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add gridNavigation config to configure navigation between adjacent vertical stacks

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This commit is contained in:
Hakim El Hattab 2018-12-19 09:38:15 +01:00
parent db9c346b41
commit 665dfb9cd6
2 changed files with 92 additions and 4 deletions
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22
js/reveal.js
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@ -104,6 +104,20 @@
// Change the presentation direction to be RTL
rtl: false,
// When this is enabled, stepping left/right from a vertical stack
// to an adjacent vertical stack will land you at the same vertical
// index.
//
// Consider a deck with six slides ordered in two stacks like this:
// 1.1 2.1
// 1.2 2.2
// 1.3 2.3
//
// If you're on slide 1.3 and navigate right, you will normally move
// from 1.3 -> 2.1. With "grid" enabled the same navigation takes you
// from 1.3 -> 2.3.
gridNavigation: false,
// Randomizes the order of slides each time the presentation loads
shuffle: false,
@ -4678,12 +4692,12 @@
// Reverse for RTL
if( config.rtl ) {
if( ( isOverview() || nextFragment() === false ) && availableRoutes().left ) {
slide( indexh + 1 );
slide( indexh + 1, config.gridNavigation ? indexv : undefined );
}
}
// Normal navigation
else if( ( isOverview() || previousFragment() === false ) && availableRoutes().left ) {
slide( indexh - 1 );
slide( indexh - 1, config.gridNavigation ? indexv : undefined );
}
}
@ -4695,12 +4709,12 @@
// Reverse for RTL
if( config.rtl ) {
if( ( isOverview() || previousFragment() === false ) && availableRoutes().right ) {
slide( indexh - 1 );
slide( indexh - 1, config.gridNavigation ? indexv : undefined );
}
}
// Normal navigation
else if( ( isOverview() || nextFragment() === false ) && availableRoutes().right ) {
slide( indexh + 1 );
slide( indexh + 1, config.gridNavigation ? indexv : undefined );
}
}

74
test/test-grid-navigation.html Normal file
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@ -0,0 +1,74 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>reveal.js - Test Grid</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>0</section>
<section>
<section>1.1</section>
<section>1.2</section>
<section>1.3</section>
<section>1.4</section>
</section>
<section>
<section>2.1</section>
<section>2.2</section>
<section>2.3</section>
<section>2.4</section>
</section>
</div>
</div>
<script src="../js/reveal.js"></script>
<script src="qunit-2.5.0.js"></script>
<script>
Reveal.addEventListener( 'ready', function() {
QUnit.module( 'Grid Navigation' );
QUnit.test( 'Disabled', function( assert ) {
Reveal.right();
Reveal.down();
Reveal.down();
assert.deepEqual( Reveal.getIndices(), { h: 1, v: 2, f: undefined }, 'Correct starting point' );
Reveal.right();
assert.deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: undefined }, 'Moves to top when going to adjacent stack' );
});
QUnit.test( 'Enabled', function( assert ) {
Reveal.configure({ gridNavigation: true });
Reveal.slide( 0, 0 );
Reveal.right();
Reveal.down();
Reveal.down();
assert.deepEqual( Reveal.getIndices(), { h: 1, v: 2, f: undefined }, 'Correct starting point' );
Reveal.right();
assert.deepEqual( Reveal.getIndices(), { h: 2, v: 2, f: undefined }, 'Remains at same vertical index when going to adjacent stack' );
});
} );
Reveal.initialize();
</script>
</body>
</html>