<?php
/* For licensing terms, see /license.txt */

use ChamiloSession as Session;

/**
 *	This file allows creating new svg and png documents with an online editor.
 *
 *	@package chamilo.document
 *
 * @author Juan Carlos Raña Trabado
 * @since 25/september/2010
*/

require_once __DIR__.'/../inc/global.inc.php';

$_SESSION['whereami'] = 'document/createdraw';
$this_section = SECTION_COURSES;
$groupRights = Session::read('group_member_with_upload_rights');
$nameTools = get_lang('Draw');

api_protect_course_script();
api_block_anonymous_users();

$document_data = DocumentManager::get_document_data_by_id($_GET['id'], api_get_course_id(), true);
if (empty($document_data)) {
    if (api_is_in_group()) {
        $group_properties = GroupManager::get_group_properties(api_get_group_id());
        $document_id = DocumentManager::get_document_id(api_get_course_info(), $group_properties['directory']);
        $document_data = DocumentManager::get_document_data_by_id($document_id, api_get_course_id());
    }
}

$document_id = $document_data['id'];
$dir = $document_data['path'];

/*	Constants and variables */

//path for svg-edit save
$_SESSION['draw_dir'] = Security::remove_XSS($dir);
if ($_SESSION['draw_dir'] == '/') {
    $_SESSION['draw_dir'] = '';
}

$dir = isset($dir) ? Security::remove_XSS($dir) : (isset($_POST['dir']) ? Security::remove_XSS($_POST['dir']) : '/');
$is_allowed_to_edit = api_is_allowed_to_edit(null, true);

// Please, do not modify this dirname formatting

if (strstr($dir, '..')) {
	$dir = '/';
}

if ($dir[0] == '.') {
	$dir = substr($dir, 1);
}

if ($dir[0] != '/') {
	$dir = '/'.$dir;
}

if ($dir[strlen($dir) - 1] != '/') {
	$dir .= '/';
}

$filepath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document'.$dir;

if (!is_dir($filepath)) {
	$filepath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document/';
	$dir = '/';
}

$groupId = api_get_group_id();

if (!empty($groupId)) {
	$interbreadcrumb[] = array(
        "url" => "../group/group_space.php?".api_get_cidreq(),
        "name" => get_lang('GroupSpace')
    );
	$noPHP_SELF = true;
	$group = GroupManager :: get_group_properties($groupId);
	$path = explode('/', $dir);
	if ('/'.$path[1] != $group['directory']) {
		api_not_allowed(true);
	}
}

$interbreadcrumb[] = array(
	"url" => "./document.php?".api_get_cidreq(),
	"name" => get_lang('Documents')
);

if (!api_is_allowed_in_course()) {
	api_not_allowed(true);
}

if (!($is_allowed_to_edit || $groupRights ||
	DocumentManager::is_my_shared_folder(
		api_get_user_id(),
		Security::remove_XSS($dir),
		api_get_session_id()))
) {
	api_not_allowed(true);
}


/*	Header */
Event::event_access_tool(TOOL_DOCUMENT);
$display_dir = $dir;
if (isset ($group)) {
	$display_dir = explode('/', $dir);
	unset($display_dir[0]);
	unset($display_dir[1]);
	$display_dir = implode('/', $display_dir);
}

// Interbreadcrumb for the current directory root path
// Copied from document.php
$dir_array = explode('/', $dir);
$array_len = count($dir_array);

// Interbreadcrumb for the current directory root path
if (empty($document_data['parents'])) {
    $interbreadcrumb[] = array('url' => '#', 'name' => $document_data['title']);
} else {
    foreach ($document_data['parents'] as $document_sub_data) {
        $interbreadcrumb[] = array(
			'url' => $document_sub_data['document_url'],
			'name' => $document_sub_data['title']
		);
    }
}
Display :: display_header($nameTools, 'Doc');

echo '<div class="actions">';
echo '<a href="document.php?id='.$document_id.'">'.
    Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('DocumentsOverview'), '', ICON_SIZE_MEDIUM).'</a>';
echo '</div>';

if (api_browser_support('svg')) {

	//automatic loading the course language
	$svgedit_code_translation_table = array('' => 'en', 'pt' => 'pt-Pt', 'sr' => 'sr_latn');
	$langsvgedit = api_get_language_isocode();
	$langsvgedit = isset($svgedit_code_translation_table[$langsvgedit]) ? $svgedit_code_translation_table[$langsvgedit] : $langsvgedit;
	$langsvgedit = file_exists(api_get_path(LIBRARY_PATH).'javascript/svgedit/locale/lang.'.$langsvgedit.'.js') ? $langsvgedit : 'en';
	$svg_url = api_get_path(WEB_LIBRARY_PATH).'javascript/svgedit/svg-editor.php?lang='.$langsvgedit;
	?>
	<script>
		document.write ('<iframe id="frame" frameborder="0" scrolling="no" src="<?php echo  $svg_url; ?>" width="100%" height="100%"><noframes><p>Sorry, your browser does not handle frames</p></noframes></iframe>');
        function resizeIframe() {
            var height = window.innerHeight -50;
            //max lower size
            if (height<550) {
                height=550;
            }
            document.getElementById('frame').style.height = height +"px";
        }
	document.getElementById('frame').onload = resizeIframe;
	window.onresize = resizeIframe;

	</script>

    <?php
    echo '<noscript>';
	echo '<iframe style="height: 550px; width: 100%;" scrolling="no" frameborder="0" src="'.$svg_url.'"><noframes><p>Sorry, your browser does not handle frames</p></noframes></iframe>';
	echo '</noscript>';
} else {
	Display::display_error_message(get_lang('BrowserDontSupportsSVG'));
}

Display :: display_footer();