312 lines
9.0 KiB
C
312 lines
9.0 KiB
C
/************************************************************
|
|
|
|
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.
|
|
*
|
|
*****************************************************************/
|
|
|
|
_X_EXPORT Selection *CurrentSelections;
|
|
CallbackListPtr SelectionCallback;
|
|
|
|
_X_EXPORT 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;
|
|
dixFreePrivates(pSel->devPrivates);
|
|
xfree(pSel);
|
|
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;
|
|
TryClientEvents(pSel->client, NULL, &event, 1, NoEventMask,
|
|
NoEventMask /* CantBeFiltered */, NullGrab);
|
|
}
|
|
}
|
|
else if (rc == BadMatch)
|
|
{
|
|
/*
|
|
* It doesn't exist, so add it...
|
|
*/
|
|
pSel = xalloc(sizeof(Selection));
|
|
if (!pSel)
|
|
return BadAlloc;
|
|
|
|
pSel->selection = stuff->selection;
|
|
pSel->devPrivates = NULL;
|
|
|
|
/* security creation/labeling check */
|
|
rc = XaceHookSelectionAccess(client, &pSel,
|
|
DixCreateAccess|DixSetAttrAccess);
|
|
if (rc != Success) {
|
|
xfree(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 client->noClientException;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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 client->noClientException;
|
|
}
|
|
|
|
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);
|
|
|
|
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 (TryClientEvents(pSel->client, NULL, &event, 1, NoEventMask,
|
|
NoEventMask /* CantBeFiltered */, NullGrab))
|
|
return client->noClientException;
|
|
}
|
|
|
|
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;
|
|
TryClientEvents(client, NULL, &event, 1, NoEventMask,
|
|
NoEventMask /* CantBeFiltered */, NullGrab);
|
|
return client->noClientException;
|
|
}
|