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demo.qmd
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---
title: "Appearance"
subtitle: "For Reveal.js and Quarto"
format:
revealjs:
code-overflow: wrap
code-line-numbers: false
title-slide-attributes:
data-autoappear: '{"h1":["animate__flipInX, slow"],".subtitle":{"animation":"animate__fadeInDown", "speed":"faster", "split":"letters", "delay":"40", "container-delay":"1000"}}'
center: true
theme: dark
navigation-mode: vertical
transition: slide
background-transition: fade
controls-layout: bottom-right
chalkboard: false
menu: false
css: style.css
section-divs: false
link-external-newwindow: true
appearance:
autoappear: true
autoelements: {"ul li": "animate__fadeInLeft"}
appearparents: false
revealjs-plugins:
- appearance
---
# Why?
##
In Powerpoint you can make slides with items that appear automatically and sequentially with effects. Appearance is a plugin for Reveal.js that does the same.
Appearance is easy to set up. It uses [Animate.css](https://animate.style) by Daniel Eden for the animations, with some changes to allow for a non-animated state.
# Examples
Let's check out what Appearance does:
## Let text appear
* [Add it to any text element.]{.animate__bounceInLeft data-appear-parent="true"}
* [Like list items, or headers.]{.animate__bounceInLeft data-appear-parent="true"}
* [It adds some impact.]{.animate__bounceInLeft data-appear-parent="true" }
##
### Let lines appear per word {.animate__fadeInDown data-split="words" data-delay="200"}
### [or...]{.animate__fadeInDown data-delay="600"} [per character]{.animate__fadeInDown .animate__faster data-split="letters" data-delay="75" data-container-delay="800"}
## Let images appear
::: {.row}
![](img/1.jpg){.demoimg .animate__flipInX}
![](img/2.jpg){.demoimg .animate__flipInX}
![](img/3.jpg){.demoimg .animate__flipInX}
![](img/4.jpg){.demoimg .animate__flipInX}
![](img/5.jpg){.demoimg .animate__flipInX}
:::
## Use with fragments
Inside fragments like this [(click next)]{.animate__fadeInDown .faster}:
::: {.row .fragment}
![](img/1.jpg){.demoimg .animate__fadeInDown}
![](img/2.jpg){.demoimg .animate__fadeInDown}
![](img/3.jpg){.demoimg .animate__fadeInDown}
![](img/4.jpg){.demoimg .animate__fadeInDown}
![](img/5.jpg){.demoimg .animate__fadeInDown}
:::
[Or as a fragment itself.]{.fragment .animate__fadeInDown}
## Animate.css animations
Appearance supports the standard entrance/in animations that Animate.css offers. Some examples:
* [.animate__backInDown]{.animate__backInDown data-appear-parent="true"}
* [.animate__bounceInDown]{.animate__bounceInDown data-appear-parent="true" data-delay="1000"}
* [.animate__fadeInLeft]{.animate__fadeInLeft data-appear-parent="true" data-delay="1000"}
* [.animate__flipInX]{.animate__flipInX data-appear-parent="true" data-delay="1000"}
* [.animate__rotateIn]{.animate__rotateIn data-appear-parent="true" data-delay="1000"}
* [.animate__zoomInDown]{.animate__zoomInDown data-appear-parent="true" data-delay="1000"}
* [.animate__jackInTheBox]{.animate__jackInTheBox data-appear-parent="true" data-delay="1000"}
## Additional animations
* [.animate__skidLeft]{.animate__skidLeft data-appear-parent="true"}
* [.animate__skidLeftBig]{.animate__skidLeftBig data-appear-parent="true" data-delay="1000"}
* [.animate__skidRight]{.animate__skidRight data-appear-parent="true" data-delay="1000"}
* [.animate__skidRightBig]{.animate__skidRightBig data-appear-parent="true" data-delay="1000"}
* [.animate__shrinkIn]{.animate__shrinkIn data-appear-parent="true" data-delay="1000"}
* [.animate__shrinkInBig]{.animate__shrinkInBig data-appear-parent="true" data-delay="1000"}
[Note: The shrinkInBlur animation was removed from Appearance, due to performance issues. For backwards compatibility, any element that used it will now use the `shrinkIn` animation instead.]{.small}
# Setup
## Basics
There are really only three steps:
1. [Install Appearance]{.animate__fadeInLeft data-appear-parent="true"}
2. [Edit the markup to add animation classes]{.animate__fadeInLeft data-appear-parent="true"}
2. [Enjoy the animations]{.animate__fadeInLeft data-appear-parent="true"}
## Installation
The following command installs the plugin for use with Quarto:
``` js
quarto add martinomagnifico/quarto-appearance
```
<br>
Now refer to the plugin in the YAML:
``` yaml
format:
revealjs:
//...
revealjs-plugins:
- appearance
```
## Markup (auto)
For _automatic markup_, you can use the [`autoappear`](#autoappear) option.
For _manual markup_, continue to the next slide.
## Markup (manual)
Add an animation class to the elements that you would like to have animated when the slide appears:
<br>
``` markdown
![](img/1.jpg){.animate__fadeInDown}
![](img/2.jpg){.animate__fadeInDown}
```
This is the Quarto way of adding attributes. Check the [regular demo](https:/Martinomagnifico/reveal.js-appearance) to see how you do this in HTML.
To simplify it *in any markup*, you can use the [autoappear](#autoappear) option.
## Markup (manual) for words or letters
To nicely animate the words in a heading, or the letters of a word, add an animation class to it, and add a data-attribute for the kind of split you want:
``` markdown
### [Split into words]{.animate__fadeInDown data-split="words"}
### [Split into letters]{.animate__fadeInDown data-split="letters"}
```
## Quarto and list items
Quarto will wrap the content of a list item in a span if you try to add attibutes to it. *The bulletpoint or list number will then not be animated.* Appearance can fix this:
::: {.row}
::: {style="width: 50%; text-align: center; font-size: smaller"}
1. [This is a list item]{.animate__fadeInLeft}
2. [This is a list item]{.animate__fadeInLeft}
:::
::: {style="width: 50%; font-size: smaller"}
1. [This is a list item]{.animate__fadeInLeft data-appear-parent="true"}
2. [This is a list item]{.animate__fadeInLeft data-appear-parent="true"}
:::
:::
Add `data-appear-parent="true"` to the list item.
```markdown
1. [This is a list item]{.animate__fadeInLeft data-appear-parent="true"}
2. [This is a list item]{.animate__fadeInLeft data-appear-parent="true"}
```
or globally like this:
``` yaml
format:
revealjs:
...
appearance:
appearparents: true
```
# Now change it
You can change the delay, speed and start of animations easily:
## Change the delay
Use `data-delay="*"` on each element, where the wildcard is the delay in microseconds from the appearance of the previous element.
::: {.row}
![](img/1.jpg){.demoimg .animate__fadeInDown data-delay="0"}
![](img/2.jpg){.demoimg .animate__fadeInDown data-delay="200"}
![](img/3.jpg){.demoimg .animate__fadeInDown data-delay="160"}
![](img/4.jpg){.demoimg .animate__fadeInDown data-delay="120"}
![](img/5.jpg){.animate__fadeInDown data-delay="80"}
:::
```markdown
![](img/1.jpg){.animate__fadeInDown data-delay="0"}
![](img/2.jpg){.animate__fadeInDown data-delay="200"}
![](img/3.jpg){.animate__fadeInDown data-delay="160"}
![](img/4.jpg){.animate__fadeInDown data-delay="120"}
![](img/5.jpg){.animate__fadeInDown data-delay="80"}
```
`data-delay` is automatically converted to CSS animation delay.
## Change the animation speed
Use the speed classes from Animate.css to change the speed of the animation:
::: {.row}
::: {.col}
slower ![](img/1.jpg){.demoimg .animate__bounceIn .animate__slower}
:::
::: {.col}
slow ![](img/2.jpg){.demoimg .animate__bounceIn .animate__slow}
:::
::: {.col}
![](img/3.jpg){.demoimg .animate__bounceIn}
:::
::: {.col}
fast ![](img/4.jpg){.demoimg .animate__bounceIn .animate__fast}
:::
::: {.col}
faster ![](img/5.jpg){.demoimg .animate__bounceIn .animate__faster}
:::
:::
```markdown
![](img/1.jpg){.animate__bounceIn .animate__slower}
![](img/2.jpg){.animate__bounceIn .animate__slow}
![](img/3.jpg){.animate__bounceIn}
![](img/4.jpg){.animate__bounceIn .animate__fast}
![](img/5.jpg){.animate__bounceIn .animate__faster}
```
## Change the settings for words or letters
For words and letters, just set the speed and delay as described above. The smaller parts will inherit these settings. Set a `data-container-delay="*"` for a different delay for the container, compared to the standard `delay = 300` from the options.
### [Split into words]{.animate__fadeInDown data-split="words"}
### [Split into letters]{.animate__fadeInDown .animate__faster data-split="letters" data-delay="75" data-container-delay="800"}
<br>
``` markdown
### [Split into words]{.animate__fadeInDown data-split="words"}
### [Split into letters]{.animate__fadeInDown .animate__faster data-split="letters" data-delay="75" data-container-delay="800"}
```
## Change when appearance starts {auto-animate=true}
## Change when appearance starts {auto-animate=true data-appearevent="autoanimate"}
You can use any of the following events:
* [slidetransitionend (default, after the transition)]{.animate__fadeInLeft data-appear-parent="true"}
* [slidechanged (with the transition)]{.animate__fadeInLeft data-appear-parent="true"}
* [auto (with transition, on autoanimate slides)]{.animate__fadeInLeft data-appear-parent="true"}
This can also be set per-slide with data-attributes.
# Autoappear
You can simplify the addition of animation classes:
##
Sometimes (for example with Markdown), adding classes to elements is a chore.
Appearance can automatically add animation classes to specific elements (tags or other selectors) in the presentation (with the option `autoappear`) or per slide (with `data-autoappear`).
## Global auto-appear mode
* This is list item 1
* This is list item 2
``` yaml
format:
revealjs:
...
appearance:
autoappear: true
autoelements: '{"ul li": "animate__fadeInLeft"}'
```
```markdown
## Global auto-appear mode
* This is list item 1
* This is list item 2
```
You can use a simple JSON object, or more elaborate like this: `'{"ul li": {"animation":"animate__fadeInLeft", "speed":"slow", "delay":"100"}}'`.
## Local auto-appear {data-autoappear=true}
This will use the JSON object from the global autoelements option, even if autoappear is false.
* This is list item 1
* This is list item 2
``` yaml
format:
revealjs:
...
appearance:
autoappear: false
autoelements: '{"ul li": "animate__fadeInLeft"}'
```
```markdown
## Local auto-appear {data-autoappear=true}
* This is list item 1
* This is list item 2
```
## Local auto-appear, specified {data-autoappear="{'ul li':'animate__fadeInRight', 'h2': {'animation':'animate__fadeInDown', 'speed':'slow', 'delay':'100'}}"}
You can also add a JSON object to the slide’s `data-autoappear`, with specific elements, their animations class(es) as a string or an object with animations class(es), optional speed and optional delay.
* This is list item 1
* This is list item 2
```markdown
## Local auto-appear, specified {data-autoappear="{'ul li':'animate__fadeInRight', 'h2': {'animation':'animate__fadeInDown', 'speed':'slow', 'delay':'100'}}"}
* This is list item 1
* This is list item 2
```
## Local auto-appear, specified and split {data-autoappear="{'h2': {'animation':'animate__fadeInDown', 'speed':'fast', 'delay':'180', 'split':'words', 'container-delay':'500ms'}, 'h3': {'animation':'animate__fadeInDown', 'split':'letters', 'delay':'80'}}"}
And you can do the same for any animations that you would like to have on lines and words.
### Appearance
```markdown
## Local auto-appear, specified and split {data-autoappear="{'h2': {'animation':'animate__fadeInDown', 'speed':'fast', 'delay':'180', 'split':'words', 'container-delay':'500ms'}, 'h3': {'animation':'animate__fadeInDown', 'split':'letters', 'delay':'80'}}"}
### Appearance
```
# More demos
For more demos go to the [Appearance plugin](https:/Martinomagnifico/reveal.js-appearance) for Reveal.js.
Not all of the options in the regular plugin are available in the Quarto plugin.
# Credits
* [Hakim El Hattab for [Reveal.js](https://revealjs.com)]{.animate__skidLeftBig data-appear-parent="true"}
* [Daniel Eden for [Animate.css](https://animate.style)]{.animate__skidLeftBig data-appear-parent="true"}
* [David Marby & Nijiko Yonskai for [picsum.photos](https://picsum.photos)]{.animate__skidLeftBig data-appear-parent="true"}
* [Photography by [Michael Baird](https://unsplash.com/photos/6WLGMivmV00), [Michael Quinn](https://unsplash.com/photos/scwYrU5hCSM), [Craig Garner](https://unsplash.com/photos/YoadQb46v6k), [Grzegorz Mleczek](https://unsplash.com/photos/RlYsCMbF6EI) and [Fabrice Villard](https://unsplash.com/photos/QrRSm-QbjW0)]{.animate__skidLeftBig data-appear-parent="true"}