// Form validation states

//

// Used in forms.less to generate the form validation CSS for warnings, errors,

// and successes.

.form-control-validation(@text-color: #555; @border-color: #ccc; @background-color: #f5f5f5) {

  // Color the label and help text

  .help-block,

  .control-label,

  .radio,

  .checkbox,

  .radio-inline,

  .checkbox-inline,

  &.radio label,

  &.checkbox label,

  &.radio-inline label,

  &.checkbox-inline label  {

    color: @text-color;

  }

  // Set the border and box shadow on specific inputs to match

  .form-control {

    border-color: @border-color;

    .box-shadow(inset 0 1px 1px rgba(0,0,0,.075)); // Redeclare so transitions work

    &:focus {

      border-color: darken(@border-color, 10%);

      @shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 6px lighten(@border-color, 20%);

      .box-shadow(@shadow);

    }

  }

  // Set validation states also for addons

  .input-group-addon {

    color: @text-color;

    border-color: @border-color;

    background-color: @background-color;

  }

  // Optional feedback icon

  .form-control-feedback {

    color: @text-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.

.form-control-focus(@color: @input-border-focus) {

  @color-rgba: rgba(red(@color), green(@color), blue(@color), .6);

  &:focus {

    border-color: @color;

    outline: 0;

    .box-shadow(~"inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px @{color-rgba}");

  }

}

// 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!

.input-size(@input-height; @padding-vertical; @padding-horizontal; @font-size; @line-height; @border-radius) {

  height: @input-height;

  padding: @padding-vertical @padding-horizontal;

  font-size: @font-size;

  line-height: @line-height;

  border-radius: @border-radius;

  select& {

    height: @input-height;

    line-height: @input-height;

  }

  textarea&,

  select[multiple]& {

    height: auto;

  }

}