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         close: (ev) => {
 114             $(ev.target).dialog('destroy');
 115         },
 116         buttons: [
 117             {
 118                 class: 'btn-delete',
 119                 icon: 'ui-icon-trash',
 120                 click: () => {
 121                     delete_list(d);
 122                 },
 123             },
 124             {
 125                 text: 'Cancel',
 126                 click: ()=>{ d.dialog('destroy'); },
 127             },
 128             {
 129                 icon: 'ui-icon-disk',
 130                 text: 'OK',
 131                 click: () => {
 132                     save_list(d);
 133                 },
 134             },
 135         ],
 136     });
 137 }
 138 function delete_list(dlg) {
 139     // TODO: store all data including list items in a "Deleted"
 140     // pop-up with an "Undo" link that can be used to restore the list
 141     var lists_ver = lists_version;
 142     $.ajax( selected_list.data('lsl-uri'),
 143         { type: 'DELETE' }
 144     )
 145     .done((d)=>{
 146         lists_version = lists_ver + 1;
 147         var deleted_list = selected_list;
 148
 149         var new_selected = deleted_list.next();
 150         if (new_selected.length) {
 151             select_list(new_selected)
 152         }
 153         else {
 154             new_selected = deleted_list.prev();
 155             if (new_selected.length) {
 156                 select_list(new_selected);
 157             }
 158             else {
 159                 $('#page').removeClass('have-lists');
 160             }
 161         }
 162
 163         deleted_list.remove();
 164         dlg.dialog('destroy');
 165         got_lists_version(d.lists_version);
 166     });
 167 }
 168 function save_list(dlg) {
 169     var lists_ver = lists_version;
 170     var new_name = dlg.find('input[type="text"]').val();
 171
 172     $.ajax( selected_list.data('lsl-uri'),
 173         {   type: 'PUT',
 174             data: JSON.stringify({ name: new_name,
 175                     version: selected_list.data('lsl-version')})
 176         }
 177     )
 178     .done((d)=>{
 179         lists_version = lists_ver + 1;
 180
 181         selected_list.find('.list-name').text(new_name);
 182         selected_list.data('lsl-name', new_name);
 183         $('#selected-list-name').text(new_name);
 184
 185         dlg.dialog('destroy');
 186         got_lists_version(d.lists_version);
 187     });
 188 }
 189 function load_lists() {
 190     return $.get(uri_base + '/api/v1/list')
 191     .always(()=>{
 192         var splash = $('#splash');
 193         if (splash.length) {
 194             var dur = splash.css('transition-duration');
 195             if (dur && dur.endsWith('s')) {
 196                 dur = 1000 * parseFloat(dur.substring(0, dur.length-1));
 197             }
 198             else
 199                 dur = 1000;
 200
 201             var now = Date.now();
 202             window.setTimeout(() => {
 203                 splash.addClass('done');
 204                 debug('scheduling splash removal in '+dur+'ms');
 205                 window.setTimeout(()=>{ splash.remove(); }, dur);
 206             },
 207                 Math.max(0, 500 - (now - start_time))
 208             );
 209         }
 210     })
 211     .done(data => {
 212         lists_version = data.lists_version;
 213
 214         var lists = $('#lists');
 215         lists.find('>li').addClass('old');
 216
 217         $.each(data.lists, (i, list) => {
 218             var list_id = uri_id(list.uri);
 219             var existing = lists.find('li#list-'+list_id);
 220             if (existing.length) {
 221                 existing.data('lsl-version', list.version)
 222                 .data('lsl-name', list.name)
 223                 .removeClass('old');
 224                 existing.find('span.list-name').text(list.name);
 225             }
 226             else {
 227                 var list_item = $('<li>')
 228                     .prop('id', 'list-'+list_id)
 229                     .data('lsl-uri', list.uri)
 230                     .data('lsl-version', list.version)
 231                     .data('lsl-name', list.name)
 232                     .append(
 233                         $('<span class="list-name">')
 234                         .text(list.name)
 235                     );
 236                 lists.append(list_item);
 237             }
 238         });
 239
 240         if (!selected_list || selected_list.hasClass('old'))
 241             select_list(lists.find('>li').eq(0));
 242
 243         lists.find('li.old').remove();
 244     });
 245 }
 246 function new_list_submission_done(data) {
 247     $('input[name="list_name"]').val('').trigger('change');
 248
 249     if (data.lists_version != lists_version) {
 250         load_lists()
 251         .done((d)=>{
 252             var new_list = $('li#list-'+uri_id(data.uri));
 253             if (new_list.length)
 254                 select_list(new_list);
 255         });
 256         return;
 257     }
 258
 259     console.log("TODO: easy-add new list");
 260
 261 }
 262 function handle_new_list_submission(){
 263     $.post(uri_base + '/api/v1/list',
 264         JSON.stringify({name:$('input[name="list_name"]').val()}))
 265     .done(new_list_submission_done);
 266     return false;
 267 }
 268 function new_list_item_submission_done(data) {
 269     got_lists_version(data.lists_version);
 270     selected_list.data('lsl-version', selected_list.data('lsl-version') + 1 );
 271     got_list_version(data.list_version);
 272
 273     var new_item = {
 274         description: $('#new-list-item input[type="text"]').val().trim(),
 275         done: $('#new-list-item input[type="checkbox"]').prop('checked'),
 276         version: 1,
 277         uri: data.uri,
 278     };
 279     selected_list.data('lsl-items').push(new_item);
 280     add_list_item(new_item);
 281
 282     $('#new-list-item input').val('');
 283 }
 284 function delete_list_item(dlg, li) {
 285     $.ajax(li.data('lsl-uri'),
 286         {   type: 'DELETE' })
 287     .done((resp) => {
 288         li.remove();
 289         dlg.dialog('destroy');
 290         selected_list.data('lsl-version', selected_list.data('lsl-version')+1);
 291         got_list_version(resp.list_version);
 292         got_lists_version(resp.lists_version);
 293     });
 294 }
 295 function save_list_item(dlg,li) {
 296     var new_description = dlg.find('input[type="text"]').val();
 297
 298     $.ajax( li.data('lsl-uri'),
 299         {   type: 'PUT',
 300             data: JSON.stringify({
 301                 description: new_description,
 302                 version: li.data('lsl-version')})
 303         }
 304     )
 305     .done((d)=>{
 306         selected_list.data('lsl-version', selected_list.data('lsl-version') + 1);
 307
 308         li.data('lsl-description', new_description);
 309         li.data('lsl-version', d.version);
 310         li.find('.description').text(new_description);
 311
 312         dlg.dialog('destroy');
 313         got_list_version(d.list_version);
 314         got_lists_version(d.lists_version);
 315     });
 316 }
 317 function edit_list_item(li) {
 318     var d = $('<div>')
 319         .append(
 320             $('<fieldset>')
 321                 .append(
 322                     $('<legend>').text('Item name'),
 323                     $('<input type="text" size="10">')
 324                     .on('keypress', (ev) => {
 325                         if (13 == ev.keyCode) {
 326                             save_list_item(d, li);
 327                             return false;
 328                         }
 329
 330                         return true;
 331                     })
 332                     .val(li.data('lsl-description'))
 333                 )
 334         );
 335
 336     d.dialog({
 337         dialogClass: 'edit-item-dialog',
 338         autoOpen: true,
 339         modal: true,
 340         title: 'Edit item',
 341         width: 'max-content',
 342         close: (ev) => {
 343             $(ev.target).dialog('destroy');
 344         },
 345         buttons: [
 346             {
 347                 class: 'btn-delete',
 348                 icon: 'ui-icon-trash',
 349                 click: () => {
 350                     delete_list_item(d, li);
 351                 },
 352             },
 353             {
 354                 text: 'Cancel',
 355                 click: ()=>{ d.dialog('destroy'); },
 356             },
 357             {
 358                 icon: 'ui-icon-disk',
 359                 text: 'OK',
 360                 click: () => {
 361                     save_list_item(d, li);
 362                 },
 363             },
 364         ],
 365     });
 366 }
 367 function handle_list_item_edit(ev) {
 368     var li = $(ev.target).closest('li');
 369     edit_list_item(li);
 370     return false;
 371 }
 372 function handle_new_list_item_submission(){
 373     var description = $('#new-list-item input[type="text"]').val().trim();
 374     if (description.length == 0) return;
 375
 376     $.post(selected_list.data('lsl-uri'),
 377         JSON.stringify({
 378             description: description,
 379             done: $('#new-list-item input[type="checkbox"]').prop('checked')
 380         }),
 381     )
 382     .done(new_list_item_submission_done);
 383 }
 384 function handle_list_item_state_changed(ev) {
 385     var item = $(ev.target).closest('li');
 386     var cb = item.find('input[type="checkbox"]');
 387
 388     $.ajax(item.data('lsl-uri'),
 389         {   type: 'PUT',
 390             data: JSON.stringify({
 391                 version: item.data('lsl-version'),
 392                 done: cb.prop('checked')})
 393         }
 394     )
 395     .done(function(resp){
 396         item.data('lsl-version', resp.version);
 397         got_lists_version(resp.lists_version);
 398         selected_list.data('lsl-version', selected_list.data('lsl-version')+1);
 399         got_list_version(resp.list_version);
 400     });
 401 }
 402 $(function(){
 403     uri_base = $('#page').attr('lsl-uri-base');
 404     environment = $('#page').attr('lsl-environment');
 405     devel_env = environment == 'development';
 406
 407     $(document).ajaxStart(function(){
 408         $(document).addClass('blocked');
 409         window.setTimeout(
 410             function() {
 411                 $(document).addClass('busy');
 412             }
 413         );
 414     });
 415     $(document).ajaxStop(function(){
 416         $(document).removeClass('busy');
 417         window.setTimeout(
 418             function() {
 419                 $(document).removeClass('blocked');
 420             },
 421             1000 );
 422     });
 423     $.ajaxSetup({contentType: 'application/json'});
 424     $('button, input[type="submit"], input[type="reset"]').each(function(){
 425         var class_prop = $(this).prop('class');
 426         var icon_classes = class_prop.match(ui_icon_class_re);
 427         $(this).button({icon: icon_classes?icon_classes[0]:null});
 428     });
 429
 430     $('#new-list-sidebar-item button').on('click', handle_new_list_submission);
 431     $('#new-list-sidebar-item input').on('keypress', function(ev) {
 432         if (13 == ev.keyCode) {
 433             handle_new_list_submission();
 434             return false;
 435         }
 436
 437         return true;
 438     });
 439     $('#lists')
 440         .on('click', 'li', ev=>{
 441             select_list($(ev.target).closest('li'));
 442         });
 443     $('#list-edit-trigger').on('click', ev => {
 444         edit_list();
 445         return false;
 446     });
 447     $('#list-items').on('click', '>li .edit-trigger', handle_list_item_edit);
 448     $('#new-list-item button').on('click', handle_new_list_item_submission);
 449     $('#new-list-item input').on('keypress', ev => {
 450         if (13 == ev.keyCode) {
 451             handle_new_list_item_submission();
 452             return false;
 453         }
 454         return true;
 455     });
 456     $('#list-items').on('change', '.list-item-row input[type="checkbox"]', handle_list_item_state_changed);
 457     load_lists();
 458     $('body').on('click', '.ui-widget-overlay', (ev) => {
 459         $(ev.target).siblings('.ui-dialog').find('.ui-dialog-content').dialog('close');
 460     });
 461 });
 462 })();