// 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 {
        color: @text-color;
    }
    // Set the border and box shadow on specific inputs to match
    .form-control {
        border-color: @border-color;
        &:focus {
            border-color: darken(@border-color, 10%);
        }
    }
    // 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-focus-border` 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;
    }
}

// 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;
    }
}