/**
* Static callback that does the minification.
* The method is called from within the compiled template.
*
* @param array $files List of files that need to minified.
* @param string $type Is it a js or a css minification in question.
* @param Htpl $htpl Current htpl instance.
*
* @throws HtplException
*/
public static function minifyCallback($files, $type, Htpl $htpl)
{
// get minify driver instance
$options = $htpl->getOptions()['minify'];
if (empty($options)) {
throw new HtplException('Missing options for w-minify function.');
}
// get driver
$driver = isset($options['driver']) ? $options['driver'] : '\\Webiny\\Htpl\\Functions\\WMinify\\WMinify';
if (!is_object($driver)) {
$driver = new $driver($htpl);
}
if (!$driver instanceof \Webiny\Htpl\Functions\WMinify\WMinifyAbstract) {
throw new HtplException('Minify driver must implement \\Webiny\\Htpl\\Functions\\WMinify\\WMinifyAbstract.');
}
if ($type == 'js') {
$minifiedFile = $driver->minifyJavaScript($files);
echo '<script type="text/javascript" src="' . $minifiedFile . '"/>';
} else {
if ($type == 'css') {
$minifiedFile = $driver->minifyCss($files);
echo '<link rel="stylesheet" href="' . $minifiedFile . '"/>';
} else {
throw new HtplException(sprintf('Unknown $type value for minify callback: %s', $type));
}
}
}
public function testGetSource()
{
$provider = new ArrayProvider(['test.htpl' => '{var}']);
$htpl = new Htpl($provider);
$htpl->assign('var', 'FooBar');
$expectedResult = '<?php echo htmlspecialchars($this->getVar(\'var\', $this->vars), ENT_QUOTES | ENT_SUBSTITUTE, \'utf-8\');?>';
$this->assertSame($expectedResult, trim($htpl->build('test.htpl')->getSource()));
}
/**
* Static callback that includes a Htpl template.
*
* @param string $file Path to the Htpl template.
* @param Htpl $htpl Current Htpl instance.
*
* @throws HtplException
*/
public static function htpl($file, Htpl $htpl)
{
// validate the variable value
// only htpl templates are allowed
if (substr($file, -5) != '.htpl') {
throw new HtplException(sprintf('Failed to include %s. Only .htpl templates can be included.', $file));
}
// use the same htpl instance so we benefit from the internal cache and already initialized provider and so we
// also pass the current assigned variables
$htpl->display($file);
}
/**
* Method that does the actual compiling.
*
* @param string $templateName Template name that should be compiled.
*
* @return Layout Compiled template in form of a string.
* @throws HtplException
*/
private function compileLayout($templateName)
{
// before we can do the template compile, we need to solve the template inheritance
$layout = LayoutTree::getLayout($this->htpl->getTemplateProvider(), $templateName);
$template = $layout->getSource();
// validate that the raw template doesn't contain any PHP code
if (strpos($template, '<?') !== false) {
throw new HtplException(sprintf('Template "%s" contains PHP tags which are not allowed.', $templateName));
}
// strip out w-literal content before parsing any tags or variables
$literals = TagLexer::parse($template)->select('w-literal');
$literalReplacements = [];
foreach ($literals as $l) {
$id = '<!-- htpl: w-literal => ' . uniqid() . ' -->';
$literalReplacements[$id] = $l['content'];
$template = str_replace($l['outerHtml'], $id, $template);
}
// parse the variables
$template = VarLexer::parse($template, $this->htpl);
// get a list of possible functions (tags) that we support
$functions = $this->htpl->getFunctions();
$lexedTemplate = TagLexer::parse($template);
foreach ($functions as $tag => $callback) {
$tags = $lexedTemplate->select($tag);
foreach ($tags as $t) {
$lexedTemplate = TagLexer::parse($template);
$currentMatch = $lexedTemplate->select($tag);
if (count($currentMatch) < 1) {
continue;
} else {
$currentMatch = $currentMatch[0];
}
$content = $currentMatch['content'];
$attributes = isset($currentMatch['attributes']) ? $currentMatch['attributes'] : [];
try {
// extract the opening and closing tag
$outerContent = str_replace($currentMatch['content'], '', $currentMatch['outerHtml']);
$closingTag = '</' . $tag . '>';
$openingTag = str_replace($closingTag, '', $outerContent);
$instance = new $callback();
$result = $instance->parseTag($content, $attributes, $this->htpl);
if (!$result) {
continue;
}
// check if we have context defined
$contextStart = '';
$contextEnd = '';
if (isset($result['contexts'])) {
foreach ($result['contexts'] as $c) {
$contextStart .= '<!-- htpl-context-start:' . $c . ' -->' . "\n";
$contextEnd = '<!-- htpl-context-end:' . $c . ' -->' . "\n" . $contextEnd;
}
}
// do the replacement
if (isset($result['content'])) {
$replacement = $contextStart . $result['openingTag'] . $result['content'] . $result['closingTag'] . $contextEnd;
// we replace with offset 1 cause, we always do the replacement on the current template instance
//$template = str_replace($currentMatch['outerHtml'], $replacement, $template);
$template = preg_replace('/(\\s+|)' . preg_quote($currentMatch['outerHtml'], '/') . '(\\s+|)/', $replacement, $template);
} else {
$replacement = $contextStart . $result['openingTag'] . $currentMatch['content'] . $result['closingTag'] . $contextEnd;
$template = preg_replace('/(\\s+|)' . preg_quote($currentMatch['outerHtml'], '/') . '(\\s+|)/', $replacement, $template);
/*
//$template = str_replace($openingTag, $result['openingTag'], $template);
$template = preg_replace('/(\s+|)' . preg_quote($openingTag, '/') . '(\s+|)/',
$result['openingTag'], $template);
if (isset($result['closingTag'])) {
//$template = str_replace($closingTag, $result['closingTag'], $template);
$template = preg_replace('/(\s+|)' . preg_quote($closingTag, '/') . '(\s+|)/',
$result['closingTag'], $template);
}
*/
}
} catch (HtplException $e) {
throw new HtplException('Htpl in unable to parse your template near: ' . $openingTag . "\n\n " . $e->getMessage());
}
}
}
// adjust contexts
$template = $this->adjustContexts($template);
// optimize template execution
/*$template = preg_replace('/\?>(\s+|)\<\?php/', "\n", $template);*/
// put back the literals
foreach ($literalReplacements as $lrId => $lrVal) {
$template = str_replace($lrId, $lrVal, $template);
}
// save the new source
$layout->setSource($template);
return $layout;
}
public function testSetGetLexerTags()
{
$provider = new ArrayProvider(['test.htpl' => '{var}']);
$htpl = new Htpl($provider);
$this->assertSame(['varStartFlag' => '{', 'varEndFlag' => '}'], $htpl->getLexerFlags());
$htpl->setLexerFlags('{{', '}}');
$this->assertSame(['varStartFlag' => '{{', 'varEndFlag' => '}}'], $htpl->getLexerFlags());
}
