From 6dde00fb2e3cee979d6b2fafb1c0adc1443d6c14 Mon Sep 17 00:00:00 2001
From: Hakim El Hattab
Date: Thu, 18 May 2017 14:11:48 +0200
Subject: improve controls on touch devices
---
css/reveal.scss | 40 +++++++++++++++++++++++-----------------
1 file changed, 23 insertions(+), 17 deletions(-)
(limited to 'css/reveal.scss')
diff --git a/css/reveal.scss b/css/reveal.scss
index 31f235f..b82cebc 100644
--- a/css/reveal.scss
+++ b/css/reveal.scss
@@ -251,22 +251,22 @@ $controlArrowSize: 3.6em;
$controlArrowSpacing: 1.4em;
$controlArrowLength: 2.6em;
$controlArrowThickness: 0.5em;
+$controlsArrowAngle: 45deg;
+$controlsArrowAngleHover: 40deg;
+$controlsArrowAngleActive: 36deg;
-.reveal .controls {
- $angle: 45deg;
- $angleHover: 40deg;
- $angleActive: 36deg;
- $spacing: 12px;
-
- @mixin arrowTransform( $angle ) {
- &:before {
- transform: translateX(($controlArrowSize - $controlArrowLength)/2) translateY(($controlArrowSize - $controlArrowThickness)/2) rotate( $angle );
- }
+@mixin controlsArrowTransform( $angle ) {
+ &:before {
+ transform: translateX(($controlArrowSize - $controlArrowLength)/2) translateY(($controlArrowSize - $controlArrowThickness)/2) rotate( $angle );
+ }
- &:after {
- transform: translateX(($controlArrowSize - $controlArrowLength)/2) translateY(($controlArrowSize - $controlArrowThickness)/2) rotate( -$angle );
- }
+ &:after {
+ transform: translateX(($controlArrowSize - $controlArrowLength)/2) translateY(($controlArrowSize - $controlArrowThickness)/2) rotate( -$angle );
}
+}
+
+.reveal .controls {
+ $spacing: 12px;
display: none;
position: absolute;
@@ -323,14 +323,14 @@ $controlArrowThickness: 0.5em;
width: $controlArrowSize;
height: $controlArrowSize;
- @include arrowTransform( $angle );
+ @include controlsArrowTransform( $controlsArrowAngle );
&:hover {
- @include arrowTransform( $angleHover );
+ @include controlsArrowTransform( $controlsArrowAngleHover );
}
&:active {
- @include arrowTransform( $angleActive );
+ @include controlsArrowTransform( $controlsArrowAngleActive );
}
}
@@ -438,14 +438,20 @@ $controlArrowThickness: 0.5em;
bottom: $controlArrowSpacing;
}
+// Invert arrows based on background color
.reveal.has-dark-background .controls {
color: #fff;
}
-
.reveal.has-light-background .controls {
color: #000;
}
+// Disable active states on touch devices
+.reveal.no-hover .controls .controls-arrow:hover,
+.reveal.no-hover .controls .controls-arrow:active {
+ @include controlsArrowTransform( $controlsArrowAngle );
+}
+
// Edge aligned controls layout
@media screen and (min-width: 500px) {
--
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