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xserver/hw/xquartz/darwinEvents.c

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/*
* Darwin event queue and event handling
*
* Copyright 2007-2008 Apple Inc.
* Copyright 2004 Kaleb S. KEITHLEY. All Rights Reserved.
* Copyright (c) 2002-2004 Torrey T. Lyons. All Rights Reserved.
*
* This file is based on mieq.c by Keith Packard,
* which contains the following copyright:
* Copyright 1990, 1998 The Open Group
*
*
* Copyright (c) 2002-2012 Apple Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* 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 ABOVE LISTED COPYRIGHT
* HOLDER(S) 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(s) of the above
* copyright holders shall not be used in advertising or otherwise to
* promote the sale, use or other dealings in this Software without
* prior written authorization.
*/
#include "sanitizedCarbon.h"
#include <dix-config.h>
#include <X11/X.h>
#include <X11/Xmd.h>
#include <X11/Xproto.h>
#include "misc.h"
#include "windowstr.h"
#include "pixmapstr.h"
#include "inputstr.h"
#include "inpututils.h"
#include "eventstr.h"
#include "mi.h"
#include "scrnintstr.h"
#include "mipointer.h"
#include "os.h"
#include "exglobals.h"
#include "darwin.h"
#include "quartz.h"
#include "quartzKeyboard.h"
#include "quartzRandR.h"
#include "darwinEvents.h"
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
#include <pthread.h>
#include <errno.h>
#include <time.h>
#include <IOKit/hidsystem/IOLLEvent.h>
#include <X11/extensions/applewmconst.h>
#include "applewmExt.h"
/* FIXME: Abstract this better */
extern Bool
QuartzModeEventHandler(int screenNum, XQuartzEvent *e, DeviceIntPtr dev);
int darwin_all_modifier_flags = 0; // last known modifier state
int darwin_all_modifier_mask = 0;
int darwin_x11_modifier_mask = 0;
#define FD_ADD_MAX 128
static int fd_add[FD_ADD_MAX];
int fd_add_count = 0;
static pthread_mutex_t fd_add_lock = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t fd_add_ready_cond = PTHREAD_COND_INITIALIZER;
static pthread_t fd_add_tid = NULL;
static BOOL mieqInitialized;
static pthread_mutex_t mieqInitializedMutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t mieqInitializedCond = PTHREAD_COND_INITIALIZER;
_X_NOTSAN
extern inline void
wait_for_mieq_init(void)
{
if (!mieqInitialized) {
pthread_mutex_lock(&mieqInitializedMutex);
while (!mieqInitialized) {
pthread_cond_wait(&mieqInitializedCond, &mieqInitializedMutex);
}
pthread_mutex_unlock(&mieqInitializedMutex);
}
}
_X_NOTSAN
static inline void
signal_mieq_init(void)
{
pthread_mutex_lock(&mieqInitializedMutex);
mieqInitialized = TRUE;
pthread_cond_broadcast(&mieqInitializedCond);
pthread_mutex_unlock(&mieqInitializedMutex);
}
/*** Pthread Magics ***/
static pthread_t
create_thread(void *(*func)(void *), void *arg)
{
pthread_attr_t attr;
pthread_t tid;
pthread_attr_init(&attr);
pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
pthread_create(&tid, &attr, func, arg);
pthread_attr_destroy(&attr);
return tid;
}
/*
* DarwinPressModifierKey
* Press or release the given modifier key (one of NX_MODIFIERKEY_* constants)
*/
static void
DarwinPressModifierKey(int pressed, int key)
{
int keycode = DarwinModifierNXKeyToNXKeycode(key, 0);
if (keycode == 0) {
ErrorF("DarwinPressModifierKey bad keycode: key=%d\n", key);
return;
}
DarwinSendKeyboardEvents(pressed, keycode);
}
/*
* DarwinUpdateModifiers
* Send events to update the modifier state.
*/
static int darwin_x11_modifier_mask_list[] = {
#ifdef NX_DEVICELCMDKEYMASK
NX_DEVICELCTLKEYMASK, NX_DEVICERCTLKEYMASK,
NX_DEVICELSHIFTKEYMASK, NX_DEVICERSHIFTKEYMASK,
NX_DEVICELCMDKEYMASK, NX_DEVICERCMDKEYMASK,
NX_DEVICELALTKEYMASK, NX_DEVICERALTKEYMASK,
#else
NX_CONTROLMASK, NX_SHIFTMASK, NX_COMMANDMASK,
NX_ALTERNATEMASK,
#endif
NX_ALPHASHIFTMASK,
0
};
static int darwin_all_modifier_mask_additions[] = { NX_SECONDARYFNMASK, 0 };
static void
DarwinUpdateModifiers(int pressed, // KeyPress or KeyRelease
int flags) // modifier flags that have changed
{
int *f;
int key;
/* Capslock is special. This mask is the state of capslock (on/off),
* not the state of the button. Hopefully we can find a better solution.
*/
if (NX_ALPHASHIFTMASK & flags) {
DarwinPressModifierKey(KeyPress, NX_MODIFIERKEY_ALPHALOCK);
DarwinPressModifierKey(KeyRelease, NX_MODIFIERKEY_ALPHALOCK);
}
for (f = darwin_x11_modifier_mask_list; *f; f++)
if (*f & flags && *f != NX_ALPHASHIFTMASK) {
key = DarwinModifierNXMaskToNXKey(*f);
if (key == -1)
ErrorF("DarwinUpdateModifiers: Unsupported NXMask: 0x%x\n",
*f);
else
DarwinPressModifierKey(pressed, key);
}
}
/* Generic handler for Xquartz-specifc events. When possible, these should
be moved into their own individual functions and set as handlers using
mieqSetHandler. */
static void
DarwinEventHandler(int screenNum, InternalEvent *ie, DeviceIntPtr dev)
{
XQuartzEvent *e = &(ie->xquartz_event);
switch (e->subtype) {
case kXquartzControllerNotify:
DEBUG_LOG("kXquartzControllerNotify\n");
AppleWMSendEvent(AppleWMControllerNotify,
AppleWMControllerNotifyMask,
e->data[0],
e->data[1]);
break;
case kXquartzPasteboardNotify:
DEBUG_LOG("kXquartzPasteboardNotify\n");
AppleWMSendEvent(AppleWMPasteboardNotify,
AppleWMPasteboardNotifyMask,
e->data[0],
e->data[1]);
break;
case kXquartzActivate:
DEBUG_LOG("kXquartzActivate\n");
QuartzShow();
AppleWMSendEvent(AppleWMActivationNotify,
AppleWMActivationNotifyMask,
AppleWMIsActive, 0);
break;
case kXquartzDeactivate:
DEBUG_LOG("kXquartzDeactivate\n");
AppleWMSendEvent(AppleWMActivationNotify,
AppleWMActivationNotifyMask,
AppleWMIsInactive, 0);
QuartzHide();
break;
case kXquartzReloadPreferences:
DEBUG_LOG("kXquartzReloadPreferences\n");
AppleWMSendEvent(AppleWMActivationNotify,
AppleWMActivationNotifyMask,
AppleWMReloadPreferences, 0);
break;
case kXquartzToggleFullscreen:
DEBUG_LOG("kXquartzToggleFullscreen\n");
if (XQuartzIsRootless)
ErrorF(
"Ignoring kXquartzToggleFullscreen because of rootless mode.");
else
QuartzRandRToggleFullscreen();
break;
case kXquartzSetRootless:
DEBUG_LOG("kXquartzSetRootless\n");
if (e->data[0]) {
QuartzRandRSetFakeRootless();
}
else {
QuartzRandRSetFakeFullscreen(FALSE);
}
break;
case kXquartzSetRootClip:
QuartzSetRootClip(e->data[0]);
break;
case kXquartzQuit:
GiveUp(0);
break;
case kXquartzSpaceChanged:
DEBUG_LOG("kXquartzSpaceChanged\n");
QuartzSpaceChanged(e->data[0]);
break;
case kXquartzListenOnOpenFD:
ErrorF("Calling ListenOnOpenFD() for new fd: %d\n", (int)e->data[0]);
ListenOnOpenFD((int)e->data[0], 1);
break;
case kXquartzReloadKeymap:
DarwinKeyboardReloadHandler();
break;
case kXquartzDisplayChanged:
DEBUG_LOG("kXquartzDisplayChanged\n");
QuartzUpdateScreens();
/* Update our RandR info */
QuartzRandRUpdateFakeModes(TRUE);
break;
default:
if (!QuartzModeEventHandler(screenNum, e, dev))
ErrorF("Unknown application defined event type %d.\n", e->subtype);
}
}
void
DarwinListenOnOpenFD(int fd)
{
ErrorF("DarwinListenOnOpenFD: %d\n", fd);
pthread_mutex_lock(&fd_add_lock);
if (fd_add_count < FD_ADD_MAX)
fd_add[fd_add_count++] = fd;
else
ErrorF("FD Addition buffer at max. Dropping fd addition request.\n");
pthread_cond_broadcast(&fd_add_ready_cond);
pthread_mutex_unlock(&fd_add_lock);
}
static void *
DarwinProcessFDAdditionQueue_thread(void *args)
{
/* TODO: Possibly adjust this to no longer be a race... maybe trigger this
* once a client connects and claims to be the WM.
*
* From ajax:
* There's already an internal callback chain for setting selection [in 1.5]
* ownership. See the CallSelectionCallback at the bottom of
* ProcSetSelectionOwner, and xfixes/select.c for an example of how to hook
* into it.
*/
struct timespec sleep_for;
struct timespec sleep_remaining;
sleep_for.tv_sec = 3;
sleep_for.tv_nsec = 0;
ErrorF(
"X11.app: DarwinProcessFDAdditionQueue_thread: Sleeping to allow xinitrc to catchup.\n");
while (nanosleep(&sleep_for, &sleep_remaining) != 0) {
sleep_for = sleep_remaining;
}
pthread_mutex_lock(&fd_add_lock);
while (true) {
while (fd_add_count) {
DarwinSendDDXEvent(kXquartzListenOnOpenFD, 1,
fd_add[--fd_add_count]);
}
pthread_cond_wait(&fd_add_ready_cond, &fd_add_lock);
}
return NULL;
}
Bool
DarwinEQInit(void)
{
int *p;
for (p = darwin_x11_modifier_mask_list; *p; p++) {
darwin_x11_modifier_mask |= *p;
}
darwin_all_modifier_mask = darwin_x11_modifier_mask;
for (p = darwin_all_modifier_mask_additions; *p; p++) {
darwin_all_modifier_mask |= *p;
}
mieqInit();
mieqSetHandler(ET_XQuartz, DarwinEventHandler);
if (!fd_add_tid)
fd_add_tid = create_thread(DarwinProcessFDAdditionQueue_thread, NULL);
signal_mieq_init();
return TRUE;
}
void
DarwinEQFini(void)
{
mieqFini();
}
/*
* ProcessInputEvents
* Read and process events from the event queue until it is empty.
*/
void
ProcessInputEvents(void)
{
char nullbyte;
int x = sizeof(nullbyte);
mieqProcessInputEvents();
// Empty the signaling pipe
while (x == sizeof(nullbyte)) {
x = read(darwinEventReadFD, &nullbyte, sizeof(nullbyte));
}
}
/* Sends a null byte down darwinEventWriteFD, which will cause the
Dispatch() event loop to check out event queue */
static void
DarwinPokeEQ(void)
{
char nullbyte = 0;
// <daniels> oh, i ... er ... christ.
write(darwinEventWriteFD, &nullbyte, sizeof(nullbyte));
}
void
DarwinInputReleaseButtonsAndKeys(DeviceIntPtr pDev)
{
input_lock();
{
int i;
if (pDev->button) {
for (i = 0; i < pDev->button->numButtons; i++) {
if (BitIsOn(pDev->button->down, i)) {
QueuePointerEvents(pDev, ButtonRelease, i,
POINTER_ABSOLUTE,
NULL);
}
}
}
if (pDev->key) {
for (i = 0; i < NUM_KEYCODES; i++) {
if (BitIsOn(pDev->key->down, i + MIN_KEYCODE)) {
QueueKeyboardEvents(pDev, KeyRelease, i + MIN_KEYCODE);
}
}
}
DarwinPokeEQ();
} input_unlock();
}
void
DarwinSendTabletEvents(DeviceIntPtr pDev, int ev_type, int ev_button,
double pointer_x, double pointer_y,
double pressure, double tilt_x,
double tilt_y)
{
ScreenPtr screen;
ValuatorMask valuators;
screen = miPointerGetScreen(pDev);
if (!screen) {
DEBUG_LOG("%s called before screen was initialized\n",
__FUNCTION__);
return;
}
/* Fix offset between darwin and X screens */
pointer_x -= darwinMainScreenX + screen->x;
pointer_y -= darwinMainScreenY + screen->y;
/* Adjust our pointer location to the [0,1] range */
pointer_x = pointer_x / (double)screenInfo.width;
pointer_y = pointer_y / (double)screenInfo.height;
valuator_mask_zero(&valuators);
valuator_mask_set_double(&valuators, 0, XQUARTZ_VALUATOR_LIMIT * pointer_x);
valuator_mask_set_double(&valuators, 1, XQUARTZ_VALUATOR_LIMIT * pointer_y);
valuator_mask_set_double(&valuators, 2, XQUARTZ_VALUATOR_LIMIT * pressure);
valuator_mask_set_double(&valuators, 3, XQUARTZ_VALUATOR_LIMIT * tilt_x);
valuator_mask_set_double(&valuators, 4, XQUARTZ_VALUATOR_LIMIT * tilt_y);
input_lock();
{
if (ev_type == ProximityIn || ev_type == ProximityOut) {
QueueProximityEvents(pDev, ev_type, &valuators);
} else {
QueuePointerEvents(pDev, ev_type, ev_button, POINTER_ABSOLUTE,
&valuators);
}
DarwinPokeEQ();
} input_unlock();
}
void
DarwinSendPointerEvents(DeviceIntPtr pDev, int ev_type, int ev_button,
double pointer_x, double pointer_y,
double pointer_dx, double pointer_dy)
{
static int darwinFakeMouseButtonDown = 0;
ScreenPtr screen;
ValuatorMask valuators;
screen = miPointerGetScreen(pDev);
if (!screen) {
DEBUG_LOG("%s called before screen was initialized\n",
__FUNCTION__);
return;
}
/* Handle fake click */
if (ev_type == ButtonPress && darwinFakeButtons && ev_button == 1) {
if (darwinFakeMouseButtonDown != 0) {
/* We're currently "down" with another button, so release it first */
DarwinSendPointerEvents(pDev, ButtonRelease,
darwinFakeMouseButtonDown,
pointer_x, pointer_y, 0.0, 0.0);
darwinFakeMouseButtonDown = 0;
}
if (darwin_all_modifier_flags & darwinFakeMouse2Mask) {
ev_button = 2;
darwinFakeMouseButtonDown = 2;
DarwinUpdateModKeys(
darwin_all_modifier_flags & ~darwinFakeMouse2Mask);
}
else if (darwin_all_modifier_flags & darwinFakeMouse3Mask) {
ev_button = 3;
darwinFakeMouseButtonDown = 3;
DarwinUpdateModKeys(
darwin_all_modifier_flags & ~darwinFakeMouse3Mask);
}
}
if (ev_type == ButtonRelease && ev_button == 1) {
if (darwinFakeMouseButtonDown) {
ev_button = darwinFakeMouseButtonDown;
}
if (darwinFakeMouseButtonDown == 2) {
DarwinUpdateModKeys(
darwin_all_modifier_flags & ~darwinFakeMouse2Mask);
}
else if (darwinFakeMouseButtonDown == 3) {
DarwinUpdateModKeys(
darwin_all_modifier_flags & ~darwinFakeMouse3Mask);
}
darwinFakeMouseButtonDown = 0;
}
/* Fix offset between darwin and X screens */
pointer_x -= darwinMainScreenX + screen->x;
pointer_y -= darwinMainScreenY + screen->y;
valuator_mask_zero(&valuators);
valuator_mask_set_double(&valuators, 0, pointer_x);
valuator_mask_set_double(&valuators, 1, pointer_y);
if (ev_type == MotionNotify) {
if (pointer_dx != 0.0)
valuator_mask_set_double(&valuators, 2, pointer_dx);
if (pointer_dy != 0.0)
valuator_mask_set_double(&valuators, 3, pointer_dy);
}
input_lock();
{
QueuePointerEvents(pDev, ev_type, ev_button, POINTER_ABSOLUTE,
&valuators);
DarwinPokeEQ();
} input_unlock();
}
void
DarwinSendKeyboardEvents(int ev_type, int keycode)
{
input_lock();
{
QueueKeyboardEvents(darwinKeyboard, ev_type, keycode + MIN_KEYCODE);
DarwinPokeEQ();
} input_unlock();
}
/* Send the appropriate number of button clicks to emulate scroll wheel */
void
DarwinSendScrollEvents(double scroll_x, double scroll_y) {
ScreenPtr screen;
ValuatorMask valuators;
screen = miPointerGetScreen(darwinPointer);
if (!screen) {
DEBUG_LOG(
"DarwinSendScrollEvents called before screen was initialized\n");
return;
}
valuator_mask_zero(&valuators);
valuator_mask_set_double(&valuators, 4, scroll_y);
valuator_mask_set_double(&valuators, 5, scroll_x);
input_lock();
{
QueuePointerEvents(darwinPointer, MotionNotify, 0,
POINTER_RELATIVE, &valuators);
DarwinPokeEQ();
} input_unlock();
}
/* Send the appropriate KeyPress/KeyRelease events to GetKeyboardEvents to
reflect changing modifier flags (alt, control, meta, etc) */
void
DarwinUpdateModKeys(int flags)
{
DarwinUpdateModifiers(
KeyRelease, darwin_all_modifier_flags & ~flags &
darwin_x11_modifier_mask);
DarwinUpdateModifiers(
KeyPress, ~darwin_all_modifier_flags & flags &
darwin_x11_modifier_mask);
darwin_all_modifier_flags = flags;
}
/*
* DarwinSendDDXEvent
* Send the X server thread a message by placing it on the event queue.
*/
void
DarwinSendDDXEvent(int type, int argc, ...)
{
XQuartzEvent e;
int i;
va_list args;
memset(&e, 0, sizeof(e));
e.header = ET_Internal;
e.type = ET_XQuartz;
e.length = sizeof(e);
e.time = GetTimeInMillis();
e.subtype = type;
if (argc > 0 && argc < XQUARTZ_EVENT_MAXARGS) {
va_start(args, argc);
for (i = 0; i < argc; i++)
e.data[i] = (uint32_t)va_arg(args, uint32_t);
va_end(args);
}
wait_for_mieq_init();
input_lock();
{
mieqEnqueue(NULL, (InternalEvent *)&e);
DarwinPokeEQ();
} input_unlock();
}
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