closedev.c (5365B)
1 /************************************************************ 2 3 Copyright 1989, 1998 The Open Group 4 5 Permission to use, copy, modify, distribute, and sell this software and its 6 documentation for any purpose is hereby granted without fee, provided that 7 the above copyright notice appear in all copies and that both that 8 copyright notice and this permission notice appear in supporting 9 documentation. 10 11 The above copyright notice and this permission notice shall be included in 12 all copies or substantial portions of the Software. 13 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20 21 Except as contained in this notice, the name of The Open Group shall not be 22 used in advertising or otherwise to promote the sale, use or other dealings 23 in this Software without prior written authorization from The Open Group. 24 25 Copyright 1989 by Hewlett-Packard Company, Palo Alto, California. 26 27 All Rights Reserved 28 29 Permission to use, copy, modify, and distribute this software and its 30 documentation for any purpose and without fee is hereby granted, 31 provided that the above copyright notice appear in all copies and that 32 both that copyright notice and this permission notice appear in 33 supporting documentation, and that the name of Hewlett-Packard not be 34 used in advertising or publicity pertaining to distribution of the 35 software without specific, written prior permission. 36 37 HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 39 HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 43 SOFTWARE. 44 45 ********************************************************/ 46 47 /*********************************************************************** 48 * 49 * Extension function to close an extension input device. 50 * 51 */ 52 53 #ifdef HAVE_DIX_CONFIG_H 54 #include <dix-config.h> 55 #endif 56 57 #include "inputstr.h" /* DeviceIntPtr */ 58 #include "windowstr.h" /* window structure */ 59 #include "scrnintstr.h" /* screen structure */ 60 #include <X11/extensions/XI.h> 61 #include <X11/extensions/XIproto.h> 62 #include "XIstubs.h" 63 #include "exglobals.h" 64 65 #include "closedev.h" 66 67 /*********************************************************************** 68 * 69 * This procedure closes an input device. 70 * 71 */ 72 73 int _X_COLD 74 SProcXCloseDevice(ClientPtr client) 75 { 76 REQUEST(xCloseDeviceReq); 77 swaps(&stuff->length); 78 REQUEST_SIZE_MATCH(xCloseDeviceReq); 79 return (ProcXCloseDevice(client)); 80 } 81 82 /*********************************************************************** 83 * 84 * Clear out event selections and passive grabs from a window for the 85 * specified device. 86 * 87 */ 88 89 static void 90 DeleteDeviceEvents(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client) 91 { 92 InputClientsPtr others; 93 OtherInputMasks *pOthers; 94 GrabPtr grab, next; 95 96 if ((pOthers = wOtherInputMasks(pWin)) != 0) 97 for (others = pOthers->inputClients; others; others = others->next) 98 if (SameClient(others, client)) 99 others->mask[dev->id] = NoEventMask; 100 101 for (grab = wPassiveGrabs(pWin); grab; grab = next) { 102 next = grab->next; 103 if ((grab->device == dev) && 104 (client->clientAsMask == CLIENT_BITS(grab->resource))) 105 FreeResource(grab->resource, RT_NONE); 106 } 107 } 108 109 /*********************************************************************** 110 * 111 * Walk through the window tree, deleting event selections for this client 112 * from this device from all windows. 113 * 114 */ 115 116 static void 117 DeleteEventsFromChildren(DeviceIntPtr dev, WindowPtr p1, ClientPtr client) 118 { 119 WindowPtr p2; 120 121 while (p1) { 122 p2 = p1->firstChild; 123 DeleteDeviceEvents(dev, p1, client); 124 DeleteEventsFromChildren(dev, p2, client); 125 p1 = p1->nextSib; 126 } 127 } 128 129 /*********************************************************************** 130 * 131 * This procedure closes an input device. 132 * 133 */ 134 135 int 136 ProcXCloseDevice(ClientPtr client) 137 { 138 int rc, i; 139 WindowPtr pWin, p1; 140 DeviceIntPtr d; 141 142 REQUEST(xCloseDeviceReq); 143 REQUEST_SIZE_MATCH(xCloseDeviceReq); 144 145 rc = dixLookupDevice(&d, stuff->deviceid, client, DixUseAccess); 146 if (rc != Success) 147 return rc; 148 149 if (d->deviceGrab.grab && SameClient(d->deviceGrab.grab, client)) 150 (*d->deviceGrab.DeactivateGrab) (d); /* release active grab */ 151 152 /* Remove event selections from all windows for events from this device 153 * and selected by this client. 154 * Delete passive grabs from all windows for this device. */ 155 156 for (i = 0; i < screenInfo.numScreens; i++) { 157 pWin = screenInfo.screens[i]->root; 158 DeleteDeviceEvents(d, pWin, client); 159 p1 = pWin->firstChild; 160 DeleteEventsFromChildren(d, p1, client); 161 } 162 163 return Success; 164 }