source: gsdl/trunk/src/recpt/hlistbrowserclass.cpp@ 15597

/**********************************************************************
 *
 * hlistbrowserclass.cpp -- 
 * Copyright (C) 1999  The New Zealand Digital Library Project
 *
 * A component of the Greenstone digital library software
 * from the New Zealand Digital Library Project at the
 * University of Waikato, New Zealand.
 *
 * 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.
 *
 *********************************************************************/

#include "hlistbrowserclass.h"
#include <assert.h>
#include "recptprototools.h"

hlistbrowserclass::hlistbrowserclass () {
}

hlistbrowserclass::~hlistbrowserclass () {
}

// returns the name that specifies the browserclass type
text_t hlistbrowserclass::get_browser_name () {
  return "HList";
}

browserclass* hlistbrowserclass::clone()
{
  return new hlistbrowserclass();
}

void hlistbrowserclass::load_metadata_defaults (text_tset &metadata) {
  metadata.insert ("doctype");
}

text_t hlistbrowserclass::get_default_formatstring () {
  return "[link][highlight][Title][/highlight][/link]";
}

// need to change OID to it's child 
void hlistbrowserclass::processOID (cgiargsclass &args, recptproto *collectproto,
                    ostream &logout) {

  text_t OID = args["d"];
  bool is_classify = false;
  if (OID.empty()) {
    is_classify = true;
    OID = args["cl"];
  }

  FilterResponse_t response;
  text_tset metadata;
  metadata.insert ("childtype");
  text_t classifytype = "Invisible";
  text_tarray OIDs;

  while (classifytype == "Invisible" || classifytype == "HList") {
    OIDs.erase (OIDs.begin(), OIDs.end());
    
    OIDs.push_back (OID);
    OIDs.push_back (OID + ".fc");

    get_info (OIDs, args["c"], args["l"], metadata, false, collectproto, response, logout);

    // Avoid infinite loops in strange situations by checking that the OID has changed
    if (response.docInfo[1].OID == OID) {
      break;
    }
    OID = response.docInfo[1].OID;
    classifytype = response.docInfo[1].metadata["childtype"].values[0];
  }
  if (is_classify) args["cl"] = OID;
  else args["d"] = OID;
}

int hlistbrowserclass::output_section_group (ResultDocInfo_t &section, cgiargsclass &args,
                         const text_t& collection, int colnumber, 
                         format_t *formatlistptr, bool use_table, 
                         text_tset &metadata, bool &getParents, 
                         recptproto *collectproto, displayclass &disp, 
                         outconvertclass &outconvert, ostream &textout, 
                         ostream &logout) {

  // expanded contents are going to cause some nasty recursions
  // so we'll only continue if being passed the current section
  if ((args["gc"] == 1) && (section.OID != args["d"])) return 0;

  // get all siblings
  FilterResponse_t response;
  text_t &arg_cl = args["cl"];
  get_children (section.OID + ".pr", args["c"], args["l"], metadata, getParents, 
        collectproto, response, logout);

  /* use_table is set to true if the format string starts with <td> */
  if (use_table || colnumber > 0) {
    textout << outconvert << "<table><tr><td>";
    // get tab size
    text_t tab; int itab;
    disp.expandstring (displayclass::defaultpackage, "_tabwidth_", tab);
    itab = tab.getint();
    if (colnumber > 0) textout << outconvert << disp 
                   << "<img alt=\"\" src=\"_httpimg_/space.gif\" width=\"" 
                   << (itab*colnumber) << "\"/>";
    textout << outconvert << "</td>\n";
  }

  if (use_table)
    textout << outconvert << "<table class=\"h_list\"><tr>\n";
  else
    textout << outconvert << "<div class=\"h_list\">\n";

  ResultDocInfo_tarray::iterator tsibling = response.docInfo.begin();
  ResultDocInfo_tarray::iterator esibling = response.docInfo.end();

  text_t icon, link;
  
  while (tsibling != esibling) {

    bool highlight = false;
    text_t &doctype = (*tsibling).metadata["doctype"].values[0];

    if ((*tsibling).OID == section.OID) {
      link.clear();
      highlight = true;   
    } else {
      link = "<a href=\"_httpdocument_";
      if (doctype == "classify") 
    link += "&amp;cl=" + (*tsibling).OID + "\">";
      else {
    link += "&amp;cl=" + arg_cl + "&amp;d=" + (*tsibling).OID;// + "\">";
    // [modification to allow default document detach settings -- kjdon]
    if (args["xx"]=="1") {
      // documents should be detached
      link += "&amp;x=1\" target=\"_blank\">";
    } else {
      link += "\">";
    }
      }
    }

    text_tmap options;
    options["link"] = link;
    options["icon"] = icon;
    if (highlight) options["highlight"] = "1";
    else options["highlight"] = "0";
    
    text_t fmt_str=get_formatted_string (collection, collectproto,
                      *tsibling, disp, formatlistptr,
                      options, logout);

    text_t span_class = "h_item";
    if (highlight) {
      // the current option
      span_class += " h_item_current";
    }
      
    textout << outconvert << "<span class=\""<<span_class<<"\">" << disp << fmt_str << "</span>\n";
    ++tsibling;
  }

  if (use_table)
    textout << outconvert << "</tr></table>\n";
  else
    textout << outconvert << "</div>\n";

  if (use_table  || colnumber > 0) textout << outconvert << "</tr></table>\n";

  return 0;
}

int hlistbrowserclass::output_section_group (FilterResponse_t &/*sections*/, cgiargsclass &/*args*/,
                         const text_t &/*collection*/, int /*colnumber*/, 
                         format_t * /*formatlistptr*/, bool /*use_table*/, 
                         text_tset &/*metadata*/, bool &/*getParents*/,
                         recptproto * /*collectproto*/, displayclass &/*disp*/, 
                         outconvertclass &/*outconvert*/, ostream &/*textout*/, 
                         ostream &/*logout*/) {
  return 0;
}