Language.php

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<?php
namespace TYPO3\CMS\Rtehtmlarea\Extension;

class Language extends \TYPO3\CMS\Rtehtmlarea\RteHtmlAreaApi {

    protected $extensionKey = 'rtehtmlarea';

    // The key of the extension that is extending htmlArea RTE
    protected $pluginName = 'Language';

    // The name of the plugin registered by the extension
    protected $relativePathToLocallangFile = 'extensions/Language/locallang.xlf';

    // Path to this main locallang file of the extension relative to the extension dir.
    protected $relativePathToSkin = 'extensions/Language/skin/htmlarea.css';

    // Path to the skin (css) file relative to the extension dir.
    protected $htmlAreaRTE;

    // Reference to the invoking object
    protected $thisConfig;

    // Reference to RTE PageTSConfig
    protected $toolbar;

    // Reference to RTE toolbar array
    protected $LOCAL_LANG;

    // Frontend language array
    protected $pluginButtons = 'lefttoright,righttoleft,language,showlanguagemarks';

    protected $convertToolbarForHtmlAreaArray = array(
        'lefttoright' => 'LeftToRight',
        'righttoleft' => 'RightToLeft',
        'language' => 'Language',
        'showlanguagemarks' => 'ShowLanguageMarks'
    );

    public function main($parentObject) {
        if (!\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('static_info_tables')) {
            $this->pluginButtons = \TYPO3\CMS\Core\Utility\GeneralUtility::rmFromList('language', $this->pluginButtons);
        }
        return parent::main($parentObject);
    }

    public function buildJavascriptConfiguration($RTEcounter) {
        $button = 'language';
        $registerRTEinJavascriptString = '';
        if (!is_array($this->thisConfig['buttons.']) || !is_array($this->thisConfig['buttons.'][($button . '.')])) {
            $registerRTEinJavascriptString .= '
            RTEarea[' . $RTEcounter . '].buttons.' . $button . ' = new Object();';
        }
        if ($this->htmlAreaRTE->is_FE()) {
            $first = $GLOBALS['TSFE']->getLLL('No language mark', $this->LOCAL_LANG);
        } else {
            $first = $GLOBALS['LANG']->getLL('No language mark');
        }
        $languages = array('none' => $first);
        $languages = array_flip(array_merge($languages, $this->getLanguages()));
        $languagesJSArray = array();
        foreach ($languages as $key => $value) {
            $languagesJSArray[] = array('text' => $key, 'value' => $value);
        }
        $languagesJSArray = json_encode(array('options' => $languagesJSArray));
        $registerRTEinJavascriptString .= '
            RTEarea[' . $RTEcounter . '].buttons.' . $button . '.dataUrl = "' . ($this->htmlAreaRTE->is_FE() && $GLOBALS['TSFE']->absRefPrefix ? $GLOBALS['TSFE']->absRefPrefix : '') . $this->htmlAreaRTE->writeTemporaryFile('', ($button . '_' . $this->htmlAreaRTE->contentLanguageUid), 'js', $languagesJSArray) . '";';
        return $registerRTEinJavascriptString;
    }

    public function getLanguages() {
        $nameArray = array();
        if (\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('static_info_tables')) {
            $where = '1=1';
            $table = 'static_languages';
            $lang = \SJBR\StaticInfoTables\Utility\LocalizationUtility::getCurrentLanguage();
            $titleFields = \SJBR\StaticInfoTables\Utility\LocalizationUtility::getLabelFields($table, $lang);
            $prefixedTitleFields = array();
            foreach ($titleFields as $titleField) {
                $prefixedTitleFields[] = $table . '.' . $titleField;
            }
            $labelFields = implode(',', $prefixedTitleFields);
            // Restrict to certain languages
            if (is_array($this->thisConfig['buttons.']) && is_array($this->thisConfig['buttons.']['language.']) && isset($this->thisConfig['buttons.']['language.']['restrictToItems'])) {
                $languageList = implode('\',\'', \TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode(',', $GLOBALS['TYPO3_DB']->fullQuoteStr(strtoupper($this->thisConfig['buttons.']['language.']['restrictToItems']), $table)));
                $where .= ' AND ' . $table . '.lg_iso_2 IN (' . $languageList . ')';
            }
            $res = $GLOBALS['TYPO3_DB']->exec_SELECTquery($table . '.lg_iso_2,' . $table . '.lg_country_iso_2,' . $labelFields, $table, $where . ' AND lg_constructed = 0 ' . ($this->htmlAreaRTE->is_FE() ? $GLOBALS['TSFE']->sys_page->enableFields($table) : \TYPO3\CMS\Backend\Utility\BackendUtility::BEenableFields($table) . \TYPO3\CMS\Backend\Utility\BackendUtility::deleteClause($table)));
            $prefixLabelWithCode = (boolean)$this->thisConfig['buttons.']['language.']['prefixLabelWithCode'];
            $postfixLabelWithCode = (boolean)$this->thisConfig['buttons.']['language.']['postfixLabelWithCode'];
            while ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
                $code = strtolower($row['lg_iso_2']) . ($row['lg_country_iso_2'] ? '-' . strtoupper($row['lg_country_iso_2']) : '');
                foreach ($titleFields as $titleField) {
                    if ($row[$titleField]) {
                        $nameArray[$code] = $prefixLabelWithCode ? $code . ' - ' . $row[$titleField] : ($postfixLabelWithCode ? $row[$titleField] . ' - ' . $code : $row[$titleField]);
                        break;
                    }
                }
            }
            $GLOBALS['TYPO3_DB']->sql_free_result($res);
            uasort($nameArray, 'strcoll');
        }
        return $nameArray;
    }

    public function applyToolbarConstraints($show) {
        if (!\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('static_info_tables')) {
            return array_diff($show, array('language'));
        } else {
            return $show;
        }
    }

}