public/javascripts/lsl.js

   1 "use strict";
   2 (function(){
   3 var uri_base, environment, devel_env;   // filled on page load from an HTML attribute
   4 var start_time = Date.now();
   5
   6 var ui_icon_class_re = new RegExp('\\bui-icon-\\S+\\b');
   7 var uri_id_re = new RegExp('/(\\d+)$');
   8 var lists_version = -1;
   9 var lists = [];
  10 var selected_list;
  11
  12 function debug(...args) {
  13     if (devel_env)
  14         console.debug.apply(console, args);
  15 }
  16
  17 function uri_id(uri) {
  18     var m = uri.match(uri_id_re);
  19     return m ? m[1] : null;
  20 }
  21 function add_list_item(data) {
  22     var item = $('<li>').addClass('list-item-row').data('item', data);
  23     var cb = $('<input type="checkbox">');
  24     if (data.done) cb.prop('checked', true);
  25     item.append(cb);
  26     item.append($('<span class="description">').text(data.description || ''));
  27     item.append($('<span class="edit-trigger">').text('…'));
  28
  29     $('#list-items').append(item);
  30     $('#list-contents').addClass('have-list-items');
  31 }
  32 function got_lists_version(new_version) {
  33     if (new_version != lists_version)
  34         window.setTimeout(load_lists);
  35 }
  36 function got_list_version(new_version) {
  37     if (new_version != selected_list.attr('lsl-version'))
  38         window.setTimeout(
  39             () => load_list_items(selected_list.data('lsl-uri'), selected_list));
  40 }
  41 function load_list_items(uri, target) {
  42     $.get(uri)
  43     .done(item_data => {
  44         target.data('items', item_data);
  45
  46         // TODO: merge new items into existing ones
  47         // keep track of the last existing item, and append new one
  48         // after it, prepending if there is no last existing item
  49         // the newly prepended/inserted item becomes the last existing
  50         $('#list-contents').removeClass('have-list-items');
  51         var item_list = $('#list-items').empty();
  52
  53         $.each(item_data.items, (i,item) => {
  54             add_list_item(item);
  55         });
  56
  57         got_lists_version(item_data.lists_version);
  58     });
  59 }
  60 function select_list(new_selected_list) {
  61     if (new_selected_list && selected_list
  62         && new_selected_list.length && selected_list.length
  63         && new_selected_list.get(0) == selected_list.get(0)
  64     )
  65         return;
  66
  67     if (new_selected_list && !new_selected_list.length)
  68         new_selected_list = null;
  69
  70     $('#page').toggleClass('have-lists', !!new_selected_list);
  71
  72     if (selected_list)
  73         selected_list.removeClass('selected');
  74
  75     if (new_selected_list) {
  76         load_list_items(new_selected_list.data('lsl-uri'), new_selected_list);
  77         new_selected_list.addClass('selected');
  78         $('#selected-list-name').text(new_selected_list.data('lsl-name'));
  79     }
  80
  81     selected_list = new_selected_list;
  82 }
  83 function edit_list(li) {
  84     li.addClass('editing');
  85
  86     var d = $('<div>')
  87         .append(
  88             $('<fieldset>')
  89                 .append(
  90                     $('<legend>').text('List name'),
  91                     $('<input type="text" size="40">').val(li.data('lsl-name'))
  92                 )
  93         );
  94
  95     d.dialog({
  96         autoOpen: true,
  97         modal: true,
  98         title: 'Edit list',
  99         close: ()=>{
 100             li.removeClass('editing');
 101         },
 102         width: 'max-content',
 103         buttons: [
 104             {
 105                 class: 'btn-delete',
 106                 icon: 'ui-icon-trash',
 107                 text: 'Delete',
 108                 click: () => {
 109                     delete_list(li, d);
 110                 },
 111             },
 112             {
 113                 text: 'Cancel',
 114                 click: ()=>{ d.dialog('destroy'); },
 115             },
 116             {
 117                 icon: 'ui-icon-disk',
 118                 text: 'OK',
 119                 click: () => {
 120                     save_list(li, d);
 121                 },
 122             },
 123         ],
 124     });
 125 }
 126 function delete_list(li, dlg) {
 127     // TODO: fetch all list items and store all data in a "Deleted"
 128     // pop-up with an "Undo" link that can be used to restore the list
 129     var lists_ver = lists_version;
 130     $.ajax( li.data('lsl-uri'),
 131         { type: 'DELETE' }
 132     )
 133     .done((d)=>{
 134         lists_version = lists_ver + 1;
 135         if (li.hasClass('selected')) {
 136             var new_selected = li.next();
 137             if (new_selected.length) {
 138                 select_list(new_selected)
 139             }
 140             else {
 141                 new_selected = li.prev();
 142                 if (new_selected.length) {
 143                     select_list(new_selected);
 144                 }
 145                 else {
 146                     $('#page').removeClass('have-lists');
 147                 }
 148             }
 149         }
 150
 151         li.remove();
 152         dlg.dialog('destroy');
 153         got_lists_version(d.lists_version);
 154     });
 155 }
 156 function load_lists() {
 157     return $.get(uri_base + '/api/v1/list')
 158     .always(()=>{
 159         var splash = $('#splash');
 160         if (splash.length) {
 161             var dur = splash.css('transition-duration');
 162             if (dur && dur.endsWith('s')) {
 163                 dur = 1000 * parseFloat(dur.substring(0, dur.length-1));
 164             }
 165             else
 166                 dur = 1000;
 167
 168             var now = Date.now();
 169             window.setTimeout(() => {
 170                 splash.addClass('done');
 171                 debug('scheduling splash removal in '+dur+'ms');
 172                 window.setTimeout(()=>{ splash.remove(); }, dur);
 173             },
 174                 Math.max(0, 500 - (now - start_time))
 175             );
 176         }
 177     })
 178     .done(data => {
 179         lists_version = data.lists_version;
 180
 181         var lists = $('#lists');
 182         lists.find('>li').addClass('old');
 183
 184         $.each(data.lists, (i, list) => {
 185             var list_id = uri_id(list.uri);
 186             var existing = lists.find('li#list-'+list_id);
 187             if (existing.length) {
 188                 existing.data('lsl-version', list.version)
 189                 .data('lsl-name', list.name)
 190                 .text(list.name)
 191                 .removeClass('old');
 192             }
 193             else {
 194                 var list_item = $('<li>')
 195                     .prop('id', 'list-'+list_id)
 196                     .data('lsl-uri', list.uri)
 197                     .data('lsl-version', list.version)
 198                     .data('lsl-name', list.name)
 199                     .append(
 200                         $('<span class="list-name">')
 201                         .text(list.name)
 202                     )
 203                     .append(
 204                         $('<span class="list-edit-trigger">')
 205                         .append('<span class="ui-icon ui-icon-pencil">')
 206                     );
 207                 lists.append(list_item);
 208             }
 209         });
 210
 211         if (!selected_list || selected_list.hasClass('old'))
 212             select_list(lists.find('>li').eq(0));
 213
 214         lists.find('li.old').remove();
 215     });
 216 }
 217 function new_list_submission_done(data) {
 218     if (data.lists_version != lists_version) {
 219         load_lists()
 220         .done((d)=>{
 221             var new_list = $('li#list-'+uri_id(data.uri));
 222             if (new_list.length)
 223                 select_list(new_list);
 224         });
 225         return;
 226     }
 227
 228     console.log("TODO: easy-add new list");
 229
 230 }
 231 function handle_new_list_submission(){
 232     $.post(uri_base + '/api/v1/list',
 233         JSON.stringify({name:$('input[name="list_name"]').val()}))
 234     .done(new_list_submission_done);
 235     return false;
 236 }
 237 function new_list_item_submission_done(data) {
 238     got_lists_version(data.lists_version);
 239     got_list_version(data.list_version);
 240
 241     var item_data = selected_list.data('items');
 242
 243     var new_item = {
 244         description: $('#new-list-item input[type="text"]').val().trim(),
 245         done: $('#new-list-item input[type="checkbox"]').prop('checked'),
 246         version: 1,
 247     };
 248     item_data.items.push(new_item);
 249     item_data.version = data.version;
 250     add_list_item(new_item);
 251
 252     $('#new-list-item input').val('');
 253 }
 254 function handle_new_list_item_submission(){
 255     var description = $('#new-list-item input[type="text"]').val().trim();
 256     if (description.length == 0) return;
 257
 258     $.post(selected_list.data('lsl-uri'),
 259         JSON.stringify({
 260             description: description,
 261             done: $('#new-list-item input[type="checkbox"]').prop('checked')
 262         }),
 263     )
 264     .done(new_list_item_submission_done);
 265 }
 266 function handle_list_item_state_changed(ev) {
 267     var item = $(ev.target).closest('li');
 268     var cb = item.find('input[type="checkbox"]');
 269     var item_data = item.data('item');
 270
 271     $.ajax(item_data.uri,
 272         {   type: 'PUT',
 273             data: JSON.stringify({
 274                 version: item_data.version,
 275                 done: cb.prop('checked')})
 276         }
 277     )
 278     .done(function(resp){
 279         item_data.version = resp.version;
 280         got_lists_version(resp.lists_version);
 281         got_list_version(resp.list_version);
 282     });
 283 }
 284 $(function(){
 285     uri_base = $('#page').attr('lsl-uri-base');
 286     environment = $('#page').attr('lsl-environment');
 287     devel_env = environment == 'development';
 288
 289     $(document).ajaxStart(function(){
 290         $(document).addClass('blocked');
 291         window.setTimeout(
 292             function() {
 293                 $(document).addClass('busy');
 294             }
 295         );
 296     });
 297     $(document).ajaxStop(function(){
 298         $(document).removeClass('busy');
 299         window.setTimeout(
 300             function() {
 301                 $(document).removeClass('blocked');
 302             },
 303             1000 );
 304     });
 305     $.ajaxSetup({contentType: 'application/json'});
 306     $('button, input[type="submit"], input[type="reset"]').each(function(){
 307         var class_prop = $(this).prop('class');
 308         var icon_classes = class_prop.match(ui_icon_class_re);
 309         $(this).button({icon: icon_classes?icon_classes[0]:null});
 310     });
 311
 312     $('#new-list-sidebar-item button').on('click', handle_new_list_submission);
 313     $('#new-list-sidebar-item input').on('keypress', function(ev) {
 314         if (13 == ev.keyCode) {
 315             handle_new_list_submission();
 316             return false;
 317         }
 318
 319         return true;
 320     });
 321     $('ul#lists')
 322         .on('click', 'li', ev=>{
 323             select_list($(ev.target).closest('li'));
 324         })
 325         .on('click', 'li > span.list-edit-trigger', ev => {
 326             edit_list($(ev.target).closest('li'));
 327             return false;
 328         });
 329     $('#new-list-item button').on('click', handle_new_list_item_submission);
 330     $('#new-list-item input').on('keypress', ev => {
 331         if (13 == ev.keyCode) {
 332             handle_new_list_item_submission();
 333             return false;
 334         }
 335         return true;
 336     });
 337     $('#list-items').on('change', '.list-item-row input[type="checkbox"]', handle_list_item_state_changed);
 338     load_lists();
 339 });
 340 })();