/*    Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis
 
 *
 
 *  This program is free software; you can redistribute it and/or modify
 
 *  it under the terms of the GNU General Public License as published by
 
 *  the Free Software Foundation; either version 2 of the License, or
 
 *  (at your option) any later version.
 
 *
 
 *  This program is distributed in the hope that it will be useful,
 
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
 *  GNU General Public License for more details.
 
 *
 
 *  You should have received a copy of the GNU General Public License
 
 *  along with this program; if not, write to the Free Software
 
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 */
 
 
 
/* html form simplification routines */
 
#include "wims.h"
 
 
 
#define MAX_MENU_ITEMS 256
 
 
 
enum {
 
  FORM_SELECT, FORM_RADIO, FORM_BAR, FORM_CHECKBOX
 
};
 
 
 
/* Produces <select> and <option>s.
 
 * Parameter string: name from n1 to n2 [prompt plist]
 
 * or name, list slist [prompt plist]
 
 * Using script to do this is too slow.
 
 */
 
void _form_menus(char *p,int kind)
 
{
 
  char *n, *li, *pp, *val, *p0, *p1, *p2, *pc, *s, *hmode, *name;
 
  char *vlist[MAX_MENU_ITEMS], *plist[MAX_MENU_ITEMS];
 
  char nbuf[MAX_LINELEN+1],vbuf[MAX_LINELEN+1],pbuf[MAX_LINELEN+1];
 
  char buf[256], pfrb[256], pfre[256], input_id[128];
 
  int i,i1=0,i2,itemcnt,type;
 
  if(!outputing) return;
 
  n=find_word_start(p); if(*n==0) return;
 
  pp=find_word_end(n);
 
  if(*pp!=0) *(pp++)=0;
 
  else {
 
    syntax: module_error("syntax_error"); return;
 
  }
 
  li=find_word_start(pp); pp=find_word_end(li);
 
  if(*pp!=0) *(pp++)=0; else goto syntax;
 
  itemcnt=0;
 
    p1=find_word_start(pp);
 
    p2=wordchr(p1,"to"); if(p2==NULL || p2<=p1) goto syntax;
 
    *(p2
-1)=0; p2
=find_word_start
(p2
+strlen("to"));  
    pp=wordchr(p2,"prompt"); if(pp!=NULL) *(pp-1)=0;
 
    i1=evalue(p1); i2=evalue(p2);
 
    if(i1<-100000000 || i1>100000000 || i2<-100000000 || i2>100000000)
 
      goto syntax;
 
    if(i2<i1) return;
 
    if(i2>i1+MAX_MENU_ITEMS-1) i2=i1+MAX_MENU_ITEMS-1;
 
    itemcnt=i2-i1+1;
 
    type=0;
 
  }
 
  else {
 
      p1=find_word_start(pp);
 
      pp=wordchr(p1,"prompt"); if(pp!=NULL && pp>p1) *(pp-1)=0;
 
      ovlstrcpy(vbuf,p1);substit(vbuf);
 
      itemcnt=cutitems(vbuf,vlist,MAX_MENU_ITEMS);
 
      type=1;
 
    }
 
    else goto syntax;
 
  }
 
  for(i=0;i<itemcnt;i++) plist[i]=NULL;
 
  if(pp!=NULL) {
 
    p1
=find_word_start
(pp
+strlen("prompt")); 
    ovlstrcpy(pbuf,p1);substit(pbuf);
 
    cutitems(pbuf,plist,MAX_MENU_ITEMS);
 
  }
 
  ovlstrcpy(nbuf,n);substit(nbuf);
 
  if(kind==FORM_SELECT) {
 
    char *pp;
 
    pp=getvar("wims_formselect_switch"); if(pp==NULL) pp="";
 
    output("<select %s name=\"%s\" id=\"%s\">\n",pp,nbuf,nbuf);
 
  }
 
  if(kind==FORM_BAR) {
 
    s=getvar("wims_ref_class");
 
    if(s
!=NULL 
&& *s
!=0 && !isspace(*s
)) {  
      snprintf(pfrb
,sizeof(pfrb
)," <span class=\"%s\">",s
); strcpy(pfre
,"</span>");  
    } else { pfrb[0]=0; pfre[0]=0; }
 
    output("%s<span style=\"font-weight:bold;\">-</span> ",pfrb);
 
  }
 
  val=getvar(nbuf);if(val==NULL) val="";
 
 
 
  s = getvar("wims_ref_id");
 
  else { strcpy(input_id
,nbuf
);}  
 
 
  for(i=0;i<itemcnt;i++) {
 
    if(type==0) {
 
      p0=buf;
 
    }
 
    else p0=vlist[i];
 
    if(*find_word_start(p0)==0) continue;
 
    if(plist[i]==NULL) plist[i]=p0;
 
    if(*val!=0 &&
 
        ( (kind==FORM_SELECT || kind==FORM_CHECKBOX)
 
        && itemchr(val,p0)!=NULL))) {
 
      if(kind==FORM_SELECT) pc=" selected=\"selected\"";
 
      else pc=" checked=\"checked\"";
 
    }
 
    else pc="";
 
 
 
    s = getvar("wims_ref_class");
 
    hmode=getvar("wims_html_mode");
 
    pfrb[0]=0; pfre[0]=0;
 
    if(s
!=NULL 
&& *s
!=0 && !isspace(*s
)) {  
      if(hmode
==NULL 
|| *hmode
==0 || isspace(*hmode
)) {  
        hmode="span";
 
      }
 
      snprintf(pfrb
, sizeof(pfrb
), "<%s class=\"%s\">", hmode
, s
);  
      snprintf(pfre
, sizeof(pfre
), "</%s>", hmode
);  
    } else {
 
      if(hmode!=NULL && *hmode!=0) {
 
        snprintf(pfrb
, sizeof(pfrb
), "<%s>", hmode
);  
        snprintf(pfre
, sizeof(pfre
), "</%s>", hmode
);  
      }
 
    }
 
    switch(kind) {
 
      case FORM_RADIO: name="radio"; break;
 
      case FORM_CHECKBOX: name="checkbox"; break;
 
      case FORM_BAR: name="radio"; break;
 
      default: name="";
 
    }
 
    switch(kind) {
 
      case FORM_SELECT:
 
        output("<option value=\"%s\"%s>%s</option>\n", p0, pc, plist[i]);
 
        break;
 
 
 
      case FORM_RADIO:
 
      case FORM_CHECKBOX:
 
        if (itemcnt > 1) {
 
          output("%s<input type=\"%s\" name=\"%s\" id=\"%s_%d\" value=\"%s\"%s/><label for=\"%s_%d\">%s</label>%s",
 
           pfrb,name,nbuf,input_id,i+1,p0,pc,input_id,i+1,plist[i],pfre);
 
        } else {
 
          output("%s<input type=\"%s\" name=\"%s\" id=\"%s\" value=\"%s\"%s/><label for=\"%s\">%s</label>%s",
 
           pfrb,name,nbuf,input_id,p0,pc,input_id,plist[i],pfre);
 
        }
 
        if(i<itemcnt-1 && itemcnt>2 && (hmode==NULL || *hmode==0)) _output_(",");
 
        _output_("\n");
 
        break;
 
      case FORM_BAR:
 
        output("<input type=\"%s\" name=\"%s\" id=\"%s_%d\" title=\"%s\" value=\"%s\"%s/><label style=\"display:none\" for=\"%s_%d\">%s</label>",
 
           name,nbuf,input_id,i+1,p0,p0,pc,input_id,i+1,p0);
 
        break;
 
    }
 
  }
 
  setvar("wims_ref_class","");
 
  setvar("wims_ref_id","");
 
  setvar("wims_html_mode","");
 
  if(kind==FORM_SELECT) _output_("</select>");
 
  if(kind==FORM_BAR) output(" <span style=\"font-weight:bold;\">+</span>");
 
}
 
 
 
void exec_formselect(char *p)
 
{
 
  _form_menus(p,FORM_SELECT);
 
}
 
 
 
void exec_formradio(char *p)
 
{
 
  _form_menus(p,FORM_RADIO);
 
}
 
 
 
void exec_formcheckbox(char *p)
 
{
 
  _form_menus(p,FORM_CHECKBOX);
 
}
 
 
 
void exec_formbar(char *p)
 
{
 
  _form_menus(p,FORM_BAR);
 
}