mediawiki-extensions-InputBox/resources/ext.inputBox.styles.less
Timo Tijhof 93351fb7d9 Use native <input required> instead of JS-based disabled toggling
Remove the JavaScript module and its logic to toggle the disabled
state on the submit button. Instead, let the browser handle this
natively by setting the `required` attribute, which naturally prevents
early submissions.

Retain the current styling for 99% of cases by using the
:required:invalid selector to target the submit button to make it
appear disabled. This slight duplication of styles is needed because,
despite the form effectively being disabled natively, the core
mediawiki-ui styles only account for :disabled on the button directly
and not e.g. inherited via form:invalid. It is also unclear whether
we would want that, since there is some value to be had from having
the form give a consistent look with a progressive button that can
be submitted even at the wrong time to yield an assistive message to
the required field, so hence handling this locally for now instead of
with a generalised approach.

In order to use the required true/false idiom, I have switched the
generating of the HTML string from the old Xml::element method
to Html::element. This means there is no need to store it in an array
first and conditionally set it since true/false will result in absence
or required="" as needed.

As side-effect from this, redundant attributes like value="" and
type="text" are ommitted from the output, just as MediaWiki core does
more generally.

Bug: T283303
Change-Id: I2c75e09dd3f89fa11fca311b4e1f8133946b01b1
2021-05-21 21:04:02 +01:00

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@import 'mediawiki.ui/variables.less';
.mw-inputbox-centered {
margin-left: auto;
margin-right: auto;
text-align: center;
}
.mw-inputbox-inline {
display: inline;
}
.mw-inputbox-element {
/* important is needed to overwrite display:table from mw-ui checkbox */
display: inline-table !important;
white-space: nowrap;
}
.mw-inputbox-input {
margin-bottom: 0.5em;
}
/* TODO: Remove first selector 30 days after May 2021 parsercache expires */
.createboxInput[type="text"]:placeholder-shown ~ .createboxButton,
.mw-inputbox-createbox:required:invalid ~ .mw-ui-button {
/* appear like .mw-ui-input:disabled */
background-color: @colorGray12;
color: @color-base--inverted;
border-color: @colorGray12;
cursor: default;
}