CodeCompletion.php

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<?php
namespace TYPO3\CMS\T3editor;

class CodeCompletion {

    protected $ajaxObj;

    public function __construct() {
        $GLOBALS['LANG']->includeLLFile('EXT:t3editor/locallang.xlf');
    }

    public function processAjaxRequest($params, \TYPO3\CMS\Core\Http\AjaxRequestHandler &$ajaxObj) {
        $this->ajaxObj = $ajaxObj;
        $ajaxIdParts = explode('::', $ajaxObj->getAjaxID(), 2);
        $ajaxMethod = $ajaxIdParts[1];
        $response = array();
        // Process the AJAX requests:
        if ($ajaxMethod == 'loadTemplates') {
            $ajaxObj->setContent($this->loadTemplates((int)\TYPO3\CMS\Core\Utility\GeneralUtility::_GP('pageId')));
            $ajaxObj->setContentFormat('jsonbody');
        }
    }

    protected function loadTemplates($pageId, $templateId = 0) {
        $templates = array();
        // Check whether access is granted (only admin have access to sys_template records):
        if ($GLOBALS['BE_USER']->isAdmin()) {
            // Check whether there is a pageId given:
            if ($pageId) {
                $templates = $this->getMergedTemplates($pageId);
            } else {
                $this->ajaxObj->setError($GLOBALS['LANG']->getLL('pageIDInteger'));
            }
        } else {
            $this->ajaxObj->setError($GLOBALS['LANG']->getLL('noPermission'));
        }
        return $templates;
    }

    protected function getMergedTemplates($pageId, $templateId = 0) {
        $result = array();
        $tsParser = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\TypoScript\\ExtendedTemplateService');
        $tsParser->tt_track = 0;
        $tsParser->init();
        // Gets the rootLine
        $page = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Frontend\\Page\\PageRepository');
        $rootLine = $page->getRootLine($pageId);
        // This generates the constants/config + hierarchy info for the template.
        $tsParser->runThroughTemplates($rootLine);
        // ts-setup & ts-constants of the currently edited template should not be included
        // therefor we have to delete the last template from the stack
        array_pop($tsParser->config);
        array_pop($tsParser->constants);
        $tsParser->linkObjects = TRUE;
        $tsParser->ext_regLinenumbers = FALSE;
        $tsParser->bType = $bType;
        $tsParser->resourceCheck = 1;
        $tsParser->removeFromGetFilePath = PATH_site;
        $tsParser->generateConfig();
        $result = $this->treeWalkCleanup($tsParser->setup);
        return $result;
    }

    private function treeWalkCleanup(array $treeBranch) {
        $cleanedTreeBranch = array();
        foreach ($treeBranch as $key => $value) {
            $dotCount = substr_count($key, '.');
            //type definition or value-assignment
            if ($dotCount == 0) {
                if ($value != '') {
                    if (strlen($value) > 20) {
                        $value = substr($value, 0, 20);
                    }
                    if (!isset($cleanedTreeBranch[$key])) {
                        $cleanedTreeBranch[$key] = array();
                    }
                    $cleanedTreeBranch[$key]['v'] = $value;
                }
            } elseif ($dotCount == 1) {
                // subtree (definition of properties)
                $subBranch = $this->treeWalkCleanup($value);
                if ($subBranch) {
                    $key = str_replace('.', '', $key);
                    if (!isset($cleanedTreeBranch[$key])) {
                        $cleanedTreeBranch[$key] = array();
                    }
                    $cleanedTreeBranch[$key]['c'] = $subBranch;
                }
            }
        }
        return $cleanedTreeBranch;
    }

}