name = $name;
$this->contents = $this->deferContent($contents, $attributes['defer'] ?? false);
unset($attributes['defer']);
$this->attributes = $attributes;
}
public function name(): string
{
return $this->name;
}
public function contents(): string
{
return $this->contents;
}
/**
* This method adds a title element and an aria-labelledby attribute to the SVG.
* To comply with accessibility standards, SVGs should have a title element.
* Check accessibility patterns for icons: https://www.deque.com/blog/creating-accessible-svgs/
*/
public function addTitle(string $title): string
{
// create title element
$titleElement = ''.$title.'';
// add role attribute to svg element
$this->attributes['role'] = 'img';
// add title element to svg
return preg_replace('/]*>/', "$0$titleElement", $this->contents);
}
public function toHtml(): string
{
// Check if the title attribute is set and add a title element to the SVG
if (array_key_exists('title', $this->attributes)) {
$this->contents = $this->addTitle($this->attributes['title']);
}
return str_replace(
'renderAttributes()),
$this->contents,
);
}
protected function deferContent(string $contents, $defer = false): string
{
if ($defer === false) {
return $contents;
}
$svgContent = Str::of($contents)
->replaceMatches('/]*>/', '')
->replaceMatches('/<\/svg>/', '')
->__toString();
// Force Unix line endings for hash.
$hashContent = str_replace(PHP_EOL, "\n", $svgContent);
$hash = 'icon-'.(is_string($defer) ? $defer : md5($hashContent));
$contents = str_replace($svgContent, strtr('', [':href' => '#'.$hash]), $contents).PHP_EOL;
$svgContent = ltrim($svgContent, PHP_EOL);
$contents .= <<
{$svgContent}
@endpush
@endonce
BLADE;
return $contents;
}
}