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 var last_item_action, last_item_action_stamp, item_action_streak = 0;
  12
  13 function debug(...args) {
  14     if (devel_env)
  15         console.debug.apply(console, args);
  16 }
  17
  18 function uri_id(uri) {
  19     var m = uri.match(uri_id_re);
  20     return m ? m[1] : null;
  21 }
  22 function add_list_item(data) {
  23     var item = $('<li>').addClass('list-item-row').data({
  24         'lsl-uri': data.uri,
  25         'lsl-version': data.version,
  26         'lsl-description': data.description,
  27         'lsl-done': data.done});
  28     var cb = $('<input type="checkbox">');
  29     if (data.done) cb.prop('checked', true);
  30     item.append(cb);
  31     item.append($('<span class="description">').text(data.description || ''));
  32     item.append($('<span class="edit-trigger">').text('…'));
  33
  34     $('#list-items').append(item);
  35     $('#list-contents').addClass('have-list-items');
  36 }
  37 function got_lists_version(new_version) {
  38     if (new_version != lists_version)
  39         window.setTimeout(load_lists);
  40 }
  41 function got_list_version(new_version) {
  42     if (new_version != selected_list.data('lsl-version'))
  43         window.setTimeout(
  44             () => load_list_items(selected_list.data('lsl-uri'), selected_list));
  45 }
  46 function load_list_items(uri, target) {
  47     $.get(uri)
  48     .done(item_data => {
  49         target.data('lsl-items', item_data.items);
  50         target.data('lsl-version', item_data.version);
  51
  52         // TODO: merge new items into existing ones
  53         // keep track of the last existing item, and append new one
  54         // after it, prepending if there is no last existing item
  55         // the newly prepended/inserted item becomes the last existing
  56         $('#list-contents').removeClass('have-list-items');
  57         var item_list = $('#list-items').empty();
  58
  59         $.each(item_data.items, (i,item) => {
  60             add_list_item(item);
  61         });
  62
  63         got_lists_version(item_data.lists_version);
  64     });
  65 }
  66 function select_list(new_selected_list) {
  67     if (new_selected_list && selected_list
  68         && new_selected_list.length && selected_list.length
  69         && new_selected_list.get(0) == selected_list.get(0)
  70     )
  71         return;
  72
  73     if (new_selected_list && !new_selected_list.length)
  74         new_selected_list = null;
  75
  76     $('#page').toggleClass('have-lists', !!new_selected_list);
  77
  78     if (selected_list)
  79         selected_list.removeClass('selected');
  80
  81     if (new_selected_list) {
  82         load_list_items(new_selected_list.data('lsl-uri'), new_selected_list);
  83         new_selected_list.addClass('selected');
  84         $('#selected-list-name').text(new_selected_list.data('lsl-name'));
  85     }
  86
  87     selected_list = new_selected_list;
  88 }
  89 function edit_list() {
  90     var d = $('<div>')
  91         .append(
  92             $('<fieldset>')
  93                 .append(
  94                     $('<legend>').text('List name'),
  95                     $('<input type="text" size="10">')
  96                     .on('keypress', (ev) => {
  97                         if (13 == ev.keyCode) {
  98                             save_list(d);
  99                             return false;
 100                         }
 101
 102                         return true;
 103                     })
 104                     .val(selected_list.data('lsl-name'))
 105                 )
 106         );
 107
 108     d.dialog({
 109         dialogClass: 'edit-list-dialog',
 110         autoOpen: true,
 111         modal: true,
 112         title: 'Edit list',
 113         width: 'min(calc(100% - 2em), 20em)',
 114         close: (ev) => {
 115             $(ev.target).dialog('destroy');
 116         },
 117         buttons: [
 118             {
 119                 class: 'btn-delete',
 120                 icon: 'ui-icon-trash',
 121                 click: () => {
 122                     delete_list(d);
 123                 },
 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: 'min(calc(100% - 2em), 20em)',
 339         close: (ev) => {
 340             $(ev.target).dialog('destroy');
 341         },
 342         buttons: [
 343             {
 344                 class: 'btn-delete',
 345                 icon: 'ui-icon-trash',
 346                 click: () => {
 347                     delete_list_item(d, li);
 348                 },
 349             },
 350             {
 351                 icon: 'ui-icon-disk',
 352                 text: 'OK',
 353                 click: () => {
 354                     save_list_item(d, li);
 355                 },
 356             },
 357         ],
 358     });
 359 }
 360 function handle_list_item_edit(ev) {
 361     var li = $(ev.target).closest('li');
 362     edit_list_item(li);
 363     return false;
 364 }
 365 function handle_new_list_item_submission(){
 366     var description = $('#new-list-item input[type="text"]').val().trim();
 367     if (description.length == 0) return;
 368
 369     $.post(selected_list.data('lsl-uri'),
 370         JSON.stringify({
 371             description: description,
 372             done: $('#new-list-item input[type="checkbox"]').prop('checked')
 373         }),
 374     )
 375     .done(new_list_item_submission_done);
 376 }
 377 function reposition_item_multi_action() {
 378     var box = $('#item-multi-action');
 379     var cnt = $('#content');
 380     var cnt_x = cnt.offset().left;
 381     var cnt_w = cnt.css('width').replace('px', '');
 382     var box_w = box.width();
 383
 384     box.css('left', cnt_x + cnt_w / 2 - box_w / 2);
 385 }
 386 function handle_list_item_state_changed(ev) {
 387     var item = $(ev.target).closest('li');
 388     var cb = item.find('input[type="checkbox"]');
 389
 390     var action = cb.prop('checked') ? 'check' : 'clear';
 391     var now = new Date();
 392     var since_last_action = now - last_item_action_stamp;
 393
 394     console.debug(action, last_item_action, now - last_item_action_stamp, item_action_streak);
 395     if (last_item_action
 396         && last_item_action == action
 397         && since_last_action < 3000)
 398     {
 399         item_action_streak ++;
 400
 401         if (item_action_streak > 2
 402             && ( action == 'check' && $('#list-items input[type="checkbox"]').not(':checked').length
 403                 || action == 'clear' && $('#list-items input[type="checkbox"]').filter(':checked').length
 404             )
 405         ) {
 406             var box = $('#item-multi-action')
 407                 .removeClass('checking clearing')
 408                 .addClass(action+'ing')
 409                 .addClass('in-view');
 410             reposition_item_multi_action();
 411             var old_timer = box.data('lsl-hide-timer');
 412             if (old_timer)
 413                 window.clearTimeout(old_timer);
 414
 415             box.data('lsl-hide-timer', window.setTimeout(() => {
 416                 box.removeClass('in-view').data('lsl-hide-timer', false);
 417             }, 3000));
 418         }
 419     }
 420     else {
 421         item_action_streak = 1;
 422     }
 423
 424     last_item_action = action;
 425     last_item_action_stamp = now;
 426
 427     $.ajax(item.data('lsl-uri'),
 428         {   type: 'PUT',
 429             data: JSON.stringify({
 430                 version: item.data('lsl-version'),
 431                 done: cb.prop('checked')})
 432         }
 433     )
 434     .done(function(resp){
 435         item.data('lsl-version', resp.version);
 436         got_lists_version(resp.lists_version);
 437         selected_list.data('lsl-version', selected_list.data('lsl-version')+1);
 438         got_list_version(resp.list_version);
 439     });
 440 }
 441 $(function(){
 442     uri_base = $('#page').attr('lsl-uri-base');
 443     environment = $('#page').attr('lsl-environment');
 444     devel_env = environment == 'development';
 445
 446     $(document).ajaxStart(function(){
 447         $(document).addClass('blocked');
 448         window.setTimeout(
 449             function() {
 450                 $(document).addClass('busy');
 451             }
 452         );
 453     });
 454     $(document).ajaxStop(function(){
 455         $(document).removeClass('busy');
 456         window.setTimeout(
 457             function() {
 458                 $(document).removeClass('blocked');
 459             },
 460             1000 );
 461     });
 462     $.ajaxSetup({contentType: 'application/json'});
 463     $('button, input[type="submit"], input[type="reset"]').each(function(){
 464         var class_prop = $(this).prop('class');
 465         var icon_classes = class_prop.match(ui_icon_class_re);
 466         $(this).button({icon: icon_classes?icon_classes[0]:null});
 467     });
 468
 469     $('#new-list-sidebar-item button').on('click', handle_new_list_submission);
 470     $('#new-list-sidebar-item input').on('keypress', function(ev) {
 471         if (13 == ev.keyCode) {
 472             handle_new_list_submission();
 473             return false;
 474         }
 475
 476         return true;
 477     });
 478     $('#lists')
 479         .on('click', 'li', ev=>{
 480             select_list($(ev.target).closest('li'));
 481         });
 482     $('#list-edit-trigger').on('click', ev => {
 483         edit_list();
 484         return false;
 485     });
 486     $('#list-items').on('click', '>li .edit-trigger', handle_list_item_edit);
 487     $('#new-list-item button').on('click', handle_new_list_item_submission);
 488     $('#new-list-item input').on('keypress', ev => {
 489         if (13 == ev.keyCode) {
 490             handle_new_list_item_submission();
 491             return false;
 492         }
 493         return true;
 494     });
 495     $('#list-items').on('change', '.list-item-row input[type="checkbox"]', handle_list_item_state_changed);
 496     load_lists();
 497     $('body').on('click', '.ui-widget-overlay', (ev) => {
 498         $(ev.target).siblings('.ui-dialog').find('.ui-dialog-content').dialog('close');
 499     });
 500     $(window).on('resize', () => { reposition_item_multi_action(); });
 501     $('#btn-check-all').click((ev) => {
 502         $('#list-items input[type="checkbox"]').not(':checked').prop('checked', true).trigger('change');
 503         $('#item-multi-action').removeClass('in-view');
 504         return false;
 505     });
 506     $('#btn-clear-all').click((ev) => {
 507         $('#list-items input[type="checkbox"]').filter(':checked').prop('checked', false).trigger('change');
 508         $('#item-multi-action').removeClass('in-view');
 509         return false;
 510     });
 511 });
 512 })();