FOSSASIA 2020 Betrusted / Xous talk https://p.xobs.io/fa20-bt
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fa20-bt/test/test-state.html

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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>reveal.js - Test State</title>
<link rel="stylesheet" href="../css/reveal.css">
<link rel="stylesheet" href="qunit-2.5.0.css">
</head>
<body style="overflow: auto;">
<div id="qunit"></div>
<div id="qunit-fixture"></div>
<div class="reveal" style="display: none;">
<div class="slides">
<section>No state</section>
<section id="slide2" data-state="state1">State 1</section>
<section data-state="state1">State 1</section>
<section data-state="state2">State 2</section>
<section>
<section>No state</section>
<section data-state="state1">State 1</section>
<section data-state="state3">State 3</section>
<section>No state</section>
</section>
<section>No state</section>
</div>
</div>
<script src="../js/reveal.js"></script>
<script src="qunit-2.5.0.js"></script>
<script>
Reveal.addEventListener( 'ready', function() {
QUnit.module( 'State' );
QUnit.test( 'Fire events when changing slide', function( assert ) {
assert.expect( 2 );
var state1 = assert.async();
var state2 = assert.async();
var _onState1 = function( event ) {
assert.ok( true, 'state1 fired' );
state1();
}
var _onState2 = function( event ) {
assert.ok( true, 'state2 fired' );
state2();
}
Reveal.addEventListener( 'state1', _onState1 );
Reveal.addEventListener( 'state2', _onState2 );
Reveal.slide( 1 );
Reveal.slide( 3 );
Reveal.removeEventListener( 'state1', _onState1 );
Reveal.removeEventListener( 'state2', _onState2 );
});
QUnit.test( 'Fire state events for vertical slides', function( assert ) {
assert.expect( 2 );
var done = assert.async( 2 );
var _onState1 = function( event ) {
assert.ok( true, 'state1 fired' );
done();
}
var _onState3 = function( event ) {
assert.ok( true, 'state3 fired' );
done();
}
Reveal.addEventListener( 'state1', _onState1 );
Reveal.addEventListener( 'state3', _onState3 );
Reveal.slide( 0 );
Reveal.slide( 4, 1 );
Reveal.slide( 4, 2 );
Reveal.removeEventListener( 'state1', _onState1 );
Reveal.removeEventListener( 'state3', _onState3 );
});
QUnit.test( 'No events if state remains unchanged', function( assert ) {
var stateChanges = 0;
var _onEvent = function( event ) {
stateChanges += 1;
}
Reveal.addEventListener( 'state1', _onEvent );
Reveal.slide( 0 ); // no state
Reveal.slide( 1 ); // state1
Reveal.slide( 2 ); // state1
Reveal.prev(); // state1
Reveal.next(); // state1
Reveal.slide( 4, 1 ); // state1
Reveal.slide( 0 ); // no state
Reveal.removeEventListener( 'state1', _onEvent );
assert.strictEqual( stateChanges, 1, 'no event was fired when going to slide with same state' );
});
QUnit.test( 'Event order', function( assert ) {
var _onEvent = function( event ) {
assert.ok( Reveal.getCurrentSlide() == document.querySelector( '#slide2' ), 'correct current slide immediately after state event' );
}
Reveal.addEventListener( 'state1', _onEvent );
Reveal.slide( 0 );
Reveal.slide( 1 );
Reveal.removeEventListener( 'state1', _onEvent );
});
} );
Reveal.initialize();
</script>
</body>
</html>