ElementBrowserFramesetController.php

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<?php
namespace TYPO3\CMS\Recordlist\Controller;

use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;

class ElementBrowserFramesetController {

    // Internal, dynamic
    public $content;

    public function main() {
        // Setting GPvars:
        $mode = \TYPO3\CMS\Core\Utility\GeneralUtility::_GP('mode');
        $bparams = \TYPO3\CMS\Core\Utility\GeneralUtility::_GP('bparams');
        $moduleUrl = BackendUtility::getModuleUrl('wizard_element_browser') . '&mode=';
        // Set doktype:
        $GLOBALS['TBE_TEMPLATE']->docType = 'xhtml_frames';
        $GLOBALS['TBE_TEMPLATE']->JScode = $GLOBALS['TBE_TEMPLATE']->wrapScriptTags('
                function closing() {    //
                    close();
                }
                function setParams(mode,params) {   //
                    parent.content.location.href = ' . GeneralUtility::quoteJSvalue($moduleUrl) . '+mode+"&bparams="+params;
                }
                if (!window.opener) {
                    alert("ERROR: Sorry, no link to main window... Closing");
                    close();
                }
        ');
        $this->content .= $GLOBALS['TBE_TEMPLATE']->startPage($GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_core.xlf:TYPO3_Element_Browser'));
        // URL for the inner main frame:
        $url = $GLOBALS['BACK_PATH'] . $moduleUrl . rawurlencode($mode) . '&bparams=' . rawurlencode($bparams);
        // Create the frameset for the window:
        // Formerly there were a ' onunload="closing();"' in the <frameset> tag - but it failed on Safari browser on Mac unless the handler was "onUnload"
        $this->content .= '
            <frameset rows="*,1" framespacing="0" frameborder="0" border="0">
                <frame name="content" src="' . htmlspecialchars($url) . '" marginwidth="0" marginheight="0" frameborder="0" scrolling="auto" noresize="noresize" />
                <frame name="menu" src="' . $GLOBALS['BACK_PATH'] . 'dummy.php" marginwidth="0" marginheight="0" frameborder="0" scrolling="no" noresize="noresize" />
            </frameset>
        ';
        $this->content .= '
</html>';
    }

    public function printContent() {
        echo $this->content;
    }

}