function csstidy_optimise::dissolve_short_bg in Advanced CSS/JS Aggregation 7

Same name and namespace in other branches

1. 6 advagg_css_compress/csstidy/class.csstidy_optimise.inc \csstidy_optimise::dissolve_short_bg()

Dissolve background property

@version 1.0 @todo full CSS 3 compliance

Parameters

string $str_value:

Return value

array

See also

merge_bg()

1 call to csstidy_optimise::dissolve_short_bg()

csstidy_optimise::shorthands in advagg_css_compress/csstidy/class.csstidy_optimise.inc

Optimises shorthands @access public @version 1.0

File

advagg_css_compress/csstidy/class.csstidy_optimise.inc, line 661

Class

csstidy_optimise

CSS Optimising Class

Code

function dissolve_short_bg($str_value) {

  // don't try to explose background gradient !
  if (stripos($str_value, "gradient(") !== FALSE) {
    return array(
      'background' => $str_value,
    );
  }
  $background_prop_default =& $GLOBALS['csstidy']['background_prop_default'];
  $repeat = array(
    'repeat',
    'repeat-x',
    'repeat-y',
    'no-repeat',
    'space',
  );
  $attachment = array(
    'scroll',
    'fixed',
    'local',
  );
  $clip = array(
    'border',
    'padding',
  );
  $origin = array(
    'border',
    'padding',
    'content',
  );
  $pos = array(
    'top',
    'center',
    'bottom',
    'left',
    'right',
  );
  $important = '';
  $return = array(
    'background-image' => null,
    'background-size' => null,
    'background-repeat' => null,
    'background-position' => null,
    'background-attachment' => null,
    'background-clip' => null,
    'background-origin' => null,
    'background-color' => null,
  );
  if (csstidy::is_important($str_value)) {
    $important = ' !important';
    $str_value = csstidy::gvw_important($str_value);
  }
  $str_value = csstidy_optimise::explode_ws(',', $str_value);
  for ($i = 0; $i < count($str_value); $i++) {
    $have['clip'] = false;
    $have['pos'] = false;
    $have['color'] = false;
    $have['bg'] = false;
    if (is_array($str_value[$i])) {
      $str_value[$i] = $str_value[$i][0];
    }
    $str_value[$i] = csstidy_optimise::explode_ws(' ', trim($str_value[$i]));
    for ($j = 0; $j < count($str_value[$i]); $j++) {
      if ($have['bg'] === false && (substr($str_value[$i][$j], 0, 4) === 'url(' || $str_value[$i][$j] === 'none')) {
        $return['background-image'] .= $str_value[$i][$j] . ',';
        $have['bg'] = true;
      }
      elseif (in_array($str_value[$i][$j], $repeat, true)) {
        $return['background-repeat'] .= $str_value[$i][$j] . ',';
      }
      elseif (in_array($str_value[$i][$j], $attachment, true)) {
        $return['background-attachment'] .= $str_value[$i][$j] . ',';
      }
      elseif (in_array($str_value[$i][$j], $clip, true) && !$have['clip']) {
        $return['background-clip'] .= $str_value[$i][$j] . ',';
        $have['clip'] = true;
      }
      elseif (in_array($str_value[$i][$j], $origin, true)) {
        $return['background-origin'] .= $str_value[$i][$j] . ',';
      }
      elseif ($str_value[$i][$j][0] === '(') {
        $return['background-size'] .= substr($str_value[$i][$j], 1, -1) . ',';
      }
      elseif (in_array($str_value[$i][$j], $pos, true) || is_numeric($str_value[$i][$j][0]) || $str_value[$i][$j][0] === null || $str_value[$i][$j][0] === '-' || $str_value[$i][$j][0] === '.') {
        $return['background-position'] .= $str_value[$i][$j];
        if (!$have['pos']) {
          $return['background-position'] .= ' ';
        }
        else {
          $return['background-position'] .= ',';
        }
        $have['pos'] = true;
      }
      elseif (!$have['color']) {
        $return['background-color'] .= $str_value[$i][$j] . ',';
        $have['color'] = true;
      }
    }
  }
  foreach ($background_prop_default as $bg_prop => $default_value) {
    if ($return[$bg_prop] !== null) {
      $return[$bg_prop] = substr($return[$bg_prop], 0, -1) . $important;
    }
    else {
      $return[$bg_prop] = $default_value . $important;
    }
  }
  return $return;
}