Pileus Git - ~andy/gtk/blob - gdk/wayland/gdkdevice-wayland.c

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #define _GNU_SOURCE
  21 #include <unistd.h>
  22 #include <fcntl.h>
  23 #include <errno.h>
  24
  25 #include "config.h"
  26
  27 #include <string.h>
  28 #include <gdk/gdkwindow.h>
  29 #include <gdk/gdktypes.h>
  30 #include "gdkprivate-wayland.h"
  31 #include "gdkwayland.h"
  32 #include "gdkkeysyms.h"
  33 #include "gdkdeviceprivate.h"
  34 #include "gdkdevicemanagerprivate.h"
  35 #include "gdkprivate-wayland.h"
  36
  37 #include <X11/extensions/XKBcommon.h>
  38 #include <X11/keysym.h>
  39
  40 #include <sys/time.h>
  41
  42 #define GDK_TYPE_DEVICE_CORE         (gdk_device_core_get_type ())
  43 #define GDK_DEVICE_CORE(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GDK_TYPE_DEVICE_CORE, GdkDeviceCore))
  44 #define GDK_DEVICE_CORE_CLASS(c)     (G_TYPE_CHECK_CLASS_CAST ((c), GDK_TYPE_DEVICE_CORE, GdkDeviceCoreClass))
  45 #define GDK_IS_DEVICE_CORE(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GDK_TYPE_DEVICE_CORE))
  46 #define GDK_IS_DEVICE_CORE_CLASS(c)  (G_TYPE_CHECK_CLASS_TYPE ((c), GDK_TYPE_DEVICE_CORE))
  47 #define GDK_DEVICE_CORE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GDK_TYPE_DEVICE_CORE, GdkDeviceCoreClass))
  48
  49 typedef struct _GdkDeviceCore GdkDeviceCore;
  50 typedef struct _GdkDeviceCoreClass GdkDeviceCoreClass;
  51 typedef struct _GdkWaylandDevice GdkWaylandDevice;
  52
  53 typedef struct _DataOffer DataOffer;
  54
  55 struct _GdkWaylandDevice
  56 {
  57   GdkDisplay *display;
  58   GdkDevice *pointer;
  59   GdkDevice *keyboard;
  60   GdkModifierType modifiers;
  61   GdkWindow *pointer_focus;
  62   GdkWindow *keyboard_focus;
  63   struct wl_input_device *device;
  64   struct wl_data_device *data_device;
  65   int32_t x, y, surface_x, surface_y;
  66   uint32_t time;
  67   GdkWindow *pointer_grab_window;
  68   uint32_t pointer_grab_time;
  69
  70   DataOffer *drag_offer;
  71   DataOffer *selection_offer;
  72 };
  73
  74 struct _GdkDeviceCore
  75 {
  76   GdkDevice parent_instance;
  77   GdkWaylandDevice *device;
  78 };
  79
  80 struct _GdkDeviceCoreClass
  81 {
  82   GdkDeviceClass parent_class;
  83 };
  84
  85 G_DEFINE_TYPE (GdkDeviceCore, gdk_device_core, GDK_TYPE_DEVICE)
  86
  87 #define GDK_TYPE_DEVICE_MANAGER_CORE         (gdk_device_manager_core_get_type ())
  88 #define GDK_DEVICE_MANAGER_CORE(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GDK_TYPE_DEVICE_MANAGER_CORE, GdkDeviceManagerCore))
  89 #define GDK_DEVICE_MANAGER_CORE_CLASS(c)     (G_TYPE_CHECK_CLASS_CAST ((c), GDK_TYPE_DEVICE_MANAGER_CORE, GdkDeviceManagerCoreClass))
  90 #define GDK_IS_DEVICE_MANAGER_CORE(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GDK_TYPE_DEVICE_MANAGER_CORE))
  91 #define GDK_IS_DEVICE_MANAGER_CORE_CLASS(c)  (G_TYPE_CHECK_CLASS_TYPE ((c), GDK_TYPE_DEVICE_MANAGER_CORE))
  92 #define GDK_DEVICE_MANAGER_CORE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GDK_TYPE_DEVICE_MANAGER_CORE, GdkDeviceManagerCoreClass))
  93
  94 typedef struct _GdkDeviceManagerCore GdkDeviceManagerCore;
  95 typedef struct _GdkDeviceManagerCoreClass GdkDeviceManagerCoreClass;
  96
  97 struct _GdkDeviceManagerCore
  98 {
  99   GdkDeviceManager parent_object;
 100   GdkDevice *core_pointer;
 101   GdkDevice *core_keyboard;
 102   GList *devices;
 103 };
 104
 105 struct _GdkDeviceManagerCoreClass
 106 {
 107   GdkDeviceManagerClass parent_class;
 108 };
 109
 110 G_DEFINE_TYPE (GdkDeviceManagerCore,
 111                gdk_device_manager_core, GDK_TYPE_DEVICE_MANAGER)
 112
 113 static gboolean
 114 gdk_device_core_get_history (GdkDevice      *device,
 115                              GdkWindow      *window,
 116                              guint32         start,
 117                              guint32         stop,
 118                              GdkTimeCoord ***events,
 119                              gint           *n_events)
 120 {
 121   return FALSE;
 122 }
 123
 124 static void
 125 gdk_device_core_get_state (GdkDevice       *device,
 126                            GdkWindow       *window,
 127                            gdouble         *axes,
 128                            GdkModifierType *mask)
 129 {
 130   gint x_int, y_int;
 131
 132   gdk_window_get_device_position (window, device, &x_int, &y_int, mask);
 133
 134   if (axes)
 135     {
 136       axes[0] = x_int;
 137       axes[1] = y_int;
 138     }
 139 }
 140
 141 static void
 142 gdk_device_core_set_window_cursor (GdkDevice *device,
 143                                    GdkWindow *window,
 144                                    GdkCursor *cursor)
 145 {
 146   GdkWaylandDevice *wd = GDK_DEVICE_CORE(device)->device;
 147   struct wl_buffer *buffer;
 148   int x, y;
 149
 150   if (cursor)
 151     g_object_ref (cursor);
 152
 153   /* Setting the cursor to NULL means that we should use the default cursor */
 154   if (!cursor)
 155     {
 156       /* FIXME: Is this the best sensible default ? */
 157       cursor = _gdk_wayland_display_get_cursor_for_type (device->display,
 158                                                          GDK_LEFT_PTR);
 159     }
 160
 161   buffer = _gdk_wayland_cursor_get_buffer(cursor, &x, &y);
 162   wl_input_device_attach(wd->device, wd->time, buffer, x, y);
 163
 164   g_object_unref (cursor);
 165 }
 166
 167 static void
 168 gdk_device_core_warp (GdkDevice *device,
 169                       GdkScreen *screen,
 170                       gint       x,
 171                       gint       y)
 172 {
 173 }
 174
 175 static gboolean
 176 gdk_device_core_query_state (GdkDevice        *device,
 177                              GdkWindow        *window,
 178                              GdkWindow       **root_window,
 179                              GdkWindow       **child_window,
 180                              gint             *root_x,
 181                              gint             *root_y,
 182                              gint             *win_x,
 183                              gint             *win_y,
 184                              GdkModifierType  *mask)
 185 {
 186   GdkWaylandDevice *wd;
 187   GdkScreen *default_screen;
 188
 189   wd = GDK_DEVICE_CORE(device)->device;
 190   default_screen = gdk_display_get_default_screen (wd->display);
 191
 192   if (root_window)
 193     *root_window = gdk_screen_get_root_window (default_screen);
 194   if (child_window)
 195     *child_window = wd->pointer_focus;
 196   if (root_x)
 197     *root_x = wd->x;
 198   if (root_y)
 199     *root_y = wd->y;
 200   if (win_x)
 201     *win_x = wd->surface_x;
 202   if (win_y)
 203     *win_y = wd->surface_y;
 204   if (mask)
 205     *mask = wd->modifiers;
 206
 207   return TRUE;
 208 }
 209
 210 static GdkGrabStatus
 211 gdk_device_core_grab (GdkDevice    *device,
 212                       GdkWindow    *window,
 213                       gboolean      owner_events,
 214                       GdkEventMask  event_mask,
 215                       GdkWindow    *confine_to,
 216                       GdkCursor    *cursor,
 217                       guint32       time_)
 218 {
 219   GdkWaylandDevice *wayland_device = GDK_DEVICE_CORE (device)->device;
 220
 221   if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
 222     {
 223       /* Device is a keyboard */
 224       return GDK_GRAB_SUCCESS;
 225     }
 226   else
 227     {
 228       /* Device is a pointer */
 229
 230       if (wayland_device->pointer_grab_window != NULL &&
 231           time_ != 0 && wayland_device->pointer_grab_time > time_)
 232         {
 233           return GDK_GRAB_ALREADY_GRABBED;
 234         }
 235
 236       if (time_ == 0)
 237         time_ = wayland_device->time;
 238
 239       wayland_device->pointer_grab_window = window;
 240       wayland_device->pointer_grab_time = time_;
 241     }
 242
 243   return GDK_GRAB_SUCCESS;
 244 }
 245
 246 static void
 247 gdk_device_core_ungrab (GdkDevice *device,
 248                         guint32    time_)
 249 {
 250   GdkDisplay *display;
 251   GdkDeviceGrabInfo *grab;
 252
 253   display = gdk_device_get_display (device);
 254
 255   if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
 256     {
 257       /* Device is a keyboard */
 258     }
 259   else
 260     {
 261       /* Device is a pointer */
 262       grab = _gdk_display_get_last_device_grab (display, device);
 263
 264       if (grab)
 265         grab->serial_end = grab->serial_start;
 266     }
 267 }
 268
 269 static GdkWindow *
 270 gdk_device_core_window_at_position (GdkDevice       *device,
 271                                     gint            *win_x,
 272                                     gint            *win_y,
 273                                     GdkModifierType *mask,
 274                                     gboolean         get_toplevel)
 275 {
 276   GdkWaylandDevice *wd;
 277
 278   wd = GDK_DEVICE_CORE(device)->device;
 279   if (win_x)
 280     *win_x = wd->surface_x;
 281   if (win_y)
 282     *win_y = wd->surface_y;
 283   if (mask)
 284     *mask = wd->modifiers;
 285
 286   return wd->pointer_focus;
 287 }
 288
 289 static void
 290 gdk_device_core_select_window_events (GdkDevice    *device,
 291                                       GdkWindow    *window,
 292                                       GdkEventMask  event_mask)
 293 {
 294 }
 295
 296 static void
 297 gdk_device_core_class_init (GdkDeviceCoreClass *klass)
 298 {
 299   GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
 300
 301   device_class->get_history = gdk_device_core_get_history;
 302   device_class->get_state = gdk_device_core_get_state;
 303   device_class->set_window_cursor = gdk_device_core_set_window_cursor;
 304   device_class->warp = gdk_device_core_warp;
 305   device_class->query_state = gdk_device_core_query_state;
 306   device_class->grab = gdk_device_core_grab;
 307   device_class->ungrab = gdk_device_core_ungrab;
 308   device_class->window_at_position = gdk_device_core_window_at_position;
 309   device_class->select_window_events = gdk_device_core_select_window_events;
 310 }
 311
 312 static void
 313 gdk_device_core_init (GdkDeviceCore *device_core)
 314 {
 315   GdkDevice *device;
 316
 317   device = GDK_DEVICE (device_core);
 318
 319   _gdk_device_add_axis (device, GDK_NONE, GDK_AXIS_X, 0, 0, 1);
 320   _gdk_device_add_axis (device, GDK_NONE, GDK_AXIS_Y, 0, 0, 1);
 321 }
 322
 323 struct wl_input_device *
 324 _gdk_wayland_device_get_device (GdkDevice *device)
 325 {
 326   return GDK_DEVICE_CORE (device)->device->device;
 327 }
 328
 329 static void
 330 input_handle_motion(void *data, struct wl_input_device *input_device,
 331                     uint32_t time,
 332                     int32_t x, int32_t y, int32_t sx, int32_t sy)
 333 {
 334   GdkWaylandDevice *device = data;
 335   GdkDisplayWayland *display = GDK_DISPLAY_WAYLAND (device->display);
 336   GdkEvent *event;
 337
 338   event = gdk_event_new (GDK_NOTHING);
 339
 340   device->time = time;
 341   device->x = x;
 342   device->y = y;
 343   device->surface_x = sx;
 344   device->surface_y = sy;
 345
 346   event->motion.type = GDK_MOTION_NOTIFY;
 347   event->motion.window = g_object_ref (device->pointer_focus);
 348   gdk_event_set_device (event, device->pointer);
 349   event->motion.time = time;
 350   event->motion.x = (gdouble) sx;
 351   event->motion.y = (gdouble) sy;
 352   event->motion.x_root = (gdouble) x;
 353   event->motion.y_root = (gdouble) y;
 354   event->motion.axes = NULL;
 355   event->motion.state = device->modifiers;
 356   event->motion.is_hint = 0;
 357   gdk_event_set_screen (event, display->screen);
 358
 359   GDK_NOTE (EVENTS,
 360             g_message ("motion %d %d, state %d",
 361                        sx, sy, event->button.state));
 362
 363   _gdk_wayland_display_deliver_event (device->display, event);
 364 }
 365
 366 static void
 367 input_handle_button(void *data, struct wl_input_device *input_device,
 368                      uint32_t time, uint32_t button, uint32_t state)
 369 {
 370   GdkWaylandDevice *device = data;
 371   GdkDisplayWayland *display = GDK_DISPLAY_WAYLAND (device->display);
 372   GdkEvent *event;
 373   uint32_t modifier;
 374
 375   device->time = time;
 376   event = gdk_event_new (state ? GDK_BUTTON_PRESS : GDK_BUTTON_RELEASE);
 377   event->button.window = g_object_ref (device->pointer_focus);
 378   gdk_event_set_device (event, device->pointer);
 379   event->button.time = time;
 380   event->button.x = (gdouble) device->surface_x;
 381   event->button.y = (gdouble) device->surface_y;
 382   event->button.x_root = (gdouble) device->x;
 383   event->button.y_root = (gdouble) device->y;
 384   event->button.axes = NULL;
 385   event->button.state = device->modifiers;
 386   event->button.button = button - 271;
 387   gdk_event_set_screen (event, display->screen);
 388
 389   modifier = 1 << (8 + button - 272);
 390   if (state)
 391     device->modifiers |= modifier;
 392   else
 393     device->modifiers &= ~modifier;
 394
 395   GDK_NOTE (EVENTS,
 396             g_message ("button %d %s, state %d",
 397                        event->button.button,
 398                        state ? "press" : "release", event->button.state));
 399
 400   _gdk_wayland_display_deliver_event (device->display, event);
 401 }
 402
 403 static void
 404 translate_keyboard_string (GdkEventKey *event)
 405 {
 406   gunichar c = 0;
 407   gchar buf[7];
 408
 409   /* Fill in event->string crudely, since various programs
 410    * depend on it.
 411    */
 412   event->string = NULL;
 413
 414   if (event->keyval != GDK_KEY_VoidSymbol)
 415     c = gdk_keyval_to_unicode (event->keyval);
 416
 417   if (c)
 418     {
 419       gsize bytes_written;
 420       gint len;
 421
 422       /* Apply the control key - Taken from Xlib
 423        */
 424       if (event->state & GDK_CONTROL_MASK)
 425         {
 426           if ((c >= '@' && c < '\177') || c == ' ') c &= 0x1F;
 427           else if (c == '2')
 428             {
 429               event->string = g_memdup ("\0\0", 2);
 430               event->length = 1;
 431               buf[0] = '\0';
 432               return;
 433             }
 434           else if (c >= '3' && c <= '7') c -= ('3' - '\033');
 435           else if (c == '8') c = '\177';
 436           else if (c == '/') c = '_' & 0x1F;
 437         }
 438
 439       len = g_unichar_to_utf8 (c, buf);
 440       buf[len] = '\0';
 441
 442       event->string = g_locale_from_utf8 (buf, len,
 443                                           NULL, &bytes_written,
 444                                           NULL);
 445       if (event->string)
 446         event->length = bytes_written;
 447     }
 448   else if (event->keyval == GDK_KEY_Escape)
 449     {
 450       event->length = 1;
 451       event->string = g_strdup ("\033");
 452     }
 453   else if (event->keyval == GDK_KEY_Return ||
 454           event->keyval == GDK_KEY_KP_Enter)
 455     {
 456       event->length = 1;
 457       event->string = g_strdup ("\r");
 458     }
 459
 460   if (!event->string)
 461     {
 462       event->length = 0;
 463       event->string = g_strdup ("");
 464     }
 465 }
 466
 467 static void
 468 input_handle_key(void *data, struct wl_input_device *input_device,
 469                  uint32_t time, uint32_t key, uint32_t state)
 470 {
 471   GdkWaylandDevice *device = data;
 472   GdkEvent *event;
 473   uint32_t code, modifier, level;
 474   struct xkb_desc *xkb;
 475   GdkKeymap *keymap;
 476
 477   keymap = gdk_keymap_get_for_display (device->display);
 478   xkb = _gdk_wayland_keymap_get_xkb_desc (keymap);
 479
 480   device->time = time;
 481   event = gdk_event_new (state ? GDK_KEY_PRESS : GDK_KEY_RELEASE);
 482   event->key.window = g_object_ref (device->keyboard_focus);
 483   gdk_event_set_device (event, device->keyboard);
 484   event->button.time = time;
 485   event->key.state = device->modifiers;
 486   event->key.group = 0;
 487   code = key + xkb->min_key_code;
 488   event->key.hardware_keycode = code;
 489
 490   level = 0;
 491   if (device->modifiers & XKB_COMMON_SHIFT_MASK &&
 492       XkbKeyGroupWidth(xkb, code, 0) > 1)
 493     level = 1;
 494
 495   event->key.keyval = XkbKeySymEntry(xkb, code, level, 0);
 496
 497   modifier = xkb->map->modmap[code];
 498   if (state)
 499     device->modifiers |= modifier;
 500   else
 501     device->modifiers &= ~modifier;
 502
 503   event->key.is_modifier = modifier > 0;
 504
 505   translate_keyboard_string (&event->key);
 506
 507   _gdk_wayland_display_deliver_event (device->display, event);
 508
 509   GDK_NOTE (EVENTS,
 510             g_message ("keyboard event, code %d, sym %d, "
 511                        "string %s, mods 0x%x",
 512                        code, event->key.keyval,
 513                        event->key.string, event->key.state));
 514 }
 515
 516 static void
 517 input_handle_pointer_focus(void *data,
 518                            struct wl_input_device *input_device,
 519                            uint32_t time, struct wl_surface *surface,
 520                            int32_t x, int32_t y, int32_t sx, int32_t sy)
 521 {
 522   GdkWaylandDevice *device = data;
 523   GdkEvent *event;
 524
 525   device->time = time;
 526   if (device->pointer_focus)
 527     {
 528       event = gdk_event_new (GDK_LEAVE_NOTIFY);
 529       event->crossing.window = g_object_ref (device->pointer_focus);
 530       gdk_event_set_device (event, device->pointer);
 531       event->crossing.subwindow = NULL;
 532       event->crossing.time = time;
 533       event->crossing.x = (gdouble) device->surface_x;
 534       event->crossing.y = (gdouble) device->surface_y;
 535       event->crossing.x_root = (gdouble) device->x;
 536       event->crossing.y_root = (gdouble) device->y;
 537
 538       event->crossing.mode = GDK_CROSSING_NORMAL;
 539       event->crossing.detail = GDK_NOTIFY_ANCESTOR;
 540       event->crossing.focus = TRUE;
 541       event->crossing.state = 0;
 542
 543       _gdk_wayland_display_deliver_event (device->display, event);
 544
 545       GDK_NOTE (EVENTS,
 546                 g_message ("leave, device %p surface %p",
 547                            device, device->pointer_focus));
 548
 549       g_object_unref(device->pointer_focus);
 550       device->pointer_focus = NULL;
 551     }
 552
 553   if (surface)
 554     {
 555       device->pointer_focus = wl_surface_get_user_data(surface);
 556       g_object_ref(device->pointer_focus);
 557
 558       event = gdk_event_new (GDK_ENTER_NOTIFY);
 559       event->crossing.window = g_object_ref (device->pointer_focus);
 560       gdk_event_set_device (event, device->pointer);
 561       event->crossing.subwindow = NULL;
 562       event->crossing.time = time;
 563       event->crossing.x = (gdouble) sx;
 564       event->crossing.y = (gdouble) sy;
 565       event->crossing.x_root = (gdouble) x;
 566       event->crossing.y_root = (gdouble) y;
 567
 568       event->crossing.mode = GDK_CROSSING_NORMAL;
 569       event->crossing.detail = GDK_NOTIFY_ANCESTOR;
 570       event->crossing.focus = TRUE;
 571       event->crossing.state = 0;
 572
 573       device->surface_x = sx;
 574       device->surface_y = sy;
 575       device->x = x;
 576       device->y = y;
 577
 578       _gdk_wayland_display_deliver_event (device->display, event);
 579
 580       GDK_NOTE (EVENTS,
 581                 g_message ("enter, device %p surface %p",
 582                            device, device->pointer_focus));
 583     }
 584 }
 585
 586 static void
 587 update_modifiers(GdkWaylandDevice *device, struct wl_array *keys)
 588 {
 589   uint32_t *k, *end;
 590   GdkKeymap *keymap;
 591   struct xkb_desc *xkb;
 592
 593   keymap = gdk_keymap_get_for_display (device->display);
 594   xkb = _gdk_wayland_keymap_get_xkb_desc (keymap);
 595
 596   end = keys->data + keys->size;
 597   device->modifiers = 0;
 598   for (k = keys->data; k < end; k++)
 599     device->modifiers |= xkb->map->modmap[*k];
 600 }
 601
 602 static void
 603 input_handle_keyboard_focus(void *data,
 604                             struct wl_input_device *input_device,
 605                             uint32_t time,
 606                             struct wl_surface *surface,
 607                             struct wl_array *keys)
 608 {
 609   GdkWaylandDevice *device = data;
 610   GdkEvent *event;
 611
 612   device->time = time;
 613   if (device->keyboard_focus)
 614     {
 615       event = gdk_event_new (GDK_FOCUS_CHANGE);
 616       event->focus_change.window = g_object_ref (device->keyboard_focus);
 617       event->focus_change.send_event = FALSE;
 618       event->focus_change.in = FALSE;
 619       gdk_event_set_device (event, device->keyboard);
 620
 621       g_object_unref(device->keyboard_focus);
 622       device->keyboard_focus = NULL;
 623
 624       GDK_NOTE (EVENTS,
 625                 g_message ("focus out, device %p surface %p",
 626                            device, device->keyboard_focus));
 627
 628       _gdk_wayland_display_deliver_event (device->display, event);
 629     }
 630
 631   if (surface)
 632     {
 633       device->keyboard_focus = wl_surface_get_user_data(surface);
 634       g_object_ref(device->keyboard_focus);
 635
 636       event = gdk_event_new (GDK_FOCUS_CHANGE);
 637       event->focus_change.window = g_object_ref (device->keyboard_focus);
 638       event->focus_change.send_event = FALSE;
 639       event->focus_change.in = TRUE;
 640       gdk_event_set_device (event, device->keyboard);
 641
 642       update_modifiers (device, keys);
 643
 644       GDK_NOTE (EVENTS,
 645                 g_message ("focus int, device %p surface %p",
 646                            device, device->keyboard_focus));
 647
 648       _gdk_wayland_display_deliver_event (device->display, event);
 649     }
 650 }
 651
 652 static const struct wl_input_device_listener input_device_listener = {
 653   input_handle_motion,
 654   input_handle_button,
 655   input_handle_key,
 656   input_handle_pointer_focus,
 657   input_handle_keyboard_focus,
 658 };
 659
 660 struct _DataOffer {
 661   struct wl_data_offer *offer;
 662   gint ref_count;
 663   GPtrArray *types;
 664 };
 665
 666 static void
 667 data_offer_offer (void                 *data,
 668                   struct wl_data_offer *wl_data_offer,
 669                   const char           *type)
 670 {
 671   DataOffer *offer = (DataOffer *)data;
 672   g_debug (G_STRLOC ": %s wl_data_offer = %p type = %s",
 673            G_STRFUNC, wl_data_offer, type);
 674
 675   g_ptr_array_add (offer->types, g_strdup (type));
 676 }
 677
 678 static void
 679 data_offer_unref (DataOffer *offer)
 680 {
 681   offer->ref_count--;
 682
 683   if (offer->ref_count == 0)
 684     {
 685       g_ptr_array_free (offer->types, TRUE);
 686       g_free (offer);
 687     }
 688 }
 689
 690 static const struct wl_data_offer_listener data_offer_listener = {
 691   data_offer_offer,
 692 };
 693
 694 static void
 695 data_device_data_offer (void                  *data,
 696                         struct wl_data_device *data_device,
 697                         uint32_t               id)
 698 {
 699   DataOffer *offer;
 700
 701   g_debug (G_STRLOC ": %s data_device = %p id = %lu",
 702            G_STRFUNC, data_device, (long unsigned int)id);
 703
 704   /* This structure is reference counted to handle the case where you get a
 705    * leave but are in the middle of transferring data
 706    */
 707   offer = g_new0 (DataOffer, 1);
 708   offer->ref_count = 1;
 709   offer->types = g_ptr_array_new_with_free_func (g_free);
 710   offer->offer = (struct wl_data_offer *)
 711     wl_proxy_create_for_id ((struct wl_proxy *) data_device,
 712                             id,
 713                             &wl_data_offer_interface);
 714
 715   /* The DataOffer structure is then retrieved later since this sets the user
 716    * data.
 717    */
 718   wl_data_offer_add_listener (offer->offer,
 719                               &data_offer_listener,
 720                               offer);
 721 }
 722
 723 static void
 724 data_device_enter (void                  *data,
 725                    struct wl_data_device *data_device,
 726                    uint32_t               time,
 727                    struct wl_surface     *surface,
 728                    int32_t                x,
 729                    int32_t                y,
 730                    struct wl_data_offer  *offer)
 731 {
 732   GdkWaylandDevice *device = (GdkWaylandDevice *)data;
 733
 734   g_debug (G_STRLOC ": %s data_device = %p time = %d, surface = %p, x = %d y = %d, offer = %p",
 735            G_STRFUNC, data_device, time, surface, x, y, offer);
 736
 737   /* Retrieve the DataOffer associated with with the wl_data_offer - this
 738    * association is made when the listener is attached.
 739    */
 740   g_assert (device->drag_offer == NULL);
 741   device->drag_offer = wl_data_offer_get_user_data (offer);
 742 }
 743
 744 static void
 745 data_device_leave (void                  *data,
 746                    struct wl_data_device *data_device)
 747 {
 748   GdkWaylandDevice *device = (GdkWaylandDevice *)data;
 749
 750   g_debug (G_STRLOC ": %s data_device = %p",
 751            G_STRFUNC, data_device);
 752
 753   data_offer_unref (device->drag_offer);
 754   device->drag_offer = NULL;
 755 }
 756
 757 static void
 758 data_device_motion (void                  *data,
 759                     struct wl_data_device *data_device,
 760                     uint32_t               time,
 761                     int32_t                x,
 762                     int32_t                y)
 763 {
 764   g_debug (G_STRLOC ": %s data_device = %p, time = %d, x = %d, y = %d",
 765            G_STRFUNC, data_device, time, x, y);
 766 }
 767
 768 static void
 769 data_device_drop (void                  *data,
 770                   struct wl_data_device *data_device)
 771 {
 772   g_debug (G_STRLOC ": %s data_device = %p",
 773            G_STRFUNC, data_device);
 774 }
 775
 776 static void
 777 data_device_selection (void                  *data,
 778                        struct wl_data_device *wl_data_device,
 779                        struct wl_data_offer  *offer)
 780 {
 781   GdkWaylandDevice *device = (GdkWaylandDevice *)data;
 782
 783   g_debug (G_STRLOC ": %s wl_data_device = %p wl_data_offer = %p",
 784            G_STRFUNC, wl_data_device, offer);
 785
 786   if (device->selection_offer)
 787     {
 788       data_offer_unref (device->selection_offer);
 789       device->selection_offer = NULL;
 790     }
 791
 792   /* Retrieve the DataOffer associated with with the wl_data_offer - this
 793    * association is made when the listener is attached.
 794    */
 795   g_assert (device->selection_offer == NULL);
 796   device->selection_offer = wl_data_offer_get_user_data (offer);
 797 }
 798
 799 static const struct wl_data_device_listener data_device_listener = {
 800   data_device_data_offer,
 801   data_device_enter,
 802   data_device_leave,
 803   data_device_motion,
 804   data_device_drop,
 805   data_device_selection
 806 };
 807
 808 void
 809 _gdk_wayland_device_manager_add_device (GdkDeviceManager *device_manager,
 810                                         struct wl_input_device *wl_device)
 811 {
 812   GdkDisplay *display;
 813   GdkDisplayWayland *display_wayland;
 814   GdkDeviceManagerCore *device_manager_core =
 815     GDK_DEVICE_MANAGER_CORE(device_manager);
 816   GdkWaylandDevice *device;
 817
 818   device = g_new0 (GdkWaylandDevice, 1);
 819   display = gdk_device_manager_get_display (device_manager);
 820   display_wayland = GDK_DISPLAY_WAYLAND (display);
 821
 822   device->display = display;
 823   device->pointer = g_object_new (GDK_TYPE_DEVICE_CORE,
 824                                   "name", "Core Pointer",
 825                                   "type", GDK_DEVICE_TYPE_MASTER,
 826                                   "input-source", GDK_SOURCE_MOUSE,
 827                                   "input-mode", GDK_MODE_SCREEN,
 828                                   "has-cursor", TRUE,
 829                                   "display", display,
 830                                   "device-manager", device_manager,
 831                                   NULL);
 832
 833   device->keyboard = g_object_new (GDK_TYPE_DEVICE_CORE,
 834                                    "name", "Core Keyboard",
 835                                    "type", GDK_DEVICE_TYPE_MASTER,
 836                                    "input-source", GDK_SOURCE_KEYBOARD,
 837                                    "input-mode", GDK_MODE_SCREEN,
 838                                    "has-cursor", FALSE,
 839                                    "display", display,
 840                                    "device-manager", device_manager,
 841                                    NULL);
 842
 843   GDK_DEVICE_CORE (device->pointer)->device = device;
 844   GDK_DEVICE_CORE (device->keyboard)->device = device;
 845   device->device = wl_device;
 846
 847   wl_input_device_add_listener(device->device,
 848                                &input_device_listener, device);
 849
 850   device->data_device =
 851     wl_data_device_manager_get_data_device (display_wayland->data_device_manager,
 852                                             device->device);
 853   wl_data_device_add_listener (device->data_device,
 854                                &data_device_listener, device);
 855
 856   device_manager_core->devices =
 857     g_list_prepend (device_manager_core->devices, device->keyboard);
 858   device_manager_core->devices =
 859     g_list_prepend (device_manager_core->devices, device->pointer);
 860
 861   _gdk_device_set_associated_device (device->pointer, device->keyboard);
 862   _gdk_device_set_associated_device (device->keyboard, device->pointer);
 863 }
 864
 865 static void
 866 free_device (gpointer data)
 867 {
 868   g_object_unref (data);
 869 }
 870
 871 static void
 872 gdk_device_manager_core_finalize (GObject *object)
 873 {
 874   GdkDeviceManagerCore *device_manager_core;
 875
 876   device_manager_core = GDK_DEVICE_MANAGER_CORE (object);
 877
 878   g_list_free_full (device_manager_core->devices, free_device);
 879
 880   G_OBJECT_CLASS (gdk_device_manager_core_parent_class)->finalize (object);
 881 }
 882
 883 static GList *
 884 gdk_device_manager_core_list_devices (GdkDeviceManager *device_manager,
 885                                       GdkDeviceType     type)
 886 {
 887   GdkDeviceManagerCore *device_manager_core;
 888   GList *devices = NULL;
 889
 890   if (type == GDK_DEVICE_TYPE_MASTER)
 891     {
 892       device_manager_core = (GdkDeviceManagerCore *) device_manager;
 893       devices = g_list_copy(device_manager_core->devices);
 894     }
 895
 896   return devices;
 897 }
 898
 899 static GdkDevice *
 900 gdk_device_manager_core_get_client_pointer (GdkDeviceManager *device_manager)
 901 {
 902   GdkDeviceManagerCore *device_manager_core;
 903
 904   device_manager_core = (GdkDeviceManagerCore *) device_manager;
 905   return device_manager_core->devices->data;
 906 }
 907
 908 static void
 909 gdk_device_manager_core_class_init (GdkDeviceManagerCoreClass *klass)
 910 {
 911   GdkDeviceManagerClass *device_manager_class = GDK_DEVICE_MANAGER_CLASS (klass);
 912   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 913
 914   object_class->finalize = gdk_device_manager_core_finalize;
 915   device_manager_class->list_devices = gdk_device_manager_core_list_devices;
 916   device_manager_class->get_client_pointer = gdk_device_manager_core_get_client_pointer;
 917 }
 918
 919 static void
 920 gdk_device_manager_core_init (GdkDeviceManagerCore *device_manager)
 921 {
 922 }
 923
 924 GdkDeviceManager *
 925 _gdk_wayland_device_manager_new (GdkDisplay *display)
 926 {
 927   return g_object_new (GDK_TYPE_DEVICE_MANAGER_CORE,
 928                        "display", display,
 929                        NULL);
 930 }
 931
 932 gint
 933 gdk_wayland_device_get_selection_type_atoms (GdkDevice  *gdk_device,
 934                                              GdkAtom   **atoms_out)
 935 {
 936   gint i;
 937   GdkAtom *atoms;
 938   GdkWaylandDevice *device;
 939
 940   g_return_val_if_fail (GDK_IS_DEVICE_CORE (gdk_device), 0);
 941   g_return_val_if_fail (atoms_out != NULL, 0);
 942
 943   device = GDK_DEVICE_CORE (gdk_device)->device;
 944
 945   if (device->selection_offer->types->len == 0)
 946     {
 947       *atoms_out = NULL;
 948       return 0;
 949     }
 950
 951   atoms = g_new0 (GdkAtom, device->selection_offer->types->len);
 952
 953   /* Convert list of targets to atoms */
 954   for (i = 0; i < device->selection_offer->types->len; i++)
 955     {
 956       atoms[i] = gdk_atom_intern (device->selection_offer->types->pdata[i],
 957                                   FALSE);
 958       GDK_NOTE (MISC,
 959                 g_message (G_STRLOC ": Adding atom for %s",
 960                            (char *)device->selection_offer->types->pdata[i]));
 961     }
 962
 963   *atoms_out = atoms;
 964   return device->selection_offer->types->len;
 965 }
 966
 967 typedef struct
 968 {
 969   GdkWaylandDevice *device;
 970   DataOffer *offer;
 971   GIOChannel *channel;
 972   GdkDeviceWaylandRequestContentCallback cb;
 973   gpointer userdata;
 974 } RequestContentClosure;
 975
 976 static gboolean
 977 _request_content_io_func (GIOChannel *channel,
 978                           GIOCondition condition,
 979                           gpointer userdata)
 980 {
 981   RequestContentClosure *closure = (RequestContentClosure *)userdata;
 982   gchar *data = NULL;
 983   gsize len = 0;
 984   GError *error = NULL;
 985
 986   /* FIXME: We probably want to do something better than this to avoid
 987    * blocking on the transfer of large pieces of data: call the callback
 988    * multiple times I should think.
 989    */
 990   if (g_io_channel_read_to_end (channel,
 991                                 &data,
 992                                 &len,
 993                                 &error) != G_IO_STATUS_NORMAL)
 994     {
 995       g_warning (G_STRLOC ": Error reading content from pipe: %s", error->message);
 996       g_clear_error (&error);
 997     }
 998
 999   /* Since we use _read_to_end we've got a guaranteed EOF and thus can go
1000    * ahead and close the fd
1001    */
1002   g_io_channel_shutdown (channel, TRUE, NULL);
1003
1004   closure->cb (closure->device->pointer, data, len, closure->userdata);
1005
1006   data_offer_unref (closure->offer);
1007   g_io_channel_unref (channel);
1008   g_free (closure);
1009
1010   return FALSE;
1011 }
1012
1013 gboolean
1014 gdk_wayland_device_request_selection_content (GdkDevice                              *gdk_device,
1015                                               const gchar                            *requested_mime_type,
1016                                               GdkDeviceWaylandRequestContentCallback  cb,
1017                                               gpointer                                userdata)
1018 {
1019   int pipe_fd[2];
1020   RequestContentClosure *closure;
1021   GdkWaylandDevice *device;
1022   GError *error = NULL;
1023
1024   g_return_val_if_fail (GDK_IS_DEVICE_CORE (gdk_device), FALSE);
1025   g_return_val_if_fail (requested_mime_type != NULL, FALSE);
1026   g_return_val_if_fail (cb != NULL, FALSE);
1027
1028   device = GDK_DEVICE_CORE (gdk_device)->device;
1029
1030   if (!device->selection_offer)
1031       return FALSE;
1032
1033   /* TODO: Check mimetypes */
1034
1035   closure = g_new0 (RequestContentClosure, 1);
1036
1037   device->selection_offer->ref_count++;
1038
1039   pipe2 (pipe_fd, O_CLOEXEC);
1040   wl_data_offer_receive (device->selection_offer->offer,
1041                          requested_mime_type,
1042                          pipe_fd[1]);
1043   close (pipe_fd[1]);
1044
1045   closure->device = device;
1046   closure->offer = device->selection_offer;
1047   closure->channel = g_io_channel_unix_new (pipe_fd[0]);
1048   closure->cb = cb;
1049   closure->userdata = userdata;
1050
1051   if (!g_io_channel_set_encoding (closure->channel, NULL, &error))
1052     {
1053       g_warning (G_STRLOC ": Error setting encoding on channel: %s",
1054                  error->message);
1055       g_clear_error (&error);
1056       goto error;
1057     }
1058
1059   g_io_add_watch (closure->channel,
1060                   G_IO_IN,
1061                   _request_content_io_func,
1062                   closure);
1063
1064   return TRUE;
1065
1066 error:
1067   data_offer_unref (closure->offer);
1068   g_io_channel_unref (closure->channel);
1069   close (pipe_fd[1]);
1070   g_free (closure);
1071
1072   return FALSE;
1073 }