@import "mediawiki.mixins";
@import "mediawiki.ui/variables";
// Checkbox
//
// Styling checkboxes in a way that works cross browser is a tricky problem to solve.
// In MediaWiki UI put a checkbox and label inside a mw-ui-checkbox div.
// This renders in all browsers except IE6-8 which do not support the :checked selector;
// these are kept backwards-compatible using the :not(#noop) selector.
// You should give the checkbox and label matching "id" and "for" attributes, respectively.
//
// Markup:
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// Styleguide 3.
.mw-ui-checkbox {
display: inline-block;
vertical-align: middle;
}
@checkboxSize: 2em;
// We use the not selector to cancel out styling on IE 8 and below
// We also disable this styling on javascript disabled devices. This fixes the issue with
// Opera Mini where checking/unchecking doesn't apply styling but potentially leaves other
// more capable browsers with unstyled checkboxes.
.client-js .mw-ui-checkbox:not(#noop) {
// Position relatively so we can make use of absolute pseudo elements
position: relative;
display: table;
* {
// reset font sizes (see bug 72727)
font: inherit;
vertical-align: middle;
}
input[type="checkbox"] {
// we hide the input element as instead we will style the label that follows
// we use opacity so that VoiceOver software can still identify it
opacity: 0;
// Render "on top of" the label, so that it's still clickable (T98905)
z-index: 1;
position: relative;
// ensure the invisible checkbox takes up the required width
width: @checkboxSize;
height: @checkboxSize;
// This is needed for Firefox mobile (See bug 71750 to workaround default Firefox stylesheet)
max-width: none;
margin: 0;
margin-right: 0.4em;
display: table-cell;
& + label {
display: table-cell;
}
// the pseudo before element of the label after the checkbox now looks like a checkbox
& + label::before {
.transition( 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275) );
content: '';
cursor: pointer;
.box-sizing(border-box);
position: absolute;
left: 0;
border-radius: @borderRadius;
width: @checkboxSize;
height: @checkboxSize;
line-height: @checkboxSize;
background-color: #fff;
border: 1px solid @colorGray7;
// align the checkbox to middle of the text
top: 50%;
margin-top: -1em;
.background-image-svg('images/checked.svg', 'images/checked.png');
.background-size( @checkboxSize - 0.2em, @checkboxSize - 0.2em );
background-repeat: no-repeat;
background-position: center center;
background-origin: border-box;
background-size: 0 0;
}
// when the input is checked, style the label pseudo before element that followed as a checked checkbox
&:checked + label::before {
background-size: 100% 100%;
}
&:active + label::before {
background-color: @colorGray13;
border-color: @colorGray13;
}
&:focus + label::before {
border-width: 2px;
}
&:focus:hover + label::before,
&:hover + label::before {
border-bottom-width: 3px;
}
// disabled checkboxes have a gray background
&:disabled + label::before {
cursor: default;
background-color: @colorGray14;
border-color: @colorGray14;
}
// disabled and checked checkboxes have a white circle
&:disabled:checked + label::before {
.background-image-svg('images/checked_disabled.svg', 'images/checked_disabled.png');
}
}
}