918 lines
27 KiB
C
918 lines
27 KiB
C
/*
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* Copyright © 2006 Nokia Corporation
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* Copyright © 2006-2007 Daniel Stone
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Author: Daniel Stone <daniel@fooishbar.org>
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/keysym.h>
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#define NEED_EVENTS
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#define NEED_REPLIES
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#include <X11/Xproto.h>
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#include "misc.h"
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#include "resource.h"
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#include "inputstr.h"
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#include "scrnintstr.h"
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#include "cursorstr.h"
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#include "dixstruct.h"
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#include "globals.h"
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#include "dixevents.h"
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#include "mipointer.h"
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#ifdef XKB
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#include <X11/extensions/XKBproto.h>
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#include <xkbsrv.h>
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extern Bool XkbCopyKeymap(XkbDescPtr src, XkbDescPtr dst, Bool sendNotifies);
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#endif
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#ifdef PANORAMIX
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#include "panoramiX.h"
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#include "panoramiXsrv.h"
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#endif
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#include <X11/extensions/XI.h>
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#include <X11/extensions/XIproto.h>
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#include "exglobals.h"
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#include "exevents.h"
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#include "exglobals.h"
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#include "extnsionst.h"
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#include "listdev.h" /* for sizing up DeviceClassesChangedEvent */
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/* Maximum number of valuators, divided by six, rounded up, to get number
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* of events. */
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#define MAX_VALUATOR_EVENTS 6
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/* Number of motion history events to store. */
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#define MOTION_HISTORY_SIZE 256
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/* InputEventList is the container list for all input events generated by the
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* DDX. The DDX is expected to call GetEventList() and then pass the list into
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* Get{Pointer|Keyboard}Events.
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*/
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EventListPtr InputEventList = NULL;
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int InputEventListLen = 0;
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_X_EXPORT int
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GetEventList(EventListPtr* list)
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{
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*list = InputEventList;
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return InputEventListLen;
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}
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/**
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* Pick some arbitrary size for Xi motion history.
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*/
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_X_EXPORT int
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GetMotionHistorySize(void)
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{
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return MOTION_HISTORY_SIZE;
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}
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static void
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set_key_down(DeviceIntPtr pDev, int key_code)
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{
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pDev->key->postdown[key_code >> 3] |= (1 << (key_code & 7));
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}
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static void
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set_key_up(DeviceIntPtr pDev, int key_code)
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{
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pDev->key->postdown[key_code >> 3] &= ~(1 << (key_code & 7));
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}
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static Bool
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key_is_down(DeviceIntPtr pDev, int key_code)
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{
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return !!(pDev->key->postdown[key_code >> 3] & (1 << (key_code & 7)));
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}
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static Bool
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key_autorepeats(DeviceIntPtr pDev, int key_code)
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{
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return !!(pDev->kbdfeed->ctrl.autoRepeats[key_code >> 3] &
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(1 << (key_code & 7)));
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}
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void
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CreateClassesChangedEvent(EventList* event,
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DeviceIntPtr master,
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DeviceIntPtr slave)
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{
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deviceClassesChangedEvent *dcce;
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int len = sizeof(xEvent);
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CARD32 ms = GetTimeInMillis();
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int namelen = 0; /* dummy */
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/* XXX: ok, this is a bit weird. We need to alloc enough size for the
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* event so it can be filled in in POE lateron. Reason being that if
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* we realloc the event in POE we can get SIGABRT when we try to free
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* or realloc the original pointer.
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* We can only do it here as we don't have the EventList in the event
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* processing any more.
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*/
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SizeDeviceInfo(slave, &namelen, &len);
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if (event->evlen < len)
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{
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event->event = realloc(event->event, len);
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if (!event->event)
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FatalError("[dix] Cannot allocate memory for "
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"DeviceClassesChangedEvent.\n");
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event->evlen = len;
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}
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dcce = (deviceClassesChangedEvent*)event->event;
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dcce->type = GenericEvent;
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dcce->extension = IReqCode;
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dcce->evtype = XI_DeviceClassesChangedNotify;
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dcce->time = ms;
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dcce->new_slave = slave->id;
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dcce->length = (len - sizeof(xEvent))/4;
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}
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/**
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* Allocate the motion history buffer.
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*/
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_X_EXPORT void
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AllocateMotionHistory(DeviceIntPtr pDev)
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{
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if (pDev->valuator->motion)
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xfree(pDev->valuator->motion);
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if (pDev->valuator->numMotionEvents < 1)
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return;
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pDev->valuator->motion = xalloc(((sizeof(INT32) * pDev->valuator->numAxes) +
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sizeof(Time)) *
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pDev->valuator->numMotionEvents);
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pDev->valuator->first_motion = 0;
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pDev->valuator->last_motion = 0;
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}
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/**
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* Dump the motion history between start and stop into the supplied buffer.
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* Only records the event for a given screen in theory, but in practice, we
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* sort of ignore this.
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*/
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_X_EXPORT int
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GetMotionHistory(DeviceIntPtr pDev, xTimecoord *buff, unsigned long start,
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unsigned long stop, ScreenPtr pScreen)
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{
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char *ibuff = NULL, *obuff = (char *) buff;
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int i = 0, ret = 0;
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Time current;
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/* The size of a single motion event. */
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int size = (sizeof(INT32) * pDev->valuator->numAxes) + sizeof(Time);
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if (!pDev->valuator || !pDev->valuator->numMotionEvents)
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return 0;
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for (i = pDev->valuator->first_motion;
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i != pDev->valuator->last_motion;
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i = (i + 1) % pDev->valuator->numMotionEvents) {
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/* We index the input buffer by which element we're accessing, which
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* is not monotonic, and the output buffer by how many events we've
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* written so far. */
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ibuff = (char *) pDev->valuator->motion + (i * size);
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memcpy(¤t, ibuff, sizeof(Time));
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if (current > stop) {
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return ret;
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}
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else if (current >= start) {
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memcpy(obuff, ibuff, size);
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obuff += size;
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ret++;
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}
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}
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return ret;
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}
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/**
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* Update the motion history for a specific device, with the list of
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* valuators.
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*/
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static void
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updateMotionHistory(DeviceIntPtr pDev, CARD32 ms, int first_valuator,
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int num_valuators, int *valuators)
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{
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char *buff = (char *) pDev->valuator->motion;
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if (!pDev->valuator->numMotionEvents)
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return;
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buff += ((sizeof(INT32) * pDev->valuator->numAxes) + sizeof(CARD32)) *
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pDev->valuator->last_motion;
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memcpy(buff, &ms, sizeof(Time));
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buff += sizeof(Time);
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bzero(buff, sizeof(INT32) * pDev->valuator->numAxes);
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buff += sizeof(INT32) * first_valuator;
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memcpy(buff, valuators, sizeof(INT32) * num_valuators);
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pDev->valuator->last_motion = (pDev->valuator->last_motion + 1) %
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pDev->valuator->numMotionEvents;
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/* If we're wrapping around, just keep the circular buffer going. */
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if (pDev->valuator->first_motion == pDev->valuator->last_motion)
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pDev->valuator->first_motion = (pDev->valuator->first_motion + 1) %
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pDev->valuator->numMotionEvents;
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return;
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}
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/**
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* Returns the maximum number of events GetKeyboardEvents,
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* GetKeyboardValuatorEvents, and GetPointerEvents will ever return.
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*
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* Should be used in DIX as:
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* xEvent *events = xcalloc(sizeof(xEvent), GetMaximumEventsNum());
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*
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* This MUST be absolutely constant, from init until exit.
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*/
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_X_EXPORT int
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GetMaximumEventsNum(void) {
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/* One base event -- device, plus valuator events.
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* Multiply by two if we're doing non-XKB key repeats. */
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int ret = 1 + MAX_VALUATOR_EVENTS;
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#ifdef XKB
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if (noXkbExtension)
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#endif
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ret *= 2;
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return ret;
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}
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/* Originally a part of xf86PostMotionEvent; modifies valuators
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* in-place. */
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static void
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acceleratePointer(DeviceIntPtr pDev, int first_valuator, int num_valuators,
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int *valuators)
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{
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float mult = 0.0;
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int dx = 0, dy = 0;
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int *px = NULL, *py = NULL;
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if (!num_valuators || !valuators)
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return;
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if (first_valuator == 0) {
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dx = valuators[0];
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px = &valuators[0];
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}
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if (first_valuator <= 1 && num_valuators >= (2 - first_valuator)) {
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dy = valuators[1 - first_valuator];
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py = &valuators[1 - first_valuator];
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}
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if (!dx && !dy)
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return;
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if (pDev->ptrfeed && pDev->ptrfeed->ctrl.num) {
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/* modeled from xf86Events.c */
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if (pDev->ptrfeed->ctrl.threshold) {
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if ((abs(dx) + abs(dy)) >= pDev->ptrfeed->ctrl.threshold) {
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pDev->valuator->dxremaind = ((float)dx *
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(float)(pDev->ptrfeed->ctrl.num)) /
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(float)(pDev->ptrfeed->ctrl.den) +
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pDev->valuator->dxremaind;
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if (px) {
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*px = (int)pDev->valuator->dxremaind;
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pDev->valuator->dxremaind = pDev->valuator->dxremaind -
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(float)(*px);
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}
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pDev->valuator->dyremaind = ((float)dy *
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(float)(pDev->ptrfeed->ctrl.num)) /
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(float)(pDev->ptrfeed->ctrl.den) +
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pDev->valuator->dyremaind;
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if (py) {
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*py = (int)pDev->valuator->dyremaind;
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pDev->valuator->dyremaind = pDev->valuator->dyremaind -
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(float)(*py);
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}
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}
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}
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else {
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mult = pow((float)dx * (float)dx + (float)dy * (float)dy,
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((float)(pDev->ptrfeed->ctrl.num) /
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(float)(pDev->ptrfeed->ctrl.den) - 1.0) /
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2.0) / 2.0;
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if (dx) {
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pDev->valuator->dxremaind = mult * (float)dx +
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pDev->valuator->dxremaind;
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*px = (int)pDev->valuator->dxremaind;
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pDev->valuator->dxremaind = pDev->valuator->dxremaind -
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(float)(*px);
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}
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if (dy) {
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pDev->valuator->dyremaind = mult * (float)dy +
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pDev->valuator->dyremaind;
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*py = (int)pDev->valuator->dyremaind;
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pDev->valuator->dyremaind = pDev->valuator->dyremaind -
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(float)(*py);
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}
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}
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}
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}
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/**
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* Clip an axis to its bounds, which are declared in the call to
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* InitValuatorAxisClassStruct.
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*/
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static void
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clipAxis(DeviceIntPtr pDev, int axisNum, int *val)
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{
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AxisInfoPtr axes = pDev->valuator->axes + axisNum;
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/* No clipping if the value-range <= 0 */
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if(axes->min_value < axes->min_value) {
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if (*val < axes->min_value)
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*val = axes->min_value;
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if (*val > axes->max_value)
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*val = axes->max_value;
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}
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}
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/**
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* Clip every axis in the list of valuators to its bounds.
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*/
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static void
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clipValuators(DeviceIntPtr pDev, int first_valuator, int num_valuators,
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int *valuators)
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{
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AxisInfoPtr axes = pDev->valuator->axes + first_valuator;
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int i;
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for (i = 0; i < num_valuators; i++, axes++)
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clipAxis(pDev, i + first_valuator, &(valuators[i]));
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}
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/**
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* Fills events with valuator events for pDev, as given by the other
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* parameters.
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*
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* FIXME: Need to fix ValuatorClassRec to store all the valuators as
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* last posted, not just x and y; otherwise relative non-x/y
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* valuators, though a very narrow use case, will be broken.
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*/
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static EventList *
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getValuatorEvents(EventList *events, DeviceIntPtr pDev, int first_valuator,
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int num_valuators, int *valuators) {
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deviceValuator *xv;
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int i = 0, final_valuator = first_valuator + num_valuators;
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for (i = first_valuator; i < final_valuator; i += 6, events++) {
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xv = (deviceValuator*)events->event;
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xv->type = DeviceValuator;
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xv->first_valuator = i;
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xv->num_valuators = ((final_valuator - i) > 6) ? 6 : (final_valuator - i);
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xv->deviceid = pDev->id;
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switch (final_valuator - i) {
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case 6:
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xv->valuator5 = valuators[i + 5];
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case 5:
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xv->valuator4 = valuators[i + 4];
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case 4:
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xv->valuator3 = valuators[i + 3];
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case 3:
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xv->valuator2 = valuators[i + 2];
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case 2:
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xv->valuator1 = valuators[i + 1];
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case 1:
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xv->valuator0 = valuators[i];
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}
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if (i + 6 < final_valuator)
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xv->deviceid |= MORE_EVENTS;
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}
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return events;
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}
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/**
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* Convenience wrapper around GetKeyboardValuatorEvents, that takes no
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* valuators.
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*/
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_X_EXPORT int
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GetKeyboardEvents(EventList *events, DeviceIntPtr pDev, int type, int key_code) {
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return GetKeyboardValuatorEvents(events, pDev, type, key_code, 0, 0, NULL);
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}
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/**
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* Returns a set of keyboard events for KeyPress/KeyRelease, optionally
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* also with valuator events. Handles Xi and XKB.
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*
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* DOES NOT GENERATE CORE EVENTS! Core events are created when processing the
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* event (ProcessOtherEvent).
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*
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* events is not NULL-terminated; the return value is the number of events.
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* The DDX is responsible for allocating the event structure in the first
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* place via GetMaximumEventsNum(), and for freeing it.
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*
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* This function does not change the core keymap to that of the device;
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* that is done by SwitchCoreKeyboard, which is called from
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* mieqProcessInputEvents. If replacing that function, take care to call
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* SetCoreKeyboard before processInputProc, so keymaps are altered to suit.
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*
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* Note that this function recurses! If called for non-XKB, a repeating
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* key press will trigger a matching KeyRelease, as well as the
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* KeyPresses.
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*/
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_X_EXPORT int
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GetKeyboardValuatorEvents(EventList *events, DeviceIntPtr pDev, int type,
|
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int key_code, int first_valuator,
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int num_valuators, int *valuators) {
|
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int numEvents = 0;
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CARD32 ms = 0;
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KeySym *map = pDev->key->curKeySyms.map;
|
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KeySym sym = map[key_code * pDev->key->curKeySyms.mapWidth];
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deviceKeyButtonPointer *kbp = NULL;
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DeviceIntPtr master;
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if (!events)
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return 0;
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/* DO NOT WANT */
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if (type != KeyPress && type != KeyRelease)
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return 0;
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if (!pDev->key || !pDev->focus || !pDev->kbdfeed ||
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(pDev->coreEvents && !inputInfo.keyboard->key))
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return 0;
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numEvents = 1;
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if (key_code < 8 || key_code > 255)
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return 0;
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master = pDev->u.master;
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if (master && master->u.lastSlave != pDev)
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{
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CreateClassesChangedEvent(events, master, pDev);
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if (master->valuator && pDev->valuator)
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{
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pDev->lastx = master->lastx;
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pDev->lasty = master->lasty;
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}
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master->u.lastSlave = pDev;
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numEvents++;
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events++;
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}
|
|
|
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if (num_valuators) {
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if ((num_valuators / 6) + 1 > MAX_VALUATOR_EVENTS)
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num_valuators = MAX_VALUATOR_EVENTS;
|
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numEvents += (num_valuators / 6) + 1;
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}
|
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|
|
#ifdef XKB
|
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if (noXkbExtension)
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#endif
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|
{
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|
switch (sym) {
|
|
case XK_Num_Lock:
|
|
case XK_Caps_Lock:
|
|
case XK_Scroll_Lock:
|
|
case XK_Shift_Lock:
|
|
if (type == KeyRelease)
|
|
return 0;
|
|
else if (type == KeyPress && key_is_down(pDev, key_code))
|
|
type = KeyRelease;
|
|
}
|
|
}
|
|
|
|
/* Handle core repeating, via press/release/press/release.
|
|
* FIXME: In theory, if you're repeating with two keyboards in non-XKB,
|
|
* you could get unbalanced events here. */
|
|
if (type == KeyPress && key_is_down(pDev, key_code)) {
|
|
/* If autorepeating is disabled either globally or just for that key,
|
|
* or we have a modifier, don't generate a repeat event. */
|
|
if (!pDev->kbdfeed->ctrl.autoRepeat ||
|
|
!key_autorepeats(pDev, key_code) ||
|
|
pDev->key->modifierMap[key_code])
|
|
return 0;
|
|
|
|
#ifdef XKB
|
|
if (noXkbExtension)
|
|
#endif
|
|
{
|
|
numEvents += GetKeyboardValuatorEvents(events, pDev,
|
|
KeyRelease, key_code,
|
|
first_valuator, num_valuators,
|
|
valuators);
|
|
events += numEvents;
|
|
}
|
|
}
|
|
|
|
ms = GetTimeInMillis();
|
|
|
|
kbp = (deviceKeyButtonPointer *) events->event;
|
|
kbp->time = ms;
|
|
kbp->deviceid = pDev->id;
|
|
kbp->detail = key_code;
|
|
if (type == KeyPress) {
|
|
kbp->type = DeviceKeyPress;
|
|
set_key_down(pDev, key_code);
|
|
}
|
|
else if (type == KeyRelease) {
|
|
kbp->type = DeviceKeyRelease;
|
|
set_key_up(pDev, key_code);
|
|
}
|
|
|
|
events++;
|
|
if (num_valuators) {
|
|
kbp->deviceid |= MORE_EVENTS;
|
|
clipValuators(pDev, first_valuator, num_valuators, valuators);
|
|
events = getValuatorEvents(events, pDev, first_valuator,
|
|
num_valuators, valuators);
|
|
}
|
|
|
|
return numEvents;
|
|
}
|
|
|
|
/**
|
|
* Initialize an event list and fill with 32 byte sized events.
|
|
* This event list is to be passed into GetPointerEvents() and
|
|
* GetKeyboardEvents().
|
|
*
|
|
* @param num_events Number of elements in list.
|
|
*/
|
|
_X_EXPORT EventListPtr
|
|
InitEventList(int num_events)
|
|
{
|
|
EventListPtr events;
|
|
int i;
|
|
|
|
events = (EventListPtr)xcalloc(num_events, sizeof(EventList));
|
|
if (!events)
|
|
return NULL;
|
|
|
|
for (i = 0; i < num_events; i++)
|
|
{
|
|
events[i].evlen = sizeof(xEvent);
|
|
events[i].event = xcalloc(1, sizeof(xEvent));
|
|
if (!events[i].event)
|
|
{
|
|
/* rollback */
|
|
while(i--)
|
|
xfree(events[i].event);
|
|
xfree(events);
|
|
events = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return events;
|
|
}
|
|
|
|
/**
|
|
* Allocs min_size memory for each event in the list.
|
|
*/
|
|
_X_EXPORT void
|
|
SetMinimumEventSize(EventListPtr list, int num_events, int min_size)
|
|
{
|
|
if (!list)
|
|
return;
|
|
|
|
while(num_events--)
|
|
{
|
|
if (list[num_events].evlen < min_size)
|
|
{
|
|
list[num_events].evlen = min_size;
|
|
list[num_events].event = realloc(list[num_events].event, min_size);
|
|
if (!list[num_events].event)
|
|
{
|
|
FatalError("[dix] Failed to set event list's "
|
|
"min_size to %d.\n", min_size);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Free an event list.
|
|
*
|
|
* @param list The list to be freed.
|
|
* @param num_events Number of elements in list.
|
|
*/
|
|
_X_EXPORT void
|
|
FreeEventList(EventListPtr list, int num_events)
|
|
{
|
|
if (!list)
|
|
return;
|
|
while(num_events--)
|
|
xfree(list[num_events].event);
|
|
xfree(list);
|
|
}
|
|
|
|
/**
|
|
* Generate a series of xEvents (filled into the EventList) representing
|
|
* pointer motion, or button presses. Xi and XKB-aware.
|
|
*
|
|
* DOES NOT GENERATE CORE EVENTS! Core events are created when processing the
|
|
* event (ProcessOtherEvent).
|
|
*
|
|
* events is not NULL-terminated; the return value is the number of events.
|
|
* The DDX is responsible for allocating the event structure in the first
|
|
* place via InitEventList() and GetMaximumEventsNum(), and for freeing it.
|
|
*
|
|
*/
|
|
_X_EXPORT int
|
|
GetPointerEvents(EventList *events, DeviceIntPtr pDev, int type, int buttons,
|
|
int flags, int first_valuator, int num_valuators,
|
|
int *valuators) {
|
|
int num_events = 0, final_valuator = 0;
|
|
CARD32 ms = 0;
|
|
deviceKeyButtonPointer *kbp = NULL;
|
|
DeviceIntPtr master;
|
|
int x = 0, y = 0;
|
|
|
|
/* Sanity checks. */
|
|
if (type != MotionNotify && type != ButtonPress && type != ButtonRelease)
|
|
return 0;
|
|
|
|
if ((type == ButtonPress || type == ButtonRelease) && !pDev->button)
|
|
return 0;
|
|
|
|
/* FIXME: I guess it should, in theory, be possible to post button events
|
|
* from devices without valuators. */
|
|
if (!pDev->valuator)
|
|
return 0;
|
|
|
|
if (type == MotionNotify && num_valuators <= 0)
|
|
return 0;
|
|
|
|
ms = GetTimeInMillis();
|
|
|
|
num_events = 1;
|
|
|
|
master = pDev->u.master;
|
|
if (master && master->u.lastSlave != pDev)
|
|
{
|
|
CreateClassesChangedEvent(events, master, pDev);
|
|
|
|
pDev->lastx = master->lastx;
|
|
pDev->lasty = master->lasty;
|
|
master->u.lastSlave = pDev;
|
|
|
|
num_events++;
|
|
events++;
|
|
}
|
|
|
|
/* Do we need to send a DeviceValuator event? */
|
|
if (num_valuators) {
|
|
if ((((num_valuators - 1) / 6) + 1) > MAX_VALUATOR_EVENTS)
|
|
num_valuators = MAX_VALUATOR_EVENTS * 6;
|
|
num_events += ((num_valuators - 1) / 6) + 1;
|
|
}
|
|
|
|
final_valuator = num_valuators + first_valuator;
|
|
|
|
/* You fail. */
|
|
if (first_valuator < 0 || final_valuator > pDev->valuator->numAxes)
|
|
return 0;
|
|
|
|
/* Set x and y based on whether this is absolute or relative, and
|
|
* accelerate if we need to. */
|
|
if (flags & POINTER_ABSOLUTE) {
|
|
if (num_valuators >= 1 && first_valuator == 0) {
|
|
x = valuators[0];
|
|
}
|
|
else {
|
|
x = pDev->lastx;
|
|
}
|
|
|
|
if (first_valuator <= 1 && num_valuators >= (2 - first_valuator)) {
|
|
y = valuators[1 - first_valuator];
|
|
}
|
|
else {
|
|
y = pDev->lasty;
|
|
}
|
|
}
|
|
else {
|
|
if (flags & POINTER_ACCELERATE)
|
|
acceleratePointer(pDev, first_valuator, num_valuators,
|
|
valuators);
|
|
|
|
if (first_valuator == 0 && num_valuators >= 1)
|
|
x = pDev->lastx + valuators[0];
|
|
else
|
|
x = pDev->lastx;
|
|
|
|
if (first_valuator <= 1 && num_valuators >= (2 - first_valuator))
|
|
y = pDev->lasty + valuators[1 - first_valuator];
|
|
else
|
|
y = pDev->lasty;
|
|
}
|
|
|
|
/* Clip both x and y to the defined limits (usually co-ord space limit). */
|
|
clipAxis(pDev, 0, &x);
|
|
clipAxis(pDev, 1, &y);
|
|
|
|
/* This takes care of crossing screens for us, as well as clipping
|
|
* to the current screen. Right now, we only have one history buffer,
|
|
* so we don't set this for both the device and core.*/
|
|
miPointerSetPosition(pDev, &x, &y, ms);
|
|
|
|
/* Drop x and y back into the valuators list, if they were originally
|
|
* present. */
|
|
if (first_valuator == 0 && num_valuators >= 1)
|
|
valuators[0] = x;
|
|
if (first_valuator <= 1 && num_valuators >= (2 - first_valuator))
|
|
valuators[1 - first_valuator] = y;
|
|
|
|
updateMotionHistory(pDev, ms, first_valuator, num_valuators, valuators);
|
|
|
|
pDev->lastx = x;
|
|
pDev->lasty = y;
|
|
if (master)
|
|
{
|
|
master->lastx = x;
|
|
master->lasty = y;
|
|
}
|
|
|
|
kbp = (deviceKeyButtonPointer *) events->event;
|
|
kbp->time = ms;
|
|
kbp->deviceid = pDev->id;
|
|
|
|
if (type == MotionNotify) {
|
|
kbp->type = DeviceMotionNotify;
|
|
}
|
|
else {
|
|
if (type == ButtonPress)
|
|
kbp->type = DeviceButtonPress;
|
|
else if (type == ButtonRelease)
|
|
kbp->type = DeviceButtonRelease;
|
|
kbp->detail = pDev->button->map[buttons];
|
|
}
|
|
|
|
kbp->root_x = x;
|
|
kbp->root_y = y;
|
|
|
|
events++;
|
|
if (num_valuators) {
|
|
kbp->deviceid |= MORE_EVENTS;
|
|
clipValuators(pDev, first_valuator, num_valuators, valuators);
|
|
events = getValuatorEvents(events, pDev, first_valuator,
|
|
num_valuators, valuators);
|
|
}
|
|
|
|
return num_events;
|
|
}
|
|
|
|
|
|
/**
|
|
* Post ProximityIn/ProximityOut events, accompanied by valuators.
|
|
*
|
|
* events is not NULL-terminated; the return value is the number of events.
|
|
* The DDX is responsible for allocating the event structure in the first
|
|
* place via GetMaximumEventsNum(), and for freeing it.
|
|
*/
|
|
_X_EXPORT int
|
|
GetProximityEvents(EventList *events, DeviceIntPtr pDev, int type,
|
|
int first_valuator, int num_valuators, int *valuators)
|
|
{
|
|
int num_events = 1;
|
|
deviceKeyButtonPointer *kbp;
|
|
DeviceIntPtr master;
|
|
|
|
/* Sanity checks. */
|
|
if (type != ProximityIn && type != ProximityOut)
|
|
return 0;
|
|
|
|
if (!pDev->valuator)
|
|
return 0;
|
|
|
|
/* Do we need to send a DeviceValuator event? */
|
|
if ((pDev->valuator->mode & 1) == Relative)
|
|
num_valuators = 0;
|
|
|
|
if (num_valuators) {
|
|
if ((((num_valuators - 1) / 6) + 1) > MAX_VALUATOR_EVENTS)
|
|
num_valuators = MAX_VALUATOR_EVENTS * 6;
|
|
num_events += ((num_valuators - 1) / 6) + 1;
|
|
}
|
|
|
|
/* You fail. */
|
|
if (first_valuator < 0 ||
|
|
(num_valuators + first_valuator) > pDev->valuator->numAxes)
|
|
return 0;
|
|
|
|
master = pDev->u.master;
|
|
if (master && master->u.lastSlave != pDev)
|
|
{
|
|
CreateClassesChangedEvent(events, master, pDev);
|
|
|
|
pDev->lastx = master->lastx;
|
|
pDev->lasty = master->lasty;
|
|
master->u.lastSlave = pDev;
|
|
|
|
num_events++;
|
|
events++;
|
|
}
|
|
|
|
kbp = (deviceKeyButtonPointer *) events->event;
|
|
kbp->type = type;
|
|
kbp->deviceid = pDev->id;
|
|
kbp->detail = 0;
|
|
kbp->time = GetTimeInMillis();
|
|
|
|
if (num_valuators) {
|
|
kbp->deviceid |= MORE_EVENTS;
|
|
events++;
|
|
clipValuators(pDev, first_valuator, num_valuators, valuators);
|
|
events = getValuatorEvents(events, pDev, first_valuator,
|
|
num_valuators, valuators);
|
|
}
|
|
|
|
return num_events;
|
|
}
|
|
|
|
/**
|
|
* Note that pDev was the last function to send a core pointer event.
|
|
* Currently a no-op.
|
|
*
|
|
* Call this just before processInputProc.
|
|
*/
|
|
_X_EXPORT void
|
|
SwitchCorePointer(DeviceIntPtr pDev)
|
|
{
|
|
if (pDev != dixLookupPrivate(&inputInfo.pointer->devPrivates,
|
|
CoreDevicePrivateKey))
|
|
dixSetPrivate(&inputInfo.pointer->devPrivates,
|
|
CoreDevicePrivateKey, pDev);
|
|
}
|
|
|
|
|
|
/**
|
|
* Synthesize a single motion event for the core pointer.
|
|
*
|
|
* Used in cursor functions, e.g. when cursor confinement changes, and we need
|
|
* to shift the pointer to get it inside the new bounds.
|
|
*/
|
|
void
|
|
PostSyntheticMotion(DeviceIntPtr pDev,
|
|
int x,
|
|
int y,
|
|
int screen,
|
|
unsigned long time)
|
|
{
|
|
xEvent xE;
|
|
|
|
#ifdef PANORAMIX
|
|
/* Translate back to the sprite screen since processInputProc
|
|
will translate from sprite screen to screen 0 upon reentry
|
|
to the DIX layer. */
|
|
if (!noPanoramiXExtension) {
|
|
x += panoramiXdataPtr[0].x - panoramiXdataPtr[screen].x;
|
|
y += panoramiXdataPtr[0].y - panoramiXdataPtr[screen].y;
|
|
}
|
|
#endif
|
|
|
|
memset(&xE, 0, sizeof(xEvent));
|
|
xE.u.u.type = MotionNotify;
|
|
xE.u.keyButtonPointer.rootX = x;
|
|
xE.u.keyButtonPointer.rootY = y;
|
|
xE.u.keyButtonPointer.time = time;
|
|
|
|
(*pDev->public.processInputProc)(&xE, pDev, 1);
|
|
}
|