_office.theme.typography.scss

@mixin uiUseRem($rem) {
    $useRem: $rem !global;
}

@function pxToEm($size) {
    @return ($size / $fontSizeCore) * 1em;
}

@function pxToRem($size) {
    @return ($size / $fontSizeRoot) * 1rem;
}

// Get font size and according font weight
@mixin uiFont($fabric-font) {

    @each $fontDef in $fontSizes {

        // check Office UI Frabric name
        $fdTitle: nth($fontDef, 1); // base office ui fabric in PX value
        $fdSizePx: nth($fontDef, 2); // base office ui fabric in EM value
        $fdSizeEm: if($useRem, pxToRem($fdSizePx), pxToEm($fdSizePx)); // get font weight
        $fdWeight: nth($fontDef, 3);

        @if $fdTitle==$fabric-font {
            font-size: $fdSizeEm;
            font-weight: call($fdWeight);
        }
    }
}

// Get font weight
@mixin uiFontWeight($fabric-font) {

    @each $fontDef in $fontWeights {

        $fdTitle: nth($fontDef, 1); // get font weight
        $fdWeight: nth($fontDef, 2); // 
        $fdValue: $fdWeight; // @warn $fdTitle $fabric-font    $fdTitle == nth($fabric-font, 1);
        @if $fdTitle==nth($fabric-font, 1) {
            font-weight: call($fdValue);
        }
    }
}

// Converts the font size out In EM
@mixin uiFontSize($fabric-font) {

    @each $fontDef in $fontSizes {

        // check Office UI Frabric name
        $fdTitle: nth($fontDef, 1); // base office ui fabric in PX value
        $fdSizePx: nth($fontDef, 2); // base office ui fabric in EM value
        $fdSizeEm: if($useRem, pxToRem($fdSizePx), pxToEm($fdSizePx)); // get font weight
        $fdWeight: nth($fontDef, 3);

        @if $fdTitle==$fabric-font {
            font-size: $fdSizeEm;
        }
    }
}