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