uikit/src/scss/components/form.scss

// Name:            Form
// Description:     Styles for forms
//
// Component:       `uk-form-*`
//                  `uk-input`
//                  `uk-select`
//                  `uk-textarea`
//                  `uk-radio`
//                  `uk-checkbox`
//                  `uk-legend`
//                  `uk-fieldset`
//
// Sub-objects:     `uk-form-custom`
//                  `uk-form-stacked`
//                  `uk-form-horizontal`
//                  `uk-form-label`
//                  `uk-form-controls`
//                  `uk-form-icon`
//                  `uk-form-icon-flip`
//
// Modifiers:       `uk-form-small`
//                  `uk-form-large`
//                  `uk-form-danger`
//                  `uk-form-success`
//                  `uk-form-blank`
//                  `uk-form-width-xsmall`
//                  `uk-form-width-small`
//                  `uk-form-width-medium`
//                  `uk-form-width-large`
//                  `uk-form-controls-text`
//
// ========================================================================


// Variables
// ========================================================================

$form-height:                                    $global-control-height !default;
$form-line-height:                               $form-height !default;
$form-padding-horizontal:                        10px !default;
$form-padding-vertical:                          4px !default;

$form-background:                                $global-muted-background !default;
$form-color:                                     $global-color !default;

$form-focus-background:                          $global-muted-background !default;
$form-focus-color:                               $global-color !default;

$form-disabled-background:                       $global-muted-background !default;
$form-disabled-color:                            $global-muted-color !default;

$form-placeholder-color:                         $global-muted-color !default;

$form-small-height:                              $global-control-small-height !default;
$form-small-padding-horizontal:                  8px !default;
$form-small-line-height:                         $form-small-height !default;
$form-small-font-size:                           $global-small-font-size !default;

$form-large-height:                              $global-control-large-height !default;
$form-large-padding-horizontal:                  12px !default;
$form-large-line-height:                         $form-large-height !default;
$form-large-font-size:                           $global-medium-font-size !default;

$form-danger-color:                              $global-danger-background !default;
$form-success-color:                             $global-success-background !default;

$form-width-xsmall:                              50px !default;
$form-width-small:                               130px !default;
$form-width-medium:                              200px !default;
$form-width-large:                               500px !default;

$form-select-padding-right:                      20px !default;
$form-select-icon-color:                         $global-color !default;
$form-select-option-color:                       #444 !default;
$form-select-disabled-icon-color:                $global-muted-color !default;

$form-datalist-padding-right:                    20px !default;
$form-datalist-icon-color:                       $global-color !default;

$form-radio-size:                                16px !default;
$form-radio-margin-top:                          -4px !default;
$form-radio-background:                          darken($global-muted-background, 5%) !default;

$form-radio-checked-background:                  $global-primary-background !default;
$form-radio-checked-icon-color:                  $global-inverse-color !default;

$form-radio-checked-focus-background:            darken($global-primary-background, 10%) !default;

$form-radio-disabled-background:                 $global-muted-background !default;
$form-radio-disabled-icon-color:                 $global-muted-color !default;

$form-legend-font-size:                          $global-large-font-size !default;
$form-legend-line-height:                        1.4 !default;

$form-stacked-margin-bottom:                     $global-small-margin !default;

$form-horizontal-label-width:                    200px !default;
$form-horizontal-label-margin-top:               7px !default;
$form-horizontal-controls-margin-left:           215px !default;
$form-horizontal-controls-text-padding-top:      7px !default;

$form-icon-width:                                $form-height !default;
$form-icon-color:                                $global-muted-color !default;
$form-icon-hover-color:                          $global-color !default;

$internal-form-select-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2224%22%20height%3D%2216%22%20viewBox%3D%220%200%2024%2016%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Cpolygon%20fill%3D%22#000%22%20points%3D%2212%201%209%206%2015%206%22%20%2F%3E%0A%20%20%20%20%3Cpolygon%20fill%3D%22#000%22%20points%3D%2212%2013%209%208%2015%208%22%20%2F%3E%0A%3C%2Fsvg%3E%0A" !default;
$internal-form-datalist-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2224%22%20height%3D%2216%22%20viewBox%3D%220%200%2024%2016%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Cpolygon%20fill%3D%22#000%22%20points%3D%2212%2012%208%206%2016%206%22%20%2F%3E%0A%3C%2Fsvg%3E%0A" !default;
$internal-form-radio-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2216%22%20height%3D%2216%22%20viewBox%3D%220%200%2016%2016%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Ccircle%20fill%3D%22#000%22%20cx%3D%228%22%20cy%3D%228%22%20r%3D%222%22%20%2F%3E%0A%3C%2Fsvg%3E" !default;
$internal-form-checkbox-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2214%22%20height%3D%2211%22%20viewBox%3D%220%200%2014%2011%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Cpolygon%20fill%3D%22#000%22%20points%3D%2212%201%205%207.5%202%205%201%205.5%205%2010%2013%201.5%22%20%2F%3E%0A%3C%2Fsvg%3E%0A" !default;
$internal-form-checkbox-indeterminate-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2216%22%20height%3D%2216%22%20viewBox%3D%220%200%2016%2016%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Crect%20fill%3D%22#000%22%20x%3D%223%22%20y%3D%228%22%20width%3D%2210%22%20height%3D%221%22%20%2F%3E%0A%3C%2Fsvg%3E" !default;


/* ========================================================================
   Component: Form
 ========================================================================== */

/*
 * 1. Define consistent box sizing.
 *    Default is `content-box` with following exceptions set to `border-box`
 *    `select`, `input[type="checkbox"]` and `input[type="radio"]`
 *    `input[type="search"]` in Chrome, Safari and Opera
 *    `input[type="color"]` in Firefox
 * 2. Address margins set differently in Firefox/IE and Chrome/Safari/Opera.
 * 3. Remove `border-radius` in iOS.
 * 4. Change font properties to `inherit` in all browsers.
 */

.uk-input,
.uk-select,
.uk-textarea,
.uk-radio,
.uk-checkbox {
    /* 1 */
    box-sizing: border-box;
    /* 2 */
    margin: 0;
    /* 3 */
    border-radius: 0;
    /* 4 */
    font: inherit;
}

/*
 * Show the overflow in Edge.
 */

.uk-input { overflow: visible; }

/*
 * Remove the inheritance of text transform in Firefox.
 */

.uk-select { text-transform: none; }

/*
 * 1. Change font properties to `inherit` in all browsers
 * 2. Don't inherit the `font-weight` and use `bold` instead.
 * NOTE: Both declarations don't work in Chrome, Safari and Opera.
 */

.uk-select optgroup {
    /* 1 */
    font: inherit;
    /* 2 */
    font-weight: bold;
}

/*
 * Remove the default vertical scrollbar in IE 10+.
 */

.uk-textarea { overflow: auto; }

/*
 * Remove the inner padding and cancel buttons in Chrome on OS X and Safari on OS X.
 */

.uk-input[type="search"]::-webkit-search-cancel-button,
.uk-input[type="search"]::-webkit-search-decoration { -webkit-appearance: none; }


/*
 * Correct the cursor style of increment and decrement buttons in Chrome.
 */

.uk-input[type="number"]::-webkit-inner-spin-button,
.uk-input[type="number"]::-webkit-outer-spin-button { height: auto; }

/*
 * Removes placeholder transparency in Firefox.
 */

.uk-input::-moz-placeholder,
.uk-textarea::-moz-placeholder { opacity: 1; }

/*
 * Improves consistency of cursor style for clickable elements
 */

.uk-radio:not(:disabled),
.uk-checkbox:not(:disabled) { cursor: pointer; }

/*
 * Define consistent border, margin, and padding.
 */

.uk-fieldset {
    border: none;
    margin: 0;
    padding: 0;
}


/* Input, select and textarea
 * Allowed: `text`, `password`, `datetime`, `datetime-local`, `date`,  `month`,
            `time`, `week`, `number`, `email`, `url`, `search`, `tel`, `color`
 * Disallowed: `range`, `radio`, `checkbox`, `file`, `submit`, `reset` and `image`
 ========================================================================== */

/*
 * Remove default style in iOS.
 */

.uk-input,
.uk-textarea { -webkit-appearance: none; }

/*
 * 1. Prevent content overflow if a fixed width is used
 * 2. Take the full width
 * 3. Reset default
 * 4. Style
 */

.uk-input,
.uk-select,
.uk-textarea {
    /* 1 */
    max-width: 100%;
    /* 2 */
    width: 100%;
    /* 3 */
    border: 0 none;
    /* 4 */
    padding: 0 $form-padding-horizontal;
    background: $form-background;
    color: $form-color;
    @if(mixin-exists(hook-form)) {@include hook-form();}
}

/*
 * Single-line
 * 1. Allow any element to look like an `input` or `select` element
 * 2. Make sure line-height is not larger than height
 *    Also needed to center the text vertically
 */

.uk-input,
.uk-select:not([multiple]):not([size]) {
    height: $form-height;
    vertical-align: middle;
    /* 1 */
    display: inline-block;
    @if(mixin-exists(hook-form-single-line)) {@include hook-form-single-line();}
}

/* 2 */
.uk-input:not(input),
.uk-select:not(select) { line-height: $form-line-height; }

/*
 * Multi-line
 */

.uk-select[multiple],
.uk-select[size],
.uk-textarea {
    padding-top: $form-padding-vertical;
    padding-bottom: $form-padding-vertical;
    vertical-align: top;
    @if(mixin-exists(hook-form-multi-line)) {@include hook-form-multi-line();}
}

/* Focus */
.uk-input:focus,
.uk-select:focus,
.uk-textarea:focus {
    outline: none;
    background-color: $form-focus-background;
    color: $form-focus-color;
    @if(mixin-exists(hook-form-focus)) {@include hook-form-focus();}
}

/* Disabled */
.uk-input:disabled,
.uk-select:disabled,
.uk-textarea:disabled {
    background-color: $form-disabled-background;
    color: $form-disabled-color;
    @if(mixin-exists(hook-form-disabled)) {@include hook-form-disabled();}
}

/*
 * Placeholder
 */

.uk-input::-ms-input-placeholder { color: $form-placeholder-color !important; }
.uk-input::placeholder { color: $form-placeholder-color; }

.uk-textarea::-ms-input-placeholder { color: $form-placeholder-color !important; }
.uk-textarea::placeholder { color: $form-placeholder-color; }


/* Style modifier (`uk-input`, `uk-select` and `uk-textarea`)
 ========================================================================== */

/*
 * Small
 */

.uk-form-small { font-size: $form-small-font-size; }

.uk-form-small:not(textarea):not([multiple]):not([size]) {
    height: $form-small-height;
    padding-left: $form-small-padding-horizontal;
    padding-right: $form-small-padding-horizontal;
}

.uk-form-small:not(select):not(input):not(textarea) { line-height: $form-small-line-height; }

/*
 * Large
 */

.uk-form-large { font-size: $form-large-font-size; }

.uk-form-large:not(textarea):not([multiple]):not([size]) {
    height: $form-large-height;
    padding-left: $form-large-padding-horizontal;
    padding-right: $form-large-padding-horizontal;
}

.uk-form-large:not(select):not(input):not(textarea) { line-height: $form-large-line-height; }


/* Style modifier (`uk-input`, `uk-select` and `uk-textarea`)
 ========================================================================== */

/*
 * Error
 */

.uk-form-danger,
.uk-form-danger:focus {
    color: $form-danger-color;
    @if(mixin-exists(hook-form-danger)) {@include hook-form-danger();}
}

/*
 * Success
 */

.uk-form-success,
.uk-form-success:focus  {
    color: $form-success-color;
    @if(mixin-exists(hook-form-success)) {@include hook-form-success();}
}

/*
 * Blank
 */

.uk-form-blank {
    background: none;
    @if(mixin-exists(hook-form-blank)) {@include hook-form-blank();}
}

.uk-form-blank:focus {
    @if(mixin-exists(hook-form-blank-focus)) {@include hook-form-blank-focus();}
}


/* Width modifiers (`uk-input`, `uk-select` and `uk-textarea`)
 ========================================================================== */

/*
 * Fixed widths
 * Different widths for mini sized `input` and `select` elements
 */

input.uk-form-width-xsmall { width: $form-width-xsmall; }

select.uk-form-width-xsmall { width: ($form-width-xsmall + 25px); }

.uk-form-width-small { width: $form-width-small; }

.uk-form-width-medium { width: $form-width-medium; }

.uk-form-width-large { width: $form-width-large; }


/* Select
 ========================================================================== */

/*
 * 1. Remove default style. Also works in Firefox
 * 2. Style
 * 3. Remove default style in IE 10/11
 * 4. Set `color` for options in the select dropdown, because the inherited `color` might be too light.
 */

.uk-select:not([multiple]):not([size]) {
    /* 1 */
    -webkit-appearance: none;
    -moz-appearance: none;
    /* 2 */
    padding-right: $form-select-padding-right;
    @include svg-fill($internal-form-select-image, "#000", $form-select-icon-color);
    background-repeat: no-repeat;
    background-position: 100% 50%;
}

/* 3 */
.uk-select:not([multiple]):not([size])::-ms-expand { display: none; }

/* 4 */
.uk-select:not([multiple]):not([size]) option { color: $form-select-option-color; }

/*
 * Disabled
 */

.uk-select:not([multiple]):not([size]):disabled { @include svg-fill($internal-form-select-image, "#000", $form-select-disabled-icon-color); }


/* Datalist
 ========================================================================== */

/*
 * 1. Remove default style in Chrome
 */

 .uk-input[list] {
    padding-right: $form-datalist-padding-right;
    background-repeat: no-repeat;
    background-position: 100% 50%;
}

.uk-input[list]:hover,
.uk-input[list]:focus { @include svg-fill($internal-form-datalist-image, "#000", $form-datalist-icon-color); }

/* 1 */
.uk-input[list]::-webkit-calendar-picker-indicator { display: none; }


/* Radio and checkbox
 * Note: Does not work in IE11
 ========================================================================== */

/*
 * 1. Style
 * 2. Make box more robust so it clips the child element
 * 3. Vertical alignment
 * 4. Remove default style
 * 5. Fix black background on iOS
 * 6. Center icons
 */

.uk-radio,
.uk-checkbox {
    /* 1 */
    display: inline-block;
    height: $form-radio-size;
    width: $form-radio-size;
    /* 2 */
    overflow: hidden;
    /* 3 */
    margin-top: $form-radio-margin-top;
    vertical-align: middle;
    /* 4 */
    -webkit-appearance: none;
    -moz-appearance: none;
    /* 5 */
    background-color: $form-radio-background;
    /* 6 */
    background-repeat: no-repeat;
    background-position: 50% 50%;
    @if(mixin-exists(hook-form-radio)) {@include hook-form-radio();}
}

.uk-radio { border-radius: 50%; }

/* Focus */
.uk-radio:focus,
.uk-checkbox:focus {
    outline: none;
    @if(mixin-exists(hook-form-radio-focus)) {@include hook-form-radio-focus();}
}

/*
 * Checked
 */

.uk-radio:checked,
.uk-checkbox:checked,
.uk-checkbox:indeterminate {
    background-color: $form-radio-checked-background;
    @if(mixin-exists(hook-form-radio-checked)) {@include hook-form-radio-checked();}
}

/* Focus */
.uk-radio:checked:focus,
.uk-checkbox:checked:focus,
.uk-checkbox:indeterminate:focus {
    background-color: $form-radio-checked-focus-background;
    @if(mixin-exists(hook-form-radio-checked-focus)) {@include hook-form-radio-checked-focus();}
}

/*
 * Icons
 */

.uk-radio:checked { @include svg-fill($internal-form-radio-image, "#000", $form-radio-checked-icon-color); }
.uk-checkbox:checked { @include svg-fill($internal-form-checkbox-image, "#000", $form-radio-checked-icon-color); }
.uk-checkbox:indeterminate { @include svg-fill($internal-form-checkbox-indeterminate-image, "#000", $form-radio-checked-icon-color); }

/*
 * Disabled
 */

.uk-radio:disabled,
.uk-checkbox:disabled {
    background-color: $form-radio-disabled-background;
    @if(mixin-exists(hook-form-radio-disabled)) {@include hook-form-radio-disabled();}
}

.uk-radio:disabled:checked { @include svg-fill($internal-form-radio-image, "#000", $form-radio-disabled-icon-color); }
.uk-checkbox:disabled:checked { @include svg-fill($internal-form-checkbox-image, "#000", $form-radio-disabled-icon-color); }
.uk-checkbox:disabled:indeterminate { @include svg-fill($internal-form-checkbox-indeterminate-image, "#000", $form-radio-disabled-icon-color); }


/* Legend
 ========================================================================== */

/*
 * Legend
 * 1. Behave like block element
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 3. Remove padding so people aren't caught out if they zero out fieldsets.
 * 4. Style
 */

.uk-legend {
    /* 1 */
    width: 100%;
    /* 2 */
    color: inherit;
    /* 3 */
    padding: 0;
    /* 4 */
    font-size: $form-legend-font-size;
    line-height: $form-legend-line-height;
    @if(mixin-exists(hook-form-legend)) {@include hook-form-legend();}
}


/* Custom controls
 ========================================================================== */

/*
 * 1. Container fits its content
 * 2. Create position context
 * 3. Prevent content overflow
 * 4. Behave like most inline-block elements
 */

.uk-form-custom {
    /* 1 */
    display: inline-block;
    /* 2 */
    position: relative;
    /* 3 */
    max-width: 100%;
    /* 4 */
    vertical-align: middle;
}

/*
 * 1. Position and resize the form control to always cover its container
 * 2. Required for Firefox for positioning to the left
 * 3. Required for Webkit to make `height` work
 * 4. Hide controle and show cursor
 * 5. Needed for the cursor
 * 6. Clip height caused by 5. Needed for Webkit only
 */

.uk-form-custom select,
.uk-form-custom input[type="file"] {
    /* 1 */
    position: absolute;
    top: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    /* 2 */
    left: 0;
    /* 3 */
    -webkit-appearance: none;
    /* 4 */
    opacity: 0;
    cursor: pointer;
}

.uk-form-custom input[type="file"] {
    /* 5 */
    font-size: 500px;
    /* 6 */
    overflow: hidden;
}


/* Label
 ========================================================================== */

.uk-form-label {
    @if(mixin-exists(hook-form-label)) {@include hook-form-label();}
}


/* Layout
 ========================================================================== */

/*
 * Stacked
 */

.uk-form-stacked .uk-form-label {
    display: block;
    margin-bottom: $form-stacked-margin-bottom;
    @if(mixin-exists(hook-form-stacked-label)) {@include hook-form-stacked-label();}
}

/*
 * Horizontal
 */

/* Tablet portrait and smaller */
@media (max-width: $breakpoint-small-max) {

    /* Behave like `uk-form-stacked` */
    .uk-form-horizontal .uk-form-label {
        display: block;
        margin-bottom: $form-stacked-margin-bottom;
        @if(mixin-exists(hook-form-stacked-label)) {@include hook-form-stacked-label();}
    }

}

/* Tablet landscape and bigger */
@media (min-width: $breakpoint-medium) {

    .uk-form-horizontal .uk-form-label {
        width: $form-horizontal-label-width;
        margin-top: $form-horizontal-label-margin-top;
        float: left;
        @if(mixin-exists(hook-form-horizontal-label)) {@include hook-form-horizontal-label();}
    }

    .uk-form-horizontal .uk-form-controls { margin-left: $form-horizontal-controls-margin-left; }

    /* Better vertical alignment if controls are checkboxes and radio buttons with text */
    .uk-form-horizontal .uk-form-controls-text { padding-top: $form-horizontal-controls-text-padding-top; }

}


/* Icons
 ========================================================================== */

/*
 * 1. Set position
 * 2. Set width
 * 3. Center icon vertically and horizontally
 * 4. Style
 */

.uk-form-icon {
    /* 1 */
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    /* 2 */
    width: $form-icon-width;
    /* 3 */
    display: inline-flex;
    justify-content: center;
    align-items: center;
    /* 4 */
    color: $form-icon-color;
}

/*
 * Required for `a`.
 */

.uk-form-icon:hover { color: $form-icon-hover-color; }

/*
 * Make `input` element clickable through icon, e.g. if it's a `span`
 */

.uk-form-icon:not(a):not(button):not(input) { pointer-events: none; }

/*
 * Input padding
 */

.uk-form-icon:not(.uk-form-icon-flip) ~ .uk-input { padding-left: $form-icon-width !important; }

/*
 * Position modifier
 */

.uk-form-icon-flip {
    right: 0;
    left: auto;
}

.uk-form-icon-flip ~ .uk-input { padding-right: $form-icon-width !important; }


// Hooks
// ========================================================================

@if(mixin-exists(hook-form-misc)) {@include hook-form-misc();}

// @mixin hook-form(){}
// @mixin hook-form-single-line(){}
// @mixin hook-form-multi-line(){}
// @mixin hook-form-focus(){}
// @mixin hook-form-disabled(){}
// @mixin hook-form-danger(){}
// @mixin hook-form-success(){}
// @mixin hook-form-blank(){}
// @mixin hook-form-blank-focus(){}
// @mixin hook-form-radio(){}
// @mixin hook-form-radio-focus(){}
// @mixin hook-form-radio-checked(){}
// @mixin hook-form-radio-checked-focus(){}
// @mixin hook-form-radio-disabled(){}
// @mixin hook-form-legend(){}
// @mixin hook-form-label(){}
// @mixin hook-form-stacked-label(){}
// @mixin hook-form-horizontal-label(){}
// @mixin hook-form-misc(){}


// Inverse
// ========================================================================

$inverse-form-background:                       $inverse-global-muted-background !default;
$inverse-form-color:                            $inverse-global-color !default;
$inverse-form-focus-background:                 $inverse-global-muted-background !default;
$inverse-form-focus-color:                      $inverse-global-color !default;
$inverse-form-placeholder-color:                $inverse-global-muted-color !default;

$inverse-form-select-icon-color:                $inverse-global-color !default;

$inverse-form-datalist-icon-color:              $inverse-global-color !default;

$inverse-form-radio-background:                 darken($inverse-global-muted-background, 5%) !default;

$inverse-form-radio-checked-background:         $inverse-global-primary-background !default;
$inverse-form-radio-checked-icon-color:         $inverse-global-inverse-color !default;

$inverse-form-radio-checked-focus-background:   darken($inverse-global-primary-background, 10%) !default;

$inverse-form-icon-color:                       $inverse-global-muted-color !default;
$inverse-form-icon-hover-color:                 $inverse-global-color !default;



// @mixin hook-inverse-form(){}
// @mixin hook-inverse-form-focus(){}
// @mixin hook-inverse-form-radio(){}
// @mixin hook-inverse-form-radio-focus(){}
// @mixin hook-inverse-form-radio-checked(){}
// @mixin hook-inverse-form-radio-checked-focus(){}
// @mixin hook-inverse-form-label(){}