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/*
* Copyright (C) 2021 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-pointer.h"
#include <linux/input-event-codes.h>
#include "mdk-monitor.h"
#include "mdk-stream.h"
/* discrete scroll unit in libei, see ei_device_scroll_discrete() */
#define SCROLL_UNIT 120
struct _MdkPointer
{
MdkDevice parent;
gboolean button_pressed[KEY_CNT];
};
G_DEFINE_FINAL_TYPE (MdkPointer, mdk_pointer, MDK_TYPE_DEVICE)
static void
mdk_pointer_class_init (MdkPointerClass *klass)
{
}
static void
mdk_pointer_init (MdkPointer *pointer)
{
}
MdkPointer *
mdk_pointer_new (MdkSeat *seat,
struct ei_device *ei_device)
{
return g_object_new (MDK_TYPE_POINTER,
"seat", seat,
"ei-device", ei_device,
NULL);
}
void
mdk_pointer_release_all (MdkPointer *pointer)
{
int i;
g_debug ("Releasing pressed pointer buttons");
for (i = 0; i < G_N_ELEMENTS (pointer->button_pressed); i++)
{
if (!pointer->button_pressed[i])
continue;
mdk_pointer_notify_button (pointer, i, 0);
}
}
void
mdk_pointer_notify_motion (MdkPointer *pointer,
double x,
double y)
{
MdkDevice *device = MDK_DEVICE (pointer);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
g_debug ("Emit absolute pointer motion %f, %f", x, y);
ei_device_pointer_motion_absolute (ei_device, x, y);
ei_device_frame (ei_device, g_get_monotonic_time ());
}
void
mdk_pointer_notify_button (MdkPointer *pointer,
int32_t button,
int state)
{
MdkDevice *device = MDK_DEVICE (pointer);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
if (button > G_N_ELEMENTS (pointer->button_pressed))
{
g_warning ("Unknown button key code 0x%x, ignoring", button);
return;
}
if (state)
{
g_return_if_fail (!pointer->button_pressed[button]);
pointer->button_pressed[button] = TRUE;
}
else
{
if (!pointer->button_pressed[button])
return;
pointer->button_pressed[button] = FALSE;
}
g_debug ("Emit pointer button 0x%x %s",
button,
state ? "pressed" : "released");
ei_device_button_button (ei_device, button, state);
ei_device_frame (ei_device, g_get_monotonic_time ());
}
void
mdk_pointer_notify_scroll (MdkPointer *pointer,
double dx,
double dy)
{
MdkDevice *device = MDK_DEVICE (pointer);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
g_debug ("Emit scroll delta %f, %f", dx, dy);
ei_device_scroll_delta (ei_device, dx, dy);
ei_device_frame (ei_device, g_get_monotonic_time ());
}
void
mdk_pointer_notify_scroll_end (MdkPointer *pointer)
{
MdkDevice *device = MDK_DEVICE (pointer);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
g_debug ("Emit scroll stop");
ei_device_scroll_stop (ei_device, true, true);
ei_device_frame (ei_device, g_get_monotonic_time ());
}
void
mdk_pointer_notify_scroll_discrete (MdkPointer *pointer,
GdkScrollDirection direction)
{
MdkDevice *device = MDK_DEVICE (pointer);
struct ei_device *ei_device = mdk_device_get_ei_device (device);
int32_t x;
int32_t y;
switch (direction)
{
case GDK_SCROLL_UP:
x = 0;
y = -SCROLL_UNIT;
break;
case GDK_SCROLL_DOWN:
x = 0;
y = SCROLL_UNIT;
break;
case GDK_SCROLL_LEFT:
x = -SCROLL_UNIT;
y = 0;
break;
case GDK_SCROLL_RIGHT:
x = SCROLL_UNIT;
y = 0;
break;
case GDK_SCROLL_SMOOTH:
default:
g_assert_not_reached ();
}
g_debug ("Emit discreete scroll %d, %d", x, y);
ei_device_scroll_discrete (ei_device, x, y);
ei_device_frame (ei_device, g_get_monotonic_time ());
}
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