Open-ILS/src/extras/opensearchportal.html

   1 <html>
   2         <head>
   3                 <title>mikers experimental opensearch portal</title>
   4                 <style>
   5
   6 * {
   7         font-family: verdana,arial,helvetica,sans-serif;
   8         font-size: small;
   9 }
  10
  11 #result_sources a {
  12         font-size: 8px;
  13         color: grey;
  14         text-decoration: none;
  15 }
  16
  17 td {
  18         vertical-align: top;
  19 }
  20
  21 caption {
  22         border: solid black 1px;
  23 }
  24
  25 .header {
  26         border: solid lightblue 1px;
  27         background-color: lightblue;
  28 }
  29
  30 a {
  31         color: blue;
  32         text-decoration: none;
  33 }
  34
  35 a:hover {
  36         color: blue;
  37         text-decoration: underline;
  38 }
  39
  40 a:active {
  41         color: red;
  42         text-decoration: underline;
  43 }
  44
  45 a:visited {
  46         color: blue;
  47         text-decoration: none;
  48 }
  49
  50 .title_link {
  51         font-size: medium;
  52         font-weight: bold;
  53 }
  54
  55 .desc_text {
  56         font-size: small;
  57 }
  58
  59 .hide {
  60         color: lightgray;
  61 }
  62
  63 .col_tab {
  64         border-collapse: collapse;
  65         border: solid gray 1px;
  66 }
  67
  68 .res_table {
  69         border-collapse: collapse;
  70 }
  71
  72 #col_res {
  73         max-width: 300px !important;
  74         min-width: 200px !important;
  75 }
  76
  77 #int_res {
  78         max-width: 100% !important;
  79 }
  80
  81 #int_res_hide {
  82         max-width: 100% !important;
  83         min-width: 400px !important;
  84 }
  85
  86 .res_tr {
  87         border-bottom: 1px dashed darkgrey;
  88 }
  89
  90 .noshow {
  91         display: none;
  92         visibility: hidden;
  93 }
  94
  95                 </style>
  96                 <script>
  97
  98 var isIE = false;
  99
 100 function create_requestor () {
 101         var req;
 102         try {
 103                 req = new ActiveXObject("Msxml2.XMLHTTP");
 104                 isIE = true;
 105         } catch (e) {
 106                 try {
 107                         req = new ActiveXObject("Microsoft.XMLHTTP");
 108                         isIE = true;
 109                 } catch (E) {
 110                         req = false;
 111                 }
 112         }
 113
 114         if (!req && typeof XMLHttpRequest!='undefined') {
 115                 req = new XMLHttpRequest();
 116         }
 117
 118         if(!req) {
 119                 alert("NEEDS NEWER JAVASCRIPT for XMLHTTPRequest()");
 120                 return null;
 121         }
 122
 123         return req;
 124 }
 125
 126 var proxy = 'http://gapines.org/opensearch/?fetch=';
 127
 128 var images = [];
 129 var search_templates = [];
 130 var search_urls = {};
 131 var rel_scales = {};
 132
 133 var current_startPage = 1;
 134 var current_startIndex = 1;
 135 var current_count = 5;
 136
 137 function opensearch ( term, reset ) {
 138
 139         if (reset) {
 140                 current_startPage = 1;
 141                 rel_scales = {};
 142         }
 143
 144         document.getElementById('next_button').className = 'hide';
 145
 146         if (current_startPage == 1)
 147                 document.getElementById('prev_button').className = 'hide';
 148         else
 149                 document.getElementById('prev_button').className = '';
 150
 151         var tot = document.getElementById('total');
 152         while (tot.lastChild)
 153                         tot.removeChild(tot.lastChild);
 154
 155         var src = document.getElementById('result_sources');
 156         while (src.lastChild)
 157                         src.removeChild(src.lastChild);
 158
 159         document.getElementById('int_res_hide').className = 'noshow';
 160         document.getElementById('col_res_hide').className = 'noshow';
 161
 162         var tab = document.getElementById('int_res');
 163         while (tab.lastChild)
 164                         tab.removeChild(tab.lastChild);
 165
 166         tab = document.getElementById('col_res');
 167         while (tab.lastChild)
 168                         tab.removeChild(tab.lastChild);
 169
 170         search_count = 0;
 171
 172         var sources = new Array();
 173         var selector = document.getElementsByName('source');
 174         for (var i = 0; i < selector.length; i++) {
 175                 if (selector[i].checked) {
 176                         sources.push(selector[i].value);
 177                 }
 178         }
 179
 180         search_templates = [];
 181         for (var i in sources) {
 182                 create_search( sources[i] );
 183         }
 184
 185         current_startIndex = (current_count * (current_startPage - 1)) + 1;
 186
 187         search_urls = [];
 188         for (var i in search_templates) {
 189                 if (!search_templates[i])
 190                         continue;
 191
 192                 if (!rel_scales[i])
 193                         rel_scales[i] = 0;
 194
 195                 var url = search_templates[i].replace(/\{searchTerms\}/,encodeURIComponent(term));
 196                 url = url.replace(/\{startPage\}/,current_startPage);
 197                 url = url.replace(/\{startIndex\}/,current_startIndex);
 198                 url = url.replace(/\{count\}/,current_count);
 199                 url = url.replace(/\{relevanceScale}/,rel_scales[i]);
 200                 search_urls[i] = proxy + encodeURIComponent(url);
 201
 202                 src.innerHTML += '<a href="' + url + '">' + url + '</a><br>';
 203         }
 204
 205         for (var i in search_urls) {
 206                 if (!search_templates[i])
 207                         continue;
 208
 209                 perform_search(i);
 210         }
 211
 212         document.getElementById('page_label').innerHTML = current_startPage;
 213 }
 214
 215 function perform_search ( source ) {
 216         var req = create_requestor();
 217
 218         req.onreadystatechange = function () {
 219                 if (req.readyState != 4)
 220                         return;
 221
 222                 var xml = req.responseXML;
 223
 224                 var desc  = getElementTextNS('','description',xml,0);
 225                 var xml_link  = getElementTextNS('','link',xml,0);
 226
 227                 var total  = getElementFloatNS('openSearch','totalResults',xml,0);
 228                 var integratible = (getElementNS('openIll','relevance',xml,0) != null);
 229                 var scale = getElementFloatNS('openIll','relevanceScale',xml,0);
 230
 231                 rel_scales[source]  = scale;
 232
 233                 var current_tot = getElementFloatNS('','span',document.getElementById('total').parentNode,0);
 234                 var tot = document.getElementById('total');
 235
 236                 if (!current_tot)
 237                         current_tot = 0;
 238
 239                 if (total > (current_startPage * current_count))
 240                         document.getElementById('next_button').className = '';
 241
 242                 current_tot += total
 243                 tot.innerHTML = current_tot;
 244
 245                 var list = xml.getElementsByTagName('item');
 246                 for (var i = 0; i < list.length; i++) {
 247
 248                         if ( typeof list[i] != 'object')
 249                                         continue;
 250
 251                         var tab;
 252                         if (!integratible) {
 253                                 tab = document.getElementById('col_res');
 254                                 document.getElementById('col_res_hide').className = '';
 255                                 var col = document.getElementById(source);
 256                                 if (!col) {
 257                                         var row = tab.rows[0];
 258                                         if (!row)
 259                                                 row = tab.insertRow(0);
 260
 261                                         col = document.createElement('td');
 262                                         col.setAttribute('id',source);
 263                                         row.appendChild(col);
 264
 265                                         tab = document.createElement('table');
 266                                         tab.setAttribute('valign','top');
 267                                         tab.setAttribute('class','col_tab');
 268
 269                                         var cap = document.createElement('caption');
 270                                         tab.appendChild(cap);
 271                                         cap.innerHTML = desc + ' -- <a href="' + xml_link + '">XML</a>';
 272
 273                                         col.appendChild(tab);
 274
 275                                         var per = parseInt(100 / (search_urls.length * 2)) - 1;
 276                                         col.setAttribute('valign','top');
 277                                         col.setAttribute('width', + per + '%');
 278
 279                                 } else {
 280                                         tab = col.firstChild;
 281                                 }
 282                         } else {
 283                                 tab = document.getElementById('int_res');
 284                                 document.getElementById('int_res_hide').className = '';
 285                         }
 286
 287                         if (!tab.rows.length) {
 288                                 add_result_row(tab, 0, list[i], source);
 289                         } else {
 290                                 for (var j = 0; j < tab.rows.length; j++) {
 291                                         if ( typeof tab.rows[j] != 'object')
 292                                                 continue;
 293
 294                                         var rank;
 295                                         try {
 296                                                 rank = getElementFloatNS('openIll','relevance',list[i],0);
 297                                         } catch (e) {
 298                                                 alert("error getting float relevance: " + e);
 299                                                 rank = 0;
 300                                         }
 301
 302                                         if ( rank < parseFloat(tab.rows[j].firstChild.firstChild.textContent) ) {
 303                                                 if ( (j + 1) == tab.rows.length) {
 304                                                         add_result_row(tab, tab.rows.length, list[i], source);
 305                                                         break
 306                                                 }
 307                                                 continue;
 308                                         }
 309                                         add_result_row(tab, j, list[i], source);
 310                                         break;
 311                                 }
 312                         }
 313                 }
 314         };
 315
 316         req.open('GET', proxy + encodeURIComponent(search_urls[source]), true);
 317         req.send(null);
 318 }
 319
 320
 321 // retrieve float of an XML document element, including
 322 // elements using namespaces
 323 function getElementFloatNS(prefix, local, parentElem, index) {
 324     var result = getElementNS(prefix, local, parentElem, index);
 325     if (result) {
 326         // get text, accounting for possible
 327         // whitespace (carriage return) text nodes
 328         if (result.childNodes.length > 1) {
 329             return parseFloat(result.childNodes[1].nodeValue);
 330         } else {
 331             return parseFloat(result.textContent);
 332         }
 333     } else {
 334         return 0;
 335     }
 336 }
 337
 338 function getElementNS(prefix, local, parentElem, index) {
 339     var result = "";
 340     if (prefix && isIE) {
 341         // IE/Windows way of handling namespaces
 342         return parentElem.getElementsByTagName(prefix + ":" + local)[index];
 343     } else {
 344         // the namespace versions of this method
 345         // (getElementsByTagNameNS()) operate
 346         // differently in Safari and Mozilla, but both
 347         // return value with just local name, provided
 348         // there aren't conflicts with non-namespace element
 349         // names
 350         return parentElem.getElementsByTagName(local)[index];
 351     }
 352 }
 353
 354 // retrieve text of an XML document element, including
 355 // elements using namespaces
 356 function getElementTextNS(prefix, local, parentElem, index) {
 357     var result = getElementNS(prefix, local, parentElem, index);
 358     if (result) {
 359         // get text, accounting for possible
 360         // whitespace (carriage return) text nodes
 361         if (result.childNodes.length > 1) {
 362             return result.childNodes[1].nodeValue;
 363         } else {
 364             return result.firstChild.nodeValue;
 365         }
 366     } else {
 367         return '';
 368     }
 369 }
 370
 371 function add_result_row (tab, index, xml, source) {
 372         var img = images[source];
 373         var rank,title,tlink,desc;
 374
 375         try {
 376                 rank = getElementFloatNS('openIll','relevance',xml,0);
 377         } catch (e) {
 378                 alert("error getting relevance: " + e);
 379                 rank = '0';
 380         }
 381
 382         try {
 383                 title = getElementTextNS('','title',xml,0);
 384         } catch (e) {
 385                 title = '';
 386         }
 387
 388         try {
 389                 tlink = getElementTextNS('','link',xml,0);
 390         } catch (e) {
 391                 tlink = '';
 392         }
 393
 394         try {
 395                 description = getElementTextNS('','description',xml,0);
 396                 if (description.length > 1024)
 397                         description = description.substring(1,1024);
 398         } catch (e) {
 399                 description = '';
 400         }
 401
 402         var row = tab.insertRow(index);
 403         row.className = 'res_tr';
 404         row.innerHTML = '<td style="padding: 4px"><div style="display: none; visibility: hidden;">' + rank +
 405                                                  '</div><span class="title_link"><a href="' + tlink + '">' + title +
 406                                                  '</a></span><br/><span class="desc_text">' + description + '</span></td>' +
 407                                                  '<td><img title="' + parseInt(rank) + '% Relevant" width="32" height="32" src="' + img + '"></td>';
 408 }
 409
 410 function create_search ( s ) {
 411         var req = create_requestor();
 412
 413         req.open('GET',proxy +  encodeURIComponent(s),false);
 414         req.send(null);
 415
 416         try {
 417                 var xml = req.responseXML;
 418                 search_templates[s] = xml.getElementsByTagName('Url')[0].textContent;
 419                 var i =  xml.getElementsByTagName('Image');
 420                 if (i.length)
 421                         images[s] = i[0].textContent;
 422         } catch (e) {
 423                 alert('BAD XML!\n\n' + e + '\n\n' + req.responseText);
 424                 search_templates[s] = null;
 425                 images[s] = null;
 426         }
 427
 428 }
 429
 430                 </script>
 431         </head>
 432         <body>
 433                 <br/>
 434                 <form>
 435                 <table style="border-collapse: collapse; margin: 5px;" width="100%">
 436                         <tr style="border-bottom: dotted black 1px;" valign="top">
 437                                 <td align="right">Keyword Search: </td>
 438                                 <td align="left">
 439                                         <input type="text" id="term" value="javascript"/>
 440                                         <input type="submit" value="Go!" onclick="opensearch(document.getElementById('term').value, true); return false;"/>
 441                                 </td>
 442                                 <td align="left">Hits per Source for each page:
 443                                         <select onchange="current_count=this.options[this.selectedIndex].value;">
 444                                                 <option value="5" selected>5</option>
 445                                                 <option value="10">10</option>
 446                                                 <option value="25">25</option>
 447                                         </select>
 448                                 </td>
 449                         </tr>
 450                         <tr style="border-bottom: dotted black 1px;" valign="top">
 451                                 <td align="right">Sources: </td>
 452                                 <td colspan=2>
 453                                         <table width="100%" style="border-collapse: collapse;">
 454                                                 <tr>
 455                                                         <td>
 456                                                                 <label class="source_input">
 457                                                                         <input
 458                                                                                 name="source"
 459                                                                                 type="checkbox"
 460                                                                                 value="http://gapines.org/opensearch.xml"
 461                                                                                 checked>GPLS Pines
 462                                                                 </label>
 463                                                         </td>
 464                                                         <td>
 465                                                                 <label class="source_input">
 466                                                                         <input
 467                                                                                 name="source"
 468                                                                                 type="checkbox"
 469                                                                                 value="http://rsinger.library.gatech.edu/opensearch/osdd-gil.xml"
 470                                                                                 checked>GIL Universal Catalog
 471                                                                 </label>
 472                                                         </td>
 473                                                         <td>
 474                                                                 <label class="source_input">
 475                                                                         <input
 476                                                                                 name="source"
 477                                                                                 type="checkbox"
 478                                                                                 value="http://search.athenscounty.lib.oh.us/cgi-bin/koha/opensearchdescription">NPL/Koha
 479                                                                 </label>
 480                                                         </td>
 481                                                         <td>
 482                                                                 <label class="source_input">
 483                                                                         <input
 484                                                                                 name="source"
 485                                                                                 type="checkbox"
 486                                                                                 value="http://www.koders.com/search/KodersSourceCodeSearchDescription.xml">Koders Source Code
 487                                                                 </label>
 488                                                         </td>
 489                                                         <td>
 490                                                 </tr>
 491                                                 <tr>
 492                                                         <td>
 493                                                                 <label class="source_input">
 494                                                                         <input
 495                                                                                 name="source"
 496                                                                                 type="checkbox"
 497                                                                                 value="http://cnx.rice.edu/content/opensearchdescription">rice.edu Connexions
 498                                                                 </label>
 499                                                         </td>
 500                                                         <td>
 501                                                                 <label class="source_input">
 502                                                                         <input
 503                                                                                 name="source"
 504                                                                                 type="checkbox"
 505                                                                                 value="http://redlightgreen.com/ucwprod/web/opensearchDescription.xml">RedLightGreen
 506                                                                 </label>
 507                                                         </td>
 508                                                         <td>
 509                                                                 <label class="source_input">
 510                                                                         <input
 511                                                                                 name="source"
 512                                                                                 type="checkbox"
 513                                                                                 value="http://www.itpapers.com/itpaperssearchdescription.xml">ITPapers
 514                                                                 </label>
 515                                                         </td>
 516                                         <!-- <input name="source" type="checkbox" value="http://www.webdevref.com/blog/opensearchdescription.xml">WebDefRef -->
 517                                                 </tr>
 518                                         </table>
 519                                 </td>
 520                         </tr>
 521                         <tr>
 522                                 <td>Total results: </td>
 523                                 <td colspan=2 id="total"></td>
 524                         </tr>
 525                         <tr>
 526                                 <td>Current page: </td>
 527                                 <td id="page_label"></td>
 528                                 <td>
 529                                         <button
 530                                                 class='hide'
 531                                                 id='prev_button'
 532                                                 onclick="
 533                                                         if (this.className != 'hide') {
 534                                                                 current_startPage -= 1;
 535                                                                 opensearch(document.getElementById('term').value);
 536                                                         }
 537                                                         return false;">Previous Page
 538                                         </button> ...
 539                                         <button
 540                                                 class='hide'
 541                                                 id='next_button'
 542                                                 onclick="
 543                                                         if (this.className != 'hide') {
 544                                                                 current_startPage += 1;
 545                                                                 opensearch(document.getElementById('term').value);
 546                                                         }
 547                                                         return false;">Next Page
 548                                         </button>
 549                                 </td>
 550                         </tr>
 551                 </table>
 552                 </form>
 553
 554                 <hr/>
 555                 <br/>
 556                 <table id="results" width="100%">
 557                         <tr>
 558                                 <td id="int_res_hide" class="noshow" width="100%">
 559                                         <table width="100%">
 560                                                 <caption class="header">Merged search results</caption>
 561                                                 <tr>
 562                                                         <td width="100%">
 563                                                                 <table id='int_res' class="res_table" width="100%"></table>
 564                                                         </td>
 565                                                 </tr>
 566                                         </table>
 567                                 </td>
 568                                 <td id='col_res_hide' class="noshow">
 569                                         <table>
 570                                                 <caption class="header">Unranked search results</caption>
 571                                                 <tr>
 572                                                         <td>
 573                                                                 <table id='col_res' class="res_table"></table>
 574                                                         </td>
 575                                                 </tr>
 576                                         </table>
 577                                 </td>
 578                         </tr>
 579                 </table>
 580                 <div id="result_sources"></div>
 581                 <br/>
 582         </body>
 583 </html>