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