/**
* Returns the rendered head tag
* @param boolean echo result
* @return string
*/
public function render($output = false)
{
$close_single = Xhtml::instance()->is_xhtml ? ' />' : '>';
$html = '<head>';
$html .= '<title>' . $this->title . '</title>';
foreach ($this->meta_extra as $key => $value) {
$html .= '<meta' . Html::attributes(array('http-equiv' => $key, 'content' => $value)) . $close_single;
}
foreach ($this->metas as $key => $value) {
$html .= '<meta' . Html::attributes(array('name' => $key, 'content' => $value)) . $close_single;
}
foreach ($this->links as $value) {
$html .= '<link' . Html::attributes($value) . $close_single;
}
// styles
if (Kohana::config('xhtml.cache_styles')) {
$html .= Html::style($this->cached_styles);
} else {
foreach ($this->styles as $value) {
$style_file = NULL;
$style_atts = array();
$style_cond = NULL;
if (is_string($value)) {
$style_file = $value;
} elseif (is_array($value)) {
if (isset($value['file'])) {
$style_file = $value['file'];
unset($value['file']);
}
if (isset($value['condition'])) {
$style_cond = $value['condition'];
unset($value['condition']);
}
$style_atts = $value;
}
if ($style_file) {
if ($style_cond) {
$html .= '<!--[if ' . $style_cond . ']>';
}
$html .= Html::style($style_file, $style_atts);
if ($style_cond) {
$html .= '<![endif]-->';
}
}
}
}
// scripts
if (Kohana::config('xhtml.cache_scripts')) {
$html .= Html::script($this->cached_scripts);
} else {
foreach ($this->scripts as $file) {
$html .= Html::script($file);
}
foreach ($this->codes as $code) {
$html .= '<script' . Html::attributes(array('type' => 'text/javascript')) . '>//<![CDATA[' . "\n" . $code . "\n" . '//]]></script>';
}
}
$html .= '</head>';
if ($output) {
echo $html;
}
return $html;
}
