opac/skin/condense_js/js/sidebar_extras.js

   1 \r
   2 /* captures extraneous info from each record */\r
   3 \r
   4 var subjectCache = {};\r
   5 var authorCache = {};\r
   6 var seriesCache = {};\r
   7 \r
   8 function resultBuildCaches(records) {\r
   9         for( var r in records ) {\r
  10                 var rec = records[r];\r
  11                 for( var s in rec.subject() ) \r
  12                         subjectCache[s] == null ? subjectCache[s] = 1 : subjectCache[s]++;\r
  13                 authorCache[rec.author()] = 1;\r
  14                 for( var s in rec.series() ) seriesCache[rec.series()[s]] = 1;\r
  15         }\r
  16 }\r
  17 \r
  18 function resultSortSubjects(a, b) { return -(a.count - b.count); } /* sort in reverse */\r
  19 function resultDrawSubjects() {\r
  20 \r
  21         var subjs = [];\r
  22         for( var s in subjectCache )\r
  23                 subjs.push( { sub : s, count : subjectCache[s] } );\r
  24         subjs.sort(resultSortSubjects);\r
  25 \r
  26         var ss = [];\r
  27         for( var s in subjs ) ss.push(subjs[s].sub);\r
  28 \r
  29         resultDrawSidebarTrees( \r
  30                 STYPE_SUBJECT, \r
  31                 "subjectSidebarTree", ss, \r
  32                 $("subject_tree_sidebar"), \r
  33                 $("subject_sidebar_tree_div") );\r
  34 }\r
  35 \r
  36 function resultDrawAuthors() {\r
  37         var auths = new Array();\r
  38         for( var s in authorCache ) auths.push(s);\r
  39 \r
  40         resultDrawSidebarTrees( \r
  41                 STYPE_AUTHOR, \r
  42                 "authorSidebarTree", auths.sort(), \r
  43                 $("author_tree_sidebar"), \r
  44                 $("author_sidebar_tree_div") );\r
  45 }\r
  46 \r
  47 function resultDrawSeries() {\r
  48         var sers = new Array();\r
  49         for( var s in seriesCache ) sers.push(s);\r
  50         resultDrawSidebarTrees( \r
  51                 STYPE_SERIES, \r
  52                 "seriesSidebarTree", sers.sort(), \r
  53                 $("series_tree_sidebar"), \r
  54                 $("series_sidebar_tree_div") );\r
  55 }\r
  56 \r
  57 var IESux = true;\r
  58 \r
  59 function resultDrawSidebarTrees( stype, treeName, items, wrapperNode, destNode ) {\r
  60         if(findCurrentPage()=="rdetail") return;\r
  61         eval("tree = " + treeName);\r
  62 \r
  63         var xrefCache = [];\r
  64         var found = false;\r
  65         var x = 0;\r
  66         for( var i in items ) {\r
  67 \r
  68                 if(isNull(items[i])) continue;\r
  69 \r
  70                 /* again, IE is a turd */\r
  71                 if(IE) { if(x++ > 5) break; }\r
  72                 else { if(x++ > 7) break; }\r
  73 \r
  74                 found = true;\r
  75 \r
  76                 var item = normalize(truncate(items[i], 65));\r
  77                 var args = {};\r
  78                 var href = resultQuickLink( items[i], stype );\r
  79                 tree.addNode( stype + "_" + items[i], treeName + 'Root', item, href );\r
  80 \r
  81 //              if( !IE ) resultFireXRefReq(treeName, stype, items[i]);\r
  82 \r
  83                 var a = {};\r
  84                 a.type = stype;\r
  85                 a.term = item;\r
  86                 xrefCache.push(a);\r
  87         }\r
  88 \r
  89         if(found) {\r
  90                 unHideMe(wrapperNode);\r
  91 //              if(IE) resultFireXRefSingle(treeName, xrefCache, stype);\r
  92                 /* XXX */ // disabled auth lookups for now\r
  93 \r
  94                 if( DO_AUTHORITY_LOOKUPS ) {\r
  95                         resultFireXRefBatch(treeName, xrefCache, stype);\r
  96                 }\r
  97         }\r
  98 }\r
  99 \r
 100 /* XXX */\r
 101 function resultFireXRefBatch(treeName, xrefCache, stype) {\r
 102         var query = [];\r
 103         for( var i = 0; i != xrefCache.length; i++ ) {\r
 104                 var topic = xrefCache[i];\r
 105                 query.push( [ topic.type, topic.term ] );\r
 106         }\r
 107         var req = new Request(FETCH_CROSSREF_BATCH, query);\r
 108         var tree;\r
 109         eval('tree=' + treeName);\r
 110         req.request._tree = tree;\r
 111         req.request._stype = stype;\r
 112         req.callback(resultRenderXRefTree);\r
 113         req.send();\r
 114 }\r
 115 \r
 116 var xrefCacheIndex = {};\r
 117 xrefCacheIndex['subject'] = 0;\r
 118 xrefCacheIndex['author'] = 0;\r
 119 xrefCacheIndex['series'] = 0;\r
 120 \r
 121 function resultHandleXRefResponse(r) {\r
 122         resultFireXRefSingle( r._treename, r._cache, r._stype );\r
 123         resultAppendCrossRef(r);\r
 124 }\r
 125 \r
 126 \r
 127 function resultFireXRefSingle( treeName, xrefCache, stype ) {\r
 128         var i = xrefCacheIndex[stype]++;\r
 129         if(xrefCache[i] == null) return;\r
 130         var item = xrefCache[i].term;\r
 131         var tree;\r
 132         eval('tree=' + treeName);\r
 133         var req = new Request(FETCH_CROSSREF, stype, item);\r
 134         req.request._tree = tree;\r
 135         req.request._item = item;\r
 136         req.request._stype = stype;\r
 137         req.request._cache = xrefCache;\r
 138         req.request._treename = treeName;\r
 139         req.callback(resultHandleXRefResponse);\r
 140         req.send();\r
 141 }\r
 142 \r
 143 function resultFireXRefReq( treeName, stype, item ) {\r
 144         var tree;\r
 145         eval('tree=' + treeName);\r
 146         var req = new Request(FETCH_CROSSREF, stype, item);\r
 147         req.request._tree = tree;\r
 148         req.request._item = item;\r
 149         req.request._stype = stype;\r
 150         req.callback(resultAppendCrossRef);\r
 151         req.send();\r
 152 }\r
 153 \r
 154 \r
 155 function resultQuickLink( term, type ) {\r
 156         var args = {};\r
 157         if(SHOW_MR_DEFAULT) {\r
 158                 args.page = MRESULT;\r
 159         } else {\r
 160                 args.page = RRESULT;\r
 161                 args[PARAM_RTYPE] = type;\r
 162         }\r
 163         args[PARAM_OFFSET] = 0;\r
 164         args[PARAM_TERM] = term;\r
 165         args[PARAM_STYPE] = type;\r
 166         return buildOPACLink(args);\r
 167 }\r
 168 \r
 169 /* XXX */\r
 170 function resultRenderXRefTree(r) {\r
 171         var tree = r._tree;\r
 172         var res = r.getResultObject();\r
 173         var stype = r._stype;\r
 174 \r
 175         for( var c in res ) {\r
 176                 var cls = res[c];\r
 177                 for( var t in cls ) {\r
 178                         var term = res[c][t];\r
 179                         var froms = term['from'];\r
 180                         var alsos = term['also'];\r
 181                         var total = 0;\r
 182 \r
 183                         for( var i = 0; (total++ < 5 && i < froms.length); i++ ) {\r
 184                                 var string = normalize(truncate(froms[i], 45));\r
 185                                 if($(stype + '_' + froms[i])) continue;\r
 186                                 tree.addNode(stype + '_' + froms[i], \r
 187                                         stype + '_' + t, string, resultQuickLink(froms[i],stype));\r
 188                         }\r
 189                         for( var i = 0; (total++ < 10 && i < alsos.length); i++ ) {\r
 190                                 var string = normalize(truncate(alsos[i], 45));\r
 191                                 if($(stype + '_' + alsos[i])) continue;\r
 192                                 tree.addNode(stype + '_' + alsos[i], \r
 193                                         stype + '_' + t, string, resultQuickLink(alsos[i],stype));\r
 194                         }\r
 195                 }\r
 196         }\r
 197 }\r
 198 \r
 199 \r
 200 /* Addes the see-from/see-also entries for this subject item */\r
 201 function resultAppendCrossRef(r) {\r
 202         var tree                = r._tree\r
 203         var item                = r._item\r
 204         var stype       = r._stype;\r
 205         var result      = r.getResultObject();\r
 206         if(!result) return;\r
 207         var froms       = result['from'];\r
 208         var alsos       = result['also'];\r
 209 \r
 210         var total = 0;\r
 211 \r
 212         for( var i = 0; (total++ < 5 && i < froms.length); i++ ) \r
 213                 resultAddXRefItem( tree, item, stype, froms, i );\r
 214 \r
 215         for( var i = 0; (total++ < 10 && i < alsos.length); i++ ) \r
 216                 resultAddXRefItem( tree, item, stype, alsos, i );\r
 217 }\r
 218 \r
 219 /**\r
 220  * Adds a single entry into the see-from/also sidebar tree \r
 221  */\r
 222 var collectedStrings = [];\r
 223 function resultAddXRefItem(tree, rootItem, stype, arr, idx) {\r
 224 \r
 225         var string = normalize(truncate(arr[idx], 45));\r
 226 \r
 227         if( string == rootItem ) return;\r
 228 \r
 229         if( grep( collectedStrings, \r
 230                 function(a) { return (a == string); }) ) return;\r
 231 \r
 232         if($(stype + '_' + arr[idx])) return;\r
 233 \r
 234         tree.addNode(stype + '_' + arr[idx], \r
 235                 stype + '_' + rootItem, string, resultQuickLink(arr[idx],stype));\r
 236 \r
 237         collectedStrings.push(string);\r
 238 }\r
 239 \r
 240 \r
 241 \r
 242 \r
 243 \r
 244 \r