Browse Source

Feature #2746 - Cleaning whitespace within a file for making some further changes.

Ivan Tcholakov 14 years ago
parent
commit
403d05088d
1 changed files with 847 additions and 847 deletions
  1. 847 847
      main/inc/lib/course_home.lib.php

+ 847 - 847
main/inc/lib/course_home.lib.php

@@ -5,871 +5,871 @@ require_once api_get_path(SYS_CODE_PATH).'newscorm/learnpath.class.php';
 
 class CourseHome {
 
-	/**
-	 * Gets the html content to show in the 3 column view
-	 */
-	public static function show_tool_3column($cat) {
-		if (!class_exists('HTML_Table')) {
-			require_once 'pear/HTML/Table.php';
-		}
-		global $_user;
-		$charset = api_get_system_encoding();
-		$TBL_ACCUEIL = Database :: get_course_table(TABLE_TOOL_LIST);
-		$TABLE_TOOLS = Database :: get_main_table(TABLE_MAIN_COURSE_MODULE);
-
-		$numcols = 3;
-		$table = new HTML_Table('width="100%"');
-		$all_tools = array();
-		switch ($cat) {
-
-			case 'Basic' :
-				$condition_display_tools = ' WHERE a.link=t.link AND t.position="basic" ';
-				if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
-					$condition_display_tools = ' WHERE a.link=t.link AND (t.position="basic" OR a.name = "'.TOOL_TRACKING.'") ';
-				}
-
-				$sql = "SELECT a.*, t.image img, t.row, t.column  FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
-						$condition_display_tools ORDER BY t.row, t.column";
-				break;
-
-			case 'External' :
-				if (api_is_allowed_to_edit()) {
-					$sql = "SELECT a.*, t.image img FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
-							WHERE (a.link=t.link AND t.position='external')
-							OR (a.visibility <= 1 AND (a.image = 'external.gif' OR a.image = 'scormbuilder.gif' OR t.image = 'blog.gif') AND a.image=t.image)
-							ORDER BY a.id";
-				} else {
-					$sql = "SELECT a.*, t.image img FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
-							WHERE a.visibility = 1 AND ((a.link=t.link AND t.position='external')
-							OR ((a.image = 'external.gif' OR a.image = 'scormbuilder.gif' OR t.image = 'blog.gif') AND a.image=t.image))
-							ORDER BY a.id";
-				}
-				break;
-
-			case 'courseAdmin' :
-				$sql = "SELECT a.*, t.image img, t.row, t.column  FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
-						WHERE admin=1 AND a.link=t.link ORDER BY t.row, t.column";
-				break;
-
-			case 'platformAdmin' :
-				$sql = "SELECT *, image img FROM $TBL_ACCUEIL WHERE visibility = 2 ORDER BY id";
-		}
-		$result = Database::query($sql);
-
-		// Grabbing all the tools from $course_tool_table
-		while ($tool = Database::fetch_array($result)) {
-			$all_tools[] = $tool;
-		}
-
-		// Grabbing all the links that have the property on_homepage set to 1
-		if ($cat == 'External') {
-			$tbl_link = Database :: get_course_table(TABLE_LINK);
-			$tbl_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY);
-			if (api_is_allowed_to_edit(null, true)) {
-				$sql_links = "SELECT tl.*, tip.visibility
-									FROM $tbl_link tl
-									LEFT JOIN $tbl_item_property tip ON tip.tool='link' AND tip.ref=tl.id
-									WHERE tl.on_homepage='1' AND tip.visibility != 2";
-			} else {
-				$sql_links = "SELECT tl.*, tip.visibility
-									FROM $tbl_link tl
-									LEFT JOIN $tbl_item_property tip ON tip.tool='link' AND tip.ref=tl.id
-									WHERE tl.on_homepage='1' AND tip.visibility = 1";
-			}
-			$result_links = Database::query($sql_links);
-			while ($links_row = Database::fetch_array($result_links)) {
-				$properties = array();
-				$properties['name'] = $links_row['title'];
-				$properties['link'] = $links_row['url'];
-				$properties['visibility'] = $links_row['visibility'];
-				$properties['img'] = 'external.gif';
-				$properties['adminlink'] = api_get_path(WEB_CODE_PATH).'link/link.php?action=editlink&amp;id='.$links_row['id'];
-				$all_tools[] = $properties;
-			}
-		}
-
-		$cell_number = 0;
-		// Draw line between basic and external, only if there are entries in External
-		if ($cat == 'External' && count($all_tools)) {
-			$table->setCellContents(0, 0, '<hr noshade="noshade" size="1"/>');
-			$table->updateCellAttributes(0, 0, 'colspan="3"');
-			$cell_number += $numcols;
-		}
-
-		foreach ($all_tools as & $tool) {
-
-			if ($tool['image'] == 'scormbuilder.gif') {
-				// display links to lp only for current session
-				if (api_get_session_id() != $tool['session_id']) {
-					continue;
-				}
-				// check if the published learnpath is visible for student
-				$published_lp_id = self::get_published_lp_id_from_link($tool['link']);
-			    if (!api_is_allowed_to_edit(null, true) && !learnpath::is_lp_visible_for_student($published_lp_id,api_get_user_id())) {
-			    	continue;
-			    }
-			}
-
-			if (api_get_session_id() != 0 && in_array($tool['name'], array('course_maintenance', 'course_setting'))) {
-				continue;
-			}
-
-			$cell_content = '';
-			// The name of the tool
-			$tool_name = self::translate_tool_name($tool);
-
-			$link_annex = '';
-			// The url of the tool
-			if ($tool['img'] != 'external.gif') {
-				$tool['link'] = api_get_path(WEB_CODE_PATH).$tool['link'];
-				$qm_or_amp = strpos($tool['link'], '?') === false ? '?' : '&amp;';
-				$link_annex = $qm_or_amp.api_get_cidreq();
-			} else {
-				// If an external link ends with 'login=', add the actual login...
-				$pos = strpos($tool['link'], '?login=');
-				$pos2 = strpos($tool['link'], '&amp;login=');
-				if ($pos !== false or $pos2 !== false) {
-					$link_annex = $_user['username'];
-				}
-			}
-
-			// Setting the actual image url
-			$tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img'];
-
-			// VISIBLE
-			if (($tool['visibility'] || ((api_is_coach() || api_is_course_tutor()) && $tool['name'] == TOOL_TRACKING)) || $cat == 'courseAdmin' || $cat == 'platformAdmin') {
-				if (strpos($tool['name'], 'visio_') !== false) {
-					$cell_content .= '<a  href="javascript: void(0);" onclick="javascript: window.open(\'' . $tool['link'].$link_annex . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '"><img src="'.$tool['img'].'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>';
-				} elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
-					$cell_content .= '<a href="javascript: void(0);" onclick="javascript: window.open(\'' .$tool['link'].$link_annex. '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '"><img src="'.$tool['img'].'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n"; // don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
-				} else {
-					$cell_content .= '<a href="'.$tool['link'].$link_annex.'" target="'.$tool['target'].'"><img src="'.$tool['img'].'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n"; // don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
-				}
-			}
-			// INVISIBLE
-			else {
-				if (api_is_allowed_to_edit(null, true)) {
-					if (strpos($tool['name'], 'visio_') !== false) {
-						$cell_content .= '<a  href="javascript: void(0);" onclick="window.open(\'' . $tool['link'].$link_annex . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '"><img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n";
-					} elseif (strpos($tool['name'],'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
-						$cell_content .= '<a href="javascript: void(0);" onclick="javascript: window.open(\'' .$tool['link'].$link_annex. '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '" class="invisible"><img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n"; // don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
-					} else {
-						$cell_content .= '<a href="'.$tool['link'].$link_annex.'" target="'.$tool['target'].'" class="invisible"><img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n";// don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
-					}
-				} else {
-					$cell_content .= '<img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'; // don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
-					$cell_content .= '<span class="invisible">'.$tool_name.'</span>';
-				}
-			}
-
-			$lnk = array();
-			if (api_is_allowed_to_edit(null, true) && $cat != "courseAdmin" && !strpos($tool['link'], 'learnpath_handler.php?learnpath_id') && !api_is_coach()) {
-				if ($tool['visibility']) {
-					$link['name'] = Display::return_icon('remove.gif', get_lang('Deactivate'), array('style' => 'vertical-align: middle;'));
-					$link['cmd'] = "hide=yes";
-					$lnk[] = $link;
-				} else {
-					$link['name'] = Display::return_icon('add.gif', get_lang('Activate'), array('style' => 'vertical-align: middle;'));
-					$link['cmd'] = "restore=yes";
-					$lnk[] = $link;
-
-					/*if ($tool['img'] == api_get_path(WEB_IMG_PATH).'external.gif') {
-						$link['name'] = get_lang('Remove');
-						$link['cmd']  = 'remove=yes';
-						if ($tool['visibility'] == 2 && $cat == 'platformAdmin') {
-							$link['name'] = get_lang('Delete');
-							$link['cmd'] = 'askDelete=yes';
-							$lnk[] = $link;
-						}
-					}*/
-				}
-				//echo "<div class=courseadmin>";
-				if (is_array($lnk)) {
-					foreach ($lnk as & $this_lnk) {
-						if ($tool['adminlink']) {
-							$cell_content .= '<a href="'.$properties['adminlink'].'">'.Display::return_icon('edit.gif', get_lang('Edit')).'</a>';
-						} else {
-							$cell_content .= '<a href="'.api_get_self().'?id='.$tool['id'].'&amp;'.$this_lnk['cmd'].'">'.$this_lnk['name'].'</a>';
-						}
-					}
-				}
-
-				// RH: Allow editing of invisible homepage links (modified external_module)
-				if ($tool['added_tool'] == 1 && api_is_allowed_to_edit() && !$tool['visibility']
-						&& $tool['image'] != 'scormbuilder.gif' && $tool['image'] != 'scormbuilder_na.gif') {
-					$cell_content .= '<a class="nobold" href="'.api_get_path(WEB_CODE_PATH).'external_module/external_module.php?id='.$tool['id'].'">'.get_lang('Edit').'</a>';
-				}
-			}
-			$table->setCellContents($cell_number / $numcols, ($cell_number) % $numcols, $cell_content);
-			$table->updateCellAttributes($cell_number / $numcols, ($cell_number) % $numcols, 'width="32%" height="42"');
-			$cell_number ++;
-		}
-		$table->display();
-	} // end function showtools2($cat)
-
-	/**
-	 * Displays the tools of a certain category.
-	 *
-	 * @return void
-	 * @param string $course_tool_category	contains the category of tools to display:
-	 * "Public", "PublicButHide", "courseAdmin", "claroAdmin"
-	 */
-	function show_tool_2column($course_tool_category) {
-		$charset = api_get_system_encoding();
-		$web_code_path = api_get_path(WEB_CODE_PATH);
-		$course_tool_table = Database::get_course_table(TABLE_TOOL_LIST);
-
-		switch ($course_tool_category) {
-
-			case TOOL_PUBLIC:
-
-					$condition_display_tools = ' WHERE visibility = 1 ';
-					if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
-						$condition_display_tools = ' WHERE visibility = 1 OR (visibility = 0 AND name = "'.TOOL_TRACKING.'") ';
-					}
-
-					$result = Database::query("SELECT * FROM $course_tool_table $condition_display_tools ORDER BY id");
-					$col_link ="##003399";
-					break;
-
-			case TOOL_PUBLIC_BUT_HIDDEN:
-
-					$result = Database::query("SELECT * FROM $course_tool_table WHERE visibility=0 AND admin=0 ORDER BY id");
-					$col_link ="##808080";
-					break;
-
-			case TOOL_COURSE_ADMIN:
-
-					$result = Database::query("SELECT * FROM $course_tool_table WHERE admin=1 AND visibility != 2 ORDER BY id");
-					$col_link ="##003399";
-					break;
-
-			case TOOL_PLATFORM_ADMIN:
-
-					$result = Database::query("SELECT * FROM $course_tool_table WHERE visibility = 2 ORDER BY id");
-					$col_link ="##003399";
-		}
-
-		$i = 0;
-
-		// Grabbing all the tools from $course_tool_table
-		while ($temp_row = Database::fetch_array($result)) {
-			if ($course_tool_category == TOOL_PUBLIC_BUT_HIDDEN && $temp_row['image'] != 'scormbuilder.gif') {
-				$temp_row['image'] = str_replace('.gif', '_na.gif', $temp_row['image']);
-			}
-			$all_tools_list[] = $temp_row;
-		}
-
-		// Grabbing all the links that have the property on_homepage set to 1
-		$course_link_table = Database::get_course_table(TABLE_LINK);
-		$course_item_property_table = Database::get_course_table(TABLE_ITEM_PROPERTY);
-		switch ($course_tool_category)  {
-			case TOOL_PUBLIC:
-				$sql_links="SELECT tl.*, tip.visibility
-						FROM $course_link_table tl
-						LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
-						WHERE tl.on_homepage='1' AND tip.visibility = 1";
-				break;
-			case TOOL_PUBLIC_BUT_HIDDEN:
-				$sql_links="SELECT tl.*, tip.visibility
-					FROM $course_link_table tl
-					LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
-					WHERE tl.on_homepage='1' AND tip.visibility = 0";
-				break;
-			default:
-				$sql_links = null;
-				break;
-		}
-		if ($sql_links != null) {
-			$properties = array();
-			$result_links = Database::query($sql_links);
-			while ($links_row = Database::fetch_array($result_links)) {
-				unset($properties);
-				$properties['name'] = $links_row['title'];
-				$properties['link'] = $links_row['url'];
-				$properties['visibility'] = $links_row['visibility'];
-				$properties['image'] = $course_tool_category == TOOL_PUBLIC_BUT_HIDDEN ? 'external_na.gif' : 'external.gif';
-				$properties['adminlink'] = api_get_path(WEB_CODE_PATH).'link/link.php?action=editlink&id='.$links_row['id'];
-				$all_tools_list[] = $properties;
-			}
-		}
-
-		if (isset($all_tools_list)) {
-			$lnk = array();
-			foreach ($all_tools_list as & $tool) {
-
-				if ($tool['image'] == 'scormbuilder.gif') {
-					// display links to lp only for current session
-					if (api_get_session_id() != $tool['session_id']) {
-						continue;
-					}
-					// check if the published learnpath is visible for student
-					$published_lp_id = self::get_published_lp_id_from_link($tool['link']);
-				    if (!api_is_allowed_to_edit(null, true) && !learnpath::is_lp_visible_for_student($published_lp_id,api_get_user_id())) {
-				    	continue;
-				    }
-				}
-
-				if (api_get_session_id() != 0 && in_array($tool['name'], array('course_maintenance', 'course_setting'))) {
-					continue;
-				}
-
-				if (!($i % 2)) {
-					echo "<tr valign=\"top\">\n";
-				}
-
-				// NOTE : Table contains only the image file name, not full path
-				if (stripos($tool['link'], 'http://') === false && stripos($tool['link'], 'https://') === false && stripos($tool['link'], 'ftp://') === false) {
-					$tool['link'] = $web_code_path.$tool['link'];
-				}
-				if ($course_tool_category == TOOL_PUBLIC_BUT_HIDDEN) {
-				    $class = 'class="invisible"';
-				}
-				$qm_or_amp = strpos($tool['link'], '?') === false ? '?' : '&amp;';
-
-				$tool['link'] = $tool['link'];
-				echo '<td width="50%" height="30">';
-
-				if (strpos($tool['name'], 'visio_') !== false) {
-					echo '<a  '.$class.' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']).(($tool['image'] == 'external.gif' || $tool['image'] == 'external_na.gif') ? '' : $qm_or_amp.api_get_cidreq()) . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
-				} elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
-					echo '<a href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']).$qm_or_amp.api_get_cidreq() . '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '"'.$class.'>';
-				} else {
-					echo '<a href="'. htmlspecialchars($tool['link']).(($tool['image'] == 'external.gif' || $tool['image'] == 'external_na.gif') ? '' : $qm_or_amp.api_get_cidreq()).'" target="' , $tool['target'], '" '.$class.'>';
-				}
-
-				$tool_name = self::translate_tool_name($tool);
-				echo Display::return_icon($tool['image'], $tool_name),'&nbsp;', $tool_name,'</a>';
-
-				// This part displays the links to hide or remove a tool.
-				// These links are only visible by the course manager.
-				unset($lnk);
-				if (api_is_allowed_to_edit(null, true) && !api_is_coach()) {
-
-					if ($tool['visibility'] == '1' || $tool['name'] == TOOL_TRACKING) {
-						$link['name'] = Display::return_icon('remove.gif', get_lang('Deactivate'));
-						$link['cmd'] = 'hide=yes';
-						$lnk[] = $link;
-					}
-
-					if ($course_tool_category == TOOL_PUBLIC_BUT_HIDDEN) {
-						$link['name'] = Display::return_icon('add.gif', get_lang('Activate'));
-						$link['cmd']  = 'restore=yes';
-						$lnk[] = $link;
-
-						if ($tool['added_tool'] == 1) {
-							$link['name'] = Display::return_icon('delete.gif', get_lang('Remove'));
-							$link['cmd']  = 'remove=yes';
-							$lnk[] = $link;
-						}
-					}
-					if ($tool['adminlink']) {
-						echo '<a href="'.$tool['adminlink'].'">'.Display::return_icon('edit.gif', get_lang('Edit')).'</a>';
-					}
-
-				}
-				if (api_is_platform_admin() && !api_is_coach()) {
-					if ($tool['visibility'] == 2) {
-						$link['name'] = Display::return_icon('undelete.gif', get_lang('Activate'));
-
-						$link['cmd']  = 'hide=yes';
-						$lnk[] = $link;
-
-						if ($tool['added_tool'] == 1) {
-							$link['name'] = get_lang('Delete');
-							$link['cmd'] = 'askDelete=yes';
-							$lnk[] = $link;
-						}
-					}
-					if ($tool['visibility'] == 0  && $tool['added_tool'] == 0) {
-						$link['name'] = Display::return_icon('delete.gif', get_lang('Remove'));
-						$link['cmd'] = 'remove=yes';
-						$lnk[] = $link;
-					}
-				}
-				if (is_array($lnk)) {
-					foreach ($lnk as & $this_link) {
-						if (!$tool['adminlink']) {
-							echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;id='.$tool['id'].'&amp;'.$this_link['cmd'].'">'.$this_link['name'].'</a>';
-						}
-					}
-				}
-
-				// Allow editing of invisible homepage links (modified external_module)
-				if ($tool['added_tool'] == 1 && api_is_allowed_to_edit(null, true) && !$tool['visibility']
-						&& $tool['image'] != 'scormbuilder.gif' && $tool['image'] != 'scormbuilder_na.gif') {
-					echo '<a class="nobold" href="'.api_get_path(WEB_CODE_PATH).'external_module/external_module.php?'.api_get_cidreq().'&amp;id='.$tool['id'].'">'.get_lang('Edit').'</a>';
-				}
-				echo "</td>\n";
-
-				if ($i % 2) {
-					echo "</tr>\n";
-				}
-
-				$i++;
-			}
-		}
-
-		if ($i % 2) {
-			echo "<td width=\"50%\">&nbsp;</td>\n", "</tr>\n";
-		}
-	}
-
-	/**
-	 * Gets the tools of a certain category. Returns an array expected
-	 * by show_tools_category()
-	 * @param string $course_tool_category	contains the category of tools to
-	 * display: "toolauthoring", "toolinteraction", "tooladmin", "tooladminplatform", "toolplugin"
-	 * @return array
-	 */
-
-	public static function get_tools_category($course_tool_category) {
-		global $_user;
-		$web_code_path = api_get_path(WEB_CODE_PATH);
-		$course_tool_table = Database::get_course_table(TABLE_TOOL_LIST);
-		$is_allowed_to_edit = api_is_allowed_to_edit(null, true);
-		$is_platform_admin = api_is_platform_admin();
-		$all_tools_list = array();
-
-		// Condition for the session
-		$session_id = api_get_session_id();
-		$condition_session = api_get_session_condition($session_id, true, true);
-
-		switch ($course_tool_category) {
-			case TOOL_STUDENT_VIEW:
-					$condition_display_tools = ' WHERE visibility = 1 AND (category = "authoring" OR category = "interaction" OR category = "plugin") ';
-					if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
-						$condition_display_tools = ' WHERE (visibility = 1 AND (category = "authoring" OR category = "interaction" OR category = "plugin") OR (name = "'.TOOL_TRACKING.'") )   ';
-					}
-					$sql = "SELECT * FROM $course_tool_table  $condition_display_tools $condition_session ORDER BY id";
-					$result = Database::query($sql);
-					$col_link ="##003399";
-					break;
-			case TOOL_AUTHORING:
-					$sql = "SELECT * FROM $course_tool_table WHERE category = 'authoring' $condition_session ORDER BY id";
-					$result = Database::query($sql);
-					$col_link ="##003399";
-					break;
-			case TOOL_INTERACTION:
-					$sql = "SELECT * FROM $course_tool_table WHERE category = 'interaction' $condition_session ORDER BY id";
-					$result = Database::query($sql);
-					$col_link ="##003399";
-					break;
-			case TOOL_ADMIN_VISIBLE:
-					$sql = "SELECT * FROM $course_tool_table WHERE category = 'admin' AND visibility ='1' $condition_session ORDER BY id";
-					$result = Database::query($sql);
-					$col_link ="##003399";
-					break;
-			case TOOL_ADMIN_PLATEFORM:
-					$sql = "SELECT * FROM $course_tool_table WHERE category = 'admin' $condition_session ORDER BY id";
-					$result = Database::query($sql);
-					$col_link ="##003399";
-					break;
-			case TOOL_COURSE_PLUGIN:
-					//Other queries recover id, name, link, image, visibility, admin, address, added_tool, target, category and session_id
-					// but plugins are not present in the tool table, only globally and inside the course_settings table once configured 
-					$sql = "SELECT * FROM $course_tool_table WHERE category = 'plugin' $condition_session ORDER BY id";
-					$result = Database::query($sql);
-					break;
-		}
+    /**
+     * Gets the html content to show in the 3 column view
+     */
+    public static function show_tool_3column($cat) {
+        if (!class_exists('HTML_Table')) {
+            require_once 'pear/HTML/Table.php';
+        }
+        global $_user;
+        $charset = api_get_system_encoding();
+        $TBL_ACCUEIL = Database :: get_course_table(TABLE_TOOL_LIST);
+        $TABLE_TOOLS = Database :: get_main_table(TABLE_MAIN_COURSE_MODULE);
+
+        $numcols = 3;
+        $table = new HTML_Table('width="100%"');
+        $all_tools = array();
+        switch ($cat) {
+
+            case 'Basic' :
+                $condition_display_tools = ' WHERE a.link=t.link AND t.position="basic" ';
+                if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
+                    $condition_display_tools = ' WHERE a.link=t.link AND (t.position="basic" OR a.name = "'.TOOL_TRACKING.'") ';
+                }
+
+                $sql = "SELECT a.*, t.image img, t.row, t.column  FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
+                        $condition_display_tools ORDER BY t.row, t.column";
+                break;
+
+            case 'External' :
+                if (api_is_allowed_to_edit()) {
+                    $sql = "SELECT a.*, t.image img FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
+                            WHERE (a.link=t.link AND t.position='external')
+                            OR (a.visibility <= 1 AND (a.image = 'external.gif' OR a.image = 'scormbuilder.gif' OR t.image = 'blog.gif') AND a.image=t.image)
+                            ORDER BY a.id";
+                } else {
+                    $sql = "SELECT a.*, t.image img FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
+                            WHERE a.visibility = 1 AND ((a.link=t.link AND t.position='external')
+                            OR ((a.image = 'external.gif' OR a.image = 'scormbuilder.gif' OR t.image = 'blog.gif') AND a.image=t.image))
+                            ORDER BY a.id";
+                }
+                break;
+
+            case 'courseAdmin' :
+                $sql = "SELECT a.*, t.image img, t.row, t.column  FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
+                        WHERE admin=1 AND a.link=t.link ORDER BY t.row, t.column";
+                break;
+
+            case 'platformAdmin' :
+                $sql = "SELECT *, image img FROM $TBL_ACCUEIL WHERE visibility = 2 ORDER BY id";
+        }
+        $result = Database::query($sql);
+
+        // Grabbing all the tools from $course_tool_table
+        while ($tool = Database::fetch_array($result)) {
+            $all_tools[] = $tool;
+        }
+
+        // Grabbing all the links that have the property on_homepage set to 1
+        if ($cat == 'External') {
+            $tbl_link = Database :: get_course_table(TABLE_LINK);
+            $tbl_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY);
+            if (api_is_allowed_to_edit(null, true)) {
+                $sql_links = "SELECT tl.*, tip.visibility
+                                    FROM $tbl_link tl
+                                    LEFT JOIN $tbl_item_property tip ON tip.tool='link' AND tip.ref=tl.id
+                                    WHERE tl.on_homepage='1' AND tip.visibility != 2";
+            } else {
+                $sql_links = "SELECT tl.*, tip.visibility
+                                    FROM $tbl_link tl
+                                    LEFT JOIN $tbl_item_property tip ON tip.tool='link' AND tip.ref=tl.id
+                                    WHERE tl.on_homepage='1' AND tip.visibility = 1";
+            }
+            $result_links = Database::query($sql_links);
+            while ($links_row = Database::fetch_array($result_links)) {
+                $properties = array();
+                $properties['name'] = $links_row['title'];
+                $properties['link'] = $links_row['url'];
+                $properties['visibility'] = $links_row['visibility'];
+                $properties['img'] = 'external.gif';
+                $properties['adminlink'] = api_get_path(WEB_CODE_PATH).'link/link.php?action=editlink&amp;id='.$links_row['id'];
+                $all_tools[] = $properties;
+            }
+        }
+
+        $cell_number = 0;
+        // Draw line between basic and external, only if there are entries in External
+        if ($cat == 'External' && count($all_tools)) {
+            $table->setCellContents(0, 0, '<hr noshade="noshade" size="1"/>');
+            $table->updateCellAttributes(0, 0, 'colspan="3"');
+            $cell_number += $numcols;
+        }
+
+        foreach ($all_tools as & $tool) {
+
+            if ($tool['image'] == 'scormbuilder.gif') {
+                // display links to lp only for current session
+                if (api_get_session_id() != $tool['session_id']) {
+                    continue;
+                }
+                // check if the published learnpath is visible for student
+                $published_lp_id = self::get_published_lp_id_from_link($tool['link']);
+                if (!api_is_allowed_to_edit(null, true) && !learnpath::is_lp_visible_for_student($published_lp_id,api_get_user_id())) {
+                    continue;
+                }
+            }
+
+            if (api_get_session_id() != 0 && in_array($tool['name'], array('course_maintenance', 'course_setting'))) {
+                continue;
+            }
+
+            $cell_content = '';
+            // The name of the tool
+            $tool_name = self::translate_tool_name($tool);
+
+            $link_annex = '';
+            // The url of the tool
+            if ($tool['img'] != 'external.gif') {
+                $tool['link'] = api_get_path(WEB_CODE_PATH).$tool['link'];
+                $qm_or_amp = strpos($tool['link'], '?') === false ? '?' : '&amp;';
+                $link_annex = $qm_or_amp.api_get_cidreq();
+            } else {
+                // If an external link ends with 'login=', add the actual login...
+                $pos = strpos($tool['link'], '?login=');
+                $pos2 = strpos($tool['link'], '&amp;login=');
+                if ($pos !== false or $pos2 !== false) {
+                    $link_annex = $_user['username'];
+                }
+            }
+
+            // Setting the actual image url
+            $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img'];
+
+            // VISIBLE
+            if (($tool['visibility'] || ((api_is_coach() || api_is_course_tutor()) && $tool['name'] == TOOL_TRACKING)) || $cat == 'courseAdmin' || $cat == 'platformAdmin') {
+                if (strpos($tool['name'], 'visio_') !== false) {
+                    $cell_content .= '<a  href="javascript: void(0);" onclick="javascript: window.open(\'' . $tool['link'].$link_annex . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '"><img src="'.$tool['img'].'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>';
+                } elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
+                    $cell_content .= '<a href="javascript: void(0);" onclick="javascript: window.open(\'' .$tool['link'].$link_annex. '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '"><img src="'.$tool['img'].'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n"; // don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
+                } else {
+                    $cell_content .= '<a href="'.$tool['link'].$link_annex.'" target="'.$tool['target'].'"><img src="'.$tool['img'].'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n"; // don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
+                }
+            }
+            // INVISIBLE
+            else {
+                if (api_is_allowed_to_edit(null, true)) {
+                    if (strpos($tool['name'], 'visio_') !== false) {
+                        $cell_content .= '<a  href="javascript: void(0);" onclick="window.open(\'' . $tool['link'].$link_annex . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '"><img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n";
+                    } elseif (strpos($tool['name'],'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
+                        $cell_content .= '<a href="javascript: void(0);" onclick="javascript: window.open(\'' .$tool['link'].$link_annex. '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '" class="invisible"><img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n"; // don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
+                    } else {
+                        $cell_content .= '<a href="'.$tool['link'].$link_annex.'" target="'.$tool['target'].'" class="invisible"><img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>'."\n";// don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
+                    }
+                } else {
+                    $cell_content .= '<img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'; // don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
+                    $cell_content .= '<span class="invisible">'.$tool_name.'</span>';
+                }
+            }
+
+            $lnk = array();
+            if (api_is_allowed_to_edit(null, true) && $cat != "courseAdmin" && !strpos($tool['link'], 'learnpath_handler.php?learnpath_id') && !api_is_coach()) {
+                if ($tool['visibility']) {
+                    $link['name'] = Display::return_icon('remove.gif', get_lang('Deactivate'), array('style' => 'vertical-align: middle;'));
+                    $link['cmd'] = "hide=yes";
+                    $lnk[] = $link;
+                } else {
+                    $link['name'] = Display::return_icon('add.gif', get_lang('Activate'), array('style' => 'vertical-align: middle;'));
+                    $link['cmd'] = "restore=yes";
+                    $lnk[] = $link;
+
+                    /*if ($tool['img'] == api_get_path(WEB_IMG_PATH).'external.gif') {
+                        $link['name'] = get_lang('Remove');
+                        $link['cmd']  = 'remove=yes';
+                        if ($tool['visibility'] == 2 && $cat == 'platformAdmin') {
+                            $link['name'] = get_lang('Delete');
+                            $link['cmd'] = 'askDelete=yes';
+                            $lnk[] = $link;
+                        }
+                    }*/
+                }
+                //echo "<div class=courseadmin>";
+                if (is_array($lnk)) {
+                    foreach ($lnk as & $this_lnk) {
+                        if ($tool['adminlink']) {
+                            $cell_content .= '<a href="'.$properties['adminlink'].'">'.Display::return_icon('edit.gif', get_lang('Edit')).'</a>';
+                        } else {
+                            $cell_content .= '<a href="'.api_get_self().'?id='.$tool['id'].'&amp;'.$this_lnk['cmd'].'">'.$this_lnk['name'].'</a>';
+                        }
+                    }
+                }
+
+                // RH: Allow editing of invisible homepage links (modified external_module)
+                if ($tool['added_tool'] == 1 && api_is_allowed_to_edit() && !$tool['visibility']
+                        && $tool['image'] != 'scormbuilder.gif' && $tool['image'] != 'scormbuilder_na.gif') {
+                    $cell_content .= '<a class="nobold" href="'.api_get_path(WEB_CODE_PATH).'external_module/external_module.php?id='.$tool['id'].'">'.get_lang('Edit').'</a>';
+                }
+            }
+            $table->setCellContents($cell_number / $numcols, ($cell_number) % $numcols, $cell_content);
+            $table->updateCellAttributes($cell_number / $numcols, ($cell_number) % $numcols, 'width="32%" height="42"');
+            $cell_number ++;
+        }
+        $table->display();
+    } // end function showtools2($cat)
+
+    /**
+     * Displays the tools of a certain category.
+     *
+     * @return void
+     * @param string $course_tool_category	contains the category of tools to display:
+     * "Public", "PublicButHide", "courseAdmin", "claroAdmin"
+     */
+    function show_tool_2column($course_tool_category) {
+        $charset = api_get_system_encoding();
+        $web_code_path = api_get_path(WEB_CODE_PATH);
+        $course_tool_table = Database::get_course_table(TABLE_TOOL_LIST);
+
+        switch ($course_tool_category) {
+
+            case TOOL_PUBLIC:
+
+                    $condition_display_tools = ' WHERE visibility = 1 ';
+                    if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
+                        $condition_display_tools = ' WHERE visibility = 1 OR (visibility = 0 AND name = "'.TOOL_TRACKING.'") ';
+                    }
+
+                    $result = Database::query("SELECT * FROM $course_tool_table $condition_display_tools ORDER BY id");
+                    $col_link ="##003399";
+                    break;
+
+            case TOOL_PUBLIC_BUT_HIDDEN:
+
+                    $result = Database::query("SELECT * FROM $course_tool_table WHERE visibility=0 AND admin=0 ORDER BY id");
+                    $col_link ="##808080";
+                    break;
+
+            case TOOL_COURSE_ADMIN:
+
+                    $result = Database::query("SELECT * FROM $course_tool_table WHERE admin=1 AND visibility != 2 ORDER BY id");
+                    $col_link ="##003399";
+                    break;
+
+            case TOOL_PLATFORM_ADMIN:
+
+                    $result = Database::query("SELECT * FROM $course_tool_table WHERE visibility = 2 ORDER BY id");
+                    $col_link ="##003399";
+        }
+
+        $i = 0;
+
+        // Grabbing all the tools from $course_tool_table
+        while ($temp_row = Database::fetch_array($result)) {
+            if ($course_tool_category == TOOL_PUBLIC_BUT_HIDDEN && $temp_row['image'] != 'scormbuilder.gif') {
+                $temp_row['image'] = str_replace('.gif', '_na.gif', $temp_row['image']);
+            }
+            $all_tools_list[] = $temp_row;
+        }
+
+        // Grabbing all the links that have the property on_homepage set to 1
+        $course_link_table = Database::get_course_table(TABLE_LINK);
+        $course_item_property_table = Database::get_course_table(TABLE_ITEM_PROPERTY);
+        switch ($course_tool_category)  {
+            case TOOL_PUBLIC:
+                $sql_links="SELECT tl.*, tip.visibility
+                        FROM $course_link_table tl
+                        LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
+                        WHERE tl.on_homepage='1' AND tip.visibility = 1";
+                break;
+            case TOOL_PUBLIC_BUT_HIDDEN:
+                $sql_links="SELECT tl.*, tip.visibility
+                    FROM $course_link_table tl
+                    LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
+                    WHERE tl.on_homepage='1' AND tip.visibility = 0";
+                break;
+            default:
+                $sql_links = null;
+                break;
+        }
+        if ($sql_links != null) {
+            $properties = array();
+            $result_links = Database::query($sql_links);
+            while ($links_row = Database::fetch_array($result_links)) {
+                unset($properties);
+                $properties['name'] = $links_row['title'];
+                $properties['link'] = $links_row['url'];
+                $properties['visibility'] = $links_row['visibility'];
+                $properties['image'] = $course_tool_category == TOOL_PUBLIC_BUT_HIDDEN ? 'external_na.gif' : 'external.gif';
+                $properties['adminlink'] = api_get_path(WEB_CODE_PATH).'link/link.php?action=editlink&id='.$links_row['id'];
+                $all_tools_list[] = $properties;
+            }
+        }
+
+        if (isset($all_tools_list)) {
+            $lnk = array();
+            foreach ($all_tools_list as & $tool) {
+
+                if ($tool['image'] == 'scormbuilder.gif') {
+                    // display links to lp only for current session
+                    if (api_get_session_id() != $tool['session_id']) {
+                        continue;
+                    }
+                    // check if the published learnpath is visible for student
+                    $published_lp_id = self::get_published_lp_id_from_link($tool['link']);
+                    if (!api_is_allowed_to_edit(null, true) && !learnpath::is_lp_visible_for_student($published_lp_id,api_get_user_id())) {
+                        continue;
+                    }
+                }
+
+                if (api_get_session_id() != 0 && in_array($tool['name'], array('course_maintenance', 'course_setting'))) {
+                    continue;
+                }
+
+                if (!($i % 2)) {
+                    echo "<tr valign=\"top\">\n";
+                }
+
+                // NOTE : Table contains only the image file name, not full path
+                if (stripos($tool['link'], 'http://') === false && stripos($tool['link'], 'https://') === false && stripos($tool['link'], 'ftp://') === false) {
+                    $tool['link'] = $web_code_path.$tool['link'];
+                }
+                if ($course_tool_category == TOOL_PUBLIC_BUT_HIDDEN) {
+                    $class = 'class="invisible"';
+                }
+                $qm_or_amp = strpos($tool['link'], '?') === false ? '?' : '&amp;';
+
+                $tool['link'] = $tool['link'];
+                echo '<td width="50%" height="30">';
+
+                if (strpos($tool['name'], 'visio_') !== false) {
+                    echo '<a  '.$class.' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']).(($tool['image'] == 'external.gif' || $tool['image'] == 'external_na.gif') ? '' : $qm_or_amp.api_get_cidreq()) . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
+                } elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
+                    echo '<a href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']).$qm_or_amp.api_get_cidreq() . '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '"'.$class.'>';
+                } else {
+                    echo '<a href="'. htmlspecialchars($tool['link']).(($tool['image'] == 'external.gif' || $tool['image'] == 'external_na.gif') ? '' : $qm_or_amp.api_get_cidreq()).'" target="' , $tool['target'], '" '.$class.'>';
+                }
+
+                $tool_name = self::translate_tool_name($tool);
+                echo Display::return_icon($tool['image'], $tool_name),'&nbsp;', $tool_name,'</a>';
+
+                // This part displays the links to hide or remove a tool.
+                // These links are only visible by the course manager.
+                unset($lnk);
+                if (api_is_allowed_to_edit(null, true) && !api_is_coach()) {
+
+                    if ($tool['visibility'] == '1' || $tool['name'] == TOOL_TRACKING) {
+                        $link['name'] = Display::return_icon('remove.gif', get_lang('Deactivate'));
+                        $link['cmd'] = 'hide=yes';
+                        $lnk[] = $link;
+                    }
+
+                    if ($course_tool_category == TOOL_PUBLIC_BUT_HIDDEN) {
+                        $link['name'] = Display::return_icon('add.gif', get_lang('Activate'));
+                        $link['cmd']  = 'restore=yes';
+                        $lnk[] = $link;
+
+                        if ($tool['added_tool'] == 1) {
+                            $link['name'] = Display::return_icon('delete.gif', get_lang('Remove'));
+                            $link['cmd']  = 'remove=yes';
+                            $lnk[] = $link;
+                        }
+                    }
+                    if ($tool['adminlink']) {
+                        echo '<a href="'.$tool['adminlink'].'">'.Display::return_icon('edit.gif', get_lang('Edit')).'</a>';
+                    }
+
+                }
+                if (api_is_platform_admin() && !api_is_coach()) {
+                    if ($tool['visibility'] == 2) {
+                        $link['name'] = Display::return_icon('undelete.gif', get_lang('Activate'));
+
+                        $link['cmd']  = 'hide=yes';
+                        $lnk[] = $link;
+
+                        if ($tool['added_tool'] == 1) {
+                            $link['name'] = get_lang('Delete');
+                            $link['cmd'] = 'askDelete=yes';
+                            $lnk[] = $link;
+                        }
+                    }
+                    if ($tool['visibility'] == 0  && $tool['added_tool'] == 0) {
+                        $link['name'] = Display::return_icon('delete.gif', get_lang('Remove'));
+                        $link['cmd'] = 'remove=yes';
+                        $lnk[] = $link;
+                    }
+                }
+                if (is_array($lnk)) {
+                    foreach ($lnk as & $this_link) {
+                        if (!$tool['adminlink']) {
+                            echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;id='.$tool['id'].'&amp;'.$this_link['cmd'].'">'.$this_link['name'].'</a>';
+                        }
+                    }
+                }
+
+                // Allow editing of invisible homepage links (modified external_module)
+                if ($tool['added_tool'] == 1 && api_is_allowed_to_edit(null, true) && !$tool['visibility']
+                        && $tool['image'] != 'scormbuilder.gif' && $tool['image'] != 'scormbuilder_na.gif') {
+                    echo '<a class="nobold" href="'.api_get_path(WEB_CODE_PATH).'external_module/external_module.php?'.api_get_cidreq().'&amp;id='.$tool['id'].'">'.get_lang('Edit').'</a>';
+                }
+                echo "</td>\n";
+
+                if ($i % 2) {
+                    echo "</tr>\n";
+                }
+
+                $i++;
+            }
+        }
+
+        if ($i % 2) {
+            echo "<td width=\"50%\">&nbsp;</td>\n", "</tr>\n";
+        }
+    }
+
+    /**
+     * Gets the tools of a certain category. Returns an array expected
+     * by show_tools_category()
+     * @param string $course_tool_category	contains the category of tools to
+     * display: "toolauthoring", "toolinteraction", "tooladmin", "tooladminplatform", "toolplugin"
+     * @return array
+     */
+
+    public static function get_tools_category($course_tool_category) {
+        global $_user;
+        $web_code_path = api_get_path(WEB_CODE_PATH);
+        $course_tool_table = Database::get_course_table(TABLE_TOOL_LIST);
+        $is_allowed_to_edit = api_is_allowed_to_edit(null, true);
+        $is_platform_admin = api_is_platform_admin();
+        $all_tools_list = array();
+
+        // Condition for the session
+        $session_id = api_get_session_id();
+        $condition_session = api_get_session_condition($session_id, true, true);
+
+        switch ($course_tool_category) {
+            case TOOL_STUDENT_VIEW:
+                    $condition_display_tools = ' WHERE visibility = 1 AND (category = "authoring" OR category = "interaction" OR category = "plugin") ';
+                    if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
+                        $condition_display_tools = ' WHERE (visibility = 1 AND (category = "authoring" OR category = "interaction" OR category = "plugin") OR (name = "'.TOOL_TRACKING.'") )   ';
+                    }
+                    $sql = "SELECT * FROM $course_tool_table  $condition_display_tools $condition_session ORDER BY id";
+                    $result = Database::query($sql);
+                    $col_link ="##003399";
+                    break;
+            case TOOL_AUTHORING:
+                    $sql = "SELECT * FROM $course_tool_table WHERE category = 'authoring' $condition_session ORDER BY id";
+                    $result = Database::query($sql);
+                    $col_link ="##003399";
+                    break;
+            case TOOL_INTERACTION:
+                    $sql = "SELECT * FROM $course_tool_table WHERE category = 'interaction' $condition_session ORDER BY id";
+                    $result = Database::query($sql);
+                    $col_link ="##003399";
+                    break;
+            case TOOL_ADMIN_VISIBLE:
+                    $sql = "SELECT * FROM $course_tool_table WHERE category = 'admin' AND visibility ='1' $condition_session ORDER BY id";
+                    $result = Database::query($sql);
+                    $col_link ="##003399";
+                    break;
+            case TOOL_ADMIN_PLATEFORM:
+                    $sql = "SELECT * FROM $course_tool_table WHERE category = 'admin' $condition_session ORDER BY id";
+                    $result = Database::query($sql);
+                    $col_link ="##003399";
+                    break;
+            case TOOL_COURSE_PLUGIN:
+                    //Other queries recover id, name, link, image, visibility, admin, address, added_tool, target, category and session_id
+                    // but plugins are not present in the tool table, only globally and inside the course_settings table once configured
+                    $sql = "SELECT * FROM $course_tool_table WHERE category = 'plugin' $condition_session ORDER BY id";
+                    $result = Database::query($sql);
+                    break;
+        }
 
         //Get the list of hidden tools - this might imply performance slowdowns
         // if the course homepage is loaded many times, so the list of hidden
-        // tools might benefit from a shared memory storage later on 
+        // tools might benefit from a shared memory storage later on
         $list = api_get_settings('Tools','list',api_get_current_access_url_id());
         $hide_list = array();
         $check = false;
         foreach ($list as $line) {
-        	if ($line['variable'] == 'course_hide_tools' and $line['selected_value'] == 'true') {
-        		$hide_list[] = $line['subkey'];
+            if ($line['variable'] == 'course_hide_tools' and $line['selected_value'] == 'true') {
+                $hide_list[] = $line['subkey'];
                 $check = true;
-        	}
+            }
         }
-		while ($temp_row = Database::fetch_assoc($result)) {
+        while ($temp_row = Database::fetch_assoc($result)) {
             if ($check) {
-            	if (!in_array($temp_row['name'],$hide_list)) {
-                    $all_tools_list[] = $temp_row;        		
-            	} else {
-            	}
+                if (!in_array($temp_row['name'],$hide_list)) {
+                    $all_tools_list[] = $temp_row;
+                } else {
+                }
             } else {
                     $all_tools_list[] = $temp_row;
             }
-		}
-
-		/*if(api_is_course_coach()) {
-			$result = Database::query("SELECT * FROM $course_tool_table WHERE name='tracking'");
-			$all_tools_list[]=Database :: fetch_array($result);
-		}*/
-
-		$i = 0;
-		// Grabbing all the links that have the property on_homepage set to 1
-		$course_link_table = Database::get_course_table(TABLE_LINK);
-		$course_item_property_table = Database::get_course_table(TABLE_ITEM_PROPERTY);
-
-		switch ($course_tool_category) {
-				case TOOL_AUTHORING:
-					$sql_links = "SELECT tl.*, tip.visibility
-						FROM $course_link_table tl
-						LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
-							WHERE tl.on_homepage='1' $condition_session";
-					break;
-
-				case TOOL_INTERACTION:
-					$sql_links = null;
-					/*
-					$sql_links = "SELECT tl.*, tip.visibility
-						FROM $course_link_table tl
-						LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
-							WHERE tl.on_homepage='1' ";
-					*/
-					break;
-
-				case TOOL_STUDENT_VIEW:
-					$sql_links = "SELECT tl.*, tip.visibility
-						FROM $course_link_table tl
-						LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
-							WHERE tl.on_homepage='1' $condition_session";
-					break;
-
-				case TOOL_ADMIN:
-					$sql_links = "SELECT tl.*, tip.visibility
-						FROM $course_link_table tl
-						LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
-							WHERE tl.on_homepage='1' $condition_session";
-					break;
-
-				default:
-					$sql_links = null;
-					break;
-		}
-
-		// Edited by Kevin Van Den Haute (kevin@develop-it.be) for integrating Smartblogs
-		if ($sql_links != null) {
-			$result_links = Database::query($sql_links);
-			$properties = array();
-			if (Database::num_rows($result_links) > 0) {
-				while ($links_row = Database::fetch_array($result_links)) {
-					unset($properties);
-					$properties['name'] = $links_row['title'];
-					$properties['session_id'] = $links_row['session_id'];
-					$properties['link'] = $links_row['url'];
-					$properties['visibility'] = $links_row['visibility'];
-					$properties['image'] = ($links_row['visibility'] == '0') ? 'file_html.gif' : 'file_html.gif';
-					$properties['adminlink'] = api_get_path(WEB_CODE_PATH).'link/link.php?action=editlink&id='.$links_row['id'];
-					$properties['target'] = $links_row['target'];
-					$tmp_all_tools_list[] = $properties;
-				}
-			}
-		}
-
-		if (isset($tmp_all_tools_list)) {
-			foreach ($tmp_all_tools_list as $tool) {
-				if ($tool['image'] == 'blog.gif') {
-					// Init
-					$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
-
-					// Get blog id
-					$blog_id = substr($tool['link'], strrpos($tool['link'], '=') + 1, strlen($tool['link']));
-
-					// Get blog members
-					if ($is_platform_admin) {
-						$sql_blogs = "
-							SELECT *
-							FROM " . $tbl_blogs_rel_user . " blogs_rel_user
-							WHERE blog_id = " . $blog_id;
-					} else {
-						$sql_blogs = "
-							SELECT *
-							FROM " . $tbl_blogs_rel_user . " blogs_rel_user
-							WHERE
-								blog_id = " . $blog_id . " AND
-								user_id = " . api_get_user_id();
-					}
-
-					$result_blogs = Database::query($sql_blogs);
-
-					if (Database::num_rows($result_blogs) > 0) {
-						$all_tools_list[] = $tool;
-					}
-				} else {
-					$all_tools_list[] = $tool;
-				}
-			}
-		}
-		return $all_tools_list;
-	}
-
-	/**
-	 * Displays the tools of a certain category.
-	 * @param array List of tools as returned by get_tools_category()
-	 * @return void
-	 */
-	public static function show_tools_category($all_tools_list, $theme = 'activity') {
+        }
+
+        /*if(api_is_course_coach()) {
+            $result = Database::query("SELECT * FROM $course_tool_table WHERE name='tracking'");
+            $all_tools_list[]=Database :: fetch_array($result);
+        }*/
+
+        $i = 0;
+        // Grabbing all the links that have the property on_homepage set to 1
+        $course_link_table = Database::get_course_table(TABLE_LINK);
+        $course_item_property_table = Database::get_course_table(TABLE_ITEM_PROPERTY);
+
+        switch ($course_tool_category) {
+                case TOOL_AUTHORING:
+                    $sql_links = "SELECT tl.*, tip.visibility
+                        FROM $course_link_table tl
+                        LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
+                            WHERE tl.on_homepage='1' $condition_session";
+                    break;
+
+                case TOOL_INTERACTION:
+                    $sql_links = null;
+                    /*
+                    $sql_links = "SELECT tl.*, tip.visibility
+                        FROM $course_link_table tl
+                        LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
+                            WHERE tl.on_homepage='1' ";
+                    */
+                    break;
+
+                case TOOL_STUDENT_VIEW:
+                    $sql_links = "SELECT tl.*, tip.visibility
+                        FROM $course_link_table tl
+                        LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
+                            WHERE tl.on_homepage='1' $condition_session";
+                    break;
+
+                case TOOL_ADMIN:
+                    $sql_links = "SELECT tl.*, tip.visibility
+                        FROM $course_link_table tl
+                        LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
+                            WHERE tl.on_homepage='1' $condition_session";
+                    break;
+
+                default:
+                    $sql_links = null;
+                    break;
+        }
+
+        // Edited by Kevin Van Den Haute (kevin@develop-it.be) for integrating Smartblogs
+        if ($sql_links != null) {
+            $result_links = Database::query($sql_links);
+            $properties = array();
+            if (Database::num_rows($result_links) > 0) {
+                while ($links_row = Database::fetch_array($result_links)) {
+                    unset($properties);
+                    $properties['name'] = $links_row['title'];
+                    $properties['session_id'] = $links_row['session_id'];
+                    $properties['link'] = $links_row['url'];
+                    $properties['visibility'] = $links_row['visibility'];
+                    $properties['image'] = ($links_row['visibility'] == '0') ? 'file_html.gif' : 'file_html.gif';
+                    $properties['adminlink'] = api_get_path(WEB_CODE_PATH).'link/link.php?action=editlink&id='.$links_row['id'];
+                    $properties['target'] = $links_row['target'];
+                    $tmp_all_tools_list[] = $properties;
+                }
+            }
+        }
+
+        if (isset($tmp_all_tools_list)) {
+            foreach ($tmp_all_tools_list as $tool) {
+                if ($tool['image'] == 'blog.gif') {
+                    // Init
+                    $tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
+
+                    // Get blog id
+                    $blog_id = substr($tool['link'], strrpos($tool['link'], '=') + 1, strlen($tool['link']));
+
+                    // Get blog members
+                    if ($is_platform_admin) {
+                        $sql_blogs = "
+                            SELECT *
+                            FROM " . $tbl_blogs_rel_user . " blogs_rel_user
+                            WHERE blog_id = " . $blog_id;
+                    } else {
+                        $sql_blogs = "
+                            SELECT *
+                            FROM " . $tbl_blogs_rel_user . " blogs_rel_user
+                            WHERE
+                                blog_id = " . $blog_id . " AND
+                                user_id = " . api_get_user_id();
+                    }
+
+                    $result_blogs = Database::query($sql_blogs);
+
+                    if (Database::num_rows($result_blogs) > 0) {
+                        $all_tools_list[] = $tool;
+                    }
+                } else {
+                    $all_tools_list[] = $tool;
+                }
+            }
+        }
+        return $all_tools_list;
+    }
+
+    /**
+     * Displays the tools of a certain category.
+     * @param array List of tools as returned by get_tools_category()
+     * @return void
+     */
+    public static function show_tools_category($all_tools_list, $theme = 'activity') {
         global $_user;
-	    if ($theme == 'vertical_activity') {
-			//ordering by get_lang name
-			$order_tool_list = array();
-			if (is_array($all_tools_list) && count($all_tools_list)>0) {
-    			foreach($all_tools_list as $key=>$new_tool) {
-    				$tool_name = self::translate_tool_name($new_tool);
-    				$order_tool_list [$key]= $tool_name;
-    			}
+        if ($theme == 'vertical_activity') {
+            //ordering by get_lang name
+            $order_tool_list = array();
+            if (is_array($all_tools_list) && count($all_tools_list)>0) {
+                foreach($all_tools_list as $key=>$new_tool) {
+                    $tool_name = self::translate_tool_name($new_tool);
+                    $order_tool_list [$key]= $tool_name;
+                }
                 natsort($order_tool_list);
                 $my_temp_tool_array = array();
                 foreach($order_tool_list as $key=>$new_tool) {
-                	$my_temp_tool_array[] = $all_tools_list[$key];
+                    $my_temp_tool_array[] = $all_tools_list[$key];
                 }
                 $all_tools_list = $my_temp_tool_array;
-			} else {
-			    $all_tools_list = array();
-			}
-		}
-		$web_code_path = api_get_path(WEB_CODE_PATH);
-		$course_tool_table = Database::get_course_table(TABLE_TOOL_LIST);
-		$is_allowed_to_edit = api_is_allowed_to_edit(null, true);
-		$is_platform_admin = api_is_platform_admin();
-		//var_dump($all_tools_list);
-		$i = 0;
-		if (isset($all_tools_list)) {
-			$lnk = '';
-			if ($theme == 'vertical_activity') echo '<ul>';
-			foreach ($all_tools_list as & $tool) {
-
-				if ($tool['image'] == 'scormbuilder.gif') {
-					// display links to lp only for current session
-					if (api_get_session_id() != $tool['session_id']) {
-						continue;
-					}
-					// check if the published learnpath is visible for student
-					$published_lp_id = self::get_published_lp_id_from_link($tool['link']);
-				    if (!api_is_allowed_to_edit(null, true) && !learnpath::is_lp_visible_for_student($published_lp_id,api_get_user_id())) {
-				    	continue;
-				    }
-				}
-
-				if (api_get_session_id() != 0 && in_array($tool['name'], array('course_maintenance', 'course_setting'))) {
-					continue;
-				}
-				if ($theme == 'activity') {
-					if (!($i % 2)) {
-						echo "<tr valign=\"top\">\n";
-	            	}
-				} elseif ($theme == 'vertical_activity') {
-					echo '<li>';
-				}
-
-				// This part displays the links to hide or remove a tool.
-				// These links are only visible by the course manager.
-				unset($lnk);
-
-				if ($theme == 'activity') {
-					echo '<td width="50%">'."\n";
-				}
-
-				if ($is_allowed_to_edit && !api_is_coach()) {
-
-					if ($tool['visibility'] == '1' && $tool['admin'] != '1') {
-						$link['name'] = Display::return_icon('visible.gif', get_lang('Deactivate'), array('id' => 'linktool_'.$tool['id']));
-						$link['cmd'] = 'hide=yes';
-						$lnk[] = $link;
-					}
-					if ($tool['visibility'] == '0' && $tool['admin'] != '1') {
-						$link['name'] = Display::return_icon('invisible.gif', get_lang('Activate'), array('id' => 'linktool_'.$tool['id']));
-						$link['cmd'] = 'restore=yes';
-						$lnk[] = $link;
-					}
-
-					if (!empty($tool['adminlink'])) {
-						echo '<a href="'.$tool['adminlink'].'">'.Display::return_icon('edit.gif', get_lang('Edit')).'</a>';
-					}
-
-				}
-
-				// Both checks are necessary as is_platform_admin doesn't take student view into account
-				if ($is_platform_admin && $is_allowed_to_edit) {
-	 				if ($tool['admin'] != '1') {
-						$link['cmd'] = 'hide=yes';
-					}
-				}
-
-				if (isset($lnk) && is_array($lnk)) {
-					foreach ($lnk as $this_link) {
-						if (empty($tool['adminlink'])) {
-							echo '<a class="make_visible_and_invisible"  href="'.api_get_self().'?'.api_get_cidreq().'&amp;id='.$tool['id'].'&amp;'.$this_link['cmd'].'">'.$this_link['name'].'</a>';
-						}
-					}
-				} else {
-					echo '&nbsp;&nbsp;&nbsp;&nbsp;';
-				}
-
-				// NOTE : Table contains only the image file name, not full path
-				if (stripos($tool['link'], 'http://') === false && stripos($tool['link'], 'https://') === false && stripos($tool['link'], 'ftp://') === false) {
-					$tool['link'] = $web_code_path.$tool['link'];
-	            }
-				if ($tool['visibility'] == '0' && $tool['admin'] != '1') {
-				  	$class = 'class="invisible"';
-				  	$info = pathinfo($tool['image']);
-				  	$basename = basename($tool['image'], '.'.$info['extension']); // $file is set to "index"
-					$tool['image'] = $basename.'_na.'.$info['extension'];
-				} else {
-					$class = '';
-				}
-
-				$qm_or_amp = strpos($tool['link'], '?') === false ? '?' : '&';
-				// If it's a link, we don't add the cidReq
-				if ($tool['image'] == 'file_html.gif' || $tool['image'] == 'file_html_na.gif') {
-					$tool['link'] = $tool['link'].$qm_or_amp;
-				} else {
-					$tool['link'] = $tool['link'].$qm_or_amp.api_get_cidreq();
-				}
-
-				if (strpos($tool['name'],'visio_') !== false) {
-					$toollink = "\t" . '<a id="tooldesc_'.$tool["id"].'"  ' . $class . ' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']) . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
-					$my_tool_link = "\t" . '<a id="istooldesc_'.$tool["id"].'"  ' . $class . ' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']) . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
-
-				} elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
-					$toollink = "\t" . '<a id="tooldesc_'.$tool["id"].'" ' . $class . ' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']) . '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
-					$my_tool_link="\t" . '<a id="istooldesc_'.$tool["id"].'" ' . $class . ' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']) . '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
-				} else {
-					if (count(explode('type=classroom',$tool['link'])) == 2 || count(explode('type=conference', $tool['link'])) == 2) {
-						$toollink = "\t" . '<a id="tooldesc_'.$tool["id"].'" ' . $class . ' href="' . $tool['link'] . '" target="_blank">';
-						$my_tool_link = "\t" . '<a id="istooldesc_'.$tool["id"].'" ' . $class . ' href="' . $tool['link'] . '" target="_blank">';
-
-					} else {
-						$toollink = "\t" . '<a id="tooldesc_'.$tool["id"].'" ' . $class . ' href="' . htmlspecialchars($tool['link']) . '" target="' . $tool['target'] . '">';
-						$my_tool_link = "\t" . '<a id="istooldesc_'.$tool["id"].'" ' . $class . ' href="' . htmlspecialchars($tool['link']) . '" target="' . $tool['target'] . '">';
-					}
-				}
-				echo $toollink;
-				$tool_name = self::translate_tool_name($tool);
-				Display::display_icon($tool['image'], $tool_name, array('class' => 'tool-icon', 'id' => 'toolimage_'.$tool['id']));
-
-				// Validacion when belongs to a session
-				$session_img = api_get_session_image($tool['session_id'], $_user['status']);
-
-				echo '</a> ';
-				echo $my_tool_link;
-				echo "{$tool_name}$session_img";
-
-				echo '</a>';
-				if ($theme == 'activity') {
-					echo '</td>';
-					if ($i % 2) {
-						echo '</tr>';
-					}
-				} elseif($theme == 'vertical_activity') {
-					echo '</li>';
-				}
-				$i++;
-			} // end of foreach
-		}
-		if ($theme == 'activity') {
-			if ($i % 2) {
-				echo "<td width=\"50%\">&nbsp;</td>\n", "</tr>\n";
-			}
-		} elseif($theme == 'vertical_activity') {
-			echo '</ul>';
-		}
-
-	}
-
-	/**
-	 * Shows the general data for a particular meeting
-	 *
-	 * @param id	session id
-	 * @return string	session data
-	 */
-	public static function show_session_data($id_session) {
-		$session_table 			= Database::get_main_table(TABLE_MAIN_SESSION);
-		$user_table 			= Database::get_main_table(TABLE_MAIN_USER);
-		$session_category_table = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
-
-		if ($id_session != strval(intval($id_session))) {
-			return '';
-		} else {
-			$id_session = intval($id_session);
-		}
-
-		$sql = 'SELECT name, nbr_courses, nbr_users, nbr_classes, DATE_FORMAT(date_start,"%d-%m-%Y") as date_start, DATE_FORMAT(date_end,"%d-%m-%Y") as date_end, lastname, firstname, username, session_admin_id, nb_days_access_before_beginning, nb_days_access_after_end, session_category_id, visibility
-					FROM '.$session_table.'
-				LEFT JOIN '.$user_table.'
-					ON id_coach = user_id
-				WHERE '.$session_table.'.id='.$id_session;
-
-		$rs = Database::query($sql);
-		$session = Database::store_result($rs);
-		$session = $session[0];
-
-		$sql_category = 'SELECT name FROM '.$session_category_table.' WHERE id = "'.intval($session['session_category_id']).'"';
-		$rs_category = Database::query($sql_category);
-		$session_category = '';
-		if (Database::num_rows($rs_category) > 0) {
-			$rows_session_category = Database::store_result($rs_category);
-			$rows_session_category = $rows_session_category[0];
-			$session_category = $rows_session_category['name'];
-		}
-
-		if ($session['date_start'] == '00-00-0000') {
-			$msg_date = get_lang('NoTimeLimits');
-		} else {
-			$msg_date = get_lang('From').' '.$session['date_start'].' '.get_lang('To').' '.$session['date_end'];
-		}
-
-		$output  = '';
-		if (!empty($session_category)) {
-			$output .= '<tr><td>'. get_lang('SessionCategory') . ': ' . '<b>' . $session_category .'</b></td></tr>';
-		}
-		$output .= '<tr><td style="width:50%">'. get_lang('SessionName') . ': ' . '<b>' . $session['name'] .'</b></td><td>'. get_lang('GeneralCoach') . ': ' . '<b>' . $session['lastname'].' '.$session['firstname'].' ('.$session['username'].')' .'</b></td></tr>';
-		$output .= '<tr><td>'. get_lang('SessionIdentifier') . ': '. Display::return_icon('star.png', ' ', array('align' => 'absmiddle')) .'</td><td>'. get_lang('Date') . ': ' . '<b>' . $msg_date .'</b></td></tr>';
-
-		return $output;
-	}
-
-	/**
-	 * Retrieves the name-field within a tool-record and translates it on necessity.
-	 * @param array $tool		The input record.
-	 * @return string			Returns the name of the corresponding tool.
-	 */
-	public static function translate_tool_name(& $tool) {
-		static $already_translated_icons = array(
-			'file_html.gif', 'file_html_na.gif',
-			'scormbuilder.gif', 'scormbuilder_na.gif',
-			'blog.gif', 'blog_na.gif',
-			'external.gif', 'external_na.gif'
-		);
-
-		if (in_array($tool['image'], $already_translated_icons)) {
-			$tool_name = Security::remove_XSS(stripslashes($tool['name']));
-		} else {
-			$variable = 'Tool'.api_underscore_to_camel_case($tool['name']); // The newly opened language variables.
-			$variable_old = ucfirst($tool['name']);         // The old language variables as a second chance exist.
-			if (api_is_translated($variable)) {
-				$tool_name = get_lang($variable);
-			} elseif (api_is_translated($variable_old)) {
-				$tool_name = get_lang($variable_old);
-			} else {
-				$tool_name = get_lang($variable);
-			}
-		}
-
-		return $tool_name;
-	}
-
-	/**
-	 * Get published learning path id from link inside course home
-	 * @param 	string	Link to published lp
-	 * @return	int		Learning path id
-	 */
-	public static function get_published_lp_id_from_link($published_lp_link) {
-		$lp_id = 0;
-		$param_lp_id = strstr($published_lp_link, 'lp_id=');
-		if (!empty($param_lp_id)) {
-			$a_param_lp_id = explode('=',$param_lp_id);
-			if (isset($a_param_lp_id[1])) {
-				$lp_id = intval($a_param_lp_id[1]);
-			}
-		}
-		return $lp_id;
-	}
+            } else {
+                $all_tools_list = array();
+            }
+        }
+        $web_code_path = api_get_path(WEB_CODE_PATH);
+        $course_tool_table = Database::get_course_table(TABLE_TOOL_LIST);
+        $is_allowed_to_edit = api_is_allowed_to_edit(null, true);
+        $is_platform_admin = api_is_platform_admin();
+        //var_dump($all_tools_list);
+        $i = 0;
+        if (isset($all_tools_list)) {
+            $lnk = '';
+            if ($theme == 'vertical_activity') echo '<ul>';
+            foreach ($all_tools_list as & $tool) {
+
+                if ($tool['image'] == 'scormbuilder.gif') {
+                    // display links to lp only for current session
+                    if (api_get_session_id() != $tool['session_id']) {
+                        continue;
+                    }
+                    // check if the published learnpath is visible for student
+                    $published_lp_id = self::get_published_lp_id_from_link($tool['link']);
+                    if (!api_is_allowed_to_edit(null, true) && !learnpath::is_lp_visible_for_student($published_lp_id,api_get_user_id())) {
+                        continue;
+                    }
+                }
+
+                if (api_get_session_id() != 0 && in_array($tool['name'], array('course_maintenance', 'course_setting'))) {
+                    continue;
+                }
+                if ($theme == 'activity') {
+                    if (!($i % 2)) {
+                        echo "<tr valign=\"top\">\n";
+                    }
+                } elseif ($theme == 'vertical_activity') {
+                    echo '<li>';
+                }
+
+                // This part displays the links to hide or remove a tool.
+                // These links are only visible by the course manager.
+                unset($lnk);
+
+                if ($theme == 'activity') {
+                    echo '<td width="50%">'."\n";
+                }
+
+                if ($is_allowed_to_edit && !api_is_coach()) {
+
+                    if ($tool['visibility'] == '1' && $tool['admin'] != '1') {
+                        $link['name'] = Display::return_icon('visible.gif', get_lang('Deactivate'), array('id' => 'linktool_'.$tool['id']));
+                        $link['cmd'] = 'hide=yes';
+                        $lnk[] = $link;
+                    }
+                    if ($tool['visibility'] == '0' && $tool['admin'] != '1') {
+                        $link['name'] = Display::return_icon('invisible.gif', get_lang('Activate'), array('id' => 'linktool_'.$tool['id']));
+                        $link['cmd'] = 'restore=yes';
+                        $lnk[] = $link;
+                    }
+
+                    if (!empty($tool['adminlink'])) {
+                        echo '<a href="'.$tool['adminlink'].'">'.Display::return_icon('edit.gif', get_lang('Edit')).'</a>';
+                    }
+
+                }
+
+                // Both checks are necessary as is_platform_admin doesn't take student view into account
+                if ($is_platform_admin && $is_allowed_to_edit) {
+                     if ($tool['admin'] != '1') {
+                        $link['cmd'] = 'hide=yes';
+                    }
+                }
+
+                if (isset($lnk) && is_array($lnk)) {
+                    foreach ($lnk as $this_link) {
+                        if (empty($tool['adminlink'])) {
+                            echo '<a class="make_visible_and_invisible"  href="'.api_get_self().'?'.api_get_cidreq().'&amp;id='.$tool['id'].'&amp;'.$this_link['cmd'].'">'.$this_link['name'].'</a>';
+                        }
+                    }
+                } else {
+                    echo '&nbsp;&nbsp;&nbsp;&nbsp;';
+                }
+
+                // NOTE : Table contains only the image file name, not full path
+                if (stripos($tool['link'], 'http://') === false && stripos($tool['link'], 'https://') === false && stripos($tool['link'], 'ftp://') === false) {
+                    $tool['link'] = $web_code_path.$tool['link'];
+                }
+                if ($tool['visibility'] == '0' && $tool['admin'] != '1') {
+                      $class = 'class="invisible"';
+                      $info = pathinfo($tool['image']);
+                      $basename = basename($tool['image'], '.'.$info['extension']); // $file is set to "index"
+                    $tool['image'] = $basename.'_na.'.$info['extension'];
+                } else {
+                    $class = '';
+                }
+
+                $qm_or_amp = strpos($tool['link'], '?') === false ? '?' : '&';
+                // If it's a link, we don't add the cidReq
+                if ($tool['image'] == 'file_html.gif' || $tool['image'] == 'file_html_na.gif') {
+                    $tool['link'] = $tool['link'].$qm_or_amp;
+                } else {
+                    $tool['link'] = $tool['link'].$qm_or_amp.api_get_cidreq();
+                }
+
+                if (strpos($tool['name'],'visio_') !== false) {
+                    $toollink = "\t" . '<a id="tooldesc_'.$tool["id"].'"  ' . $class . ' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']) . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
+                    $my_tool_link = "\t" . '<a id="istooldesc_'.$tool["id"].'"  ' . $class . ' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']) . '\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
+
+                } elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
+                    $toollink = "\t" . '<a id="tooldesc_'.$tool["id"].'" ' . $class . ' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']) . '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
+                    $my_tool_link="\t" . '<a id="istooldesc_'.$tool["id"].'" ' . $class . ' href="javascript: void(0);" onclick="javascript: window.open(\'' . htmlspecialchars($tool['link']) . '\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+380+\', width=\'+625+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="' . $tool['target'] . '">';
+                } else {
+                    if (count(explode('type=classroom',$tool['link'])) == 2 || count(explode('type=conference', $tool['link'])) == 2) {
+                        $toollink = "\t" . '<a id="tooldesc_'.$tool["id"].'" ' . $class . ' href="' . $tool['link'] . '" target="_blank">';
+                        $my_tool_link = "\t" . '<a id="istooldesc_'.$tool["id"].'" ' . $class . ' href="' . $tool['link'] . '" target="_blank">';
+
+                    } else {
+                        $toollink = "\t" . '<a id="tooldesc_'.$tool["id"].'" ' . $class . ' href="' . htmlspecialchars($tool['link']) . '" target="' . $tool['target'] . '">';
+                        $my_tool_link = "\t" . '<a id="istooldesc_'.$tool["id"].'" ' . $class . ' href="' . htmlspecialchars($tool['link']) . '" target="' . $tool['target'] . '">';
+                    }
+                }
+                echo $toollink;
+                $tool_name = self::translate_tool_name($tool);
+                Display::display_icon($tool['image'], $tool_name, array('class' => 'tool-icon', 'id' => 'toolimage_'.$tool['id']));
+
+                // Validacion when belongs to a session
+                $session_img = api_get_session_image($tool['session_id'], $_user['status']);
+
+                echo '</a> ';
+                echo $my_tool_link;
+                echo "{$tool_name}$session_img";
+
+                echo '</a>';
+                if ($theme == 'activity') {
+                    echo '</td>';
+                    if ($i % 2) {
+                        echo '</tr>';
+                    }
+                } elseif($theme == 'vertical_activity') {
+                    echo '</li>';
+                }
+                $i++;
+            } // end of foreach
+        }
+        if ($theme == 'activity') {
+            if ($i % 2) {
+                echo "<td width=\"50%\">&nbsp;</td>\n", "</tr>\n";
+            }
+        } elseif($theme == 'vertical_activity') {
+            echo '</ul>';
+        }
+
+    }
+
+    /**
+     * Shows the general data for a particular meeting
+     *
+     * @param id	session id
+     * @return string	session data
+     */
+    public static function show_session_data($id_session) {
+        $session_table 			= Database::get_main_table(TABLE_MAIN_SESSION);
+        $user_table 			= Database::get_main_table(TABLE_MAIN_USER);
+        $session_category_table = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
+
+        if ($id_session != strval(intval($id_session))) {
+            return '';
+        } else {
+            $id_session = intval($id_session);
+        }
+
+        $sql = 'SELECT name, nbr_courses, nbr_users, nbr_classes, DATE_FORMAT(date_start,"%d-%m-%Y") as date_start, DATE_FORMAT(date_end,"%d-%m-%Y") as date_end, lastname, firstname, username, session_admin_id, nb_days_access_before_beginning, nb_days_access_after_end, session_category_id, visibility
+                    FROM '.$session_table.'
+                LEFT JOIN '.$user_table.'
+                    ON id_coach = user_id
+                WHERE '.$session_table.'.id='.$id_session;
+
+        $rs = Database::query($sql);
+        $session = Database::store_result($rs);
+        $session = $session[0];
+
+        $sql_category = 'SELECT name FROM '.$session_category_table.' WHERE id = "'.intval($session['session_category_id']).'"';
+        $rs_category = Database::query($sql_category);
+        $session_category = '';
+        if (Database::num_rows($rs_category) > 0) {
+            $rows_session_category = Database::store_result($rs_category);
+            $rows_session_category = $rows_session_category[0];
+            $session_category = $rows_session_category['name'];
+        }
+
+        if ($session['date_start'] == '00-00-0000') {
+            $msg_date = get_lang('NoTimeLimits');
+        } else {
+            $msg_date = get_lang('From').' '.$session['date_start'].' '.get_lang('To').' '.$session['date_end'];
+        }
+
+        $output  = '';
+        if (!empty($session_category)) {
+            $output .= '<tr><td>'. get_lang('SessionCategory') . ': ' . '<b>' . $session_category .'</b></td></tr>';
+        }
+        $output .= '<tr><td style="width:50%">'. get_lang('SessionName') . ': ' . '<b>' . $session['name'] .'</b></td><td>'. get_lang('GeneralCoach') . ': ' . '<b>' . $session['lastname'].' '.$session['firstname'].' ('.$session['username'].')' .'</b></td></tr>';
+        $output .= '<tr><td>'. get_lang('SessionIdentifier') . ': '. Display::return_icon('star.png', ' ', array('align' => 'absmiddle')) .'</td><td>'. get_lang('Date') . ': ' . '<b>' . $msg_date .'</b></td></tr>';
+
+        return $output;
+    }
+
+    /**
+     * Retrieves the name-field within a tool-record and translates it on necessity.
+     * @param array $tool		The input record.
+     * @return string			Returns the name of the corresponding tool.
+     */
+    public static function translate_tool_name(& $tool) {
+        static $already_translated_icons = array(
+            'file_html.gif', 'file_html_na.gif',
+            'scormbuilder.gif', 'scormbuilder_na.gif',
+            'blog.gif', 'blog_na.gif',
+            'external.gif', 'external_na.gif'
+        );
+
+        if (in_array($tool['image'], $already_translated_icons)) {
+            $tool_name = Security::remove_XSS(stripslashes($tool['name']));
+        } else {
+            $variable = 'Tool'.api_underscore_to_camel_case($tool['name']); // The newly opened language variables.
+            $variable_old = ucfirst($tool['name']);         // The old language variables as a second chance exist.
+            if (api_is_translated($variable)) {
+                $tool_name = get_lang($variable);
+            } elseif (api_is_translated($variable_old)) {
+                $tool_name = get_lang($variable_old);
+            } else {
+                $tool_name = get_lang($variable);
+            }
+        }
+
+        return $tool_name;
+    }
+
+    /**
+     * Get published learning path id from link inside course home
+     * @param 	string	Link to published lp
+     * @return	int		Learning path id
+     */
+    public static function get_published_lp_id_from_link($published_lp_link) {
+        $lp_id = 0;
+        $param_lp_id = strstr($published_lp_link, 'lp_id=');
+        if (!empty($param_lp_id)) {
+            $a_param_lp_id = explode('=',$param_lp_id);
+            if (isset($a_param_lp_id[1])) {
+                $lp_id = intval($a_param_lp_id[1]);
+            }
+        }
+        return $lp_id;
+    }
 
 }