Xi: add GrabButton and GrabKeysym code.

We don't do keycode grabs in XI2, they're pointless.

Xi/Makefile.am

@@ -96,6 +96,8 @@ libXi_la_SOURCES =	\
 	xiallowev.h \
 	xigrabdev.c \
 	xigrabdev.h \
+	xipassivegrab.h \
+	xipassivegrab.c \
 	xiproperty.c \
 	xiproperty.h \
 	xiselectev.c \

Xi/exevents.c

@@ -1388,7 +1388,7 @@ GrabButton(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr modifier_device,
     WindowPtr pWin, confineTo;
     CursorPtr cursor;
     GrabPtr grab;
-    int rc;
+    int rc, type;
     Mask access_mode = DixGrabAccess;
 
     rc = CheckGrabValues(client, param);
@@ -1422,14 +1422,22 @@ GrabButton(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr modifier_device,
     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, DeviceButtonPress, button, confineTo, cursor);
+                      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)
@@ -1438,19 +1446,25 @@ GrabKey(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr modifier_device,
     GrabPtr grab;
     KeyClassPtr k = dev->key;
     Mask access_mode = DixGrabAccess;
-    int rc;
+    int rc, type;
 
     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;
@@ -1461,7 +1475,7 @@ GrabKey(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr modifier_device,
 	return rc;
 
     grab = CreateGrab(client->index, dev, modifier_device, pWin, grabtype,
-                      mask, param, DeviceKeyPress, key, NULL, NULL);
+                      mask, param, type, key, NULL, NULL);
     if (!grab)
 	return BadAlloc;
     return AddPassiveGrabToList(client, grab);

Xi/extinit.c

@@ -122,6 +122,7 @@ SOFTWARE.
 #include "xiallowev.h"
 #include "xiselectev.h"
 #include "xigrabdev.h"
+#include "xipassivegrab.h"
 #include "xisetdevfocus.h"
 #include "xiproperty.h"
 
@@ -247,7 +248,9 @@ static int (*ProcIVector[])(ClientPtr) = {
         ProcXIGetDeviceFocus,                   /* 50 */
         ProcXIGrabDevice,                       /* 51 */
         ProcXIUngrabDevice,                     /* 52 */
-        ProcXIAllowEvents                       /* 53 */
+        ProcXIAllowEvents,                      /* 53 */
+        ProcXIPassiveGrabDevice,                /* 54 */
+        ProcXIPassiveUngrabDevice               /* 55 */
 };
 
 /* For swapped clients */
@@ -305,7 +308,9 @@ static int (*SProcIVector[])(ClientPtr) = {
         SProcXIGetDeviceFocus,                   /* 50 */
         SProcXIGrabDevice,                       /* 51 */
         SProcXIUngrabDevice,                     /* 52 */
-        SProcXIAllowEvents                       /* 53 */
+        SProcXIAllowEvents,                      /* 53 */
+        SProcXIPassiveGrabDevice,                /* 54 */
+        SProcXIPassiveUngrabDevice               /* 55 */
 };
 
 /*****************************************************************
@@ -498,6 +503,8 @@ SReplyIDispatch(ClientPtr client, int len, xGrabDeviceReply * rep)
         SRepXIQueryDevice(client, len, (xXIQueryDeviceReply*)rep);
     else if (rep->RepType == X_XIGrabDevice)
 	SRepXIGrabDevice(client, len, (xXIGrabDeviceReply *) rep);
+    else if (rep->RepType == X_XIGrabDevice)
+	SRepXIPassiveGrabDevice(client, len, (xXIPassiveGrabDeviceReply *) rep);
     else {
 	FatalError("XINPUT confused sending swapped reply");
     }

Xi/xipassivegrab.c

@@ -0,0 +1,269 @@
+/*
+ * Copyright © 2009 Red Hat, Inc.
+ *
+ * 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 (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Author: Peter Hutterer
+ */
+
+/***********************************************************************
+ *
+ * Request to grab or ungrab input device.
+ *
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "inputstr.h"	/* DeviceIntPtr      */
+#include "windowstr.h"	/* window structure  */
+#include <X11/extensions/XI2.h>
+#include <X11/extensions/XI2proto.h>
+#include "swaprep.h"
+
+#include "exglobals.h" /* BadDevice */
+#include "exevents.h"
+#include "xipassivegrab.h"
+#include "dixgrabs.h"
+
+int
+SProcXIPassiveGrabDevice(ClientPtr client)
+{
+    int i;
+    char n;
+    xXIModifierInfo *mods;
+
+    REQUEST(xXIPassiveGrabDeviceReq);
+
+    swaps(&stuff->length, n);
+    swaps(&stuff->deviceid, n);
+    swapl(&stuff->grab_window, n);
+    swapl(&stuff->cursor, n);
+    swapl(&stuff->time, n);
+    swapl(&stuff->detail, n);
+    swaps(&stuff->mask_len, n);
+    swaps(&stuff->num_modifiers, n);
+
+    mods = (xXIModifierInfo*)&stuff[1];
+
+    for (i = 0; i < stuff->num_modifiers; i++, mods++)
+    {
+        swapl(&mods->base_mods, n);
+        swapl(&mods->latched_mods, n);
+        swapl(&mods->locked_mods, n);
+    }
+
+    return ProcXIPassiveGrabDevice(client);
+}
+
+int
+ProcXIPassiveGrabDevice(ClientPtr client)
+{
+    DeviceIntPtr dev, mod_dev;
+    xXIPassiveGrabDeviceReply rep;
+    int i, ret = Success;
+    uint8_t status;
+    uint32_t *modifiers;
+    xXIGrabModifierInfo *modifiers_failed;
+    GrabMask mask;
+    GrabParameters param;
+
+    REQUEST(xXIPassiveGrabDeviceReq);
+    REQUEST_AT_LEAST_SIZE(xXIPassiveGrabDeviceReq);
+
+    ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
+    if (ret != Success)
+	return ret;
+
+    if (stuff->grab_type != GrabtypeButton &&
+        stuff->grab_type != GrabtypeKeysym)
+    {
+        client->errorValue = stuff->grab_type;
+        return BadValue;
+    }
+
+    /* Can't grab for modifiers on an attached slave device */
+    if (!dev->isMaster)
+    {
+        if (!dev->u.master)
+            stuff->paired_device_mode = GrabModeAsync;
+        else if (dev->u.master && stuff->num_modifiers)
+            return BadDevice;
+    }
+    if ((stuff->mask_len * 4) > XI_LASTEVENT)
+    {
+        unsigned char *bits = (unsigned char*)&stuff[1];
+        for (i = XI_LASTEVENT; i < stuff->mask_len * 4; i++)
+        {
+            if (BitIsOn(bits, i))
+                return BadValue;
+        }
+    }
+
+    memset(mask.xi2mask, 0, sizeof(mask.xi2mask));
+    memcpy(mask.xi2mask[stuff->deviceid], &stuff[1], stuff->mask_len * 4);
+
+    rep.repType = X_Reply;
+    rep.RepType = X_XIPassiveGrabDevice;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    rep.num_modifiers = 0;
+
+    memset(&param, 0, sizeof(param));
+    param.ownerEvents = stuff->owner_events;
+    param.this_device_mode = stuff->grab_mode;
+    param.other_devices_mode = stuff->paired_device_mode;
+    param.grabWindow = stuff->grab_window;
+    param.cursor = stuff->cursor;
+
+    modifiers = (uint32_t*)&stuff[1] + stuff->mask_len;
+    modifiers_failed = xcalloc(stuff->num_modifiers, sizeof(xXIGrabModifierInfo));
+    if (!modifiers_failed)
+        return BadAlloc;
+
+    if (dev->isMaster)
+        mod_dev = GetPairedDevice(dev);
+    else
+        mod_dev = dev;
+
+    for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
+    {
+        param.modifiers = *modifiers;
+        switch(stuff->grab_type)
+        {
+            case GrabtypeButton:
+                status = GrabButton(client, dev, mod_dev, stuff->detail,
+                                    &param, GRABTYPE_XI2, &mask);
+                break;
+            case GrabtypeKeysym:
+                status = GrabKey(client, dev, mod_dev, stuff->detail,
+                                 &param, GRABTYPE_XI2, &mask);
+                break;
+        }
+
+        if (status != GrabSuccess)
+        {
+            xXIGrabModifierInfo *info = modifiers_failed + rep.num_modifiers;
+
+            info->status = status;
+            info->modifiers = *modifiers;
+            rep.num_modifiers++;
+        }
+    }
+
+    WriteReplyToClient(client, sizeof(rep), &rep);
+    if (rep.num_modifiers)
+    {
+	client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
+        WriteSwappedDataToClient(client, rep.num_modifiers * 4, (char*)modifiers_failed);
+    }
+    xfree(modifiers_failed);
+    return ret;
+}
+
+void
+SRepXIPassiveGrabDevice(ClientPtr client, int size,
+                        xXIPassiveGrabDeviceReply * rep)
+{
+    char n;
+
+    swaps(&rep->sequenceNumber, n);
+    swapl(&rep->length, n);
+    swaps(&rep->num_modifiers, n);
+
+    WriteToClient(client, size, (char *)rep);
+}
+
+int
+SProcXIPassiveUngrabDevice(ClientPtr client)
+{
+    char n;
+    int i;
+    uint32_t *modifiers;
+
+    REQUEST(xXIPassiveUngrabDeviceReq);
+
+    swaps(&stuff->length, n);
+    swapl(&stuff->grab_window, n);
+    swaps(&stuff->deviceid, n);
+    swapl(&stuff->detail, n);
+    swaps(&stuff->num_modifiers, n);
+
+    modifiers = (uint32_t*)&stuff[1];
+
+    for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
+        swapl(modifiers, n);
+
+    return ProcXIPassiveUngrabDevice(client);
+}
+
+int
+ProcXIPassiveUngrabDevice(ClientPtr client)
+{
+    DeviceIntPtr dev, mod_dev;
+    WindowPtr win;
+    GrabRec tempGrab;
+    uint32_t* modifiers;
+    int i, rc;
+
+    REQUEST(xXIPassiveUngrabDeviceReq);
+    REQUEST_AT_LEAST_SIZE(xXIPassiveUngrabDeviceReq);
+
+    rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
+    if (rc != Success)
+	return rc;
+
+    if (stuff->grab_type != GrabtypeButton &&
+        stuff->grab_type != GrabtypeKeysym)
+    {
+        client->errorValue = stuff->grab_type;
+        return BadValue;
+    }
+
+    rc = dixLookupWindow(&win, stuff->grab_window, client, DixSetAttrAccess);
+    if (rc != Success)
+        return rc;
+
+    if (dev->isMaster)
+        mod_dev = GetPairedDevice(dev);
+    else
+        mod_dev = dev;
+
+    tempGrab.device = dev;
+    tempGrab.window = win;
+    tempGrab.type =
+        (stuff->grab_type == GrabtypeButton) ? XI_ButtonPress : XI_KeyPress;
+    tempGrab.grabtype = GRABTYPE_XI2;
+    tempGrab.modifierDevice = mod_dev;
+    tempGrab.modifiersDetail.pMask = NULL;
+    tempGrab.detail.exact = stuff->detail;
+    tempGrab.detail.pMask = NULL;
+
+    modifiers = (uint32_t*)&stuff[1];
+
+    for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
+    {
+        tempGrab.modifiersDetail.exact = *modifiers;
+        DeletePassiveGrabFromList(&tempGrab);
+    }
+
+    return Success;
+}

Xi/xipassivegrab.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright © 2009 Red Hat, Inc.
+ *
+ * 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 (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Author: Peter Hutterer
+ */
+
+#ifndef XIPASSIVEGRAB_H
+#define XIPASSIVEGRAB_H
+
+int SProcXIPassiveUngrabDevice(ClientPtr client);
+int ProcXIPassiveUngrabDevice(ClientPtr client);
+void SRepXIPassiveGrabDevice(ClientPtr client, int size, xXIPassiveGrabDeviceReply * rep);
+int ProcXIPassiveGrabDevice(ClientPtr client);
+int SProcXIPassiveGrabDevice(ClientPtr client);
+
+#endif

dix/events.c

@@ -3290,6 +3290,7 @@ CheckPassiveGrabsOnWindow(
     GrabInfoPtr grabinfo;
 #define CORE_MATCH      0x1
 #define XI_MATCH        0x2
+#define XI2_MATCH        0x4
     int match = 0;
 
     if (!grab)
@@ -3319,13 +3320,24 @@ CheckPassiveGrabsOnWindow(
             xkbi= gdev->key->xkbInfo;
 	tempGrab.modifierDevice = grab->modifierDevice;
         tempGrab.modifiersDetail.exact = xkbi ? xkbi->state.grab_mods : 0;
-        /* FIXME: check for xi2 grabs */
 
-        /* Check for XI grabs first */
+        /* Check for XI2 and XI grabs first */
+        tempGrab.type = GetXI2Type((InternalEvent*)event);
+        tempGrab.grabtype = GRABTYPE_XI2;
+        if (event->type == ET_KeyPress)
+            tempGrab.detail.exact = XkbGetKeysym(device, event);
+        if (GrabMatchesSecond(&tempGrab, grab, FALSE))
+            match = XI2_MATCH;
+
+        tempGrab.detail.exact = event->detail.key;
+        if (!match)
+        {
             tempGrab.type = GetXIType((InternalEvent*)event);
             tempGrab.grabtype = GRABTYPE_XI;
             if (GrabMatchesSecond(&tempGrab, grab, FALSE))
                 match = XI_MATCH;
+        }
+
         /* Check for a core grab (ignore the device when comparing) */
         if (!match && checkCore)
         {
@@ -3399,6 +3411,15 @@ CheckPassiveGrabsOnWindow(
                 }
                 xE = &core;
                 count = 1;
+            } else if (match & XI2_MATCH)
+            {
+                rc = EventToXI2((InternalEvent*)event, &xE);
+                if (rc != Success)
+                {
+                    ErrorF("[dix] %s: XI2 conversion failed in CPGFW "
+                           "(%d, %d).\n", device->name, event->type, rc);
+                    continue;
+                }
             } else
             {
                 rc = EventToXI((InternalEvent*)event, &xE, &count);
@@ -3427,7 +3448,7 @@ CheckPassiveGrabsOnWindow(
 		grabinfo->sync.state = FROZEN_WITH_EVENT;
             }
 
-            if (match & XI_MATCH)
+            if (match & (XI_MATCH | XI2_MATCH))
                 xfree(xE); /* on core match xE == &core */
 	    return TRUE;
 	}
@@ -3435,6 +3456,7 @@ CheckPassiveGrabsOnWindow(
     return FALSE;
 #undef CORE_MATCH
 #undef XI_MATCH
+#undef XI2_MATCH
 }
 
 /**

dix/grabs.c

@@ -104,6 +104,9 @@ CreateGrab(
     grab->confineTo = confineTo;
     grab->cursor = cursor;
     grab->next = NULL;
+
+    if (grabtype == GRABTYPE_XI2)
+        memcpy(grab->xi2mask, mask->xi2mask, sizeof(mask->xi2mask));
     if (cursor)
 	cursor->refcnt++;
     return grab;

include/xkbsrv.h

@@ -948,6 +948,10 @@ extern Bool XkbCopyDeviceKeymap(
         DeviceIntPtr            /* dst */,
         DeviceIntPtr            /* src */);
 
+extern int XkbGetKeysym(
+        DeviceIntPtr            /* dev */,
+        DeviceEvent*            /* event*/);
+
 #include "xkbfile.h"
 #include <X11/extensions/XKMformat.h>
 #include "xkbrules.h"

xkb/xkbUtils.c

@@ -2116,3 +2116,33 @@ XkbCopyDeviceKeymap(DeviceIntPtr dst, DeviceIntPtr src)
 
     return ret;
 }
+
+int
+XkbGetKeysym(DeviceIntPtr dev, DeviceEvent *event)
+{
+    XkbDescPtr xkb = dev->key->xkbInfo->desc;
+    XkbKeyTypePtr kt;
+    int group;
+    int i, level = 0;
+    int modmask;
+
+    group = event->group.base + event->group.latched + event->group.locked;
+
+    if (group >= xkb->ctrls->num_groups)
+        group = XkbAdjustGroup(group, xkb->ctrls);
+
+    modmask = event->mods.base | event->mods.latched; /* don't care about
+                                                         locked mods */
+    kt = XkbKeyKeyType(xkb, event->detail.key, group);
+
+    for (i = 0; i < kt->map_count; i++)
+    {
+        if (kt->map[i].mods.mask == modmask)
+        {
+            level = kt->map[i].level;
+            break;
+        }
+    }
+
+    return XkbKeySymEntry(xkb, event->detail.key, level, group);
+}