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// Form control focus state

//

// Generate a customized focus state and for any input with the specified color,

// which defaults to the `$input-focus-border-color` 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($ignore-warning: false) {

  &:focus {

    color: $input-focus-color;

    background-color: $input-focus-bg;

    border-color: $input-focus-border-color;

    outline: 0;

    @if $enable-shadows {

      @include box-shadow($input-box-shadow, $input-focus-box-shadow);

    } @else {

      // Avoid using mixin so we can pass custom focus shadow properly

      box-shadow: $input-focus-box-shadow;

    }

  }

  @include deprecate("The `form-control-focus()` mixin", "v4.4.0", "v5", $ignore-warning);

}

// This mixin uses an `if()` technique to be compatible with Dart Sass

// See https://github.com/sass/sass/issues/1873#issuecomment-152293725 for more details

@mixin form-validation-state-selector($state) {

  @if ($state == "valid" or $state == "invalid") {

    .was-validated #{if(&, "&", "")}:#{$state},

    #{if(&, "&", "")}.is-#{$state} {

      @content;

    }

  } @else {

    #{if(&, "&", "")}.is-#{$state} {

      @content;

    }

  }

}

@mixin form-validation-state($state, $color, $icon) {

  .#{$state}-feedback {

    display: none;

    width: 100%;

    margin-top: $form-feedback-margin-top;

    @include font-size($form-feedback-font-size);

    color: $color;

  }

  .#{$state}-tooltip {

    position: absolute;

    top: 100%;

    left: 0;

    z-index: 5;

    display: none;

    max-width: 100%; // Contain to parent when possible

    padding: $form-feedback-tooltip-padding-y $form-feedback-tooltip-padding-x;

    margin-top: .1rem;

    @include font-size($form-feedback-tooltip-font-size);

    line-height: $form-feedback-tooltip-line-height;

    color: color-yiq($color);

    background-color: rgba($color, $form-feedback-tooltip-opacity);

    @include border-radius($form-feedback-tooltip-border-radius);

    // See https://github.com/twbs/bootstrap/pull/31557

    // Align tooltip to form elements

    .form-row > .col > &,

    .form-row > [class*="col-"] > & {

      left: $form-grid-gutter-width * .5;

    }

  }

  @include form-validation-state-selector($state) {

    ~ .#{$state}-feedback,

    ~ .#{$state}-tooltip {

      display: block;

    }

  }

  .form-control {

    @include form-validation-state-selector($state) {

      border-color: $color;

      @if $enable-validation-icons {

        padding-right: $input-height-inner !important; // stylelint-disable-line declaration-no-important

        background-image: escape-svg($icon);

        background-repeat: no-repeat;

        background-position: right $input-height-inner-quarter center;

        background-size: $input-height-inner-half $input-height-inner-half;

      }

      &:focus {

        border-color: $color;

        box-shadow: 0 0 0 $input-focus-width rgba($color, .25);

      }

    }

  }

  // stylelint-disable-next-line selector-no-qualifying-type

  select.form-control {

    @include form-validation-state-selector($state) {

      @if $enable-validation-icons {

        padding-right: $input-padding-x * 4 !important; // stylelint-disable-line declaration-no-important

        background-position: right $input-padding-x * 2 center;

      }

    }

  }

  // stylelint-disable-next-line selector-no-qualifying-type

  textarea.form-control {

    @include form-validation-state-selector($state) {

      @if $enable-validation-icons {

        padding-right: $input-height-inner;

        background-position: top $input-height-inner-quarter right $input-height-inner-quarter;

      }

    }

  }

  .custom-select {

    @include form-validation-state-selector($state) {

      border-color: $color;

      @if $enable-validation-icons {

        padding-right: $custom-select-feedback-icon-padding-right !important; // stylelint-disable-line declaration-no-important

        background: $custom-select-background, $custom-select-bg escape-svg($icon) $custom-select-feedback-icon-position / $custom-select-feedback-icon-size no-repeat;

      }

      &:focus {

        border-color: $color;

        box-shadow: 0 0 0 $input-focus-width rgba($color, .25);

      }

    }

  }

  .form-check-input {

    @include form-validation-state-selector($state) {

      ~ .form-check-label {

        color: $color;

      }

      ~ .#{$state}-feedback,

      ~ .#{$state}-tooltip {

        display: block;

      }

    }

  }

  .custom-control-input {

    @include form-validation-state-selector($state) {

      ~ .custom-control-label {

        color: $color;

        &::before {

          border-color: $color;

        }

      }

      &:checked {

        ~ .custom-control-label::before {

          border-color: lighten($color, 10%);

          @include gradient-bg(lighten($color, 10%));

        }

      }

      &:focus {

        ~ .custom-control-label::before {

          box-shadow: 0 0 0 $input-focus-width rgba($color, .25);

        }

        &:not(:checked) ~ .custom-control-label::before {

          border-color: $color;

        }

      }

    }

  }

  // custom file

  .custom-file-input {

    @include form-validation-state-selector($state) {

      ~ .custom-file-label {

        border-color: $color;

      }

      &:focus {

        ~ .custom-file-label {

          border-color: $color;

          box-shadow: 0 0 0 $input-focus-width rgba($color, .25);

        }

      }

    }

  }

}