1 /*! MKWS, the MasterKey Widget Set.
2 * Copyright (C) 2013-2014 Index Data
3 * See the file LICENSE for details
6 "use strict"; // HTML5: disable for log_level >= 2
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
18 log_level: 1, // Will be overridden from mkws.config, but
19 // initial value allows jQuery popup to use logging.
21 widgetType2function: {},
27 "Subjects": "Schlagwörter",
28 "Sources": "Daten und Quellen",
29 "source": "datenquelle",
30 "Termlists": "Termlisten",
32 "Prev": "Zurück",
34 "Sort by": "Sortieren nach",
35 "and show": "und zeige",
36 "per page": "pro Seite",
37 "Displaying": "Zeige",
45 "Subject": "Schlagwort",
46 "subject": "schlagwort",
48 "Records": "Datensätze",
49 "Targets": "Datenbanken",
55 "Authors": "Forfattere",
59 "Termlists": "Termlists",
60 "Next": "Næste",
62 "Search": "Søg",
63 "Sort by": "Sorter efter",
65 "per page": "per side",
66 "Displaying": "Viser",
71 "Author": "Forfatter",
72 "author": "forfatter",
76 "Location": "Lokation",
85 // We may be using a separate copy
86 if (typeof(mkws_jQuery) !== "undefined") {
92 mkws.log = function(string) {
96 if (typeof console === "undefined" || typeof console.log === "undefined") { /* ARGH!!! old IE */
100 // you need to disable use strict at the top of the file!!!
101 if (mkws.log_level >= 3) {
102 // Works in Chrome; not sure about elsewhere
104 } else if (mkws.log_level >= 2) {
105 console.log(">>> called from function " + arguments.callee.caller.name + ' <<<');
111 // Incredible that the standard JavaScript runtime doesn't define a
112 // unique windowId. Instead, we have to make one up. And since there's
113 // no global area shared between windows, the best we can do for
114 // ensuring uniqueness is generating a random ID and crossing our
115 // fingers. We stash this in window.name, as it's the only place to
116 // keep data that is preserved across reloads and within-site
117 // navigation. pz2.js picks this up and uses it as part of the
118 // cookie-name, to ensure each tab gets its own session.
120 mkws.log("Using existing window.name '" + window.name + "'");
122 // Ten chars from 26 alpha-numerics = 36^10 = 3.65e15 combinations.
123 // At one per second, it will take 116 million years to duplicate a session
124 window.name = Math.random().toString(36).slice(2, 12);
125 mkws.log("Generated new window.name '" + window.name + "'");
129 // Translation function.
130 mkws.M = function(word) {
131 var lang = mkws.config.lang;
133 if (!lang || !mkws.locale_lang[lang])
136 return mkws.locale_lang[lang][word] || word;
140 // This function is taken from a StackOverflow answer
141 // http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript/901144#901144
142 mkws.getParameterByName = function(name, url) {
143 if (!url) url = location.search;
144 name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
145 var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
146 results = regex.exec(url);
147 return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
151 mkws.registerWidgetType = function(name, fn) {
152 mkws.widgetType2function[name] = fn;
153 mkws.log("registered widget-type '" + name + "'");
156 mkws.promotionFunction = function(name) {
157 return mkws.widgetType2function[name];
161 mkws.setMkwsConfig = function(overrides) {
162 // Set global log_level flag early so that mkws.log() works
163 // Fall back to old "debug_level" setting for backwards compatibility
164 var tmp = overrides.log_level;
165 if (typeof(tmp) === 'undefined') tmp = overrides.debug_level;
166 if (typeof(tmp) !== 'undefined') mkws.log_level = tmp;
168 var config_default = {
169 use_service_proxy: true,
170 pazpar2_url: "//mkws.indexdata.com/service-proxy/",
171 service_proxy_auth: "//mkws.indexdata.com/service-proxy-auth",
173 sort_options: [["relevance"], ["title:1", "title"], ["date:0", "newest"], ["date:1", "oldest"]],
174 perpage_options: [10, 20, 30, 50],
175 sort_default: "relevance",
178 show_lang: true, /* show/hide language menu */
179 show_sort: true, /* show/hide sort menu */
180 show_perpage: true, /* show/hide perpage menu */
181 show_switch: true, /* show/hide switch menu */
182 lang_options: [], /* display languages links for given languages, [] for all */
183 facets: ["xtargets", "subject", "author"], /* display facets, in this order, [] for none */
184 responsive_design_width: undefined, /* a page with less pixel width considered as narrow */
185 log_level: 1, /* log level for development: 0..2 */
186 template_vars: {}, /* values that may be exposed to templates */
191 mkws.config = mkws.objectInheritingFrom(config_default);
192 for (var k in overrides) {
193 mkws.config[k] = overrides[k];
198 // This code is from Douglas Crockford's article "Prototypal Inheritance in JavaScript"
199 // http://javascript.crockford.com/prototypal.html
200 // mkws.objectInheritingFrom behaves the same as Object.create,
201 // but since the latter is not available in IE8 we can't use it.
203 mkws.objectInheritingFrom = function(o) {
210 // The following functions are dispatchers for team methods that
211 // are called from the UI using a team-name rather than implicit
213 mkws.switchView = function(tname, view) {
214 mkws.teams[tname].switchView(view);
217 mkws.showDetails = function(tname, prefixRecId) {
218 mkws.teams[tname].showDetails(prefixRecId);
221 mkws.limitTarget = function(tname, id, name) {
222 mkws.teams[tname].limitTarget(id, name);
225 mkws.limitQuery = function(tname, field, value) {
226 mkws.teams[tname].limitQuery(field, value);
229 mkws.limitCategory = function(tname, id) {
230 mkws.teams[tname].limitCategory(id);
233 mkws.delimitTarget = function(tname, id) {
234 mkws.teams[tname].delimitTarget(id);
237 mkws.delimitQuery = function(tname, field, value) {
238 mkws.teams[tname].delimitQuery(field, value);
241 mkws.showPage = function(tname, pageNum) {
242 mkws.teams[tname].showPage(pageNum);
245 mkws.pagerPrev = function(tname) {
246 mkws.teams[tname].pagerPrev();
249 mkws.pagerNext = function(tname) {
250 mkws.teams[tname].pagerNext();
254 // wrapper to provide local copy of the jQuery object.
258 function handleNodeWithTeam(node, callback) {
259 // First branch for DOM objects; second branch for jQuery objects
260 var classes = node.className || node.attr('class');
262 // For some reason, if we try to proceed when classes is
263 // undefined, we don't get an error message, but this
264 // function and its callers, up several stack level,
265 // silently return. What a crock.
266 log("handleNodeWithTeam() called on node with no classes");
269 var list = classes.split(/\s+/)
272 for (var i = 0; i < list.length; i++) {
274 if (cname.match(/^mkwsTeam_/)) {
275 teamName = cname.replace(/^mkwsTeam_/, '');
276 } else if (cname.match(/^mkws/)) {
277 type = cname.replace(/^mkws/, '');
281 // Widgets without a team are on team "AUTO"
284 // Autosearch widgets don't join team AUTO if there is already an
285 // autosearch on the team or the team has otherwise gotten a query
286 if (node.hasAttribute("autosearch")) {
287 if (mkws.autoHasAuto ||
288 mkws.teams["AUTO"] && mkws.teams["AUTO"].config["query"]) {
289 log("AUTO team already has a query, using unique team");
292 mkws.autoHasAuto = true;
296 // Widgets on team "UNIQUE" get a random team
297 if (teamName === "UNIQUE") {
298 teamName = Math.floor(Math.random() * 100000000).toString();
301 callback.call(node, teamName, type);
305 function resizePage() {
306 var threshhold = mkws.config.responsive_design_width;
307 var width = $(window).width();
308 var from, to, method;
310 if ((mkws.width === undefined || mkws.width > threshhold) &&
311 width <= threshhold) {
312 from = "wide"; to = "narrow"; method = "hide";
313 } else if ((mkws.width === undefined || mkws.width <= threshhold) &&
314 width > threshhold) {
315 from = "narrow"; to = "wide"; method = "show";
320 log("changing from " + from + " to " + to + ": " + width);
321 for (var tname in mkws.teams) {
322 var team = mkws.teams[tname];
323 team.visitWidgets(function(t, w) {
324 var w1 = team.widget(t + "-Container-" + from);
325 var w2 = team.widget(t + "-Container-" + to);
331 w.node.appendTo(w2.node);
334 team.queue("resize-" + to).publish();
341 * Run service-proxy authentication in background (after page load).
342 * The username/password is configured in the apache config file
345 function authenticateSession(auth_url, auth_domain, pp2_url) {
346 log("service proxy authentication on URL: " + auth_url);
349 auth_domain = pp2_url.replace(/^(https?:)?\/\/(.*?)\/.*/, '$2');
350 log("guessed auth_domain '" + auth_domain + "' from pp2_url '" + pp2_url + "'");
353 var request = new pzHttpRequest(auth_url, function(err) {
354 alert("HTTP call for authentication failed: " + err)
358 request.get(null, function(data) {
359 if (!$.isXMLDoc(data)) {
360 alert("Service Proxy authentication response is not a valid XML document");
363 var status = $(data).find("status");
364 if (status.text() != "OK") {
365 var message = $(data).find("message");
366 alert("Service Proxy authentication response: " + status.text() + " (" + message.text() + ")");
370 log("service proxy authentication successful");
371 mkws.authenticated = true;
372 var authName = $(data).find("displayName").text();
373 // You'd think there would be a better way to do this:
374 var realm = $(data).find("realm:not(realmAttributes realm)").text();
375 for (var teamName in mkws.teams) {
376 mkws.teams[teamName].queue("authenticated").publish(authName, realm);
384 function runAutoSearches() {
385 log("running auto searches");
387 for (var teamName in mkws.teams) {
388 mkws.teams[teamName].queue("ready").publish();
393 function selectorForAllWidgets() {
394 if (mkws.config && mkws.config.scan_all_nodes) {
395 // This is the old version, which works by telling jQuery to
396 // find every node that has a class beginning with "mkws". In
397 // theory it should be slower than the class-based selector; but
398 // instrumentation suprisnigly shows this is consistently
399 // faster. It also has the advantage that any widgets of
400 // non-registered types are logged as warnings rather than
402 return '[class^="mkws"],[class*=" mkws"]';
404 // This is the new version, which works by looking up the
405 // specific classes of all registered widget types and their
406 // resize containers. Because all it requires jQuery to do is
407 // some hash lookups in pre-built tables, it should be very
408 // fast; but it silently ignores widgets of unregistered types.
410 for (var type in mkws.widgetType2function) {
413 s += ',.mkws' + type + "-Container-wide";
414 s += ',.mkws' + type + "-Container-narrow";
421 function makeWidgetsWithin(level, node) {
422 if (node) var widgetNodes = node.find(selectorForAllWidgets());
423 else widgetNodes = $(selectorForAllWidgets());
424 // Return false if we parse no widgets
425 if (widgetNodes.length < 1) return false;
426 widgetNodes.each(function() {
427 handleNodeWithTeam(this, function(tname, type) {
428 var myTeam = mkws.teams[tname];
430 myTeam = mkws.teams[tname] = team($, tname);
431 log("made MKWS team '" + tname + "'");
434 var oldHTML = this.innerHTML;
435 var myWidget = widget($, myTeam, type, this);
436 myTeam.addWidget(myWidget);
437 var newHTML = this.innerHTML;
438 if (newHTML !== oldHTML) {
439 log("widget " + tname + ":" + type + " HTML changed: reparsing");
440 makeWidgetsWithin(level+1, $(this));
448 // This function should have no side effects if run again on an operating session, even if
449 // the element/selector passed causes existing widgets to be reparsed:
451 // * configuration is not regenerated
452 // * authentication is not performed again
453 // * autosearches are not re-run
454 mkws.init = function(message, rootsel) {
455 if (message) mkws.log(message);
457 // TODO: Let's remove this soon
458 // Backwards compatibility: set new magic class names on any
459 // elements that have the old magic IDs.
460 var ids = [ "Switch", "Lang", "Search", "Pager", "Navi",
461 "Results", "Records", "Targets", "Ranking",
462 "Termlists", "Stat", "MOTD" ];
463 for (var i = 0; i < ids.length; i++) {
464 var id = 'mkws' + ids[i];
465 var node = $('#' + id);
466 if (node.attr('id')) {
468 log("added magic class to '" + node.attr('id') + "'");
472 // MKWS is not active until init() has been run against an object with widget nodes.
473 // We only set initial configuration when MKWS is first activated.
474 if (!mkws.isActive) {
475 var widgetSelector = selectorForAllWidgets();
476 if ($(widgetSelector).length < 1) {
477 mkws.log("no widgets found");
481 // Initial configuration
482 mkws.autoHasAuto = false;
484 if (typeof mkws_config === 'undefined') {
485 log("setting empty config");
488 log("using config: " + $.toJSON(mkws_config));
489 saved_config = mkws_config;
491 mkws.setMkwsConfig(saved_config);
493 for (var key in mkws.config) {
494 if (mkws.config.hasOwnProperty(key)) {
495 if (key.match(/^language_/)) {
496 var lang = key.replace(/^language_/, "");
497 // Copy custom languages into list
498 mkws.locale_lang[lang] = mkws.config[key];
499 log("added locally configured language '" + lang + "'");
504 var lang = mkws.getParameterByName("lang") || mkws.config.lang;
505 if (!lang || !mkws.locale_lang[lang]) {
506 mkws.config.lang = ""
508 mkws.config.lang = lang;
511 log("using language: " + (mkws.config.lang ? mkws.config.lang : "none"));
513 if (mkws.config.query_width < 5 || mkws.config.query_width > 150) {
514 log("reset query width to " + mkws.config.query_width);
515 mkws.config.query_width = 50;
518 // protocol independent link for pazpar2: "//mkws/sp" -> "https://mkws/sp"
519 if (mkws.config.pazpar2_url.match(/^\/\//)) {
520 mkws.config.pazpar2_url = document.location.protocol + mkws.config.pazpar2_url;
521 log("adjusted protocol independent link to " + mkws.config.pazpar2_url);
524 if (mkws.config.responsive_design_width) {
525 // Responsive web design - change layout on the fly based on
526 // current screen width. Required for mobile devices.
527 $(window).resize(resizePage);
528 // initial check after page load
529 $(document).ready(resizePage);
534 // If we've made no widgets, return without starting an SP session
535 // or marking MKWS active.
536 if (makeWidgetsWithin(1, rootsel) === false) return false;
539 log("walking MKWS nodes took " + (now-then) + " ms");
542 for (var tName in mkws.teams) {
543 var myTeam = mkws.teams[tName]
544 log("team '" + tName + "' = " + myTeam + " ...");
545 myTeam.visitWidgets(function(t, w) {
546 log(" has widget of type '" + t + "': " + w);
551 if (mkws.config.use_service_proxy && !mkws.authenticated) {
552 authenticateSession(mkws.config.service_proxy_auth,
553 mkws.config.service_proxy_auth_domain,
554 mkws.config.pazpar2_url);
556 // raw pp2 or we have a session already open
560 mkws.isActive = true;
564 $(document).ready(function() {