                client_message->data.data32[3],
1403                client_message->data.data32[4],
1404                client_message->window);
1405
1406         if (client_message->type == wm->atom.net_wm_moveresize)
1407                 weston_wm_window_handle_moveresize(window, client_message);
1408         else if (client_message->type == wm->atom.net_wm_state)
1409                 weston_wm_window_handle_state(window, client_message);
1410         else if (client_message->type == wm->atom.wl_surface_id)
1411                 weston_wm_window_handle_surface_id(window, client_message);
1412 }
1413
1414 enum cursor_type {
1415         XWM_CURSOR_TOP,
1416         XWM_CURSOR_BOTTOM,
1417         XWM_CURSOR_LEFT,
1418         XWM_CURSOR_RIGHT,
1419         XWM_CURSOR_TOP_LEFT,
1420         XWM_CURSOR_TOP_RIGHT,
1421         XWM_CURSOR_BOTTOM_LEFT,
1422         XWM_CURSOR_BOTTOM_RIGHT,
1423         XWM_CURSOR_LEFT_PTR,
1424 };
1425
1426 /*
1427  * The following correspondences between file names and cursors was copied
1428  * from: https://bugs.kde.org/attachment.cgi?id=67313
1429  */
1430
1431 static const char *bottom_left_corners[] = {
1432         "bottom_left_corner",
1433         "sw-resize",
1434         "size_bdiag"
1435 };
1436
1437 static const char *bottom_right_corners[] = {
1438         "bottom_right_corner",
1439         "se-resize",
1440         "size_fdiag"
1441 };
1442
1443 static const char *bottom_sides[] = {
1444         "bottom_side",
1445         "s-resize",
1446         "size_ver"
1447 };
1448
1449 static const char *left_ptrs[] = {
1450         "left_ptr",
1451         "default",
1452         "top_left_arrow",
1453         "left-arrow"
1454 };
1455
1456 static const char *left_sides[] = {
1457         "left_side",
1458         "w-resize",
1459         "size_hor"
1460 };
1461
1462 static const char *right_sides[] = {
1463         "right_side",
1464         "e-resize",
1465         "size_hor"
1466 };
1467
1468 static const char *top_left_corners[] = {
1469         "top_left_corner",
1470         "nw-resize",
1471         "size_fdiag"
1472 };
1473
1474 static const char *top_right_corners[] = {
1475         "top_right_corner",
1476         "ne-resize",
1477         "size_bdiag"
1478 };
1479
1480 static const char *top_sides[] = {
1481         "top_side",
1482         "n-resize",
1483         "size_ver"
1484 };
1485
1486 struct cursor_alternatives {
1487         const char **names;
1488         size_t count;
1489 };
1490
1491 static const struct cursor_alternatives cursors[] = {
1492         {top_sides, ARRAY_LENGTH(top_sides)},
1493         {bottom_sides, ARRAY_LENGTH(bottom_sides)},
1494         {left_sides, ARRAY_LENGTH(left_sides)},
1495         {right_sides, ARRAY_LENGTH(right_sides)},
1496         {top_left_corners, ARRAY_LENGTH(top_left_corners)},
1497         {top_right_corners, ARRAY_LENGTH(top_right_corners)},
1498         {bottom_left_corners, ARRAY_LENGTH(bottom_left_corners)},
1499         {bottom_right_corners, ARRAY_LENGTH(bottom_right_corners)},
1500         {left_ptrs, ARRAY_LENGTH(left_ptrs)},
1501 };
1502
1503 static void
1504 weston_wm_create_cursors(struct weston_wm *wm)
1505 {
1506         const char *name;
1507         int i, count = ARRAY_LENGTH(cursors);
1508         size_t j;
1509
1510         wm->cursors = malloc(count * sizeof(xcb_cursor_t));
1511         for (i = 0; i < count; i++) {
1512                 for (j = 0; j < cursors[i].count; j++) {
1513                         name = cursors[i].names[j];
1514                         wm->cursors[i] =
1515                                 xcb_cursor_library_load_cursor(wm, name);
1516                         if (wm->cursors[i] != (xcb_cursor_t)-1)
1517                                 break;
1518                 }
1519         }
1520
1521         wm->last_cursor = -1;
1522 }
1523
1524 static void
1525 weston_wm_destroy_cursors(struct weston_wm *wm)
1526 {
1527         uint8_t i;
1528
1529         for (i = 0; i < ARRAY_LENGTH(cursors); i++)
1530                 xcb_free_cursor(wm->conn, wm->cursors[i]);
1531
1532         free(wm->cursors);
1533 }
1534
1535 static int
1536 get_cursor_for_location(enum theme_location location)
1537 {
1538         // int location = theme_get_location(t, x, y, width, height, 0);
1539
1540         switch (location) {
1541                 case THEME_LOCATION_RESIZING_TOP:
1542                         return XWM_CURSOR_TOP;
1543                 case THEME_LOCATION_RESIZING_BOTTOM:
1544                         return XWM_CURSOR_BOTTOM;
1545                 case THEME_LOCATION_RESIZING_LEFT:
1546                         return XWM_CURSOR_LEFT;
1547                 case THEME_LOCATION_RESIZING_RIGHT:
1548                         return XWM_CURSOR_RIGHT;
1549                 case THEME_LOCATION_RESIZING_TOP_LEFT:
1550                         return XWM_CURSOR_TOP_LEFT;
1551                 case THEME_LOCATION_RESIZING_TOP_RIGHT:
1552                         return XWM_CURSOR_TOP_RIGHT;
1553                 case THEME_LOCATION_RESIZING_BOTTOM_LEFT:
1554                         return XWM_CURSOR_BOTTOM_LEFT;
1555                 case THEME_LOCATION_RESIZING_BOTTOM_RIGHT:
1556                         return XWM_CURSOR_BOTTOM_RIGHT;
1557                 case THEME_LOCATION_EXTERIOR:
1558                 case THEME_LOCATION_TITLEBAR:
1559                 default:
1560                         return XWM_CURSOR_LEFT_PTR;
1561         }
1562 }
1563
1564 static void
1565 weston_wm_window_set_cursor(struct weston_wm *wm, xcb_window_t window_id,
1566                             int cursor)
1567 {
1568         uint32_t cursor_value_list;
1569
1570         if (wm->last_cursor == cursor)
1571                 return;
1572
1573         wm->last_cursor = cursor;
1574
1575         cursor_value_list = wm->cursors[cursor];
1576         xcb_change_window_attributes (wm->conn, window_id,
1577                                       XCB_CW_CURSOR, &cursor_value_list);
1578         xcb_flush(wm->conn);
1579 }
1580
1581 static void
1582 weston_wm_window_close(struct weston_wm_window *window, xcb_timestamp_t time)
1583 {
1584         xcb_client_message_event_t client_message;
1585
1586         if (window->delete_window) {
1587                 client_message.response_type = XCB_CLIENT_MESSAGE;
1588                 client_message.format = 32;
1589                 client_message.window = window->id;
1590                 client_message.type = window->wm->atom.wm_protocols;
1591                 client_message.data.data32[0] =
1592                         window->wm->atom.wm_delete_window;
1593                 client_message.data.data32[1] = time;
1594
1595                 xcb_send_event(window->wm->conn, 0, window->id,
1596                                XCB_EVENT_MASK_NO_EVENT,
1597                                (char *) &client_message);
1598         } else {
1599                 xcb_kill_client(window->wm->conn, window->id);
1600         }
1601 }
1602
1603 static void
1604 weston_wm_handle_button(struct weston_wm *wm, xcb_generic_event_t *event)
1605 {
1606         xcb_button_press_event_t *button = (xcb_button_press_event_t *) event;
1607         struct weston_shell_interface *shell_interface =
1608                 &wm->server->compositor->shell_interface;
1609         struct weston_seat *seat;
1610         struct weston_wm_window *window;
1611         enum theme_location location;
1612         enum frame_button_state button_state;
1613         uint32_t button_id;
1614
1615         wm_log("XCB_BUTTON_%s (detail %d)\n",
1616                button->response_type == XCB_BUTTON_PRESS ?
1617                "PRESS" : "RELEASE", button->detail);
1618
1619         window = hash_table_lookup(wm->window_hash, button->event);
1620         if (!window || !window->decorate)
1621                 return;
1622
1623         if (button->detail != 1 && button->detail != 2)
1624                 return;
1625
1626         seat = weston_wm_pick_seat_for_window(window);
1627
1628         button_state = button->response_type == XCB_BUTTON_PRESS ?
1629                 FRAME_BUTTON_PRESSED : FRAME_BUTTON_RELEASED;
1630         button_id = button->detail == 1 ? BTN_LEFT : BTN_RIGHT;
1631
1632         /* Make sure we're looking at the right location.  The frame
1633          * could have received a motion event from a pointer from a
1634          * different wl_seat, but under X it looks like our core
1635          * pointer moved.  Move the frame pointer to the button press
1636          * location before deciding what to do. */
1637         location = frame_pointer_motion(window->frame, NULL,
1638                                         button->event_x, button->event_y);
1639         location = frame_pointer_button(window->frame, NULL,
1640                                         button_id, button_state);
1641         if (frame_status(window->frame) & FRAME_STATUS_REPAINT)
1642                 weston_wm_window_schedule_repaint(window);
1643
1644         if (frame_status(window->frame) & FRAME_STATUS_MOVE) {
1645                 shell_interface->move(window->shsurf, seat);
1646                 frame_status_clear(window->frame, FRAME_STATUS_MOVE);
1647         }
1648
1649         if (frame_status(window->frame) & FRAME_STATUS_RESIZE) {
1650                 shell_interface->resize(window->shsurf, seat, location);
1651                 frame_status_clear(window->frame, FRAME_STATUS_RESIZE);
1652         }
1653
1654         if (frame_status(window->frame) & FRAME_STATUS_CLOSE) {
1655                 weston_wm_window_close(window, button->time);
1656                 frame_status_clear(window->frame, FRAME_STATUS_CLOSE);
1657         }
1658 }
1659
1660 static void
1661 weston_wm_handle_motion(struct weston_wm *wm, xcb_generic_event_t *event)
1662 {
1663         xcb_motion_notify_event_t *motion = (xcb_motion_notify_event_t *) event;
1664         struct weston_wm_window *window;
1665         enum theme_location location;
1666         int cursor;
1667
1668         window = hash_table_lookup(wm->window_hash, motion->event);
1669         if (!window || !window->decorate)
1670                 return;
1671
1672         location = frame_pointer_motion(window->frame, NULL,
1673                                         motion->event_x, motion->event_y);
1674         if (frame_status(window->frame) & FRAME_STATUS_REPAINT)
1675                 weston_wm_window_schedule_repaint(window);
1676
1677         cursor = get_cursor_for_location(location);
1678         weston_wm_window_set_cursor(wm, window->frame_id, cursor);
1679 }
1680
1681 static void
1682 weston_wm_handle_enter(struct weston_wm *wm, xcb_generic_event_t *event)
1683 {
1684         xcb_enter_notify_event_t *enter = (xcb_enter_notify_event_t *) event;
1685         struct weston_wm_window *window;
1686         enum theme_location location;
1687         int cursor;
1688
1689         window = hash_table_lookup(wm->window_hash, enter->event);
1690         if (!window || !window->decorate)
1691                 return;
1692
1693         location = frame_pointer_enter(window->frame, NULL,
1694                                        enter->event_x, enter->event_y);
1695         if (frame_status(window->frame) & FRAME_STATUS_REPAINT)
1696                 weston_wm_window_schedule_repaint(window);
1697
1698         cursor = get_cursor_for_location(location);
1699         weston_wm_window_set_cursor(wm, window->frame_id, cursor);
1700 }
1701
1702 static void
1703 weston_wm_handle_leave(struct weston_wm *wm, xcb_generic_event_t *event)
1704 {
1705         xcb_leave_notify_event_t *leave = (xcb_leave_notify_event_t *) event;
1706         struct weston_wm_window *window;
1707
1708         window = hash_table_lookup(wm->window_hash, leave->event);
1709         if (!window || !window->decorate)
1710                 return;
1711
1712         frame_pointer_leave(window->frame, NULL);
1713         if (frame_status(window->frame) & FRAME_STATUS_REPAINT)
1714                 weston_wm_window_schedule_repaint(window);
1715
1716         weston_wm_window_set_cursor(wm, window->frame_id, XWM_CURSOR_LEFT_PTR);
1717 }
1718
1719 static int
1720 weston_wm_handle_event(int fd, uint32_t mask, void *data)
1721 {
1722         struct weston_wm *wm = data;
1723         xcb_generic_event_t *event;
1724         int count = 0;
1725
1726         while (event = xcb_poll_for_event(wm->conn), event != NULL) {
1727                 if (weston_wm_handle_selection_event(wm, event)) {
1728                         free(event);
1729                         count++;
1730                         continue;
1731                 }
1732
1733                 if (weston_wm_handle_dnd_event(wm, event)) {
1734                         free(event);
1735                         count++;
1736                         continue;
1737                 }
1738
1739                 switch (EVENT_TYPE(event)) {
1740                 case XCB_BUTTON_PRESS:
1741                 case XCB_BUTTON_RELEASE:
1742                         weston_wm_handle_button(wm, event);
1743                         break;
1744                 case XCB_ENTER_NOTIFY:
1745                         weston_wm_handle_enter(wm, event);
1746                         break;
1747                 case XCB_LEAVE_NOTIFY:
1748                         weston_wm_handle_leave(wm, event);
1749                         break;
1750                 case XCB_MOTION_NOTIFY:
1751                         weston_wm_handle_motion(wm, event);
1752                         break;
1753                 case XCB_CREATE_NOTIFY:
1754                         weston_wm_handle_create_notify(wm, event);
1755                         break;
1756                 case XCB_MAP_REQUEST:
1757                         weston_wm_handle_map_request(wm, event);
1758                         break;
1759                 case XCB_MAP_NOTIFY:
1760                         weston_wm_handle_map_notify(wm, event);
1761                         break;
1762                 case XCB_UNMAP_NOTIFY:
1763                         weston_wm_handle_unmap_notify(wm, event);
1764                         break;
1765                 case XCB_REPARENT_NOTIFY:
1766                         weston_wm_handle_reparent_notify(wm, event);
1767                         break;
1768                 case XCB_CONFIGURE_REQUEST:
1769                         weston_wm_handle_configure_request(wm, event);
1770                         break;
1771                 case XCB_CONFIGURE_NOTIFY:
1772                         weston_wm_handle_configure_notify(wm, event);
1773                         break;
1774                 case XCB_DESTROY_NOTIFY:
1775                         weston_wm_handle_destroy_notify(wm, event);
1776                         break;
1777                 case XCB_MAPPING_NOTIFY:
1778                         wm_log("XCB_MAPPING_NOTIFY\n");
1779                         break;
1780                 case XCB_PROPERTY_NOTIFY:
1781                         weston_wm_handle_property_notify(wm, event);
1782                         break;
1783                 case XCB_CLIENT_MESSAGE:
1784                         weston_wm_handle_client_message(wm, event);
1785                         break;
1786                 }
1787
1788                 free(event);
1789                 count++;
1790         }
1791
1792         xcb_flush(wm->conn);
1793
1794         return count;
1795 }
1796
1797 static void
1798 weston_wm_get_visual_and_colormap(struct weston_wm *wm)
1799 {
1800         xcb_depth_iterator_t d_iter;
1801         xcb_visualtype_iterator_t vt_iter;
1802         xcb_visualtype_t *visualtype;
1803
1804         d_iter = xcb_screen_allowed_depths_iterator(wm->screen);
1805         visualtype = NULL;
1806         while (d_iter.rem > 0) {
1807                 if (d_iter.data->depth == 32) {
1808                         vt_iter = xcb_depth_visuals_iterator(d_iter.data);
1809                         visualtype = vt_iter.data;
1810                         break;
1811                 }
1812
1813                 xcb_depth_next(&d_iter);
1814         }
1815
1816         if (visualtype == NULL) {
1817                 weston_log("no 32 bit visualtype\n");
1818                 return;
1819         }
1820
1821         wm->visual_id = visualtype->visual_id;
1822         wm->colormap = xcb_generate_id(wm->conn);
1823         xcb_create_colormap(wm->conn, XCB_COLORMAP_ALLOC_NONE,
1824                             wm->colormap, wm->screen->root, wm->visual_id);
1825 }
1826
1827 static void
1828 weston_wm_get_resources(struct weston_wm *wm)
1829 {
1830
1831 #define F(field) offsetof(struct weston_wm, field)
1832
1833         static const struct { const char *name; int offset; } atoms[] = {
1834                 { "WM_PROTOCOLS",       F(atom.wm_protocols) },
1835                 { "WM_NORMAL_HINTS",    F(atom.wm_normal_hints) },
1836                 { "WM_TAKE_FOCUS",      F(atom.wm_take_focus) },
1837                 { "WM_DELETE_WINDOW",   F(atom.wm_delete_window) },
1838                 { "WM_STATE",           F(atom.wm_state) },
1839                 { "WM_S0",              F(atom.wm_s0) },
1840                 { "WM_CLIENT_MACHINE",  F(atom.wm_client_machine) },
1841                 { "_NET_WM_CM_S0",      F(atom.net_wm_cm_s0) },
1842                 { "_NET_WM_NAME",       F(atom.net_wm_name) },
1843                 { "_NET_WM_PID",        F(atom.net_wm_pid) },
1844                 { "_NET_WM_ICON",       F(atom.net_wm_icon) },
1845                 { "_NET_WM_STATE",      F(atom.net_wm_state) },
1846                 { "_NET_WM_STATE_FULLSCREEN", F(atom.net_wm_state_fullscreen) },
1847                 { "_NET_WM_USER_TIME", F(atom.net_wm_user_time) },
1848                 { "_NET_WM_ICON_NAME", F(atom.net_wm_icon_name) },
1849                 { "_NET_WM_WINDOW_TYPE", F(atom.net_wm_window_type) },
1850
1851                 { "_NET_WM_WINDOW_TYPE_DESKTOP", F(atom.net_wm_window_type_desktop) },
1852                 { "_NET_WM_WINDOW_TYPE_DOCK", F(atom.net_wm_window_type_dock) },
1853                 { "_NET_WM_WINDOW_TYPE_TOOLBAR", F(atom.net_wm_window_type_toolbar) },
1854                 { "_NET_WM_WINDOW_TYPE_MENU", F(atom.net_wm_window_type_menu) },
1855                 { "_NET_WM_WINDOW_TYPE_UTILITY", F(atom.net_wm_window_type_utility) },
1856                 { "_NET_WM_WINDOW_TYPE_SPLASH", F(atom.net_wm_window_type_splash) },
1857                 { "_NET_WM_WINDOW_TYPE_DIALOG", F(atom.net_wm_window_type_dialog) },
1858                 { "_NET_WM_WINDOW_TYPE_DROPDOWN_MENU", F(atom.net_wm_window_type_dropdown) },
1859                 { "_NET_WM_WINDOW_TYPE_POPUP_MENU", F(atom.net_wm_window_type_popup) },
1860                 { "_NET_WM_WINDOW_TYPE_TOOLTIP", F(atom.net_wm_window_type_tooltip) },
1861                 { "_NET_WM_WINDOW_TYPE_NOTIFICATION", F(atom.net_wm_window_type_notification) },
1862                 { "_NET_WM_WINDOW_TYPE_COMBO", F(atom.net_wm_window_type_combo) },
1863                 { "_NET_WM_WINDOW_TYPE_DND", F(atom.net_wm_window_type_dnd) },
1864                 { "_NET_WM_WINDOW_TYPE_NORMAL", F(atom.net_wm_window_type_normal) },
1865
1866                 { "_NET_WM_MOVERESIZE", F(atom.net_wm_moveresize) },
1867                 { "_NET_SUPPORTING_WM_CHECK",
1868                                         F(atom.net_supporting_wm_check) },
1869                 { "_NET_SUPPORTED",     F(atom.net_supported) },
1870                 { "_MOTIF_WM_HINTS",    F(atom.motif_wm_hints) },
1871                 { "CLIPBOARD",          F(atom.clipboard) },
1872                 { "CLIPBOARD_MANAGER",  F(atom.clipboard_manager) },
1873                 { "TARGETS",            F(atom.targets) },
1874                 { "UTF8_STRING",        F(atom.utf8_string) },
1875                 { "_WL_SELECTION",      F(atom.wl_selection) },
1876                 { "INCR",               F(atom.incr) },
1877                 { "TIMESTAMP",          F(atom.timestamp) },
1878                 { "MULTIPLE",           F(atom.multiple) },
1879                 { "UTF8_STRING" ,       F(atom.utf8_string) },
1880                 { "COMPOUND_TEXT",      F(atom.compound_text) },
1881                 { "TEXT",               F(atom.text) },
1882                 { "STRING",             F(atom.string) },
1883                 { "text/plain;charset=utf-8",   F(atom.text_plain_utf8) },
1884                 { "text/plain",         F(atom.text_plain) },
1885                 { "XdndSelection",      F(atom.xdnd_selection) },
1886                 { "XdndAware",          F(atom.xdnd_aware) },
1887                 { "XdndEnter",          F(atom.xdnd_enter) },
1888                 { "XdndLeave",          F(atom.xdnd_leave) },
1889                 { "XdndDrop",           F(atom.xdnd_drop) },
1890                 { "XdndStatus",         F(atom.xdnd_status) },
1891                 { "XdndFinished",       F(atom.xdnd_finished) },
1892                 { "XdndTypeList",       F(atom.xdnd_type_list) },
1893                 { "XdndActionCopy",     F(atom.xdnd_action_copy) },
1894                 { "WL_SURFACE_ID",      F(atom.wl_surface_id) }
1895         };
1896 #undef F
1897
1898         xcb_xfixes_query_version_cookie_t xfixes_cookie;
1899         xcb_xfixes_query_version_reply_t *xfixes_reply;
1900         xcb_intern_atom_cookie_t cookies[ARRAY_LENGTH(atoms)];
1901         xcb_intern_atom_reply_t *reply;
1902         xcb_render_query_pict_formats_reply_t *formats_reply;
1903         xcb_render_query_pict_formats_cookie_t formats_cookie;
1904         xcb_render_pictforminfo_t *formats;
1905         uint32_t i;
1906
1907         xcb_prefetch_extension_data (wm->conn, &xcb_xfixes_id);
1908         xcb_prefetch_extension_data (wm->conn, &xcb_composite_id);
1909
1910         formats_cookie = xcb_render_query_pict_formats(wm->conn);
1911
1912         for (i = 0; i < ARRAY_LENGTH(atoms); i++)
1913                 cookies[i] = xcb_intern_atom (wm->conn, 0,
1914                                               strlen(atoms[i].name),
1915                                               atoms[i].name);
1916
1917         for (i = 0; i < ARRAY_LENGTH(atoms); i++) {
1918                 reply = xcb_intern_atom_reply (wm->conn, cookies[i], NULL);
1919                 *(xcb_atom_t *) ((char *) wm + atoms[i].offset) = reply->atom;
1920                 free(reply);
1921         }
1922
1923         wm->xfixes = xcb_get_extension_data(wm->conn, &xcb_xfixes_id);
1924         if (!wm->xfixes || !wm->xfixes->present)
1925                 weston_log("xfixes not available\n");
1926
1927         xfixes_cookie = xcb_xfixes_query_version(wm->conn,
1928                                                  XCB_XFIXES_MAJOR_VERSION,
1929                                                  XCB_XFIXES_MINOR_VERSION);
1930         xfixes_reply = xcb_xfixes_query_version_reply(wm->conn,
1931                                                       xfixes_cookie, NULL);
1932
1933         weston_log("xfixes version: %d.%d\n",
1934                xfixes_reply->major_version, xfixes_reply->minor_version);
1935
1936         free(xfixes_reply);
1937
1938         formats_reply = xcb_render_query_pict_formats_reply(wm->conn,
1939                                                             formats_cookie, 0);
1940         if (formats_reply == NULL)
1941                 return;
1942
1943         formats = xcb_render_query_pict_formats_formats(formats_reply);
1944         for (i = 0; i < formats_reply->num_formats; i++) {
1945                 if (formats[i].direct.red_mask != 0xff &&
1946                     formats[i].direct.red_shift != 16)
1947                         continue;
1948                 if (formats[i].type == XCB_RENDER_PICT_TYPE_DIRECT &&
1949                     formats[i].depth == 24)
1950                         wm->format_rgb = formats[i];
1951                 if (formats[i].type == XCB_RENDER_PICT_TYPE_DIRECT &&
1952                     formats[i].depth == 32 &&
1953                     formats[i].direct.alpha_mask == 0xff &&
1954                     formats[i].direct.alpha_shift == 24)
1955                         wm->format_rgba = formats[i];
1956         }
1957
1958         free(formats_reply);
1959 }
1960
1961 static void
1962 weston_wm_create_wm_window(struct weston_wm *wm)
1963 {
1964         static const char name[] = "Weston WM";
1965
1966         wm->wm_window = xcb_generate_id(wm->conn);
1967         xcb_create_window(wm->conn,
1968                           XCB_COPY_FROM_PARENT,
1969                           wm->wm_window,
1970                           wm->screen->root,
1971                           0, 0,
1972                           10, 10,
1973                           0,
1974                           XCB_WINDOW_CLASS_INPUT_OUTPUT,
1975                           wm->screen->root_visual,
1976                           0, NULL);
1977
1978         xcb_change_property(wm->conn,
1979                             XCB_PROP_MODE_REPLACE,
1980                             wm->wm_window,
1981                             wm->atom.net_supporting_wm_check,
1982                             XCB_ATOM_WINDOW,
1983                             32, /* format */
1984                             1, &wm->wm_window);
1985
1986         xcb_change_property(wm->conn,
1987                             XCB_PROP_MODE_REPLACE,
1988                             wm->wm_window,
1989                             wm->atom.net_wm_name,
1990                             wm->atom.utf8_string,
1991                             8, /* format */
1992                             strlen(name), name);
1993
1994         xcb_change_property(wm->conn,
1995                             XCB_PROP_MODE_REPLACE,
1996                             wm->screen->root,
1997                             wm->atom.net_supporting_wm_check,
1998                             XCB_ATOM_WINDOW,
1999                             32, /* format */
2000                             1, &wm->wm_window);
2001
2002         /* Claim the WM_S0 selection even though we don't suport
2003          * the --replace functionality. */
2004         xcb_set_selection_owner(wm->conn,
2005                                 wm->wm_window,
2006                                 wm->atom.wm_s0,
2007                                 XCB_TIME_CURRENT_TIME);
2008
2009         xcb_set_selection_owner(wm->conn,
2010                                 wm->wm_window,
2011                                 wm->atom.net_wm_cm_s0,
2012                                 XCB_TIME_CURRENT_TIME);
2013 }
2014
2015 struct weston_wm *
2016 weston_wm_create(struct weston_xserver *wxs, int fd)
2017 {
2018         struct weston_wm *wm;
2019         struct wl_event_loop *loop;
2020         xcb_screen_iterator_t s;
2021         uint32_t values[1];
2022         xcb_atom_t supported[3];
2023
2024         wm = zalloc(sizeof *wm);
2025         if (wm == NULL)
2026                 return NULL;
2027
2028         wm->server = wxs;
2029         wm->window_hash = hash_table_create();
2030         if (wm->window_hash == NULL) {
2031                 free(wm);
2032                 return NULL;
2033         }
2034
2035         /* xcb_connect_to_fd takes ownership of the fd. */
2036         wm->conn = xcb_connect_to_fd(fd, NULL);
2037         if (xcb_connection_has_error(wm->conn)) {
2038                 weston_log("xcb_connect_to_fd failed\n");
2039                 close(fd);
2040                 hash_table_destroy(wm->window_hash);
2041                 free(wm);
2042                 return NULL;
2043         }
2044
2045         s = xcb_setup_roots_iterator(xcb_get_setup(wm->conn));
2046         wm->screen = s.data;
2047
2048         loop = wl_display_get_event_loop(wxs->wl_display);
2049         wm->source =
2050                 wl_event_loop_add_fd(loop, fd,
2051                                      WL_EVENT_READABLE,
2052                                      weston_wm_handle_event, wm);
2053         wl_event_source_check(wm->source);
2054
2055         weston_wm_get_resources(wm);
2056         weston_wm_get_visual_and_colormap(wm);
2057
2058         values[0] =
2059                 XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
2060                 XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
2061                 XCB_EVENT_MASK_PROPERTY_CHANGE;
2062         xcb_change_window_attributes(wm->conn, wm->screen->root,
2063                                      XCB_CW_EVENT_MASK, values);
2064
2065         xcb_composite_redirect_subwindows(wm->conn, wm->screen->root,
2066                                           XCB_COMPOSITE_REDIRECT_MANUAL);
2067
2068         wm->theme = theme_create();
2069
2070         supported[0] = wm->atom.net_wm_moveresize;
2071         supported[1] = wm->atom.net_wm_state;
2072         supported[2] = wm->atom.net_wm_state_fullscreen;
2073         xcb_change_property(wm->conn,
2074                             XCB_PROP_MODE_REPLACE,
2075                             wm->screen->root,
2076                             wm->atom.net_supported,
2077                             XCB_ATOM_ATOM,
2078                             32, /* format */
2079                             ARRAY_LENGTH(supported), supported);
2080
2081         weston_wm_selection_init(wm);
2082
2083         weston_wm_dnd_init(wm);
2084
2085         xcb_flush(wm->conn);
2086
2087         wm->create_surface_listener.notify = weston_wm_create_surface;
2088         wl_signal_add(&wxs->compositor->create_surface_signal,
2089                       &wm->create_surface_listener);
2090         wm->activate_listener.notify = weston_wm_window_activate;
2091         wl_signal_add(&wxs->compositor->activate_signal,
2092                       &wm->activate_listener);
2093         wm->transform_listener.notify = weston_wm_window_transform;
2094         wl_signal_add(&wxs->compositor->transform_signal,
2095                       &wm->transform_listener);
2096         wm->kill_listener.notify = weston_wm_kill_client;
2097         wl_signal_add(&wxs->compositor->kill_signal,
2098                       &wm->kill_listener);
2099         wl_list_init(&wm->unpaired_window_list);
2100
2101         weston_wm_create_cursors(wm);
2102         weston_wm_window_set_cursor(wm, wm->screen->root, XWM_CURSOR_LEFT_PTR);
2103
2104         /* Create wm window and take WM_S0 selection last, which
2105          * signals to Xwayland that we're done with setup. */
2106         weston_wm_create_wm_window(wm);
2107
2108         weston_log("created wm, root %d\n", wm->screen->root);
2109
2110         return wm;
2111 }
2112
2113 void
2114 weston_wm_destroy(struct weston_wm *wm)
2115 {
2116         /* FIXME: Free windows in hash. */
2117         hash_table_destroy(wm->window_hash);
2118         weston_wm_destroy_cursors(wm);
2119         xcb_disconnect(wm->conn);
2120         wl_event_source_remove(wm->source);
2121         wl_list_remove(&wm->selection_listener.link);
2122         wl_list_remove(&wm->activate_listener.link);
2123         wl_list_remove(&wm->kill_listener.link);
2124         wl_list_remove(&wm->transform_listener.link);
2125
2126         free(wm);
2127 }
2128
2129 static struct weston_wm_window *
2130 get_wm_window(struct weston_surface *surface)
2131 {
2132         struct wl_listener *listener;
2133
2134         listener = wl_signal_get(&surface->destroy_signal, surface_destroy);
2135         if (listener)
2136                 return container_of(listener, struct weston_wm_window,
2137                                     surface_destroy_listener);
2138
2139         return NULL;
2140 }
2141
2142 static void
2143 weston_wm_window_configure(void *data)
2144 {
2145         struct weston_wm_window *window = data;
2146         struct weston_wm *wm = window->wm;
2147         uint32_t values[4];
2148         int x, y, width, height;
2149
2150         weston_wm_window_get_child_position(window, &x, &y);
2151         values[0] = x;
2152         values[1] = y;
2153         values[2] = window->width;
2154         values[3] = window->height;
2155         xcb_configure_window(wm->conn,
2156                              window->id,
2157                              XCB_CONFIG_WINDOW_X |
2158                              XCB_CONFIG_WINDOW_Y |
2159                              XCB_CONFIG_WINDOW_WIDTH |
2160                              XCB_CONFIG_WINDOW_HEIGHT,
2161                              values);
2162
2163         weston_wm_window_get_frame_size(window, &width, &height);
2164         values[0] = width;
2165         values[1] = height;
2166         xcb_configure_window(wm->conn,
2167                              window->frame_id,
2168                              XCB_CONFIG_WINDOW_WIDTH |
2169                              XCB_CONFIG_WINDOW_HEIGHT,
2170                              values);
2171
2172         window->configure_source = NULL;
2173
2174         weston_wm_window_schedule_repaint(window);
2175 }
2176
2177 static void
2178 send_configure(struct weston_surface *surface,
2179                uint32_t edges, int32_t width, int32_t height)
2180 {
2181         struct weston_wm_window *window = get_wm_window(surface);
2182         struct weston_wm *wm = window->wm;
2183         struct theme *t = window->wm->theme;
2184         int vborder, hborder;
2185
2186         if (window->fullscreen) {
2187                 hborder = 0;
2188                 vborder = 0;
2189         } else if (window->decorate) {
2190                 hborder = 2 * (t->margin + t->width);
2191                 vborder = 2 * t->margin + t->titlebar_height + t->width;
2192         } else {
2193                 hborder = 2 * t->margin;
2194                 vborder = 2 * t->margin;
2195         }
2196
2197         if (width > hborder)
2198                 window->width = width - hborder;
2199         else
2200                 window->width = 1;
2201
2202         if (height > vborder)
2203                 window->height = height - vborder;
2204         else
2205                 window->height = 1;
2206
2207         if (window->frame)
2208                 frame_resize_inside(window->frame, window->width, window->height);
2209
2210         if (window->configure_source)
2211                 return;
2212
2213         window->configure_source =
2214                 wl_event_loop_add_idle(wm->server->loop,
2215                                        weston_wm_window_configure, window);
2216 }
2217
2218 static const struct weston_shell_client shell_client = {
2219         send_configure
2220 };
2221
2222 static int
2223 legacy_fullscreen(struct weston_wm *wm,
2224                   struct weston_wm_window *window,
2225                   struct weston_output **output_ret)
2226 {
2227         struct weston_compositor *compositor = wm->server->compositor;
2228         struct weston_output *output;
2229         uint32_t minmax = PMinSize | PMaxSize;
2230         int matching_size;
2231
2232         /* Heuristics for detecting legacy fullscreen windows... */
2233
2234         wl_list_for_each(output, &compositor->output_list, link) {
2235                 if (output->x == window->x &&
2236                     output->y == window->y &&
2237                     output->width == window->width &&
2238                     output->height == window->height &&
2239                     window->override_redirect) {
2240                         *output_ret = output;
2241                         return 1;
2242                 }
2243
2244                 matching_size = 0;
2245                 if ((window->size_hints.flags & (USSize |PSize)) &&
2246                     window->size_hints.width == output->width &&
2247                     window->size_hints.height == output->height)
2248                         matching_size = 1;
2249                 if ((window->size_hints.flags & minmax) == minmax &&
2250                     window->size_hints.min_width == output->width &&
2251                     window->size_hints.min_height == output->height &&
2252                     window->size_hints.max_width == output->width &&
2253                     window->size_hints.max_height == output->height)
2254                         matching_size = 1;
2255
2256                 if (matching_size && !window->decorate &&
2257                     (window->size_hints.flags & (USPosition | PPosition)) &&
2258                     window->size_hints.x == output->x &&
2259                     window->size_hints.y == output->y) {
2260                         *output_ret = output;
2261                         return 1;
2262                 }
2263         }
2264
2265         return 0;
2266 }
2267
2268 static void
2269 xserver_map_shell_surface(struct weston_wm_window *window,
2270                           struct weston_surface *surface)
2271 {
2272         struct weston_wm *wm = window->wm;
2273         struct weston_shell_interface *shell_interface =
2274                 &wm->server->compositor->shell_interface;
2275         struct weston_output *output;
2276         struct weston_wm_window *parent;
2277
2278         weston_wm_window_read_properties(window);
2279
2280         /* A weston_wm_window may have many different surfaces assigned
2281          * throughout its life, so we must make sure to remove the listener
2282          * from the old surface signal list. */
2283         if (window->surface)
2284                 wl_list_remove(&window->surface_destroy_listener.link);
2285
2286         window->surface = surface;
2287         window->surface_destroy_listener.notify = surface_destroy;
2288         wl_signal_add(&window->surface->destroy_signal,
2289                       &window->surface_destroy_listener);
2290
2291         weston_wm_window_schedule_repaint(window);
2292
2293         if (!shell_interface->create_shell_surface)
2294                 return;
2295
2296         if (!shell_interface->get_primary_view)
2297                 return;
2298
2299         window->shsurf =
2300                 shell_interface->create_shell_surface(shell_interface->shell,
2301                                                       window->surface,
2302                                                       &shell_client);
2303         window->view = shell_interface->get_primary_view(shell_interface->shell,
2304                                                          window->shsurf);
2305
2306         if (window->name)
2307                 shell_interface->set_title(window->shsurf, window->name);
2308
2309         if (window->fullscreen) {
2310                 window->saved_width = window->width;
2311                 window->saved_height = window->height;
2312                 shell_interface->set_fullscreen(window->shsurf,
2313                                                 WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
2314                                                 0, NULL);
2315                 return;
2316         } else if (legacy_fullscreen(wm, window, &output)) {
2317                 window->fullscreen = 1;
2318                 shell_interface->set_fullscreen(window->shsurf,
2319                                                 WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
2320                                                 0, output);
2321         } else if (window->override_redirect) {
2322                 shell_interface->set_xwayland(window->shsurf,
2323                                               window->x,
2324                                               window->y,
2325                                               WL_SHELL_SURFACE_TRANSIENT_INACTIVE);
2326         } else if (window->transient_for && window->transient_for->surface) {
2327                 parent = window->transient_for;
2328                 shell_interface->set_transient(window->shsurf,
2329                                                parent->surface,
2330                                                window->x - parent->x,
2331                                                window->y - parent->y, 0);
2332         } else {
2333                 shell_interface->set_toplevel(window->shsurf);
2334         }
2335 }