Open-ILS/web/opac/skin/default/js/cn_browse.js

   1 var cnBrowseCurrent;
   2 var cnBrowseTopCn;
   3 var cnBrowseTopId;
   4 var cnBrowseBottomCn;
   5 var cnBrowseBottomId;
   6 var cnBrowseDepth;
   7 var cnBrowseCache = {};
   8 var cnBrowseShowNext = false;
   9 var cnBrowseShowPrev = false;
  10 var MAX_CN = 9;
  11
  12 if( findCurrentPage() == CNBROWSE ) {
  13         attachEvt("common", "run", cnBrowseLoadSearch);
  14         attachEvt( "common", "locationUpdated", cnBrowseResubmit );
  15 }
  16
  17 function cnBrowseLoadSearch() {
  18         unHideMe($('cn_browse'));
  19         cnBrowseGo(getCallnumber(), getDepth());
  20 }
  21
  22 function cnBrowseResubmit() {
  23         var args = {}
  24         args[PARAM_CN] = cnBrowseCurrent;
  25         args[PARAM_DEPTH] = getNewSearchDepth();
  26         args[PARAM_LOCATION] = getNewSearchLocation();
  27         goTo(buildOPACLink(args));
  28 }
  29
  30 function cnBrowseGo(cn, depth) {
  31         if(depth == null) depth = getDepth();
  32         cnBrowseDepth = depth;
  33         cnBrowseCurrent = cn;
  34         var req = new Request( FETCH_CNBROWSE_TARGET,
  35                 'org_unit', getLocation(),
  36                 'depth', cnBrowseDepth,
  37                 'label', cnBrowseCurrent,
  38                 'page_size', MAX_CN );
  39         req.callback( cnBrowseDraw );
  40         req.send();
  41 }
  42
  43 function cnBrowseNext() {
  44         cnBrowseShowNext = true;
  45         if( cnBrowseCache.next )  /* if we have it, show it */
  46                 cnBrowseClearNext(cnBrowseCache.next);
  47 }
  48
  49 function cnBrowsePrev() {
  50         cnBrowseShowPrev = true;
  51         if( cnBrowseCache.prev )
  52                 cnBrowseClearPrev(cnBrowseCache.prev);
  53 }
  54
  55 function cnBrowseGrabNext() {
  56         var req = new Request( FETCH_CNBROWSE_NEXT,
  57                 'org_unit', getLocation(),
  58                 'depth', cnBrowseDepth,
  59                 'label', cnBrowseBottomCn,
  60                 'boundry_id', cnBrowseBottomId,
  61                 'page_size', MAX_CN );
  62         req.callback( cnBrowseCacheMe );
  63         req.request.next = true;
  64         req.send();
  65 }
  66
  67
  68 function cnBrowseGrabPrev() {
  69         var req = new Request( FETCH_CNBROWSE_PREV,
  70                 'org_unit', getLocation(),
  71                 'depth', cnBrowseDepth,
  72                 'label', cnBrowseTopCn,
  73                 'boundry_id', cnBrowseTopId,
  74                 'page_size', MAX_CN );
  75         req.callback( cnBrowseCacheMe );
  76         req.request.prev = true;
  77         req.send();
  78 }
  79
  80 function cnBrowseClearNext(list) {
  81         cnBrowseCache.next = null;
  82         cnBrowseShowNext = false;
  83         _cnBrowseDraw(list);
  84 }
  85
  86 function cnBrowseClearPrev(list) {
  87         cnBrowseCache.prev = null;
  88         cnBrowseShowPrev = false;
  89         _cnBrowseDraw(list);
  90 }
  91
  92 /* cache next and previous calls unless they are
  93 needed immediately */
  94 function cnBrowseCacheMe(r) {
  95         var list = r.getResultObject();
  96         if( r.next ) {
  97                 cnBrowseCache.next = list;
  98                 if( cnBrowseShowNext ) {
  99                         cnBrowseClearNext(list);
 100                 }
 101
 102         } else if( r.prev ) {
 103                 cnBrowseCache.prev = list;
 104                 if( cnBrowseShowPrev )  {
 105                         cnBrowseClearPrev(list);
 106                 }
 107         }
 108 }
 109
 110
 111 function cnBrowseDraw( r ) {
 112         var list = r.getResultObject();
 113         _cnBrowseDraw(list);
 114 }
 115
 116
 117 var cnTbody;
 118 var cnRowT;
 119 var cnTdT;
 120 function _cnBrowseDraw( list ) {
 121
 122         if(!cnTbody) {
 123                 cnTbody = $('cn_tbody');
 124                 cnRowT = $('cn_browse_row');
 125                 cnTdT = cnRowT.removeChild($('cn_browse_td'));
 126                 cnTbody.removeChild(cnRowT);
 127         }
 128         removeChildren(cnTbody);
 129
 130         var counter = 1;
 131         var currentRow = cnRowT.cloneNode(true);
 132         cnTbody.appendChild(currentRow);
 133
 134         for( var idx in list ) {
 135
 136
 137                 var currentTd = cnTdT.cloneNode(true);
 138                 currentRow.appendChild(currentTd);
 139
 140                 var td = cnTdT.cloneNode(true);
 141                 var label       = list[idx][0];
 142                 var lib         = list[idx][1];
 143                 var record      = list[idx][2];
 144                 var id          = list[idx][3];
 145
 146                 if( idx == 0 ) { cnBrowseTopCn = label; cnBrowseTopId = id; }
 147                 cnBrowseBottomCn = label;
 148                 cnBrowseBottomId = id;
 149
 150                 var cn_td                       = $n(currentTd, 'cn_browse_cn');
 151                 var lib_td                      = $n(currentTd, 'cn_browse_lib');
 152                 var title_td            = $n(currentTd, 'cn_browse_title');
 153                 var author_td           = $n(currentTd, 'cn_browse_author');
 154                 var pic_td                      = $n(currentTd, 'cn_browse_pic');
 155
 156                 cn_td.appendChild(text(label));
 157                 lib_td.appendChild(text(findOrgUnit(lib).name()));
 158
 159                 var req = new Request( FETCH_RMODS, record );
 160                 req.request.title_td            = title_td;
 161                 req.request.author_td   = author_td;
 162                 req.request.pic_td              = pic_td;
 163                 req.callback( cnBrowseDrawTitle );
 164                 req.send();
 165
 166
 167                 if( counter++ % 3 == 0 ) {
 168                         counter = 1;
 169                         currentRow = cnRowT.cloneNode(true);
 170                         cnTbody.appendChild(currentRow);
 171                 }
 172         }
 173         cnBrowseGrabNext();
 174         cnBrowseGrabPrev();
 175 }
 176
 177 function cnBrowseDrawTitle(r) {
 178         var mods = r.getResultObject();
 179
 180         buildTitleDetailLink(mods, r.title_td);
 181         buildSearchLink(STYPE_AUTHOR, mods.author(), r.author_td);
 182         r.pic_td.setAttribute("src", buildISBNSrc(cleanISBN(mods.isbn())));
 183
 184         var args = {};
 185         args.page = RDETAIL;
 186         args[PARAM_OFFSET] = 0;
 187         args[PARAM_RID] = mods.doc_id();
 188         args[PARAM_MRID] = 0;
 189         r.pic_td.parentNode.setAttribute("href", buildOPACLink(args));
 190 }
 191