Web Forms 2.0

New form elements & Attributes in HTML5

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Web Forms 2.0

New form elements & Attributes in HTML5

Estelle Weyl

www.standardista.com

@estellevw

HTML 4 <Input> Types

button
checkbox
file*
hidden
image
password
radio
reset
submit
text

<input> types new in HTML5

color
date
datetime
datetime-local
email
month
number
range
search
tel
time
url
week

<input> attributes in HTML 4

name
disabled*
type
maxlength
readonly
size
value
alt
src
height
width
checked*
~~align~~**

New <input> attributes in HTML5

form
readonly
autocomplete
autofocus
list
pattern
required*
placeholder
multiple
list
min
max
step
formaction
formenctype
formmethod
formtarget
formnovalidate

Other form elements

New Elements

<datalist>
<output>
<meter>
<progress>
<keygen>

Old Elements

<form>
<fieldset>
<legend>
<textarea>
<label>
<select>
<option>
<optgroup>*

Labels

<p> 

<label for="inputID">Label: </label> 

<input id="inputID" name="inputName" type="text" />

</p>

The value of the for attribute should match the value of the input's id attribute

Click on the label to activate the form element:

Radio Button 1
Radio Button 2
Checkbox
Password

Attribute Soup

<label for="name">Name: </label> 
<input id="name" name="inputName" 
  placeholder="placeholder text" 
  pattern="\w{6,9}" 
  required
  autofocus
  type="text"/>

placeholder attribute

<label for="inputID">Label: </label> 
<input id="inputID" name="inputName" 
  placeholder="placeholder text" 
  pattern="\w{6,9}" 
  required
  autofocus
  type="text"/>

degrading the placeholder attribute

Use JS & the placeholder contents for non-supporting browsers

$("input[placeholder]").each(function(){
  if($(this).val()==""){
    $(this).val($(this).attr("placeholder"));
    $(this).focus(function(){
      if($(this).val()==$(this).attr("placeholder")) $(this).val("");
    });
    $(this).blur(function(){
      if($(this).val()==""){
         $(this).val($(this).attr("placeholder"));
      }
     });
  }
});

pattern attribute

<label for="inputID">Label: </label> 
<input id="inputID" name="inputName" 
  placeholder="placeholder text" 
  pattern="\w{6,9}" 
  required
  autofocus
  type="text"/>

6 to 9 characters:

required attribute

<label for="inputID">Label: </label> 
<input id="inputID" name="inputName" 
  placeholder="placeholder text" 
  pattern="\w{6,9}"
  required 
  autofocus
  type="text"/>

6 to 9 characters:

input[required] {border: 1px dashed #f00;}  or 
input:required {border: 1px dashed #f00;}

Targeting in CSS without Touching HTML!

:default
:valid
:invalid
:in-range
:out-of-range
:required
:optional
:read-only
:read-write

input[type=checkbox]
input[required]
input:not([required])

autofocus attribute

<label for="inputID">Label: </label> 
<input id="inputID" name="inputName" 
  placeholder="placeholder text" 
  pattern="\w{6,9}"
  required
  autofocus 
  type="text"/>

Has Focus?

only one element can have the autofocus attribute

$('[autofocus]').first().focus();

type attribute

<label for="inputID">Label: </label> 
<input id="inputID" name="inputName" 
  placeholder="placeholder text" 
  pattern="\w{6,9}"
  required
  autofocus
  type="text" />

Appearance?

HTML 4 values of the type attribute

button does nothing. use button or js
checkbox unchecked not submitted with form
file disabled in iPhone/iOS
hidden
image works like <button>
password use post, not get
radio
reset can lead to bad user experience
submit
text default

13 New input types in HTML5

color
url
tel
email
number
range
search
date
datetime
datetime-local
month
time
week

color

<input  
name="color" 
type="color" />

<input 
id="color" 
name="color" 
type="color"       
placeholder="#FFFFFF" 
pattern="#(?:[0-9A-Fa-f]{6}|[0-9A-Fa-f]{3})"
required />

url

<input  
name="website" 
type="url" />

Opera, Safari & Chrome.

Any prefix (http:// or even g:// accepted)

<input 
id="website" 
name="url" 
type="url"
placeholder="http://www.domain.com" 
pattern="(http|https|ftp)\:\/\/[a-zA-Z0-9\-\.\/]*"/>

url

different dynamic keyboards displayed based on input type.

tel

<input  
name="telephone" 
type="tel" />

Relevant only in mobile. Keyboard changes, but no validation.

<input 
id="phone" 
name="phone" 
type="tel"
placeholder="415-555-1212" 
pattern="\d{3}\-\d{3}\-\d{4}"/>

email

<input  
name="eaddress" 
type="email" />

Keyboard changes & validation!

<input 
id="email" 
name="email" 
type="email"
placeholder="[email protected]" 
multiple />

Email:

supported in Chrome, Opera, Safari, and Firefox 4.
No browsers support 'multiple'.
Only Opera provides validation & errror messaging.

number

<input name="n" type="number"/>

'number' specific attributes:

min
max
step

<input id="nickels" 
type="number"
placeholder="0, 5, 10 …"  
pattern="[0-9]*[05]" 
min="0" 
max="1000" 
step="5" />

Number divisible by 5:

supported in Chrome, Opera, Safari only.
Supporting browsers have enhanced UI
Only Opera provides true validation & errror messaging.
Safari and Chrome associate :valid, but don't validate.

range

<input id="range" name="range" 
type="range" 
placeholder="0 to 10" 
pattern="[0-9]|10" 
min="0" max="10" 
step="1"/>

Current Value:

<input id="range" name="range" 
type="range"  
min="0" max="100" 
step="5"/>

Current Value:

Supported by Opera, Safari & Chrome

search

<input 
id="search" 
name="search" 
type="search" 
placeholder="search terms"/>

UI supported in Safari and Chrome

Warning: if you stylize the input, the 'delete' may not show

date & time

date	2010-11-03
datetime	2010-11-03 19:00
datetime-local	2010-11-03 19:00
month	2010-11
time	19:00
week	2010-W44

Works in Safari, Chrome and really, really well in Opera.

Useful Dates

<input id="DOB" name="DOB" 
 type="date" 
 placeholder="YYYY-MM-DD" 
 pattern="\d{4}\-\d{2}\-\d{2}"
 min="1900-01-01" />

Date of Birth:

Added date functionality

<input  name="time" id="time"
 type="time" 
 min="09:00" 
 max="17:00"
 step="900" 
 placeholder="12:00" 
 required />

Apointment time:

Supported in Chrome, Safari and Opera

HTML5 Form Element Attributes

required
min
max
step
placeholder
pattern
autofocus
autocomplete
form
list

type
readonly
disabled
maxlength
size

list attribute and <datalist>

<label for="url">Web Address: </label>
<input id="url" type="url" name="url1" placeholder="www.domain.com" required  list="datalist1" />

<label for="url2">Web Address2: </label>
<input id="url2" type="url" name="url2" placeholder="www.domain.com" list="datalist1" />
  
<datalist id="datalist1">
  <option value="http://www.standardista.com" />
  <option value="http://www.apress.com" />
  <option value="http://www.evotech.net" />
</datalist>

Web Address:

Web Address2:

<meter>, <progress> & <output>

<meter value="90" min="0" max="100">90%</meter>

Gas tank: 90% full

<progress>loading...</progress>

Please wait: loading...

<progress value="75" max="100">75% complete</progress>

Download is: 75% complete

<output>

All these are currently chrome only