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gtk2/gdk/wayland/gdkdevice-wayland.c
Benjamin Otte 114b45c7eb gdk: Make query_state() vfunc a void vfunc 
... and make sure the backends implement it that way.

query_state() return value was ignored in all of GDK and caused crashes
when it failed.
2012-03-09 13:23:05 +01:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include "config.h"
#include <string.h>
#include <gdk/gdkwindow.h>
#include <gdk/gdktypes.h>
#include "gdkprivate-wayland.h"
#include "gdkwayland.h"
#include "gdkkeysyms.h"
#include "gdkdeviceprivate.h"
#include "gdkdevicemanagerprivate.h"
#include "gdkprivate-wayland.h"
#include <X11/extensions/XKBcommon.h>
#include <X11/keysym.h>
#include <sys/time.h>
#define GDK_TYPE_DEVICE_CORE (gdk_device_core_get_type ())
#define GDK_DEVICE_CORE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GDK_TYPE_DEVICE_CORE, GdkDeviceCore))
#define GDK_DEVICE_CORE_CLASS(c) (G_TYPE_CHECK_CLASS_CAST ((c), GDK_TYPE_DEVICE_CORE, GdkDeviceCoreClass))
#define GDK_IS_DEVICE_CORE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GDK_TYPE_DEVICE_CORE))
#define GDK_IS_DEVICE_CORE_CLASS(c) (G_TYPE_CHECK_CLASS_TYPE ((c), GDK_TYPE_DEVICE_CORE))
#define GDK_DEVICE_CORE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GDK_TYPE_DEVICE_CORE, GdkDeviceCoreClass))
typedef struct _GdkDeviceCore GdkDeviceCore;
typedef struct _GdkDeviceCoreClass GdkDeviceCoreClass;
typedef struct _GdkWaylandDevice GdkWaylandDevice;
typedef struct _DataOffer DataOffer;
typedef struct _GdkWaylandSelectionOffer GdkWaylandSelectionOffer;
struct _GdkWaylandDevice
{
GdkDisplay *display;
GdkDevice *pointer;
GdkDevice *keyboard;
GdkModifierType modifiers;
GdkWindow *pointer_focus;
GdkWindow *keyboard_focus;
struct wl_input_device *device;
struct wl_data_device *data_device;
int32_t x, y, surface_x, surface_y;
uint32_t time;
GdkWindow *pointer_grab_window;
uint32_t pointer_grab_time;
guint32 repeat_timer;
guint32 repeat_key;
guint32 repeat_count;
DataOffer *drag_offer;
DataOffer *selection_offer;
GdkWaylandSelectionOffer *selection_offer_out;
};
struct _GdkDeviceCore
{
GdkDevice parent_instance;
GdkWaylandDevice *device;
};
struct _GdkDeviceCoreClass
{
GdkDeviceClass parent_class;
};
G_DEFINE_TYPE (GdkDeviceCore, gdk_device_core, GDK_TYPE_DEVICE)
#define GDK_TYPE_DEVICE_MANAGER_CORE (gdk_device_manager_core_get_type ())
#define GDK_DEVICE_MANAGER_CORE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GDK_TYPE_DEVICE_MANAGER_CORE, GdkDeviceManagerCore))
#define GDK_DEVICE_MANAGER_CORE_CLASS(c) (G_TYPE_CHECK_CLASS_CAST ((c), GDK_TYPE_DEVICE_MANAGER_CORE, GdkDeviceManagerCoreClass))
#define GDK_IS_DEVICE_MANAGER_CORE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GDK_TYPE_DEVICE_MANAGER_CORE))
#define GDK_IS_DEVICE_MANAGER_CORE_CLASS(c) (G_TYPE_CHECK_CLASS_TYPE ((c), GDK_TYPE_DEVICE_MANAGER_CORE))
#define GDK_DEVICE_MANAGER_CORE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GDK_TYPE_DEVICE_MANAGER_CORE, GdkDeviceManagerCoreClass))
typedef struct _GdkDeviceManagerCore GdkDeviceManagerCore;
typedef struct _GdkDeviceManagerCoreClass GdkDeviceManagerCoreClass;
struct _GdkDeviceManagerCore
{
GdkDeviceManager parent_object;
GdkDevice *core_pointer;
GdkDevice *core_keyboard;
GList *devices;
};
struct _GdkDeviceManagerCoreClass
{
GdkDeviceManagerClass parent_class;
};
G_DEFINE_TYPE (GdkDeviceManagerCore,
gdk_device_manager_core, GDK_TYPE_DEVICE_MANAGER)
static gboolean
gdk_device_core_get_history (GdkDevice *device,
GdkWindow *window,
guint32 start,
guint32 stop,
GdkTimeCoord ***events,
gint *n_events)
{
return FALSE;
}
static void
gdk_device_core_get_state (GdkDevice *device,
GdkWindow *window,
gdouble *axes,
GdkModifierType *mask)
{
gint x_int, y_int;
gdk_window_get_device_position (window, device, &x_int, &y_int, mask);
if (axes)
{
axes[0] = x_int;
axes[1] = y_int;
}
}
static void
gdk_device_core_set_window_cursor (GdkDevice *device,
GdkWindow *window,
GdkCursor *cursor)
{
GdkWaylandDevice *wd = GDK_DEVICE_CORE(device)->device;
struct wl_buffer *buffer;
int x, y;
if (cursor)
g_object_ref (cursor);
/* Setting the cursor to NULL means that we should use the default cursor */
if (!cursor)
{
/* FIXME: Is this the best sensible default ? */
cursor = _gdk_wayland_display_get_cursor_for_type (device->display,
GDK_LEFT_PTR);
}
buffer = _gdk_wayland_cursor_get_buffer(cursor, &x, &y);
wl_input_device_attach(wd->device, wd->time, buffer, x, y);
g_object_unref (cursor);
}
static void
gdk_device_core_warp (GdkDevice *device,
GdkScreen *screen,
gint x,
gint y)
{
}
static void
gdk_device_core_query_state (GdkDevice *device,
GdkWindow *window,
GdkWindow **root_window,
GdkWindow **child_window,
gint *root_x,
gint *root_y,
gint *win_x,
gint *win_y,
GdkModifierType *mask)
{
GdkWaylandDevice *wd;
GdkScreen *default_screen;
wd = GDK_DEVICE_CORE(device)->device;
default_screen = gdk_display_get_default_screen (wd->display);
if (root_window)
*root_window = gdk_screen_get_root_window (default_screen);
if (child_window)
*child_window = wd->pointer_focus;
if (root_x)
*root_x = wd->x;
if (root_y)
*root_y = wd->y;
if (win_x)
*win_x = wd->surface_x;
if (win_y)
*win_y = wd->surface_y;
if (mask)
*mask = wd->modifiers;
}
static GdkGrabStatus
gdk_device_core_grab (GdkDevice *device,
GdkWindow *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time_)
{
GdkWaylandDevice *wayland_device = GDK_DEVICE_CORE (device)->device;
if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
{
/* Device is a keyboard */
return GDK_GRAB_SUCCESS;
}
else
{
/* Device is a pointer */
if (wayland_device->pointer_grab_window != NULL &&
time_ != 0 && wayland_device->pointer_grab_time > time_)
{
return GDK_GRAB_ALREADY_GRABBED;
}
if (time_ == 0)
time_ = wayland_device->time;
wayland_device->pointer_grab_window = window;
wayland_device->pointer_grab_time = time_;
/* FIXME: This probably breaks if you end up with multiple grabs on the
* same window - but we need to know the input device for when we are
* asked to map a popup window so that the grab can be managed by the
* compositor.
*/
_gdk_wayland_window_set_device_grabbed (window,
wayland_device->device,
time_);
}
return GDK_GRAB_SUCCESS;
}
static void
gdk_device_core_ungrab (GdkDevice *device,
guint32 time_)
{
GdkWaylandDevice *wayland_device = GDK_DEVICE_CORE (device)->device;
GdkDisplay *display;
GdkDeviceGrabInfo *grab;
display = gdk_device_get_display (device);
if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
{
/* Device is a keyboard */
}
else
{
/* Device is a pointer */
grab = _gdk_display_get_last_device_grab (display, device);
if (grab)
grab->serial_end = grab->serial_start;
if (wayland_device->pointer_grab_window)
_gdk_wayland_window_set_device_grabbed (wayland_device->pointer_grab_window,
NULL,
0);
}
}
static GdkWindow *
gdk_device_core_window_at_position (GdkDevice *device,
gint *win_x,
gint *win_y,
GdkModifierType *mask,
gboolean get_toplevel)
{
GdkWaylandDevice *wd;
wd = GDK_DEVICE_CORE(device)->device;
if (win_x)
*win_x = wd->surface_x;
if (win_y)
*win_y = wd->surface_y;
if (mask)
*mask = wd->modifiers;
return wd->pointer_focus;
}
static void
gdk_device_core_select_window_events (GdkDevice *device,
GdkWindow *window,
GdkEventMask event_mask)
{
}
static void
gdk_device_core_class_init (GdkDeviceCoreClass *klass)
{
GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
device_class->get_history = gdk_device_core_get_history;
device_class->get_state = gdk_device_core_get_state;
device_class->set_window_cursor = gdk_device_core_set_window_cursor;
device_class->warp = gdk_device_core_warp;
device_class->query_state = gdk_device_core_query_state;
device_class->grab = gdk_device_core_grab;
device_class->ungrab = gdk_device_core_ungrab;
device_class->window_at_position = gdk_device_core_window_at_position;
device_class->select_window_events = gdk_device_core_select_window_events;
}
static void
gdk_device_core_init (GdkDeviceCore *device_core)
{
GdkDevice *device;
device = GDK_DEVICE (device_core);
_gdk_device_add_axis (device, GDK_NONE, GDK_AXIS_X, 0, 0, 1);
_gdk_device_add_axis (device, GDK_NONE, GDK_AXIS_Y, 0, 0, 1);
}
struct wl_input_device *
_gdk_wayland_device_get_device (GdkDevice *device)
{
return GDK_DEVICE_CORE (device)->device->device;
}
static void
input_handle_motion(void *data, struct wl_input_device *input_device,
uint32_t time,
int32_t x, int32_t y, int32_t sx, int32_t sy)
{
GdkWaylandDevice *device = data;
GdkDisplayWayland *display = GDK_DISPLAY_WAYLAND (device->display);
GdkEvent *event;
event = gdk_event_new (GDK_NOTHING);
device->time = time;
device->x = x;
device->y = y;
device->surface_x = sx;
device->surface_y = sy;
event->motion.type = GDK_MOTION_NOTIFY;
event->motion.window = g_object_ref (device->pointer_focus);
gdk_event_set_device (event, device->pointer);
event->motion.time = time;
event->motion.x = (gdouble) sx;
event->motion.y = (gdouble) sy;
event->motion.x_root = (gdouble) x;
event->motion.y_root = (gdouble) y;
event->motion.axes = NULL;
event->motion.state = device->modifiers;
event->motion.is_hint = 0;
gdk_event_set_screen (event, display->screen);
GDK_NOTE (EVENTS,
g_message ("motion %d %d, state %d",
sx, sy, event->button.state));
_gdk_wayland_display_deliver_event (device->display, event);
}
static void
input_handle_button(void *data, struct wl_input_device *input_device,
uint32_t time, uint32_t button, uint32_t state)
{
GdkWaylandDevice *device = data;
GdkDisplayWayland *display = GDK_DISPLAY_WAYLAND (device->display);
GdkEvent *event;
uint32_t modifier;
int gdk_button;
switch (button) {
case 273:
gdk_button = 3;
break;
case 274:
gdk_button = 2;
break;
default:
gdk_button = button - 271;
break;
}
device->time = time;
event = gdk_event_new (state ? GDK_BUTTON_PRESS : GDK_BUTTON_RELEASE);
event->button.window = g_object_ref (device->pointer_focus);
gdk_event_set_device (event, device->pointer);
event->button.time = time;
event->button.x = (gdouble) device->surface_x;
event->button.y = (gdouble) device->surface_y;
event->button.x_root = (gdouble) device->x;
event->button.y_root = (gdouble) device->y;
event->button.axes = NULL;
event->button.state = device->modifiers;
event->button.button = gdk_button;
gdk_event_set_screen (event, display->screen);
modifier = 1 << (8 + gdk_button - 1);
if (state)
device->modifiers |= modifier;
else
device->modifiers &= ~modifier;
GDK_NOTE (EVENTS,
g_message ("button %d %s, state %d",
event->button.button,
state ? "press" : "release", event->button.state));
_gdk_wayland_display_deliver_event (device->display, event);
}
static void
translate_keyboard_string (GdkEventKey *event)
{
gunichar c = 0;
gchar buf[7];
/* Fill in event->string crudely, since various programs
* depend on it.
*/
event->string = NULL;
if (event->keyval != GDK_KEY_VoidSymbol)
c = gdk_keyval_to_unicode (event->keyval);
if (c)
{
gsize bytes_written;
gint len;
/* Apply the control key - Taken from Xlib
*/
if (event->state & GDK_CONTROL_MASK)
{
if ((c >= '@' && c < '\177') || c == ' ') c &= 0x1F;
else if (c == '2')
{
event->string = g_memdup ("\0\0", 2);
event->length = 1;
buf[0] = '\0';
return;
}
else if (c >= '3' && c <= '7') c -= ('3' - '\033');
else if (c == '8') c = '\177';
else if (c == '/') c = '_' & 0x1F;
}
len = g_unichar_to_utf8 (c, buf);
buf[len] = '\0';
event->string = g_locale_from_utf8 (buf, len,
NULL, &bytes_written,
NULL);
if (event->string)
event->length = bytes_written;
}
else if (event->keyval == GDK_KEY_Escape)
{
event->length = 1;
event->string = g_strdup ("\033");
}
else if (event->keyval == GDK_KEY_Return ||
event->keyval == GDK_KEY_KP_Enter)
{
event->length = 1;
event->string = g_strdup ("\r");
}
if (!event->string)
{
event->length = 0;
event->string = g_strdup ("");
}
}
static gboolean
keyboard_repeat (gpointer data);
static gboolean
deliver_key_event(GdkWaylandDevice *device,
uint32_t time, uint32_t key, uint32_t state)
{
GdkEvent *event;
uint32_t code, modifier, level;
struct xkb_desc *xkb;
GdkKeymap *keymap;
keymap = gdk_keymap_get_for_display (device->display);
xkb = _gdk_wayland_keymap_get_xkb_desc (keymap);
device->time = time;
event = gdk_event_new (state ? GDK_KEY_PRESS : GDK_KEY_RELEASE);
event->key.window = g_object_ref (device->keyboard_focus);
gdk_event_set_device (event, device->keyboard);
event->button.time = time;
event->key.state = device->modifiers;
event->key.group = 0;
code = key + xkb->min_key_code;
event->key.hardware_keycode = code;
level = 0;
if (device->modifiers & XKB_COMMON_SHIFT_MASK &&
XkbKeyGroupWidth(xkb, code, 0) > 1)
level = 1;
event->key.keyval = XkbKeySymEntry(xkb, code, level, 0);
modifier = xkb->map->modmap[code];
if (state)
device->modifiers |= modifier;
else
device->modifiers &= ~modifier;
event->key.is_modifier = modifier > 0;
translate_keyboard_string (&event->key);
_gdk_wayland_display_deliver_event (device->display, event);
GDK_NOTE (EVENTS,
g_message ("keyboard event, code %d, sym %d, "
"string %s, mods 0x%x",
code, event->key.keyval,
event->key.string, event->key.state));
device->repeat_count++;
device->repeat_key = key;
if (state == 0)
{
if (device->repeat_timer)
{
g_source_remove (device->repeat_timer);
device->repeat_timer = 0;
}
return FALSE;
}
else if (modifier)
{
return FALSE;
}
else switch (device->repeat_count)
{
case 1:
if (device->repeat_timer)
{
g_source_remove (device->repeat_timer);
device->repeat_timer = 0;
}
device->repeat_timer =
gdk_threads_add_timeout (400, keyboard_repeat, device);
return TRUE;
case 2:
device->repeat_timer =
gdk_threads_add_timeout (80, keyboard_repeat, device);
return FALSE;
default:
return TRUE;
}
}
static gboolean
keyboard_repeat (gpointer data)
{
GdkWaylandDevice *device = data;
return deliver_key_event (device, device->time, device->repeat_key, 1);
}
static void
input_handle_key(void *data, struct wl_input_device *input_device,
uint32_t time, uint32_t key, uint32_t state)
{
GdkWaylandDevice *device = data;
device->repeat_count = 0;
deliver_key_event (data, time, key, state);
}
static void
input_handle_pointer_focus(void *data,
struct wl_input_device *input_device,
uint32_t time, struct wl_surface *surface,
int32_t x, int32_t y, int32_t sx, int32_t sy)
{
GdkWaylandDevice *device = data;
GdkEvent *event;
device->time = time;
if (device->pointer_focus)
{
event = gdk_event_new (GDK_LEAVE_NOTIFY);
event->crossing.window = g_object_ref (device->pointer_focus);
gdk_event_set_device (event, device->pointer);
event->crossing.subwindow = NULL;
event->crossing.time = time;
event->crossing.x = (gdouble) device->surface_x;
event->crossing.y = (gdouble) device->surface_y;
event->crossing.x_root = (gdouble) device->x;
event->crossing.y_root = (gdouble) device->y;
event->crossing.mode = GDK_CROSSING_NORMAL;
event->crossing.detail = GDK_NOTIFY_ANCESTOR;
event->crossing.focus = TRUE;
event->crossing.state = 0;
_gdk_wayland_display_deliver_event (device->display, event);
GDK_NOTE (EVENTS,
g_message ("leave, device %p surface %p",
device, device->pointer_focus));
g_object_unref(device->pointer_focus);
device->pointer_focus = NULL;
}
if (surface)
{
device->pointer_focus = wl_surface_get_user_data(surface);
g_object_ref(device->pointer_focus);
event = gdk_event_new (GDK_ENTER_NOTIFY);
event->crossing.window = g_object_ref (device->pointer_focus);
gdk_event_set_device (event, device->pointer);
event->crossing.subwindow = NULL;
event->crossing.time = time;
event->crossing.x = (gdouble) sx;
event->crossing.y = (gdouble) sy;
event->crossing.x_root = (gdouble) x;
event->crossing.y_root = (gdouble) y;
event->crossing.mode = GDK_CROSSING_NORMAL;
event->crossing.detail = GDK_NOTIFY_ANCESTOR;
event->crossing.focus = TRUE;
event->crossing.state = 0;
device->surface_x = sx;
device->surface_y = sy;
device->x = x;
device->y = y;
_gdk_wayland_display_deliver_event (device->display, event);
GDK_NOTE (EVENTS,
g_message ("enter, device %p surface %p",
device, device->pointer_focus));
}
}
static void
update_modifiers(GdkWaylandDevice *device, struct wl_array *keys)
{
uint32_t *k, *end;
GdkKeymap *keymap;
struct xkb_desc *xkb;
keymap = gdk_keymap_get_for_display (device->display);
xkb = _gdk_wayland_keymap_get_xkb_desc (keymap);
end = keys->data + keys->size;
device->modifiers = 0;
for (k = keys->data; k < end; k++)
device->modifiers |= xkb->map->modmap[*k];
}
static void
input_handle_keyboard_focus(void *data,
struct wl_input_device *input_device,
uint32_t time,
struct wl_surface *surface,
struct wl_array *keys)
{
GdkWaylandDevice *device = data;
GdkEvent *event;
device->time = time;
if (device->keyboard_focus)
{
_gdk_wayland_window_remove_focus (device->keyboard_focus);
event = gdk_event_new (GDK_FOCUS_CHANGE);
event->focus_change.window = g_object_ref (device->keyboard_focus);
event->focus_change.send_event = FALSE;
event->focus_change.in = FALSE;
gdk_event_set_device (event, device->keyboard);
g_object_unref(device->keyboard_focus);
device->keyboard_focus = NULL;
GDK_NOTE (EVENTS,
g_message ("focus out, device %p surface %p",
device, device->keyboard_focus));
_gdk_wayland_display_deliver_event (device->display, event);
}
if (surface)
{
device->keyboard_focus = wl_surface_get_user_data(surface);
g_object_ref(device->keyboard_focus);
event = gdk_event_new (GDK_FOCUS_CHANGE);
event->focus_change.window = g_object_ref (device->keyboard_focus);
event->focus_change.send_event = FALSE;
event->focus_change.in = TRUE;
gdk_event_set_device (event, device->keyboard);
update_modifiers (device, keys);
GDK_NOTE (EVENTS,
g_message ("focus int, device %p surface %p",
device, device->keyboard_focus));
_gdk_wayland_display_deliver_event (device->display, event);
_gdk_wayland_window_add_focus (device->keyboard_focus);
}
}
static const struct wl_input_device_listener input_device_listener = {
input_handle_motion,
input_handle_button,
input_handle_key,
input_handle_pointer_focus,
input_handle_keyboard_focus,
};
struct _DataOffer {
struct wl_data_offer *offer;
gint ref_count;
GPtrArray *types;
};
static void
data_offer_offer (void *data,
struct wl_data_offer *wl_data_offer,
const char *type)
{
DataOffer *offer = (DataOffer *)data;
g_debug (G_STRLOC ": %s wl_data_offer = %p type = %s",
G_STRFUNC, wl_data_offer, type);
g_ptr_array_add (offer->types, g_strdup (type));
}
static void
data_offer_unref (DataOffer *offer)
{
offer->ref_count--;
if (offer->ref_count == 0)
{
g_ptr_array_free (offer->types, TRUE);
g_free (offer);
}
}
static const struct wl_data_offer_listener data_offer_listener = {
data_offer_offer,
};
static void
data_device_data_offer (void *data,
struct wl_data_device *data_device,
uint32_t id)
{
DataOffer *offer;
g_debug (G_STRLOC ": %s data_device = %p id = %lu",
G_STRFUNC, data_device, (long unsigned int)id);
/* This structure is reference counted to handle the case where you get a
* leave but are in the middle of transferring data
*/
offer = g_new0 (DataOffer, 1);
offer->ref_count = 1;
offer->types = g_ptr_array_new_with_free_func (g_free);
offer->offer = (struct wl_data_offer *)
wl_proxy_create_for_id ((struct wl_proxy *) data_device,
id,
&wl_data_offer_interface);
/* The DataOffer structure is then retrieved later since this sets the user
* data.
*/
wl_data_offer_add_listener (offer->offer,
&data_offer_listener,
offer);
}
static void
data_device_enter (void *data,
struct wl_data_device *data_device,
uint32_t time,
struct wl_surface *surface,
int32_t x,
int32_t y,
struct wl_data_offer *offer)
{
GdkWaylandDevice *device = (GdkWaylandDevice *)data;
g_debug (G_STRLOC ": %s data_device = %p time = %d, surface = %p, x = %d y = %d, offer = %p",
G_STRFUNC, data_device, time, surface, x, y, offer);
/* Retrieve the DataOffer associated with with the wl_data_offer - this
* association is made when the listener is attached.
*/
g_assert (device->drag_offer == NULL);
device->drag_offer = wl_data_offer_get_user_data (offer);
}
static void
data_device_leave (void *data,
struct wl_data_device *data_device)
{
GdkWaylandDevice *device = (GdkWaylandDevice *)data;
g_debug (G_STRLOC ": %s data_device = %p",
G_STRFUNC, data_device);
data_offer_unref (device->drag_offer);
device->drag_offer = NULL;
}
static void
data_device_motion (void *data,
struct wl_data_device *data_device,
uint32_t time,
int32_t x,
int32_t y)
{
g_debug (G_STRLOC ": %s data_device = %p, time = %d, x = %d, y = %d",
G_STRFUNC, data_device, time, x, y);
}
static void
data_device_drop (void *data,
struct wl_data_device *data_device)
{
g_debug (G_STRLOC ": %s data_device = %p",
G_STRFUNC, data_device);
}
static void
data_device_selection (void *data,
struct wl_data_device *wl_data_device,
struct wl_data_offer *offer)
{
GdkWaylandDevice *device = (GdkWaylandDevice *)data;
g_debug (G_STRLOC ": %s wl_data_device = %p wl_data_offer = %p",
G_STRFUNC, wl_data_device, offer);
if (!offer)
{
if (device->selection_offer)
{
data_offer_unref (device->selection_offer);
device->selection_offer = NULL;
}
return;
}
if (device->selection_offer)
{
data_offer_unref (device->selection_offer);
device->selection_offer = NULL;
}
/* Retrieve the DataOffer associated with with the wl_data_offer - this
* association is made when the listener is attached.
*/
g_assert (device->selection_offer == NULL);
device->selection_offer = wl_data_offer_get_user_data (offer);
}
static const struct wl_data_device_listener data_device_listener = {
data_device_data_offer,
data_device_enter,
data_device_leave,
data_device_motion,
data_device_drop,
data_device_selection
};
void
_gdk_wayland_device_manager_add_device (GdkDeviceManager *device_manager,
struct wl_input_device *wl_device)
{
GdkDisplay *display;
GdkDisplayWayland *display_wayland;
GdkDeviceManagerCore *device_manager_core =
GDK_DEVICE_MANAGER_CORE(device_manager);
GdkWaylandDevice *device;
device = g_new0 (GdkWaylandDevice, 1);
display = gdk_device_manager_get_display (device_manager);
display_wayland = GDK_DISPLAY_WAYLAND (display);
device->display = display;
device->pointer = g_object_new (GDK_TYPE_DEVICE_CORE,
"name", "Core Pointer",
"type", GDK_DEVICE_TYPE_MASTER,
"input-source", GDK_SOURCE_MOUSE,
"input-mode", GDK_MODE_SCREEN,
"has-cursor", TRUE,
"display", display,
"device-manager", device_manager,
NULL);
device->keyboard = g_object_new (GDK_TYPE_DEVICE_CORE,
"name", "Core Keyboard",
"type", GDK_DEVICE_TYPE_MASTER,
"input-source", GDK_SOURCE_KEYBOARD,
"input-mode", GDK_MODE_SCREEN,
"has-cursor", FALSE,
"display", display,
"device-manager", device_manager,
NULL);
GDK_DEVICE_CORE (device->pointer)->device = device;
GDK_DEVICE_CORE (device->keyboard)->device = device;
device->device = wl_device;
wl_input_device_add_listener(device->device,
&input_device_listener, device);
device->data_device =
wl_data_device_manager_get_data_device (display_wayland->data_device_manager,
device->device);
wl_data_device_add_listener (device->data_device,
&data_device_listener, device);
device_manager_core->devices =
g_list_prepend (device_manager_core->devices, device->keyboard);
device_manager_core->devices =
g_list_prepend (device_manager_core->devices, device->pointer);
_gdk_device_set_associated_device (device->pointer, device->keyboard);
_gdk_device_set_associated_device (device->keyboard, device->pointer);
}
static void
free_device (gpointer data)
{
g_object_unref (data);
}
static void
gdk_device_manager_core_finalize (GObject *object)
{
GdkDeviceManagerCore *device_manager_core;
device_manager_core = GDK_DEVICE_MANAGER_CORE (object);
g_list_free_full (device_manager_core->devices, free_device);
G_OBJECT_CLASS (gdk_device_manager_core_parent_class)->finalize (object);
}
static GList *
gdk_device_manager_core_list_devices (GdkDeviceManager *device_manager,
GdkDeviceType type)
{
GdkDeviceManagerCore *device_manager_core;
GList *devices = NULL;
if (type == GDK_DEVICE_TYPE_MASTER)
{
device_manager_core = (GdkDeviceManagerCore *) device_manager;
devices = g_list_copy(device_manager_core->devices);
}
return devices;
}
static GdkDevice *
gdk_device_manager_core_get_client_pointer (GdkDeviceManager *device_manager)
{
GdkDeviceManagerCore *device_manager_core;
device_manager_core = (GdkDeviceManagerCore *) device_manager;
return device_manager_core->devices->data;
}
static void
gdk_device_manager_core_class_init (GdkDeviceManagerCoreClass *klass)
{
GdkDeviceManagerClass *device_manager_class = GDK_DEVICE_MANAGER_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gdk_device_manager_core_finalize;
device_manager_class->list_devices = gdk_device_manager_core_list_devices;
device_manager_class->get_client_pointer = gdk_device_manager_core_get_client_pointer;
}
static void
gdk_device_manager_core_init (GdkDeviceManagerCore *device_manager)
{
}
GdkDeviceManager *
_gdk_wayland_device_manager_new (GdkDisplay *display)
{
return g_object_new (GDK_TYPE_DEVICE_MANAGER_CORE,
"display", display,
NULL);
}
gint
gdk_wayland_device_get_selection_type_atoms (GdkDevice *gdk_device,
GdkAtom **atoms_out)
{
gint i;
GdkAtom *atoms;
GdkWaylandDevice *device;
g_return_val_if_fail (GDK_IS_DEVICE_CORE (gdk_device), 0);
g_return_val_if_fail (atoms_out != NULL, 0);
device = GDK_DEVICE_CORE (gdk_device)->device;
if (!device->selection_offer || device->selection_offer->types->len == 0)
{
*atoms_out = NULL;
return 0;
}
atoms = g_new0 (GdkAtom, device->selection_offer->types->len);
/* Convert list of targets to atoms */
for (i = 0; i < device->selection_offer->types->len; i++)
{
atoms[i] = gdk_atom_intern (device->selection_offer->types->pdata[i],
FALSE);
GDK_NOTE (MISC,
g_message (G_STRLOC ": Adding atom for %s",
(char *)device->selection_offer->types->pdata[i]));
}
*atoms_out = atoms;
return device->selection_offer->types->len;
}
typedef struct
{
GdkWaylandDevice *device;
DataOffer *offer;
GIOChannel *channel;
GdkDeviceWaylandRequestContentCallback cb;
gpointer userdata;
} RequestContentClosure;
static gboolean
_request_content_io_func (GIOChannel *channel,
GIOCondition condition,
gpointer userdata)
{
RequestContentClosure *closure = (RequestContentClosure *)userdata;
gchar *data = NULL;
gsize len = 0;
GError *error = NULL;
/* FIXME: We probably want to do something better than this to avoid
* blocking on the transfer of large pieces of data: call the callback
* multiple times I should think.
*/
if (g_io_channel_read_to_end (channel,
&data,
&len,
&error) != G_IO_STATUS_NORMAL)
{
g_warning (G_STRLOC ": Error reading content from pipe: %s", error->message);
g_clear_error (&error);
}
/* Since we use _read_to_end we've got a guaranteed EOF and thus can go
* ahead and close the fd
*/
g_io_channel_shutdown (channel, TRUE, NULL);
closure->cb (closure->device->pointer, data, len, closure->userdata);
g_free (data);
data_offer_unref (closure->offer);
g_io_channel_unref (channel);
g_free (closure);
return FALSE;
}
gboolean
gdk_wayland_device_request_selection_content (GdkDevice *gdk_device,
const gchar *requested_mime_type,
GdkDeviceWaylandRequestContentCallback cb,
gpointer userdata)
{
int pipe_fd[2];
RequestContentClosure *closure;
GdkWaylandDevice *device;
GError *error = NULL;
g_return_val_if_fail (GDK_IS_DEVICE_CORE (gdk_device), FALSE);
g_return_val_if_fail (requested_mime_type != NULL, FALSE);
g_return_val_if_fail (cb != NULL, FALSE);
device = GDK_DEVICE_CORE (gdk_device)->device;
if (!device->selection_offer)
return FALSE;
/* TODO: Check mimetypes */
closure = g_new0 (RequestContentClosure, 1);
device->selection_offer->ref_count++;
pipe2 (pipe_fd, O_CLOEXEC);
wl_data_offer_receive (device->selection_offer->offer,
requested_mime_type,
pipe_fd[1]);
close (pipe_fd[1]);
closure->device = device;
closure->offer = device->selection_offer;
closure->channel = g_io_channel_unix_new (pipe_fd[0]);
closure->cb = cb;
closure->userdata = userdata;
if (!g_io_channel_set_encoding (closure->channel, NULL, &error))
{
g_warning (G_STRLOC ": Error setting encoding on channel: %s",
error->message);
g_clear_error (&error);
goto error;
}
g_io_add_watch (closure->channel,
G_IO_IN,
_request_content_io_func,
closure);
return TRUE;
error:
data_offer_unref (closure->offer);
g_io_channel_unref (closure->channel);
close (pipe_fd[1]);
g_free (closure);
return FALSE;
}
struct _GdkWaylandSelectionOffer {
GdkDeviceWaylandOfferContentCallback cb;
gpointer userdata;
struct wl_data_source *source;
GdkWaylandDevice *device;
};
static void
data_source_target (void *data,
struct wl_data_source *source,
const char *mime_type)
{
g_debug (G_STRLOC ": %s source = %p, mime_type = %s",
G_STRFUNC, source, mime_type);
}
static void
data_source_send (void *data,
struct wl_data_source *source,
const char *mime_type,
int32_t fd)
{
GdkWaylandSelectionOffer *offer = (GdkWaylandSelectionOffer *)data;;
gchar *buf;
gssize len, bytes_written = 0;
g_debug (G_STRLOC ": %s source = %p, mime_type = %s fd = %d",
G_STRFUNC, source, mime_type, fd);
buf = offer->cb (offer->device->pointer, mime_type, &len, offer->userdata);
while (len > 0)
{
bytes_written += write (fd, buf + bytes_written, len);
if (bytes_written == -1)
goto error;
len -= bytes_written;
}
close (fd);
g_free (buf);
return;
error:
g_warning (G_STRLOC ": Error writing data to client: %s",
g_strerror (errno));
close (fd);
g_free (buf);
}
static void
data_source_cancelled (void *data,
struct wl_data_source *source)
{
g_debug (G_STRLOC ": %s source = %p",
G_STRFUNC, source);
}
static const struct wl_data_source_listener data_source_listener = {
data_source_target,
data_source_send,
data_source_cancelled
};
static guint32
_wl_time_now (void)
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
gboolean
gdk_wayland_device_offer_selection_content (GdkDevice *gdk_device,
const gchar **mime_types,
gint nr_mime_types,
GdkDeviceWaylandOfferContentCallback cb,
gpointer userdata)
{
GdkDisplay *display;
GdkDisplayWayland *display_wayland;
GdkWaylandSelectionOffer *offer;
GdkWaylandDevice *device;
gint i;
g_return_val_if_fail (GDK_IS_DEVICE_CORE (gdk_device), 0);
device = GDK_DEVICE_CORE (gdk_device)->device;
display = device->display;
display_wayland = GDK_DISPLAY_WAYLAND (display);
offer = g_new0 (GdkWaylandSelectionOffer, 1);
offer->cb = cb;
offer->userdata = userdata;
offer->source =
wl_data_device_manager_create_data_source (display_wayland->data_device_manager);
offer->device = device;
for (i = 0; i < nr_mime_types; i++)
{
wl_data_source_offer (offer->source,
mime_types[i]);
}
wl_data_source_add_listener (offer->source,
&data_source_listener,
offer);
wl_data_device_set_selection (device->data_device,
offer->source,
_wl_time_now ());
device->selection_offer_out = offer;
return TRUE;
}
gboolean
gdk_wayland_device_clear_selection_content (GdkDevice *gdk_device)
{
GdkWaylandDevice *device;
g_return_val_if_fail (GDK_IS_DEVICE_CORE (gdk_device), 0);
device = GDK_DEVICE_CORE (gdk_device)->device;
if (!device->selection_offer_out)
return FALSE;
wl_data_device_set_selection (device->data_device,
NULL,
_wl_time_now ());
wl_data_source_destroy (device->selection_offer_out->source);
g_free (device->selection_offer_out);
device->selection_offer_out = NULL;
return TRUE;
}
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