snap2/tk2/editors/TKSnapInteractivateInstructorEditor.php5

<?php

class TKSnapInteractivateInstructorEditor extends TKSnapEditor {
    private $description = '';
    private $placements = array();
    private $preparations = array();

    private function grabResponse() {
        $json = json_decode(utf8_encode($_REQUEST['result']));

        $this->description = $json->description;
        $this->placements = $json->placements;
        $this->preparations = $json->preparations;

        return true;
    }

    protected function showEditor($cm, $failed) {
        if($failed) {
            $this->grabResponse();
        }
        else {
            $this->description = $cm->getDescription();
            $this->placements = $cm->getPlacements();
            $this->preparations = $cm->getPreparations();
        }

        $json = array(
                    'description' => $this->description,
                    'placements' => $this->placements,
                    'preparations' => $this->preparations
                );

        $json = htmlspecialchars(json_encode($json), ENT_NOQUOTES);

        $js = <<<END_JAVASCRIPT
SWAT.use('InteractivateInstructorEditor');

function initializeEditor() {
    var instructor = new Instructor();
    instructor.unserialize($json);
    var editor = new InstructorEditor(instructor);
    $('editorContainer').insert(editor);
}

END_JAVASCRIPT;

        global $prm;
        $prm->setOption('prototype', true);
        $prm->setOption('swatjs', true);
        $prm->loadJS($js);
        $prm->loadJS('initializeEditor()', 'OnLoad');

        $this->addText('<div id="editorContainer"></div>');
    }

    protected function processSave($oldCM) {
        if(!$this->grabResponse())
            return false;

        $cmNew = new SnapContentInteractivateInstructor($this->version);

        $cmNew->setDescription($this->description);
        $cmNew->clearPlacements();
        foreach($this->placements as $plc)
            $cmNew->addPlacement($plc);
        $cmNew->clearPreparations();
        foreach($this->preparations as $prep)
            $cmNew->addPreparation($prep);

        // if there were any basic errors (parse errors with XML, etc.), show these first
        if(count($cmNew->getLoadErrors()) > 0) {
            $this->addText('<p><b>Could not save because of the following errors</b>: <ul><li>'
                                . implode($cmNew->getLoadErrors(), '</li><li>') . '</li></ul></p>');
            return false;
        }

        // force it to generate XML, which may be invalid, triggering errors
        $cmNew->getXML();

        // probably an internal error, but really shouldn't happen
        if(count($cmNew->getError()) > 0) {
            $this->addText('<p><b>Fatal Error</b>: Could not save document: <ul><li>' . implode($cmNew->getError(), '</li><li>')
                            . '</li></ul></p>');
            return false;
        }

        return $cmNew;
    }
}

?>

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