get_loader());
static::set_custom_functions();
static::set_custom_filters();
}
return static::$environment;
}
protected static function set_custom_functions() {
$custom_functions = apply_filters( 'kvcoreidx/view/functions', [] );
if( count( $custom_functions ) ) {
foreach( $custom_functions as $i => $custom_function ) {
$name = $custom_function['name'] ?? null;
$callback = $custom_function['callback'] ?? null;
$options = $custom_function['options'] ?? [];
if ( is_string( $name ) && is_callable( $callback ) ) {
static::$environment->addFunction( new Custom_Function( $name, $callback, $options ) );
}
}
}
static::$environment->addFunction(new Custom_Function('function', function( string $function_name) {
$args = func_get_args();
array_shift($args);
$function_name = trim($function_name);
return call_user_func_array($function_name, ($args));
} ) );
}
protected static function set_custom_filters() {
$custom_filters = apply_filters( 'kvcoreidx/view/filters', [] );
if( count( $custom_filters ) ) {
foreach( $custom_filters as $i => $custom_filter ) {
$name = $custom_filter['name'] ?? null;
$callback = $custom_filter['callback'] ?? null;
$options = $custom_filter['options'] ?? [];
if ( is_string( $name ) && is_callable( $callback ) ) {
$the_filter = new \Twig_Filter( $name, $callback, $options );
static::$environment->addFilter( $the_filter );
}
}
}
}
public static function render( string $name, array $context = [] ) : string {
try {
return static::environment()->render( $name, static::apply_filters(
'render', $name, $context
) );
} catch ( Twig_Error_Loader $e ) {
return "Twig Loader Error: `{$e->getMessage()}`
";
} catch ( Twig_Error_Syntax $e ) {
return "Twig Syntax Error: `{$e->getMessage()}`
";
} catch ( Twig_Error_Runtime $e ) {
return "Twig Runtime Error: `{$e->getMessage()}`
";
} catch ( \Exception $e ) {
return "Unhandled Exception: `{$e->getMessage()}`
";
}
}
public static function display( string $name, array $context = [] ) {
try {
static::environment()->display( $name, static::apply_filters(
'display', $name, $context
) );
} catch ( Twig_Error_Loader $e ) {
echo "Twig Loader Error: `{$e->getMessage()}`
";
} catch ( Twig_Error_Syntax $e ) {
echo "Twig Syntax Error: `{$e->getMessage()}`
";
} catch ( Twig_Error_Runtime $e ) {
echo "Twig Runtime Error: `{$e->getMessage()}`
";
} catch ( \Exception $e ) {
echo "Unhandled Exception: `{$e->getMessage()}`
";
}
}
protected static function apply_filters( string $render_type, string $name, array $context = [] ) : array {
$context = static::apply_filter( 'kvcoreidx/view/context', $context );
if ( $render_type ) {
$context = static::apply_filter( "kvcoreidx/view/{$render_type}/context", $context );
}
if ( $name ) {
$context = static::apply_filter( "kvcoreidx/view/{$name}/context", $context );
}
if ( $name && $render_type ) {
$context = static::apply_filter( "kvcoreidx/view/{$name}/{$render_type}/context", $context );
}
return $context;
}
protected static function apply_filter( $filter_name, $context = [] ) : array {
if ( function_exists( 'apply_filters' ) ) {
$context = apply_filters( $filter_name, $context );
}
return $context;
}
}