third_party/polymer/components-chromium/core-selector/test/multi.html

   1 <!doctype html>
   2 <!--
   3 Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
   4 This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
   5 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
   6 The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
   7 Code distributed by Google as part of the polymer project is also
   8 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
   9 -->
  10 <html>
  11 <head>
  12   <meta charset="UTF-8">
  13   <title>core-selector-multi</title>
  14
  15   <script src="../../webcomponentsjs/webcomponents.js"></script>
  16   <script src="../../web-component-tester/browser.js"></script>
  17
  18   <link rel="import" href="../core-selector.html">
  19
  20   <style>
  21     .core-selected {
  22       background: #ccc;
  23     }
  24   </style>
  25
  26 </head>
  27 <body>
  28
  29   <core-selector id="selector" multi>
  30     <div>Item 1</div>
  31     <div>Item 2</div>
  32     <div>Item 3</div>
  33     <div>Item 4</div>
  34     <div>Item 5</div>
  35   </core-selector>
  36
  37   <script>
  38
  39     var s = document.querySelector('#selector');
  40
  41     suite('multi', function() {
  42
  43       test('honors the multi attribute', function() {
  44         assert.isTrue(s.multi);
  45       });
  46
  47       test('has sane defaults', function() {
  48         assert.equal(s.selected, null);
  49         assert.equal(s.selectedClass, 'core-selected');
  50         assert.equal(s.valueattr, 'name');
  51         assert.equal(s.items.length, 5);
  52       });
  53
  54       test('allows multi-selection', function(done) {
  55         // setup listener for core-select event
  56         var selectEventCounter = 0;
  57         s.addEventListener('core-select', function(e) {
  58           if (e.detail.isSelected) {
  59             selectEventCounter++;
  60           } else {
  61             selectEventCounter--;
  62           }
  63         });
  64         // set selected
  65         s.selected = [0, 2];
  66         asyncPlatformFlush(function() {
  67           // check core-select event
  68           assert.equal(selectEventCounter, 2);
  69           // check selected class
  70           assert.isTrue(s.children[0].classList.contains('core-selected'));
  71           assert.isTrue(s.children[2].classList.contains('core-selected'));
  72           // check selectedItem
  73           assert.equal(s.selectedItem.length, 2);
  74           assert.equal(s.selectedItem[0], s.children[0]);
  75           assert.equal(s.selectedItem[1], s.children[2]);
  76           // tap on already selected element should unselect it
  77           s.children[0].dispatchEvent(new CustomEvent('tap', {bubbles: true}));
  78           // check selected
  79           assert.equal(s.selected.length, 1);
  80           asyncPlatformFlush(function() {
  81             assert.equal(selectEventCounter, 1);
  82             assert.isFalse(s.children[0].classList.contains('core-selected'));
  83             // add selected
  84             s.selected.push(3);
  85             s.selected.push(4);
  86             // check core-select event
  87             asyncPlatformFlush(function() {
  88               assert.equal(selectEventCounter, 3);
  89               done();
  90             });
  91           });
  92         });
  93       });
  94
  95       test('toggle multi to false', function(done) {
  96         // set selected
  97         s.selected = [0, 2];
  98         var first = s.selected[0];
  99         // set mutli to false, so to make it single-selection
 100         s.multi = false;
 101         asyncPlatformFlush(function() {
 102           // selected should not be an array
 103           assert.isNotArray(s.selected);
 104           // selected should be the first value in the old array
 105           assert.equal(s.selected, first);
 106           done();
 107         });
 108       });
 109
 110     });
 111
 112   </script>
 113
 114 </body>
 115 </html>