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prop.c

/* $Xorg: prop.c,v 1.4 2001/02/09 02:06:01 xorgcvs Exp $ */
/******************************************************************************

Copyright 1993, 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
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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
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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
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******************************************************************************/
/* $XFree86: xc/programs/xsm/prop.c,v 1.5tsi Exp $ */

#include "xsm.h"
#include "info.h"
#include "prop.h"
#include <X11/Xaw/List.h>

extern Widget clientListWidget;


void
FreePropValues(List *propValues)
{
    List    *pv;
    PropValue     *pval;

    for (pv = ListFirst (propValues); pv; pv = ListNext (pv))
    {
      pval = (PropValue *) pv->thing;
      XtFree ((char *) pval->value);
      XtFree ((char *) pval);
    }

    ListFreeAll (propValues);
}



void
FreeProp(Prop *prop)
{
    FreePropValues (prop->values);
    XtFree (prop->name);
    XtFree (prop->type);
    XtFree ((char *) prop);
}



void
SetInitialProperties(ClientRec *client, List *props)
{
    List *pl;

    if (verbose)
      printf("Setting initial properties for %s\n", client->clientId);

    if (client->props)
    {
      /*
       * The only way client->props could be non-NULL is if the list
       * was initialized, but nothing was added yet.  So we just free
       * the head of the list.
       */

      XtFree ((char *) client->props);
    }

    client->props = props;

    for (pl = ListFirst (props); pl; pl = ListNext (pl))
    {
      Prop        *pprop;
      PropValue   *pval;
      List        *vl;

      pprop = (Prop *) pl->thing;

      if (strcmp (pprop->name, SmDiscardCommand) == 0)
      {
          if (client->discardCommand)
            XtFree (client->discardCommand);

          vl = ListFirst (pprop->values);
          pval = (PropValue *) vl->thing;

          client->discardCommand = (char *) XtNewString (
            (char *) pval->value);
      }
      else if (strcmp (pprop->name, SmRestartStyleHint) == 0)
      {
          int hint;

          vl = ListFirst (pprop->values);
          pval = (PropValue *) vl->thing;

          hint = (int) *((char *) (pval->value));

          if (hint == SmRestartIfRunning || hint == SmRestartAnyway ||
            hint == SmRestartImmediately || hint == SmRestartNever)
          {
            client->restartHint = hint;
          }
      }
    }
}



void
SetProperty(ClientRec *client, SmProp *theProp, Bool freeIt)
{
    List    *pl;
    Prop    *pprop = NULL;
    int           found = 0, i;

    /*
     * If the property exists, delete the property values.  We can
     * re-use the actual property header.
     */

    for (pl = ListFirst (client->props); pl; pl = ListNext (pl))
    {
      pprop = (Prop *) pl->thing;

      if (strcmp (theProp->name, pprop->name) == 0 &&
          strcmp (theProp->type, pprop->type) == 0)
      {
          FreePropValues (pprop->values);
          found = 1;
          break;
      }
    }


    /*
     * Add the new property
     */

    if (!found)
    {
      pprop = (Prop *) XtMalloc (sizeof (Prop));
      pprop->name = XtNewString (theProp->name);
      pprop->type = XtNewString (theProp->type);
    }

    pprop->values = ListInit ();

    for (i = 0; i < theProp->num_vals; i++)
    {
      PropValue *pval = (PropValue *) XtMalloc (sizeof (PropValue));

      pval->length = theProp->vals[i].length;
      pval->value = (XtPointer) XtMalloc (theProp->vals[i].length + 1);
      memcpy (pval->value, theProp->vals[i].value, theProp->vals[i].length);
      ((char *) pval->value)[theProp->vals[i].length] = '\0';

      ListAddLast (pprop->values, (char *) pval);
    }

    if (pl)
      pl->thing = (char *) pprop;
    else
      ListAddLast (client->props, (char *) pprop);

    if (strcmp (theProp->name, SmDiscardCommand) == 0)
    {
      if (saveInProgress)
      {
          /*
           * We are in the middle of a save yourself.  We save the
           * discard command we get now, and make it the current discard
           * command when the save is over.
           */

          if (client->saveDiscardCommand)
            XtFree (client->saveDiscardCommand);
          client->saveDiscardCommand =
            (char *) XtNewString ((char *) theProp->vals[0].value);

          client->receivedDiscardCommand = True;
      }
      else
      {
          if (client->discardCommand)
            XtFree (client->discardCommand);
          client->discardCommand =
            (char *) XtNewString ((char *) theProp->vals[0].value);
      }
    }
    else if (strcmp (theProp->name, SmRestartStyleHint) == 0)
    {
      int hint = (int) *((char *) (theProp->vals[0].value));

      if (hint == SmRestartIfRunning || hint == SmRestartAnyway ||
          hint == SmRestartImmediately || hint == SmRestartNever)
      {
          client->restartHint = hint;
      }
    }

    if (freeIt)
      SmFreeProperty (theProp);
}



void
DeleteProperty(ClientRec *client, char *propname)
{
    List *pl;

    for (pl = ListFirst (client->props); pl; pl = ListNext (pl))
    {
      Prop *pprop = (Prop *) pl->thing;

      if (strcmp (pprop->name, propname) == 0)
      {
          FreeProp (pprop);
          ListFreeOne (pl);

          if (strcmp (propname, SmDiscardCommand) == 0)
          {
            if (client->discardCommand)
            {
                XtFree (client->discardCommand);
                client->discardCommand = NULL;
            }

            if (client->saveDiscardCommand)
            {
                XtFree (client->saveDiscardCommand);
                client->saveDiscardCommand = NULL;
            }
          }
          break;
      }
    }
}



void
SetPropertiesProc(SmsConn smsConn, SmPointer managerData, int numProps, 
              SmProp **props)
{
    ClientRec     *client = (ClientRec *) managerData;
    int           updateList, i;

    if (verbose)
    {
      printf ("Client Id = %s, received SET PROPERTIES ", client->clientId);
      printf ("[Num props = %d]\n", numProps);
    }

    updateList = (ListCount (client->props) == 0) &&
      numProps > 0 && client_info_visible;

    for (i = 0; i < numProps; i++)
    {
      SetProperty (client, props[i], True /* free it */);
    }

    free ((char *) props);

    if (updateList)
    {
      /*
       * We have enough info from the client to display it in our list.
       */

      UpdateClientList ();
      XawListHighlight (clientListWidget, current_client_selected);
    }
    else if (client_prop_visible && clientListRecs &&
      clientListRecs[current_client_selected] == client)
    {
      DisplayProps (client);
    }
}



void
DeletePropertiesProc(SmsConn smsConn, SmPointer managerData, 
                 int numProps, char **propNames)

{
    ClientRec     *client = (ClientRec *) managerData;
    int           i;

    if (verbose) {
      printf ("Client Id = %s, received DELETE PROPERTIES ",
          client->clientId);
      printf ("[Num props = %d]\n", numProps);
    }

    for (i = 0; i < numProps; i++)
    {
      if (verbose)
          printf ("   Name:   %s\n", propNames[i]);

      DeleteProperty (client, propNames[i]);

      free (propNames[i]);
    }

    free ((char *) propNames);
}



void
GetPropertiesProc(SmsConn smsConn, SmPointer managerData)
{
    ClientRec     *client = (ClientRec *) managerData;
    SmProp  **propsRet, *propRet;
    SmPropValue *propValRet;
    Prop    *pprop;
    PropValue     *pval;
    List    *pl, *pj;
    int           numProps;
    int           index, i;

    if (verbose)
    {
      printf ("Client Id = %s, received GET PROPERTIES\n", client->clientId);
      printf ("\n");
    }

    /*
     * Unfortunately, we store the properties in a format different
     * from the one required by SMlib.
     */

    numProps = ListCount (client->props);
    propsRet = (SmProp **) XtMalloc (numProps * sizeof (SmProp *));

    index = 0;
    for (pl = ListFirst (client->props); pl; pl = ListNext (pl))
    {
      propsRet[index] = propRet = (SmProp *) XtMalloc (sizeof (SmProp));

      pprop = (Prop *) pl->thing;

      propRet->name = XtNewString (pprop->name);
      propRet->type = XtNewString (pprop->type);
      propRet->num_vals = ListCount (pprop->values);
      propRet->vals = propValRet = (SmPropValue *) XtMalloc (
          propRet->num_vals * sizeof (SmPropValue));

      for (pj = ListFirst (pprop->values); pj; pj = ListNext (pj))
      {
          pval = (PropValue *) pj->thing;

          propValRet->length = pval->length;
          propValRet->value = (SmPointer) XtMalloc (pval->length);
          memcpy (propValRet->value, pval->value, pval->length);

          propValRet++;
      }

      index++;
    }

    SmsReturnProperties (smsConn, numProps, propsRet);

    if (verbose)
    {
      printf ("Client Id = %s, sent PROPERTIES REPLY [Num props = %d]\n",
            client->clientId, numProps);
    }

    for (i = 0; i < numProps; i++)
      SmFreeProperty (propsRet[i]);
    XtFree ((char *) propsRet);
}

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