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(li) {
  84     li.addClass('editing');
  85
  86     var d = $('<div>')
  87         .append(
  88             $('<fieldset>')
  89                 .append(
  90                     $('<legend>').text('List name'),
  91                     $('<input type="text" size="40">').val(li.data('lsl-name'))
  92                 )
  93         );
  94
  95     d.dialog({
  96         autoOpen: true,
  97         modal: true,
  98         title: 'Edit list',
  99         close: ()=>{
 100             li.removeClass('editing');
 101         },
 102         width: 'max-content',
 103         buttons: [
 104             {
 105                 class: 'btn-delete',
 106                 icon: 'ui-icon-trash',
 107                 text: 'Delete',
 108                 click: () => {
 109                     delete_list(li, 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(li, d);
 121                 },
 122             },
 123         ],
 124     });
 125 }
 126 function delete_list(li, dlg) {
 127     var lists_ver = lists_version;
 128     $.ajax( li.data('lsl-uri'),
 129         { type: 'DELETE' }
 130     )
 131     .done((d)=>{
 132         lists_version = lists_ver + 1;
 133         if (li.hasClass('selected')) {
 134             var new_selected = li.next();
 135             if (new_selected.length) {
 136                 select_list(new_selected)
 137             }
 138             else {
 139                 new_selected = li.prev();
 140                 if (new_selected.length) {
 141                     select_list(new_selected);
 142                 }
 143                 else {
 144                     $('#page').removeClass('have-lists');
 145                 }
 146             }
 147         }
 148
 149         li.remove();
 150         dlg.dialog('destroy');
 151         got_lists_version(d.lists_version);
 152     });
 153 }
 154 function load_lists() {
 155     $.get(uri_base + '/api/v1/list')
 156     .always(()=>{
 157         var splash = $('#splash');
 158         if (splash.length) {
 159             var dur = splash.css('transition-duration');
 160             if (dur && dur.endsWith('s')) {
 161                 dur = 1000 * parseFloat(dur.substring(0, dur.length-1));
 162             }
 163             else
 164                 dur = 1000;
 165
 166             var now = Date.now();
 167             window.setTimeout(() => {
 168                 splash.addClass('done');
 169                 debug('scheduling splash removal in '+dur+'ms');
 170                 window.setTimeout(()=>{ splash.remove(); }, dur);
 171             },
 172                 Math.max(0, 500 - (now - start_time))
 173             );
 174         }
 175     })
 176     .done(data => {
 177         lists_version = data.lists_version;
 178
 179         var lists = $('#lists');
 180         lists.find('>li').addClass('old');
 181
 182         $.each(data.lists, (i, list) => {
 183             var list_id = uri_id(list.uri);
 184             var existing = lists.find('li#list-'+list_id);
 185             if (existing.length) {
 186                 existing.data('lsl-version', list.version)
 187                 .data('lsl-name', list.name)
 188                 .text(list.name)
 189                 .removeClass('old');
 190             }
 191             else {
 192                 var list_item = $('<li>')
 193                     .prop('id', 'list-'+list_id)
 194                     .data('lsl-uri', list.uri)
 195                     .data('lsl-version', list.version)
 196                     .data('lsl-name', list.name)
 197                     .append(
 198                         $('<span class="list-name">')
 199                         .text(list.name)
 200                     )
 201                     .append(
 202                         $('<span class="list-edit-trigger">')
 203                         .append('<span class="ui-icon ui-icon-pencil">')
 204                     );
 205                 lists.append(list_item);
 206             }
 207         });
 208
 209         if (!selected_list || selected_list.hasClass('old'))
 210             select_list(lists.find('>li').eq(0));
 211
 212         lists.find('li.old').remove();
 213     });
 214 }
 215 function new_list_submission_done(data) {
 216     if (data.lists_version != lists_version) {
 217         load_lists();
 218         return;
 219     }
 220
 221     console.log("TODO: easy-add new list");
 222
 223 }
 224 function handle_new_list_submission(){
 225     $.post(uri_base + '/api/v1/list',
 226         JSON.stringify({name:$('input[name="list_name"]').val()}))
 227     .done(new_list_submission_done);
 228     return false;
 229 }
 230 function new_list_item_submission_done(data) {
 231     got_lists_version(data.lists_version);
 232     got_list_version(data.list_version);
 233
 234     var item_data = selected_list.data('items');
 235
 236     var new_item = {
 237         description: $('#new-list-item input[type="text"]').val().trim(),
 238         done: $('#new-list-item input[type="checkbox"]').prop('checked'),
 239         version: 1,
 240     };
 241     item_data.items.push(new_item);
 242     item_data.version = data.version;
 243     add_list_item(new_item);
 244
 245     $('#new-list-item input').val('');
 246 }
 247 function handle_new_list_item_submission(){
 248     var description = $('#new-list-item input[type="text"]').val().trim();
 249     if (description.length == 0) return;
 250
 251     $.post(selected_list.data('lsl-uri'),
 252         JSON.stringify({
 253             description: description,
 254             done: $('#new-list-item input[type="checkbox"]').prop('checked')
 255         }),
 256     )
 257     .done(new_list_item_submission_done);
 258 }
 259 function handle_list_item_state_changed(ev) {
 260     var item = $(ev.target).closest('li');
 261     var cb = item.find('input[type="checkbox"]');
 262     var item_data = item.data('item');
 263
 264     $.ajax(item_data.uri,
 265         {   type: 'PUT',
 266             data: JSON.stringify({
 267                 version: item_data.version,
 268                 done: cb.prop('checked')})
 269         }
 270     )
 271     .done(function(resp){
 272         item_data.version = resp.version;
 273         got_lists_version(resp.lists_version);
 274         got_list_version(resp.list_version);
 275     });
 276 }
 277 $(function(){
 278     uri_base = $('#page').attr('lsl-uri-base');
 279     environment = $('#page').attr('lsl-environment');
 280     devel_env = environment == 'development';
 281
 282     $(document).ajaxStart(function(){
 283         $(document).addClass('blocked');
 284         window.setTimeout(
 285             function() {
 286                 $(document).addClass('busy');
 287             }
 288         );
 289     });
 290     $(document).ajaxStop(function(){
 291         $(document).removeClass('busy');
 292         window.setTimeout(
 293             function() {
 294                 $(document).removeClass('blocked');
 295             },
 296             1000 );
 297     });
 298     $.ajaxSetup({contentType: 'application/json'});
 299     $('button, input[type="submit"], input[type="reset"]').each(function(){
 300         var class_prop = $(this).prop('class');
 301         var icon_classes = class_prop.match(ui_icon_class_re);
 302         $(this).button({icon: icon_classes?icon_classes[0]:null});
 303     });
 304
 305     $('#new-list-sidebar-item button').on('click', handle_new_list_submission);
 306     $('#new-list-sidebar-item input').on('keypress', function(ev) {
 307         if (13 == ev.keyCode) {
 308             handle_new_list_submission();
 309             return false;
 310         }
 311
 312         return true;
 313     });
 314     $('ul#lists')
 315         .on('click', 'li', ev=>{
 316             select_list($(ev.target).closest('li'));
 317         })
 318         .on('click', 'li > span.list-edit-trigger', ev => {
 319             edit_list($(ev.target).closest('li'));
 320             return false;
 321         });
 322     $('#new-list-item button').on('click', handle_new_list_item_submission);
 323     $('#new-list-item input').on('keypress', ev => {
 324         if (13 == ev.keyCode) {
 325             handle_new_list_item_submission();
 326             return false;
 327         }
 328         return true;
 329     });
 330     $('#list-items').on('change', '.list-item-row input[type="checkbox"]', handle_list_item_state_changed);
 331     load_lists();
 332 });
 333 })();