1 // Load tab panes on demand. See app/views/application/_content.html.erb
3 // Fire when a tab is selected/clicked.
4 $(document).on('shown.bs.tab', '[data-toggle="tab"]', function(event) {
5 // When we switch tabs, remove "active" from any refreshable panes within
6 // the previous tab content so they don't continue to refresh unnecessarily, and
7 // add "active" to any refreshable panes under the newly shown tab content.
9 var tgt = $($(event.relatedTarget).attr('href'));
10 $(".pane-anchor", tgt).each(function (i, e) {
11 var a = $($(e).attr('href'));
12 a.removeClass("active");
15 tgt = $($(event.target).attr('href'));
16 $(".pane-anchor", tgt).each(function (i, e) {
17 var a = $($(e).attr('href'));
21 // Now trigger reload of the newly shown tab pane.
22 $(event.target).trigger('arv:pane:reload');
25 // Ask a refreshable pane to reload via ajax.
26 // Target of this event is the anchoring element that manages the pane.
28 // Panes can be in one of three primary states, managed by setting CSS classes
29 // on the object: not loaded (no pane-* state classes), pane-loading, pane-loaded
31 // not loaded means the pane needs to be loaded when the pane becomes active
33 // pane-loading means there is a current AJAX call outstanding to reload the pane
35 // pane-loaded means the pane is believe to be up to date
37 // There are two additional states: pane-stale and pane-reload-pending
39 // pane-stale indicates a pane that is already loading has been invalidated and
40 // should schedule a reload immediately when the current load completes. (This
41 // happens if there are clusters of events, where the reload is trigged by the
42 // first event, but we actually want to display the state after the final event
43 // has been processed.)
45 // pane-reload-pending indicates a reload is scheduled, to suppress
46 // scheduling any additional reloads.
47 $(document).on('arv:pane:reload', function(e) {
50 // '$anchor' is the event target, which is a .pane-anchor or a bootstrap
51 // tab anchor. This is the element that stores the state of the pane. The
52 // actual element that will contain the content is pointed to in the 'href'
53 // attribute of etarget.
54 var $anchor = $(e.target);
56 if ($anchor.hasClass('pane-loading')) {
57 // Already loading, mark stale to schedule a reload after this one.
58 $anchor.addClass('pane-stale');
62 if ($anchor.hasClass('pane-no-auto-reload') && $anchor.hasClass('pane-loaded')) {
63 // Have to explicitly remove pane-loaded if we want it to reload.
67 var throttle = $anchor.attr('data-load-throttle');
71 var now = (new Date()).getTime();
72 var loaded_at = $anchor.attr('data-loaded-at');
73 var since_last_load = now - loaded_at;
74 if (loaded_at && (since_last_load < throttle)) {
75 if (!$anchor.hasClass('pane-reload-pending')) {
76 $anchor.addClass('pane-reload-pending');
77 setTimeout((function() {
78 $anchor.trigger('arv:pane:reload');
79 }), throttle - since_last_load);
84 // We know this doesn't have 'pane-loading' because we tested for it above
85 $anchor.removeClass('pane-reload-pending');
86 $anchor.removeClass('pane-loaded');
87 $anchor.removeClass('pane-stale');
89 // $pane is the actual content area that is going to be updated.
90 var $pane = $($anchor.attr('href'));
91 if ($pane.hasClass('active')) {
92 $anchor.addClass('pane-loading');
94 var content_url = $anchor.attr('data-pane-content-url');
95 $.ajax(content_url, {dataType: 'html', type: 'GET', context: $pane}).
96 done(function(data, status, jqxhr) {
97 // Preserve collapsed state
99 $(".collapse", $(this)).each(function(i, c) {
100 collapsable[c.id] = $(c).hasClass('in');
103 $(".collapse", tmp).each(function(i, c) {
104 if (collapsable[c.id]) {
107 $(c).removeClass('in');
111 $anchor.removeClass('pane-loading');
112 $anchor.addClass('pane-loaded');
113 $anchor.attr('data-loaded-at', (new Date()).getTime());
114 $(this).trigger('arv:pane:loaded');
116 if ($anchor.hasClass('pane-stale')) {
117 $anchor.trigger('arv:pane:reload');
119 }).fail(function(jqxhr, status, error) {
121 if (jqxhr.getResponseHeader('Content-Type').match(/\btext\/html\b/)) {
122 var $response = $(jqxhr.responseText);
123 var $wrapper = $('div#page-wrapper', $response);
124 if ($wrapper.length) {
125 errhtml = $wrapper.html();
127 errhtml = jqxhr.responseText;
130 errhtml = ("An error occurred: " +
131 (jqxhr.responseText || status)).
132 replace(/&/g, '&').
133 replace(/</g, '<').
134 replace(/>/g, '>');
136 $(this).html('<div><p>' +
137 '<a href="#" class="btn btn-primary tab_reload">' +
138 '<i class="fa fa-fw fa-refresh"></i> ' +
139 'Reload tab</a></p><iframe style="width: 100%"></iframe></div>');
140 $('.tab_reload', $(this)).click(function() {
141 $(this).html('<div class="spinner spinner-32px spinner-h-center"></div>');
142 $anchor.trigger('arv:pane:reload');
144 // We want to render the error in an iframe, in order to
145 // avoid conflicts with the main page's element ids, etc.
146 // In order to do that dynamically, we have to set a
147 // timeout on the iframe window to load our HTML *after*
148 // the default source (e.g., about:blank) has loaded.
149 var iframe = $('iframe', $(this))[0];
150 iframe.contentWindow.setTimeout(function() {
151 $('body', iframe.contentDocument).html(errhtml);
152 iframe.height = iframe.contentDocument.body.scrollHeight + "px";
154 $anchor.addClass('pane-loaded');
157 // When the user selects e.target tab, show a spinner instead of
158 // old content while loading.
159 $pane.html('<div class="spinner spinner-32px spinner-h-center"></div>');
163 // Mark all panes as stale/dirty. Refresh any 'active' panes.
164 $(document).on('arv:pane:reload:all', function() {
165 $('.pane-anchor').trigger('arv:pane:reload');
168 $(document).on('ready ajax:complete', function() {
169 // Panes marked arv-refresh-on-log-event should be refreshed
170 $('.pane-anchor.arv-refresh-on-log-event').on('arv-log-event', function(e) {
171 $(e.target).trigger('arv:pane:reload');
175 // If there is a 'tab counts url' in the nav-tabs element then use it to get some javascript that will update them
176 $(document).on('ready count-change', function() {
177 var tabCountsUrl = $('ul.nav-tabs').data('tab-counts-url');
178 if( tabCountsUrl && tabCountsUrl.length ) {
179 $.get( tabCountsUrl );