Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/inc/lib/javascript/svgedit/extensions/imagelib/groups.php

152 lines
4.3 KiB

<?php
/* Integrate svg-edit libraries with Chamilo default documents
* @author Juan Carlos Raña Trabado
* @since 25/september/2010
*/
require_once '../../../../../../inc/global.inc.php';
//Add security from Chamilo
api_protect_course_script();
api_block_anonymous_users();
$is_allowed_to_edit = api_is_allowed_to_edit(null, true);
$course_info = api_get_course_info();
$groupId = api_get_group_id();
$group_properties = GroupManager::get_group_properties($groupId);
$groupIid = isset($group_properties['iid']) ? $group_properties['iid'] : 0;
$groupdirpath = $group_properties['directory'];
$group_disk_path = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/document'.$groupdirpath.'/';
$group_web_path = api_get_path(WEB_COURSE_PATH).$course_info['path'].'/document'.$groupdirpath.'/';
//get all group files and folders
$docs_and_folders = DocumentManager::getAllDocumentData(
$course_info,
$groupdirpath,
$groupIid,
null,
$is_allowed_to_edit,
false
);
//get all group filenames
$array_to_search = !empty($docs_and_folders) ? $docs_and_folders : [];
$all_files = [];
if (count($array_to_search) > 0) {
foreach ($array_to_search as $key => $value) {
$all_files[] = basename($array_to_search[$key]['path']);
}
}
//get all svg and png group files
$accepted_extensions = array('.svg', '.png');
$png_svg_files = [];
if (is_array($all_files) && count($all_files) > 0) {
foreach ($all_files as & $file) {
$slideshow_extension = strrchr($file, '.');
$slideshow_extension = strtolower($slideshow_extension);
if (in_array($slideshow_extension, $accepted_extensions)) {
$png_svg_files[] =$file;
}
}
}
$style = '<style>';
$style .= '@import "'.api_get_path(WEB_CSS_PATH).'base.css";';
$style .= '@import "'.api_get_path(WEB_CSS_PATH).'themes/'.api_get_visual_theme().'/default.css";';
$style .='</style>';
?>
<!doctype html>
<?php echo api_get_jquery_js(); ?>
<?php echo $style ?>
<body>
<?php
echo '<h2>'.get_lang('GroupSingle').': '.$group_properties['name'].'</h2>';
if ((
$group_properties['doc_state'] == 2 &&
($is_allowed_to_edit || GroupManager :: is_user_in_group($_user['user_id'], $group_properties))) ||
$group_properties['doc_state'] == 1
){
if (!empty($png_svg_files)) {
echo '<h3>'.get_lang('SelectSVGEditImage').'</h3>';
echo '<ul>';
foreach($png_svg_files as $filename) {
$image = $group_disk_path.$filename;
if (strpos($filename, "svg")){
$new_sizes['width'] = 60;
$new_sizes['height'] = 60;
} else {
$new_sizes = api_resize_image($image, 60, 60);
}
echo '<li style="display:inline; padding:8px;">';
echo '<a href = "'.$group_web_path.$filename.'" alt="'.$filename.'" title="'.$filename.'">';
echo '<img src = "'.$group_web_path.$filename.'" width = "'.$new_sizes['width'].'" height="'.$new_sizes['height'].'" border="0"></a></li>';
}
echo '</ul>';
}
} else {
echo Display::return_message(get_lang('OnlyAccessFromYourGroup'), 'warning');
}
?>
</body>
<script>
$('a').click(function() {
var href = this.href;
// Convert Non-SVG images to data URL first
// (this could also have been done server-side by the library)
if(this.href.indexOf('.svg') === -1) {
var meta_str = JSON.stringify({
name: $(this).text(),
id: href
});
window.top.postMessage(meta_str, "*");
var img = new Image();
img.onload = function() {
var canvas = document.createElement("canvas");
canvas.width = this.width;
canvas.height = this.height;
// load the raster image into the canvas
canvas.getContext("2d").drawImage(this,0,0);
// retrieve the data: URL
try {
var dataurl = canvas.toDataURL();
} catch(err) {
// This fails in Firefox with file:// URLs :(
alert("Data URL conversion failed: " + err);
var dataurl = "";
}
window.top.postMessage('|' + href + '|' + dataurl, "*");
}
img.src = href;
} else {
// Send metadata (also indicates file is about to be sent)
var meta_str = JSON.stringify({
name: $(this).text(),
id: href
});
window.top.postMessage(meta_str, "*");
// Do ajax request for image's href value
$.get(href, function(data) {
data = '|' + href + '|' + data;
// This is where the magic happens!
window.top.postMessage(data, "*");
}, 'html'); // 'html' is necessary to keep returned data as a string
}
return false;
});
</script>