/**
* presentation title doesn't have to be page title, it may be
* chapter title + page title or chapter title only, depending on settings
*
* @param string $a_mode IL_CHAPTER_TITLE | IL_PAGE_TITLE | IL_NO_HEADER
*/
function _getPresentationTitle($a_pg_id, $a_mode = IL_CHAPTER_TITLE, $a_include_numbers = false, $a_time_scheduled_activation = false, $a_force_content = false)
{
global $ilDB;
// select
$query = "SELECT * FROM lm_data WHERE obj_id = " . $ilDB->quote($a_pg_id, "integer");
$pg_set = $ilDB->query($query);
$pg_rec = $ilDB->fetchAssoc($pg_set);
if ($a_mode == IL_NO_HEADER && !$a_force_content) {
return "";
}
$tree = new ilTree($pg_rec["lm_id"]);
$tree->setTableNames('lm_tree', 'lm_data');
$tree->setTreeTablePK("lm_id");
if ($a_mode == IL_PAGE_TITLE) {
$nr = "";
return $nr . $pg_rec["title"];
}
if ($tree->isInTree($pg_rec["obj_id"])) {
$pred_node = $tree->fetchPredecessorNode($pg_rec["obj_id"], "st");
$childs = $tree->getChildsByType($pred_node["obj_id"], "pg");
$cnt_str = "";
if (count($childs) > 1) {
$cnt = 0;
foreach ($childs as $child) {
include_once "./Services/COPage/classes/class.ilPageObject.php";
$active = ilPageObject::_lookupActive($child["obj_id"], ilObject::_lookupType($pg_rec["lm_id"]), $a_time_scheduled_activation);
if (!$active) {
$act_data = ilPageObject::_lookupActivationData((int) $child["obj_id"], ilObject::_lookupType($pg_rec["lm_id"]));
if ($act_data["show_activation_info"] && ilUtil::now() < $act_data["activation_start"]) {
$active = true;
}
}
if ($child["type"] != "pg" || $active) {
$cnt++;
}
if ($child["obj_id"] == $pg_rec["obj_id"]) {
$cur_cnt = $cnt;
}
}
if ($cnt > 1) {
$cnt_str = " (" . $cur_cnt . "/" . $cnt . ")";
}
}
require_once "./Modules/LearningModule/classes/class.ilStructureObject.php";
//$struct_obj =& new ilStructureObject($pred_node["obj_id"]);
//return $struct_obj->getTitle();
return ilStructureObject::_getPresentationTitle($pred_node["obj_id"], $a_include_numbers) . $cnt_str;
//return $pred_node["title"].$cnt_str;
} else {
return $pg_rec["title"];
}
}
/**
* inserts sequential learning module navigation
* at template variable LMNAVIGATION_CONTENT
*/
function ilLMNavigation()
{
global $ilBench, $ilUser;
$ilBench->start("ContentPresentation", "ilLMNavigation");
include_once "./Services/COPage/classes/class.ilPageObject.php";
include_once "./Services/Accessibility/classes/class.ilAccessKeyGUI.php";
$page_id = $this->getCurrentPageId();
if (empty($page_id)) {
return;
}
// process navigation for free page
if (!$this->lm_tree->isInTree($page_id)) {
if ($this->offlineMode() || $_GET["back_pg"] == "") {
return;
}
$limpos = strpos($_GET["back_pg"], ":");
if ($limpos > 0) {
$back_pg = substr($_GET["back_pg"], 0, $limpos);
} else {
$back_pg = $_GET["back_pg"];
}
if (!$this->lm->cleanFrames()) {
$back_href = $this->getLink($this->lm->getRefId(), "layout", $back_pg, $_GET["frame"], "", "reduce");
$back_target = "";
} else {
$back_href = $this->getLink($this->lm->getRefId(), "layout", $back_pg, "", "", "reduce");
$back_target = 'target="' . ilFrameTargetInfo::_getFrame("MainContent") . '" ';
}
$back_img = ilUtil::getImagePath("nav_arr2_L.png", false, "output", $this->offlineMode());
$this->tpl->setCurrentBlock("ilLMNavigation_Prev");
$this->tpl->setVariable("IMG_PREV", $back_img);
$this->tpl->setVariable("HREF_PREV", $back_href);
$this->tpl->setVariable("FRAME_PREV", $back_target);
$this->tpl->setVariable("TXT_PREV", $this->lng->txt("back"));
$this->tpl->setVariable("ALT_PREV", $this->lng->txt("back"));
$this->tpl->setVariable("PREV_ACC_KEY", ilAccessKeyGUI::getAttribute(ilAccessKey::PREVIOUS));
$this->tpl->setVariable("SPACER_PREV", $this->offlineMode() ? "images/spacer.png" : ilUtil::getImagePath("spacer.png"));
$this->tpl->parseCurrentBlock();
$this->tpl->setCurrentBlock("ilLMNavigation_Prev2");
$this->tpl->setVariable("IMG_PREV2", $back_img);
$this->tpl->setVariable("HREF_PREV2", $back_href);
$this->tpl->setVariable("FRAME_PREV2", $back_target);
$this->tpl->setVariable("TXT_PREV2", $this->lng->txt("back"));
$this->tpl->setVariable("ALT_PREV2", $this->lng->txt("back"));
$this->tpl->setVariable("SPACER_PREV2", $this->offlineMode() ? "images/spacer.png" : ilUtil::getImagePath("spacer.png"));
$this->tpl->parseCurrentBlock();
return;
}
// determine successor page_id
$ilBench->start("ContentPresentation", "ilLMNavigation_fetchSuccessor");
$found = false;
// empty chapter
if ($this->chapter_has_no_active_page && ilLMObject::_lookupType($_GET["obj_id"]) == "st") {
$c_id = $_GET["obj_id"];
} else {
if ($this->deactivated_page) {
$c_id = $_GET["obj_id"];
} else {
$c_id = $page_id;
}
}
while (!$found) {
$succ_node = $this->lm_tree->fetchSuccessorNode($c_id, "pg");
$c_id = $succ_node["obj_id"];
$active = ilPageObject::_lookupActive($c_id, $this->lm->getType(), $this->lm_set->get("time_scheduled_page_activation"));
if ($succ_node["obj_id"] > 0 && ($ilUser->getId() == ANONYMOUS_USER_ID || $this->needs_to_be_purchased) && ($this->lm->getPublicAccessMode() == "selected" && !ilLMObject::_isPagePublic($succ_node["obj_id"]))) {
$found = false;
} else {
if ($succ_node["obj_id"] > 0 && !$active) {
// look, whether activation data should be shown
$act_data = ilPageObject::_lookupActivationData((int) $succ_node["obj_id"], $this->lm->getType());
if ($act_data["show_activation_info"] && ilUtil::now() < $act_data["activation_start"]) {
$found = true;
} else {
$found = false;
}
} else {
$found = true;
}
}
}
$ilBench->stop("ContentPresentation", "ilLMNavigation_fetchSuccessor");
$succ_str = $succ_node !== false ? " -> " . $succ_node["obj_id"] . "_" . $succ_node["type"] : "";
// determine predecessor page id
$ilBench->start("ContentPresentation", "ilLMNavigation_fetchPredecessor");
$found = false;
if ($this->deactivated_page) {
$c_id = $_GET["obj_id"];
} else {
$c_id = $page_id;
}
while (!$found) {
$pre_node = $this->lm_tree->fetchPredecessorNode($c_id, "pg");
$c_id = $pre_node["obj_id"];
$active = ilPageObject::_lookupActive($c_id, $this->lm->getType(), $this->lm_set->get("time_scheduled_page_activation"));
if ($pre_node["obj_id"] > 0 && ($ilUser->getId() == ANONYMOUS_USER_ID || $this->needs_to_be_purchased) && ($this->lm->getPublicAccessMode() == "selected" && !ilLMObject::_isPagePublic($pre_node["obj_id"]))) {
$found = false;
} else {
if ($pre_node["obj_id"] > 0 && !$active) {
// look, whether activation data should be shown
$act_data = ilPageObject::_lookupActivationData((int) $pre_node["obj_id"], $this->lm->getType());
if ($act_data["show_activation_info"] && ilUtil::now() < $act_data["activation_start"]) {
$found = true;
} else {
$found = false;
}
} else {
$found = true;
}
}
}
$ilBench->stop("ContentPresentation", "ilLMNavigation_fetchPredecessor");
$pre_str = $pre_node !== false ? $pre_node["obj_id"] . "_" . $pre_node["type"] . " -> " : "";
// determine target frame
$framestr = !empty($_GET["frame"]) ? "frame=" . $_GET["frame"] . "&" : "";
// Determine whether the view of a learning resource should
// be shown in the frameset of ilias, or in a separate window.
//$showViewInFrameset = $this->ilias->ini->readVariable("layout","view_target") == "frame";
$showViewInFrameset = true;
if ($pre_node != "") {
$ilBench->start("ContentPresentation", "ilLMNavigation_outputPredecessor");
// get page object
//$ilBench->start("ContentPresentation", "ilLMNavigation_getPageObject");
//$pre_page =& new ilLMPageObject($this->lm, $pre_node["obj_id"]);
//$pre_page->setLMId($this->lm->getId());
//$ilBench->stop("ContentPresentation", "ilLMNavigation_getPageObject");
// get presentation title
$ilBench->start("ContentPresentation", "ilLMNavigation_getPresentationTitle");
$prev_title = ilLMPageObject::_getPresentationTitle($pre_node["obj_id"], $this->lm->getPageHeader(), $this->lm->isActiveNumbering(), $this->lm_set->get("time_scheduled_page_activation"));
$prev_title = ilUtil::shortenText($prev_title, 50, true);
$prev_img = ilUtil::getImagePath("nav_arr_L.png", false, "output", $this->offlineMode());
if (!$this->lm->cleanFrames()) {
$prev_href = $this->getLink($this->lm->getRefId(), "layout", $pre_node["obj_id"], $_GET["frame"]);
$prev_target = "";
} else {
if ($showViewInFrameset && !$this->offlineMode()) {
$prev_href = $this->getLink($this->lm->getRefId(), "layout", $pre_node["obj_id"]);
$prev_target = 'target="' . ilFrameTargetInfo::_getFrame("MainContent") . '" ';
} else {
$prev_href = $this->getLink($this->lm->getRefId(), "layout", $pre_node["obj_id"]);
$prev_target = 'target="_top" ';
}
}
if (($ilUser->getId() == ANONYMOUS_USER_ID || $this->needs_to_be_purchased) && ($this->lm->getPublicAccessMode() == 'selected' && !ilLMObject::_isPagePublic($pre_node["obj_id"]))) {
$output = $this->lng->txt("msg_page_not_public");
}
$ilBench->stop("ContentPresentation", "ilLMNavigation_getPresentationTitle");
$this->tpl->setCurrentBlock("ilLMNavigation_Prev");
$this->tpl->setVariable("IMG_PREV", $prev_img);
$this->tpl->setVariable("HREF_PREV", $prev_href);
$this->tpl->setVariable("FRAME_PREV", $prev_target);
$this->tpl->setVariable("TXT_PREV", $prev_title);
$this->tpl->setVariable("ALT_PREV", $this->lng->txt("previous"));
$this->tpl->setVariable("SPACER_PREV", $this->offlineMode() ? "images/spacer.png" : ilUtil::getImagePath("spacer.png"));
$this->tpl->setVariable("PREV_ACC_KEY", ilAccessKeyGUI::getAttribute(ilAccessKey::PREVIOUS));
$this->tpl->parseCurrentBlock();
$this->tpl->setCurrentBlock("ilLMNavigation_Prev2");
$this->tpl->setVariable("IMG_PREV2", $prev_img);
$this->tpl->setVariable("HREF_PREV2", $prev_href);
$this->tpl->setVariable("FRAME_PREV2", $prev_target);
$this->tpl->setVariable("TXT_PREV2", $prev_title);
$this->tpl->setVariable("ALT_PREV2", $this->lng->txt("previous"));
$this->tpl->setVariable("SPACER_PREV2", $this->offlineMode() ? "images/spacer.png" : ilUtil::getImagePath("spacer.png"));
$this->tpl->parseCurrentBlock();
$ilBench->stop("ContentPresentation", "ilLMNavigation_outputPredecessor");
}
if ($succ_node != "") {
$ilBench->start("ContentPresentation", "ilLMNavigation_outputSuccessor");
// get presentation title
$ilBench->start("ContentPresentation", "ilLMNavigation_getPresentationTitle");
$succ_title = ilLMPageObject::_getPresentationTitle($succ_node["obj_id"], $this->lm->getPageHeader(), $this->lm->isActiveNumbering(), $this->lm_set->get("time_scheduled_page_activation"));
$succ_title = ilUtil::shortenText($succ_title, 50, true);
$succ_img = ilUtil::getImagePath("nav_arr_R.png", false, "output", $this->offlineMode());
if (!$this->lm->cleanFrames()) {
$succ_href = $this->getLink($this->lm->getRefId(), "layout", $succ_node["obj_id"], $_GET["frame"]);
$succ_target = "";
} else {
if ($showViewInFrameset && !$this->offlineMode()) {
$succ_href = $this->getLink($this->lm->getRefId(), "layout", $succ_node["obj_id"]);
$succ_target = ' target="' . ilFrameTargetInfo::_getFrame("MainContent") . '" ';
} else {
$succ_href = $this->getLink($this->lm->getRefId(), "layout", $succ_node["obj_id"]);
$succ_target = ' target="_top" ';
}
}
if (($ilUser->getId() == ANONYMOUS_USER_ID || $this->needs_to_be_purchased) && ($this->lm->getPublicAccessMode() == 'selected' && !ilLMObject::_isPagePublic($pre_node["obj_id"]))) {
$output = $this->lng->txt("msg_page_not_public");
}
$ilBench->stop("ContentPresentation", "ilLMNavigation_getPresentationTitle");
$this->tpl->setCurrentBlock("ilLMNavigation_Next");
$this->tpl->setVariable("IMG_SUCC", $succ_img);
$this->tpl->setVariable("HREF_SUCC", $succ_href);
$this->tpl->setVariable("FRAME_SUCC", $succ_target);
$this->tpl->setVariable("TXT_SUCC", $succ_title);
$this->tpl->setVariable("ALT_SUCC", $this->lng->txt("next"));
$this->tpl->setVariable("SPACER_SUCC", $this->offlineMode() ? "images/spacer.png" : ilUtil::getImagePath("spacer.png"));
$this->tpl->setVariable("NEXT_ACC_KEY", ilAccessKeyGUI::getAttribute(ilAccessKey::NEXT));
$this->tpl->parseCurrentBlock();
$this->tpl->setCurrentBlock("ilLMNavigation_Next2");
$this->tpl->setVariable("IMG_SUCC2", $succ_img);
$this->tpl->setVariable("HREF_SUCC2", $succ_href);
$this->tpl->setVariable("FRAME_SUCC2", $succ_target);
$this->tpl->setVariable("TXT_SUCC2", $succ_title);
$this->tpl->setVariable("ALT_SUCC2", $this->lng->txt("next"));
$this->tpl->setVariable("SPACER_SUCC2", $this->offlineMode() ? "images/spacer.png" : ilUtil::getImagePath("spacer.png"));
$this->tpl->parseCurrentBlock();
$ilBench->stop("ContentPresentation", "ilLMNavigation_outputSuccessor");
}
$ilBench->stop("ContentPresentation", "ilLMNavigation");
}
/**
* Is node visible for the learner
*
* @param mixed $a_node node object/array
* @return boolean node visible true/false
*/
static function _isNodeVisible($a_node)
{
include_once "./Services/COPage/classes/class.ilPageObject.php";
if ($a_node["type"] != "pg") {
return true;
}
$lm_set = new ilSetting("lm");
$active = ilPageObject::_lookupActive($a_node["child"], "lm", $lm_set->get("time_scheduled_page_activation"));
if (!$active) {
$act_data = ilPageObject::_lookupActivationData((int) $a_node["child"], "lm");
if ($act_data["show_activation_info"] && ilUtil::now() < $act_data["activation_start"]) {
return true;
} else {
return false;
}
} else {
return true;
}
}
function isVisible($a_id, $a_type)
{
include_once "./Services/COPage/classes/class.ilPageObject.php";
$active = ilPageObject::_lookupActive($a_id, $this->lm_obj->getType(), $this->lm_set->get("time_scheduled_page_activation"));
if (!$active && $a_type == "pg") {
$act_data = ilPageObject::_lookupActivationData((int) $a_id, $this->lm_obj->getType());
if ($act_data["show_activation_info"] && ilUtil::now() < $act_data["activation_start"]) {
return true;
} else {
return false;
}
} else {
return true;
}
}
