todomvc
Version:
> Helping you select an MV\* framework
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HTML
<html>
<head>
<title>polymer-selector-basic</title>
<script src="../../../platform/platform.js"></script>
<script src="../../../tools/test/htmltest.js"></script>
<script src="../../../tools/test/chai/chai.js"></script>
<link rel="import" href="../../polymer-selector.html">
<style>
.polymer-selected {
background: #ccc;
}
.my-selected {
background: red;
}
</style>
</head>
<body>
<polymer-selector id="selector1">
<div>Item 1</div>
<div>Item 2</div>
<div>Item 3</div>
<div>Item 4</div>
<div>Item 5</div>
</polymer-selector>
<br><br>
<polymer-selector id="selector2" selected="item3" selectedClass="my-selected" valueattr="id">
<div id="item1">Item 1</div>
<div id="item2">Item 2</div>
<div id="item3">Item 3</div>
<div id="item4">Item 4</div>
<div id="item5">Item 5</div>
</polymer-selector>
<script>
var assert = chai.assert;
var async = requestAnimationFrame;
function oneMutation(node, options, cb) {
var o = new MutationObserver(function() {
cb();
o.disconnect();
});
o.observe(node, options);
}
document.addEventListener('polymer-ready', function() {
// selector1
var s = document.querySelector('#selector1');
assert.equal(s.selected, null);
assert.equal(s.selectedClass, 'polymer-selected');
assert.isFalse(s.multi);
assert.equal(s.valueattr, 'name');
assert.equal(s.items.length, 5);
// selector2
s = document.querySelector('#selector2');
assert.equal(s.selected, "item3");
assert.equal(s.selectedClass, 'my-selected');
// setup listener for polymer-select event
var selectEventCounter = 0;
s.addEventListener('polymer-select', function(e) {
if (e.detail.isSelected) {
selectEventCounter++;
// selectedItem and detail.item should be the same
assert.equal(e.detail.item, s.selectedItem);
}
});
// set selected
s.selected = 'item5';
Platform.flush();
oneMutation(s, {attributes: true}, function() {
// check polymer-select event
assert.equal(selectEventCounter, 1);
// check selected class
assert.isTrue(s.children[4].classList.contains('my-selected'));
// check selectedItem
assert.equal(s.selectedItem, s.children[4]);
// selecting the same value shouldn't fire polymer-select
selectEventCounter = 0;
s.selected = 'item5';
Platform.flush();
// TODO(ffu): would be better to wait for something to happen
// instead of not to happen
setTimeout(function() {
assert.equal(selectEventCounter, 0);
done();
}, 50);
});
});
</script>
</body>
</html>