1 /*! MKWS, the MasterKey Widget Set.
2 * Copyright (C) 2013-2014 Index Data
3 * See the file LICENSE for details
9 // Set up global mkws object. Contains truly global state such as SP
10 // authentication, and a hash of team objects, indexed by team-name.
12 // We set it as a property of window to make the global explicit as
13 // some things complain about an implicit global.
15 $: $, // Our own local copy of the jQuery object
17 authenticating: false,
22 widgetType2function: {},
28 "Subjects": "Schlagwörter",
29 "Sources": "Daten und Quellen",
30 "source": "datenquelle",
31 "Facets": "Termlisten",
33 "Prev": "Zurück",
35 "Sort by": "Sortieren nach",
36 "and show": "und zeige",
37 "per page": "pro Seite",
38 "Displaying": "Zeige",
46 "Subject": "Schlagwort",
47 "subject": "schlagwort",
49 "Records": "Datensätze",
50 "Targets": "Datenbanken",
56 "Authors": "Forfattere",
60 "Facets": "Termlists",
61 "Next": "Næste",
63 "Search": "Søg",
64 "Sort by": "Sorter efter",
66 "per page": "per side",
67 "Displaying": "Viser",
72 "Author": "Forfatter",
73 "author": "forfatter",
77 "Location": "Lokation",
86 // We may be using a separate copy
87 if (typeof(mkws_jQuery) !== "undefined") {
93 // It's ridiculous that JSNLog doesn't provide this
94 mkws.stringToLevel = function(s) {
96 return JL.getTraceLevel();
97 } else if (s === 'debug') {
98 return JL.getDebugLevel();
99 } else if (s === 'info') {
100 return JL.getInfoLevel();
101 } else if (s === 'warn') {
102 return JL.getWarnLevel();
103 } else if (s === 'error') {
104 return JL.getErrorLevel();
105 } else if (s === 'fatal') {
106 return JL.getFatalLevel();
108 throw "bad log-level '" + s + "'";
112 mkws.logger = JL('mkws');
113 var consoleAppender = JL.createConsoleAppender('consoleAppender');
114 mkws.logger.setOptions({ "appenders": [consoleAppender],
115 "level": mkws.stringToLevel(mkws.log_level) });
118 function _log(fn, string) {
122 // you need to disable use strict at the top of the file!!!
123 if (mkws.log_level >= 3) {
124 // Works in Chrome; not sure about elsewhere
126 } else if (mkws.log_level >= 2) {
129 fn.call(mkws.logger, string);
133 mkws.trace = function(x) { _log(mkws.logger.trace, x) };
134 mkws.debug = function(x) { _log(mkws.logger.debug, x) };
135 mkws.info = function(x) { _log(mkws.logger.info, x) };
136 mkws.warn = function(x) { _log(mkws.logger.warn, x) };
137 mkws.error = function(x) { _log(mkws.logger.error, x) };
138 mkws.fatal = function(x) { _log(mkws.logger.fatal, x) };
141 // Translation function.
142 mkws.M = function(word) {
143 var lang = mkws.config.lang;
145 if (!lang || !mkws.locale_lang[lang])
148 return mkws.locale_lang[lang][word] || word;
152 // This function is taken from a StackOverflow answer
153 // http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript/901144#901144
154 mkws.getParameterByName = function(name, url) {
155 if (!url) url = location.search;
156 name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
157 var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
158 results = regex.exec(url);
159 return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
163 mkws.registerWidgetType = function(name, fn) {
164 if(mkws._old2new.hasOwnProperty(name)) {
165 mkws.warn("registerWidgetType old widget name: " + name + " => " + mkws._old2new[name]);
166 name = mkws._old2new[name];
169 mkws.widgetType2function[name] = fn;
170 mkws.info("registered widget-type '" + name + "'");
173 mkws.promotionFunction = function(name) {
174 return mkws.widgetType2function[name];
178 mkws.setMkwsConfig = function(overrides) {
179 // Set global log_level flag early so that _log() works
180 var tmp = overrides.log_level;
181 if (typeof(tmp) !== 'undefined') mkws.log_level = tmp;
183 var config_default = {
184 use_service_proxy: true,
185 pazpar2_url: undefined,
186 pp2_hostname: "sp-mkws.indexdata.com",
187 pp2_path: "service-proxy/",
188 service_proxy_auth: undefined,
189 sp_auth_path: undefined,
190 sp_auth_query: "command=auth&action=perconfig",
191 sp_auth_credentials: undefined,
193 sort_options: [["relevance"], ["title:1", "title"], ["date:0", "newest"], ["date:1", "oldest"]],
194 perpage_options: [10, 20, 30, 50],
195 sort_default: "relevance",
197 show_lang: true, /* show/hide language menu */
198 show_sort: true, /* show/hide sort menu */
199 show_perpage: true, /* show/hide perpage menu */
200 show_switch: true, /* show/hide switch menu */
201 lang_options: [], /* display languages links for given languages, [] for all */
202 facets: ["xtargets", "subject", "author"], /* display facets, in this order, [] for none */
203 responsive_design_width: undefined, /* a page with less pixel width considered as narrow */
204 log_level: 1, /* log level for development: 0..2 */
205 template_vars: {}, /* values that may be exposed to templates */
210 mkws.config = mkws.objectInheritingFrom(config_default);
211 for (var k in overrides) {
212 mkws.config[k] = overrides[k];
217 // This code is from Douglas Crockford's article "Prototypal Inheritance in JavaScript"
218 // http://javascript.crockford.com/prototypal.html
219 // mkws.objectInheritingFrom behaves the same as Object.create,
220 // but since the latter is not available in IE8 we can't use it.
222 mkws.objectInheritingFrom = function(o) {
229 // The following functions are dispatchers for team methods that
230 // are called from the UI using a team-name rather than implicit
232 mkws.switchView = function(tname, view) {
233 mkws.teams[tname].switchView(view);
236 mkws.showDetails = function(tname, prefixRecId) {
237 mkws.teams[tname].showDetails(prefixRecId);
240 mkws.limitTarget = function(tname, id, name) {
241 mkws.teams[tname].limitTarget(id, name);
244 mkws.limitQuery = function(tname, field, value) {
245 mkws.teams[tname].limitQuery(field, value);
248 mkws.limitCategory = function(tname, id) {
249 mkws.teams[tname].limitCategory(id);
252 mkws.delimitTarget = function(tname, id) {
253 mkws.teams[tname].delimitTarget(id);
256 mkws.delimitQuery = function(tname, field, value) {
257 mkws.teams[tname].delimitQuery(field, value);
260 mkws.showPage = function(tname, pageNum) {
261 mkws.teams[tname].showPage(pageNum);
264 mkws.pagerPrev = function(tname) {
265 mkws.teams[tname].pagerPrev();
268 mkws.pagerNext = function(tname) {
269 mkws.teams[tname].pagerNext();
273 mkws.pazpar2_url = function() {
274 if (mkws.config.pazpar2_url) {
275 mkws.info("using pre-baked pazpar2_url '" + mkws.config.pazpar2_url + "'");
276 return mkws.config.pazpar2_url;
278 var s = document.location.protocol + "//" + mkws.config.pp2_hostname + "/" + mkws.config.pp2_path;
279 mkws.info("generated pazpar2_url '" + s + "'");
285 // We put a session token in window.name, as it's the only place to
286 // keep data that is preserved across reloads and within-site
287 // navigation. pz2.js picks this up and uses it as part of the
288 // cookie-name, to ensure we get a new session when we need one.
290 // We want to use different sessions for different windows/tabs (so
291 // they don't receive each other's messages), different hosts and
292 // different paths on a host (since in general these will
293 // authenticate as different libraries). So the window name needs to
294 // include the hostname and the path from the URL, plus the token.
298 token = window.name.replace(/.*\//, '');
299 mkws.debug("Reusing existing window token '" + token + "'");
301 // Incredible that the standard JavaScript runtime doesn't define a
302 // unique windowId. Instead, we have to make one up. And since there's
303 // no global area shared between windows, the best we can do for
304 // ensuring uniqueness is generating a random ID and crossing our
307 // Ten chars from 26 alpha-numerics = 36^10 = 3.65e15 combinations.
308 // At one per second, it will take 116 million years to duplicate a token
309 token = Math.random().toString(36).slice(2, 12);
310 mkws.debug("Generated new window token '" + token + "'");
313 window.name = window.location.hostname + window.location.pathname + '/' + token;
314 mkws.info("Using window.name '" + window.name + "'");
317 // wrapper to provide local copy of the jQuery object.
319 var _old2new = { // Maps old-style widget names to new-style
320 'Authname': 'auth-name',
321 'ConsoleBuilder': 'console-builder',
322 'Coverart': 'cover-art',
323 'GoogleImage': 'google-image',
325 'MOTDContainer': 'motd-container',
326 'Perpage': 'per-page',
327 'SearchForm': 'search-form',
328 'ReferenceUniverse': 'reference-universe',
329 'Termlists': 'facets'
331 // Annoyingly, there is no built-in way to invert a hash
333 for (var key in _old2new) {
334 if(_old2new.hasOwnProperty(key)) {
335 _new2old[_old2new[key]] = key;
339 mkws._old2new = _old2new;
341 function handleNodeWithTeam(node, callback) {
342 // First branch for DOM objects; second branch for jQuery objects
343 var classes = node.className || node.attr('class');
345 // For some reason, if we try to proceed when classes is
346 // undefined, we don't get an error message, but this
347 // function and its callers, up several stack level,
348 // silently return. What a crock.
349 mkws.fatal("handleNodeWithTeam() called on node with no classes");
352 var list = classes.split(/\s+/)
355 for (var i = 0; i < list.length; i++) {
357 if (cname.match(/^mkws-team-/)) {
358 // New-style teamnames of the form mkws-team-xyz
359 teamName = cname.replace(/^mkws-team-/, '');
360 } else if (cname.match(/^mkwsTeam_/)) {
361 // Old-style teamnames of the form mkwsTeam_xyz
362 teamName = cname.replace(/^mkwsTeam_/, '');
363 } else if (cname.match(/^mkws-/)) {
364 // New-style names of the from mkws-foo-bar
365 type = cname.replace(/^mkws-/, '');
366 } else if (cname.match(/^mkws/)) {
367 // Old-style names of the form mkwsFooBar
368 var tmp = cname.replace(/^mkws/, '');
369 type = _old2new[tmp] || tmp.toLowerCase();
373 // Widgets without a team are on team "AUTO"
376 // Autosearch widgets don't join team AUTO if there is already an
377 // autosearch on the team or the team has otherwise gotten a query
378 if (node.getAttribute("autosearch")) {
379 if (mkws.autoHasAuto ||
380 mkws.teams["AUTO"] && mkws.teams["AUTO"].config["query"]) {
381 mkws.warn("AUTO team already has a query, using unique team");
384 mkws.autoHasAuto = true;
388 // Widgets on team "UNIQUE" get a random team
389 if (teamName === "UNIQUE") {
390 teamName = Math.floor(Math.random() * 100000000).toString();
393 callback.call(node, teamName, type);
397 function resizePage() {
398 var threshhold = mkws.config.responsive_design_width;
399 var width = $(window).width();
400 var from, to, method;
402 if ((mkws.width === undefined || mkws.width > threshhold) &&
403 width <= threshhold) {
404 from = "wide"; to = "narrow"; method = "hide";
405 } else if ((mkws.width === undefined || mkws.width <= threshhold) &&
406 width > threshhold) {
407 from = "narrow"; to = "wide"; method = "show";
412 mkws.info("changing from " + from + " to " + to + ": " + width);
413 for (var tname in mkws.teams) {
414 var team = mkws.teams[tname];
415 team.visitWidgets(function(t, w) {
416 var w1 = team.widget(t + "-container-" + from);
417 var w2 = team.widget(t + "-container-" + to);
423 w.node.appendTo(w2.node);
426 team.queue("resize-" + to).publish();
433 * Run service-proxy authentication in background (after page load).
434 * The username/password is configured in the apache config file
437 function authenticateSession(auth_url, auth_domain, pp2_url) {
438 mkws.authenticating = true;
439 mkws.info("service proxy authentication on URL: " + auth_url);
442 auth_domain = pp2_url.replace(/^(https?:)?\/\/(.*?)\/.*/, '$2');
443 mkws.info("guessed auth_domain '" + auth_domain + "' from pp2_url '" + pp2_url + "'");
446 var request = new pzHttpRequest(auth_url, function(err) {
447 alert("HTTP call for authentication failed: " + err)
451 request.get(null, function(data) {
452 mkws.authenticating = false;
453 if (!$.isXMLDoc(data)) {
454 alert("Service Proxy authentication response is not a valid XML document");
457 var status = $(data).find("status");
458 if (status.text() != "OK") {
459 var message = $(data).find("message");
460 alert("Service Proxy authentication response: " + status.text() + " (" + message.text() + ")");
464 mkws.info("service proxy authentication successful");
465 mkws.authenticated = true;
466 var authName = $(data).find("displayName").text();
467 // You'd think there would be a better way to do this:
468 var realm = $(data).find("realm:not(realmAttributes realm)").text();
469 for (var teamName in mkws.teams) {
470 mkws.teams[teamName].queue("authenticated").publish(authName, realm);
478 function runAutoSearches() {
479 mkws.info("running auto searches");
481 for (var teamName in mkws.teams) {
482 mkws.teams[teamName].queue("ready").publish();
487 function selectorForAllWidgets() {
488 if (mkws.config && mkws.config.scan_all_nodes) {
489 // This is the old version, which works by telling jQuery to
490 // find every node that has a class beginning with "mkws". In
491 // theory it should be slower than the class-based selector; but
492 // instrumentation suprisingly shows this is consistently
493 // faster. It also has the advantage that any widgets of
494 // non-registered types are logged as warnings rather than
496 return '[class^="mkws"],[class*=" mkws"]';
498 // This is the new version, which works by looking up the
499 // specific classes of all registered widget types and their
500 // resize containers. Because all it requires jQuery to do is
501 // some hash lookups in pre-built tables, it should be very
502 // fast; but it silently ignores widgets of unregistered types.
504 for (var type in mkws.widgetType2function) {
506 s += '.mkws-' + type;
507 s += ',.mkws-' + type + "-container-wide";
508 s += ',.mkws-' + type + "-container-narrow";
509 // Annoyingly, we also need to recognise old-style names
510 var oldtype = _new2old[type] || type.charAt(0).toUpperCase() + type.slice(1);
511 s += ',.mkws' + oldtype;
512 s += ',.mkws' + oldtype + "-Container-wide";
513 s += ',.mkws' + oldtype + "-Container-narrow";
520 function makeWidgetsWithin(level, node) {
521 if (node) var widgetNodes = node.find(selectorForAllWidgets());
522 else widgetNodes = $(selectorForAllWidgets());
523 // Return false if we parse no widgets
524 if (widgetNodes.length < 1) return false;
525 widgetNodes.each(function() {
526 handleNodeWithTeam(this, function(tname, type) {
527 var myTeam = mkws.teams[tname];
529 myTeam = mkws.teams[tname] = mkws.makeTeam($, tname);
532 var oldHTML = this.innerHTML;
533 var myWidget = mkws.makeWidget($, myTeam, type, this);
534 myTeam.addWidget(myWidget);
535 var newHTML = this.innerHTML;
536 if (newHTML !== oldHTML) {
537 myTeam.info("widget " + type + " HTML changed: reparsing");
538 makeWidgetsWithin(level+1, $(this));
546 // The second "rootsel" parameter is passed to jQuery and is a DOM node
547 // or a selector string you would like to constrain the search for widgets to.
549 // This function has no side effects if run again on an operating session,
550 // even if the element/selector passed causes existing widgets to be reparsed:
552 // (TODO: that last bit isn't true and we currently have to avoid reinitialising
553 // widgets, MKWS-261)
555 // * configuration is not regenerated
556 // * authentication is not performed again
557 // * autosearches are not re-run
558 mkws.init = function(message, rootsel) {
559 var greet = "MKWS initialised";
560 if (rootsel) greet += " (limited to " + rootsel + ")"
561 if (message) greet += " :: " + message;
564 // MKWS is not active until init() has been run against an object with widget nodes.
565 // We only set initial configuration when MKWS is first activated.
566 if (!mkws.isActive) {
567 var widgetSelector = selectorForAllWidgets();
568 if ($(widgetSelector).length < 1) {
569 mkws.warn("no widgets found");
573 // Initial configuration
574 mkws.autoHasAuto = false;
576 if (typeof mkws_config === 'undefined') {
577 mkws.info("setting empty config");
580 mkws.info("using config: " + $.toJSON(mkws_config));
581 saved_config = mkws_config;
583 mkws.setMkwsConfig(saved_config);
585 for (var key in mkws.config) {
586 if (mkws.config.hasOwnProperty(key)) {
587 if (key.match(/^language_/)) {
588 var lang = key.replace(/^language_/, "");
589 // Copy custom languages into list
590 mkws.locale_lang[lang] = mkws.config[key];
591 mkws.info("added locally configured language '" + lang + "'");
596 var lang = mkws.getParameterByName("lang") || mkws.config.lang;
597 if (!lang || !mkws.locale_lang[lang]) {
598 mkws.config.lang = ""
600 mkws.config.lang = lang;
603 mkws.info("using language: " + (mkws.config.lang ? mkws.config.lang : "none"));
605 // protocol independent link for pazpar2: "//mkws/sp" -> "https://mkws/sp"
606 if (mkws.pazpar2_url().match(/^\/\//)) {
607 mkws.config.pazpar2_url = document.location.protocol + mkws.config.pazpar2_url;
608 mkws.info("adjusted protocol independent link to " + mkws.pazpar2_url());
611 if (mkws.config.responsive_design_width) {
612 // Responsive web design - change layout on the fly based on
613 // current screen width. Required for mobile devices.
614 $(window).resize(resizePage);
615 // initial check after page load
616 $(document).ready(resizePage);
621 // If we've made no widgets, return without starting an SP session
622 // or marking MKWS active.
623 if (makeWidgetsWithin(1, rootsel ? $(rootsel) : undefined) === false) {
628 mkws.info("walking MKWS nodes took " + (now-then) + " ms");
629 for (var tName in mkws.teams) {
630 var myTeam = mkws.teams[tName]
632 myTeam.info("made PZ2 object");
634 myTeam.visitWidgets(function(t, w) {
635 mkws.debug(" has widget of type '" + t + "': " + w);
640 function sp_auth_url(config) {
641 if (config.service_proxy_auth) {
642 mkws.info("using pre-baked sp_auth_url '" + config.service_proxy_auth + "'");
643 return config.service_proxy_auth;
646 s += config.sp_auth_hostname ? config.sp_auth_hostname : config.pp2_hostname;
648 s += config.sp_auth_path ? config.sp_auth_path : config.pp2_path;
649 var q = config.sp_auth_query;
653 var c = config.sp_auth_credentials;
655 s += ('&username=' + c.substr(0, c.indexOf('/')) +
656 '&password=' + c.substr(c.indexOf('/')+1));
658 mkws.info("generated sp_auth_url '" + s + "'");
663 if (mkws.config.use_service_proxy && !mkws.authenticated && !mkws.authenticating) {
664 authenticateSession(sp_auth_url(mkws.config),
665 mkws.config.service_proxy_auth_domain,
667 } else if (!mkws.authenticating) {
668 // raw pp2 or we have a session already open
672 mkws.isActive = true;
676 $(document).ready(function() {
677 if (!window.mkws_noready && !mkws.authenticating && !mkws.active) {