FreeRDP/client/X11/xf_input.c
2023-12-07 10:53:34 +01:00

953 lines
22 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* X11 Input
*
* Copyright 2013 Corey Clayton <can.of.tuna@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <freerdp/config.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#ifdef WITH_XCURSOR
#include <X11/Xcursor/Xcursor.h>
#endif
#ifdef WITH_XI
#include <X11/extensions/XInput2.h>
#endif
#include <math.h>
#include <float.h>
#include <limits.h>
#include "xf_event.h"
#include "xf_input.h"
#include <winpr/assert.h>
#include <winpr/wtypes.h>
#include <freerdp/log.h>
#define TAG CLIENT_TAG("x11")
#ifdef WITH_XI
#define PAN_THRESHOLD 50
#define ZOOM_THRESHOLD 10
#define MIN_FINGER_DIST 5
static int xf_input_event(xfContext* xfc, const XEvent* xevent, XIDeviceEvent* event, int evtype);
static const char* xf_input_get_class_string(int class)
{
if (class == XIKeyClass)
return "XIKeyClass";
else if (class == XIButtonClass)
return "XIButtonClass";
else if (class == XIValuatorClass)
return "XIValuatorClass";
else if (class == XIScrollClass)
return "XIScrollClass";
else if (class == XITouchClass)
return "XITouchClass";
return "XIUnknownClass";
}
static BOOL register_input_events(xfContext* xfc, Window window)
{
#define MAX_NR_MASKS 64
int ndevices = 0;
int nmasks = 0;
XIEventMask evmasks[MAX_NR_MASKS] = { 0 };
BYTE masks[MAX_NR_MASKS][XIMaskLen(XI_LASTEVENT)] = { 0 };
WINPR_ASSERT(xfc);
rdpSettings* settings = xfc->common.context.settings;
WINPR_ASSERT(settings);
XIDeviceInfo* info = XIQueryDevice(xfc->display, XIAllDevices, &ndevices);
for (int i = 0; i < MIN(ndevices, MAX_NR_MASKS); i++)
{
BOOL used = FALSE;
XIDeviceInfo* dev = &info[i];
evmasks[nmasks].mask = masks[nmasks];
evmasks[nmasks].mask_len = sizeof(masks[0]);
evmasks[nmasks].deviceid = dev->deviceid;
/* Ignore virtual core pointer */
if (strcmp(dev->name, "Virtual core pointer") == 0)
continue;
for (int j = 0; j < dev->num_classes; j++)
{
const XIAnyClassInfo* class = dev->classes[j];
switch (class->type)
{
case XITouchClass:
if (freerdp_settings_get_bool(settings, FreeRDP_MultiTouchInput))
{
const XITouchClassInfo* t = (const XITouchClassInfo*)class;
if (t->mode == XIDirectTouch)
{
WLog_DBG(
TAG,
"%s %s touch device (id: %d, mode: %d), supporting %d touches.",
dev->name, (t->mode == XIDirectTouch) ? "direct" : "dependent",
dev->deviceid, t->mode, t->num_touches);
XISetMask(masks[nmasks], XI_TouchBegin);
XISetMask(masks[nmasks], XI_TouchUpdate);
XISetMask(masks[nmasks], XI_TouchEnd);
}
}
break;
case XIButtonClass:
{
const XIButtonClassInfo* t = (const XIButtonClassInfo*)class;
WLog_DBG(TAG, "%s button device (id: %d, mode: %d)", dev->name, dev->deviceid,
t->num_buttons);
XISetMask(masks[nmasks], XI_ButtonPress);
XISetMask(masks[nmasks], XI_ButtonRelease);
XISetMask(masks[nmasks], XI_Motion);
used = TRUE;
break;
}
case XIValuatorClass:
{
const XIValuatorClassInfo* t = (const XIValuatorClassInfo*)class;
char* name = t->label ? XGetAtomName(xfc->display, t->label) : NULL;
WLog_DBG(TAG, "%s device (id: %d) valuator %d label %s range %f - %f",
dev->name, dev->deviceid, t->number, name ? name : "None", t->min,
t->max);
free(name);
if (t->number == 2)
{
double max_pressure = t->max;
char devName[200] = { 0 };
strncpy(devName, dev->name, ARRAYSIZE(devName) - 1);
CharLowerBuffA(devName, ARRAYSIZE(devName));
if (strstr(devName, "eraser") != NULL)
{
if (freerdp_client_handle_pen(&xfc->common,
FREERDP_PEN_REGISTER |
FREERDP_PEN_IS_INVERTED |
FREERDP_PEN_HAS_PRESSURE,
dev->deviceid, max_pressure))
WLog_DBG(TAG, "registered eraser");
}
else if (strstr(devName, "stylus") != NULL ||
strstr(devName, "pen") != NULL)
{
if (freerdp_client_handle_pen(
&xfc->common, FREERDP_PEN_REGISTER | FREERDP_PEN_HAS_PRESSURE,
dev->deviceid, max_pressure))
WLog_DBG(TAG, "registered pen");
}
}
break;
}
default:
break;
}
}
if (used)
nmasks++;
}
XIFreeDeviceInfo(info);
if (nmasks > 0)
{
Status xstatus = XISelectEvents(xfc->display, window, evmasks, nmasks);
if (xstatus != 0)
WLog_WARN(TAG, "XISelectEvents returned %d", xstatus);
}
return TRUE;
}
static BOOL register_raw_events(xfContext* xfc, Window window)
{
XIEventMask mask;
unsigned char mask_bytes[XIMaskLen(XI_LASTEVENT)] = { 0 };
rdpSettings* settings;
WINPR_ASSERT(xfc);
settings = xfc->common.context.settings;
WINPR_ASSERT(settings);
if (freerdp_client_use_relative_mouse_events(&xfc->common))
{
XISetMask(mask_bytes, XI_RawMotion);
XISetMask(mask_bytes, XI_RawButtonPress);
XISetMask(mask_bytes, XI_RawButtonRelease);
mask.deviceid = XIAllMasterDevices;
mask.mask_len = sizeof(mask_bytes);
mask.mask = mask_bytes;
XISelectEvents(xfc->display, window, &mask, 1);
}
return TRUE;
}
static BOOL register_device_events(xfContext* xfc, Window window)
{
XIEventMask mask;
unsigned char mask_bytes[XIMaskLen(XI_LASTEVENT)] = { 0 };
rdpSettings* settings;
WINPR_ASSERT(xfc);
settings = xfc->common.context.settings;
WINPR_ASSERT(settings);
XISetMask(mask_bytes, XI_DeviceChanged);
XISetMask(mask_bytes, XI_HierarchyChanged);
mask.deviceid = XIAllDevices;
mask.mask_len = sizeof(mask_bytes);
mask.mask = mask_bytes;
XISelectEvents(xfc->display, window, &mask, 1);
return TRUE;
}
int xf_input_init(xfContext* xfc, Window window)
{
int major = XI_2_Major;
int minor = XI_2_Minor;
int opcode = 0, event = 0, error = 0;
WINPR_ASSERT(xfc);
rdpSettings* settings = xfc->common.context.settings;
WINPR_ASSERT(settings);
xfc->firstDist = -1.0;
xfc->z_vector = 0;
xfc->px_vector = 0;
xfc->py_vector = 0;
xfc->active_contacts = 0;
if (!XQueryExtension(xfc->display, "XInputExtension", &opcode, &event, &error))
{
WLog_WARN(TAG, "XInput extension not available.");
return -1;
}
xfc->XInputOpcode = opcode;
XIQueryVersion(xfc->display, &major, &minor);
if ((major < XI_2_Major) || ((major == XI_2_Major) && (minor < 2)))
{
WLog_WARN(TAG, "Server does not support XI 2.2");
return -1;
}
else
{
int scr = DefaultScreen(xfc->display);
Window root = RootWindow(xfc->display, scr);
if (!register_raw_events(xfc, root))
return -1;
if (!register_input_events(xfc, window))
return -1;
if (!register_device_events(xfc, window))
return -1;
}
return 0;
}
static BOOL xf_input_is_duplicate(xfContext* xfc, const XGenericEventCookie* cookie)
{
const XIDeviceEvent* event;
WINPR_ASSERT(xfc);
WINPR_ASSERT(cookie);
event = cookie->data;
WINPR_ASSERT(event);
if ((xfc->lastEvent.time == event->time) && (xfc->lastEvType == cookie->evtype) &&
(xfc->lastEvent.detail == event->detail) &&
(fabs(xfc->lastEvent.event_x - event->event_x) < DBL_EPSILON) &&
(fabs(xfc->lastEvent.event_y - event->event_y) < DBL_EPSILON))
{
return TRUE;
}
return FALSE;
}
static void xf_input_save_last_event(xfContext* xfc, const XGenericEventCookie* cookie)
{
const XIDeviceEvent* event;
WINPR_ASSERT(xfc);
WINPR_ASSERT(cookie);
event = cookie->data;
WINPR_ASSERT(event);
xfc->lastEvType = cookie->evtype;
xfc->lastEvent.time = event->time;
xfc->lastEvent.detail = event->detail;
xfc->lastEvent.event_x = event->event_x;
xfc->lastEvent.event_y = event->event_y;
}
static void xf_input_detect_pan(xfContext* xfc)
{
double dx[2];
double dy[2];
double px;
double py;
double dist_x;
double dist_y;
rdpContext* ctx;
WINPR_ASSERT(xfc);
ctx = &xfc->common.context;
WINPR_ASSERT(ctx);
if (xfc->active_contacts != 2)
{
return;
}
dx[0] = xfc->contacts[0].pos_x - xfc->contacts[0].last_x;
dx[1] = xfc->contacts[1].pos_x - xfc->contacts[1].last_x;
dy[0] = xfc->contacts[0].pos_y - xfc->contacts[0].last_y;
dy[1] = xfc->contacts[1].pos_y - xfc->contacts[1].last_y;
px = fabs(dx[0]) < fabs(dx[1]) ? dx[0] : dx[1];
py = fabs(dy[0]) < fabs(dy[1]) ? dy[0] : dy[1];
xfc->px_vector += px;
xfc->py_vector += py;
dist_x = fabs(xfc->contacts[0].pos_x - xfc->contacts[1].pos_x);
dist_y = fabs(xfc->contacts[0].pos_y - xfc->contacts[1].pos_y);
if (dist_y > MIN_FINGER_DIST)
{
if (xfc->px_vector > PAN_THRESHOLD)
{
{
PanningChangeEventArgs e;
EventArgsInit(&e, "xfreerdp");
e.dx = 5;
e.dy = 0;
PubSub_OnPanningChange(ctx->pubSub, xfc, &e);
}
xfc->px_vector = 0;
xfc->py_vector = 0;
xfc->z_vector = 0;
}
else if (xfc->px_vector < -PAN_THRESHOLD)
{
{
PanningChangeEventArgs e;
EventArgsInit(&e, "xfreerdp");
e.dx = -5;
e.dy = 0;
PubSub_OnPanningChange(ctx->pubSub, xfc, &e);
}
xfc->px_vector = 0;
xfc->py_vector = 0;
xfc->z_vector = 0;
}
}
if (dist_x > MIN_FINGER_DIST)
{
if (xfc->py_vector > PAN_THRESHOLD)
{
{
PanningChangeEventArgs e;
EventArgsInit(&e, "xfreerdp");
e.dx = 0;
e.dy = 5;
PubSub_OnPanningChange(ctx->pubSub, xfc, &e);
}
xfc->py_vector = 0;
xfc->px_vector = 0;
xfc->z_vector = 0;
}
else if (xfc->py_vector < -PAN_THRESHOLD)
{
{
PanningChangeEventArgs e;
EventArgsInit(&e, "xfreerdp");
e.dx = 0;
e.dy = -5;
PubSub_OnPanningChange(ctx->pubSub, xfc, &e);
}
xfc->py_vector = 0;
xfc->px_vector = 0;
xfc->z_vector = 0;
}
}
}
static void xf_input_detect_pinch(xfContext* xfc)
{
double dist;
double delta;
ZoomingChangeEventArgs e;
rdpContext* ctx;
WINPR_ASSERT(xfc);
ctx = &xfc->common.context;
WINPR_ASSERT(ctx);
if (xfc->active_contacts != 2)
{
xfc->firstDist = -1.0;
return;
}
/* first calculate the distance */
dist = sqrt(pow(xfc->contacts[1].pos_x - xfc->contacts[0].last_x, 2.0) +
pow(xfc->contacts[1].pos_y - xfc->contacts[0].last_y, 2.0));
/* if this is the first 2pt touch */
if (xfc->firstDist <= 0)
{
xfc->firstDist = dist;
xfc->lastDist = xfc->firstDist;
xfc->z_vector = 0;
xfc->px_vector = 0;
xfc->py_vector = 0;
}
else
{
delta = xfc->lastDist - dist;
if (delta > 1.0)
delta = 1.0;
if (delta < -1.0)
delta = -1.0;
/* compare the current distance to the first one */
xfc->z_vector += delta;
xfc->lastDist = dist;
if (xfc->z_vector > ZOOM_THRESHOLD)
{
EventArgsInit(&e, "xfreerdp");
e.dx = e.dy = -10;
PubSub_OnZoomingChange(ctx->pubSub, xfc, &e);
xfc->z_vector = 0;
xfc->px_vector = 0;
xfc->py_vector = 0;
}
if (xfc->z_vector < -ZOOM_THRESHOLD)
{
EventArgsInit(&e, "xfreerdp");
e.dx = e.dy = 10;
PubSub_OnZoomingChange(ctx->pubSub, xfc, &e);
xfc->z_vector = 0;
xfc->px_vector = 0;
xfc->py_vector = 0;
}
}
}
static void xf_input_touch_begin(xfContext* xfc, const XIDeviceEvent* event)
{
int i;
WINPR_UNUSED(xfc);
for (i = 0; i < MAX_CONTACTS; i++)
{
if (xfc->contacts[i].id == 0)
{
xfc->contacts[i].id = event->detail;
xfc->contacts[i].count = 1;
xfc->contacts[i].pos_x = event->event_x;
xfc->contacts[i].pos_y = event->event_y;
xfc->active_contacts++;
break;
}
}
}
static void xf_input_touch_update(xfContext* xfc, const XIDeviceEvent* event)
{
int i;
WINPR_ASSERT(xfc);
WINPR_ASSERT(event);
for (i = 0; i < MAX_CONTACTS; i++)
{
if (xfc->contacts[i].id == event->detail)
{
xfc->contacts[i].count++;
xfc->contacts[i].last_x = xfc->contacts[i].pos_x;
xfc->contacts[i].last_y = xfc->contacts[i].pos_y;
xfc->contacts[i].pos_x = event->event_x;
xfc->contacts[i].pos_y = event->event_y;
xf_input_detect_pinch(xfc);
xf_input_detect_pan(xfc);
break;
}
}
}
static void xf_input_touch_end(xfContext* xfc, const XIDeviceEvent* event)
{
int i;
WINPR_UNUSED(xfc);
for (i = 0; i < MAX_CONTACTS; i++)
{
if (xfc->contacts[i].id == event->detail)
{
xfc->contacts[i].id = 0;
xfc->contacts[i].count = 0;
xfc->active_contacts--;
break;
}
}
}
static int xf_input_handle_event_local(xfContext* xfc, const XEvent* event)
{
union
{
const XGenericEventCookie* cc;
XGenericEventCookie* vc;
} cookie;
cookie.cc = &event->xcookie;
XGetEventData(xfc->display, cookie.vc);
if ((cookie.cc->type == GenericEvent) && (cookie.cc->extension == xfc->XInputOpcode))
{
switch (cookie.cc->evtype)
{
case XI_TouchBegin:
if (xf_input_is_duplicate(xfc, cookie.cc) == FALSE)
xf_input_touch_begin(xfc, cookie.cc->data);
xf_input_save_last_event(xfc, cookie.cc);
break;
case XI_TouchUpdate:
if (xf_input_is_duplicate(xfc, cookie.cc) == FALSE)
xf_input_touch_update(xfc, cookie.cc->data);
xf_input_save_last_event(xfc, cookie.cc);
break;
case XI_TouchEnd:
if (xf_input_is_duplicate(xfc, cookie.cc) == FALSE)
xf_input_touch_end(xfc, cookie.cc->data);
xf_input_save_last_event(xfc, cookie.cc);
break;
default:
xf_input_event(xfc, event, cookie.cc->data, cookie.cc->evtype);
break;
}
}
XFreeEventData(xfc->display, cookie.vc);
return 0;
}
#ifdef WITH_DEBUG_X11
static char* xf_input_touch_state_string(DWORD flags)
{
if (flags & RDPINPUT_CONTACT_FLAG_DOWN)
return "RDPINPUT_CONTACT_FLAG_DOWN";
else if (flags & RDPINPUT_CONTACT_FLAG_UPDATE)
return "RDPINPUT_CONTACT_FLAG_UPDATE";
else if (flags & RDPINPUT_CONTACT_FLAG_UP)
return "RDPINPUT_CONTACT_FLAG_UP";
else if (flags & RDPINPUT_CONTACT_FLAG_INRANGE)
return "RDPINPUT_CONTACT_FLAG_INRANGE";
else if (flags & RDPINPUT_CONTACT_FLAG_INCONTACT)
return "RDPINPUT_CONTACT_FLAG_INCONTACT";
else if (flags & RDPINPUT_CONTACT_FLAG_CANCELED)
return "RDPINPUT_CONTACT_FLAG_CANCELED";
else
return "RDPINPUT_CONTACT_FLAG_UNKNOWN";
}
#endif
static void xf_input_hide_cursor(xfContext* xfc)
{
#ifdef WITH_XCURSOR
if (!xfc->cursorHidden)
{
XcursorImage ci = { 0 };
XcursorPixel xp = 0;
static Cursor nullcursor = None;
xf_lock_x11(xfc);
ci.version = XCURSOR_IMAGE_VERSION;
ci.size = sizeof(ci);
ci.width = ci.height = 1;
ci.xhot = ci.yhot = 0;
ci.pixels = &xp;
nullcursor = XcursorImageLoadCursor(xfc->display, &ci);
if ((xfc->window) && (nullcursor != None))
XDefineCursor(xfc->display, xfc->window->handle, nullcursor);
xfc->cursorHidden = TRUE;
xf_unlock_x11(xfc);
}
#endif
}
static void xf_input_show_cursor(xfContext* xfc)
{
#ifdef WITH_XCURSOR
xf_lock_x11(xfc);
if (xfc->cursorHidden)
{
if (xfc->window)
{
if (!xfc->pointer)
XUndefineCursor(xfc->display, xfc->window->handle);
else
XDefineCursor(xfc->display, xfc->window->handle, xfc->pointer->cursor);
}
xfc->cursorHidden = FALSE;
}
xf_unlock_x11(xfc);
#endif
}
static int xf_input_touch_remote(xfContext* xfc, XIDeviceEvent* event, int evtype)
{
int x, y;
int touchId;
RdpeiClientContext* rdpei = xfc->common.rdpei;
if (!rdpei)
return 0;
xf_input_hide_cursor(xfc);
touchId = event->detail;
x = (int)event->event_x;
y = (int)event->event_y;
xf_event_adjust_coordinates(xfc, &x, &y);
switch (evtype)
{
case XI_TouchBegin:
freerdp_client_handle_touch(&xfc->common, FREERDP_TOUCH_DOWN, touchId, 0, x, y);
break;
case XI_TouchUpdate:
freerdp_client_handle_touch(&xfc->common, FREERDP_TOUCH_MOTION, touchId, 0, x, y);
break;
case XI_TouchEnd:
freerdp_client_handle_touch(&xfc->common, FREERDP_TOUCH_UP, touchId, 0, x, y);
break;
default:
break;
}
return 0;
}
static BOOL xf_input_pen_remote(xfContext* xfc, XIDeviceEvent* event, int evtype, int deviceid)
{
int x, y;
RdpeiClientContext* rdpei = xfc->common.rdpei;
if (!rdpei)
return FALSE;
xf_input_hide_cursor(xfc);
x = (int)event->event_x;
y = (int)event->event_y;
xf_event_adjust_coordinates(xfc, &x, &y);
double pressure = 0.0;
double* val = event->valuators.values;
for (int i = 0; i < MIN(event->valuators.mask_len * 8, 3); i++)
{
if (XIMaskIsSet(event->valuators.mask, i))
{
double value = *val++;
if (i == 2)
pressure = value;
}
}
UINT32 flags = FREERDP_PEN_HAS_PRESSURE;
if ((evtype == XI_ButtonPress) || (evtype == XI_ButtonRelease))
{
WLog_DBG(TAG, "pen button %d", event->detail);
switch (event->detail)
{
case 1:
break;
case 3:
flags |= FREERDP_PEN_BARREL_PRESSED;
break;
default:
return FALSE;
}
}
switch (evtype)
{
case XI_ButtonPress:
flags |= FREERDP_PEN_PRESS;
if (!freerdp_client_handle_pen(&xfc->common, flags, deviceid, x, y, pressure))
return FALSE;
break;
case XI_Motion:
flags |= FREERDP_PEN_MOTION;
if (!freerdp_client_handle_pen(&xfc->common, flags, deviceid, x, y, pressure))
return FALSE;
break;
case XI_ButtonRelease:
flags |= FREERDP_PEN_RELEASE;
if (!freerdp_client_handle_pen(&xfc->common, flags, deviceid, x, y, pressure))
return FALSE;
break;
default:
break;
}
return TRUE;
}
static int xf_input_pens_unhover(xfContext* xfc)
{
WINPR_ASSERT(xfc);
freerdp_client_pen_cancel_all(&xfc->common);
return 0;
}
int xf_input_event(xfContext* xfc, const XEvent* xevent, XIDeviceEvent* event, int evtype)
{
const rdpSettings* settings;
WINPR_ASSERT(xfc);
WINPR_ASSERT(xevent);
WINPR_ASSERT(event);
settings = xfc->common.context.settings;
WINPR_ASSERT(settings);
xfWindow* window = xfc->window;
if (window)
{
if (xf_floatbar_is_locked(window->floatbar))
return 0;
}
xf_input_show_cursor(xfc);
switch (evtype)
{
case XI_ButtonPress:
xfc->xi_event = TRUE;
xf_generic_ButtonEvent(xfc, (int)event->event_x, (int)event->event_y, event->detail,
event->event, xfc->remote_app, TRUE);
break;
case XI_ButtonRelease:
xfc->xi_event = TRUE;
xf_generic_ButtonEvent(xfc, (int)event->event_x, (int)event->event_y, event->detail,
event->event, xfc->remote_app, FALSE);
break;
case XI_Motion:
xfc->xi_event = TRUE;
xf_generic_MotionNotify(xfc, (int)event->event_x, (int)event->event_y, event->detail,
event->event, xfc->remote_app);
break;
case XI_RawButtonPress:
case XI_RawButtonRelease:
xfc->xi_rawevent =
xfc->common.mouse_grabbed && freerdp_client_use_relative_mouse_events(&xfc->common);
if (xfc->xi_rawevent)
{
const XIRawEvent* ev = (const XIRawEvent*)event;
xf_generic_RawButtonEvent(xfc, ev->detail, xfc->remote_app,
evtype == XI_RawButtonPress);
}
break;
case XI_RawMotion:
xfc->xi_rawevent =
xfc->common.mouse_grabbed && freerdp_client_use_relative_mouse_events(&xfc->common);
if (xfc->xi_rawevent)
{
const XIRawEvent* ev = (const XIRawEvent*)event;
double x = 0.0;
double y = 0.0;
if (XIMaskIsSet(ev->valuators.mask, 0))
x = ev->raw_values[0];
if (XIMaskIsSet(ev->valuators.mask, 1))
y = ev->raw_values[1];
xf_generic_RawMotionNotify(xfc, (int)x, (int)y, event->event, xfc->remote_app);
}
break;
case XI_DeviceChanged:
{
const XIDeviceChangedEvent* ev = (const XIDeviceChangedEvent*)event;
if (ev->reason != XIDeviceChange)
break;
/*
* TODO:
* 1. Register only changed devices.
* 2. Both `XIDeviceChangedEvent` and `XIHierarchyEvent` have no target
* `Window` which is used to register xinput events. So assume
* `xfc->window` created by `xf_CreateDesktopWindow` is the same
* `Window` we registered.
*/
if (xfc->window)
register_input_events(xfc, xfc->window->handle);
}
break;
case XI_HierarchyChanged:
if (xfc->window)
register_input_events(xfc, xfc->window->handle);
break;
default:
WLog_WARN(TAG, "Unhandled event %d: Event was registered but is not handled!", evtype);
break;
}
return 0;
}
static int xf_input_handle_event_remote(xfContext* xfc, const XEvent* event)
{
union
{
const XGenericEventCookie* cc;
XGenericEventCookie* vc;
} cookie;
cookie.cc = &event->xcookie;
XGetEventData(xfc->display, cookie.vc);
if ((cookie.cc->type == GenericEvent) && (cookie.cc->extension == xfc->XInputOpcode))
{
switch (cookie.cc->evtype)
{
case XI_TouchBegin:
xf_input_pens_unhover(xfc);
/* fallthrough */
WINPR_FALLTHROUGH
case XI_TouchUpdate:
/* fallthrough */
WINPR_FALLTHROUGH
case XI_TouchEnd:
xf_input_touch_remote(xfc, cookie.cc->data, cookie.cc->evtype);
break;
case XI_ButtonPress:
/* fallthrough */
WINPR_FALLTHROUGH
case XI_Motion:
/* fallthrough */
WINPR_FALLTHROUGH
case XI_ButtonRelease:
{
WLog_DBG(TAG, "checking for pen");
XIDeviceEvent* deviceEvent = (XIDeviceEvent*)cookie.cc->data;
int deviceid = deviceEvent->deviceid;
if (freerdp_client_is_pen(&xfc->common, deviceid))
{
if (!xf_input_pen_remote(xfc, cookie.cc->data, cookie.cc->evtype, deviceid))
{
// XXX: don't show cursor
xf_input_event(xfc, event, cookie.cc->data, cookie.cc->evtype);
}
break;
}
}
/* fallthrough */
WINPR_FALLTHROUGH
default:
xf_input_pens_unhover(xfc);
xf_input_event(xfc, event, cookie.cc->data, cookie.cc->evtype);
break;
}
}
XFreeEventData(xfc->display, cookie.vc);
return 0;
}
#else
int xf_input_init(xfContext* xfc, Window window)
{
return 0;
}
#endif
int xf_input_handle_event(xfContext* xfc, const XEvent* event)
{
#ifdef WITH_XI
const rdpSettings* settings;
WINPR_ASSERT(xfc);
settings = xfc->common.context.settings;
WINPR_ASSERT(settings);
if (freerdp_settings_get_bool(settings, FreeRDP_MultiTouchInput))
{
return xf_input_handle_event_remote(xfc, event);
}
else if (freerdp_settings_get_bool(settings, FreeRDP_MultiTouchGestures))
{
return xf_input_handle_event_local(xfc, event);
}
else
{
return xf_input_handle_event_local(xfc, event);
}
#else
return 0;
#endif
}