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event/x11: Rework the way we translate X11 events

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This is a lump commit that is fairly difficult to break down without
either breaking bisecting or breaking the test cases.

The new design for handling X11 event translation works this way:

  - ClutterBackend::translate_event() has been added as the central
    point used by a ClutterBackend implementation to translate a
    native event into a ClutterEvent;

  - ClutterEventTranslator is a private interface that should be
    implemented by backend-specific objects, like stage
    implementations and ClutterDeviceManager sub-classes, and
    allows dealing with class-specific event translation;

  - ClutterStageX11 implements EventTranslator, and deals with the
    stage-relative X11 events coming from the X11 event source;

  - ClutterStageGLX overrides EventTranslator, in order to
    deal with the INTEL_GLX_swap_event extension, and it chains up
    to the X11 default implementation;

  - ClutterDeviceManagerX11 has been split into two separate classes,
    one that deals with core and (optionally) XI1 events, and the
    other that deals with XI2 events; the selection is done at run-time,
    since the core+XI1 and XI2 mechanisms are mutually exclusive.

All the other backends we officially support still use their own
custom event source and translation function, but the end goal is to
migrate them to the translate_event() virtual function, and have the
event source be a shared part of Clutter core.
This commit is contained in:
Emmanuele Bassi
2011-01-04 12:32:04 +00:00
parent ca092477c2
commit 1b1e77b469
37 changed files with 4369 additions and 1200 deletions
Download Patch File Download Diff File Expand all files Collapse all files

476
clutter/clutter-input-device.c
View File

@ -35,11 +35,13 @@
#include "config.h"
#endif
#include "clutter-input-device.h"
#include "clutter-actor-private.h"
#include "clutter-debug.h"
#include "clutter-device-manager-private.h"
#include "clutter-enum-types.h"
#include "clutter-input-device.h"
#include "clutter-marshal.h"
#include "clutter-private.h"
#include "clutter-stage-private.h"
@ -47,17 +49,67 @@ enum
{
PROP_0,
PROP_BACKEND,
PROP_ID,
PROP_DEVICE_TYPE,
PROP_NAME,
PROP_DEVICE_TYPE,
PROP_DEVICE_MANAGER,
PROP_DEVICE_MODE,
PROP_HAS_CURSOR,
PROP_N_AXES,
PROP_LAST
};
static GParamSpec *obj_props[PROP_LAST];
enum
{
SELECT_STAGE_EVENTS,
LAST_SIGNAL
};
static GParamSpec *obj_props[PROP_LAST] = { NULL, };
static guint device_signals[LAST_SIGNAL] = { 0, };
G_DEFINE_TYPE (ClutterInputDevice, clutter_input_device, G_TYPE_OBJECT);
static void
clutter_input_device_dispose (GObject *gobject)
{
ClutterInputDevice *device = CLUTTER_INPUT_DEVICE (gobject);
g_free (device->device_name);
if (device->device_mode == CLUTTER_INPUT_MODE_SLAVE)
_clutter_input_device_remove_slave (device->associated, device);
if (device->associated != NULL)
{
_clutter_input_device_set_associated_device (device->associated, NULL);
g_object_unref (device->associated);
device->associated = NULL;
}
if (device->axes != NULL)
{
g_array_free (device->axes, TRUE);
device->axes = NULL;
}
if (device->keys != NULL)
{
g_array_free (device->keys, TRUE);
device->keys = NULL;
}
G_OBJECT_CLASS (clutter_input_device_parent_class)->dispose (gobject);
}
static void
clutter_input_device_set_property (GObject *gobject,
guint prop_id,
@ -76,8 +128,24 @@ clutter_input_device_set_property (GObject *gobject,
self->device_type = g_value_get_enum (value);
break;
case PROP_DEVICE_MANAGER:
self->device_manager = g_value_get_object (value);
break;
case PROP_DEVICE_MODE:
self->device_mode = g_value_get_enum (value);
break;
case PROP_BACKEND:
self->backend = g_value_get_object (value);
break;
case PROP_NAME:
self->device_name = g_strdup (g_value_get_string (value));
self->device_name = g_value_dup_string (value);
break;
case PROP_HAS_CURSOR:
self->has_cursor = g_value_get_boolean (value);
break;
default:
@ -104,10 +172,33 @@ clutter_input_device_get_property (GObject *gobject,
g_value_set_enum (value, self->device_type);
break;
case PROP_DEVICE_MANAGER:
g_value_set_object (value, self->device_manager);
break;
case PROP_DEVICE_MODE:
g_value_set_enum (value, self->device_mode);
break;
case PROP_BACKEND:
g_value_set_object (value, self->backend);
break;
case PROP_NAME:
g_value_set_string (value, self->device_name);
break;
case PROP_HAS_CURSOR:
g_value_set_boolean (value, self->has_cursor);
break;
case PROP_N_AXES:
if (self->axes != NULL)
g_value_set_uint (value, self->axes->len);
else
g_value_set_uint (value, 0);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
@ -118,10 +209,6 @@ static void
clutter_input_device_class_init (ClutterInputDeviceClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GParamSpec *pspec;
gobject_class->set_property = clutter_input_device_set_property;
gobject_class->get_property = clutter_input_device_get_property;
/**
* ClutterInputDevice:id:
@ -130,15 +217,14 @@ clutter_input_device_class_init (ClutterInputDeviceClass *klass)
*
* Since: 1.2
*/
pspec = g_param_spec_int ("id",
P_("Id"),
P_("Unique identifier of the device"),
-1, G_MAXINT,
0,
CLUTTER_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
obj_props[PROP_ID] = pspec;
g_object_class_install_property (gobject_class, PROP_ID, pspec);
obj_props[PROP_ID] =
g_param_spec_int ("id",
P_("Id"),
P_("Unique identifier of the device"),
-1, G_MAXINT,
0,
CLUTTER_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
/**
* ClutterInputDevice:name:
@ -147,14 +233,13 @@ clutter_input_device_class_init (ClutterInputDeviceClass *klass)
*
* Since: 1.2
*/
pspec = g_param_spec_string ("name",
P_("Name"),
P_("The name of the device"),
NULL,
CLUTTER_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
obj_props[PROP_NAME] = pspec;
g_object_class_install_property (gobject_class, PROP_NAME, pspec);
obj_props[PROP_NAME] =
g_param_spec_string ("name",
P_("Name"),
P_("The name of the device"),
NULL,
CLUTTER_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
/**
* ClutterInputDevice:device-type:
@ -163,15 +248,67 @@ clutter_input_device_class_init (ClutterInputDeviceClass *klass)
*
* Since: 1.2
*/
pspec = g_param_spec_enum ("device-type",
P_("Device Type"),
P_("The type of the device"),
CLUTTER_TYPE_INPUT_DEVICE_TYPE,
CLUTTER_POINTER_DEVICE,
CLUTTER_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
obj_props[PROP_DEVICE_TYPE] = pspec;
g_object_class_install_property (gobject_class, PROP_DEVICE_TYPE, pspec);
obj_props[PROP_DEVICE_TYPE] =
g_param_spec_enum ("device-type",
P_("Device Type"),
P_("The type of the device"),
CLUTTER_TYPE_INPUT_DEVICE_TYPE,
CLUTTER_POINTER_DEVICE,
CLUTTER_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
obj_props[PROP_DEVICE_MANAGER] =
g_param_spec_object ("device-manager",
P_("Device Manager"),
P_("The device manager instance"),
CLUTTER_TYPE_DEVICE_MANAGER,
CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
obj_props[PROP_DEVICE_MODE] =
g_param_spec_enum ("device-mode",
P_("Device Mode"),
P_("The mode of the device"),
CLUTTER_TYPE_INPUT_MODE,
CLUTTER_INPUT_MODE_FLOATING,
CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
obj_props[PROP_HAS_CURSOR] =
g_param_spec_boolean ("has-cursor",
P_("Has Cursor"),
P_("Whether the device has a cursor"),
FALSE,
CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
obj_props[PROP_N_AXES] =
g_param_spec_uint ("n-axes",
P_("Number of Axes"),
P_("The number of axes on the device"),
0, G_MAXUINT,
0,
CLUTTER_PARAM_READABLE);
obj_props[PROP_BACKEND] =
g_param_spec_object ("backend",
P_("Backend"),
P_("The backend instance"),
CLUTTER_TYPE_BACKEND,
CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
gobject_class->dispose = clutter_input_device_dispose;
gobject_class->set_property = clutter_input_device_set_property;
gobject_class->get_property = clutter_input_device_get_property;
g_object_class_install_properties (gobject_class, PROP_LAST, obj_props);
device_signals[SELECT_STAGE_EVENTS] =
g_signal_new (I_("select-stage-events"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL,
_clutter_marshal_VOID__OBJECT_INT,
G_TYPE_NONE, 2,
CLUTTER_TYPE_STAGE,
G_TYPE_INT);
}
static void
@ -187,6 +324,9 @@ clutter_input_device_init (ClutterInputDevice *self)
self->current_y = self->previous_y = -1;
self->current_button_number = self->previous_button_number = -1;
self->current_state = self->previous_state = 0;
self->min_keycode = 0;
self->max_keycode = G_MAXUINT;
}
/*
@ -483,7 +623,6 @@ clutter_input_device_get_device_coords (ClutterInputDevice *device,
gint *y)
{
g_return_if_fail (CLUTTER_IS_INPUT_DEVICE (device));
g_return_if_fail (device->device_type == CLUTTER_POINTER_DEVICE);
if (x)
*x = device->current_x;
@ -514,7 +653,8 @@ _clutter_input_device_update (ClutterInputDevice *device)
ClutterActor *old_cursor_actor;
gint x, y;
g_return_val_if_fail (device->device_type == CLUTTER_POINTER_DEVICE, NULL);
if (device->device_type == CLUTTER_KEYBOARD_DEVICE)
return NULL;
stage = device->stage;
if (G_UNLIKELY (stage == NULL))
@ -700,3 +840,267 @@ clutter_input_device_update_from_event (ClutterInputDevice *device,
if (update_stage)
_clutter_input_device_set_stage (device, event_stage);
}
void
_clutter_input_device_reset_axes (ClutterInputDevice *device)
{
if (device->axes != NULL)
{
g_array_free (device->axes, TRUE);
g_object_notify_by_pspec (G_OBJECT (device), obj_props[PROP_N_AXES]);
}
}
guint
_clutter_input_device_add_axis (ClutterInputDevice *device,
ClutterInputAxis axis,
gdouble minimum,
gdouble maximum,
gdouble resolution)
{
ClutterAxisInfo info;
guint pos;
if (device->axes == NULL)
device->axes = g_array_new (FALSE, TRUE, sizeof (ClutterAxisInfo));
info.axis = axis;
info.min_value = minimum;
info.max_value = maximum;
info.resolution = resolution;
switch (axis)
{
case CLUTTER_INPUT_AXIS_X:
case CLUTTER_INPUT_AXIS_Y:
info.min_axis = 0;
info.max_axis = 0;
break;
case CLUTTER_INPUT_AXIS_XTILT:
case CLUTTER_INPUT_AXIS_YTILT:
info.min_axis = -1;
info.max_axis = 1;
break;
default:
info.min_axis = 0;
info.max_axis = 1;
}
device->axes = g_array_append_val (device->axes, info);
pos = device->axes->len - 1;
g_object_notify_by_pspec (G_OBJECT (device), obj_props[PROP_N_AXES]);
return pos;
}
gboolean
_clutter_input_device_translate_axis (ClutterInputDevice *device,
guint index_,
gint value,
gdouble *axis_value)
{
ClutterAxisInfo *info;
gdouble width;
gdouble real_value;
if (device->axes == NULL || index_ >= device->axes->len)
return FALSE;
info = &g_array_index (device->axes, ClutterAxisInfo, index_);
if (info->axis == CLUTTER_INPUT_AXIS_X ||
info->axis == CLUTTER_INPUT_AXIS_Y)
return FALSE;
width = info->max_value - info->min_value;
real_value = (info->max_axis * (value - info->min_value)
+ info->min_axis * (info->max_value - value))
/ width;
if (axis_value)
*axis_value = real_value;
return TRUE;
}
ClutterInputAxis
_clutter_input_device_get_axis (ClutterInputDevice *device,
guint index_)
{
ClutterAxisInfo *info;
if (device->axes == NULL)
return CLUTTER_INPUT_AXIS_IGNORE;
if (index_ >= device->axes->len)
return CLUTTER_INPUT_AXIS_IGNORE;
info = &g_array_index (device->axes, ClutterAxisInfo, index_);
return info->axis;
}
guint
clutter_input_device_get_n_axes (ClutterInputDevice *device)
{
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), 0);
if (device->axes != NULL)
return device->axes->len;
return 0;
}
void
_clutter_input_device_set_keys (ClutterInputDevice *device,
guint n_keys,
gint min_keycode,
gint max_keycode)
{
if (device->keys != NULL)
g_array_free (device->keys, TRUE);
device->n_keys = n_keys;
device->keys = g_array_sized_new (FALSE, TRUE,
sizeof (ClutterKeyInfo),
n_keys);
device->min_keycode = min_keycode;
device->max_keycode = max_keycode;
}
guint
clutter_input_device_get_n_keys (ClutterInputDevice *device)
{
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), 0);
if (device->keys != NULL)
return device->keys->len;
return 0;
}
void
clutter_input_device_set_key (ClutterInputDevice *device,
guint index_,
guint keyval,
ClutterModifierType modifiers)
{
ClutterKeyInfo *key_info;
g_return_if_fail (CLUTTER_IS_INPUT_DEVICE (device));
g_return_if_fail (index_ < device->n_keys);
g_return_if_fail (keyval >= device->min_keycode &&
keyval <= device->max_keycode);
key_info = &g_array_index (device->keys, ClutterKeyInfo, index_);
key_info->keyval = keyval;
key_info->modifiers = modifiers;
}
gboolean
clutter_input_device_get_key (ClutterInputDevice *device,
guint index_,
guint *keyval,
ClutterModifierType *modifiers)
{
ClutterKeyInfo *key_info;
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), FALSE);
if (device->keys == NULL)
return FALSE;
if (index_ > device->keys->len)
return FALSE;
key_info = &g_array_index (device->keys, ClutterKeyInfo, index_);
if (!key_info->keyval && !key_info->modifiers)
return FALSE;
if (keyval)
*keyval = key_info->keyval;
if (modifiers)
*modifiers = key_info->modifiers;
return TRUE;
}
void
_clutter_input_device_add_slave (ClutterInputDevice *master,
ClutterInputDevice *slave)
{
if (g_list_find (master->slaves, slave) == NULL)
master->slaves = g_list_prepend (master->slaves, slave);
}
void
_clutter_input_device_remove_slave (ClutterInputDevice *master,
ClutterInputDevice *slave)
{
if (g_list_find (master->slaves, slave) != NULL)
master->slaves = g_list_remove (master->slaves, slave);
}
GList *
clutter_input_device_get_slave_devices (ClutterInputDevice *device)
{
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), NULL);
return g_list_copy (device->slaves);
}
void
_clutter_input_device_set_associated_device (ClutterInputDevice *device,
ClutterInputDevice *associated)
{
if (device->associated == associated)
return;
if (device->associated != NULL)
g_object_unref (device->associated);
device->associated = associated;
if (device->associated != NULL)
g_object_ref (device->associated);
CLUTTER_NOTE (MISC, "Associating device '%s' to device '%s'",
clutter_input_device_get_device_name (device),
device->associated != NULL
? clutter_input_device_get_device_name (device->associated)
: "(none)");
if (device->device_mode != CLUTTER_INPUT_MODE_MASTER)
{
if (device->associated != NULL)
device->device_mode = CLUTTER_INPUT_MODE_SLAVE;
else
device->device_mode = CLUTTER_INPUT_MODE_FLOATING;
g_object_notify_by_pspec (G_OBJECT (device), obj_props[PROP_DEVICE_MODE]);
}
}
ClutterInputDevice *
clutter_input_device_get_associated_device (ClutterInputDevice *device)
{
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), NULL);
return device->associated;
}
void
_clutter_input_device_select_stage_events (ClutterInputDevice *device,
ClutterStage *stage,
gint event_mask)
{
g_signal_emit (device, device_signals[SELECT_STAGE_EVENTS], 0,
stage,
event_mask);
}