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: 'min(calc(100% - 2em), 20em)',
 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                 icon: 'ui-icon-disk',
 126                 text: 'OK',
 127                 click: () => {
 128                     save_list(d);
 129                 },
 130             },
 131         ],
 132     });
 133 }
 134 function delete_list(dlg) {
 135     // TODO: store all data including list items in a "Deleted"
 136     // pop-up with an "Undo" link that can be used to restore the list
 137     var lists_ver = lists_version;
 138     $.ajax( selected_list.data('lsl-uri'),
 139         { type: 'DELETE' }
 140     )
 141     .done((d)=>{
 142         lists_version = lists_ver + 1;
 143         var deleted_list = selected_list;
 144
 145         var new_selected = deleted_list.next();
 146         if (new_selected.length) {
 147             select_list(new_selected)
 148         }
 149         else {
 150             new_selected = deleted_list.prev();
 151             if (new_selected.length) {
 152                 select_list(new_selected);
 153             }
 154             else {
 155                 $('#page').removeClass('have-lists');
 156             }
 157         }
 158
 159         deleted_list.remove();
 160         dlg.dialog('destroy');
 161         got_lists_version(d.lists_version);
 162     });
 163 }
 164 function save_list(dlg) {
 165     var lists_ver = lists_version;
 166     var new_name = dlg.find('input[type="text"]').val();
 167
 168     $.ajax( selected_list.data('lsl-uri'),
 169         {   type: 'PUT',
 170             data: JSON.stringify({ name: new_name,
 171                     version: selected_list.data('lsl-version')})
 172         }
 173     )
 174     .done((d)=>{
 175         lists_version = lists_ver + 1;
 176
 177         selected_list.find('.list-name').text(new_name);
 178         selected_list.data('lsl-name', new_name);
 179         $('#selected-list-name').text(new_name);
 180
 181         dlg.dialog('destroy');
 182         got_lists_version(d.lists_version);
 183     });
 184 }
 185 function load_lists() {
 186     return $.get(uri_base + '/api/v1/list')
 187     .always(()=>{
 188         var splash = $('#splash');
 189         if (splash.length) {
 190             var dur = splash.css('transition-duration');
 191             if (dur && dur.endsWith('s')) {
 192                 dur = 1000 * parseFloat(dur.substring(0, dur.length-1));
 193             }
 194             else
 195                 dur = 1000;
 196
 197             var now = Date.now();
 198             window.setTimeout(() => {
 199                 splash.addClass('done');
 200                 debug('scheduling splash removal in '+dur+'ms');
 201                 window.setTimeout(()=>{ splash.remove(); }, dur);
 202             },
 203                 Math.max(0, 500 - (now - start_time))
 204             );
 205         }
 206     })
 207     .done(data => {
 208         lists_version = data.lists_version;
 209
 210         var lists = $('#lists');
 211         lists.find('>li').addClass('old');
 212
 213         $.each(data.lists, (i, list) => {
 214             var list_id = uri_id(list.uri);
 215             var existing = lists.find('li#list-'+list_id);
 216             if (existing.length) {
 217                 existing.data('lsl-version', list.version)
 218                 .data('lsl-name', list.name)
 219                 .removeClass('old');
 220                 existing.find('span.list-name').text(list.name);
 221             }
 222             else {
 223                 var list_item = $('<li>')
 224                     .prop('id', 'list-'+list_id)
 225                     .data('lsl-uri', list.uri)
 226                     .data('lsl-version', list.version)
 227                     .data('lsl-name', list.name)
 228                     .append(
 229                         $('<span class="list-name">')
 230                         .text(list.name)
 231                     );
 232                 lists.append(list_item);
 233             }
 234         });
 235
 236         if (!selected_list || selected_list.hasClass('old'))
 237             select_list(lists.find('>li').eq(0));
 238
 239         lists.find('li.old').remove();
 240     });
 241 }
 242 function new_list_submission_done(data) {
 243     $('input[name="list_name"]').val('').trigger('change');
 244
 245     if (data.lists_version != lists_version) {
 246         load_lists()
 247         .done((d)=>{
 248             var new_list = $('li#list-'+uri_id(data.uri));
 249             if (new_list.length)
 250                 select_list(new_list);
 251         });
 252         return;
 253     }
 254
 255     console.log("TODO: easy-add new list");
 256
 257 }
 258 function handle_new_list_submission(){
 259     $.post(uri_base + '/api/v1/list',
 260         JSON.stringify({name:$('input[name="list_name"]').val()}))
 261     .done(new_list_submission_done);
 262     return false;
 263 }
 264 function new_list_item_submission_done(data) {
 265     got_lists_version(data.lists_version);
 266     selected_list.data('lsl-version', selected_list.data('lsl-version') + 1 );
 267     got_list_version(data.list_version);
 268
 269     var new_item = {
 270         description: $('#new-list-item input[type="text"]').val().trim(),
 271         done: $('#new-list-item input[type="checkbox"]').prop('checked'),
 272         version: 1,
 273         uri: data.uri,
 274     };
 275     selected_list.data('lsl-items').push(new_item);
 276     add_list_item(new_item);
 277
 278     $('#new-list-item input').val('');
 279 }
 280 function delete_list_item(dlg, li) {
 281     $.ajax(li.data('lsl-uri'),
 282         {   type: 'DELETE' })
 283     .done((resp) => {
 284         li.remove();
 285         dlg.dialog('destroy');
 286         selected_list.data('lsl-version', selected_list.data('lsl-version')+1);
 287         got_list_version(resp.list_version);
 288         got_lists_version(resp.lists_version);
 289     });
 290 }
 291 function save_list_item(dlg,li) {
 292     var new_description = dlg.find('input[type="text"]').val();
 293
 294     $.ajax( li.data('lsl-uri'),
 295         {   type: 'PUT',
 296             data: JSON.stringify({
 297                 description: new_description,
 298                 version: li.data('lsl-version')})
 299         }
 300     )
 301     .done((d)=>{
 302         selected_list.data('lsl-version', selected_list.data('lsl-version') + 1);
 303
 304         li.data('lsl-description', new_description);
 305         li.data('lsl-version', d.version);
 306         li.find('.description').text(new_description);
 307
 308         dlg.dialog('destroy');
 309         got_list_version(d.list_version);
 310         got_lists_version(d.lists_version);
 311     });
 312 }
 313 function edit_list_item(li) {
 314     var d = $('<div>')
 315         .append(
 316             $('<fieldset>')
 317                 .append(
 318                     $('<legend>').text('Item name'),
 319                     $('<input type="text" size="10">')
 320                     .on('keypress', (ev) => {
 321                         if (13 == ev.keyCode) {
 322                             save_list_item(d, li);
 323                             return false;
 324                         }
 325
 326                         return true;
 327                     })
 328                     .val(li.data('lsl-description'))
 329                 )
 330         );
 331
 332     d.dialog({
 333         dialogClass: 'edit-item-dialog',
 334         autoOpen: true,
 335         modal: true,
 336         title: 'Edit item',
 337         width: 'min(calc(100% - 2em), 20em)',
 338         close: (ev) => {
 339             $(ev.target).dialog('destroy');
 340         },
 341         buttons: [
 342             {
 343                 class: 'btn-delete',
 344                 icon: 'ui-icon-trash',
 345                 click: () => {
 346                     delete_list_item(d, li);
 347                 },
 348             },
 349             {
 350                 icon: 'ui-icon-disk',
 351                 text: 'OK',
 352                 click: () => {
 353                     save_list_item(d, li);
 354                 },
 355             },
 356         ],
 357     });
 358 }
 359 function handle_list_item_edit(ev) {
 360     var li = $(ev.target).closest('li');
 361     edit_list_item(li);
 362     return false;
 363 }
 364 function handle_new_list_item_submission(){
 365     var description = $('#new-list-item input[type="text"]').val().trim();
 366     if (description.length == 0) return;
 367
 368     $.post(selected_list.data('lsl-uri'),
 369         JSON.stringify({
 370             description: description,
 371             done: $('#new-list-item input[type="checkbox"]').prop('checked')
 372         }),
 373     )
 374     .done(new_list_item_submission_done);
 375 }
 376 function handle_list_item_state_changed(ev) {
 377     var item = $(ev.target).closest('li');
 378     var cb = item.find('input[type="checkbox"]');
 379
 380     $.ajax(item.data('lsl-uri'),
 381         {   type: 'PUT',
 382             data: JSON.stringify({
 383                 version: item.data('lsl-version'),
 384                 done: cb.prop('checked')})
 385         }
 386     )
 387     .done(function(resp){
 388         item.data('lsl-version', resp.version);
 389         got_lists_version(resp.lists_version);
 390         selected_list.data('lsl-version', selected_list.data('lsl-version')+1);
 391         got_list_version(resp.list_version);
 392     });
 393 }
 394 $(function(){
 395     uri_base = $('#page').attr('lsl-uri-base');
 396     environment = $('#page').attr('lsl-environment');
 397     devel_env = environment == 'development';
 398
 399     $(document).ajaxStart(function(){
 400         $(document).addClass('blocked');
 401         window.setTimeout(
 402             function() {
 403                 $(document).addClass('busy');
 404             }
 405         );
 406     });
 407     $(document).ajaxStop(function(){
 408         $(document).removeClass('busy');
 409         window.setTimeout(
 410             function() {
 411                 $(document).removeClass('blocked');
 412             },
 413             1000 );
 414     });
 415     $.ajaxSetup({contentType: 'application/json'});
 416     $('button, input[type="submit"], input[type="reset"]').each(function(){
 417         var class_prop = $(this).prop('class');
 418         var icon_classes = class_prop.match(ui_icon_class_re);
 419         $(this).button({icon: icon_classes?icon_classes[0]:null});
 420     });
 421
 422     $('#new-list-sidebar-item button').on('click', handle_new_list_submission);
 423     $('#new-list-sidebar-item input').on('keypress', function(ev) {
 424         if (13 == ev.keyCode) {
 425             handle_new_list_submission();
 426             return false;
 427         }
 428
 429         return true;
 430     });
 431     $('#lists')
 432         .on('click', 'li', ev=>{
 433             select_list($(ev.target).closest('li'));
 434         });
 435     $('#list-edit-trigger').on('click', ev => {
 436         edit_list();
 437         return false;
 438     });
 439     $('#list-items').on('click', '>li .edit-trigger', handle_list_item_edit);
 440     $('#new-list-item button').on('click', handle_new_list_item_submission);
 441     $('#new-list-item input').on('keypress', ev => {
 442         if (13 == ev.keyCode) {
 443             handle_new_list_item_submission();
 444             return false;
 445         }
 446         return true;
 447     });
 448     $('#list-items').on('change', '.list-item-row input[type="checkbox"]', handle_list_item_state_changed);
 449     load_lists();
 450     $('body').on('click', '.ui-widget-overlay', (ev) => {
 451         $(ev.target).siblings('.ui-dialog').find('.ui-dialog-content').dialog('close');
 452     });
 453 });
 454 })();