/**
 * Creates a visual theme for an Ext.ProgressBar
 *
 * @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-border-color=$progress-border-color]
 * The border-color of the ProgressBar
 *
 * @param {color} [$ui-background-color=$progress-background-color]
 * The background-color of the ProgressBar
 *
 * @param {color} [$ui-bar-background-color=$progress-bar-background-color]
 * The background-color of the ProgressBar's moving element
 *
 * @param {string/list} [$ui-bar-background-gradient=$progress-bar-background-gradient]
 * The background-gradient of the ProgressBar's moving element. Can be either the name of
 * a predefined gradient or a list of color stops. Used as the `$type` parameter for
 * {@link Global_CSS#background-gradient}.
 *
 * @param {color} [$ui-color-front=$progress-text-color-front]
 * The color of the ProgressBar's text when in front of the ProgressBar's moving element
 *
 * @param {color} [$ui-color-back=$progress-text-color-back]
 * The color of the ProgressBar's text when the ProgressBar's 'moving element is not under it
 *
 * @param {number} [$ui-height=$progress-height]
 * The height of the ProgressBar
 *
 * @param {number} [$ui-border-width=$progress-border-width]
 * The border-width of the ProgressBar
 *
 * @param {number} [$ui-border-radius=$progress-border-radius]
 * The border-radius of the ProgressBar
 *
 * @param {string} [$ui-text-text-align=$progress-text-text-align]
 * The text-align of the ProgressBar's text
 *
 * @param {number} [$ui-text-font-size=$progress-text-font-size]
 * The font-size of the ProgressBar's text
 *
 * @param {string} [$ui-text-font-weight=$progress-text-font-weight]
 * The font-weight of the ProgressBar's text
 *
 * @member Ext.ProgressBar
 */
@mixin extjs-progress-ui(
    $ui: null,

    $ui-border-color: $progress-border-color,
    $ui-background-color: $progress-background-color,

    $ui-bar-background-color: $progress-bar-background-color,
    $ui-bar-background-gradient: $progress-bar-background-gradient,

    $ui-color-front: $progress-text-color-front,
    $ui-color-back: $progress-text-color-back,
    $ui-height: $progress-height,
    $ui-border-width: $progress-border-width,
    $ui-border-radius: $progress-border-radius,
    $ui-text-text-align: $progress-text-text-align,
    $ui-text-font-size: $progress-text-font-size,
    $ui-text-font-weight: $progress-text-font-weight,
    $ui-text-font-family: $progress-text-font-family,

    // deprecated - use $ui instead
    $ui-label: null
){
    @if $ui == null {
        @if $ui-label != null {
            @warn '$ui-label is deprecated.  Use $ui instead';
            $ui: $ui-label;
        } @else {
            @warn "#{error('$ui is required')}";
        }
    }

    $progress-content-height: $ui-height - vertical($ui-border-width);
    .#{$prefix}progress-#{$ui} {
        background-color: $ui-background-color;
        border-width: $ui-border-width;
        height: $ui-height;
        @if $include-content-box {
            .#{$prefix}content-box & {
                height: $progress-content-height;
            }
        }

        @if $ui-border-radius != 0 {
            @include border-radius($ui-border-radius);
        }
        @if not is-null($ui-border-color) {
            border-color: $ui-border-color;
        }

        .#{$prefix}progress-bar-#{$ui} {
            @if $ui-border-radius != 0 {
                @include border-radius($ui-border-radius);
            }
            @if not is-null($ui-bar-background-color) {
                @include background-gradient($ui-bar-background-color, $ui-bar-background-gradient);
            }
            @if $include-slicer-gradient and not is-null($ui-bar-background-gradient) {
                .#{$prefix}nlg & {
                    background: repeat-x;
                    background-image: slicer-background-image(progress-bar-#{$ui}, 'progress/progress-#{$ui}-bg');
                }
            }
        }

        .#{$prefix}progress-text {
            color: $ui-color-front;
            font-weight: $ui-text-font-weight;
            font-size: $ui-text-font-size;
            font-family: $ui-text-font-family;
            text-align: $ui-text-text-align;
            line-height: $progress-content-height;
        }

        .#{$prefix}progress-text-back {
            color: $ui-color-back;
            line-height: $progress-content-height;
        }
    }

    $stretch: slicer-background-stretch(progress-bar-#{$ui}, bottom);
    @include x-slicer(progress-bar-#{$ui});
}


@if $include-progress-default-ui {
    @include extjs-progress-ui(
        $ui: 'default'
    );
}
