class.ilBadgeProfileGUI.php

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<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */
include_once "Services/Badge/classes/class.ilBadgeHandler.php";
    
class ilBadgeProfileGUI
{
    protected $ctrl;

    protected $lng;

    protected $tpl;

    protected $tabs;

    protected $user;


    public function __construct()
    {
        global $DIC;

        $this->ctrl = $DIC->ctrl();
        $this->lng = $DIC->language();
        $this->tpl = $DIC["tpl"];
        $this->tabs = $DIC->tabs();
        $this->user = $DIC->user();
    }

    const BACKPACK_EMAIL = "badge_mozilla_bp";
    
    public function executeCommand()
    {
        $ilCtrl = $this->ctrl;
        $lng = $this->lng;
        $tpl = $this->tpl;
        
        $lng->loadLanguageModule("badge");
        
        $tpl->setTitle($lng->txt("obj_bdga"));
        $tpl->setTitleIcon(ilUtil::getImagePath("icon_bdga.svg"));
                                
        switch ($ilCtrl->getNextClass()) {
            default:
                $this->setTabs();
                $cmd = $ilCtrl->getCmd("listBadges");
                $this->$cmd();
                break;
        }
    }
    
    protected function setTabs()
    {
        $ilTabs = $this->tabs;
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;

        if (ilBadgeHandler::getInstance()->isObiActive()) {
            $ilTabs->addTab(
                "ilias_badges",
                $lng->txt("badge_personal_badges"),
                $ilCtrl->getLinkTarget($this, "listBadges")
            );

            $ilTabs->addTab(
                "backpack_badges",
                $lng->txt("badge_backpack_list"),
                $ilCtrl->getLinkTarget($this, "listBackpackGroups")
            );
        }
    }
    
    
    //
    // list
    //
    
    protected function getSubTabs($a_active)
    {
        $ilTabs = $this->tabs;
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;

        if (ilBadgeHandler::getInstance()->isObiActive()) {
            $ilTabs->addSubTab(
                "list",
                $lng->txt("badge_profile_view"),
                $ilCtrl->getLinkTarget($this, "listBadges")
            );
            $ilTabs->addSubTab(
                "manage",
                $lng->txt("badge_profile_manage"),
                $ilCtrl->getLinkTarget($this, "manageBadges")
            );
            $ilTabs->activateTab("ilias_badges");
            $ilTabs->activateSubTab($a_active);
        } else {
            $ilTabs->addTab(
                "list",
                $lng->txt("badge_profile_view"),
                $ilCtrl->getLinkTarget($this, "listBadges")
            );
            $ilTabs->addTab(
                "manage",
                $lng->txt("badge_profile_manage"),
                $ilCtrl->getLinkTarget($this, "manageBadges")
            );
            $ilTabs->activateTab($a_active);
        }
    }
    
    protected function listBadges()
    {
        $tpl = $this->tpl;
        $ilUser = $this->user;
            
        $this->getSubTabs("list");
        
        $data = array();
        
        // see ilBadgePersonalTableGUI::getItems()
        include_once "Services/Badge/classes/class.ilBadge.php";
        include_once "Services/Badge/classes/class.ilBadgeAssignment.php";
        include_once "Services/Badge/classes/class.ilBadgeRenderer.php";
        foreach (ilBadgeAssignment::getInstancesByUserId($ilUser->getId()) as $ass) {
            $badge = new ilBadge($ass->getBadgeId());
            
            $data[] = array(
                "id" => $badge->getId(),
                "title" => $badge->getTitle(),
                "description" => $badge->getDescription(),
                "image" => $badge->getImagePath(),
                "issued_on" => $ass->getTimestamp(),
                "renderer" => new ilBadgeRenderer($ass)
            );
        }
        
        // :TODO:
        $data = ilUtil::sortArray($data, "issued_on", "desc", true);
        
        $tmpl = new ilTemplate("tpl.badge_backpack.html", true, true, "Services/Badge");

        ilDatePresentation::setUseRelativeDates(false);

        foreach ($data as $badge) {
            $tmpl->setCurrentBlock("badge_bl");
            $tmpl->setVariable("BADGE_TITLE", $badge["title"]);
            // $tmpl->setVariable("BADGE_DESC", $badge["description"]); :TODO:
            $tmpl->setVariable("BADGE_IMAGE", $badge["image"]);
            $tmpl->setVariable("BADGE_CRITERIA", $badge["renderer"]->getHref());
            $tmpl->setVariable("BADGE_DATE", ilDatePresentation::formatDate(new ilDateTime($badge["issued_on"], IL_CAL_UNIX)));
            $tmpl->parseCurrentBlock();
        }

        $tpl->setContent($tmpl->get());
    }
    
    protected function manageBadges()
    {
        $tpl = $this->tpl;
            
        $this->getSubTabs("manage");
        
        include_once "Services/Badge/classes/class.ilBadgePersonalTableGUI.php";
        $tbl = new ilBadgePersonalTableGUI($this, "manageBadges");
        
        $tpl->setContent($tbl->getHTML());
    }
    
    protected function applyFilter()
    {
        include_once "Services/Badge/classes/class.ilBadgePersonalTableGUI.php";
        $tbl = new ilBadgePersonalTableGUI($this, "manageBadges");
        $tbl->resetOffset();
        $tbl->writeFilterToSession();
        $this->manageBadges();
    }
    
    protected function resetFilter()
    {
        include_once "Services/Badge/classes/class.ilBadgePersonalTableGUI.php";
        $tbl = new ilBadgePersonalTableGUI($this, "manageBadges");
        $tbl->resetOffset();
        $tbl->resetFilter();
        $this->manageBadges();
    }
    
    protected function getMultiSelection()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        $ilUser = $this->user;
        
        $ids = $_POST["badge_id"];
        if (!$ids && is_numeric($_GET["badge_id"])) {
            $ids = array($_GET["badge_id"]);
        }
        if (is_array($ids)) {
            $res = array();
            include_once "Services/Badge/classes/class.ilBadge.php";
            include_once "Services/Badge/classes/class.ilBadgeAssignment.php";
            foreach ($ids as $id) {
                $ass = new ilBadgeAssignment($id, $ilUser->getId());
                if ($ass->getTimestamp()) {
                    $res[] = $ass;
                }
            }
            
            return $res;
        } else {
            ilUtil::sendFailure($lng->txt("select_one"), true);
            $ilCtrl->redirect($this, "manageBadges");
        }
    }
    
    protected function activate()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        
        foreach ($this->getMultiSelection() as $ass) {
            // already active?
            if (!$ass->getPosition()) {
                $ass->setPosition(999);
                $ass->store();
            }
        }
        
        ilUtil::sendSuccess($lng->txt("settings_saved"), true);
        $ilCtrl->redirect($this, "manageBadges");
    }
    
    protected function deactivate()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        
        foreach ($this->getMultiSelection() as $ass) {
            // already inactive?
            if ($ass->getPosition()) {
                $ass->setPosition(null);
                $ass->store();
            }
        }
        
        ilUtil::sendSuccess($lng->txt("settings_saved"), true);
        $ilCtrl->redirect($this, "manageBadges");
    }
    
    
    //
    // (mozilla) backpack
    //
    
    protected function addToBackpackMulti()
    {
        $tpl = $this->tpl;
        $ilTabs = $this->tabs;
        $ilCtrl = $this->ctrl;
        $lng = $this->lng;
        
        $res = array();
        foreach ($this->getMultiSelection() as $ass) {
            $url = $this->prepareBadge($ass->getBadgeId());
            if ($url !== false) {
                $badge = new ilBadge($ass->getBadgeId());
                $titles[] = $badge->getTitle();
                $res[] = $url;
            }
        }
        
        // :TODO: use local copy instead?
        $tpl->addJavascript("https://backpack.openbadges.org/issuer.js", false);
            
        $tpl->addJavascript("Services/Badge/js/ilBadge.js");
        $tpl->addOnloadCode("il.Badge.publishMulti(['" . implode("','", $res) . "']);");
        
        $ilTabs->clearTargets();
        $ilTabs->setBackTarget(
            $lng->txt("back"),
            $ilCtrl->getLinkTarget($this, "manageBadges")
        );
        
        ilUtil::sendInfo(sprintf($lng->txt("badge_add_to_backpack_multi"), implode(", ", $titles)));
    }
    
    protected function setBackpackSubTabs()
    {
        $ilTabs = $this->tabs;
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        
        $ilTabs->addSubTab(
            "backpack_badges",
            $lng->txt("obj_bdga"),
            $ilCtrl->getLinkTarget($this, "listBackpackGroups")
        );
        
        $ilTabs->addSubTab(
            "backpack_settings",
            $lng->txt("settings"),
            $ilCtrl->getLinkTarget($this, "editSettings")
        );
        
        $ilTabs->activateTab("backpack_badges");
    }
    
    protected function listBackpackGroups()
    {
        $lng = $this->lng;
        $tpl = $this->tpl;
        $ilCtrl = $this->ctrl;
        $ilTabs = $this->tabs;
        
        if (!ilBadgeHandler::getInstance()->isObiActive()) {
            $ilCtrl->redirect($this, "listBadges");
        }
                
        $this->setBackpackSubTabs();
        $ilTabs->activateSubTab("backpack_badges");
        
        ilUtil::sendInfo($lng->txt("badge_backpack_gallery_info"));
                
        include_once "Services/Badge/classes/class.ilBadgeBackpack.php";
        $bp = new ilBadgeBackpack($this->getBackpackMail());
        $bp_groups = $bp->getGroups();

        if (!is_array($bp_groups)) {
            ilUtil::sendInfo(sprintf($lng->txt("badge_backpack_connect_failed"), $this->getBackpackMail()));
            return;
        } elseif (!sizeof($bp_groups)) {
            ilUtil::sendInfo($lng->txt("badge_backpack_no_groups"));
            return;
        }
        
        $tmpl = new ilTemplate("tpl.badge_backpack.html", true, true, "Services/Badge");

        $tmpl->setVariable("BACKPACK_TITLE", $lng->txt("badge_backpack_list"));
        
        ilDatePresentation::setUseRelativeDates(false);

        foreach ($bp_groups as $group_id => $group) {
            $bp_badges = $bp->getBadges($group_id);
            if (sizeof($bp_badges)) {
                foreach ($bp_badges as $idx => $badge) {
                    $tmpl->setCurrentBlock("badge_bl");
                    $tmpl->setVariable("BADGE_TITLE", $badge["title"]);
                    $tmpl->setVariable("BADGE_DESC", $badge["description"]);
                    $tmpl->setVariable("BADGE_IMAGE", $badge["image_url"]);
                    $tmpl->setVariable("BADGE_CRITERIA", $badge["criteria_url"]);
                    $tmpl->setVariable("BADGE_ISSUER", $badge["issuer_name"]);
                    $tmpl->setVariable("BADGE_ISSUER_URL", $badge["issuer_url"]);
                    $tmpl->setVariable("BADGE_DATE", ilDatePresentation::formatDate($badge["issued_on"]));
                    $tmpl->parseCurrentBlock();
                }
            }

            $tmpl->setCurrentBlock("group_bl");
            $tmpl->setVariable("GROUP_TITLE", $group["title"]);
            $tmpl->parseCurrentBlock();
        }

        $tpl->setContent($tmpl->get());
    }
    
    protected function prepareBadge($a_badge_id)
    {
        $ilUser = $this->user;
        
        // check if current user has given badge
        include_once "Services/Badge/classes/class.ilBadgeAssignment.php";
        $ass = new ilBadgeAssignment($a_badge_id, $ilUser->getId());
        if ($ass->getTimestamp()) {
            $url = null;
            try {
                $url = $ass->getStaticUrl();
            } catch (Exception $ex) {
            }
            if ($url) {
                return $url;
            }
        }
        
        return false;
    }
    
    protected function addToBackpack()
    {
        $ilCtrl = $this->ctrl;
        
        if (!$ilCtrl->isAsynch() ||
            !ilBadgeHandler::getInstance()->isObiActive()) {
            return false;
        }
        
        $res = new stdClass();
        
        $url = false;
        $badge_id = (int) $_GET["id"];
        if ($badge_id) {
            $url = $this->prepareBadge($badge_id);
        }
        
        if ($url !== false) {
            $res->error = false;
            $res->url = $url;
        } else {
            $res->error = true;
            $res->message = "missing badge id";
        }
        
        echo json_encode($res);
        exit();
    }
    
    
    //
    // settings
    //
    
    protected function getBackpackMail()
    {
        $ilUser = $this->user;
        
        $mail = $ilUser->getPref(self::BACKPACK_EMAIL);
        if (!$mail) {
            $mail = $ilUser->getEmail();
        }
        return $mail;
    }
    
    protected function initSettingsForm()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        
        include_once "Services/Form/classes/class.ilPropertyFormGUI.php";
        $form = new ilPropertyFormGUI();
        $form->setFormAction($ilCtrl->getFormAction($this, "saveSettings"));
        $form->setTitle($lng->txt("settings"));
        
        $email = new ilEMailInputGUI($lng->txt("badge_backpack_email"), "email");
        // $email->setRequired(true);
        $email->setInfo($lng->txt("badge_backpack_email_info"));
        $email->setValue($this->getBackpackMail());
        $form->addItem($email);
        
        $form->addCommandButton("saveSettings", $lng->txt("save"));
        
        return $form;
    }
    
    protected function editSettings(ilPropertyFormGUI $a_form = null)
    {
        $tpl = $this->tpl;
        $ilCtrl = $this->ctrl;
        $ilTabs = $this->tabs;
        
        if (!ilBadgeHandler::getInstance()->isObiActive()) {
            $ilCtrl->redirect($this, "listBadges");
        }
        
        $this->setBackpackSubTabs();
        $ilTabs->activateSubTab("backpack_settings");
    
        if (!$a_form) {
            $a_form = $this->initSettingsForm();
        }
        
        $tpl->setContent($a_form->getHTML());
    }
    
    protected function saveSettings()
    {
        $ilUser = $this->user;
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        
        $form = $this->initSettingsForm();
        if ($form->checkInput()) {
            $new_email = $form->getInput("email");
            $old_email = $this->getBackpackMail();
            
            ilObjUser::_writePref($ilUser->getId(), self::BACKPACK_EMAIL, $new_email);
            
            // if email was changed: delete badge files
            if ($new_email != $old_email) {
                include_once "Services/Badge/classes/class.ilBadgeAssignment.php";
                ilBadgeAssignment::clearBadgeCache($ilUser->getId());
            }
                    
            ilUtil::sendSuccess($lng->txt("settings_saved"), true);
            $ilCtrl->redirect($this, "editSettings");
        }
        
        $form->setValuesByPost();
        $this->editSettings($form);
    }
}