Building the Media Block in ReactJS

BUILDING THE MEDIA
BLOCK IN REACTJS
the API is an interface that needs to be designed
https://www.ﬂickr.com/photos/darpi/212323100/in/photolist-jLdg7-4zEiwa-nwFCR-cZVtBE-4NHtnv-7daytd-pce3y-4NH3fh-5TLS72-58aMX7-58aMVN-a3826y-gVDVKr-8DRhUB-nEdkNf-6tnApQ-
fqJRqv-4NMHx7-7fUPoM-cNu2W-8etirE-o7PZA-wsB4L-7ABatu-8LyEF5-7iEjwY-3faCd1-9Gn1fF-4qYRms-JUKbE-7B97bb-69Uer5-5DQMzG-f4ZgsG-7TvUJp-5zyhEh-65naZh-nBkNs-5eCcAF-sErjv-4ePHGY-6kV1Q4-
nxWYX-dpGR5-55vgqd-5scyot-5t7uJJ-nLQn5y-9Njbu-79B4aw

@STUBBORNELLA
twitter really is the best way to reach me…

WHAT WILL WE COVER?
❖ What is a media block?

❖ Why use ReactJS

❖ Making a media block in ReactJS

WHAT IS THE MEDIA
BLOCK?
let’s look at an example from Facebook

ALL OF THESE ARE THE
SAME OBJECT

WHAT DO WE KNOW?
!
❖ Can be nested

❖ Optional right button

❖ Must clearﬁx

WHAT DO WE KNOW?
!
❖ Allows top, middle, or
bottom alignment

WHAT DON’T WE KNOW?
❖ Image width and decoration vary

❖ Right content is unknown

❖ Width unknown

A FEW LINES OF HTML...
<div class="media attribution">
<a href="http://twitter.com/stubbornella" class="img">
<img src="mini.jpg" alt="Stubbornella" />
</a>
<div class="bd">@Stubbornella 14 minutes ago</div>
</div>

Building the Media Block in ReactJS

I <3 HTML, WHY USE
REACT?
❖ html consistency (modal debugging)

❖ smaller api (fewer breaking changes)

❖ don’t need to go everywhere a component
was used to update the dom if it changes

❖ lightning fast dom updates when data
changes

❖ not managing those updates manually

❖ simpler APIs (tabs example)

I CAN’T
COVER
EVERYTHING
So do Ryan Florence’s
tutorials:

https://github.com/
ryanﬂorence/react-training/

https://www.ﬂickr.com/photos/wscullin/3770015991/in/photolist-6K9jpH-4mbNmG-4Cryx-6K9jC4-9hYhWK-dexZ3L-bpV8UA-6K9jb8-2aRBU9-c2mfZu-8desRa-ntKGaS-8ZxBba-7RVQRi-7AbLTM-dMTqW3-4866mH-rjNaZL-7MP9RU-
dhfQ5N-rfCB9g-nBshnQ-7Xn7f-87asnj-84R7FU-sepy36-dtEmrp-rhsh7A-hVCY8u-4m7NmB-qqiNK6-bMLUPp-qY4LbS-q1prK-5WoP4f-Ftxe-4mbHVY-jB4t16-5qgm94-5WjwED-7vS6fV-5WoP4N-biVihz-9KsFUo-9KpQVF-9KpQMz-
BUILDING THE MEDIA
BLOCK IN REACT
APIs are an interface that needs to be designed

WHAT ARE THE ELEMENTS
OF A REACT INTERFACE
❖ Elements

❖ Attributes

❖ Nested children

❖ Data
Sounds a lot like html, right?

HOW DO YOU MAKE A
MEDIA COMPONENT?
in React
Code
var Media = React.createClass({
!
});

SO THEN, HOW WOULD
YOU USE IT?
It’s kind of like HTML, it’s called jsx
<Media>
My very first React component!
</Media>

BUT, WE NEED TO EXPORT
the Media component, so it can be used in other ﬁles
module.exports = {
Media: Media
};

DESCRIBE IT WITH A
RENDER FUNCTION
This tells the browser what HTML to render.
var Media = React.createClass({
render: function () {
return (
<p>
{this.props.children}
</p>
);
}
});
just render a paragraph, for now
tell React where to
render children

WHAT
!
!
!
IS GENERATED?
https://www.ﬂickr.com/photos/f-l-e-x/3096005116/in/photolist-5HzQsy-ah1UJ3-9WjzQW-q6xrU5-eQkJhu-oWah5L-noSbAV-9nNZaQ-5XZ3To-9gi7Rx-eMzU1y-9gb3m8-eQ8LqD-9WSkjF-9WSkhK-9zurtr-9WSk3X-eQkasL-eQ8GQ6-
gi65Qe-9gbgVc-9geLWE-9gbiwR-k3TpbP-9EiwTi-bMTAYe-aYNGWB-6VTDDM-96t4ms-9s4Jas-bsjtmK-edG4Dq-rFb2Q-aZYKCH-Paes6-sd9Vtx-eg9fuW-9rYCnp-edgbX5-bmrzPv-9qA9iA-aMgUmz-s1AMwV-9zurqp-gXd9UH-
iEyyC-3NaTMa-bodPpW-dLeWjL-bxHrbz

LET’S TRY IT!
Sweet, this is gonna be rad.
<Media>
This text is our component’s children!
</Media>
!
!
!
!
<p>
</p>

LET’S TRY IT!
<Media>
</Media>
!
!
!
!
<p>
</p>
When React renders that
component we get this html

LET’S TRY IT!
<Media>
</Media>
!
!
!
!
<p>
</p>
{this.props.children}
When React renders that
component we get this html

NOT VERY USEFUL, RIGHT?
You'd never use react to render a simple paragraph because it
already understands <p> tags, you can just use them!

LET’S BUILD AN ACTUAL
MEDIA BLOCK
Step 1:Add the left image

SO, WHAT DID WE TRY
FIRST?
https://www.ﬂickr.com/photos/mstewartphotography/6195718653/in/photolist-aruFip-3Ym2sP-d5ipmU-61ivfM-2SmfSo-eMWyyv-7Tx3yN-p7xVZN-5LExX5-dG1RK2-86LsMW-6TDV5Y-9isMj1-cJuUm-4v2NE-
amKvge-61TfaY-61PcSp-61nGEd-86FasK-qrz8VS-4bGoKp-77DPsN-7NeZKn-botCkn-8vpoEE-oTAKWV-5Sz1Fv-a5oF29-86Hf14-aS9vmZ-a8M5q6-a8Mh8k-7AKzoA-86HcPz-61HM17-7AFRcK-a8LXht-5c5LvE-a8LZXX-61Hb8A-
fJgHuw-86LhDq-86Lmch-3jzdZ-5mYENE-8UMWoM-bx1iUr-p9jsSa-a865Ji

TONS OF ATTRIBUTES
What could go wrong? ;)
https://www.ﬂickr.com/photos/ilo_oli/5856288807/in/photolist-jpnSsc-bp1mTF-iC3JNn-feu2hV-feJdEw-dCsd6V-aQmwUk-qJvwYx-qKHp7N-qKJtpL-pMFnAC-9XxWkr-qKJEV1-q6hte9-qZZXHG-q6hp8d-qKHchA-qKJt8U-bp1mv2-
b6LSWT-bKfSon-kxWCNt-b6LNN8-b8Vpk6-ehScwd-c5CMgq-qKJcqw-r3iaXK-pMieGe-9ZUFNi-aD4zaE-fDwLBF-9Vv1CF-kzarYi-9ovVLy-rVLApS-fDwKki-b5sxAg-fskG7P-bUUme1-bKgdD6-c5CMiW-a1wsSP-4u7U5a-dtv95k-dtvKP6-
dtBtwJ-dtvrRR-dtBm2s-abcAqR

CREATE A SOURCE
ATTRIBUTE
We’ll use it in our render function to set the src of the image
<Media leftImageSource='http://placehold.it/50x50'>
Media block content
</Media>
React props are a
lot like HTML
attributes

BUT WAIT, THE IMAGE CAN
BE A LINK
Sometimes…

SO, LET’S ADD AN HREF
ATTRIBUTE
<Media
leftImageSource='http://placehold.it/50x50'
leftImageHref='http://www.google.com'>
Media block content
</Media>
Our render function will
make this into a link
wrapper (if it is set)

THE IMAGE CAN BE
VERTICALLY ALIGNED

ADD AN ALIGNMENT
ATTRIBUTE
<Media
leftImageHref='http://www.google.com'
leftImageAlignment='middle'>
Media block content
</Media>
vertical alignment, could be
top, middle or bottom

WE NEED AN ALT
ATTRIBUTE
<Media
leftImageAlignment='middle'
leftImageAlt="profile photo">
Media block content
</Media>
Our render function will make
this into an alt attribute on the
<img> tag

WE NEED A HEIGHT AND
WIDTH
<Media
leftImageAlt="profile photo"
leftImageHeight="50px"
leftImageWidth="50px">
Media block content
</Media>
Explicit height and width
allow the browser to do a
single rendering/painting
pass

SET THE GUTTER BETWEEN
IMAGE AND CONTENT
with the spacing attribute
<Media
leftImageWidth="50px"
leftImageSpacing="medium">
Media block content
</Media>
For when the 10px default
spacing isn’t right, like a tiny
icon with text

PROPERTIES OF THE MEDIA
rather than its images

FOR EXAMPLE, IT’S
RESPONSIVE
via the stacksize (breakpoint) attribute
<Media
leftImageSpacing="medium"
stackSize='medium'>
Media block content
</Media>
stack size puts the image
above the text at the
breakpoint

THIS IS GETTING
OUT OF HAND!
But we forgot something, the media block can have a right
image

ADD THE RIGHT IMAGE
PROPERTIES
This is out of control, we are going the wrong way!
<Media
rightImageSource='http://placehold.it/50x50'
rightImageHref='http://www.google.com'
rightImageAlignment='middle'
rightImageAlt="profile photo"
rightImageHeight="50px"
rightImageWidth="50px"
rightImageSpacing="medium"
bodyAlignment='middle'
stackSize='medium'>
Media block content
</Media>
right image
props

PROS/CONS
❖ It’s very explicit, we know
what each thing does
What works?
❖ We're basically recreating
html in React, yuck! (we
shouldn’t make a new
different alt attribute!

❖ We have image properties
and media properties all
mixed up

❖ We have too many
properties
What doesn’t work?

SO, WHAT DID WE TRY
NEXT?

JSON ALL THE THINGS
https://www.ﬂickr.com/photos/bike/4797449644/in/photolist-8iWbD3-5HPWhF-QyKg5-eVYyjt-3meRNg-5HPW94-4HwYMz-utah8-3qvXS-aqsJtx-eyQK4T-42P9p1-7Th995-5oKgDS-5mJEJe-9bt9At-4zbwwo-8vDr8Z-7konhy-
BhrJ9-5zHQ7E-bobveq-DmrMg-3qvNs-5HPW1P-qtLJmp-5ZCPcW-9QuNBj-5HUdgS-9thCcq-6FmTKV-7QgAua-6DZyzu-gkukag-apwsgp-8hWccC-4U7EX6-pfaKPb-hvM3q-asXuSH-at18RL-asXuDV-asXuC4-9ys6M7-phFVSp-
dkdPkb-86toqn-dzVg-zVaLA-cDsK7N

OUR IMAGES AS JSON
kinda weird, but it might work…
var images = [
{
"src": "http://placehold.it/50x50",
"href": "http://www.google.com",
"alignment": "middle",
"alt": "profile photo",
"height": "50px",
"width": "50px"
},
{
"src": "http://placehold.it/50x50",
"href": "http://www.google.com",
"alignment": "middle",
"alt": "profile photo",
"height": "50px",
"width": "50px"
}
];

JSON IN THE MEDIA
passed in as another property
<Media
images={images}
stackSize='medium'>
Media block content
</Media>

JSON IN THE MEDIA
<Media
images={images}
stackSize='medium'>
Media block content
</Media>
{curly braces} mean it’s a JavaScript
variable rather than a string

JSON IN THE MEDIA
<Media
images={images}
stackSize='medium'>
Media block content
</Media>
json goes into the
images attribute
{curly braces} mean it’s a JavaScript
variable rather than a string

What works? What doesn’t work?
PROS/CONS
❖ abstraction of passing in
JSON means all the code
isn't in the same place

❖ weird to have JSON in the
middle of what looks like
markup

❖ still reinventing html
attributes of an <img> tag
❖ cleaner separation of
concerns (media takes care
of media stuff, rather than
the properties of its
children)

WHAT DID WE DO NEXT?

PARSING CHILDREN
We decided to try including the images as children
https://www.ﬂickr.com/photos/i-am-mclovin/16535518502/in/photolist-rcbRyA-nshV4n-eAaqTz-bCfUFZ-jH4tBF-pctQQD-qNmfZS-eT3GMZ-bTJsji-N8LkW-iCxgoA-7JDTp2-mPGu7V-dV4m7G-igpkaV-dRobZv-mnUN9i-igoYgJ-bCzBBi-
f9tdxa-oMiWTE-b6LMzz-rcTY6S-dYq12b-qUh6hV-f6oFCx-pmwC9Z-hNLucH-moYnBt-6uGwja-aRrBm4-mPGGDB-igp6YC-f8b3QR-igpkXB-igoY3C-o62zzh-iC3JNn-9217QQ-D3JPG-pcHyUy-pprMfU-igoJAg-hgRxSL-pqomg9-
ahQDpD-4LkbKg-hNLcDy-igoJb8-9STs34

PARSING CHILDREN
better, everything is normal html! But, it has a few drawbacks
<Media>
<img src='http://placehold.it/50x50'
href='http://www.google.com' alignment='middle'
alt="profile photo" height="50px" width="50px" >
<p>My media content</p>
<img src='http://placehold.it/50x50'
alt="profile photo" height="50px" width="50px" >
</Media>

PROS/CONS
❖ The images and body
content need to be in a very
particular order, it seems
weird to expose that to the
user

❖ Violates the "build
components you can use
without understanding CSS”
principle
❖ Normal HTML

❖ Facebook does it this way

WHAT *ELSE* DOESN’T
WORK?
❖ We could loop over children and reorder them, but how do
we tell the difference between content images and media
images?

❖ We were still discovering React, and didn't know how to loop
over children yet

❖ React provides handy error messages and property validations.
We would lose out on that if we made the images children

❖ Facebook's images aren't optional, so it's a different case

REACT BUILT-IN <IMG>
COMPONENT
In react, everything is a component.

FIRST, WE MAKE OUR
IMAGES
var leftImage = <img src='http://placehold.it/
50x50' href='http://www.google.com'
alignment='middle' alt="profile photo"
height="50px" width="50px">;
!
var rightImage = <img src='http://placehold.it/
50x50' href='http://www.google.com'
alignment='middle' alt="profile photo"
height="50px" width=“50px">;

NEXT, WE MAKE OUR
MEDIA OBJECT
this looks similar to the JSON example
<Media
leftImage={leftImage}
rightImage={rightImage}
stackSize='medium'>
Media block content
</Media>

NEXT, WE MAKE OUR
MEDIA OBJECT
this looks similar to the JSON example
<Media
leftImage={leftImage}
rightImage={rightImage}
stackSize='medium'>
Media block content
</Media>
left and right images are
passed into attributes

YOU CAN EVEN WRITE IT
like this if you really want to
<Media
leftImage={<img src='http://placehold.it/50x50'
alt="profile photo" height="50px" width="50px">}
stackSize='medium'>
Media block content
</Media>
image component directly in
the attribute property

PROS/CONS
❖ HTML inside an attribute (in
the latter example) is a bit
odd, though it does have
advantages.
❖ React passes default html
attributes in to the resulting
img tag, so we don't have to
do anything special with
height, width, src, aria and alt.

❖ We separate concerns and
the image takes care of it's
own properties

❖ No need to parse content

WHAT *ELSE* DOESN’T
WORK?
❖ href will be passed through. So our image will have an href
attribute. I like clean html, and that feels weird to me!
<div class="media">
<a href="styleguide.pivotal.io">
<img href="styleguide.pivotal.io" />
...
Yuck!

WE CONSIDERED GOING
BACK TO PROPERTIES…
but decided we should make our own <img> wrapper
<Media leftImageHref="styleguide.pivotal.io">
to property or not to property?

CUSTOM IMAGE
COMPONENT
And another component was born…
https://www.ﬂickr.com/photos/eltonharding/522073772/in/photolist-N8LkW-dLnt39-dsdYRQ-qcf3KQ-rgojpc-dsdWxA-dRxje9-iAgtmB-aaTYBU-mgGFrk-d3TMAf-opZhPw-nbi6ut-gMDt1W-adGAGZ-j8HqHK-gAt6ec-mc944B-
nEMWpG-oQkVQ4-qR9xvi-gSVfC5-oUurRb-9jGTJD-nWUZza-e5NeHJ-aTYLCT-dTTRha-rp3zLC-qn7i8t-hQxDrG-9qcih5-sn5TTi-9aQfXm-nsgfeC-niFxPL-dRxjy7-9Ry7C3-p8VRa4-noA5cx-oovJdV-kLSLxL-dpgFWM-rhZ9Ri-
dRxkm3-9qResk-kGDeJb-bprRNw-oCC5tt-oCX7iY

GOAL: OUTPUTS A SIMPLE
<IMG> TAG
but won't pass through attributes

that don't make sense like href

STEP 1: CREATE THE IMAGE
COMPONENT
var Image = React.createClass({
!
});

STEP 2: EXPORT THE IMAGE
the same way we did the Media component
module.exports = {Image};

STEP 3: GET ITS PROPERTIES
and render an image
render() {
var {href, src, children, className, ...other} = this.props;
!
var image = <img {...other} src={src} className={classes}>;
!
return href ? <a {...{href}}>{image}</a> : image;
}
});

and render an image
render() {
!
!
}
});
get the properties we need

and render an image
render() {
!
!
}
});
build the image from our properties

and render an image
render() {
!
!
}
});
build the image from our properties
if we have a link, wrap the image in an <a> tag

STEP 4: MAKE IT
RESPONSIVE
by handling the responsive boolean
render() {
var {responsive, href, src, children, className, ...other} = this.props;
!
var image = <img {...other} src={src}>;
}
});

STEP 4: MAKE IT
RESPONSIVE
by handling the responsive boolean
render() {
!
var image = <img {...other} src={src}>;
}
});
get the responsive property

STEP 4: MAKE IT
RESPONSIVE
and setting the img-responsive class if the boolean is true
render() {
!
var classes = classnames({'img-responsive': responsive}, className);
!
!
!
!
!
!
!
var image = <img {...other} src={src} className={classes}>{children}</img>;
}
});

STEP 4: MAKE IT
RESPONSIVE
render() {
!
!
!
!
!
!
!
!
}
});
add this class
if this evaluates
to true

STEP 4: MAKE IT
RESPONSIVE
render() {
!
!
!
!
!
!
!
!
}
});
add this class
if this evaluates
to true
then, put the class
on the image

STEP 5: VALIDATE
PROPERTIES
propTypes: {
responsive: types.bool,
href: types.string,
src: types.string.isRequired
},
!
render() {
!
}
});

STEP 5: VALIDATE
PROPERTIES
propTypes: {
href: types.string,
},
!
render() {
!
}
});
responsive has to
be true or false

STEP 5: VALIDATE
PROPERTIES
propTypes: {
href: types.string,
},
!
render() {
!
}
});
the href is a string

STEP 5: VALIDATE
PROPERTIES
propTypes: {
href: types.string,
},
!
render() {
!
}
});
src is a string and
required

OUR “AH-HA” MOMENT
Users are still needing to specify too many things to get this
component to work, they might as well just write html!

SO, WHAT DID WE DO
NEXT?

ELEMENTS FTW
we can simplify our interface further
https://www.flickr.com/photos/rejik/14681743931/in/photolist-onnLY4-nPYfhm-ed6PWM-bvWmjA-mMGE1V-j88ToM-ngTbpk-nUg38a-9n1hgv-4KZr2Z-nucMef-dd5exw-9eyaqy-8QWK1i-eaTuFL-4RbvFX-7kiwo3-7NqP2a-4R1KYB-
mZEx1J-5iV12q-39v9f8-bqt2rx-7zvWs-9eyamJ-7JKZAh-hiwiDa-poG8fx-ehZRGj-684GeT-pPeQGL-efRP9f-icXKJY-aNxWqT-9niyKk-ouarpw-bmC5SK-7s5DNV-bqt3F8-bqsZ24-mZCLWp-86YqXk-e6ERub-bqtEL8-8K3pJf-
kik4tg-8yYivi-8fi3Ep-dVohpu-fzmggH
https://www.flickr.com/photos/rejik/14681743931/in/photolist-onnLY4-nPYfhm-ed6PWM-bvWmjA-mMGE1V-j88ToM-ngTbpk-nUg38a-9n1hgv-4KZr2Z-nucMef-dd5exw-9eyaqy-8QWK1i-eaTuFL-4RbvFX-7kiwo3-7NqP2a-4R1KYB-
mZEx1J-5iV12q-39v9f8-bqt2rx-7zvWs-9eyamJ-7JKZAh-hiwiDa-poG8fx-ehZRGj-684GeT-pPeQGL-efRP9f-icXKJY-aNxWqT-9niyKk-ouarpw-bmC5SK-7s5DNV-bqt3F8-bqsZ24-mZCLWp-86YqXk-e6ERub-bqtEL8-8K3pJf-
kik4tg-8yYivi-8fi3Ep-dVohpu-fzmggH

DESIGNERS ONLY USE 2
KINDS OF ALIGNMENT
❖ Traditional media with everything top aligned

!
!
!
❖ “Flag” component a la Harry Roberts middle aligns

WE MADE THESE TWO USE
CASES DEAD SIMPLE
❖ We changed the media component to default to top
alignment if nothing else was speciﬁed.

❖ We created the <flag> component
<Flag leftImage={refreshImage}>
refresh
</Flag>

PROS/CONS
❖ engineers don't always know
what the ﬂag object is,
documentation and teaching
help
❖ with Flag and Media, we no
longer need to specify
alignment unless we want
something weird

ARE ANY OF THESE
WRONG?
No, absolutely not.
https://gist.github.com/stubbornella/e97662e4a197eb9a534a

CHARTS
loop over children
https://www.ﬂickr.com/photos/sidereal/3326112973/in/photolist-AKC4i-9YVVYN-6EiwN6-GadYk-a67Nur-5VXHT1-Fv7K6-aozvYE-6fp6gc-6FzLjQ-fKvtt-2JGK9-bqeuyX-3jcvLj-Ljyy3-6kUXKM-
bVyHMC-4dDwYk-5CGecv-6DUvgk-64Vcvp-8cK4x4-6b5yLD-jDwYG-wnfrN-vdeo8-8343Sa-dRCSgx-83wSzz-5xtVxe-5xyrZd-5VDSw6-
fXTYR-82Dnu2-5VDSwa-7MNruk-81biBH-5e3irn-5e3i4T-6mxH7A-5m93Dg-5pi6WC-5uvUeA-6n89sp-c465FQ-6SDa5S-5AbJnS-cN17Zf-KGVTi-7yvvmH

var sortableCols = [
{
name: 'name',
title: 'Name',
sortable: true
},
{
name: 'instances',
title: 'Instances',
sortable: true,
align: 'center'
},
{
name: 'cpu',
title: 'CPU',
sortable: true,
align: 'right'
},
{
name: 'synergy',
title: 'Synergy',
align: 'left'
}
]

TABS IN BOOTSTRAP
<div role="tabpanel">
!

<ul class="nav nav-tabs" role="tablist">
<li role="presentation" class=“active">
<a href="#home" aria-controls="home" role="tab" data-toggle=“tab">Home</a>
</li>
<li role=“presentation">
<a href="#profile" aria-controls="profile" role="tab" data-toggle=“tab”>
Profile</a>
</li>
</ul>
!

<div class="tab-content">
<div role="tabpanel" class="tab-pane active" id="home">...</div>
<div role="tabpanel" class="tab-pane" id="profile">...</div>
</div>
!
</div>

TABS IN REACT
<SimpleTabs defaultActiveKey={1}>
<Tab eventKey={1} tab="Home">
...
</Tab>
<Tab eventKey={2} tab="Profile">
...
</Tab>
</SimpleTabs>

https://www.ﬂickr.com/photos/wscullin/3770015991/in/photolist-6K9jpH-4mbNmG-4Cryx-6K9jC4-9hYhWK-dexZ3L-bpV8UA-6K9jb8-2aRBU9-c2mfZu-8desRa-ntKGaS-8ZxBba-7RVQRi-7AbLTM-dMTqW3-4866mH-rjNaZL-7MP9RU-
dhfQ5N-rfCB9g-nBshnQ-7Xn7f-87asnj-84R7FU-sepy36-dtEmrp-rhsh7A-hVCY8u-4m7NmB-qqiNK6-bMLUPp-qY4LbS-q1prK-5WoP4f-Ftxe-4mbHVY-jB4t16-5qgm94-5WjwED-7vS6fV-5WoP4N-biVihz-9KsFUo-9KpQVF-9KpQMz-
IT’S A DESIGN DECISION
each component is different

KEEP LOOPING BACK
change the interface until it works well

GOOD DESIGN PRINCIPLES
❖ Many drawers -Tom O

❖ Set good defaults

❖ User shouldn’t need to understand CSS to use it

❖ Make tiny components with one job (same as CSS)

❖ Allow ﬂexibility

❖ Prefer a complex implementation over a complex interface
what has worked for us

WHO ARE YOUR USERS?
component creators and maintainers, contributors, developers
building features, actual product users
https://www.ﬂickr.com/photos/fabiansociety/16300828766/in/photolist-qQs1tQ-qAa8pJ-pVJmYw-qxNcH4-qAaDuJ-qSHJsr-5SDe5H-josG7R-dxrFDm-e6S4TN-fddCLi-po7JuN-d21PZN-ax7LAK-qBLEie-dEMphp-byfU17-nPjAPc-eZ7ooX-
ctHbf5-g5QFS-naVVhZ-cFgo6s-akEb2Q-qUQi3c-aGJ83i-627cGv-aRFFNx-nSyXpr-dyXFU7-aupkvk-buYgB2-nj7Xyv-jHSXR5-9eAqzK-eNqYdm-a4GaUk-qiFrdF-dy1QsG-bPqzrk-9dEUm7-n7cmgE-gJNeKz-nigszh-mi4QjT-s76Yxa-

USE ALL THE TOOLS IN
YOUR TOOLBOX
❖ Elements (built in and custom)

❖ Attributes (simple and objects)

❖ JSON

❖ Children

WE OPEN SOURCED
EVERYTHING
Please do give us feedback

npm: https://www.npmjs.com/search?q=pui

github: github.com/pivotal-cf/pivotal-ui

Building the Media Block in ReactJS

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