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<?php |
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/* For licensing terms, see /license.txt */ |
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use ChamiloSession as Session; |
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/** |
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* Class ReadingComprehension |
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* |
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* This class allows to instantiate an object of type READING_COMPREHENSION |
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* extending the class question |
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* |
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* @package chamilo.exercise |
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**/ |
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class ReadingComprehension extends UniqueAnswer |
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{ |
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public static $typePicture = 'reading-comprehension.png'; |
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public static $explanationLangVar = 'ReadingComprehension'; |
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/** |
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* Defines the different speeds of scrolling for the reading window, |
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* in words per minute. If 300 words text in 50w/m, then the moving |
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* window will progress from top to bottom in 6 minutes |
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* @var array $speeds |
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*/ |
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public static $speeds = [ |
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1 => 50, |
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2 => 100, |
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3 => 175, |
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4 => 300, |
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5 => 600 |
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]; |
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/** |
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* The number of words in the question description (which serves as the |
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* text to read) |
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* @var int $wordsCount |
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*/ |
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public $wordsCount = 0; |
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/** |
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* Number of words expected to show per refresh |
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* @var int |
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*/ |
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public $expectedWordsPerRefresh = 0; |
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/** |
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* Refresh delay in seconds |
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* @var int |
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*/ |
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public $refreshTime = 3; |
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/** |
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* Constructor |
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*/ |
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public function __construct() |
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{ |
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parent::__construct(); |
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$this->type = READING_COMPREHENSION; |
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$this->isContent = $this->getIsContent(); |
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} |
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/** |
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* @param $wordsCount |
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* @param $turns |
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* @param $text |
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*/ |
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private function displayReading($wordsCount, $turns, $text) |
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{ |
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$view = new Template('', false, false, false, true, false, false); |
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$template = $view->get_template('exercise/reading_comprehension.tpl'); |
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$view->assign('id', $this->id); |
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$view->assign('text', nl2br($text)); |
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$view->assign('words_count', $wordsCount); |
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$view->assign('turns', $turns); |
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$view->assign('refresh_time', $this->refreshTime); |
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$view->display($template); |
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} |
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public function processText($text) |
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{ |
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// Refresh is set to 5s, but speed is in words per minute |
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$wordsPerSecond = self::$speeds[$this->level] / 60; |
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$this->expectedWordsPerRefresh = intval($wordsPerSecond * $this->refreshTime); |
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if (empty($text)) { |
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// We have an issue here... how do we treat this case? |
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// For now, let's define a default case |
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$text = get_lang('NoExercise'); |
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} |
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$words = str_word_count($text, 2, '0..9'); |
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$indexes = array_keys($words); |
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$tagEnd = '</span>'; |
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$tagStart = $tagEnd.'<span class="text-highlight">'; |
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$this->wordsCount = count($words); |
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$turns = ceil( |
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$this->wordsCount / $this->expectedWordsPerRefresh |
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); |
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$firstIndex = $indexes[0]; |
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for ($i = 1; $i <= $turns; $i++) { |
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$text = substr_replace($text, $tagStart, $firstIndex, 0); |
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if ($i * $this->expectedWordsPerRefresh <= count($words)) { |
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$newIndex = $i * $this->expectedWordsPerRefresh; |
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if (isset($indexes[$newIndex])) { |
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$nextFirstIndex = $indexes[$newIndex]; |
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$firstIndex = $nextFirstIndex + (strlen($tagStart) * $i); |
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} |
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} |
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} |
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$pos = strpos($text, $tagEnd); |
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$text = substr_replace($text, '', $pos, strlen($tagEnd)); |
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$text .= $tagEnd; |
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$this->displayReading($this->wordsCount, $turns, $text); |
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} |
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/** |
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* Returns total count of words of the text to read |
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* @return int |
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*/ |
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public function getWordsCount() |
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{ |
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$words = str_word_count($this->selectDescription(), 2, '0..9'); |
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$this->wordsCount = count($words); |
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return $this->wordsCount; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function createForm(&$form) |
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{ |
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// Categories |
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$tabCat = TestCategory::getCategoriesIdAndName(); |
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$form->addSelect('questionCategory', get_lang('Category'), $tabCat); |
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// Advanced parameters |
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$levels = self::get_default_levels(); |
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$form->addSelect('questionLevel', get_lang('Difficulty'), $levels); |
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$form->addElement('hidden', 'answerType', READING_COMPREHENSION); |
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$form->addTextarea('questionDescription', get_lang('Text'), ['rows' => 20]); |
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// question name |
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View Code Duplication |
if (api_get_configuration_value('save_titles_as_html')) { |
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$editorConfig = ['ToolbarSet' => 'Minimal']; |
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$form->addHtmlEditor( |
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'questionName', |
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get_lang('Question'), |
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false, |
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false, |
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$editorConfig, |
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true |
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); |
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} else { |
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$form->addText('questionName', get_lang('Question'), false); |
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} |
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// hidden values |
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$my_id = isset($_REQUEST['myid']) ? intval($_REQUEST['myid']) : null; |
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$form->addElement('hidden', 'myid', $my_id); |
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$form->addRule('questionName', get_lang('GiveQuestion'), 'required'); |
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$isContent = isset($_REQUEST['isContent']) ? intval($_REQUEST['isContent']) : null; |
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// default values |
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$defaults = array(); |
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$defaults['questionName'] = $this->question; |
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$defaults['questionDescription'] = $this->description; |
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$defaults['questionLevel'] = $this->level; |
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$defaults['questionCategory'] = $this->category; |
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// Came from he question pool |
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if (isset($_GET['fromExercise'])) { |
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$form->setDefaults($defaults); |
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} |
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View Code Duplication |
if (!empty($_REQUEST['myid'])) { |
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$form->setDefaults($defaults); |
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} else { |
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if ($isContent == 1) { |
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$form->setDefaults($defaults); |
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} |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public static function get_default_levels() |
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{ |
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$select_level = array( |
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1 => sprintf(get_lang('ReadingComprehensionLevelX'), self::$speeds[1]), |
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2 => sprintf(get_lang('ReadingComprehensionLevelX'), self::$speeds[2]), |
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3 => sprintf(get_lang('ReadingComprehensionLevelX'), self::$speeds[3]), |
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4 => sprintf(get_lang('ReadingComprehensionLevelX'), self::$speeds[4]), |
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5 => sprintf(get_lang('ReadingComprehensionLevelX'), self::$speeds[5]) |
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); |
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return $select_level; |
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} |
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} |
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chamilo /
chamilo-lms
