diff options
Diffstat (limited to 'xorg-server/dix/selection.c')
| -rw-r--r-- | xorg-server/dix/selection.c | 620 |
1 files changed, 309 insertions, 311 deletions
diff --git a/xorg-server/dix/selection.c b/xorg-server/dix/selection.c index 732ba34e5..dfdcfdc64 100644 --- a/xorg-server/dix/selection.c +++ b/xorg-server/dix/selection.c @@ -1,311 +1,309 @@ -/************************************************************
-
-Copyright 1987, 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 1987, 1989 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- 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 Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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.
-
-********************************************************/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "windowstr.h"
-#include "dixstruct.h"
-#include "dispatch.h"
-#include "selection.h"
-#include "xace.h"
-
-/*****************************************************************
- * Selection Stuff
- *
- * dixLookupSelection
- *
- * Selections are global to the server. The list of selections should
- * not be traversed directly. Instead, use the functions listed above.
- *
- *****************************************************************/
-
-Selection *CurrentSelections;
-CallbackListPtr SelectionCallback;
-
-int
-dixLookupSelection(Selection **result, Atom selectionName,
- ClientPtr client, Mask access_mode)
-{
- Selection *pSel;
- int rc = BadMatch;
- client->errorValue = selectionName;
-
- for (pSel = CurrentSelections; pSel; pSel = pSel->next)
- if (pSel->selection == selectionName)
- break;
-
- if (pSel)
- rc = XaceHookSelectionAccess(client, &pSel, access_mode);
- *result = pSel;
- return rc;
-}
-
-void
-InitSelections(void)
-{
- Selection *pSel, *pNextSel;
-
- pSel = CurrentSelections;
- while (pSel) {
- pNextSel = pSel->next;
- dixFreeObjectWithPrivates(pSel, PRIVATE_SELECTION);
- pSel = pNextSel;
- }
-
- CurrentSelections = NULL;
-}
-
-static _X_INLINE void
-CallSelectionCallback(Selection *pSel, ClientPtr client,
- SelectionCallbackKind kind)
-{
- SelectionInfoRec info = { pSel, client, kind };
- CallCallbacks(&SelectionCallback, &info);
-}
-
-void
-DeleteWindowFromAnySelections(WindowPtr pWin)
-{
- Selection *pSel;
-
- for (pSel = CurrentSelections; pSel; pSel = pSel->next)
- if (pSel->pWin == pWin) {
- CallSelectionCallback(pSel, NULL, SelectionWindowDestroy);
-
- pSel->pWin = (WindowPtr)NULL;
- pSel->window = None;
- pSel->client = NullClient;
- }
-}
-
-void
-DeleteClientFromAnySelections(ClientPtr client)
-{
- Selection *pSel;
-
- for (pSel = CurrentSelections; pSel; pSel = pSel->next)
- if (pSel->client == client) {
- CallSelectionCallback(pSel, NULL, SelectionClientClose);
-
- pSel->pWin = (WindowPtr)NULL;
- pSel->window = None;
- pSel->client = NullClient;
- }
-}
-
-int
-ProcSetSelectionOwner(ClientPtr client)
-{
- WindowPtr pWin = NULL;
- TimeStamp time;
- Selection *pSel;
- int rc;
-
- REQUEST(xSetSelectionOwnerReq);
- REQUEST_SIZE_MATCH(xSetSelectionOwnerReq);
-
- UpdateCurrentTime();
- time = ClientTimeToServerTime(stuff->time);
-
- /* If the client's time stamp is in the future relative to the server's
- time stamp, do not set the selection, just return success. */
- if (CompareTimeStamps(time, currentTime) == LATER)
- return Success;
-
- if (stuff->window != None) {
- rc = dixLookupWindow(&pWin, stuff->window, client, DixSetAttrAccess);
- if (rc != Success)
- return rc;
- }
- if (!ValidAtom(stuff->selection)) {
- client->errorValue = stuff->selection;
- return BadAtom;
- }
-
- /*
- * First, see if the selection is already set...
- */
- rc = dixLookupSelection(&pSel, stuff->selection, client, DixSetAttrAccess);
-
- if (rc == Success) {
- xEvent event;
-
- /* If the timestamp in client's request is in the past relative
- to the time stamp indicating the last time the owner of the
- selection was set, do not set the selection, just return
- success. */
- if (CompareTimeStamps(time, pSel->lastTimeChanged) == EARLIER)
- return Success;
- if (pSel->client && (!pWin || (pSel->client != client)))
- {
- event.u.u.type = SelectionClear;
- event.u.selectionClear.time = time.milliseconds;
- event.u.selectionClear.window = pSel->window;
- event.u.selectionClear.atom = pSel->selection;
- WriteEventsToClient(pSel->client, 1, &event);
- }
- }
- else if (rc == BadMatch)
- {
- /*
- * It doesn't exist, so add it...
- */
- pSel = dixAllocateObjectWithPrivates(Selection, PRIVATE_SELECTION);
- if (!pSel)
- return BadAlloc;
-
- pSel->selection = stuff->selection;
-
- /* security creation/labeling check */
- rc = XaceHookSelectionAccess(client, &pSel,
- DixCreateAccess|DixSetAttrAccess);
- if (rc != Success) {
- free(pSel);
- return rc;
- }
-
- pSel->next = CurrentSelections;
- CurrentSelections = pSel;
- }
- else
- return rc;
-
- pSel->lastTimeChanged = time;
- pSel->window = stuff->window;
- pSel->pWin = pWin;
- pSel->client = (pWin ? client : NullClient);
-
- CallSelectionCallback(pSel, client, SelectionSetOwner);
- return Success;
-}
-
-int
-ProcGetSelectionOwner(ClientPtr client)
-{
- int rc;
- Selection *pSel;
- xGetSelectionOwnerReply reply;
-
- REQUEST(xResourceReq);
- REQUEST_SIZE_MATCH(xResourceReq);
-
- if (!ValidAtom(stuff->id)) {
- client->errorValue = stuff->id;
- return BadAtom;
- }
-
- memset(&reply, 0, sizeof(xGetSelectionOwnerReply));
- reply.type = X_Reply;
- reply.length = 0;
- reply.sequenceNumber = client->sequence;
-
- rc = dixLookupSelection(&pSel, stuff->id, client, DixGetAttrAccess);
- if (rc == Success)
- reply.owner = pSel->window;
- else if (rc == BadMatch)
- reply.owner = None;
- else
- return rc;
-
- WriteReplyToClient(client, sizeof(xGetSelectionOwnerReply), &reply);
- return Success;
-}
-
-int
-ProcConvertSelection(ClientPtr client)
-{
- Bool paramsOkay;
- xEvent event;
- WindowPtr pWin;
- Selection *pSel;
- int rc;
-
- REQUEST(xConvertSelectionReq);
- REQUEST_SIZE_MATCH(xConvertSelectionReq);
-
- rc = dixLookupWindow(&pWin, stuff->requestor, client, DixSetAttrAccess);
- if (rc != Success)
- return rc;
-
- paramsOkay = ValidAtom(stuff->selection) && ValidAtom(stuff->target);
- paramsOkay &= (stuff->property == None) || ValidAtom(stuff->property);
- if (!paramsOkay) {
- client->errorValue = stuff->property;
- return BadAtom;
- }
-
- rc = dixLookupSelection(&pSel, stuff->selection, client, DixReadAccess);
-
- memset(&event, 0, sizeof(xEvent));
- if (rc != Success && rc != BadMatch)
- return rc;
- else if (rc == Success && pSel->window != None) {
- event.u.u.type = SelectionRequest;
- event.u.selectionRequest.owner = pSel->window;
- event.u.selectionRequest.time = stuff->time;
- event.u.selectionRequest.requestor = stuff->requestor;
- event.u.selectionRequest.selection = stuff->selection;
- event.u.selectionRequest.target = stuff->target;
- event.u.selectionRequest.property = stuff->property;
- if (pSel->client && pSel->client != serverClient && !pSel->client->clientGone)
- {
- WriteEventsToClient(pSel->client, 1, &event);
- return Success;
- }
- }
-
- event.u.u.type = SelectionNotify;
- event.u.selectionNotify.time = stuff->time;
- event.u.selectionNotify.requestor = stuff->requestor;
- event.u.selectionNotify.selection = stuff->selection;
- event.u.selectionNotify.target = stuff->target;
- event.u.selectionNotify.property = None;
- WriteEventsToClient(client, 1, &event);
- return Success;
-}
+/************************************************************ + +Copyright 1987, 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 1987, 1989 by Digital Equipment Corporation, Maynard, Massachusetts. + + 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 Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL 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. + +********************************************************/ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include "windowstr.h" +#include "dixstruct.h" +#include "dispatch.h" +#include "selection.h" +#include "xace.h" + +/***************************************************************** + * Selection Stuff + * + * dixLookupSelection + * + * Selections are global to the server. The list of selections should + * not be traversed directly. Instead, use the functions listed above. + * + *****************************************************************/ + +Selection *CurrentSelections; +CallbackListPtr SelectionCallback; + +int +dixLookupSelection(Selection ** result, Atom selectionName, + ClientPtr client, Mask access_mode) +{ + Selection *pSel; + int rc = BadMatch; + + client->errorValue = selectionName; + + for (pSel = CurrentSelections; pSel; pSel = pSel->next) + if (pSel->selection == selectionName) + break; + + if (pSel) + rc = XaceHookSelectionAccess(client, &pSel, access_mode); + *result = pSel; + return rc; +} + +void +InitSelections(void) +{ + Selection *pSel, *pNextSel; + + pSel = CurrentSelections; + while (pSel) { + pNextSel = pSel->next; + dixFreeObjectWithPrivates(pSel, PRIVATE_SELECTION); + pSel = pNextSel; + } + + CurrentSelections = NULL; +} + +static _X_INLINE void +CallSelectionCallback(Selection * pSel, ClientPtr client, + SelectionCallbackKind kind) +{ + SelectionInfoRec info = { pSel, client, kind }; + CallCallbacks(&SelectionCallback, &info); +} + +void +DeleteWindowFromAnySelections(WindowPtr pWin) +{ + Selection *pSel; + + for (pSel = CurrentSelections; pSel; pSel = pSel->next) + if (pSel->pWin == pWin) { + CallSelectionCallback(pSel, NULL, SelectionWindowDestroy); + + pSel->pWin = (WindowPtr) NULL; + pSel->window = None; + pSel->client = NullClient; + } +} + +void +DeleteClientFromAnySelections(ClientPtr client) +{ + Selection *pSel; + + for (pSel = CurrentSelections; pSel; pSel = pSel->next) + if (pSel->client == client) { + CallSelectionCallback(pSel, NULL, SelectionClientClose); + + pSel->pWin = (WindowPtr) NULL; + pSel->window = None; + pSel->client = NullClient; + } +} + +int +ProcSetSelectionOwner(ClientPtr client) +{ + WindowPtr pWin = NULL; + TimeStamp time; + Selection *pSel; + int rc; + + REQUEST(xSetSelectionOwnerReq); + REQUEST_SIZE_MATCH(xSetSelectionOwnerReq); + + UpdateCurrentTime(); + time = ClientTimeToServerTime(stuff->time); + + /* If the client's time stamp is in the future relative to the server's + time stamp, do not set the selection, just return success. */ + if (CompareTimeStamps(time, currentTime) == LATER) + return Success; + + if (stuff->window != None) { + rc = dixLookupWindow(&pWin, stuff->window, client, DixSetAttrAccess); + if (rc != Success) + return rc; + } + if (!ValidAtom(stuff->selection)) { + client->errorValue = stuff->selection; + return BadAtom; + } + + /* + * First, see if the selection is already set... + */ + rc = dixLookupSelection(&pSel, stuff->selection, client, DixSetAttrAccess); + + if (rc == Success) { + xEvent event; + + /* If the timestamp in client's request is in the past relative + to the time stamp indicating the last time the owner of the + selection was set, do not set the selection, just return + success. */ + if (CompareTimeStamps(time, pSel->lastTimeChanged) == EARLIER) + return Success; + if (pSel->client && (!pWin || (pSel->client != client))) { + event.u.u.type = SelectionClear; + event.u.selectionClear.time = time.milliseconds; + event.u.selectionClear.window = pSel->window; + event.u.selectionClear.atom = pSel->selection; + WriteEventsToClient(pSel->client, 1, &event); + } + } + else if (rc == BadMatch) { + /* + * It doesn't exist, so add it... + */ + pSel = dixAllocateObjectWithPrivates(Selection, PRIVATE_SELECTION); + if (!pSel) + return BadAlloc; + + pSel->selection = stuff->selection; + + /* security creation/labeling check */ + rc = XaceHookSelectionAccess(client, &pSel, + DixCreateAccess | DixSetAttrAccess); + if (rc != Success) { + free(pSel); + return rc; + } + + pSel->next = CurrentSelections; + CurrentSelections = pSel; + } + else + return rc; + + pSel->lastTimeChanged = time; + pSel->window = stuff->window; + pSel->pWin = pWin; + pSel->client = (pWin ? client : NullClient); + + CallSelectionCallback(pSel, client, SelectionSetOwner); + return Success; +} + +int +ProcGetSelectionOwner(ClientPtr client) +{ + int rc; + Selection *pSel; + xGetSelectionOwnerReply reply; + + REQUEST(xResourceReq); + REQUEST_SIZE_MATCH(xResourceReq); + + if (!ValidAtom(stuff->id)) { + client->errorValue = stuff->id; + return BadAtom; + } + + memset(&reply, 0, sizeof(xGetSelectionOwnerReply)); + reply.type = X_Reply; + reply.length = 0; + reply.sequenceNumber = client->sequence; + + rc = dixLookupSelection(&pSel, stuff->id, client, DixGetAttrAccess); + if (rc == Success) + reply.owner = pSel->window; + else if (rc == BadMatch) + reply.owner = None; + else + return rc; + + WriteReplyToClient(client, sizeof(xGetSelectionOwnerReply), &reply); + return Success; +} + +int +ProcConvertSelection(ClientPtr client) +{ + Bool paramsOkay; + xEvent event; + WindowPtr pWin; + Selection *pSel; + int rc; + + REQUEST(xConvertSelectionReq); + REQUEST_SIZE_MATCH(xConvertSelectionReq); + + rc = dixLookupWindow(&pWin, stuff->requestor, client, DixSetAttrAccess); + if (rc != Success) + return rc; + + paramsOkay = ValidAtom(stuff->selection) && ValidAtom(stuff->target); + paramsOkay &= (stuff->property == None) || ValidAtom(stuff->property); + if (!paramsOkay) { + client->errorValue = stuff->property; + return BadAtom; + } + + rc = dixLookupSelection(&pSel, stuff->selection, client, DixReadAccess); + + memset(&event, 0, sizeof(xEvent)); + if (rc != Success && rc != BadMatch) + return rc; + else if (rc == Success && pSel->window != None) { + event.u.u.type = SelectionRequest; + event.u.selectionRequest.owner = pSel->window; + event.u.selectionRequest.time = stuff->time; + event.u.selectionRequest.requestor = stuff->requestor; + event.u.selectionRequest.selection = stuff->selection; + event.u.selectionRequest.target = stuff->target; + event.u.selectionRequest.property = stuff->property; + if (pSel->client && pSel->client != serverClient && + !pSel->client->clientGone) { + WriteEventsToClient(pSel->client, 1, &event); + return Success; + } + } + + event.u.u.type = SelectionNotify; + event.u.selectionNotify.time = stuff->time; + event.u.selectionNotify.requestor = stuff->requestor; + event.u.selectionNotify.selection = stuff->selection; + event.u.selectionNotify.target = stuff->target; + event.u.selectionNotify.property = None; + WriteEventsToClient(client, 1, &event); + return Success; +} |