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({
  23         'lsl-uri': data.uri,
  24         'lsl-version': data.version,
  25         'lsl-description': data.description,
  26         'lsl-done': data.done});
  27     var cb = $('<input type="checkbox">');
  28     if (data.done) cb.prop('checked', true);
  29     item.append(cb);
  30     item.append($('<span class="description">').text(data.description || ''));
  31     item.append($('<span class="edit-trigger">').text('…'));
  32
  33     $('#list-items').append(item);
  34     $('#list-contents').addClass('have-list-items');
  35 }
  36 function got_lists_version(new_version) {
  37     if (new_version != lists_version)
  38         window.setTimeout(load_lists);
  39 }
  40 function got_list_version(new_version) {
  41     if (new_version != selected_list.data('lsl-version'))
  42         window.setTimeout(
  43             () => load_list_items(selected_list.data('lsl-uri'), selected_list));
  44 }
  45 function load_list_items(uri, target) {
  46     $.get(uri)
  47     .done(item_data => {
  48         target.data('lsl-items', item_data.items);
  49         target.data('lsl-version', item_data.version);
  50
  51         // TODO: merge new items into existing ones
  52         // keep track of the last existing item, and append new one
  53         // after it, prepending if there is no last existing item
  54         // the newly prepended/inserted item becomes the last existing
  55         $('#list-contents').removeClass('have-list-items');
  56         var item_list = $('#list-items').empty();
  57
  58         $.each(item_data.items, (i,item) => {
  59             add_list_item(item);
  60         });
  61
  62         got_lists_version(item_data.lists_version);
  63     });
  64 }
  65 function select_list(new_selected_list) {
  66     if (new_selected_list && selected_list
  67         && new_selected_list.length && selected_list.length
  68         && new_selected_list.get(0) == selected_list.get(0)
  69     )
  70         return;
  71
  72     if (new_selected_list && !new_selected_list.length)
  73         new_selected_list = null;
  74
  75     $('#page').toggleClass('have-lists', !!new_selected_list);
  76
  77     if (selected_list)
  78         selected_list.removeClass('selected');
  79
  80     if (new_selected_list) {
  81         load_list_items(new_selected_list.data('lsl-uri'), new_selected_list);
  82         new_selected_list.addClass('selected');
  83         $('#selected-list-name').text(new_selected_list.data('lsl-name'));
  84     }
  85
  86     selected_list = new_selected_list;
  87 }
  88 function edit_list() {
  89     var d = $('<div>')
  90         .append(
  91             $('<fieldset>')
  92                 .append(
  93                     $('<legend>').text('List name'),
  94                     $('<input type="text" size="10">')
  95                     .val(selected_list.data('lsl-name'))
  96                 )
  97         );
  98
  99     d.dialog({
 100         dialogClass: 'edit-list-dialog',
 101         autoOpen: true,
 102         modal: true,
 103         title: 'Edit list',
 104         width: 'max-content',
 105         buttons: [
 106             {
 107                 class: 'btn-delete',
 108                 icon: 'ui-icon-trash',
 109                 click: () => {
 110                     delete_list(d);
 111                 },
 112             },
 113             {
 114                 text: 'Cancel',
 115                 click: ()=>{ d.dialog('destroy'); },
 116             },
 117             {
 118                 icon: 'ui-icon-disk',
 119                 text: 'OK',
 120                 click: () => {
 121                     save_list(d);
 122                 },
 123             },
 124         ],
 125     });
 126 }
 127 function delete_list(dlg) {
 128     // TODO: store all data including list items in a "Deleted"
 129     // pop-up with an "Undo" link that can be used to restore the list
 130     var lists_ver = lists_version;
 131     $.ajax( selected_list.data('lsl-uri'),
 132         { type: 'DELETE' }
 133     )
 134     .done((d)=>{
 135         lists_version = lists_ver + 1;
 136         var deleted_list = selected_list;
 137
 138         var new_selected = deleted_list.next();
 139         if (new_selected.length) {
 140             select_list(new_selected)
 141         }
 142         else {
 143             new_selected = deleted_list.prev();
 144             if (new_selected.length) {
 145                 select_list(new_selected);
 146             }
 147             else {
 148                 $('#page').removeClass('have-lists');
 149             }
 150         }
 151
 152         deleted_list.remove();
 153         dlg.dialog('destroy');
 154         got_lists_version(d.lists_version);
 155     });
 156 }
 157 function save_list(dlg) {
 158     var lists_ver = lists_version;
 159     var new_name = dlg.find('input[type="text"]').val();
 160
 161     $.ajax( selected_list.data('lsl-uri'),
 162         {   type: 'PUT',
 163             data: JSON.stringify({ name: new_name,
 164                     version: selected_list.data('lsl-version')})
 165         }
 166     )
 167     .done((d)=>{
 168         lists_version = lists_ver + 1;
 169
 170         selected_list.find('.list-name').text(new_name);
 171         selected_list.data('lsl-name', new_name);
 172         $('#selected-list-name').text(new_name);
 173
 174         dlg.dialog('destroy');
 175         got_lists_version(d.lists_version);
 176     });
 177 }
 178 function load_lists() {
 179     return $.get(uri_base + '/api/v1/list')
 180     .always(()=>{
 181         var splash = $('#splash');
 182         if (splash.length) {
 183             var dur = splash.css('transition-duration');
 184             if (dur && dur.endsWith('s')) {
 185                 dur = 1000 * parseFloat(dur.substring(0, dur.length-1));
 186             }
 187             else
 188                 dur = 1000;
 189
 190             var now = Date.now();
 191             window.setTimeout(() => {
 192                 splash.addClass('done');
 193                 debug('scheduling splash removal in '+dur+'ms');
 194                 window.setTimeout(()=>{ splash.remove(); }, dur);
 195             },
 196                 Math.max(0, 500 - (now - start_time))
 197             );
 198         }
 199     })
 200     .done(data => {
 201         lists_version = data.lists_version;
 202
 203         var lists = $('#lists');
 204         lists.find('>li').addClass('old');
 205
 206         $.each(data.lists, (i, list) => {
 207             var list_id = uri_id(list.uri);
 208             var existing = lists.find('li#list-'+list_id);
 209             if (existing.length) {
 210                 existing.data('lsl-version', list.version)
 211                 .data('lsl-name', list.name)
 212                 .removeClass('old');
 213                 existing.find('span.list-name').text(list.name);
 214             }
 215             else {
 216                 var list_item = $('<li>')
 217                     .prop('id', 'list-'+list_id)
 218                     .data('lsl-uri', list.uri)
 219                     .data('lsl-version', list.version)
 220                     .data('lsl-name', list.name)
 221                     .append(
 222                         $('<span class="list-name">')
 223                         .text(list.name)
 224                     );
 225                 lists.append(list_item);
 226             }
 227         });
 228
 229         if (!selected_list || selected_list.hasClass('old'))
 230             select_list(lists.find('>li').eq(0));
 231
 232         lists.find('li.old').remove();
 233     });
 234 }
 235 function new_list_submission_done(data) {
 236     $('input[name="list_name"]').val('').trigger('change');
 237
 238     if (data.lists_version != lists_version) {
 239         load_lists()
 240         .done((d)=>{
 241             var new_list = $('li#list-'+uri_id(data.uri));
 242             if (new_list.length)
 243                 select_list(new_list);
 244         });
 245         return;
 246     }
 247
 248     console.log("TODO: easy-add new list");
 249
 250 }
 251 function handle_new_list_submission(){
 252     $.post(uri_base + '/api/v1/list',
 253         JSON.stringify({name:$('input[name="list_name"]').val()}))
 254     .done(new_list_submission_done);
 255     return false;
 256 }
 257 function new_list_item_submission_done(data) {
 258     got_lists_version(data.lists_version);
 259     selected_list.data('lsl-version', selected_list.data('lsl-version') + 1 );
 260     got_list_version(data.list_version);
 261
 262     var new_item = {
 263         description: $('#new-list-item input[type="text"]').val().trim(),
 264         done: $('#new-list-item input[type="checkbox"]').prop('checked'),
 265         version: 1,
 266         uri: data.uri,
 267     };
 268     selected_list.data('lsl-items').push(new_item);
 269     add_list_item(new_item);
 270
 271     $('#new-list-item input').val('');
 272 }
 273 function delete_list_item(dlg, li) {
 274     $.ajax(li.data('lsl-uri'),
 275         {   type: 'DELETE' })
 276     .done((resp) => {
 277         li.remove();
 278         dlg.dialog('destroy');
 279         selected_list.data('lsl-version', selected_list.data('lsl-version')+1);
 280         got_list_version(resp.list_version);
 281         got_lists_version(resp.lists_version);
 282     });
 283 }
 284 function edit_list_item(li) {
 285     var d = $('<div>')
 286         .append(
 287             $('<fieldset>')
 288                 .append(
 289                     $('<legend>').text('Item name'),
 290                     $('<input type="text" size="10">')
 291                     .val(li.data('lsl-description'))
 292                 )
 293         );
 294
 295     d.dialog({
 296         dialogClass: 'edit-item-dialog',
 297         autoOpen: true,
 298         modal: true,
 299         title: 'Edit item',
 300         width: 'max-content',
 301         buttons: [
 302             {
 303                 class: 'btn-delete',
 304                 icon: 'ui-icon-trash',
 305                 click: () => {
 306                     delete_list_item(d, li);
 307                 },
 308             },
 309             {
 310                 text: 'Cancel',
 311                 click: ()=>{ d.dialog('destroy'); },
 312             },
 313             {
 314                 icon: 'ui-icon-disk',
 315                 text: 'OK',
 316                 click: () => {
 317                     save_list_item(d, li);
 318                 },
 319             },
 320         ],
 321     });
 322 }
 323 function handle_list_item_edit(ev) {
 324     var li = $(ev.target).closest('li');
 325     edit_list_item(li);
 326     return false;
 327 }
 328 function handle_new_list_item_submission(){
 329     var description = $('#new-list-item input[type="text"]').val().trim();
 330     if (description.length == 0) return;
 331
 332     $.post(selected_list.data('lsl-uri'),
 333         JSON.stringify({
 334             description: description,
 335             done: $('#new-list-item input[type="checkbox"]').prop('checked')
 336         }),
 337     )
 338     .done(new_list_item_submission_done);
 339 }
 340 function handle_list_item_state_changed(ev) {
 341     var item = $(ev.target).closest('li');
 342     var cb = item.find('input[type="checkbox"]');
 343
 344     $.ajax(item.data('lsl-uri'),
 345         {   type: 'PUT',
 346             data: JSON.stringify({
 347                 version: item.data('lsl-version'),
 348                 done: cb.prop('checked')})
 349         }
 350     )
 351     .done(function(resp){
 352         item.data('lsl-version', resp.version);
 353         got_lists_version(resp.lists_version);
 354         selected_list.data('lsl-version', selected_list.data('lsl-version')+1);
 355         got_list_version(resp.list_version);
 356     });
 357 }
 358 $(function(){
 359     uri_base = $('#page').attr('lsl-uri-base');
 360     environment = $('#page').attr('lsl-environment');
 361     devel_env = environment == 'development';
 362
 363     $(document).ajaxStart(function(){
 364         $(document).addClass('blocked');
 365         window.setTimeout(
 366             function() {
 367                 $(document).addClass('busy');
 368             }
 369         );
 370     });
 371     $(document).ajaxStop(function(){
 372         $(document).removeClass('busy');
 373         window.setTimeout(
 374             function() {
 375                 $(document).removeClass('blocked');
 376             },
 377             1000 );
 378     });
 379     $.ajaxSetup({contentType: 'application/json'});
 380     $('button, input[type="submit"], input[type="reset"]').each(function(){
 381         var class_prop = $(this).prop('class');
 382         var icon_classes = class_prop.match(ui_icon_class_re);
 383         $(this).button({icon: icon_classes?icon_classes[0]:null});
 384     });
 385
 386     $('#new-list-sidebar-item button').on('click', handle_new_list_submission);
 387     $('#new-list-sidebar-item input').on('keypress', function(ev) {
 388         if (13 == ev.keyCode) {
 389             handle_new_list_submission();
 390             return false;
 391         }
 392
 393         return true;
 394     });
 395     $('#lists')
 396         .on('click', 'li', ev=>{
 397             select_list($(ev.target).closest('li'));
 398         });
 399     $('#list-edit-trigger').on('click', ev => {
 400         edit_list();
 401         return false;
 402     });
 403     $('#list-items').on('click', '>li .edit-trigger', handle_list_item_edit);
 404     $('#new-list-item button').on('click', handle_new_list_item_submission);
 405     $('#new-list-item input').on('keypress', ev => {
 406         if (13 == ev.keyCode) {
 407             handle_new_list_item_submission();
 408             return false;
 409         }
 410         return true;
 411     });
 412     $('#list-items').on('change', '.list-item-row input[type="checkbox"]', handle_list_item_state_changed);
 413     load_lists();
 414 });
 415 })();