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/*
* Copyright (C) 2021-2024 Red Hat Inc.
*
* 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/>.
*/
#include "config.h"
#include "mdk-touch.h"
#include <linux/input-event-codes.h>
#include "mdk-input-regions.h"
#include "mdk-monitor.h"
#include "mdk-stream.h"
struct _MdkTouch
{
MdkDevice parent;
GHashTable *slots;
GHashTable *regions;
};
G_DEFINE_FINAL_TYPE (MdkTouch, mdk_touch, MDK_TYPE_DEVICE)
static void
mdk_touch_constructed (GObject *object)
{
MdkTouch *touch = MDK_TOUCH (object);
MdkDevice *device = MDK_DEVICE (touch);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
touch->regions = mdk_process_regions (ei_device);
G_OBJECT_CLASS (mdk_touch_parent_class)->constructed (object);
}
static void
mdk_touch_finalize (GObject *object)
{
MdkTouch *touch = MDK_TOUCH (object);
g_clear_pointer (&touch->slots, g_hash_table_unref);
g_clear_pointer (&touch->regions, g_hash_table_unref);
G_OBJECT_CLASS (mdk_touch_parent_class)->finalize (object);
}
static void
mdk_touch_class_init (MdkTouchClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = mdk_touch_constructed;
object_class->finalize = mdk_touch_finalize;
}
static void
mdk_touch_init (MdkTouch *touch)
{
touch->slots = g_hash_table_new (NULL, NULL);
}
MdkTouch *
mdk_touch_new (MdkSeat *seat,
struct ei_device *ei_device)
{
return g_object_new (MDK_TYPE_TOUCH,
"seat", seat,
"ei-device", ei_device,
NULL);
}
void
mdk_touch_release_all (MdkTouch *touch)
{
MdkDevice *device = MDK_DEVICE (touch);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
GHashTableIter iter;
gpointer key, value;
g_debug ("Releaseing pressed touches");
g_hash_table_iter_init (&iter, touch->slots);
while (g_hash_table_iter_next (&iter, &key, &value))
{
struct ei_touch *ei_touch = value;
int slot = GPOINTER_TO_INT (key);
g_hash_table_iter_steal (&iter);
g_debug ("Emit touch up, slot: %d", slot);
ei_touch_up (ei_touch);
ei_device_frame (ei_device, g_get_monotonic_time ());
ei_touch_unref (ei_touch);
}
}
void
mdk_touch_notify_down (MdkTouch *touch,
MdkStream *stream,
int slot,
double x,
double y)
{
MdkDevice *device = MDK_DEVICE (touch);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
struct ei_touch *ei_touch;
if (!mdk_transform_stream_position (stream, touch->regions, &x, &y))
{
g_warning ("Dropping touch down, slot: %d, position: %f, %f",
slot, x, y);
return;
}
ei_touch = ei_device_touch_new (ei_device);
g_hash_table_insert (touch->slots, GINT_TO_POINTER (slot), ei_touch);
g_debug ("Emit touch down, slot: %d (%p), position: %f, %f",
slot, ei_touch, x, y);
ei_touch_down (ei_touch, x, y);
ei_device_frame (ei_device, g_get_monotonic_time ());
}
void
mdk_touch_notify_motion (MdkTouch *touch,
MdkStream *stream,
int slot,
double x,
double y)
{
MdkDevice *device = MDK_DEVICE (touch);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
struct ei_touch *ei_touch;
if (!mdk_transform_stream_position (stream, touch->regions, &x, &y))
{
g_warning ("Dropping touch motion, slot: %d, position: %f, %f",
slot, x, y);
return;
}
ei_touch = g_hash_table_lookup (touch->slots, GINT_TO_POINTER (slot));
if (!ei_touch)
return;
g_debug ("Emit touch motion, slot: %d, position: %f, %f",
slot, x, y);
ei_touch_motion (ei_touch, x, y);
ei_device_frame (ei_device, g_get_monotonic_time ());
}
void
mdk_touch_notify_up (MdkTouch *touch,
int slot)
{
MdkDevice *device = MDK_DEVICE (touch);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
struct ei_touch *ei_touch = NULL;
g_hash_table_steal_extended (touch->slots, GINT_TO_POINTER (slot),
NULL, (gpointer *) &ei_touch);
if (!ei_touch)
return;
g_debug ("Emit touch up, slot: %d (%p)", slot, ei_touch);
ei_touch_up (ei_touch);
ei_device_frame (ei_device, g_get_monotonic_time ());
ei_touch_unref (ei_touch);
}
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