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gesturesingle: Add an "exclusive" boolean property

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All "exclusive" gestures listen for either pointer events, or
"pointer emulating" touch events, so only a single sequence at
a time can make these run.
This commit is contained in:
Carlos Garnacho
2014-05-12 19:50:26 +02:00
parent fd9925141b
commit 0b3f4d5555
3 changed files with 90 additions and 0 deletions
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2
docs/reference/gtk/gtk3-sections.txt
View File

@ -7963,6 +7963,8 @@ gtk_gesture_get_type
<FILE>gtkgesturesingle</FILE>
<TITLE>GtkGestureSingle</TITLE>
GtkGestureSingle
gtk_gesture_single_get_exclusive
gtk_gesture_single_set_exclusive
gtk_gesture_single_get_touch_only
gtk_gesture_single_set_touch_only
gtk_gesture_single_get_button

81
gtk/gtkgesturesingle.c
View File

@ -48,10 +48,12 @@ struct _GtkGestureSinglePrivate
guint button;
guint current_button;
guint touch_only : 1;
guint exclusive : 1;
};
enum {
PROP_TOUCH_ONLY = 1,
PROP_EXCLUSIVE,
PROP_BUTTON
};
@ -73,6 +75,9 @@ gtk_gesture_single_get_property (GObject *object,
case PROP_TOUCH_ONLY:
g_value_set_boolean (value, priv->touch_only);
break;
case PROP_EXCLUSIVE:
g_value_set_boolean (value, priv->exclusive);
break;
case PROP_BUTTON:
g_value_set_uint (value, priv->button);
break;
@ -93,6 +98,10 @@ gtk_gesture_single_set_property (GObject *object,
gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (object),
g_value_get_boolean (value));
break;
case PROP_EXCLUSIVE:
gtk_gesture_single_set_exclusive (GTK_GESTURE_SINGLE (object),
g_value_get_boolean (value));
break;
case PROP_BUTTON:
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (object),
g_value_get_uint (value));
@ -136,6 +145,9 @@ gtk_gesture_single_handle_event (GtkEventController *controller,
case GDK_TOUCH_BEGIN:
case GDK_TOUCH_END:
case GDK_TOUCH_UPDATE:
if (priv->exclusive && !event->touch.emulating_pointer)
return FALSE;
sequence = event->touch.sequence;
button = 1;
break;
@ -226,6 +238,21 @@ gtk_gesture_single_class_init (GtkGestureSingleClass *klass)
" only touch events"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkGestureSingle:exclusive:
*
* Whether the gesture is exclusive. Exclusive gestures only listen to pointer
* and pointer emulated events.
*
* Since: 3.14
*/
g_object_class_install_property (object_class,
PROP_EXCLUSIVE,
g_param_spec_boolean ("exclusive",
P_("Whether the gesture is exclusive"),
P_("Whether the gesture is exclusive"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkGestureSingle:button:
*
@ -325,6 +352,60 @@ gtk_gesture_single_set_touch_only (GtkGestureSingle *gesture,
g_object_notify (G_OBJECT (gesture), "touch-only");
}
/**
* gtk_gesture_single_get_exclusive:
* @gesture: a #GtkGestureSingle
*
* Gets whether a gesture is exclusive. For more information, see
* gtk_gesture_single_set_exclusive().
*
* Returns: Whether the gesture is exclusive
*
* Since: 3.14
**/
gboolean
gtk_gesture_single_get_exclusive (GtkGestureSingle *gesture)
{
GtkGestureSinglePrivate *priv;
g_return_val_if_fail (GTK_IS_GESTURE_SINGLE (gesture), FALSE);
priv = gtk_gesture_single_get_instance_private (gesture);
return priv->exclusive;
}
/**
* gtk_gesture_single_set_exclusive:
* @gesture: a #GtkGestureSingle
* @exclusive: #TRUE to make @gesture exclusive
*
* Sets whether @gesture is exclusive. An exclusive gesture will
* only handle pointer and "pointer emulated" touch events, so at
* any given time, there is only one sequence able to interact with
* those.
*
* Since: 3.14
**/
void
gtk_gesture_single_set_exclusive (GtkGestureSingle *gesture,
gboolean exclusive)
{
GtkGestureSinglePrivate *priv;
g_return_if_fail (GTK_IS_GESTURE_SINGLE (gesture));
exclusive = exclusive != FALSE;
priv = gtk_gesture_single_get_instance_private (gesture);
if (priv->exclusive == exclusive)
return;
priv->exclusive = exclusive;
_gtk_gesture_single_update_evmask (gesture);
g_object_notify (G_OBJECT (gesture), "exclusive");
}
/**
* gtk_gesture_single_get_button:
* @gesture: a #GtkGestureSingle

7
gtk/gtkgesturesingle.h
View File

@ -49,6 +49,13 @@ GDK_AVAILABLE_IN_3_14
void gtk_gesture_single_set_touch_only (GtkGestureSingle *gesture,
gboolean touch_only);
GDK_AVAILABLE_IN_3_14
gboolean gtk_gesture_single_get_exclusive (GtkGestureSingle *gesture);
GDK_AVAILABLE_IN_3_14
void gtk_gesture_single_set_exclusive (GtkGestureSingle *gesture,
gboolean exclusive);
GDK_AVAILABLE_IN_3_14
guint gtk_gesture_single_get_button (GtkGestureSingle *gesture);
GDK_AVAILABLE_IN_3_14