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'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = toCSSLineSpacing;
// Line spacing names and their values.
var LINE_SPACING_100 = exports.LINE_SPACING_100 = '125%';
var LINE_SPACING_115 = exports.LINE_SPACING_115 = '138%';
var LINE_SPACING_150 = exports.LINE_SPACING_150 = '165%';
var LINE_SPACING_200 = exports.LINE_SPACING_200 = '232%';
var SINGLE_LINE_SPACING = exports.SINGLE_LINE_SPACING = LINE_SPACING_100;
var DOUBLE_LINE_SPACING = exports.DOUBLE_LINE_SPACING = LINE_SPACING_200;
var NUMBER_VALUE_PATTERN = /^\d+(.\d+)?$/;
// Normalize the css line-height vlaue to percentage-based value if applicable.
// Also, it calibrates the incorrect line spacing value exported from Google
// Doc.
function toCSSLineSpacing(source) {
if (!source) {
return '';
}
var strValue = String(source);
// e.g. line-height: 1.5;
if (NUMBER_VALUE_PATTERN.test(strValue)) {
var numValue = parseFloat(strValue);
strValue = String(Math.round(numValue * 100)) + '%';
}
// Google Doc exports line spacing with wrong values. For instance:
// - Single => 100%
// - 1.15 => 115%
// - Double => 200%
// But the actual CSS value measured in Google Doc is like this:
// - Single => 125%
// - 1.15 => 138%
// - Double => 232%
// The following `if` block will calibrate the value if applicable.
if (strValue === '100%') {
return LINE_SPACING_100;
}
if (strValue === '115%') {
return LINE_SPACING_115;
}
if (strValue === '150%') {
return LINE_SPACING_150;
}
if (strValue === '200%') {
return LINE_SPACING_200;
}
// e.g. line-height: 15px;
return strValue;
}
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