/**
 * Creates a visual theme for "labelable" form items.  Provides visual styling for the
 * Label and error message that can be shared between many types of form fields.
 *
 * @param {string} $ui
 * The name of the UI being created. Can not included spaces or special punctuation
 * (used in CSS class names).
 *
 * @param {color} [$ui-font-color=$form-label-font-color]
 * The text color the label
 *
 * @param {string} [$ui-font-weight=$form-label-font-weight]
 * The font-weight of the label
 *
 * @param {number} [$ui-font-size=$form-label-font-size]
 * The font-size of the label
 *
 * @param {string} [$ui-font-family=$form-label-font-family]
 * The font-family the label
 *
 * @param {number} [$ui-height=$form-field-height]
 * The height of the label.  This should be the same height as the height of fields that
 * this label ui will be used with.  This does not actually set the height of the label
 * but is used to ensure that the label is centered within the given height.
 *
 * @param {number} [$ui-line-height=$form-label-line-height]
 * The line-height of the label
 *
 * @param {number} [$ui-horizontal-spacing=$form-label-horizontal-spacing]
 * Horizontal space between the label and the field body when the label is left-aligned.
 *
 * @param {number} [$ui-vertical-spacing=$form-label-vertical-spacing]
 * Vertical space between the label and the field body when the label is top-aligned.
 *
 * @param {number} [$ui-error-icon-background-image=$form-error-icon-background-image]
 * The background-image of the error icon
 *
 * @param {number} [$ui-error-icon-width=$form-error-icon-width]
 * The width of the error icon
 *
 * @param {number} [$ui-error-icon-height=$form-error-icon-height]
 * The height of the error icon
 *
 * @param {number/list} [$ui-error-icon-side-margin=$form-error-icon-side-margin]
 * Margin for error icons when aligned to the side of the field
 *
 * @param {number} [$ui-error-under-icon-spacing=$form-error-under-icon-spacing]
 * The space between the icon and the message for errors that display under the field
 *
 * @param {number/list} [$ui-error-under-padding=$form-error-under-padding]
 * The padding on errors that display under the form field
 *
 * @param {color} [$ui-error-msg-color=$form-error-msg-color]
 * The text color of form error messages
 *
 * @param {string} [$ui-error-msg-font-weight=$form-error-msg-font-weight]
 * The font-weight of form error messages
 *
 * @param {number} [$ui-error-msg-font-size=$form-error-msg-font-size]
 * The font-size of form error messages
 *
 * @param {string} [$ui-error-msg-font-family=$form-error-msg-font-family]
 * The font-family of form error messages
 *
 * @param {number} [$ui-error-msg-line-height=$form-error-msg-line-height]
 * The line-height of form error messages
 *
 * @param {number} [$ui-disabled-opacity=$form-field-disabled-opacity]
 * Opacity of disabled form fields
 *
 * @member Ext.form.Labelable
 */
@mixin extjs-label-ui(
    $ui: null,
    $ui-font-color: $form-label-font-color,
    $ui-font-weight: $form-label-font-weight,
    $ui-font-size: $form-label-font-size,
    $ui-font-family: $form-label-font-family,
    $ui-height: $form-field-height,
    $ui-line-height: $form-label-line-height,
    $ui-horizontal-spacing: $form-label-horizontal-spacing,
    $ui-vertical-spacing: $form-label-vertical-spacing,
    $ui-error-icon-background-image: $form-error-icon-background-image,
    $ui-error-icon-width: $form-error-icon-width,
    $ui-error-icon-height: $form-error-icon-height,
    $ui-error-icon-side-margin: $form-error-icon-side-margin,
    $ui-error-under-icon-spacing: $form-error-under-icon-spacing,
    $ui-error-under-padding: $form-error-under-padding,
    $ui-error-msg-color: $form-error-msg-color,
    $ui-error-msg-font-weight: $form-error-msg-font-weight,
    $ui-error-msg-font-size: $form-error-msg-font-size,
    $ui-error-msg-font-family: $form-error-msg-font-family,
    $ui-error-msg-line-height: $form-error-msg-line-height,
    $ui-disabled-opacity: $form-field-disabled-opacity
) {
    $ui-error-wrap-width: $ui-error-icon-width + horizontal($ui-error-icon-side-margin);
    .#{$prefix}form-item-label-#{$ui} {
        $padding-top: round(($ui-height - $ui-line-height) / 2);

        color: $ui-font-color;
        font: $ui-font-weight #{$ui-font-size}/#{$ui-line-height} $ui-font-family;
        min-height: $ui-height;
        padding-top: $padding-top;
        padding-right: $ui-horizontal-spacing;
        @if $include-rtl {
            &.#{$prefix}rtl {
                padding-left: $ui-horizontal-spacing;
                padding-right: 0;
            }
        }

        @if $include-ie {
            .#{$prefix}ie8 & {
                // min-height triggers content-box sizing on IE8, so subtract padding
                min-height: $ui-height - $padding-top;
            }
        }

        &.#{$prefix}form-item-label-top {
            height: 1px;
            > .#{$prefix}form-item-label-inner {
                padding-top: round(($ui-height - $ui-line-height) / 2);
                padding-bottom: $ui-vertical-spacing;
            }
        }

        &.#{$prefix}form-item-label-top-side-error:after {
            width: $ui-error-wrap-width;
        }
    }

    .#{$prefix}form-item-body-#{$ui} {
        min-height: $ui-height;
    }

    .#{$prefix}form-invalid-icon-#{$ui} {
        width: $ui-error-icon-width;
        height: $ui-error-icon-height;
        margin: $ui-error-icon-side-margin;
        background: theme-background-image($ui-error-icon-background-image) no-repeat;
    }

    .#{$prefix}form-invalid-under-#{$ui} {
        padding: top($ui-error-under-padding) right($ui-error-under-padding) bottom($ui-error-under-padding) (left($ui-error-under-padding) + $ui-error-icon-width + $ui-error-under-icon-spacing);
        color: $ui-error-msg-color;
        font: $ui-error-msg-font-weight #{$ui-error-msg-font-size}/#{$ui-error-msg-line-height} $ui-error-msg-font-family;
        background: no-repeat left($ui-error-under-padding) top($ui-error-under-padding);
        background-image: theme-background-image($ui-error-icon-background-image);
    }

    .#{$prefix}form-error-wrap-#{$ui}.#{$prefix}form-error-wrap-side {
        width: $ui-error-wrap-width;
    }

    @if $ui-disabled-opacity != 1 {
        .#{$prefix}form-item-#{$ui}.#{$prefix}item-disabled {
            @include opacity($ui-disabled-opacity);
        }
    }
}