/**
* Merges all fonts properties.
*
* @since 1.0.0
*
* @param [type] $input_css [description]
* @return [type] [description]
*/
public function merge_font($input_css)
{
$font_prop_default =& $this->parser->data['csstidy']['font_prop_default'];
$new_font_value = '';
$important = '';
// Skip if no font-family and font-size set.
if (isset($input_css['font-family']) && isset($input_css['font-size'])) {
// Fix several words in font-family - add quotes.
if (isset($input_css['font-family'])) {
$families = explode(",", $input_css['font-family']);
$result_families = array();
foreach ($families as $family) {
$family = trim($family);
$len = strlen($family);
if (strpos($family, " ") && !('"' === $family[0] && '"' === $family[$len - 1] || "'" === $family[0] && "'" === $family[$len - 1])) {
$family = '"' . $family . '"';
}
$result_families[] = $family;
}
$input_css['font-family'] = implode(",", $result_families);
}
foreach ($font_prop_default as $font_property => $default_value) {
// Skip if property does not exist.
if (!isset($input_css[$font_property])) {
continue;
}
$cur_value = $input_css[$font_property];
// Skip if default value is used.
if ($cur_value === $default_value) {
continue;
}
// Remove !important.
if ($this->parser->is_important($cur_value)) {
$important = ' !important';
$cur_value = $this->parser->gvw_important($cur_value);
}
$new_font_value .= $cur_value;
// Add delimiter.
$new_font_value .= 'font-size' === $font_property && isset($input_css['line-height']) ? '/' : ' ';
}
$new_font_value = trim($new_font_value);
// Delete all font properties.
foreach ($font_prop_default as $font_property => $default_value) {
if ('font' !== $font_property || !$new_font_value) {
unset($input_css[$font_property]);
}
}
// Add new font property.
if ('' !== $new_font_value) {
$input_css['font'] = $new_font_value . $important;
}
}
return $input_css;
}
