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                     .on('keypress', (ev) => {
  96                         if (13 == ev.keyCode) {
  97                             save_list(d);
  98                             return false;
  99                         }
 100
 101                         return true;
 102                     })
 103                     .val(selected_list.data('lsl-name'))
 104                 )
 105         );
 106
 107     d.dialog({
 108         dialogClass: 'edit-list-dialog',
 109         autoOpen: true,
 110         modal: true,
 111         title: 'Edit list',
 112         width: 'max-content',
 113         buttons: [
 114             {
 115                 class: 'btn-delete',
 116                 icon: 'ui-icon-trash',
 117                 click: () => {
 118                     delete_list(d);
 119                 },
 120             },
 121             {
 122                 text: 'Cancel',
 123                 click: ()=>{ d.dialog('destroy'); },
 124             },
 125             {
 126                 icon: 'ui-icon-disk',
 127                 text: 'OK',
 128                 click: () => {
 129                     save_list(d);
 130                 },
 131             },
 132         ],
 133     });
 134 }
 135 function delete_list(dlg) {
 136     // TODO: store all data including list items in a "Deleted"
 137     // pop-up with an "Undo" link that can be used to restore the list
 138     var lists_ver = lists_version;
 139     $.ajax( selected_list.data('lsl-uri'),
 140         { type: 'DELETE' }
 141     )
 142     .done((d)=>{
 143         lists_version = lists_ver + 1;
 144         var deleted_list = selected_list;
 145
 146         var new_selected = deleted_list.next();
 147         if (new_selected.length) {
 148             select_list(new_selected)
 149         }
 150         else {
 151             new_selected = deleted_list.prev();
 152             if (new_selected.length) {
 153                 select_list(new_selected);
 154             }
 155             else {
 156                 $('#page').removeClass('have-lists');
 157             }
 158         }
 159
 160         deleted_list.remove();
 161         dlg.dialog('destroy');
 162         got_lists_version(d.lists_version);
 163     });
 164 }
 165 function save_list(dlg) {
 166     var lists_ver = lists_version;
 167     var new_name = dlg.find('input[type="text"]').val();
 168
 169     $.ajax( selected_list.data('lsl-uri'),
 170         {   type: 'PUT',
 171             data: JSON.stringify({ name: new_name,
 172                     version: selected_list.data('lsl-version')})
 173         }
 174     )
 175     .done((d)=>{
 176         lists_version = lists_ver + 1;
 177
 178         selected_list.find('.list-name').text(new_name);
 179         selected_list.data('lsl-name', new_name);
 180         $('#selected-list-name').text(new_name);
 181
 182         dlg.dialog('destroy');
 183         got_lists_version(d.lists_version);
 184     });
 185 }
 186 function load_lists() {
 187     return $.get(uri_base + '/api/v1/list')
 188     .always(()=>{
 189         var splash = $('#splash');
 190         if (splash.length) {
 191             var dur = splash.css('transition-duration');
 192             if (dur && dur.endsWith('s')) {
 193                 dur = 1000 * parseFloat(dur.substring(0, dur.length-1));
 194             }
 195             else
 196                 dur = 1000;
 197
 198             var now = Date.now();
 199             window.setTimeout(() => {
 200                 splash.addClass('done');
 201                 debug('scheduling splash removal in '+dur+'ms');
 202                 window.setTimeout(()=>{ splash.remove(); }, dur);
 203             },
 204                 Math.max(0, 500 - (now - start_time))
 205             );
 206         }
 207     })
 208     .done(data => {
 209         lists_version = data.lists_version;
 210
 211         var lists = $('#lists');
 212         lists.find('>li').addClass('old');
 213
 214         $.each(data.lists, (i, list) => {
 215             var list_id = uri_id(list.uri);
 216             var existing = lists.find('li#list-'+list_id);
 217             if (existing.length) {
 218                 existing.data('lsl-version', list.version)
 219                 .data('lsl-name', list.name)
 220                 .removeClass('old');
 221                 existing.find('span.list-name').text(list.name);
 222             }
 223             else {
 224                 var list_item = $('<li>')
 225                     .prop('id', 'list-'+list_id)
 226                     .data('lsl-uri', list.uri)
 227                     .data('lsl-version', list.version)
 228                     .data('lsl-name', list.name)
 229                     .append(
 230                         $('<span class="list-name">')
 231                         .text(list.name)
 232                     );
 233                 lists.append(list_item);
 234             }
 235         });
 236
 237         if (!selected_list || selected_list.hasClass('old'))
 238             select_list(lists.find('>li').eq(0));
 239
 240         lists.find('li.old').remove();
 241     });
 242 }
 243 function new_list_submission_done(data) {
 244     $('input[name="list_name"]').val('').trigger('change');
 245
 246     if (data.lists_version != lists_version) {
 247         load_lists()
 248         .done((d)=>{
 249             var new_list = $('li#list-'+uri_id(data.uri));
 250             if (new_list.length)
 251                 select_list(new_list);
 252         });
 253         return;
 254     }
 255
 256     console.log("TODO: easy-add new list");
 257
 258 }
 259 function handle_new_list_submission(){
 260     $.post(uri_base + '/api/v1/list',
 261         JSON.stringify({name:$('input[name="list_name"]').val()}))
 262     .done(new_list_submission_done);
 263     return false;
 264 }
 265 function new_list_item_submission_done(data) {
 266     got_lists_version(data.lists_version);
 267     selected_list.data('lsl-version', selected_list.data('lsl-version') + 1 );
 268     got_list_version(data.list_version);
 269
 270     var new_item = {
 271         description: $('#new-list-item input[type="text"]').val().trim(),
 272         done: $('#new-list-item input[type="checkbox"]').prop('checked'),
 273         version: 1,
 274         uri: data.uri,
 275     };
 276     selected_list.data('lsl-items').push(new_item);
 277     add_list_item(new_item);
 278
 279     $('#new-list-item input').val('');
 280 }
 281 function delete_list_item(dlg, li) {
 282     $.ajax(li.data('lsl-uri'),
 283         {   type: 'DELETE' })
 284     .done((resp) => {
 285         li.remove();
 286         dlg.dialog('destroy');
 287         selected_list.data('lsl-version', selected_list.data('lsl-version')+1);
 288         got_list_version(resp.list_version);
 289         got_lists_version(resp.lists_version);
 290     });
 291 }
 292 function save_list_item(dlg,li) {
 293     var new_description = dlg.find('input[type="text"]').val();
 294
 295     $.ajax( li.data('lsl-uri'),
 296         {   type: 'PUT',
 297             data: JSON.stringify({
 298                 description: new_description,
 299                 version: li.data('lsl-version')})
 300         }
 301     )
 302     .done((d)=>{
 303         selected_list.data('lsl-version', selected_list.data('lsl-version') + 1);
 304
 305         li.data('lsl-description', new_description);
 306         li.data('lsl-version', d.version);
 307         li.find('.description').text(new_description);
 308
 309         dlg.dialog('destroy');
 310         got_list_version(d.list_version);
 311         got_lists_version(d.lists_version);
 312     });
 313 }
 314 function edit_list_item(li) {
 315     var d = $('<div>')
 316         .append(
 317             $('<fieldset>')
 318                 .append(
 319                     $('<legend>').text('Item name'),
 320                     $('<input type="text" size="10">')
 321                     .on('keypress', (ev) => {
 322                         if (13 == ev.keyCode) {
 323                             save_list_item(d, li);
 324                             return false;
 325                         }
 326
 327                         return true;
 328                     })
 329                     .val(li.data('lsl-description'))
 330                 )
 331         );
 332
 333     d.dialog({
 334         dialogClass: 'edit-item-dialog',
 335         autoOpen: true,
 336         modal: true,
 337         title: 'Edit item',
 338         width: 'max-content',
 339         buttons: [
 340             {
 341                 class: 'btn-delete',
 342                 icon: 'ui-icon-trash',
 343                 click: () => {
 344                     delete_list_item(d, li);
 345                 },
 346             },
 347             {
 348                 text: 'Cancel',
 349                 click: ()=>{ d.dialog('destroy'); },
 350             },
 351             {
 352                 icon: 'ui-icon-disk',
 353                 text: 'OK',
 354                 click: () => {
 355                     save_list_item(d, li);
 356                 },
 357             },
 358         ],
 359     });
 360 }
 361 function handle_list_item_edit(ev) {
 362     var li = $(ev.target).closest('li');
 363     edit_list_item(li);
 364     return false;
 365 }
 366 function handle_new_list_item_submission(){
 367     var description = $('#new-list-item input[type="text"]').val().trim();
 368     if (description.length == 0) return;
 369
 370     $.post(selected_list.data('lsl-uri'),
 371         JSON.stringify({
 372             description: description,
 373             done: $('#new-list-item input[type="checkbox"]').prop('checked')
 374         }),
 375     )
 376     .done(new_list_item_submission_done);
 377 }
 378 function handle_list_item_state_changed(ev) {
 379     var item = $(ev.target).closest('li');
 380     var cb = item.find('input[type="checkbox"]');
 381
 382     $.ajax(item.data('lsl-uri'),
 383         {   type: 'PUT',
 384             data: JSON.stringify({
 385                 version: item.data('lsl-version'),
 386                 done: cb.prop('checked')})
 387         }
 388     )
 389     .done(function(resp){
 390         item.data('lsl-version', resp.version);
 391         got_lists_version(resp.lists_version);
 392         selected_list.data('lsl-version', selected_list.data('lsl-version')+1);
 393         got_list_version(resp.list_version);
 394     });
 395 }
 396 $(function(){
 397     uri_base = $('#page').attr('lsl-uri-base');
 398     environment = $('#page').attr('lsl-environment');
 399     devel_env = environment == 'development';
 400
 401     $(document).ajaxStart(function(){
 402         $(document).addClass('blocked');
 403         window.setTimeout(
 404             function() {
 405                 $(document).addClass('busy');
 406             }
 407         );
 408     });
 409     $(document).ajaxStop(function(){
 410         $(document).removeClass('busy');
 411         window.setTimeout(
 412             function() {
 413                 $(document).removeClass('blocked');
 414             },
 415             1000 );
 416     });
 417     $.ajaxSetup({contentType: 'application/json'});
 418     $('button, input[type="submit"], input[type="reset"]').each(function(){
 419         var class_prop = $(this).prop('class');
 420         var icon_classes = class_prop.match(ui_icon_class_re);
 421         $(this).button({icon: icon_classes?icon_classes[0]:null});
 422     });
 423
 424     $('#new-list-sidebar-item button').on('click', handle_new_list_submission);
 425     $('#new-list-sidebar-item input').on('keypress', function(ev) {
 426         if (13 == ev.keyCode) {
 427             handle_new_list_submission();
 428             return false;
 429         }
 430
 431         return true;
 432     });
 433     $('#lists')
 434         .on('click', 'li', ev=>{
 435             select_list($(ev.target).closest('li'));
 436         });
 437     $('#list-edit-trigger').on('click', ev => {
 438         edit_list();
 439         return false;
 440     });
 441     $('#list-items').on('click', '>li .edit-trigger', handle_list_item_edit);
 442     $('#new-list-item button').on('click', handle_new_list_item_submission);
 443     $('#new-list-item input').on('keypress', ev => {
 444         if (13 == ev.keyCode) {
 445             handle_new_list_item_submission();
 446             return false;
 447         }
 448         return true;
 449     });
 450     $('#list-items').on('change', '.list-item-row input[type="checkbox"]', handle_list_item_state_changed);
 451     load_lists();
 452 });
 453 })();