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   1  <?php
   2  
   3  /*
   4  * @package   s9e\TextFormatter
   5  * @copyright Copyright (c) 2010-2019 The s9e Authors
   6  * @license   http://www.opensource.org/licenses/mit-license.php The MIT License
   7  */
   8  namespace s9e\TextFormatter\Configurator;
   9  use ReflectionClass;
  10  use s9e\TextFormatter\Configurator;
  11  use s9e\TextFormatter\Configurator\Helpers\ConfigHelper;
  12  use s9e\TextFormatter\Configurator\JavaScript\CallbackGenerator;
  13  use s9e\TextFormatter\Configurator\JavaScript\Code;
  14  use s9e\TextFormatter\Configurator\JavaScript\ConfigOptimizer;
  15  use s9e\TextFormatter\Configurator\JavaScript\Dictionary;
  16  use s9e\TextFormatter\Configurator\JavaScript\Encoder;
  17  use s9e\TextFormatter\Configurator\JavaScript\HintGenerator;
  18  use s9e\TextFormatter\Configurator\JavaScript\Minifier;
  19  use s9e\TextFormatter\Configurator\JavaScript\Minifiers\Noop;
  20  use s9e\TextFormatter\Configurator\JavaScript\RegexpConvertor;
  21  use s9e\TextFormatter\Configurator\JavaScript\StylesheetCompressor;
  22  use s9e\TextFormatter\Configurator\RendererGenerators\XSLT;
  23  class JavaScript
  24  {
  25      protected $callbackGenerator;
  26      protected $config;
  27      protected $configOptimizer;
  28      protected $configurator;
  29      public $encoder;
  30      public $exportMethods;
  31      public $exports = [
  32          'disablePlugin',
  33          'disableTag',
  34          'enablePlugin',
  35          'enableTag',
  36          'getLogger',
  37          'parse',
  38          'preview',
  39          'registeredVars',
  40          'setNestingLimit',
  41          'setParameter',
  42          'setTagLimit'
  43      ];
  44      protected $hintGenerator;
  45      protected $minifier;
  46      protected $stylesheetCompressor;
  47      protected $xsl;
  48  	public function __construct(Configurator $configurator)
  49      {
  50          $this->exportMethods =& $this->exports;
  51          $this->encoder              = new Encoder;
  52          $this->callbackGenerator    = new CallbackGenerator;
  53          $this->configOptimizer      = new ConfigOptimizer($this->encoder);
  54          $this->configurator         = $configurator;
  55          $this->hintGenerator        = new HintGenerator;
  56          $this->stylesheetCompressor = new StylesheetCompressor;
  57      }
  58  	public function getMinifier()
  59      {
  60          if (!isset($this->minifier))
  61              $this->minifier = new Noop;
  62          return $this->minifier;
  63      }
  64  	public function getParser(array $config = \null)
  65      {
  66          $this->configOptimizer->reset();
  67          $xslt      = new XSLT;
  68          $xslt->optimizer->normalizer->remove('RemoveLivePreviewAttributes');
  69          $this->xsl = $xslt->getXSL($this->configurator->rendering);
  70          $this->config = (isset($config)) ? $config : $this->configurator->asConfig();
  71          $this->config = ConfigHelper::filterConfig($this->config, 'JS');
  72          $this->config = $this->callbackGenerator->replaceCallbacks($this->config);
  73          $src = $this->getHints() . $this->injectConfig($this->getSource());
  74          $src .= "if (!window['s9e']) window['s9e'] = {};\n" . $this->getExports();
  75          $src = $this->getMinifier()->get($src);
  76          $src = '(function(){' . $src . '})()';
  77          return $src;
  78      }
  79  	public function setMinifier($minifier)
  80      {
  81          if (\is_string($minifier))
  82          {
  83              $className = __NAMESPACE__ . '\\JavaScript\\Minifiers\\' . $minifier;
  84              $args = \array_slice(\func_get_args(), 1);
  85              if (!empty($args))
  86              {
  87                  $reflection = new ReflectionClass($className);
  88                  $minifier   = $reflection->newInstanceArgs($args);
  89              }
  90              else
  91                  $minifier = new $className;
  92          }
  93          $this->minifier = $minifier;
  94          return $minifier;
  95      }
  96  	protected function encode($value)
  97      {
  98          return $this->encoder->encode($value);
  99      }
 100  	protected function getExports()
 101      {
 102          if (empty($this->exports))
 103              return '';
 104          $exports = [];
 105          foreach ($this->exports as $export)
 106              $exports[] = "'" . $export . "':" . $export;
 107          \sort($exports);
 108          return "window['s9e']['TextFormatter'] = {" . \implode(',', $exports) . '}';
 109      }
 110  	protected function getHints()
 111      {
 112          $this->hintGenerator->setConfig($this->config);
 113          $this->hintGenerator->setPlugins($this->configurator->plugins);
 114          $this->hintGenerator->setXSL($this->xsl);
 115          return $this->hintGenerator->getHints();
 116      }
 117  	protected function getPluginsConfig()
 118      {
 119          $plugins = new Dictionary;
 120          foreach ($this->config['plugins'] as $pluginName => $pluginConfig)
 121          {
 122              if (!isset($pluginConfig['js']))
 123                  continue;
 124              $js = $pluginConfig['js'];
 125              unset($pluginConfig['js']);
 126              unset($pluginConfig['className']);
 127              if (isset($pluginConfig['quickMatch']))
 128              {
 129                  $valid = [
 130                      '[[:ascii:]]',
 131                      '[\\xC0-\\xDF][\\x80-\\xBF]',
 132                      '[\\xE0-\\xEF][\\x80-\\xBF]{2}',
 133                      '[\\xF0-\\xF7][\\x80-\\xBF]{3}'
 134                  ];
 135                  $regexp = '#(?>' . \implode('|', $valid) . ')+#';
 136                  if (\preg_match($regexp, $pluginConfig['quickMatch'], $m))
 137                      $pluginConfig['quickMatch'] = $m[0];
 138                  else
 139                      unset($pluginConfig['quickMatch']);
 140              }
 141              $globalKeys = [
 142                  'quickMatch'  => 1,
 143                  'regexp'      => 1,
 144                  'regexpLimit' => 1
 145              ];
 146              $globalConfig = \array_intersect_key($pluginConfig, $globalKeys);
 147              $localConfig  = \array_diff_key($pluginConfig, $globalKeys);
 148              if (isset($globalConfig['regexp']) && !($globalConfig['regexp'] instanceof Code))
 149                  $globalConfig['regexp'] = new Code(RegexpConvertor::toJS($globalConfig['regexp'], \true));
 150              $globalConfig['parser'] = new Code(
 151                  '/**
 152                  * @param {!string} text
 153                  * @param {!Array.<Array>} matches
 154                  */
 155                  function(text, matches)
 156                  {
 157                      /** @const */
 158                      var config=' . $this->encode($localConfig) . ';
 159                      ' . $js . '
 160                  }'
 161              );
 162              $plugins[$pluginName] = $globalConfig;
 163          }
 164          return $plugins;
 165      }
 166  	protected function getRegisteredVarsConfig()
 167      {
 168          $registeredVars = $this->config['registeredVars'];
 169          unset($registeredVars['cacheDir']);
 170          return new Dictionary($registeredVars);
 171      }
 172  	protected function getRootContext()
 173      {
 174          return $this->config['rootContext'];
 175      }
 176  	protected function getSource()
 177      {
 178          $rootDir = __DIR__ . '/..';
 179          $src     = '';
 180          $logger = (\in_array('getLogger', $this->exports)) ? 'Logger.js' : 'NullLogger.js';
 181          $files   = \glob($rootDir . '/Parser/AttributeFilters/*.js');
 182          $files[] = $rootDir . '/Parser/utils.js';
 183          $files[] = $rootDir . '/Parser/FilterProcessing.js';
 184          $files[] = $rootDir . '/Parser/' . $logger;
 185          $files[] = $rootDir . '/Parser/Tag.js';
 186          $files[] = $rootDir . '/Parser.js';
 187          if (\in_array('preview', $this->exports, \true))
 188          {
 189              $files[] = $rootDir . '/render.js';
 190              $src .= '/** @const */ var xsl=' . $this->getStylesheet() . ";\n";
 191          }
 192          $src .= \implode("\n", \array_map('file_get_contents', $files));
 193          return $src;
 194      }
 195  	protected function getStylesheet()
 196      {
 197          return $this->stylesheetCompressor->encode($this->xsl);
 198      }
 199  	protected function getTagsConfig()
 200      {
 201          $tags = new Dictionary;
 202          foreach ($this->config['tags'] as $tagName => $tagConfig)
 203          {
 204              if (isset($tagConfig['attributes']))
 205                  $tagConfig['attributes'] = new Dictionary($tagConfig['attributes']);
 206              $tags[$tagName] = $tagConfig;
 207          }
 208          return $tags;
 209      }
 210  	protected function injectConfig($src)
 211      {
 212          $config = \array_map(
 213              [$this, 'encode'],
 214              $this->configOptimizer->optimize(
 215                  [
 216                      'plugins'        => $this->getPluginsConfig(),
 217                      'registeredVars' => $this->getRegisteredVarsConfig(),
 218                      'rootContext'    => $this->getRootContext(),
 219                      'tagsConfig'     => $this->getTagsConfig()
 220                  ]
 221              )
 222          );
 223          $src = \preg_replace_callback(
 224              '/(\\nvar (' . \implode('|', \array_keys($config)) . '))(;)/',
 225              function ($m) use ($config)
 226              {
 227                  return $m[1] . '=' . $config[$m[2]] . $m[3];
 228              },
 229              $src
 230          );
 231          $src = $this->configOptimizer->getVarDeclarations() . $src;
 232          return $src;
 233      }
 234  }