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backends/x11: Implement ClutterSeat::query_state() vmethod

Browse Source 
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1403
This commit is contained in:
Carlos Garnacho 2020-06-05 22:40:32 +02:00
parent e3fe8c3dd1
commit 4766e2f858
2 changed files with 164 additions and 2 deletions
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3
clutter/clutter/clutter-seat.h
View File

@ -204,8 +204,7 @@ CLUTTER_EXPORT
gboolean clutter_seat_query_state (ClutterSeat *seat,
ClutterInputDevice *device,
ClutterEventSequence *sequence,
double *x,
double *y,
graphene_point_t *coords,
ClutterModifierType *modifiers);
#endif /* CLUTTER_SEAT_H */

163
src/backends/x11/meta-seat-x11.c
View File

@ -20,6 +20,7 @@
#include <X11/extensions/XInput2.h>
#include "backends/x11/meta-backend-x11.h"
#include "backends/x11/meta-event-x11.h"
#include "backends/x11/meta-input-device-tool-x11.h"
#include "backends/x11/meta-input-device-x11.h"
@ -44,6 +45,15 @@ enum
PROP_TOUCH_MODE,
};
typedef struct _MetaTouchInfo MetaTouchInfo;
struct _MetaTouchInfo
{
ClutterEventSequence *sequence;
double x;
double y;
};
struct _MetaSeatX11
{
ClutterSeat parent_instance;
@ -52,6 +62,7 @@ struct _MetaSeatX11
GList *devices;
GHashTable *devices_by_id;
GHashTable *tools_by_serial;
GHashTable *touch_coords;
MetaKeymapX11 *keymap;
int pointer_id;
@ -1481,6 +1492,7 @@ meta_seat_x11_finalize (GObject *object)
g_hash_table_unref (seat_x11->devices_by_id);
g_hash_table_unref (seat_x11->tools_by_serial);
g_hash_table_unref (seat_x11->touch_coords);
g_list_free (seat_x11->devices);
G_OBJECT_CLASS (meta_seat_x11_parent_class)->finalize (object);
@ -1579,6 +1591,140 @@ meta_seat_x11_warp_pointer (ClutterSeat *seat,
x, y);
}
static uint32_t
translate_state (XIButtonState *button_state,
XIModifierState *modifier_state,
XIGroupState *group_state)
{
uint32_t state = 0;
int i;
if (modifier_state)
state |= modifier_state->effective;
if (button_state)
{
for (i = 1; i < XIMaskLen (button_state->mask_len); i++)
{
if (!XIMaskIsSet (button_state->mask, i))
continue;
switch (i)
{
case 1:
state |= CLUTTER_BUTTON1_MASK;
break;
case 2:
state |= CLUTTER_BUTTON2_MASK;
break;
case 3:
state |= CLUTTER_BUTTON3_MASK;
break;
case 8:
state |= CLUTTER_BUTTON4_MASK;
break;
case 9:
state |= CLUTTER_BUTTON5_MASK;
break;
default:
break;
}
}
}
if (group_state)
state |= (group_state->effective) << 13;
return state;
}
static gboolean
meta_seat_x11_query_state (ClutterSeat *seat,
ClutterInputDevice *device,
ClutterEventSequence *sequence,
graphene_point_t *coords,
ClutterModifierType *modifiers)
{
MetaBackendX11 *backend_x11 = META_BACKEND_X11 (meta_get_backend ());
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
Window root_ret, child_ret;
double root_x, root_y, win_x, win_y;
XIButtonState button_state;
XIModifierState modifier_state;
XIGroupState group_state;
clutter_x11_trap_x_errors ();
XIQueryPointer (clutter_x11_get_default_display (),
seat_x11->pointer_id,
meta_backend_x11_get_xwindow (backend_x11),
&root_ret, &child_ret,
&root_x, &root_y, &win_x, &win_y,
&button_state, &modifier_state, &group_state);
if (clutter_x11_untrap_x_errors ())
return FALSE;
if (sequence)
{
MetaTouchInfo *touch_info;
touch_info = g_hash_table_lookup (seat_x11->touch_coords, sequence);
if (!touch_info)
return FALSE;
if (coords)
{
coords->x = touch_info->x;
coords->y = touch_info->y;
}
}
else
{
if (coords)
{
coords->x = win_x;
coords->y = win_y;
}
}
if (modifiers)
*modifiers = translate_state (&button_state, &modifier_state, &group_state);
return TRUE;
}
static void
meta_seat_x11_update_touchpoint (MetaSeatX11 *seat,
ClutterEventSequence *sequence,
double x,
double y)
{
MetaTouchInfo *touch_info;
touch_info = g_hash_table_lookup (seat->touch_coords, sequence);
if (!touch_info)
{
touch_info = g_slice_new (MetaTouchInfo);
touch_info->sequence = sequence;
g_hash_table_insert (seat->touch_coords, sequence, touch_info);
}
touch_info->x = x;
touch_info->y = y;
}
static void
meta_seat_x11_remove_touchpoint (MetaSeatX11 *seat,
ClutterEventSequence *sequence)
{
g_hash_table_remove (seat->touch_coords, sequence);
}
static void
meta_touch_info_free (MetaTouchInfo *touch_info)
{
g_slice_free (MetaTouchInfo, touch_info);
}
static void
meta_seat_x11_class_init (MetaSeatX11Class *klass)
{
@ -1602,6 +1748,7 @@ meta_seat_x11_class_init (MetaSeatX11Class *klass)
seat_class->get_supported_virtual_device_types = meta_seat_x11_get_supported_virtual_device_types;
seat_class->warp_pointer = meta_seat_x11_warp_pointer;
seat_class->handle_device_event = meta_seat_x11_handle_device_event;
seat_class->query_state = meta_seat_x11_query_state;
props[PROP_OPCODE] =
g_param_spec_int ("opcode",
@ -1639,6 +1786,8 @@ meta_seat_x11_init (MetaSeatX11 *seat)
(GDestroyNotify) g_object_unref);
seat->tools_by_serial = g_hash_table_new_full (NULL, NULL, NULL,
(GDestroyNotify) g_object_unref);
seat->touch_coords = g_hash_table_new_full (NULL, NULL, NULL,
(GDestroyNotify) meta_touch_info_free);
}
MetaSeatX11 *
@ -2143,6 +2292,15 @@ meta_seat_x11_translate_event (MetaSeatX11 *seat,
event->touch.modifier_state |= CLUTTER_BUTTON1_MASK;
meta_stage_x11_set_user_time (stage_x11, event->touch.time);
meta_seat_x11_update_touchpoint (seat,
GUINT_TO_POINTER (xev->detail),
xev->root_x,
xev->root_y);
}
else if (xi_event->evtype == XI_TouchEnd)
{
meta_seat_x11_remove_touchpoint (seat,
GUINT_TO_POINTER (xev->detail));
}
event->touch.sequence = GUINT_TO_POINTER (xev->detail);
@ -2197,6 +2355,11 @@ meta_seat_x11_translate_event (MetaSeatX11 *seat,
if (xev->flags & XITouchEmulatingPointer)
_clutter_event_set_pointer_emulated (event, TRUE);
meta_seat_x11_update_touchpoint (seat,
event->touch.sequence,
xev->root_x,
xev->root_y);
g_debug ("touch update: win:0x%x device:%d '%s' (seq:%d, x:%.2f, y:%.2f, axes:%s)",
(unsigned int) stage_x11->xwin,
event->touch.device->id,