// Form validation states
//
// Used in _forms.scss to generate the form validation CSS for warnings, errors,
// and successes.

@mixin form-control-validation($color) {
  .text-help,
  .form-control-label,
  .radio,
  .checkbox,
  .radio-inline,
  .checkbox-inline,
  &.radio label,
  &.checkbox label,
  &.radio-inline label,
  &.checkbox-inline label,
  .custom-control {
    color: $color;
  }

  // Set the border and box shadow on specific inputs to match
  .form-control {
    border-color: $color;
  }

  // Set validation states also for addons
  .input-group-addon {
    color: $color;
    border-color: $color;
    background-color: lighten($color, 40%);
  }

  // Optional feedback icon
  .form-control-feedback {
    color: $color;
  }
}

// Form control focus state
//
// Generate a customized focus state and for any input with the specified color,
// which defaults to the `@input-border-focus` variable.
//
// We highly encourage you to not customize the default value, but instead use
// this to tweak colors on an as-needed basis. This aesthetic change is based on
// WebKit's default styles, but applicable to a wider range of browsers. Its
// usability and accessibility should be taken into account with any change.
//
// Example usage: change the default blue border and shadow to white for better
// contrast against a dark gray background.
@mixin form-control-focus() {
  &:focus {
    border-color: $input-border-focus;
    outline: none;

    &::placeholder {
      opacity: 0;
    }
  }
}

// Form control sizing
//
// Relative text size, padding, and border-radii changes for form controls. For
// horizontal sizing, wrap controls in the predefined grid classes. `<select>`
// element gets special love because it's special, and that's a fact!

@mixin input-size(
  $parent,
  $input-height,
  $padding-y,
  $padding-x,
  $font-size,
  $line-height,
  $border-radius
) {
  #{$parent} {
    height: $input-height;
    padding: $padding-y $padding-x;
    font-size: $font-size;
    line-height: $line-height;
    @include border-radius($border-radius);
  }

  select#{$parent} {
    height: $input-height;
    line-height: $input-height;
  }

  textarea#{$parent},
  select[multiple]#{$parent} {
    height: auto;
  }
}