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($('cn_browse'));
  19         cnBrowseGo(getCallnumber(), getDepth());
  20 }
  21
  22 function cnBrowseResubmit() {
  23         var args = {}
  24         args[PARAM_CN] = cnBrowseCurrent;
  25         args[PARAM_DEPTH] = getNewSearchDepth();
  26         args[PARAM_LOCATION] = getNewSearchLocation();
  27         goTo(buildOPACLink(args));
  28 }
  29
  30 function cnBrowseGo(cn, depth) {
  31         if(depth == null) depth = getDepth();
  32         cnBrowseDepth = depth;
  33         cnBrowseCurrent = cn;
  34         var req = new Request( FETCH_CNBROWSE_TARGET,
  35                 'org_unit', getLocation(),
  36                 'depth', cnBrowseDepth,
  37                 'label', cnBrowseCurrent,
  38                 'page_size', MAX_CN );
  39         req.callback( cnBrowseDraw );
  40         req.send();
  41
  42         var o = findOrgUnit(getLocation());
  43         var d = findOrgDepth(o);
  44         var x = 0;
  45         while( d > depth ) {
  46                 o = findOrgUnit(o.parent_ou());
  47                 d = findOrgDepth(o);
  48         }
  49         appendClear($('cn_browse_where'), text(o.name()));
  50 }
  51
  52 function cnBrowseNext() {
  53         cnBrowseShowNext = true;
  54         if( cnBrowseCache.next )  /* if we have it, show it */
  55                 cnBrowseClearNext(cnBrowseCache.next);
  56 }
  57
  58 function cnBrowsePrev() {
  59         cnBrowseShowPrev = true;
  60         if( cnBrowseCache.prev )
  61                 cnBrowseClearPrev(cnBrowseCache.prev);
  62 }
  63
  64 function cnBrowseGrabNext() {
  65         var req = new Request( FETCH_CNBROWSE_NEXT,
  66                 'org_unit', getLocation(),
  67                 'depth', cnBrowseDepth,
  68                 'label', cnBrowseBottomCn,
  69                 'boundry_id', cnBrowseBottomId,
  70                 'page_size', MAX_CN );
  71         req.callback( cnBrowseCacheMe );
  72         req.request.next = true;
  73         req.send();
  74 }
  75
  76
  77 function cnBrowseGrabPrev() {
  78         var req = new Request( FETCH_CNBROWSE_PREV,
  79                 'org_unit', getLocation(),
  80                 'depth', cnBrowseDepth,
  81                 'label', cnBrowseTopCn,
  82                 'boundry_id', cnBrowseTopId,
  83                 'page_size', MAX_CN );
  84         req.callback( cnBrowseCacheMe );
  85         req.request.prev = true;
  86         req.send();
  87 }
  88
  89 function cnBrowseClearNext(list) {
  90         cnBrowseCache.next = null;
  91         cnBrowseShowNext = false;
  92         _cnBrowseDraw(list);
  93 }
  94
  95 function cnBrowseClearPrev(list) {
  96         cnBrowseCache.prev = null;
  97         cnBrowseShowPrev = false;
  98         _cnBrowseDraw(list);
  99 }
 100
 101 /* cache next and previous calls unless they are
 102 needed immediately */
 103 function cnBrowseCacheMe(r) {
 104         var list = r.getResultObject();
 105         if( r.next ) {
 106                 cnBrowseCache.next = list;
 107                 if( cnBrowseShowNext ) {
 108                         cnBrowseClearNext(list);
 109                 }
 110
 111         } else if( r.prev ) {
 112                 cnBrowseCache.prev = list;
 113                 if( cnBrowseShowPrev )  {
 114                         cnBrowseClearPrev(list);
 115                 }
 116         }
 117 }
 118
 119
 120 function cnBrowseDraw( r ) {
 121         var list = r.getResultObject();
 122         _cnBrowseDraw(list);
 123 }
 124
 125
 126 var cnTbody;
 127 var cnRowT;
 128 var cnTdT;
 129 function _cnBrowseDraw( list ) {
 130
 131         if(!cnTbody) {
 132                 cnTbody = $('cn_tbody');
 133                 cnRowT = $('cn_browse_row');
 134                 cnTdT = cnRowT.removeChild($('cn_browse_td'));
 135                 cnTbody.removeChild(cnRowT);
 136         }
 137         removeChildren(cnTbody);
 138
 139         var counter = 1;
 140         var currentRow = cnRowT.cloneNode(true);
 141         cnTbody.appendChild(currentRow);
 142
 143         for( var idx in list ) {
 144
 145
 146                 var currentTd = cnTdT.cloneNode(true);
 147                 currentRow.appendChild(currentTd);
 148
 149                 var td = cnTdT.cloneNode(true);
 150                 var label       = list[idx][0];
 151                 var lib         = list[idx][1];
 152                 var record      = list[idx][2];
 153                 var id          = list[idx][3];
 154
 155                 if( idx == 0 ) { cnBrowseTopCn = label; cnBrowseTopId = id; }
 156                 cnBrowseBottomCn = label;
 157                 cnBrowseBottomId = id;
 158
 159                 var cn_td                       = $n(currentTd, 'cn_browse_cn');
 160                 var lib_td                      = $n(currentTd, 'cn_browse_lib');
 161                 var title_td            = $n(currentTd, 'cn_browse_title');
 162                 var author_td           = $n(currentTd, 'cn_browse_author');
 163                 var pic_td                      = $n(currentTd, 'cn_browse_pic');
 164
 165                 cn_td.appendChild(text(label));
 166                 lib_td.appendChild(text(findOrgUnit(lib).name()));
 167
 168                 var req = new Request( FETCH_RMODS, record );
 169                 req.request.title_td            = title_td;
 170                 req.request.author_td   = author_td;
 171                 req.request.pic_td              = pic_td;
 172                 req.callback( cnBrowseDrawTitle );
 173                 req.send();
 174
 175
 176                 if( counter++ % 3 == 0 ) {
 177                         counter = 1;
 178                         currentRow = cnRowT.cloneNode(true);
 179                         cnTbody.appendChild(currentRow);
 180                 }
 181         }
 182         cnBrowseGrabNext();
 183         cnBrowseGrabPrev();
 184 }
 185
 186 function cnBrowseDrawTitle(r) {
 187         var mods = r.getResultObject();
 188
 189         buildTitleDetailLink(mods, r.title_td);
 190         buildSearchLink(STYPE_AUTHOR, mods.author(), r.author_td);
 191         r.pic_td.setAttribute("src", buildISBNSrc(cleanISBN(mods.isbn())));
 192
 193         var args = {};
 194         args.page = RDETAIL;
 195         args[PARAM_OFFSET] = 0;
 196         args[PARAM_RID] = mods.doc_id();
 197         args[PARAM_MRID] = 0;
 198         r.pic_td.parentNode.setAttribute("href", buildOPACLink(args));
 199 }
 200