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+/************************************************************
+
+Copyright 1989, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Hewlett-Packard not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+********************************************************/
+
+/********************************************************************
+ *
+ * Routines to register and initialize extension input devices.
+ * This also contains ProcessOtherEvent, the routine called from DDX
+ * to route extension events.
+ *
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "inputstr.h"
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XIproto.h>
+#include <X11/extensions/XI2proto.h>
+#include <X11/extensions/geproto.h>
+#include "windowstr.h"
+#include "miscstruct.h"
+#include "region.h"
+#include "exevents.h"
+#include "extnsionst.h"
+#include "exglobals.h"
+#include "dixevents.h" /* DeliverFocusedEvent */
+#include "dixgrabs.h" /* CreateGrab() */
+#include "scrnintstr.h"
+#include "listdev.h" /* for CopySwapXXXClass */
+#include "xace.h"
+#include "xiquerydevice.h" /* For List*Info */
+#include "eventconvert.h"
+#include "eventstr.h"
+
+#include <X11/extensions/XKBproto.h>
+#include "xkbsrv.h"
+
+#define WID(w) ((w) ? ((w)->drawable.id) : 0)
+#define AllModifiersMask ( \
+ ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | \
+ Mod3Mask | Mod4Mask | Mod5Mask )
+#define AllButtonsMask ( \
+ Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask )
+
+Bool ShouldFreeInputMasks(WindowPtr /* pWin */ ,
+ Bool /* ignoreSelectedEvents */
+ );
+static Bool MakeInputMasks(WindowPtr /* pWin */
+ );
+
+/*
+ * Only let the given client know of core events which will affect its
+ * interpretation of input events, if the client's ClientPointer (or the
+ * paired keyboard) is the current device.
+ */
+int
+XIShouldNotify(ClientPtr client, DeviceIntPtr dev)
+{
+ DeviceIntPtr current_ptr = PickPointer(client);
+ DeviceIntPtr current_kbd = GetPairedDevice(current_ptr);
+
+ if (dev == current_kbd || dev == current_ptr)
+ return 1;
+
+ return 0;
+}
+
+Bool
+IsPointerEvent(InternalEvent* event)
+{
+ switch(event->any.type)
+ {
+ case ET_ButtonPress:
+ case ET_ButtonRelease:
+ case ET_Motion:
+ /* XXX: enter/leave ?? */
+ return TRUE;
+ default:
+ break;
+ }
+ return FALSE;
+}
+
+/**
+ * @return the device matching the deviceid of the device set in the event, or
+ * NULL if the event is not an XInput event.
+ */
+DeviceIntPtr
+XIGetDevice(xEvent* xE)
+{
+ DeviceIntPtr pDev = NULL;
+
+ if (xE->u.u.type == DeviceButtonPress ||
+ xE->u.u.type == DeviceButtonRelease ||
+ xE->u.u.type == DeviceMotionNotify ||
+ xE->u.u.type == ProximityIn ||
+ xE->u.u.type == ProximityOut ||
+ xE->u.u.type == DevicePropertyNotify)
+ {
+ int rc;
+ int id;
+
+ id = ((deviceKeyButtonPointer*)xE)->deviceid & ~MORE_EVENTS;
+
+ rc = dixLookupDevice(&pDev, id, serverClient, DixUnknownAccess);
+ if (rc != Success)
+ ErrorF("[dix] XIGetDevice failed on XACE restrictions (%d)\n", rc);
+ }
+ return pDev;
+}
+
+
+/**
+ * Copy the device->key into master->key and send a mapping notify to the
+ * clients if appropriate.
+ * master->key needs to be allocated by the caller.
+ *
+ * Device is the slave device. If it is attached to a master device, we may
+ * need to send a mapping notify to the client because it causes the MD
+ * to change state.
+ *
+ * Mapping notify needs to be sent in the following cases:
+ * - different slave device on same master
+ * - different master
+ *
+ * XXX: They way how the code is we also send a map notify if the slave device
+ * stays the same, but the master changes. This isn't really necessary though.
+ *
+ * XXX: this gives you funny behaviour with the ClientPointer. When a
+ * MappingNotify is sent to the client, the client usually responds with a
+ * GetKeyboardMapping. This will retrieve the ClientPointer's keyboard
+ * mapping, regardless of which keyboard sent the last mapping notify request.
+ * So depending on the CP setting, your keyboard may change layout in each
+ * app...
+ *
+ * This code is basically the old SwitchCoreKeyboard.
+ */
+
+void
+CopyKeyClass(DeviceIntPtr device, DeviceIntPtr master)
+{
+ KeyClassPtr mk = master->key;
+
+ if (device == master)
+ return;
+
+ mk->sourceid = device->id;
+
+
+ if (!XkbCopyDeviceKeymap(master, device))
+ FatalError("Couldn't pivot keymap from device to core!\n");
+}
+
+/**
+ * Copies the feedback classes from device "from" into device "to". Classes
+ * are duplicated (not just flipping the pointers). All feedback classes are
+ * linked lists, the full list is duplicated.
+ */
+static void
+DeepCopyFeedbackClasses(DeviceIntPtr from, DeviceIntPtr to)
+{
+ ClassesPtr classes;
+
+
+ if (from->intfeed)
+ {
+ IntegerFeedbackPtr *i, it;
+
+ if (!to->intfeed)
+ {
+ classes = to->unused_classes;
+ to->intfeed = classes->intfeed;
+ classes->intfeed = NULL;
+ }
+
+ i = &to->intfeed;
+ for (it = from->intfeed; it; it = it->next)
+ {
+ if (!(*i))
+ {
+ *i = calloc(1, sizeof(IntegerFeedbackClassRec));
+ if (!(*i))
+ {
+ ErrorF("[Xi] Cannot alloc memory for class copy.");
+ return;
+ }
+ }
+ (*i)->CtrlProc = it->CtrlProc;
+ (*i)->ctrl = it->ctrl;
+
+ i = &(*i)->next;
+ }
+ } else if (to->intfeed && !from->intfeed)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->intfeed = to->intfeed;
+ to->intfeed = NULL;
+ }
+
+ if (from->stringfeed)
+ {
+ StringFeedbackPtr *s, it;
+
+ if (!to->stringfeed)
+ {
+ classes = to->unused_classes;
+ to->stringfeed = classes->stringfeed;
+ classes->stringfeed = NULL;
+ }
+
+ s = &to->stringfeed;
+ for (it = from->stringfeed; it; it = it->next)
+ {
+ if (!(*s))
+ {
+ *s = calloc(1, sizeof(StringFeedbackClassRec));
+ if (!(*s))
+ {
+ ErrorF("[Xi] Cannot alloc memory for class copy.");
+ return;
+ }
+ }
+ (*s)->CtrlProc = it->CtrlProc;
+ (*s)->ctrl = it->ctrl;
+
+ s = &(*s)->next;
+ }
+ } else if (to->stringfeed && !from->stringfeed)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->stringfeed = to->stringfeed;
+ to->stringfeed = NULL;
+ }
+
+ if (from->bell)
+ {
+ BellFeedbackPtr *b, it;
+
+ if (!to->bell)
+ {
+ classes = to->unused_classes;
+ to->bell = classes->bell;
+ classes->bell = NULL;
+ }
+
+ b = &to->bell;
+ for (it = from->bell; it; it = it->next)
+ {
+ if (!(*b))
+ {
+ *b = calloc(1, sizeof(BellFeedbackClassRec));
+ if (!(*b))
+ {
+ ErrorF("[Xi] Cannot alloc memory for class copy.");
+ return;
+ }
+ }
+ (*b)->BellProc = it->BellProc;
+ (*b)->CtrlProc = it->CtrlProc;
+ (*b)->ctrl = it->ctrl;
+
+ b = &(*b)->next;
+ }
+ } else if (to->bell && !from->bell)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->bell = to->bell;
+ to->bell = NULL;
+ }
+
+ if (from->leds)
+ {
+ LedFeedbackPtr *l, it;
+
+ if (!to->leds)
+ {
+ classes = to->unused_classes;
+ to->leds = classes->leds;
+ classes->leds = NULL;
+ }
+
+ l = &to->leds;
+ for (it = from->leds; it; it = it->next)
+ {
+ if (!(*l))
+ {
+ *l = calloc(1, sizeof(LedFeedbackClassRec));
+ if (!(*l))
+ {
+ ErrorF("[Xi] Cannot alloc memory for class copy.");
+ return;
+ }
+ }
+ (*l)->CtrlProc = it->CtrlProc;
+ (*l)->ctrl = it->ctrl;
+ if ((*l)->xkb_sli)
+ XkbFreeSrvLedInfo((*l)->xkb_sli);
+ (*l)->xkb_sli = XkbCopySrvLedInfo(from, it->xkb_sli, NULL, *l);
+
+ l = &(*l)->next;
+ }
+ } else if (to->leds && !from->leds)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->leds = to->leds;
+ to->leds = NULL;
+ }
+}
+
+static void
+DeepCopyKeyboardClasses(DeviceIntPtr from, DeviceIntPtr to)
+{
+ ClassesPtr classes;
+
+ /* XkbInitDevice (->XkbInitIndicatorMap->XkbFindSrvLedInfo) relies on the
+ * kbdfeed to be set up properly, so let's do the feedback classes first.
+ */
+ if (from->kbdfeed)
+ {
+ KbdFeedbackPtr *k, it;
+
+ if (!to->kbdfeed)
+ {
+ classes = to->unused_classes;
+
+ to->kbdfeed = classes->kbdfeed;
+ if (!to->kbdfeed)
+ InitKeyboardDeviceStruct(to, NULL, NULL, NULL);
+ classes->kbdfeed = NULL;
+ }
+
+ k = &to->kbdfeed;
+ for(it = from->kbdfeed; it; it = it->next)
+ {
+ if (!(*k))
+ {
+ *k = calloc(1, sizeof(KbdFeedbackClassRec));
+ if (!*k)
+ {
+ ErrorF("[Xi] Cannot alloc memory for class copy.");
+ return;
+ }
+ }
+ (*k)->BellProc = it->BellProc;
+ (*k)->CtrlProc = it->CtrlProc;
+ (*k)->ctrl = it->ctrl;
+ if ((*k)->xkb_sli)
+ XkbFreeSrvLedInfo((*k)->xkb_sli);
+ (*k)->xkb_sli = XkbCopySrvLedInfo(from, it->xkb_sli, *k, NULL);
+
+ k = &(*k)->next;
+ }
+ } else if (to->kbdfeed && !from->kbdfeed)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->kbdfeed = to->kbdfeed;
+ to->kbdfeed = NULL;
+ }
+
+ if (from->key)
+ {
+ if (!to->key)
+ {
+ classes = to->unused_classes;
+ to->key = classes->key;
+ if (!to->key)
+ InitKeyboardDeviceStruct(to, NULL, NULL, NULL);
+ else
+ classes->key = NULL;
+ }
+
+ CopyKeyClass(from, to);
+ } else if (to->key && !from->key)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->key = to->key;
+ to->key = NULL;
+ }
+
+ /* If a SrvLedInfoPtr's flags are XkbSLI_IsDefault, the names and maps
+ * pointer point into the xkbInfo->desc struct. XkbCopySrvLedInfo
+ * didn't update the pointers so we need to do it manually here.
+ */
+ if (to->kbdfeed)
+ {
+ KbdFeedbackPtr k;
+
+ for (k = to->kbdfeed; k; k = k->next)
+ {
+ if (!k->xkb_sli)
+ continue;
+ if (k->xkb_sli->flags & XkbSLI_IsDefault)
+ {
+ k->xkb_sli->names = to->key->xkbInfo->desc->names->indicators;
+ k->xkb_sli->maps = to->key->xkbInfo->desc->indicators->maps;
+ }
+ }
+ }
+
+ /* We can't just copy over the focus class. When an app sets the focus,
+ * it'll do so on the master device. Copying the SDs focus means losing
+ * the focus.
+ * So we only copy the focus class if the device didn't have one,
+ * otherwise we leave it as it is.
+ */
+ if (from->focus)
+ {
+ if (!to->focus)
+ {
+ WindowPtr *oldTrace;
+
+ classes = to->unused_classes;
+ to->focus = classes->focus;
+ if (!to->focus)
+ {
+ to->focus = calloc(1, sizeof(FocusClassRec));
+ if (!to->focus)
+ FatalError("[Xi] no memory for class shift.\n");
+ } else
+ classes->focus = NULL;
+
+ oldTrace = to->focus->trace;
+ memcpy(to->focus, from->focus, sizeof(FocusClassRec));
+ to->focus->trace = realloc(oldTrace,
+ to->focus->traceSize * sizeof(WindowPtr));
+ if (!to->focus->trace && to->focus->traceSize)
+ FatalError("[Xi] no memory for trace.\n");
+ memcpy(to->focus->trace, from->focus->trace,
+ from->focus->traceSize * sizeof(WindowPtr));
+ to->focus->sourceid = from->id;
+ }
+ } else if (to->focus)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->focus = to->focus;
+ to->focus = NULL;
+ }
+
+}
+
+static void
+DeepCopyPointerClasses(DeviceIntPtr from, DeviceIntPtr to)
+{
+ ClassesPtr classes;
+
+ /* Feedback classes must be copied first */
+ if (from->ptrfeed)
+ {
+ PtrFeedbackPtr *p, it;
+ if (!to->ptrfeed)
+ {
+ classes = to->unused_classes;
+ to->ptrfeed = classes->ptrfeed;
+ classes->ptrfeed = NULL;
+ }
+
+ p = &to->ptrfeed;
+ for (it = from->ptrfeed; it; it = it->next)
+ {
+ if (!(*p))
+ {
+ *p = calloc(1, sizeof(PtrFeedbackClassRec));
+ if (!*p)
+ {
+ ErrorF("[Xi] Cannot alloc memory for class copy.");
+ return;
+ }
+ }
+ (*p)->CtrlProc = it->CtrlProc;
+ (*p)->ctrl = it->ctrl;
+
+ p = &(*p)->next;
+ }
+ } else if (to->ptrfeed && !from->ptrfeed)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->ptrfeed = to->ptrfeed;
+ to->ptrfeed = NULL;
+ }
+
+ if (from->valuator)
+ {
+ ValuatorClassPtr v;
+
+ if (!to->valuator)
+ {
+ classes = to->unused_classes;
+ to->valuator = classes->valuator;
+ if (to->valuator)
+ classes->valuator = NULL;
+ }
+
+ v = AllocValuatorClass(to->valuator, from->valuator->numAxes);
+
+ if (!v)
+ FatalError("[Xi] no memory for class shift.\n");
+
+ to->valuator = v;
+ memcpy(v->axes, from->valuator->axes, v->numAxes * sizeof(AxisInfo));
+
+ v->sourceid = from->id;
+ } else if (to->valuator && !from->valuator)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->valuator = to->valuator;
+ to->valuator = NULL;
+ }
+
+ if (from->button)
+ {
+ if (!to->button)
+ {
+ classes = to->unused_classes;
+ to->button = classes->button;
+ if (!to->button)
+ {
+ to->button = calloc(1, sizeof(ButtonClassRec));
+ if (!to->button)
+ FatalError("[Xi] no memory for class shift.\n");
+ } else
+ classes->button = NULL;
+ }
+
+ if (from->button->xkb_acts)
+ {
+ if (!to->button->xkb_acts)
+ {
+ to->button->xkb_acts = calloc(1, sizeof(XkbAction));
+ if (!to->button->xkb_acts)
+ FatalError("[Xi] not enough memory for xkb_acts.\n");
+ }
+ memcpy(to->button->xkb_acts, from->button->xkb_acts,
+ sizeof(XkbAction));
+ } else
+ free(to->button->xkb_acts);
+
+ memcpy(to->button->labels, from->button->labels,
+ from->button->numButtons * sizeof(Atom));
+ to->button->sourceid = from->id;
+ } else if (to->button && !from->button)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->button = to->button;
+ to->button = NULL;
+ }
+
+ if (from->proximity)
+ {
+ if (!to->proximity)
+ {
+ classes = to->unused_classes;
+ to->proximity = classes->proximity;
+ if (!to->proximity)
+ {
+ to->proximity = calloc(1, sizeof(ProximityClassRec));
+ if (!to->proximity)
+ FatalError("[Xi] no memory for class shift.\n");
+ } else
+ classes->proximity = NULL;
+ }
+ memcpy(to->proximity, from->proximity, sizeof(ProximityClassRec));
+ to->proximity->sourceid = from->id;
+ } else if (to->proximity)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->proximity = to->proximity;
+ to->proximity = NULL;
+ }
+
+ if (from->absolute)
+ {
+ if (!to->absolute)
+ {
+ classes = to->unused_classes;
+ to->absolute = classes->absolute;
+ if (!to->absolute)
+ {
+ to->absolute = calloc(1, sizeof(AbsoluteClassRec));
+ if (!to->absolute)
+ FatalError("[Xi] no memory for class shift.\n");
+ } else
+ classes->absolute = NULL;
+ }
+ memcpy(to->absolute, from->absolute, sizeof(AbsoluteClassRec));
+ to->absolute->sourceid = from->id;
+ } else if (to->absolute)
+ {
+ ClassesPtr classes;
+ classes = to->unused_classes;
+ classes->absolute = to->absolute;
+ to->absolute = NULL;
+ }
+}
+
+/**
+ * Copies the CONTENT of the classes of device from into the classes in device
+ * to. From and to are identical after finishing.
+ *
+ * If to does not have classes from currenly has, the classes are stored in
+ * to's devPrivates system. Later, we recover it again from there if needed.
+ * Saves a few memory allocations.
+ */
+void
+DeepCopyDeviceClasses(DeviceIntPtr from, DeviceIntPtr to, DeviceChangedEvent *dce)
+{
+ /* generic feedback classes, not tied to pointer and/or keyboard */
+ DeepCopyFeedbackClasses(from, to);
+
+ if ((dce->flags & DEVCHANGE_KEYBOARD_EVENT))
+ DeepCopyKeyboardClasses(from, to);
+ if ((dce->flags & DEVCHANGE_POINTER_EVENT))
+ DeepCopyPointerClasses(from, to);
+}
+
+
+/**
+ * Send an XI2 DeviceChangedEvent to all interested clients.
+ */
+void
+XISendDeviceChangedEvent(DeviceIntPtr device, DeviceIntPtr master, DeviceChangedEvent *dce)
+{
+ xXIDeviceChangedEvent *dcce;
+ int rc;
+
+ rc = EventToXI2((InternalEvent*)dce, (xEvent**)&dcce);
+ if (rc != Success)
+ {
+ ErrorF("[Xi] event conversion from DCE failed with code %d\n", rc);
+ return;
+ }
+
+ /* we don't actually swap if there's a NullClient, swapping is done
+ * later when event is delivered. */
+ SendEventToAllWindows(master, XI_DeviceChangedMask, (xEvent*)dcce, 1);
+ free(dcce);
+}
+
+static void
+ChangeMasterDeviceClasses(DeviceIntPtr device, DeviceChangedEvent *dce)
+{
+ DeviceIntPtr slave;
+ int rc;
+
+ /* For now, we don't have devices that change physically. */
+ if (!IsMaster(device))
+ return;
+
+ rc = dixLookupDevice(&slave, dce->sourceid, serverClient, DixReadAccess);
+
+ if (rc != Success)
+ return; /* Device has disappeared */
+
+ if (!slave->u.master)
+ return; /* set floating since the event */
+
+ if (slave->u.master->id != dce->masterid)
+ return; /* not our slave anymore, don't care */
+
+ /* FIXME: we probably need to send a DCE for the new slave now */
+
+ device->public.devicePrivate = slave->public.devicePrivate;
+
+ /* FIXME: the classes may have changed since we generated the event. */
+ DeepCopyDeviceClasses(slave, device, dce);
+ XISendDeviceChangedEvent(slave, device, dce);
+}
+
+/**
+ * Update the device state according to the data in the event.
+ *
+ * return values are
+ * DEFAULT ... process as normal
+ * DONT_PROCESS ... return immediately from caller
+ */
+#define DEFAULT 0
+#define DONT_PROCESS 1
+int
+UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event)
+{
+ int i;
+ int key = 0,
+ bit = 0,
+ last_valuator;
+
+ KeyClassPtr k = NULL;
+ ButtonClassPtr b = NULL;
+ ValuatorClassPtr v = NULL;
+
+ /* This event is always the first we get, before the actual events with
+ * the data. However, the way how the DDX is set up, "device" will
+ * actually be the slave device that caused the event.
+ */
+ switch(event->type)
+ {
+ case ET_DeviceChanged:
+ ChangeMasterDeviceClasses(device, (DeviceChangedEvent*)event);
+ return DONT_PROCESS; /* event has been sent already */
+ case ET_Motion:
+ case ET_ButtonPress:
+ case ET_ButtonRelease:
+ case ET_KeyPress:
+ case ET_KeyRelease:
+ case ET_ProximityIn:
+ case ET_ProximityOut:
+ break;
+ default:
+ /* other events don't update the device */
+ return DEFAULT;
+ }
+
+ k = device->key;
+ v = device->valuator;
+ b = device->button;
+
+ key = event->detail.key;
+ bit = 1 << (key & 7);
+
+ /* Update device axis */
+ /* Check valuators first */
+ last_valuator = -1;
+ for (i = 0; i < MAX_VALUATORS; i++)
+ {
+ if (BitIsOn(&event->valuators.mask, i))
+ {
+ if (!v)
+ {
+ ErrorF("[Xi] Valuators reported for non-valuator device '%s'. "
+ "Ignoring event.\n", device->name);
+ return DONT_PROCESS;
+ } else if (v->numAxes < i)
+ {
+ ErrorF("[Xi] Too many valuators reported for device '%s'. "
+ "Ignoring event.\n", device->name);
+ return DONT_PROCESS;
+ }
+ last_valuator = i;
+ }
+ }
+
+ for (i = 0; i <= last_valuator && i < v->numAxes; i++)
+ {
+ if (BitIsOn(&event->valuators.mask, i))
+ {
+ /* XXX: Relative/Absolute mode */
+ v->axisVal[i] = event->valuators.data[i];
+ v->axisVal[i] += (event->valuators.data_frac[i] * 1.0f / (1 << 16) / (1 << 16));
+ }
+ }
+
+ if (event->type == ET_KeyPress) {
+ if (!k)
+ return DONT_PROCESS;
+
+ /* don't allow ddx to generate multiple downs, but repeats are okay */
+ if (key_is_down(device, key, KEY_PROCESSED) && !event->key_repeat)
+ return DONT_PROCESS;
+
+ if (device->valuator)
+ device->valuator->motionHintWindow = NullWindow;
+ set_key_down(device, key, KEY_PROCESSED);
+ } else if (event->type == ET_KeyRelease) {
+ if (!k)
+ return DONT_PROCESS;
+
+ if (!key_is_down(device, key, KEY_PROCESSED)) /* guard against duplicates */
+ return DONT_PROCESS;
+ if (device->valuator)
+ device->valuator->motionHintWindow = NullWindow;
+ set_key_up(device, key, KEY_PROCESSED);
+ } else if (event->type == ET_ButtonPress) {
+ Mask mask;
+ if (!b)
+ return DONT_PROCESS;
+
+ if (button_is_down(device, key, BUTTON_PROCESSED))
+ return DONT_PROCESS;
+
+ set_button_down(device, key, BUTTON_PROCESSED);
+ if (device->valuator)
+ device->valuator->motionHintWindow = NullWindow;
+ if (!b->map[key])
+ return DONT_PROCESS;
+ b->buttonsDown++;
+ b->motionMask = DeviceButtonMotionMask;
+ if (b->map[key] <= 5)
+ b->state |= (Button1Mask >> 1) << b->map[key];
+
+ /* Add state and motionMask to the filter for this event */
+ mask = DevicePointerMotionMask | b->state | b->motionMask;
+ SetMaskForEvent(device->id, mask, DeviceMotionNotify);
+ mask = PointerMotionMask | b->state | b->motionMask;
+ SetMaskForEvent(device->id, mask, MotionNotify);
+ } else if (event->type == ET_ButtonRelease) {
+ Mask mask;
+ if (!b)
+ return DONT_PROCESS;
+
+ if (!button_is_down(device, key, BUTTON_PROCESSED))
+ return DONT_PROCESS;
+ if (IsMaster(device)) {
+ DeviceIntPtr sd;
+
+ /*
+ * Leave the button down if any slave has the
+ * button still down. Note that this depends on the
+ * event being delivered through the slave first
+ */
+ for (sd = inputInfo.devices; sd; sd = sd->next) {
+ if (IsMaster(sd) || sd->u.master != device)
+ continue;
+ if (!sd->button)
+ continue;
+ for (i = 1; i <= sd->button->numButtons; i++)
+ if (sd->button->map[i] == key &&
+ button_is_down(sd, i, BUTTON_PROCESSED))
+ return DONT_PROCESS;
+ }
+ }
+ set_button_up(device, key, BUTTON_PROCESSED);
+ if (device->valuator)
+ device->valuator->motionHintWindow = NullWindow;
+ if (!b->map[key])
+ return DONT_PROCESS;
+ if (b->buttonsDown >= 1 && !--b->buttonsDown)
+ b->motionMask = 0;
+ if (b->map[key] <= 5)
+ b->state &= ~((Button1Mask >> 1) << b->map[key]);
+
+ /* Add state and motionMask to the filter for this event */
+ mask = DevicePointerMotionMask | b->state | b->motionMask;
+ SetMaskForEvent(device->id, mask, DeviceMotionNotify);
+ mask = PointerMotionMask | b->state | b->motionMask;
+ SetMaskForEvent(device->id, mask, MotionNotify);
+ } else if (event->type == ET_ProximityIn)
+ device->proximity->in_proximity = TRUE;
+ else if (event->type == ET_ProximityOut)
+ device->proximity->in_proximity = FALSE;
+
+ return DEFAULT;
+}
+
+static void
+ProcessRawEvent(RawDeviceEvent *ev, DeviceIntPtr device)
+{
+ GrabPtr grab = device->deviceGrab.grab;
+
+ if (grab)
+ DeliverGrabbedEvent((InternalEvent*)ev, device, FALSE);
+ else { /* deliver to all root windows */
+ xEvent *xi;
+ int i;
+
+ i = EventToXI2((InternalEvent*)ev, (xEvent**)&xi);
+ if (i != Success)
+ {
+ ErrorF("[Xi] %s: XI2 conversion failed in ProcessRawEvent (%d)\n",
+ device->name, i);
+ return;
+ }
+
+ for (i = 0; i < screenInfo.numScreens; i++)
+ DeliverEventsToWindow(device, screenInfo.screens[i]->root, xi, 1,
+ GetEventFilter(device, xi), NULL);
+ free(xi);
+ }
+}
+
+/**
+ * Main device event processing function.
+ * Called from when processing the events from the event queue.
+ *
+ */
+void
+ProcessOtherEvent(InternalEvent *ev, DeviceIntPtr device)
+{
+ GrabPtr grab;
+ Bool deactivateDeviceGrab = FALSE;
+ int key = 0, rootX, rootY;
+ ButtonClassPtr b;
+ KeyClassPtr k;
+ ValuatorClassPtr v;
+ int ret = 0;
+ int state, i;
+ DeviceIntPtr mouse = NULL, kbd = NULL;
+ DeviceEvent *event = &ev->device_event;
+
+ CHECKEVENT(ev);
+
+ if (ev->any.type == ET_RawKeyPress ||
+ ev->any.type == ET_RawKeyRelease ||
+ ev->any.type == ET_RawButtonPress ||
+ ev->any.type == ET_RawButtonRelease ||
+ ev->any.type == ET_RawMotion)
+ {
+ ProcessRawEvent(&ev->raw_event, device);
+ return;
+ }
+
+ if (IsPointerDevice(device))
+ {
+ kbd = GetPairedDevice(device);
+ mouse = device;
+ if (!kbd->key) /* can happen with floating SDs */
+ kbd = NULL;
+ } else
+ {
+ mouse = GetPairedDevice(device);
+ kbd = device;
+ if (!mouse->valuator || !mouse->button) /* may be float. SDs */
+ mouse = NULL;
+ }
+
+ /* State needs to be assembled BEFORE the device is updated. */
+ state = (kbd && kbd->key) ? XkbStateFieldFromRec(&kbd->key->xkbInfo->state) : 0;
+ state |= (mouse && mouse->button) ? (mouse->button->state) : 0;
+
+ for (i = 0; mouse && mouse->button && i < mouse->button->numButtons; i++)
+ if (BitIsOn(mouse->button->down, i))
+ SetBit(event->buttons, i);
+
+ if (kbd && kbd->key)
+ {
+ XkbStatePtr state;
+ /* we need the state before the event happens */
+ if (event->type == ET_KeyPress || event->type == ET_KeyRelease)
+ state = &kbd->key->xkbInfo->prev_state;
+ else
+ state = &kbd->key->xkbInfo->state;
+
+ event->mods.base = state->base_mods;
+ event->mods.latched = state->latched_mods;
+ event->mods.locked = state->locked_mods;
+ event->mods.effective = state->mods;
+
+ event->group.base = state->base_group;
+ event->group.latched = state->latched_group;
+ event->group.locked = state->locked_group;
+ event->group.effective = state->group;
+ }
+
+ ret = UpdateDeviceState(device, event);
+ if (ret == DONT_PROCESS)
+ return;
+
+ v = device->valuator;
+ b = device->button;
+ k = device->key;
+
+ if (IsMaster(device) || !device->u.master)
+ CheckMotion(event, device);
+
+ switch (event->type)
+ {
+ case ET_Motion:
+ case ET_ButtonPress:
+ case ET_ButtonRelease:
+ case ET_KeyPress:
+ case ET_KeyRelease:
+ case ET_ProximityIn:
+ case ET_ProximityOut:
+ GetSpritePosition(device, &rootX, &rootY);
+ event->root_x = rootX;
+ event->root_y = rootY;
+ NoticeEventTime((InternalEvent*)event);
+ event->corestate = state;
+ key = event->detail.key;
+ break;
+ default:
+ break;
+ }
+
+ if (DeviceEventCallback && !syncEvents.playingEvents) {
+ DeviceEventInfoRec eventinfo;
+ SpritePtr pSprite = device->spriteInfo->sprite;
+
+ /* see comment in EnqueueEvents regarding the next three lines */
+ if (ev->any.type == ET_Motion)
+ ev->device_event.root = pSprite->hotPhys.pScreen->root->drawable.id;
+
+ eventinfo.device = device;
+ eventinfo.event = ev;
+ CallCallbacks(&DeviceEventCallback, (pointer) & eventinfo);
+ }
+
+ grab = device->deviceGrab.grab;
+
+ switch(event->type)
+ {
+ case ET_KeyPress:
+ if (!grab && CheckDeviceGrabs(device, event, 0)) {
+ device->deviceGrab.activatingKey = key;
+ return;
+ }
+ break;
+ case ET_KeyRelease:
+ if (grab && device->deviceGrab.fromPassiveGrab &&
+ (key == device->deviceGrab.activatingKey) &&
+ (device->deviceGrab.grab->type == KeyPress ||
+ device->deviceGrab.grab->type == DeviceKeyPress ||
+ device->deviceGrab.grab->type == XI_KeyPress))
+ deactivateDeviceGrab = TRUE;
+ break;
+ case ET_ButtonPress:
+ event->detail.button = b->map[key];
+ if (!event->detail.button) { /* there's no button 0 */
+ event->detail.button = key;
+ return;
+ }
+ if (!grab && CheckDeviceGrabs(device, event, 0))
+ {
+ /* if a passive grab was activated, the event has been sent
+ * already */
+ return;
+ }
+ break;
+ case ET_ButtonRelease:
+ event->detail.button = b->map[key];
+ if (!event->detail.button) { /* there's no button 0 */
+ event->detail.button = key;
+ return;
+ }
+ if (grab && !b->buttonsDown &&
+ device->deviceGrab.fromPassiveGrab &&
+ (device->deviceGrab.grab->type == ButtonPress ||
+ device->deviceGrab.grab->type == DeviceButtonPress ||
+ device->deviceGrab.grab->type == XI_ButtonPress))
+ deactivateDeviceGrab = TRUE;
+ default:
+ break;
+ }
+
+
+ if (grab)
+ DeliverGrabbedEvent((InternalEvent*)event, device, deactivateDeviceGrab);
+ else if (device->focus && !IsPointerEvent((InternalEvent*)ev))
+ DeliverFocusedEvent(device, (InternalEvent*)event,
+ GetSpriteWindow(device));
+ else
+ DeliverDeviceEvents(GetSpriteWindow(device), (InternalEvent*)event,
+ NullGrab, NullWindow, device);
+
+ if (deactivateDeviceGrab == TRUE)
+ (*device->deviceGrab.DeactivateGrab) (device);
+ event->detail.key = key;
+}
+
+int
+InitProximityClassDeviceStruct(DeviceIntPtr dev)
+{
+ ProximityClassPtr proxc;
+
+ proxc = (ProximityClassPtr) malloc(sizeof(ProximityClassRec));
+ if (!proxc)
+ return FALSE;
+ proxc->sourceid = dev->id;
+ proxc->in_proximity = TRUE;
+ dev->proximity = proxc;
+ return TRUE;
+}
+
+/**
+ * Initialise the device's valuators. The memory must already be allocated,
+ * this function merely inits the matching axis (specified through axnum) to
+ * sane values.
+ *
+ * It is a condition that (minval < maxval).
+ *
+ * @see InitValuatorClassDeviceStruct
+ */
+void
+InitValuatorAxisStruct(DeviceIntPtr dev, int axnum, Atom label, int minval, int maxval,
+ int resolution, int min_res, int max_res, int mode)
+{
+ AxisInfoPtr ax;
+
+ if (!dev || !dev->valuator || minval > maxval)
+ return;
+ if (axnum >= dev->valuator->numAxes)
+ return;
+
+ ax = dev->valuator->axes + axnum;
+
+ ax->min_value = minval;
+ ax->max_value = maxval;
+ ax->resolution = resolution;
+ ax->min_resolution = min_res;
+ ax->max_resolution = max_res;
+ ax->label = label;
+ ax->mode = mode;
+
+ if (mode & OutOfProximity)
+ dev->proximity->in_proximity = FALSE;
+}
+
+static void
+FixDeviceStateNotify(DeviceIntPtr dev, deviceStateNotify * ev, KeyClassPtr k,
+ ButtonClassPtr b, ValuatorClassPtr v, int first)
+{
+ ev->type = DeviceStateNotify;
+ ev->deviceid = dev->id;
+ ev->time = currentTime.milliseconds;
+ ev->classes_reported = 0;
+ ev->num_keys = 0;
+ ev->num_buttons = 0;
+ ev->num_valuators = 0;
+
+ if (b) {
+ ev->classes_reported |= (1 << ButtonClass);
+ ev->num_buttons = b->numButtons;
+ memcpy((char*)ev->buttons, (char*)b->down, 4);
+ } else if (k) {
+ ev->classes_reported |= (1 << KeyClass);
+ ev->num_keys = k->xkbInfo->desc->max_key_code -
+ k->xkbInfo->desc->min_key_code;
+ memmove((char *)&ev->keys[0], (char *)k->down, 4);
+ }
+ if (v) {
+ int nval = v->numAxes - first;
+
+ ev->classes_reported |= (1 << ValuatorClass);
+ ev->classes_reported |= valuator_get_mode(dev, 0) << ModeBitsShift;
+ ev->num_valuators = nval < 3 ? nval : 3;
+ switch (ev->num_valuators) {
+ case 3:
+ ev->valuator2 = v->axisVal[first + 2];
+ case 2:
+ ev->valuator1 = v->axisVal[first + 1];
+ case 1:
+ ev->valuator0 = v->axisVal[first];
+ break;
+ }
+ }
+}
+
+static void
+FixDeviceValuator(DeviceIntPtr dev, deviceValuator * ev, ValuatorClassPtr v,
+ int first)
+{
+ int nval = v->numAxes - first;
+
+ ev->type = DeviceValuator;
+ ev->deviceid = dev->id;
+ ev->num_valuators = nval < 3 ? nval : 3;
+ ev->first_valuator = first;
+ switch (ev->num_valuators) {
+ case 3:
+ ev->valuator2 = v->axisVal[first + 2];
+ case 2:
+ ev->valuator1 = v->axisVal[first + 1];
+ case 1:
+ ev->valuator0 = v->axisVal[first];
+ break;
+ }
+ first += ev->num_valuators;
+}
+
+void
+DeviceFocusEvent(DeviceIntPtr dev, int type, int mode, int detail,
+ WindowPtr pWin)
+{
+ deviceFocus event;
+ xXIFocusInEvent *xi2event;
+ DeviceIntPtr mouse;
+ int btlen, len, i;
+
+ mouse = (IsMaster(dev) || dev->u.master) ? GetMaster(dev, MASTER_POINTER) : dev;
+
+ /* XI 2 event */
+ btlen = (mouse->button) ? bits_to_bytes(mouse->button->numButtons) : 0;
+ btlen = bytes_to_int32(btlen);
+ len = sizeof(xXIFocusInEvent) + btlen * 4;
+
+ xi2event = calloc(1, len);
+ xi2event->type = GenericEvent;
+ xi2event->extension = IReqCode;
+ xi2event->evtype = type;
+ xi2event->length = bytes_to_int32(len - sizeof(xEvent));
+ xi2event->buttons_len = btlen;
+ xi2event->detail = detail;
+ xi2event->time = currentTime.milliseconds;
+ xi2event->deviceid = dev->id;
+ xi2event->sourceid = dev->id; /* a device doesn't change focus by itself */
+ xi2event->mode = mode;
+ xi2event->root_x = FP1616(mouse->spriteInfo->sprite->hot.x, 0);
+ xi2event->root_y = FP1616(mouse->spriteInfo->sprite->hot.y, 0);
+
+ for (i = 0; mouse && mouse->button && i < mouse->button->numButtons; i++)
+ if (BitIsOn(mouse->button->down, i))
+ SetBit(&xi2event[1], i);
+
+ if (dev->key)
+ {
+ xi2event->mods.base_mods = dev->key->xkbInfo->state.base_mods;
+ xi2event->mods.latched_mods = dev->key->xkbInfo->state.latched_mods;
+ xi2event->mods.locked_mods = dev->key->xkbInfo->state.locked_mods;
+ xi2event->mods.effective_mods = dev->key->xkbInfo->state.mods;
+
+ xi2event->group.base_group = dev->key->xkbInfo->state.base_group;
+ xi2event->group.latched_group = dev->key->xkbInfo->state.latched_group;
+ xi2event->group.locked_group = dev->key->xkbInfo->state.locked_group;
+ xi2event->group.effective_group = dev->key->xkbInfo->state.group;
+ }
+
+ FixUpEventFromWindow(dev->spriteInfo->sprite, (xEvent*)xi2event, pWin,
+ None, FALSE);
+
+ DeliverEventsToWindow(dev, pWin, (xEvent*)xi2event, 1,
+ GetEventFilter(dev, (xEvent*)xi2event), NullGrab);
+
+ free(xi2event);
+
+ /* XI 1.x event */
+ event.deviceid = dev->id;
+ event.mode = mode;
+ event.type = (type == XI_FocusIn) ? DeviceFocusIn : DeviceFocusOut;
+ event.detail = detail;
+ event.window = pWin->drawable.id;
+ event.time = currentTime.milliseconds;
+
+ DeliverEventsToWindow(dev, pWin, (xEvent *) & event, 1,
+ DeviceFocusChangeMask, NullGrab);
+
+ if ((event.type == DeviceFocusIn) &&
+ (wOtherInputMasks(pWin)) &&
+ (wOtherInputMasks(pWin)->inputEvents[dev->id] & DeviceStateNotifyMask))
+ {
+ int evcount = 1;
+ deviceStateNotify *ev, *sev;
+ deviceKeyStateNotify *kev;
+ deviceButtonStateNotify *bev;
+
+ KeyClassPtr k;
+ ButtonClassPtr b;
+ ValuatorClassPtr v;
+ int nval = 0, nkeys = 0, nbuttons = 0, first = 0;
+
+ if ((b = dev->button) != NULL) {
+ nbuttons = b->numButtons;
+ if (nbuttons > 32)
+ evcount++;
+ }
+ if ((k = dev->key) != NULL) {
+ nkeys = k->xkbInfo->desc->max_key_code -
+ k->xkbInfo->desc->min_key_code;
+ if (nkeys > 32)
+ evcount++;
+ if (nbuttons > 0) {
+ evcount++;
+ }
+ }
+ if ((v = dev->valuator) != NULL) {
+ nval = v->numAxes;
+
+ if (nval > 3)
+ evcount++;
+ if (nval > 6) {
+ if (!(k && b))
+ evcount++;
+ if (nval > 9)
+ evcount += ((nval - 7) / 3);
+ }
+ }
+
+ sev = ev = (deviceStateNotify *) malloc(evcount * sizeof(xEvent));
+ FixDeviceStateNotify(dev, ev, NULL, NULL, NULL, first);
+
+ if (b != NULL) {
+ FixDeviceStateNotify(dev, ev++, NULL, b, v, first);
+ first += 3;
+ nval -= 3;
+ if (nbuttons > 32) {
+ (ev - 1)->deviceid |= MORE_EVENTS;
+ bev = (deviceButtonStateNotify *) ev++;
+ bev->type = DeviceButtonStateNotify;
+ bev->deviceid = dev->id;
+ memcpy((char*)&bev->buttons[4], (char*)&b->down[4], DOWN_LENGTH - 4);
+ }
+ if (nval > 0) {
+ (ev - 1)->deviceid |= MORE_EVENTS;
+ FixDeviceValuator(dev, (deviceValuator *) ev++, v, first);
+ first += 3;
+ nval -= 3;
+ }
+ }
+
+ if (k != NULL) {
+ FixDeviceStateNotify(dev, ev++, k, NULL, v, first);
+ first += 3;
+ nval -= 3;
+ if (nkeys > 32) {
+ (ev - 1)->deviceid |= MORE_EVENTS;
+ kev = (deviceKeyStateNotify *) ev++;
+ kev->type = DeviceKeyStateNotify;
+ kev->deviceid = dev->id;
+ memmove((char *)&kev->keys[0], (char *)&k->down[4], 28);
+ }
+ if (nval > 0) {
+ (ev - 1)->deviceid |= MORE_EVENTS;
+ FixDeviceValuator(dev, (deviceValuator *) ev++, v, first);
+ first += 3;
+ nval -= 3;
+ }
+ }
+
+ while (nval > 0) {
+ FixDeviceStateNotify(dev, ev++, NULL, NULL, v, first);
+ first += 3;
+ nval -= 3;
+ if (nval > 0) {
+ (ev - 1)->deviceid |= MORE_EVENTS;
+ FixDeviceValuator(dev, (deviceValuator *) ev++, v, first);
+ first += 3;
+ nval -= 3;
+ }
+ }
+
+ DeliverEventsToWindow(dev, pWin, (xEvent *) sev, evcount,
+ DeviceStateNotifyMask, NullGrab);
+ free(sev);
+ }
+}
+
+int
+CheckGrabValues(ClientPtr client, GrabParameters* param)
+{
+ if (param->grabtype != GRABTYPE_CORE &&
+ param->grabtype != GRABTYPE_XI &&
+ param->grabtype != GRABTYPE_XI2)
+ {
+ ErrorF("[Xi] grabtype is invalid. This is a bug.\n");
+ return BadImplementation;
+ }
+
+ if ((param->this_device_mode != GrabModeSync) &&
+ (param->this_device_mode != GrabModeAsync)) {
+ client->errorValue = param->this_device_mode;
+ return BadValue;
+ }
+ if ((param->other_devices_mode != GrabModeSync) &&
+ (param->other_devices_mode != GrabModeAsync)) {
+ client->errorValue = param->other_devices_mode;
+ return BadValue;
+ }
+
+ if (param->grabtype != GRABTYPE_XI2 && (param->modifiers != AnyModifier) &&
+ (param->modifiers & ~AllModifiersMask)) {
+ client->errorValue = param->modifiers;
+ return BadValue;
+ }
+
+ if ((param->ownerEvents != xFalse) && (param->ownerEvents != xTrue)) {
+ client->errorValue = param->ownerEvents;
+ return BadValue;
+ }
+ return Success;
+}
+
+int
+GrabButton(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr modifier_device,
+ int button, GrabParameters *param, GrabType grabtype,
+ GrabMask *mask)
+{
+ WindowPtr pWin, confineTo;
+ CursorPtr cursor;
+ GrabPtr grab;
+ int rc, type = -1;
+ Mask access_mode = DixGrabAccess;
+
+ rc = CheckGrabValues(client, param);
+ if (rc != Success)
+ return rc;
+ if (param->confineTo == None)
+ confineTo = NullWindow;
+ else {
+ rc = dixLookupWindow(&confineTo, param->confineTo, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ }
+ if (param->cursor == None)
+ cursor = NullCursor;
+ else {
+ rc = dixLookupResourceByType((pointer *)&cursor, param->cursor,
+ RT_CURSOR, client, DixUseAccess);
+ if (rc != Success)
+ {
+ client->errorValue = param->cursor;
+ return rc;
+ }
+ access_mode |= DixForceAccess;
+ }
+ if (param->this_device_mode == GrabModeSync || param->other_devices_mode == GrabModeSync)
+ access_mode |= DixFreezeAccess;
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode);
+ if (rc != Success)
+ return rc;
+ rc = dixLookupWindow(&pWin, param->grabWindow, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ if (grabtype == GRABTYPE_XI)
+ type = DeviceButtonPress;
+ else if (grabtype == GRABTYPE_XI2)
+ type = XI_ButtonPress;
+
+ grab = CreateGrab(client->index, dev, modifier_device, pWin, grabtype,
+ mask, param, type, button, confineTo, cursor);
+ if (!grab)
+ return BadAlloc;
+ return AddPassiveGrabToList(client, grab);
+}
+
+/**
+ * Grab the given key. If grabtype is GRABTYPE_XI, the key is a keycode. If
+ * grabtype is GRABTYPE_XI2, the key is a keysym.
+ */
+int
+GrabKey(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr modifier_device,
+ int key, GrabParameters *param, GrabType grabtype, GrabMask *mask)
+{
+ WindowPtr pWin;
+ GrabPtr grab;
+ KeyClassPtr k = dev->key;
+ Mask access_mode = DixGrabAccess;
+ int rc, type = -1;
+
+ rc = CheckGrabValues(client, param);
+ if (rc != Success)
+ return rc;
+ if (k == NULL)
+ return BadMatch;
+ if (grabtype == GRABTYPE_XI)
+ {
+ if ((key > k->xkbInfo->desc->max_key_code ||
+ key < k->xkbInfo->desc->min_key_code)
+ && (key != AnyKey)) {
+ client->errorValue = key;
+ return BadValue;
+ }
+ type = DeviceKeyPress;
+ } else if (grabtype == GRABTYPE_XI2)
+ type = XI_KeyPress;
+
+ rc = dixLookupWindow(&pWin, param->grabWindow, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ if (param->this_device_mode == GrabModeSync || param->other_devices_mode == GrabModeSync)
+ access_mode |= DixFreezeAccess;
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode);
+ if (rc != Success)
+ return rc;
+
+ grab = CreateGrab(client->index, dev, modifier_device, pWin, grabtype,
+ mask, param, type, key, NULL, NULL);
+ if (!grab)
+ return BadAlloc;
+ return AddPassiveGrabToList(client, grab);
+}
+
+/* Enter/FocusIn grab */
+int
+GrabWindow(ClientPtr client, DeviceIntPtr dev, int type,
+ GrabParameters *param, GrabMask *mask)
+{
+ WindowPtr pWin;
+ CursorPtr cursor;
+ GrabPtr grab;
+ Mask access_mode = DixGrabAccess;
+ int rc;
+
+ rc = CheckGrabValues(client, param);
+ if (rc != Success)
+ return rc;
+
+ rc = dixLookupWindow(&pWin, param->grabWindow, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ if (param->cursor == None)
+ cursor = NullCursor;
+ else {
+ rc = dixLookupResourceByType((pointer *)&cursor, param->cursor,
+ RT_CURSOR, client, DixUseAccess);
+ if (rc != Success)
+ {
+ client->errorValue = param->cursor;
+ return rc;
+ }
+ access_mode |= DixForceAccess;
+ }
+ if (param->this_device_mode == GrabModeSync || param->other_devices_mode == GrabModeSync)
+ access_mode |= DixFreezeAccess;
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode);
+ if (rc != Success)
+ return rc;
+
+ grab = CreateGrab(client->index, dev, dev, pWin, GRABTYPE_XI2,
+ mask, param, (type == XIGrabtypeEnter) ? XI_Enter : XI_FocusIn,
+ 0, NULL, cursor);
+
+ if (!grab)
+ return BadAlloc;
+
+ return AddPassiveGrabToList(client, grab);
+}
+
+int
+SelectForWindow(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client,
+ Mask mask, Mask exclusivemasks)
+{
+ int mskidx = dev->id;
+ int i, ret;
+ Mask check;
+ InputClientsPtr others;
+
+ check = (mask & exclusivemasks);
+ if (wOtherInputMasks(pWin)) {
+ if (check & wOtherInputMasks(pWin)->inputEvents[mskidx]) { /* It is illegal for two different
+ * clients to select on any of the
+ * events for maskcheck. However,
+ * it is OK, for some client to
+ * continue selecting on one of those
+ * events. */
+ for (others = wOtherInputMasks(pWin)->inputClients; others;
+ others = others->next) {
+ if (!SameClient(others, client) && (check &
+ others->mask[mskidx]))
+ return BadAccess;
+ }
+ }
+ for (others = wOtherInputMasks(pWin)->inputClients; others;
+ others = others->next) {
+ if (SameClient(others, client)) {
+ check = others->mask[mskidx];
+ others->mask[mskidx] = mask;
+ if (mask == 0) {
+ for (i = 0; i < EMASKSIZE; i++)
+ if (i != mskidx && others->mask[i] != 0)
+ break;
+ if (i == EMASKSIZE) {
+ RecalculateDeviceDeliverableEvents(pWin);
+ if (ShouldFreeInputMasks(pWin, FALSE))
+ FreeResource(others->resource, RT_NONE);
+ return Success;
+ }
+ }
+ goto maskSet;
+ }
+ }
+ }
+ check = 0;
+ if ((ret = AddExtensionClient(pWin, client, mask, mskidx)) != Success)
+ return ret;
+ maskSet:
+ if (dev->valuator)
+ if ((dev->valuator->motionHintWindow == pWin) &&
+ (mask & DevicePointerMotionHintMask) &&
+ !(check & DevicePointerMotionHintMask) && !dev->deviceGrab.grab)
+ dev->valuator->motionHintWindow = NullWindow;
+ RecalculateDeviceDeliverableEvents(pWin);
+ return Success;
+}
+
+int
+AddExtensionClient(WindowPtr pWin, ClientPtr client, Mask mask, int mskidx)
+{
+ InputClientsPtr others;
+
+ if (!pWin->optional && !MakeWindowOptional(pWin))
+ return BadAlloc;
+ others = calloc(1, sizeof(InputClients));
+ if (!others)
+ return BadAlloc;
+ if (!pWin->optional->inputMasks && !MakeInputMasks(pWin))
+ goto bail;
+ others->mask[mskidx] = mask;
+ others->resource = FakeClientID(client->index);
+ others->next = pWin->optional->inputMasks->inputClients;
+ pWin->optional->inputMasks->inputClients = others;
+ if (!AddResource(others->resource, RT_INPUTCLIENT, (pointer) pWin))
+ goto bail;
+ return Success;
+
+bail:
+ free(others);
+ return BadAlloc;
+}
+
+static Bool
+MakeInputMasks(WindowPtr pWin)
+{
+ struct _OtherInputMasks *imasks;
+
+ imasks = calloc(1, sizeof(struct _OtherInputMasks));
+ if (!imasks)
+ return FALSE;
+ pWin->optional->inputMasks = imasks;
+ return TRUE;
+}
+
+void
+RecalculateDeviceDeliverableEvents(WindowPtr pWin)
+{
+ InputClientsPtr others;
+ struct _OtherInputMasks *inputMasks; /* default: NULL */
+ WindowPtr pChild, tmp;
+ int i, j;
+
+ pChild = pWin;
+ while (1) {
+ if ((inputMasks = wOtherInputMasks(pChild)) != 0) {
+ for (i = 0; i < EMASKSIZE; i++)
+ memset(inputMasks->xi2mask[i], 0, sizeof(inputMasks->xi2mask[i]));
+ for (others = inputMasks->inputClients; others;
+ others = others->next) {
+ for (i = 0; i < EMASKSIZE; i++)
+ inputMasks->inputEvents[i] |= others->mask[i];
+ for (i = 0; i < EMASKSIZE; i++)
+ for (j = 0; j < XI2MASKSIZE; j++)
+ inputMasks->xi2mask[i][j] |= others->xi2mask[i][j];
+ }
+ for (i = 0; i < EMASKSIZE; i++)
+ inputMasks->deliverableEvents[i] = inputMasks->inputEvents[i];
+ for (tmp = pChild->parent; tmp; tmp = tmp->parent)
+ if (wOtherInputMasks(tmp))
+ for (i = 0; i < EMASKSIZE; i++)
+ inputMasks->deliverableEvents[i] |=
+ (wOtherInputMasks(tmp)->deliverableEvents[i]
+ & ~inputMasks->
+ dontPropagateMask[i] & PropagateMask[i]);
+ }
+ if (pChild->firstChild) {
+ pChild = pChild->firstChild;
+ continue;
+ }
+ while (!pChild->nextSib && (pChild != pWin))
+ pChild = pChild->parent;
+ if (pChild == pWin)
+ break;
+ pChild = pChild->nextSib;
+ }
+}
+
+int
+InputClientGone(WindowPtr pWin, XID id)
+{
+ InputClientsPtr other, prev;
+
+ if (!wOtherInputMasks(pWin))
+ return Success;
+ prev = 0;
+ for (other = wOtherInputMasks(pWin)->inputClients; other;
+ other = other->next) {
+ if (other->resource == id) {
+ if (prev) {
+ prev->next = other->next;
+ free(other);
+ } else if (!(other->next)) {
+ if (ShouldFreeInputMasks(pWin, TRUE)) {
+ wOtherInputMasks(pWin)->inputClients = other->next;
+ free(wOtherInputMasks(pWin));
+ pWin->optional->inputMasks = (OtherInputMasks *) NULL;
+ CheckWindowOptionalNeed(pWin);
+ free(other);
+ } else {
+ other->resource = FakeClientID(0);
+ if (!AddResource(other->resource, RT_INPUTCLIENT,
+ (pointer) pWin))
+ return BadAlloc;
+ }
+ } else {
+ wOtherInputMasks(pWin)->inputClients = other->next;
+ free(other);
+ }
+ RecalculateDeviceDeliverableEvents(pWin);
+ return Success;
+ }
+ prev = other;
+ }
+ FatalError("client not on device event list");
+}
+
+int
+SendEvent(ClientPtr client, DeviceIntPtr d, Window dest, Bool propagate,
+ xEvent * ev, Mask mask, int count)
+{
+ WindowPtr pWin;
+ WindowPtr effectiveFocus = NullWindow; /* only set if dest==InputFocus */
+ WindowPtr spriteWin = GetSpriteWindow(d);
+
+ if (dest == PointerWindow)
+ pWin = spriteWin;
+ else if (dest == InputFocus) {
+ WindowPtr inputFocus;
+
+ if (!d->focus)
+ inputFocus = spriteWin;
+ else
+ inputFocus = d->focus->win;
+
+ if (inputFocus == FollowKeyboardWin)
+ inputFocus = inputInfo.keyboard->focus->win;
+
+ if (inputFocus == NoneWin)
+ return Success;
+
+ /* If the input focus is PointerRootWin, send the event to where
+ * the pointer is if possible, then perhaps propogate up to root. */
+ if (inputFocus == PointerRootWin)
+ inputFocus = GetCurrentRootWindow(d);
+
+ if (IsParent(inputFocus, spriteWin)) {
+ effectiveFocus = inputFocus;
+ pWin = spriteWin;
+ } else
+ effectiveFocus = pWin = inputFocus;
+ } else
+ dixLookupWindow(&pWin, dest, client, DixSendAccess);
+ if (!pWin)
+ return BadWindow;
+ if ((propagate != xFalse) && (propagate != xTrue)) {
+ client->errorValue = propagate;
+ return BadValue;
+ }
+ ev->u.u.type |= 0x80;
+ if (propagate) {
+ for (; pWin; pWin = pWin->parent) {
+ if (DeliverEventsToWindow(d, pWin, ev, count, mask, NullGrab))
+ return Success;
+ if (pWin == effectiveFocus)
+ return Success;
+ if (wOtherInputMasks(pWin))
+ mask &= ~wOtherInputMasks(pWin)->dontPropagateMask[d->id];
+ if (!mask)
+ break;
+ }
+ } else if (!XaceHook(XACE_SEND_ACCESS, client, NULL, pWin, ev, count))
+ DeliverEventsToWindow(d, pWin, ev, count, mask, NullGrab);
+ return Success;
+}
+
+int
+SetButtonMapping(ClientPtr client, DeviceIntPtr dev, int nElts, BYTE * map)
+{
+ int i;
+ ButtonClassPtr b = dev->button;
+
+ if (b == NULL)
+ return BadMatch;
+
+ if (nElts != b->numButtons) {
+ client->errorValue = nElts;
+ return BadValue;
+ }
+ if (BadDeviceMap(&map[0], nElts, 1, 255, &client->errorValue))
+ return BadValue;
+ for (i = 0; i < nElts; i++)
+ if ((b->map[i + 1] != map[i]) && BitIsOn(b->down, i + 1))
+ return MappingBusy;
+ for (i = 0; i < nElts; i++)
+ b->map[i + 1] = map[i];
+ return Success;
+}
+
+int
+ChangeKeyMapping(ClientPtr client,
+ DeviceIntPtr dev,
+ unsigned len,
+ int type,
+ KeyCode firstKeyCode,
+ CARD8 keyCodes, CARD8 keySymsPerKeyCode, KeySym * map)
+{
+ KeySymsRec keysyms;
+ KeyClassPtr k = dev->key;
+
+ if (k == NULL)
+ return BadMatch;
+
+ if (len != (keyCodes * keySymsPerKeyCode))
+ return BadLength;
+
+ if ((firstKeyCode < k->xkbInfo->desc->min_key_code) ||
+ (firstKeyCode + keyCodes - 1 > k->xkbInfo->desc->max_key_code)) {
+ client->errorValue = firstKeyCode;
+ return BadValue;
+ }
+ if (keySymsPerKeyCode == 0) {
+ client->errorValue = 0;
+ return BadValue;
+ }
+ keysyms.minKeyCode = firstKeyCode;
+ keysyms.maxKeyCode = firstKeyCode + keyCodes - 1;
+ keysyms.mapWidth = keySymsPerKeyCode;
+ keysyms.map = map;
+
+ XkbApplyMappingChange(dev, &keysyms, firstKeyCode, keyCodes, NULL,
+ serverClient);
+
+ return Success;
+}
+
+static void
+DeleteDeviceFromAnyExtEvents(WindowPtr pWin, DeviceIntPtr dev)
+{
+ WindowPtr parent;
+
+ /* Deactivate any grabs performed on this window, before making
+ * any input focus changes.
+ * Deactivating a device grab should cause focus events. */
+
+ if (dev->deviceGrab.grab && (dev->deviceGrab.grab->window == pWin))
+ (*dev->deviceGrab.DeactivateGrab) (dev);
+
+ /* If the focus window is a root window (ie. has no parent)
+ * then don't delete the focus from it. */
+
+ if (dev->focus && (pWin == dev->focus->win) && (pWin->parent != NullWindow)) {
+ int focusEventMode = NotifyNormal;
+
+ /* If a grab is in progress, then alter the mode of focus events. */
+
+ if (dev->deviceGrab.grab)
+ focusEventMode = NotifyWhileGrabbed;
+
+ switch (dev->focus->revert) {
+ case RevertToNone:
+ if (!ActivateFocusInGrab(dev, pWin, NoneWin))
+ DoFocusEvents(dev, pWin, NoneWin, focusEventMode);
+ dev->focus->win = NoneWin;
+ dev->focus->traceGood = 0;
+ break;
+ case RevertToParent:
+ parent = pWin;
+ do {
+ parent = parent->parent;
+ dev->focus->traceGood--;
+ }
+ while (!parent->realized);
+ if (!ActivateFocusInGrab(dev, pWin, parent))
+ DoFocusEvents(dev, pWin, parent, focusEventMode);
+ dev->focus->win = parent;
+ dev->focus->revert = RevertToNone;
+ break;
+ case RevertToPointerRoot:
+ if (!ActivateFocusInGrab(dev, pWin, PointerRootWin))
+ DoFocusEvents(dev, pWin, PointerRootWin, focusEventMode);
+ dev->focus->win = PointerRootWin;
+ dev->focus->traceGood = 0;
+ break;
+ case RevertToFollowKeyboard:
+ {
+ DeviceIntPtr kbd = GetMaster(dev, MASTER_KEYBOARD);
+ if (!kbd || (kbd == dev && kbd != inputInfo.keyboard))
+ kbd = inputInfo.keyboard;
+ if (kbd->focus->win) {
+ if (!ActivateFocusInGrab(dev, pWin, kbd->focus->win))
+ DoFocusEvents(dev, pWin, kbd->focus->win, focusEventMode);
+ dev->focus->win = FollowKeyboardWin;
+ dev->focus->traceGood = 0;
+ } else {
+ if (!ActivateFocusInGrab(dev, pWin, NoneWin))
+ DoFocusEvents(dev, pWin, NoneWin, focusEventMode);
+ dev->focus->win = NoneWin;
+ dev->focus->traceGood = 0;
+ }
+ }
+ break;
+ }
+ }
+
+ if (dev->valuator)
+ if (dev->valuator->motionHintWindow == pWin)
+ dev->valuator->motionHintWindow = NullWindow;
+}
+
+void
+DeleteWindowFromAnyExtEvents(WindowPtr pWin, Bool freeResources)
+{
+ int i;
+ DeviceIntPtr dev;
+ InputClientsPtr ic;
+ struct _OtherInputMasks *inputMasks;
+
+ for (dev = inputInfo.devices; dev; dev = dev->next) {
+ DeleteDeviceFromAnyExtEvents(pWin, dev);
+ }
+
+ for (dev = inputInfo.off_devices; dev; dev = dev->next)
+ DeleteDeviceFromAnyExtEvents(pWin, dev);
+
+ if (freeResources)
+ while ((inputMasks = wOtherInputMasks(pWin)) != 0) {
+ ic = inputMasks->inputClients;
+ for (i = 0; i < EMASKSIZE; i++)
+ inputMasks->dontPropagateMask[i] = 0;
+ FreeResource(ic->resource, RT_NONE);
+ }
+}
+
+int
+MaybeSendDeviceMotionNotifyHint(deviceKeyButtonPointer * pEvents, Mask mask)
+{
+ DeviceIntPtr dev;
+
+ dixLookupDevice(&dev, pEvents->deviceid & DEVICE_BITS, serverClient,
+ DixReadAccess);
+ if (!dev)
+ return 0;
+
+ if (pEvents->type == DeviceMotionNotify) {
+ if (mask & DevicePointerMotionHintMask) {
+ if (WID(dev->valuator->motionHintWindow) == pEvents->event) {
+ return 1; /* don't send, but pretend we did */
+ }
+ pEvents->detail = NotifyHint;
+ } else {
+ pEvents->detail = NotifyNormal;
+ }
+ }
+ return 0;
+}
+
+void
+CheckDeviceGrabAndHintWindow(WindowPtr pWin, int type,
+ deviceKeyButtonPointer * xE, GrabPtr grab,
+ ClientPtr client, Mask deliveryMask)
+{
+ DeviceIntPtr dev;
+
+ dixLookupDevice(&dev, xE->deviceid & DEVICE_BITS, serverClient,
+ DixGrabAccess);
+ if (!dev)
+ return;
+
+ if (type == DeviceMotionNotify)
+ dev->valuator->motionHintWindow = pWin;
+ else if ((type == DeviceButtonPress) && (!grab) &&
+ (deliveryMask & DeviceButtonGrabMask)) {
+ GrabRec tempGrab;
+
+ tempGrab.device = dev;
+ tempGrab.resource = client->clientAsMask;
+ tempGrab.window = pWin;
+ tempGrab.ownerEvents =
+ (deliveryMask & DeviceOwnerGrabButtonMask) ? TRUE : FALSE;
+ tempGrab.eventMask = deliveryMask;
+ tempGrab.keyboardMode = GrabModeAsync;
+ tempGrab.pointerMode = GrabModeAsync;
+ tempGrab.confineTo = NullWindow;
+ tempGrab.cursor = NullCursor;
+ tempGrab.next = NULL;
+ (*dev->deviceGrab.ActivateGrab) (dev, &tempGrab, currentTime, TRUE);
+ }
+}
+
+static Mask
+DeviceEventMaskForClient(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client)
+{
+ InputClientsPtr other;
+
+ if (!wOtherInputMasks(pWin))
+ return 0;
+ for (other = wOtherInputMasks(pWin)->inputClients; other;
+ other = other->next) {
+ if (SameClient(other, client))
+ return other->mask[dev->id];
+ }
+ return 0;
+}
+
+void
+MaybeStopDeviceHint(DeviceIntPtr dev, ClientPtr client)
+{
+ WindowPtr pWin;
+ GrabPtr grab = dev->deviceGrab.grab;
+
+ pWin = dev->valuator->motionHintWindow;
+
+ if ((grab && SameClient(grab, client) &&
+ ((grab->eventMask & DevicePointerMotionHintMask) ||
+ (grab->ownerEvents &&
+ (DeviceEventMaskForClient(dev, pWin, client) &
+ DevicePointerMotionHintMask)))) ||
+ (!grab &&
+ (DeviceEventMaskForClient(dev, pWin, client) &
+ DevicePointerMotionHintMask)))
+ dev->valuator->motionHintWindow = NullWindow;
+}
+
+int
+DeviceEventSuppressForWindow(WindowPtr pWin, ClientPtr client, Mask mask,
+ int maskndx)
+{
+ struct _OtherInputMasks *inputMasks = wOtherInputMasks(pWin);
+
+ if (mask & ~PropagateMask[maskndx]) {
+ client->errorValue = mask;
+ return BadValue;
+ }
+
+ if (mask == 0) {
+ if (inputMasks)
+ inputMasks->dontPropagateMask[maskndx] = mask;
+ } else {
+ if (!inputMasks)
+ AddExtensionClient(pWin, client, 0, 0);
+ inputMasks = wOtherInputMasks(pWin);
+ inputMasks->dontPropagateMask[maskndx] = mask;
+ }
+ RecalculateDeviceDeliverableEvents(pWin);
+ if (ShouldFreeInputMasks(pWin, FALSE))
+ FreeResource(inputMasks->inputClients->resource, RT_NONE);
+ return Success;
+}
+
+Bool
+ShouldFreeInputMasks(WindowPtr pWin, Bool ignoreSelectedEvents)
+{
+ int i;
+ Mask allInputEventMasks = 0;
+ struct _OtherInputMasks *inputMasks = wOtherInputMasks(pWin);
+
+ for (i = 0; i < EMASKSIZE; i++)
+ allInputEventMasks |= inputMasks->dontPropagateMask[i];
+ if (!ignoreSelectedEvents)
+ for (i = 0; i < EMASKSIZE; i++)
+ allInputEventMasks |= inputMasks->inputEvents[i];
+ if (allInputEventMasks == 0)
+ return TRUE;
+ else
+ return FALSE;
+}
+
+/***********************************************************************
+ *
+ * Walk through the window tree, finding all clients that want to know
+ * about the Event.
+ *
+ */
+
+static void
+FindInterestedChildren(DeviceIntPtr dev, WindowPtr p1, Mask mask,
+ xEvent * ev, int count)
+{
+ WindowPtr p2;
+
+ while (p1) {
+ p2 = p1->firstChild;
+ DeliverEventsToWindow(dev, p1, ev, count, mask, NullGrab);
+ FindInterestedChildren(dev, p2, mask, ev, count);
+ p1 = p1->nextSib;
+ }
+}
+
+/***********************************************************************
+ *
+ * Send an event to interested clients in all windows on all screens.
+ *
+ */
+
+void
+SendEventToAllWindows(DeviceIntPtr dev, Mask mask, xEvent * ev, int count)
+{
+ int i;
+ WindowPtr pWin, p1;
+
+ for (i = 0; i < screenInfo.numScreens; i++) {
+ pWin = screenInfo.screens[i]->root;
+ if (!pWin)
+ continue;
+ DeliverEventsToWindow(dev, pWin, ev, count, mask, NullGrab);
+ p1 = pWin->firstChild;
+ FindInterestedChildren(dev, p1, mask, ev, count);
+ }
+}
+
+/**
+ * Set the XI2 mask for the given client on the given window.
+ * @param dev The device to set the mask for.
+ * @param win The window to set the mask on.
+ * @param client The client setting the mask.
+ * @param len Number of bytes in mask.
+ * @param mask Event mask in the form of (1 << eventtype)
+ */
+int
+XISetEventMask(DeviceIntPtr dev, WindowPtr win, ClientPtr client,
+ unsigned int len, unsigned char* mask)
+{
+ OtherInputMasks *masks;
+ InputClientsPtr others = NULL;
+
+ masks = wOtherInputMasks(win);
+ if (masks)
+ {
+ for (others = wOtherInputMasks(win)->inputClients; others;
+ others = others->next) {
+ if (SameClient(others, client)) {
+ memset(others->xi2mask[dev->id], 0,
+ sizeof(others->xi2mask[dev->id]));
+ break;
+ }
+ }
+ }
+
+ len = min(len, sizeof(others->xi2mask[dev->id]));
+
+ if (len && !others)
+ {
+ if (AddExtensionClient(win, client, 0, 0) != Success)
+ return BadAlloc;
+ others= wOtherInputMasks(win)->inputClients;
+ }
+
+ if (others)
+ memset(others->xi2mask[dev->id], 0, sizeof(others->xi2mask[dev->id]));
+
+ if (len)
+ memcpy(others->xi2mask[dev->id], mask, len);
+
+ RecalculateDeviceDeliverableEvents(win);
+
+ return Success;
+}
contact: Jan Huwald // Impressum