FEATURE: change directory structure

app/CMS/Contracts/AppHandler.php

@@ -0,0 +1,97 @@
+<?php
+namespace App\CMS\Handlers\Contracts;
+
+use App\Http\Requests\Request;
+use App\Models\Content\Content;
+
+interface AppHandler extends BaseModuleHandler
+{
+    /**
+     * Render given module into visitor area.
+     *
+     * @param Content $content    DB model from table contents
+     * @param array   $parameters parameters used for modifications/custom settings of given model
+     *
+     * @return mixed
+     */
+    public function render(Content $content, $parameters);
+
+    public static function getHistoryHandler();
+
+    /**
+     * Load some extra data for content management form?
+     *
+     * @param Content $content
+     *
+     * @return mixed
+     */
+    public static function loadExtraData(Content $content);
+
+    /**
+     * Save module-specific values into database
+     *
+     * @param Content $content
+     * @param Request $request
+     *
+     * @return mixed
+     * @internal param Widget $widget
+     */
+    public static function createNew(Content &$content, Request $request);
+
+    /**
+     * Method used for editing existing content page.
+     *
+     * Reason why it is separated from createNew() method is simple - we need to save history of changes.
+     *
+     * @param Content $content
+     * @param Request $request
+     *
+     * @param         $revisionID string ID of revision used
+     *
+     * @return int number of edited fields
+     */
+    public static function edit(Content &$content, Request $request, $revisionID);
+
+    /**
+     * Method called right after content page is marked as deleted
+     *
+     * This method is supposed to clean after "deleted" page.
+     *
+     * @param Content $content
+     *
+     * @return mixed
+     */
+    public static function delete(Content $content);
+
+    /**
+     * Getter for section names in creating/editing content resource
+     *
+     * @return mixed
+     */
+    public static function getExtendedFormSections();
+
+    /**
+     * Getter for views used in extended part of form for creating new content
+     *
+     * This method should return pairs <section, view-name>. View is returned only as name in plain text
+     *
+     * @return array of views/templates/html codes divided into section
+     */
+    public static function getExtendedFormInputsCreate();
+
+    /**
+     * Getter for extended part of form for editing existing content
+     *
+     * Basically, this method may be
+     *
+     * @return array of views/templates/html codes divided into section
+     */
+    public static function getExtendedFormInputsEdit();
+
+    /**
+     * Does this module support categories?
+     *
+     * @return boolean
+     */
+    public static function supportCategories();
+}

app/CMS/Contracts/BaseModuleHandler.php

@@ -0,0 +1,25 @@
+<?php
+namespace App\CMS\Handlers\Contracts;
+
+use App\Models\User;
+
+interface BaseModuleHandler
+{
+    /**
+     * Register admin menu (or multiple ones)
+     *
+     * This cannot be in ServiceProvider because Session is started at middleware. And ServiceProvider is called before
+     * starting any middleware..
+     *
+     * @param User $user model of logged user
+     */
+    public static function registerAdminMenu(User $user);
+
+    /**
+     * Install module.
+     *
+     * This method is called after inserting info about module into database. It can be called only using Artisan in
+     * CLI.
+     */
+    public static function install();
+}

app/CMS/Contracts/Content/ContentTitles.php

@@ -0,0 +1,40 @@
+<?php
+namespace App\CMS\Handlers\Contracts;
+
+use App\Models\Content\Content;
+
+/**
+ * Interface ContentTitles
+ *
+ * Classes which implement this interface get the ability to rewrite default text on edit/create/overview of content
+ * page.
+ *
+ * @package App\CMS\Handlers\Contracts
+ */
+interface ContentTitles
+{
+    /**
+     * Get translated title for pages overview of given type.
+     *
+     * This value is used for rendering list of all content pages of given type in administration.
+     *
+     * @return string
+     */
+    public static function getOverviewTitle();
+
+    /**
+     * Title displayed above for for creating new content page
+     *
+     * @return string
+     */
+    public static function getCreateNewTitle();
+
+    /**
+     * Title for form displayed for editin content page
+     *
+     * @param Content $content
+     *
+     * @return mixed
+     */
+    public static function getEditTitle(Content $content);
+}

app/CMS/Contracts/Content/HistoryHandler.php

@@ -0,0 +1,9 @@
+<?php
+namespace App\CMS\Handlers\Contracts;
+
+interface HistoryHandler
+{
+    public static function parseColumnName($name);
+
+    public static function parseChangedValue($changeset);
+}

app/CMS/Contracts/Search/SearchHandler.php

@@ -0,0 +1,17 @@
+<?php
+namespace App\CMS\Handlers\Contracts;
+
+interface SearchHandler {
+    public function getId();
+
+    public function getName();
+
+    /**
+     * Search for given patttern/term
+     *
+     * @param string $term searched word
+     *
+     * @return array list of found objects
+     */
+    public function search($term);
+}

app/CMS/Contracts/Search/SearchPresenterHandler.php

@@ -0,0 +1,14 @@
+<?php
+namespace App\CMS\Handlers\Contracts;
+
+interface SearchPresenterHandler
+{
+    /**
+     * Method for rendering list of found results
+     *
+     * @param $foundItems
+     *
+     * @return mixed
+     */
+    public function render($foundItems);
+}

app/CMS/Contracts/TemplateHandler.php

@@ -0,0 +1,64 @@
+<?php
+namespace App\CMS\Handlers\Contracts;
+
+use App\Http\Requests\Request;
+use App\Models\Content\Content;
+use App\Models\Module;
+
+/**
+ * Interface TemplateHandler
+ *
+ * Inerface used for registering template into CMS core.
+ *
+ * @package App\CMS\Handlers\Contracts
+ */
+interface TemplateHandler extends BaseModuleHandler
+{
+    /**
+     * Uninstall template
+     *
+     * Delete some items in database, delete files etc.
+     *
+     * @param Module $template
+     */
+    public static function uninstall(Module $template);
+
+    /**
+     * Get list of registered templates and supported modules.
+     *
+     * Returned array is expected to be array of arrays with following items: module, namespace and templateName.
+     * Example:
+     * return [
+     *    ['module' => 'Article', 'templateName' => 'article::template.name']
+     * ];
+     *
+     * When no "namespace" is specified, value strtolower(module) is used instaed.
+     *
+     * @return array
+     */
+    public static function getPublicTemplatePaths();
+
+    /**
+     * Prepare Content object to be rendered using Blade template
+     *
+     * @param Content $content
+     */
+    public static function beforeRender(Content & $content);
+
+    /**
+     * Modify input data into format which can be understood by edit template
+     *
+     * @param Content $content
+     */
+    public static function beforePopulatingEditForm(Content & $content);
+
+    /**
+     * Slightly modify Content object before saving into database.
+     *
+     * This way we can do almost whatever we want - even in template
+     *
+     * @param Content $content
+     * @param Request $request
+     */
+    public static function beforeSave(Content & $content, Request $request);
+}

app/CMS/Contracts/Widgets/AdminDashboardWidget.php

@@ -0,0 +1,12 @@
+<?php
+namespace App\CMS\Contracts\Widgets;
+
+interface AdminDashboardWidget extends PublicWidget
+{
+    /**
+     * Getter for list of all roles which are allowed to display the widget
+     *
+     * @return array
+     */
+    public static function renderForRoles();
+}

app/CMS/Contracts/Widgets/InstallableWidget.php

@@ -0,0 +1,17 @@
+<?php
+namespace App\CMS\Contracts\Widgets;
+
+interface InstallableWidget extends PublicWidget  {
+
+    /**
+     * Function for installing given widget
+     *
+     * @return mixed
+     */
+    public static function install();
+
+    /**
+     * Function for uninstalling widget
+     */
+    public static function uninstall();
+}

app/CMS/Contracts/Widgets/MenuExtensionHandler.php

@@ -0,0 +1,15 @@
+<?php
+namespace App\CMS\Widgets\Contracts;
+
+interface MenuExtensionHandler {
+
+    public function getName();
+    public function getDescription();
+    public function getId();
+    
+    public function getPossibleValues();
+
+    public function getFormExtensionTemplate();
+
+    public function save();
+}

app/CMS/Contracts/Widgets/PublicWidget.php

@@ -0,0 +1,36 @@
+<?php
+namespace App\CMS\Contracts\Widgets;
+
+use App\Models\Widgets\Widget;
+
+interface PublicWidget
+{
+    /**
+     * Name getter
+     *
+     * @return string
+     */
+    public static function getName();
+
+    /**
+     * Getter for description
+     *
+     * @return string
+     */
+    public static function getDescription();
+
+    /**
+     * Getter for presenter/renderer of this widget
+     *
+     * @return WidgetRenderer
+     */
+    public static function getPresenter();
+
+    /**
+     * @param Widget    $widget
+     * @param \stdClass $data
+     *
+     * @return mixed
+     */
+    public static function save(Widget $widget, \stdClass $data);
+}

app/CMS/Contracts/Widgets/WidgetRenderer.php

@@ -0,0 +1,37 @@
+<?php
+namespace App\CMS\Contracts\Widgets;
+
+use App\Models\Widgets\Widget;
+use App\Models\Widgets\WidgetType;
+
+interface WidgetRenderer
+{
+    /**
+     * Method used for displaying widget.
+     *
+     * This method renders some HTML code for displaying.
+     *
+     * @param Widget $settings
+     *
+     * @return mixed
+     */
+    public static function render(Widget $settings);
+
+    /**
+     * Display form for creating new instance of widget
+     *
+     * @param WidgetType $type
+     *
+     * @return mixed
+     */
+    public static function renderAddForm(WidgetType $type);
+
+    /**
+     * Display form for editing already existing widget
+     *
+     * @param Widget $widget
+     *
+     * @return mixed
+     */
+    public static function renderEditForm(Widget $widget);
+}

app/CMS/CustomFields/BaseField.php

@@ -0,0 +1,6 @@
+<?php
+namespace App\CMS\CustomFields;
+
+class BaseField {
+
+}

app/CMS/CustomFields/Date.php

@@ -0,0 +1,6 @@
+<?php
+namespace App\CMS\CustomFields;
+
+class Date extends BaseField {
+
+}

app/CMS/CustomFields/Number.php

@@ -0,0 +1,6 @@
+<?php
+namespace App\CMS\CustomFields;
+
+class Number extends BaseField {
+
+}

app/CMS/CustomFields/SelectboxList.php

@@ -0,0 +1,6 @@
+<?php
+namespace App\CMS\CustomFields;
+
+class SelectboxList extends BaseField {
+
+}

app/CMS/CustomFields/String.php

@@ -0,0 +1,6 @@
+<?php
+namespace App\CMS\CustomFields;
+
+class String extends BaseField {
+
+}

app/CMS/Enumerations/ActionLogTypes.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\ActionLogType;
+
+class ActionLogTypes extends BaseEnumeration
+{
+    /**
+     * Init list of all action log types
+     *
+     * @throws Exceptions\EnumerationExistsException
+     */
+    protected static function init()
+    {
+        $types = ActionLogType::all(['id', 'name']);
+
+        foreach ($types as $type) {
+            self::push($type->id, $type->name);
+        }
+    }
+}

app/CMS/Enumerations/ActionLogTypesForLogger.php

@@ -0,0 +1,16 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\ActionLog\ActionLogType;
+
+class ActionLogTypesForLogger extends BaseEnumeration
+{
+    protected static function init()
+    {
+        $types = ActionLogType::all(['string_id', 'id']);
+
+        foreach ($types as $type) {
+            self::push($type->string_id, $type->id);
+        }
+    }
+}

app/CMS/Enumerations/BaseEnumeration.php

@@ -0,0 +1,120 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\CMS\Exceptions\Enumerations\EnumerationExistsException;
+
+abstract class BaseEnumeration
+{
+    protected static $initiliazed = [];
+    public static $items = [];
+    const ORDER_BY_KEY = 1;
+    const ORDER_BY_KEY_DESC = 2;
+    const ORDER_BY_TEXT = 4;
+    const ORDER_BY_TEXT_DESC = 8;
+
+    /**
+     * Init enumerations
+     */
+    protected static function init()
+    {
+        $className = get_called_class();
+
+        if (!in_array($className, self::$initiliazed)) {
+
+            // try to call init() method
+            if (method_exists($className, 'init')) {
+                $className::init();
+            }
+
+            // it can happen that even after init no enumerations are available
+            if (empty(self::$items[$className])) {
+                self::$items[$className] = [];
+            }
+
+            self::$initiliazed[] = $className;
+        }
+    }
+
+    /**
+     * Add new item into enumeration
+     *
+     * @param            $key
+     * @param            $translation
+     * @param bool|false $overwrite
+     *
+     * @throws EnumerationExistsException
+     */
+    public static function push($key, $translation, $overwrite = false)
+    {
+        // item exists and we do not want to overwrite items
+        if (!$overwrite && !is_null($key) && isset(self::$items[get_called_class()][$key])) {
+            throw new EnumerationExistsException(get_called_class() . ': ' . $key . ' already in ' . $translation);
+        }
+
+        // if given collection does not exists, create empty one
+        if (!isset(self::$items[get_called_class()])) {
+            self::$items[get_called_class()] = [];
+        }
+
+        // add to collection
+        self::$items[get_called_class()][$key] = trans($translation);
+    }
+
+    /**
+     * Return count of all items in collection
+     *
+     * @return int
+     */
+    public static function getCount()
+    {
+        return count(self::getWithTranslations());
+    }
+
+    /**
+     * Getter for all enumeration items in iven collection.
+     *
+     * Return value is associative array indexed by item "name". Value of each field is its translation (translation
+     * string, e.g. admin/mainMenu.something)
+     *
+     * @param string $orderBy
+     *
+     * @return array
+     */
+    public static function getWithTranslations($orderBy = self::ORDER_BY_KEY)
+    {
+        // if not initialized yet, init this enumerration
+        if (!in_array(get_called_class(), self::$initiliazed)) {
+            self::init();
+        }
+
+        $items = self::$items[get_called_class()];
+
+        // order results
+        switch ($orderBy) {
+            case self::ORDER_BY_KEY:
+                ksort($items);
+                break;
+            case self::ORDER_BY_KEY_DESC:
+                krsort($items);
+                break;
+            case self::ORDER_BY_TEXT:
+                sort($items);
+                break;
+            case self::ORDER_BY_TEXT_DESC:
+                rsort($items);
+                break;
+        }
+
+        return $items;
+    }
+
+    /**
+     * Getter for list of all enumeration items.
+     *
+     * @return array
+     */
+    public static function getSimple()
+    {
+        return array_keys(self::getWithTranslations());
+    }
+}

app/CMS/Enumerations/ContentStatuses.php

@@ -0,0 +1,20 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\Content\Content;
+
+class ContentStatuses extends BaseEnumeration
+{
+    protected static function init()
+    {
+        $roles = [
+            Content::STATUS_DRAFT     => 'admin/contents.status_' . Content::STATUS_DRAFT,
+            Content::STATUS_PROTECTED => 'admin/contents.status_' . Content::STATUS_PROTECTED,
+            Content::STATUS_PUBLIC    => 'admin/contents.status_' . Content::STATUS_PUBLIC
+        ];
+
+        foreach ($roles as $role => $translation) {
+            self::push($role, $translation);
+        }
+    }
+}

app/CMS/Enumerations/CustomFieldResources.php

@@ -0,0 +1,20 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\CustomFieldResource;
+
+class CustomFieldResources extends BaseEnumeration
+{
+    public static $items = [];
+
+    public static function init()
+    {
+        // load items from database
+        $types = CustomFieldResource::all(['id', 'name']);
+
+        // push items into collection
+        foreach ($types as $type) {
+            self::push($type->id, $type->name);
+        }
+    }
+}

app/CMS/Enumerations/CustomFieldTypes.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\CustomFieldType;
+
+class CustomFieldTypes extends BaseEnumeration
+{
+    public static $items = [];
+
+    public static function init()
+    {
+
+        // load items from database
+        $types = CustomFieldType::all(['id', 'name']);
+
+        // push items into collection
+        foreach ($types as $type) {
+            self::push($type->id, $type->name);
+        }
+    }
+}

app/CMS/Enumerations/ModuleNamesWithIds.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\Module;
+
+class ModuleNamesWithIds extends BaseEnumeration
+{
+    /**
+     * Init list of all installed modules
+     *
+     * @throws Exceptions\EnumerationExistsException
+     */
+    protected static function init()
+    {
+        $modules = Module::all(['id', 'name']);
+
+        foreach ($modules as $module) {
+            self::push($module->id, $module->name);
+        }
+    }
+}

app/CMS/Enumerations/Modules.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\Module;
+
+class Modules extends BaseEnumeration
+{
+    /**
+     * Init list of all installed modules
+     *
+     * @throws Exceptions\EnumerationExistsException
+     */
+    protected static function init()
+    {
+        $modules = Module::all(['handler', 'name']);
+
+        foreach ($modules as $module) {
+            self::push($module->handler, $module->name);
+        }
+    }
+}

app/CMS/Enumerations/ModulesHandlerToId.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\Module;
+
+class ModulesHandlerToId extends BaseEnumeration
+{
+    /**
+     * Init list of all installed modules
+     *
+     * @throws Exceptions\EnumerationExistsException
+     */
+    protected static function init()
+    {
+        $modules = Module::all(['handler', 'id']);
+
+        foreach ($modules as $module) {
+            self::push($module->handler, $module->id);
+        }
+    }
+}

app/CMS/Enumerations/TemplatePaths.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: michal
+ * Date: 18.2.16
+ * Time: 10:33
+ */
+
+namespace App\CMS\Enumerations;
+
+use App\Models\TemplatePath;
+
+class TemplatePaths extends BaseEnumeration
+{
+    protected static function init()
+    {
+        $paths = TemplatePath::all(['id', 'path']);
+
+        foreach ($paths as $path) {
+            self::push($path->id, $path->path);
+        }
+    }
+}

app/CMS/Enumerations/TemplatePathsHumanReadable.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: michal
+ * Date: 18.2.16
+ * Time: 10:33
+ */
+
+namespace App\CMS\Enumerations;
+
+use App\Models\TemplatePath;
+
+class TemplatePathsHumanReadable extends BaseEnumeration
+{
+    protected static function init()
+    {
+        $paths = TemplatePath::all(['id', 'name']);
+
+        foreach ($paths as $path) {
+            self::push($path->id, $path->name);
+        }
+    }
+}

app/CMS/Enumerations/TemplatePathsHumanReadableRootOnly.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: michal
+ * Date: 18.2.16
+ * Time: 10:33
+ */
+
+namespace App\CMS\Enumerations;
+
+use App\Models\TemplatePath;
+
+class TemplatePathsHumanReadableRootOnly extends BaseEnumeration
+{
+    protected static function init()
+    {
+        $paths = TemplatePath::where('parent_id', null)
+                             ->select(['id', 'name'])
+                             ->get();
+
+        foreach ($paths as $path) {
+            self::push($path->id, $path->name);
+        }
+    }
+}

app/CMS/Enumerations/Templates.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: michal
+ * Date: 18.2.16
+ * Time: 15:50
+ */
+
+namespace App\CMS\Enumerations;
+
+use App\Models\Template;
+
+class Templates extends BaseEnumeration
+{
+    protected static function init()
+    {
+        $templates = Template::all(['id', 'template_name']);
+
+        foreach ($templates as $template) {
+            self::push($template->id, $template->template_name);
+        }
+    }
+}

app/CMS/Enumerations/UserRoles.php

@@ -0,0 +1,20 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\User;
+
+class UserRoles extends BaseEnumeration
+{
+    public static function init()
+    {
+        $roles = [
+            User::ROLE_ADMIN   => 'admin/userManagement.role_' . User::ROLE_ADMIN,
+            User::ROLE_EDITOR  => 'admin/userManagement.role_' . User::ROLE_EDITOR,
+            User::ROLE_VISITOR => 'admin/userManagement.role_' . User::ROLE_VISITOR
+        ];
+
+        foreach ($roles as $role => $translation) {
+            self::push($role, $translation);
+        }
+    }
+}

app/CMS/Enumerations/UserStates.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: michal
+ * Date: 24.1.16
+ * Time: 23:20
+ */
+
+namespace App\CMS\Enumerations;
+
+use App\Models\User;
+
+class UserStates extends BaseEnumeration
+{
+    public static function init()
+    {
+        $items = [
+            User::STATE_BLOCKED => 'admin/userManagement.status_' . User::STATE_BLOCKED,
+            User::STATE_ACTIVE  => 'admin/userManagement.status_' . User::STATE_ACTIVE
+        ];
+
+        foreach ($items as $state => $translation) {
+            self::push($state, $translation);
+        }
+    }
+}

app/CMS/Enumerations/WidgetTypes.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\Widgets\WidgetType;
+
+class WidgetTypes extends BaseEnumeration
+{
+    /**
+     * Init list of all installed modules
+     *
+     * @throws Exceptions\EnumerationExistsException
+     */
+    protected static function init()
+    {
+        $widgets = WidgetType::all(['id', 'name']);
+
+        foreach ($widgets as $widget) {
+            self::push($widget->id, $widget->name);
+        }
+    }
+}

app/CMS/Enumerations/WidgetTypesWithHandlers.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\CMS\Enumerations;
+
+use App\Models\Widgets\WidgetType;
+
+class WidgetTypesWithHandlers extends BaseEnumeration
+{
+    /**
+     * Init list of all installed modules
+     *
+     * @throws Exceptions\EnumerationExistsException
+     */
+    protected static function init()
+    {
+        $modules = WidgetType::all(['handler', 'name']);
+
+        foreach ($modules as $module) {
+            self::push($module->handler, $module->name);
+        }
+    }
+}

app/CMS/Exceptions/Enumerations/EnumerationExistsException.php

@@ -0,0 +1,6 @@
+<?php
+namespace App\CMS\Exceptions\Enumerations;
+
+class EnumerationExistsException extends \Exception {
+
+}

app/CMS/Exceptions/Widgets/MissingParameterException.php

@@ -0,0 +1,14 @@
+<?php
+namespace App\CMS\Widgets\Exceptions;
+
+use Exception;
+
+class MissingParameterException extends \Exception
+{
+    public function __construct($message = "", $code = 0, Exception $previous = null)
+    {
+        $message = trans('admin/widgets.missingValue', ['field' => $message]);
+
+        parent::__construct($message, $code, $previous);
+    }
+}

app/CMS/Exceptions/Widgets/WidgetExistsException.php

@@ -0,0 +1,14 @@
+<?php
+namespace App\CMS\Widgets\Exceptions;
+
+use Exception;
+
+class WidgetExistsException extends \Exception
+{
+    public function __construct($message = "", $code = 0, Exception $previous = null)
+    {
+        $message = trans('admin/widgets.widgetExists', ['id' => $message]);
+
+        parent::__construct($message, $code, $previous);
+    }
+}

app/CMS/Handlers/BaseHandler.php

@@ -0,0 +1,123 @@
+<?php
+namespace App\CMS\Handlers;
+
+use App\CMS\Enumerations\TemplatePathsHumanReadableRootOnly;
+use App\CMS\Enumerations\WidgetTypes;
+use App\CMS\Handlers\Contracts\AppHandler;
+use App\CMS\Handlers\Contracts\BaseModuleHandler;
+use App\Models\User;
+
+abstract class BaseHandler implements BaseModuleHandler
+{
+    /**
+     * Register admin menu (or multiple ones)
+     *
+     * This cannot be in ServiceProvider because Session is started at middleware. And ServiceProvider is called before
+     * starting any middleware..
+     *
+     * @param User $user model of logged user
+     */
+    public static function registerAdminMenu(User $user)
+    {
+        $menu = \Menu::instance('mainMenu');
+        if (!is_null($menu)) {
+            // menus were already defined
+            return;
+        }
+
+        // create instance of main menu
+        \Menu::create('mainMenu', function ($menu) {
+            //            $menu->route('admin.dashboard', trans('admin/mainMenu.dashboard'), [], 10, ['icon' => 'fa fa-fw fa-dashboard']);
+
+            /**
+             * Content pages
+             *
+             * Submenus can be registered later
+             */
+            $menu->dropdown(trans('admin/mainMenu.contentPages'), function ($sub) {
+                $sub->addDivider(9999);
+                $sub->route('content.overview', trans('admin/mainMenu.contentPageOverview'), [], 10000, ['icon' => 'fa fa-fw fa-list']);
+            }, 20, ['icon' => 'fa fa-fw fa-database']);
+
+            /**
+             * File manager
+             */
+            $menu->route('upload.overview', trans('admin/mainMenu.fileManager'), [], 40, ['icon' => 'fa fa-fw fa-folder']);
+
+            /**
+             * Widgets and widget areas
+             */
+            $menu->dropdown(trans('admin/mainMenu.widgets'), function ($sub) {
+                // create list of all widget types
+                $widgets = WidgetTypes::getWithTranslations();
+
+                if (!empty($widgets)) {
+                    $sub->dropdown(trans('admin/mainMenu.newWidget'), function ($sub) use ($widgets) {
+                        $i = 1;
+                        foreach ($widgets as $type => $name) {
+                            $sub->route('widgets.new', $name, ['type' => $type], $i++);
+                        }
+                    }, 10, ['icon' => 'fa fa-fw fa-plus']);
+                }
+
+                $sub->route('widgets.overview', trans('admin/mainMenu.widgetsOverview'), [], 20, ['icon' => 'fa fa-fw fa-list']);
+
+                // menu for widget areas
+                $sub->dropdown(trans('admin/mainMenu.widgetAreas'), function ($sub) {
+                    $sub->route('widgetareas.new', trans('admin/mainMenu.newWidgetArea'), [], 1, ['icon' => 'fa fa-fw fa-plus']);
+                    $sub->route('widgetareas.overview', trans('admin/mainMenu.widgetAreaOverview'), [], 2, ['icon' => 'fa fa-fw fa-list']);
+                }, 50, ['icon' => 'fa fa-fw fa-object-group']);
+            }, 50, ['icon' => 'fa fa-fw fa-puzzle-piece']);
+
+            /**
+             * Divide system entries and other links in menu
+             */
+            $menu->addDivider(9999);
+
+            $menu->dropdown(trans('admin/mainMenu.system'), function ($sub) {
+
+                /**
+                 * User management
+                 */
+                $sub->dropdown(trans('admin/mainMenu.userManagement'), function ($sub) {
+                    $sub->route('users.new', trans('admin/mainMenu.newUser'), [], 10, ['icon' => 'fa fa-fw fa-user-plus']);
+                    $sub->route('users.overview', trans('admin/mainMenu.usersOverview'), [], 30, ['icon' => 'fa fa-fw fa-users']);
+                }, 20, ['icon' => 'fa fa-fw fa-users']);
+
+                /**
+                 * Templates
+                 */
+                $templatePaths = TemplatePathsHumanReadableRootOnly::getWithTranslations();
+                if (!empty($templatePaths)) {
+                    $sub->dropdown(trans('admin/mainMenu.templates'), function ($sub) use ($templatePaths) {
+                        $i = 1;
+                        foreach ($templatePaths as $id => $name) {
+                            $sub->route('templates.overview', $name, ['id' => $id], $i++);
+                        }
+                    }, 60, ['icon' => 'fa fa-fw fa-file-code-o']);
+                }
+
+
+
+                //            $menu->dropdown(trans('admin/mainMenu.customFields'), function ($sub) {
+                //                $sub->route('customfields.new', trans('admin/mainMenu.customFieldsNew'), [], 10, ['icon' => 'fa fa-fw fa-code']);
+                //                $sub->route('customfields.overview', trans('admin/mainMenu.customFieldsOverview'), [], 50, ['icon' => 'fa fa-fw fa-code-fork']);
+                //            }, 30, ['icon' => 'fa fa-fw fa-code']);
+
+                $sub->route('log.overview', trans('admin/mainMenu.actionLog'), [], 70, ['icon' => 'fa fa-fw fa-history']);
+                $sub->route('settings.overview', trans('admin/mainMenu.settings'), [], 80, ['icon' => 'fa fa-fw fa-gear']);
+            }, 10000, ['icon' => 'fa fa-fw fa-gears']);
+
+
+        });
+
+        // order
+
+        // create menu with user profile
+        \Menu::create('profileMenu', function ($menu) {
+            $menu->route('users.detail', trans('admin/userManagement.profile'), [], 10, ['icon' => 'fa fa-fw fa-user icon']);
+            $menu->addDivider(999);
+            $menu->route('logout', trans('admin/common.logout'), [], 1000, ['icon' => 'fa fa-fw fa-power-off icon']);
+        });
+    }
+}

app/CMS/Handlers/Handler.php

@@ -0,0 +1,81 @@
+<?php
+namespace App\CMS\Handlers;
+
+use App\CMS\Handlers\Contracts\AppHandler;
+use App\Http\Controllers\Controller;
+use App\Models\Content\Content;
+
+/**
+ * Class Handler
+ *
+ * Handler is a class which handles module-specific behaviour which cannot be done by module itself, resp. cannot be
+ * done by some abstract magic.
+ *
+ * @package App\CMS\Handlers\
+ */
+abstract class Handler extends BaseHandler implements AppHandler
+{
+    /**
+     * todo: Temporary method, will be implemented for each Handler
+     *
+     * @return bool
+     */
+    public static function supportCategories()
+    {
+        return true;
+    }
+
+    public static function getHistoryHandler()
+    {
+        return History::class;
+    }
+
+    /**
+     * Render given module into visitor area.
+     *
+     * @param Content $content    DB model from table contents
+     * @param array   $parameters parameters used for modifications/custom settings of given model
+     *
+     * @return mixed
+     */
+    public function render(Content $content, $parameters)
+    {
+        return Controller::VisitorsView($content->template, ['page' => $content, 'extra' => $parameters]);
+    }
+
+    public static function getExtendedFormSections()
+    {
+        return [
+            'basicInfo'   => trans('admin/contents.basicInfo'),
+            'meta'        => trans('admin/contents.metaOptions'),
+            'publication' => trans('admin/contents.publicationOptions'),
+            'appearance'  => trans('admin/contents.appearance'),
+            'files'       => trans('admin/contents.files')
+        ];
+    }
+
+    public static function getExtendedFormInputsCreate()
+    {
+        return [
+            'basicInfo'   => 'admin.content.formParts.basicInformation',
+            'meta'        => 'admin.content.formParts.metaInformation',
+            'publication' => 'admin.content.formParts.publicationSetup',
+            'appearance'  => 'admin.content.formParts.appearance',
+            'files'       => 'admin.content.formParts.files'
+        ];
+    }
+
+    public static function delete(Content $content)
+    {
+        // temporarily nothing to do
+    }
+
+    public static function loadExtraData(Content $content) {
+        // temporarily nothing to do
+    }
+
+    public static function getExtendedFormInputsEdit()
+    {
+        return self::getExtendedFormInputsCreate();
+    }
+}

app/CMS/Handlers/History.php

@@ -0,0 +1,57 @@
+<?php
+namespace App\CMS\Handlers;
+
+use App\CMS\Enumerations\ContentStatuses;
+use App\CMS\Handlers\Contracts\HistoryHandler;
+use App\CMS\Helpers\Differ;
+
+class History implements HistoryHandler
+{
+    public static function parseColumnName($column)
+    {
+        return trans('admin/history.column' . ucfirst($column));
+    }
+
+    public static function parseChangedValue($changeset)
+    {
+        switch ($changeset->column) {
+            case 'pageContent':
+                $route = route('history.diff', [
+                    'revision' => $changeset->edit_batch,
+                    'id'       => $changeset->id
+                ]);
+
+                return "(<a href='" . $route . "'>" . trans('admin/history.diff') . "</a>)";
+                break;
+            case 'metaDescription':
+                return Differ::htmlDiff($changeset->old_value, $changeset->new_value);
+                break;
+            case 'file':
+                if (!$changeset->old_value) {
+                    // old value is null -> new file was uploaded
+                    return trans('admin/history.uploadedFile', ['file' => $changeset->new_value]);
+                } else {
+                    return trans('admin/history.deletedFile', ['file' => $changeset->old_value]);
+                }
+
+                break;
+            case 'status':
+                $statuses = ContentStatuses::getWithTranslations();
+
+                return trans('admin/history.changedFromTo', [
+                    'from' => $statuses[$changeset->old_value],
+                    'to'   => $statuses[$changeset->new_value]
+                ]);
+                break;
+            case 'is_homepage':
+                return trans('admin/history.setupAsHomepage');
+                break;
+            default:
+                return trans('admin/history.changedFromTo', [
+                    'from' => is_null($changeset->old_value) ? trans('admin/history.emptyValue') : $changeset->old_value,
+                    'to'   => is_null($changeset->new_value) ? trans('admin/history.emptyValue') : $changeset->new_value,
+                ]);
+                break;
+        }
+    }
+}

app/CMS/Handlers/Registrators/Items/SettingExtension.php

@@ -0,0 +1,56 @@
+<?php
+namespace App\CMS\Handlers\Registrators\Items;
+
+class SettingExtension
+{
+    /**
+     * @var string human readable ID of settings section (used e.g. as ID parameter in html)
+     */
+    protected $id;
+    /**
+     * @var string translations string used for describing briefly settings section
+     */
+    protected $name;
+    /**
+     * @var string view used for rendering given settings part
+     */
+    protected $view;
+
+    /**
+     * SettingExtension constructor.
+     *
+     * @param string $id
+     * @param string $name
+     * @param string $view
+     */
+    public function __construct($id, $name, $view)
+    {
+        $this->id = $id;
+        $this->name = $name;
+        $this->view = $view;
+    }
+
+    /**
+     * @return string
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    /**
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * @return string
+     */
+    public function getView()
+    {
+        return $this->view;
+    }
+}

app/CMS/Handlers/Registrators/MenuExtensionRegistrator.php

@@ -0,0 +1,20 @@
+<?php
+namespace App\CMS\Handlers\Registrators;
+
+use App\CMS\Widgets\Contracts\MenuExtensionHandler;
+
+class MenuExtensionRegistrator {
+
+    protected $menuExtensions;
+
+    /**
+     * @param MenuExtensionHandler $handler
+     */
+    public function register(MenuExtensionHandler $handler) {
+        $this->menuExtensions[] = $handler;
+    }
+
+    public function get(){
+        return $this->menuExtensions;
+    }
+}

app/CMS/Handlers/Registrators/SearchEngineRegistrator.php

@@ -0,0 +1,72 @@
+<?php
+namespace App\CMS\Handlers\Registrators;
+
+use App\CMS\Enumerations\Exceptions\EnumerationExistsException;
+use App\CMS\Handlers\Contracts\SearchHandler;
+use App\CMS\Handlers\Contracts\SearchPresenterHandler;
+use App\CMS\Handlers\Registrators\Items\SearchEngine;
+use Symfony\Component\Process\Exception\InvalidArgumentException;
+
+class SearchEngineRegistrator
+{
+    const ADMIN = 'admin';
+    const VISITOR = 'visitor';
+    protected $searchEngines;
+
+    function __construct($app)
+    {
+        $this->searchEngines = [
+            self::ADMIN   => [],
+            self::VISITOR => []
+        ];
+    }
+
+    /**
+     * Method for registering new settings extensions/parts
+     *
+     * @param SearchHandler          $search
+     * @param SearchPresenterHandler $presenter
+     *
+     * @param                        $type
+     *
+     * @throws EnumerationExistsException
+     */
+    public function register(SearchHandler $search, SearchPresenterHandler $presenter, $type)
+    {
+        $this->checkIfRegistered($type, $search->getId());
+
+        // register new extension
+        $this->searchEngines[$type][$search->getId()] = [$search, $presenter];
+    }
+
+    /**
+     * Getter for all registered extensions
+     *
+     * @param $type
+     *
+     * @return array
+     */
+    public function get($type)
+    {
+        if (!isset($this->searchEngines[$type])) {
+            throw new InvalidArgumentException('Invalid type ' . $type);
+        }
+
+        return $this->searchEngines[$type];
+    }
+
+    /**
+     * Checks if this section is not already defined
+     *
+     * @param $type
+     * @param $id
+     *
+     * @throws EnumerationExistsException
+     */
+    private function checkIfRegistered($type, $id)
+    {
+        if (isset($this->searchEngines[$type][$id])) {
+            throw new EnumerationExistsException('Already existing search engine ' . $id . ' in ' . $type);
+        }
+    }
+}

app/CMS/Handlers/Registrators/SettingsExtensionRegistrator.php

@@ -0,0 +1,71 @@
+<?php
+namespace App\CMS\Handlers\Registrators;
+
+use App\CMS\Enumerations\Exceptions\EnumerationExistsException;
+use App\CMS\Handlers\Registrators\Items\SettingExtension;
+
+class SettingsExtensionRegistrator
+{
+    protected $settingsExtensions;
+
+    function __construct($app)
+    {
+        $this->settingsExtensions = [];
+    }
+
+    /**
+     * Method for registering new settings extensions/parts
+     *
+     * @param $sectionId
+     * @param $sectionName
+     * @param $sectionView
+     *
+     * @throws EnumerationExistsException
+     */
+    public function register($sectionId, $sectionName, $sectionView)
+    {
+        $this->checkIfRegistered($sectionId);
+
+        // register new extension
+        $this->settingsExtensions[$sectionId] = new SettingExtension($sectionId, $sectionName, $sectionView);
+    }
+
+    /**
+     * Registers new setting part - only as SettingExtension directly
+     *
+     * @param SettingExtension $extension
+     */
+    public function registerObject(SettingExtension $extension)
+    {
+        $this->checkIfRegistered($extension->getId());
+
+        $this->settingsExtensions[$extension->getId()] = $extension;
+    }
+
+    /**
+     * Getter for all registered extensions
+     *
+     * @return array
+     */
+    public function get()
+    {
+        // sort registered extensions by key
+        ksort($this->settingsExtensions);
+        
+        return $this->settingsExtensions;
+    }
+
+    /**
+     * Checks if this section is not already defined
+     *
+     * @param $sectionId
+     *
+     * @throws EnumerationExistsException
+     */
+    private function checkIfRegistered($sectionId)
+    {
+        if (isset($this->settingsExtensions[$sectionId])) {
+            throw new EnumerationExistsException('Already existing key ' . $sectionId);
+        }
+    }
+}

app/CMS/Handlers/Registrators/TemplateRegistrator.php

@@ -0,0 +1,306 @@
+<?php
+namespace App\CMS\Handlers\Registrators;
+
+use App\CMS\Enumerations\TemplatePaths;
+use App\CMS\Enumerations\Templates;
+use App\Models\Template;
+use App\Models\TemplatePath;
+use Illuminate\Support\Facades\File;
+use Illuminate\Support\Str;
+use Symfony\Component\Process\Exception\InvalidArgumentException;
+
+class TemplateRegistrator
+{
+    /**
+     * @var string absolute path to base directory of registered template paths
+     */
+    protected $baseDirectory;
+    /**
+     * @var string namespace of registered templates
+     */
+    protected $namespace;
+    /**
+     * @var string absolute path to currently registered directory
+     * This variable is set in register() method as $baseDirectory/$path
+     */
+    protected $registeredPath;
+    /**
+     * @var int ID of module
+     */
+    protected $moduleId;
+    /**
+     * @var array list of all registered template paths
+     */
+    protected $paths = [];
+
+    /**
+     * Set base path
+     *
+     * @param mixed $baseDirectory
+     */
+    public function setBaseDirectory($baseDirectory)
+    {
+        $baseDirectory = str_replace('/', DIRECTORY_SEPARATOR, $baseDirectory);
+        $baseDirectory = base_path($baseDirectory);
+        $baseDirectory = rtrim($baseDirectory, DIRECTORY_SEPARATOR);
+
+        if (!is_dir($baseDirectory)) {
+            throw new InvalidArgumentException('Invalid path ' . $baseDirectory);
+        }
+
+        $this->baseDirectory = $baseDirectory;
+    }
+
+    /**
+     * Set module ID for registered path
+     *
+     * @param int $moduleId
+     */
+    public function setModuleId($moduleId)
+    {
+        $this->moduleId = $moduleId;
+    }
+
+    /**
+     * Set namespace for registered template path
+     *
+     * @param string $namespace
+     */
+    public function setNamespace($namespace)
+    {
+        $this->namespace = $namespace;
+    }
+
+    /**
+     * Resets namespace
+     */
+    public function unsetNamespace()
+    {
+        $this->namespace = null;
+        $this->setModuleId(null);
+    }
+
+    /**
+     * Registers new template path.
+     * This method registeres given path itself with all subdirectories
+     *
+     * @param        $baseDirectory
+     * @param string $path path relatively to root of the project
+     * @param string $name human readable identification of given template path
+     *
+     * @throws \Exception
+     */
+    public function register($baseDirectory, $path, $name)
+    {
+        $this->paths[] = [
+            'namespace'     => $this->namespace,
+            'moduleId'      => $this->moduleId,
+            'baseDirectory' => $baseDirectory,
+            'path'          => $this->baseDirectory . DIRECTORY_SEPARATOR . $path,
+            'name'          => $name
+        ];
+        $this->unsetNamespace();
+    }
+
+    /**
+     * Save templates into database
+     */
+    public function saveTemplates()
+    {
+        if (!is_array($this->paths) || empty($this->paths)) {
+            return;
+        }
+
+        foreach ($this->paths as $path) {
+            if (!empty($path['namespace'])) {
+                $this->setNamespace($path['namespace'] . '::');
+            }
+            $this->setModuleId($path['moduleId']);
+            $this->setBaseDirectory($path['baseDirectory']);
+
+            $this->registeredPath = $this->baseDirectory . DIRECTORY_SEPARATOR . $path['path'];
+            // register path
+            $this->registerPath($this->registeredPath, $path['name']);
+            $this->unsetNamespace();
+        }
+    }
+
+    /**
+     * Get relative path to project root
+     *
+     * @param $directory
+     *
+     * @return string
+     */
+    protected function relativePath($directory)
+    {
+        return trim(str_replace(base_path(), '', $directory), '/');
+    }
+
+    /**
+     * Crawl subdirectories and register them
+     *
+     * @param string $directory path relative to $baseDirectory variable
+     * @param string $name      name of parent directory
+     */
+    protected function scanForSubdirectories($directory, $name)
+    {
+        $directories = File::directories($directory);
+
+        foreach ($directories as $dir) {
+            $base = basename($dir);
+            $name = preg_replace('/\.(.+)/', '.' . $base, $name);
+
+            $this->registerPath($dir, $name, $directory);
+        }
+    }
+
+    /**
+     * Registers template path and templates into system
+     *
+     * @param string      $path   relative path to $baseDirectory variable
+     * @param string      $name   human readable name of this path (used in overview)
+     * @param null|string $parent path to parent directory
+     */
+    protected function registerPath($path, $name, $parent = null)
+    {
+        // skip custom directories (contains updated templates only)
+        $dirName = basename($path);
+        $ignoredDirectories = [
+            Template::EDITED_TEMPLATES_DIRECTORY,
+            Template::ASSETS_DIRECTORY,
+            Template::MODULES_DIRECTORY
+        ];
+
+        if (in_array($dirName, $ignoredDirectories)) {
+            return;
+        }
+
+        // save template path into database
+        $templatePathId = $this->saveTemplatePath($path, $name, $parent);
+
+        // save all templates into database
+        $this->registerTemplates($path, $templatePathId);
+
+        // try to find some subdirectories and other templates
+        $this->scanForSubdirectories($path, $name);
+    }
+
+    /**
+     * Registers all templates
+     * This method takes all templates in given directory and registers them into database. Templates registered in
+     * this way may be used for further manipulation.
+     *
+     * @param $path
+     * @param $templatePathId
+     *
+     * @throws \App\CMS\Enumerations\Exceptions\EnumerationExistsException
+     */
+    protected function registerTemplates($path, $templatePathId)
+    {
+        $templates = File::files($path);
+
+        foreach ($templates as $template) {
+
+            // skip all non-template files - we assume that every file with suffix ".blade.php" is Blade template
+            if (!Str::endsWith($template, Template::TEMPLATE_SUFFIX)) {
+                continue;
+            }
+
+            // get all templates and template name (path/to/template.blade.php -> path.to.template)
+            $templateName = $this->getTemplateName($template);
+            $registeredTemplates = Templates::getWithTranslations();
+
+            if (!in_array($templateName, $registeredTemplates)) {
+                $params = [
+                    'template_name' => $templateName,
+                    'name'          => $templateName,
+                    'path'          => $templatePathId,
+                    'module_id'     => $this->moduleId,
+                    'description'   => '',
+                    'editable'      => 1
+                ];
+
+                // save template into database
+                $newTemplate = Template::create($params);
+
+                // push template into enumeration - so it will not be registered again
+                Templates::push($newTemplate->id, $templateName);
+            }
+        }
+    }
+
+    /**
+     * Save template into database and return its ID
+     *
+     * @param      $path
+     * @param      $name
+     * @param null $parent
+     *
+     * @return mixed|null
+     * @throws \App\CMS\Enumerations\Exceptions\EnumerationExistsException
+     */
+    protected function saveTemplatePath($path, $name, $parent = null)
+    {
+        $registeredPaths = TemplatePaths::getWithTranslations();
+        $relativePath = $this->relativePath($path);
+
+        if (!in_array($relativePath, $registeredPaths)) {
+            $parentId = $this->getId($this->relativePath($parent));
+
+            $params = [
+                'path'      => $relativePath,
+                'name'      => $name,
+                'namespace' => $this->namespace,
+                'parent_id' => $parentId
+            ];
+
+            // save into database
+            $path = TemplatePath::create($params);
+
+            // add to enumeration
+            TemplatePaths::push($path->id, $relativePath);
+
+            return $path->id;
+        }
+
+        return $this->getId($relativePath);
+    }
+
+    /**
+     * Get ID of registered template
+     *
+     * @param $path
+     *
+     * @return null|int null when parent not found, ID of parent otherwise
+     */
+    private function getId($path)
+    {
+        // get registered paths
+        $paths = TemplatePaths::getWithTranslations();
+        $paths = array_flip($paths);
+
+        if (is_null($path) || !isset($paths[$path])) {
+            return null;
+        }
+
+        return $paths[$path];
+    }
+
+    /**
+     * Get template name
+     * Converts path to template to corresponding name
+     *
+     * @param $template
+     *
+     * @return string
+     */
+    private function getTemplateName($template)
+    {
+        $templateName = str_replace($this->registeredPath . DIRECTORY_SEPARATOR, '', $template);
+        $templateName = str_replace(DIRECTORY_SEPARATOR, '.', $templateName);
+        $templateName = str_replace(Template::TEMPLATE_SUFFIX, '', $templateName);
+
+        return $this->namespace . $templateName;
+    }
+}

app/CMS/Handlers/Registrators/WidgetRegistrator.php

@@ -0,0 +1,58 @@
+<?php
+namespace App\CMS\Handlers\Registrators;
+
+use App\CMS\Enumerations\WidgetTypesWithHandlers;
+use App\Models\Widgets\WidgetType;
+
+class WidgetRegistrator
+{
+    protected $registeredWidgets = [];
+
+
+    /**
+     * Method used for registering new widgets
+     *
+     * @param      $classname
+     * @param null $templateId
+     * @param null $moduleId
+     */
+    public function register($classname, $templateId = null, $moduleId = null)
+    {
+        $this->registeredWidgets[] = [
+            'class'      => $classname,
+            'templateId' => $templateId,
+            'moduleId'   => $moduleId
+        ];
+    }
+
+    /**
+     * Install all non-installed widgets
+     */
+    public function installWidgets()
+    {
+        $installed = WidgetTypesWithHandlers::getSimple();
+        foreach ($this->registeredWidgets as $registeredWidget) {
+            $classname = $registeredWidget['class'];
+            $templateId = $registeredWidget['templateId'];
+            $moduleId = $registeredWidget['moduleId'];
+
+            // register widget as new widget type
+            if (!in_array($classname, $installed)) {
+                $widgetName = call_user_func($classname . '::getName');
+                $widgetDescription = call_user_func($classname . '::getDescription');
+
+                // create row in widget types
+                WidgetType::create([
+                                       'handler'     => $classname,
+                                       'name'        => $widgetName,
+                                       'module_id'   => $moduleId,
+                                       'template_id' => $templateId,
+                                       'description' => $widgetDescription
+                                   ]);
+
+                // install widget (if neccessary)
+                call_user_func($classname . '::install');
+            }
+        }
+    }
+}

app/CMS/Handlers/Search/Content.php

@@ -0,0 +1,36 @@
+<?php
+namespace App\CMS\Handlers\Search;
+
+use App\Models\Content\Content as ContentModel;
+
+class Content extends Search
+{
+    /**
+     * Search for given patttern/term
+     *
+     * @param string $term searched word
+     *
+     * @return array list of found objects
+     */
+    public function search($term)
+    {
+        $token = $this->tokenize($term);
+
+        return ContentModel::where('content', 'LIKE', $token)
+                           ->orWhere('meta_description', 'LIKE', $token)
+                           ->orWhere('meta_keywords', 'LIKE', $token)
+                           ->orWhere('title', 'LIKE', $token)
+                           ->orWhere('url', 'LIKE', $token)
+                           ->get();
+    }
+
+    public function getId()
+    {
+        return 'content';
+    }
+
+    public function getName()
+    {
+        return trans('search.content');
+    }
+}

app/CMS/Handlers/Search/Files.php

@@ -0,0 +1,36 @@
+<?php
+namespace App\CMS\Handlers\Search;
+
+use App\Models\FileManager\File;
+
+class Files extends Search
+{
+    public function getId()
+    {
+        return "files";
+    }
+
+    public function getName()
+    {
+        return trans('search.files');
+    }
+
+    /**
+     * Search for given patttern/term
+     *
+     * @param string $term searched word
+     *
+     * @return array list of found objects
+     */
+    public function search($term)
+    {
+        $token = $this->tokenize($term);
+
+        return File::where('original_filename', 'LIKE', $token)
+                   ->orWhere('name', 'LIKE', $token)
+                   ->orWhere('keywords', 'LIKE', $token)
+                   ->orWhere('description', 'LIKE', $token)
+                   ->orWhere('mime_type', 'LIKE', $token)
+                   ->get();
+    }
+}

app/CMS/Handlers/Search/Presenters/AdminContent.php

@@ -0,0 +1,16 @@
+<?php
+namespace App\CMS\Handlers\Search\Presenters;
+
+use App\CMS\Enumerations\ContentStatuses;
+use App\CMS\Handlers\Contracts\SearchPresenterHandler;
+
+class AdminContent implements SearchPresenterHandler
+{
+    public function render($foundItems)
+    {
+        return view('admin.search.results.content', [
+            'pages'    => $foundItems,
+            'statuses' => ContentStatuses::getWithTranslations(),
+        ]);
+    }
+}

app/CMS/Handlers/Search/Presenters/AdminFiles.php

@@ -0,0 +1,19 @@
+<?php
+namespace App\CMS\Handlers\Search\Presenters;
+
+use App\CMS\Handlers\Contracts\SearchPresenterHandler;
+
+class AdminFiles implements SearchPresenterHandler
+{
+    /**
+     * Method for rendering list of found results
+     *
+     * @param $foundItems
+     *
+     * @return mixed
+     */
+    public function render($foundItems)
+    {
+        return view('admin.fileManager.filesTiles', ['files' => $foundItems, 'hideDelete' => true]);
+    }
+}

app/CMS/Handlers/Search/Search.php

@@ -0,0 +1,26 @@
+<?php
+namespace App\CMS\Handlers\Search;
+
+use App\CMS\Handlers\Contracts\SearchHandler;
+use Symfony\Component\Process\Exception\InvalidArgumentException;
+
+abstract class Search implements SearchHandler
+{
+    /**
+     * Tokenize string for usage in LIKE clausules
+     *
+     * @param $term
+     *
+     * @return string
+     */
+    protected function tokenize($term)
+    {
+        $term = trim($term);
+
+        if (empty($term)) {
+            throw new InvalidArgumentException(trans('search.emptyString'));
+        }
+
+        return '%' . str_replace(' ', '%', $term) . '%';
+    }
+}

app/CMS/Helpers/CurrentTemplate.php

@@ -0,0 +1,63 @@
+<?php
+namespace App\CMS\Helpers;
+
+use App\Models\Module;
+use DebugBar\Bridge\MonologCollector;
+use Illuminate\Database\QueryException;
+use Monolog\Logger;
+
+class CurrentTemplate
+{
+    protected static $template;
+    protected static $initialized = false;
+
+    /**
+     * Getter for currently set template
+     * @return Module
+     * @throws \ErrorException
+     */
+    public static function get()
+    {
+        if (!self::$initialized) {
+            try {
+            self::$template = Module::where('is_template', true)
+                                    ->where('enabled', true)
+                                    ->first();
+            } catch (QueryException $e) {
+                throw new \ErrorException('DB not migrated, please, do so!');
+            }
+            if (self::$template) {
+                self::$template->module_settings = json_decode(self::$template->module_settings);
+            }
+
+            self::$initialized = true;
+        }
+
+        return self::$template;
+    }
+
+    /**
+     * Shortcut for getting template handler
+     *
+     * @return string
+     * @throws \ErrorException
+     */
+    public static function handler()
+    {
+        $template = self::get();
+
+        if (!$template) {
+            throw new \ErrorException('No template selected, no handler available!');
+        }
+
+        return $template->handler;
+    }
+
+    /**
+     * Reset currently set template and load another one on next call of get() method.
+     */
+    public static function reset()
+    {
+        self::$initialized = false;
+    }
+}

app/CMS/Helpers/Date.php

@@ -0,0 +1,64 @@
+<?php
+namespace App\CMS\Helpers;
+
+class Date
+{
+    /**
+     * Print date in configured format
+     *
+     * @param      $datestamp
+     * @param bool $withTime
+     *
+     * @return false|string
+     */
+    public static function date($datestamp, $withTime = true)
+    {
+        $timestamp = strtotime($datestamp);
+
+        if ($timestamp <= 0) {
+            return '';
+        }
+
+        $format = $withTime ? config('app.datetime_format') : config('app.date_format');
+
+        return date($format, $timestamp);
+    }
+
+    public static function dateFormatted($format, $datestamp)
+    {
+        $timestamp = strtotime($datestamp);
+
+        if ($timestamp <= 0) {
+            return '';
+        }
+
+        return date($format, $timestamp);
+    }
+
+    public static function monthName($datestamp) {
+        $timestamp = strtotime($datestamp);
+
+        if ($timestamp <= 0) {
+            return '';
+        }
+
+        $months = [
+            trans('common.months.january'),
+            trans('common.months.february'),
+            trans('common.months.march'),
+            trans('common.months.april'),
+            trans('common.months.may'),
+            trans('common.months.june'),
+            trans('common.months.july'),
+            trans('common.months.august'),
+            trans('common.months.semptember'),
+            trans('common.months.october'),
+            trans('common.months.november'),
+            trans('common.months.december'),
+        ];
+
+        $monthNumber = date('n', $timestamp);
+
+        return $months[$monthNumber - 1];
+    }
+}

app/CMS/Helpers/Differ.php

@@ -0,0 +1,64 @@
+<?php
+namespace App\CMS\Helpers;
+
+/*
+    Paul's Simple Differ Algorithm v 0.1
+    (C) Paul Butler 2007 <http://www.paulbutler.org/>
+    May be used and distributed under the zlib/libpng license.
+
+    This code is intended for learning purposes; it was written with short
+    code taking priority over performance. It could be used in a practical
+    application, but there are a few ways it could be optimized.
+
+    Given two arrays, the function diff will return an array of the changes.
+    I won't describe the format of the array, but it will be obvious
+    if you use print_r() on the result of a diff on some test data.
+
+    htmlDiff is a wrapper for the diff command, it takes two strings and
+    returns the differences in HTML. The tags used are <ins> and <del>,
+    which can easily be styled with CSS.
+
+    @url https://github.com/paulgb/simplediff/blob/master/php/simplediff.php
+
+    Sorry for this kind of magic, I have no idea how this works.. :(
+*/
+
+class Differ
+{
+    public static function diff($old, $new)
+    {
+        $matrix = [];
+        $maxlen = 0;
+        foreach ($old as $oindex => $ovalue) {
+            $nkeys = array_keys($new, $ovalue);
+            foreach ($nkeys as $nindex) {
+                $matrix[$oindex][$nindex] = isset($matrix[$oindex - 1][$nindex - 1]) ? $matrix[$oindex - 1][$nindex - 1] + 1 : 1;
+                if ($matrix[$oindex][$nindex] > $maxlen) {
+                    $maxlen = $matrix[$oindex][$nindex];
+                    $omax = $oindex + 1 - $maxlen;
+                    $nmax = $nindex + 1 - $maxlen;
+                }
+            }
+        }
+        if ($maxlen == 0) {
+            return [['d' => $old, 'i' => $new]];
+        }
+
+        return array_merge(self::diff(array_slice($old, 0, $omax), array_slice($new, 0, $nmax)), array_slice($new, $nmax, $maxlen), self::diff(array_slice($old, $omax + $maxlen), array_slice($new, $nmax + $maxlen)));
+    }
+
+    public static function htmlDiff($old, $new)
+    {
+        $ret = '';
+        $diff = self::diff(preg_split("/[\s]+/", $old), preg_split("/[\s]+/", $new));
+        foreach ($diff as $k) {
+            if (is_array($k)) {
+                $ret .= (!empty($k['d']) ? "<del>" . implode(' ', $k['d']) . "</del> " : '') . (!empty($k['i']) ? "<ins>" . implode(' ', $k['i']) . "</ins> " : '');
+            } else {
+                $ret .= $k . ' ';
+            }
+        }
+
+        return $ret;
+    }
+}

app/CMS/Helpers/FileManager.php

@@ -0,0 +1,133 @@
+<?php
+namespace App\CMS\Helpers;
+
+use App\Models\FileManager\File;
+
+class FileManager
+{
+    /**
+     * @param File $file
+     *
+     * @return \Illuminate\Contracts\Routing\UrlGenerator|string
+     */
+    public static function getPreview(File $file)
+    {
+        list($type, $subtype) = explode('/', $file->mime_type);
+
+        switch ($type) {
+            case 'image':
+
+               $url = Path::thumbnail($file->filename);
+
+                return '<img src="' . $url . '" alt="' . $file->description . '" />';
+                break;
+            case 'text':
+                return self::getIcon($file, 'fa-file-text-o');
+                break;
+            case 'application':
+                switch ($subtype) {
+                    case 'pdf':
+                        return self::getIcon($file, 'fa-file-pdf-o');
+                        break;
+                    default:
+                        return self::getIcon($file, 'fa-newspaper-o');
+                        break;
+                }
+                break;
+            default:
+                return self::getIcon($file, 'fa-question');
+                break;
+        }
+    }
+
+    /**
+     * Shortcut for displaying icons
+     *
+     * @param $file
+     * @param $icon
+     *
+     * @return string
+     */
+    protected static function getIcon($file, $icon)
+    {
+        return '<p><i class="fa fa-2x ' . $icon . '"></i><br /><span>' . e(str_limit($file->original_filename, 15)) . '</span></p>';
+    }
+
+    /**
+     *
+     *
+     * @param File $file
+     *
+     * @return string
+     */
+    public static function getFormattedSize(File $file)
+    {
+        $bytes = $file->file_size;
+
+        $label = ['B', 'KB', 'MB', 'GB', 'TB', 'PB'];
+        for ($i = 0; $bytes >= 1024 && $i < (count($label) - 1); $bytes /= 1024, $i++) {
+            ;
+        }
+
+        return (round($bytes, 2) . " " . $label[$i]);
+    }
+
+    /**
+     * Get preview for file detail
+     *
+     * @param File $file
+     *
+     * @return \Illuminate\Contracts\Routing\UrlGenerator|string
+     */
+    public static function getLargePreview(File $file)
+    {
+        list($type, $subtype) = explode('/', $file->mime_type);
+
+        $url = config('app.upload_url') . '/' . $file->filename;
+        $path = config('app.upload_path') . DIRECTORY_SEPARATOR . $file->filename;
+
+        switch ($type) {
+            case 'image':
+                return '<img src="' . $url . '" alt="' . $file->description . '" />';
+                break;
+            case 'text':
+                $string = '<pre><code>';
+                $string .= htmlspecialchars(file_get_contents($path));
+                $string .= '</pre></code>';
+
+                return $string;
+                break;
+            case 'application':
+                return '<iframe src = "'.asset('resources/assets/admin/js/viewerJs/').'/#'.Template::upload($file->filename).'" style="width: 100%; height: 50em" allowfullscreen webkitallowfullscreen></iframe>';
+            break;
+            default:
+                return self::getPreview($file);
+                break;
+        }
+    }
+
+    /**
+     * @param File $file
+     *
+     * @return array
+     */
+    public static function getAdditionalInfo(File $file)
+    {
+        list($type, $subtype) = explode('/', $file->mime_type);
+
+        $path = config('app.upload_path') . DIRECTORY_SEPARATOR . $file->filename;
+
+        switch ($type) {
+            case 'text':
+                return [trans('admin/fileManager.encoding') => mb_detect_encoding(file_get_contents($path))];
+                break;
+
+            case 'image':
+                list ($width, $height) = getimagesize($path);
+                return [trans('admin/fileManager.resolution') => $height . ' x ' . $width,];
+                break;
+        }
+
+        return [];
+    }
+}

app/CMS/Helpers/Gravatar.php

@@ -0,0 +1,10 @@
+<?php
+namespace App\CMS\Helpers;
+
+class Gravatar
+{
+    public static function img($email, $size = 50)
+    {
+        return "//www.gravatar.com/avatar/" . md5(strtolower(trim($email))) . "?s=" . $size;
+    }
+}

app/CMS/Helpers/PageRenderer.php

@@ -0,0 +1,43 @@
+<?php
+namespace App\CMS\Helpers;
+
+use App\CMS\Handlers\Contracts\AppHandler;
+use App\Models\Content\Content;
+use Webwizo\Shortcodes\Facades\Shortcode;
+
+/**
+ * Class PageRenderer
+ *
+ * Simple class for rendering page for visitor
+ *
+ * @package App\CMS\Helpers
+ */
+class PageRenderer
+{
+    /**
+     * Render page
+     *
+     * @param Content $page
+     *
+     * @return mixed
+     */
+    public static function render(Content $page)
+    {
+        // decode module settings
+        $page->module_settings = json_decode($page->module_settings);
+
+        // do something template-specific
+        $parameters = call_user_func_array([CurrentTemplate::handler(), 'beforeRender'], [&$page]);
+
+        /**
+         * @var $handler AppHandler
+         */
+        // get handler
+        $handler = new $page->module_handler;
+
+        $page->content = Shortcode::compile($page->content);
+
+        // render page
+        return $handler->render($page, $parameters);
+    }
+}

app/CMS/Helpers/Path.php

@@ -0,0 +1,61 @@
+<?php
+namespace App\CMS\Helpers;
+
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\Process\Exception\InvalidArgumentException;
+
+class Path
+{
+    /**
+     * Get URL to uploaded file
+     *
+     * @param $filename
+     *
+     * @return string
+     */
+    public static function upload($filename)
+    {
+        // for debug environment check if file exists
+        if (env('APP_DEBUG') && !file_exists(config('app.upload_path') . '/' . $filename)) {
+            throw new NotFoundHttpException('File ' . $filename . ' cannot be found in ' . config('app.upload_path') . '.');
+        }
+
+        // return url to uploaded file
+        return config('app.upload_url') . '/' . $filename;
+    }
+
+    public static function thumbnail($filename)
+    {
+        // try to check if file have thumbnail
+        if (file_exists(config('app.thumbnail_path') . '/' . $filename)) {
+            $url = config('app.thumbnail_url') . '/' . $filename;
+        } else {
+            $url = self::upload($filename);
+        }
+
+        return $url;
+    }
+
+    /**
+     * Get path to given asset
+     *
+     * @param $path
+     *
+     * @return string
+     */
+    public static function asset($path)
+    {
+        if (env('APP_DEBUG')) {
+            if (empty($path)) {
+                throw new InvalidArgumentException('No asset name defined!');
+            }
+
+            // check if asset exists and is file
+            if (!file_exists(public_path('assets/' . config('app.theme') . '/' . $path))) {
+                throw new NotFoundHttpException('Cannot find any asset in ' . public_path('assets/' . config('app.theme') . '/' . $path) . '. Try to check your paths.');
+            }
+        }
+
+        return config('app.url') . '/assets/' . config('app.theme') . '/' . $path;
+    }
+}

app/CMS/Helpers/Settings.php

@@ -0,0 +1,83 @@
+<?php
+
+namespace App\CMS\Helpers;
+
+use App\Models\Settings as SettingsModel;
+
+/**
+ * Class Settings
+ *
+ * Helper class for easier obtaining system settings
+ *
+ * @package App\CMS\Helpers
+ */
+class Settings
+{
+    /**
+     * @var array List of all used settings
+     */
+    protected static $settings;
+    /**
+     * @var bool Are data already initialized?
+     */
+    protected static $initialized = false;
+
+    /**
+     * Getter for settings determined with key.
+     *
+     * @param string      $key     settings key
+     * @param string|null $default default value, which will be returned when given key does not exist
+     *
+     * @param null        $exists
+     *
+     * @return null|string
+     */
+    public static function get($key, $default = null, & $exists = null)
+    {
+        self::init();
+
+        if (isset(self::$settings->$key)) {
+            $exists = true;
+            self::$initialized = true;
+            return self::$settings->$key;
+        }
+
+        $exists = false;
+        return $default;
+    }
+
+    /**
+     * Shortcut for obtaining settings saved as JSON
+     *
+     * @param $key
+     *
+     * @return mixed
+     */
+    public static function getJson($key)
+    {
+        return json_decode(self::get($key, '{}'));
+    }
+
+    /**
+     * Get all settings
+     *
+     * @return array
+     */
+    public static function all()
+    {
+        self::init();
+
+        return self::$settings;
+    }
+
+    /**
+     * Initialize settings array
+     */
+    private static function init()
+    {
+        if (!self::$initialized) {
+            $model = new SettingsModel();
+            self::$settings = $model->getAll();
+        }
+    }
+}

app/CMS/Helpers/Template.php

@@ -0,0 +1,47 @@
+<?php
+namespace App\CMS\Helpers;
+
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\Process\Exception\InvalidArgumentException;
+
+class Template
+{
+    /**
+     * Getter for real template name
+     *
+     * @param $template
+     *
+     * @return null|string
+     */
+    public static function name($template, $throwExceptions = true)
+    {
+        $namespace = null;
+        if (strpos($template, '::')) {
+            list($namespace, $template) = explode('::', $template);
+            $namespace .= '::';
+        }
+
+        // list of prefixes
+        $prefixes = ['custom.', ''];
+
+        $view = null;
+        foreach ($prefixes as $prefix) {
+            if (view()->exists($namespace . 'visitor.' . $prefix . $template)) {
+                $view = $namespace . 'visitor.' . $prefix . $template;
+                break;
+            }
+        }
+
+        if (is_null($view)) {
+            if ($throwExceptions) {
+                throw new InvalidArgumentException('Cannot find template for ' . $namespace . $template);
+            } else {
+                return false;
+            }
+        }
+
+        return $view;
+    }
+
+
+}

app/CMS/Helpers/Widget.php

@@ -0,0 +1,18 @@
+<?php
+namespace App\CMS\Helpers;
+
+class Widget
+{
+    public static function render(\App\Models\Widgets\Widget $widget)
+    {
+        $handler = $widget->widget_type_handler;
+
+        if (!is_object($widget->settings)) {
+            $widget->settings = json_decode($widget->settings);
+        }
+
+        $presenter = call_user_func([$handler, 'getPresenter']);
+
+        return call_user_func([$presenter, 'render'], $widget);
+    }
+}

app/CMS/Helpers/WidgetAreas.php

@@ -0,0 +1,68 @@
+<?php
+namespace App\CMS\Helpers;
+
+use App\Models\Widgets\WidgetArea;
+
+class WidgetAreas
+{
+    /**
+     * @var array list of inicialized widget areas
+     */
+    protected static $widgetAreas = [];
+    protected static $initialized = false;
+
+    protected static function saveRenderedWidgetArea($widgets)
+    {
+        foreach ($widgets as $widget) {
+            if (!isset(self::$widgetAreas[$widget->widget_area_code]))
+                self::$widgetAreas[$widget->widget_area_code] = '';
+
+            self::$widgetAreas[$widget->widget_area_code] .= Widget::render($widget);
+        }
+    }
+
+    protected static function loadWidgetArea($uniqueCode)
+    {
+        $widgetArea = new WidgetArea();
+        $widgets = $widgetArea->getWidgets($uniqueCode)
+                              ->get();
+
+        WidgetArea::where('code', $uniqueCode)
+                  ->increment('viewed');
+
+        self::saveRenderedWidgetArea($widgets);
+    }
+
+    protected static function initWidgetAreas()
+    {
+        if (self::$initialized)
+            return;
+
+        $widgetArea = new WidgetArea();
+        $widgets = $widgetArea->getWidgets()
+                              ->get();
+
+        self::saveRenderedWidgetArea($widgets);
+        self::$initialized = true;
+    }
+
+    /**
+     * Renderer for whole widget area.
+     *
+     * @param $uniqueCode
+     *
+     * @return mixed
+     */
+    public static function render($uniqueCode)
+    {
+        if (!self::$initialized) {
+            self::initWidgetAreas();
+        }
+
+        if (!isset(self::$widgetAreas[$uniqueCode])) {
+            self::loadWidgetArea($uniqueCode);
+        }
+
+        echo isset(self::$widgetAreas[$uniqueCode]) ? self::$widgetAreas[$uniqueCode] : null;
+    }
+}

app/CMS/Helpers/functions.php

@@ -0,0 +1,30 @@
+<?php
+/**
+ * Define function for escaping characters.
+ *
+ * This funcion prevents of creating build-in function, which escapes also accents...
+ *
+ * @param $value
+ *
+ * @return string
+ */
+function e($value)
+{
+    return htmlspecialchars($value, ENT_QUOTES, 'UTF-8');
+}
+
+/**
+ * Shortcut for \App\CMS\Helpers\Settings::get()
+ *
+ * @param      $key
+ * @param null $default
+ *
+ * @return null|string
+ */
+function setting($key, $default = null) {
+    return \App\CMS\Helpers\Settings::get($key, $default);
+}
+
+function asset_path($path) {
+    return env('SITE_URL').'/assets/'.$path;
+}

app/CMS/MenuPresenters/FoundationDrilldownMenuPresenter.php

@@ -0,0 +1,82 @@
+<?php
+namespace App\CMS\MenuPresenters;
+
+use Pingpong\Menus\MenuItem;
+use Pingpong\Menus\Presenters\Presenter;
+
+class FoundationDrilldownMenuPresenter extends Presenter
+{
+    /**
+     * {@inheritdoc }
+     */
+    public function getOpenTagWrapper()
+    {
+        return PHP_EOL . '<ul class="vertical menu" data-drilldown>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getCloseTagWrapper()
+    {
+        return PHP_EOL . '</ul>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithoutDropdownWrapper($item)
+    {
+        return '<li' . $this->getActiveState($item) . '><a href="' . $item->getUrl() . '">' . $item->getIcon() . ' ' . $item->title . '</a></li>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getActiveState(MenuItem $item)
+    {
+        $active = ' class="active"';
+
+        if (empty($item->getChilds())) {
+            // for direct menu input return if page is active
+            return \Request::is($item->getRequest()) ? $active : null;
+        } else {
+            // on nested menu inputs loop over children and in case any of them is active, mark active also root level
+            foreach ($item->getChilds() as $child) {
+                if ($this->getActiveState($child)) {
+                    return $active;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getDividerWrapper()
+    {
+        return '<li class="divider"></li>' . PHP_EOL;
+    }
+
+    public function getMultiLevelDropdownWrapper($item)
+    {
+        return $this->getMenuWithDropDownWrapper($item);
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithDropDownWrapper($item)
+    {
+        $active = $this->getActiveState($item);
+
+        return '<li>
+                <a ' . $active . ' href="#">' . $item->getIcon() . ' ' . $item->title . '</a>
+                <ul class="vertical menu">
+                  ' . $this->getChildMenuItems($item) . '
+                </ul>
+              </li>' . PHP_EOL;;
+    }
+}

app/CMS/MenuPresenters/FoundationDropdownMenuPresenter.php

@@ -0,0 +1,61 @@
+<?php
+namespace App\CMS\MenuPresenters;
+
+use Pingpong\Menus\Presenters\Presenter;
+
+class FoundationDropdownMenuPresenter extends Presenter
+{
+    /**
+     * {@inheritdoc }
+     */
+    public function getOpenTagWrapper()
+    {
+        return PHP_EOL . '<ul class="vertical dropdown menu" data-dropdown-menu>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getCloseTagWrapper()
+    {
+        return PHP_EOL . '</ul>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithoutDropdownWrapper($item)
+    {
+        $link = '<a href="' . $item->getUrl() . '">' . $item->getIcon() . ' ' . $item->title . '</a>';
+        return '<li' . $this->getActiveState($item) . '>' . $link . '</li>'.PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getActiveState($item)
+    {
+        return \Request::is($item->getRequest()) || $item->hasActiveOnChild ? ' class="active"' : null;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getDividerWrapper()
+    {
+        return '<li class="divider"></li>'.PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithDropDownWrapper($item)
+    {
+        return '<li>
+                <a href="#">' . $item->getIcon() . ' ' . $item->title . '</a>
+                <ul class="vertical menu">
+                  ' . $this->getChildMenuItems($item) . '
+                </ul>
+              </li>' . PHP_EOL;;
+    }
+}

app/CMS/MenuPresenters/FoundationInitializedDropdownMenuPresenter.php

@@ -0,0 +1,10 @@
+<?php
+namespace App\CMS\MenuPresenters;
+
+class FoundationInitializedDropdownMenuPresenter extends FoundationDropdownMenuPresenter
+{
+    public function getOpenTagWrapper()
+    {
+        return PHP_EOL . '<ul class="menu">' . PHP_EOL;
+    }
+}

app/CMS/MenuPresenters/MetismenuPresenter.php

@@ -0,0 +1,85 @@
+<?php
+namespace App\CMS\MenuPresenters;
+
+use Pingpong\Menus\MenuItem;
+use Pingpong\Menus\Presenters\Presenter;
+
+class MetismenuPresenter extends Presenter
+{
+    /**
+     * {@inheritdoc }
+     */
+    public function getOpenTagWrapper()
+    {
+        return PHP_EOL . '<ul class="nav metismenu" id="sidebar-menu">' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getCloseTagWrapper()
+    {
+        return PHP_EOL . '</ul>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithoutDropdownWrapper($item)
+    {
+        return '<li' . $this->getActiveState($item) . '><a href="' . $item->getUrl() . '">' . $item->getIcon() . ' ' . $item->title . '</a></li>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getActiveState(MenuItem $item)
+    {
+        if ($item->isDivider()) {
+            return null;
+        }
+
+        $active = ' class="active"';
+
+        if (empty($item->getChilds())) {
+            // for direct menu input return if page is active
+            return \Request::is($item->getRequest()) ? $active : null;
+        } else {
+            // on nested menu inputs loop over children and in case any of them is active, mark active also root level
+            foreach ($item->getChilds() as $child) {
+                if ($this->getActiveState($child)) {
+                    return $active;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getDividerWrapper()
+    {
+        return '<li class="divider"></li>' . PHP_EOL;
+    }
+
+    public function getMultiLevelDropdownWrapper($item)
+    {
+        return $this->getMenuWithDropDownWrapper($item);
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithDropDownWrapper($item)
+    {
+        $active = $this->getActiveState($item);
+        return '<li' . $active . '>
+              <a  href="#">' . $item->getIcon() . ' ' . $item->title . ' <i class="fa arrow"></i></a>
+                <ul>
+                  ' . $this->getChildMenuItems($item) . '
+                </ul>
+              </li>' . PHP_EOL;
+    }
+}

app/CMS/MenuPresenters/ProfileMenuPresenter.php

@@ -0,0 +1,61 @@
+<?php
+namespace App\CMS\MenuPresenters;
+
+use Pingpong\Menus\MenuItem;
+use Pingpong\Menus\Presenters\Presenter;
+
+class ProfileMenuPresenter extends Presenter
+{
+    /**
+     * {@inheritdoc }
+     */
+    public function getOpenTagWrapper()
+    {
+        return PHP_EOL . '<div class="dropdown-menu profile-dropdown-menu">' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getCloseTagWrapper()
+    {
+        return PHP_EOL . '</div>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithoutDropdownWrapper($item)
+    {
+        return '<a href="' . $item->getUrl() . '" class="dropdown-item">' . $item->getIcon() . ' ' . $item->title . '</a>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getActiveState(MenuItem $item)
+    {
+        return null;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getDividerWrapper()
+    {
+        return '<div class="dropdown-divider"></div>' . PHP_EOL;
+    }
+
+    public function getMultiLevelDropdownWrapper($item)
+    {
+        return null;//$this->getMenuWithDropDownWrapper($item);
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithDropDownWrapper($item)
+    {
+        return null;
+    }
+}

app/CMS/Shortcodes/Widget.php

@@ -0,0 +1,88 @@
+<?php
+namespace App\CMS\Shortcodes;
+
+use App\Models\Widgets\Widget as WidgetModel;
+use Mcamara\LaravelLocalization\Facades\LaravelLocalization;
+
+class Widget
+{
+    protected static $widgets = [];
+    protected static $initialized = false;
+
+    protected function getRenderedWidget(WidgetModel $widget)
+    {
+        $widget->settings = json_decode($widget->settings);
+
+        $handler = $widget->widget_type_handler;
+        $presenter = call_user_func([$handler, 'getPresenter']);
+
+        return call_user_func([$presenter, 'render'], $widget);
+    }
+
+    /**
+     * Load one widget from database
+     *
+     * @param $containerId
+     */
+    protected function loadWidget($containerId)
+    {
+        $widget = WidgetModel::where('container_id', $containerId)
+                             ->first();
+
+        if (!$widget) {
+            return;
+        }
+
+        $widget->timestamps = false;
+        $widget->viewed++;
+        $widget->save();
+        $widget->timestamps = true;
+
+        self::$widgets[$containerId] = $this->getRenderedWidget($widget);
+    }
+
+    /**
+     * Load all frequently used widgets
+     *
+     * Frequency of loaded widgets is counted only using direct loading, widgets displayed in widget areas are omitted
+     */
+    protected function initWidgets()
+    {
+        if (self::$initialized) {
+            return;
+        }
+
+        $widgets = WidgetModel::where('viewed', '>=', setting('preloadFrequentedWidgetsTreshold', 10))
+                              ->where('language', LaravelLocalization::getCurrentLocale())
+                              ->get();
+
+        foreach ($widgets as $widget) {
+            self::$widgets[$widget->container_id] = $this->getRenderedWidget($widget);
+        }
+
+        self::$initialized = true;
+    }
+
+    /**
+     * Register new shortcode
+     *
+     * Initfrequently used widgets and if not presented yet - load desired widget specified as content of shortcode
+     *
+     * @param $shortcode
+     * @param $containerId
+     * @param $compiler
+     * @param $name
+     *
+     * @return mixed
+     */
+    public function register($shortcode, $containerId, $compiler, $name)
+    {
+        $this->initWidgets();
+
+        if (!isset(self::$widgets[$containerId])) {
+            $this->loadWidget($containerId);
+        }
+
+        return self::$widgets[$containerId];
+    }
+}

app/CMS/Widgets/HtmlCode/HtmlCode.php

@@ -0,0 +1,63 @@
+<?php
+namespace App\CMS\Widgets\HtmlCode;
+
+use App\CMS\Contracts\Widgets\PublicWidget;
+use App\CMS\Widgets\Contracts\WidgetRenderer;
+use App\CMS\Widgets\Exceptions\MissingParameterException;
+use App\Models\Widgets\Widget;
+
+class HtmlCode implements PublicWidget
+{
+    /**
+     * Name getter
+     *
+     * @return string
+     */
+    public static function getName()
+    {
+        return 'widgets/htmlCode.widgetName';
+    }
+
+    /**
+     * Getter for description
+     *
+     * @return string
+     */
+    public static function getDescription()
+    {
+        return 'widgets/htmlCode.widgetDescription';
+    }
+
+    /**
+     * Getter for presenter/renderer of this widget
+     *
+     * @return WidgetRenderer
+     */
+    public static function getPresenter()
+    {
+        return Presenters\HtmlCode::class;
+    }
+
+    /**
+     * @param Widget    $widget
+     * @param \stdClass $data
+     *
+     * @return Widget
+     * @throws MissingParameterException
+     */
+    public static function save(Widget $widget, \stdClass $data)
+    {
+        if (!isset($data->code) || empty($data->code)) {
+            throw new MissingParameterException('code');
+        }
+
+        $widgetSettings = [
+            'code'           => $data->code,
+            'containerClass' => isset($data->containerClass) ? $data->containerClass : ''
+        ];
+
+        $widget->settings = json_encode($widgetSettings);
+
+        return $widget;
+    }
+}

app/CMS/Widgets/HtmlCode/Presenters/HtmlCode.php

@@ -0,0 +1,58 @@
+<?php
+namespace App\CMS\Widgets\HtmlCode\Presenters;
+
+use App\Models\Widgets\Widget;
+use App\Models\Widgets\WidgetType;
+use App\CMS\Contracts\Widgets\WidgetRenderer;
+
+class HtmlCode implements WidgetRenderer
+{
+    /**
+     * Method used for displaying widget.
+     *
+     * This method renders some HTML code for displaying.
+     *
+     * @param Widget $widget
+     *
+     * @return mixed
+     */
+    public static function render(Widget $widget)
+    {
+        $settings = $widget->settings;
+        $code = '
+            <div class="html-code-widget ' . $widget->container_class . '">
+            ' . $settings->code . '
+            </div>';
+
+        return $code;
+    }
+
+    /**
+     * Display form for creating new instance of widget
+     *
+     * @param WidgetType $type
+     *
+     * @return mixed
+     */
+    public static function renderAddForm(WidgetType $type)
+    {
+        return view('admin.widgets.htmlCode.new', [
+            'type'     => $type,
+            'widget'   => new Widget(),
+            'settings' => new \stdClass()
+        ]);
+    }
+
+    /**
+     * Display form for editing already existing widget
+     *
+     * @param Widget $widget
+     *
+     * @return mixed
+     */
+    public static function renderEditForm(Widget $widget)
+    {
+        $settings = json_decode($widget->settings);
+        return view('admin.widgets.htmlCode.edit', ['widget' => $widget, 'settings' => $settings]);
+    }
+}

app/CMS/Widgets/Menu/Extensions/URL.php

@@ -0,0 +1,36 @@
+<?php
+namespace App\CMS\Widgets\Menu\Extensions;
+
+use App\CMS\Widgets\Contracts\MenuExtensionHandler;
+
+class URL implements MenuExtensionHandler {
+    public function getPossibleValues()
+    {
+        return '*';
+    }
+
+    public function getId()
+    {
+        return 'url';
+    }
+
+    public function getName()
+    {
+        return trans('widgets/menu.extensionURL');
+    }
+
+    public function getDescription()
+    {
+        return trans('widgets/menu.extensionURLDescription');
+    }
+
+    public function getFormExtensionTemplate()
+    {
+        return 'admin.widgets.menu.extensions.url';
+    }
+
+    public function save()
+    {
+        // TODO: Implement save() method.
+    }
+}

app/CMS/Widgets/Menu/Menu.php

@@ -0,0 +1,93 @@
+<?php
+namespace App\CMS\Widgets\Menu;
+
+use App\CMS\Contracts\Widgets\PublicWidget;
+use App\CMS\Widgets\Contracts\WidgetRenderer;
+use App\CMS\Widgets\Exceptions\MissingParameterException;
+use App\Models\Content\Content;
+use App\Models\Widgets\Widget;
+use Mcamara\LaravelLocalization\Facades\LaravelLocalization;
+
+class Menu implements PublicWidget
+{
+    /**
+     * Name getter
+     *
+     * @return string
+     */
+    public static function getName()
+    {
+        return 'widgets/menu.widgetName';
+    }
+
+    /**
+     * Getter for description
+     *
+     * @return string
+     */
+    public static function getDescription()
+    {
+        return 'widgets/menu.widgetDescription';
+    }
+
+    /**
+     * Getter for presenter/renderer of this widget
+     *
+     * @return WidgetRenderer
+     */
+    public static function getPresenter()
+    {
+        return Presenters\Menu::class;
+    }
+
+    /**
+     * @param \App\Models\Widget $widget
+     * @param \stdClass          $data
+     *
+     * @return mixed
+     */
+    public static function save(Widget $widget, \stdClass $data)
+    {
+        if (!isset($data->settings) || empty($data->settings) || !json_decode($data->settings)) {
+            throw new MissingParameterException('settings');
+        }
+
+        $links = json_decode($data->settings);
+        $pages = self::selectContentPages(array_keys((array)$links));
+
+        foreach ($links as $link) {
+            if (!isset($pages[$link->id])) {
+                unset($links->{$link->id});
+            }
+        }
+
+        $settings = [
+            'links'          => $links,
+            'containerClass' => $data->containerClass
+        ];
+
+        $widget->settings = json_encode($settings);
+
+        return $widget;
+    }
+
+    public static function selectContentPages($ids)
+    {
+        $allowedStatuses = [Content::STATUS_PUBLIC];
+
+        if (\Auth::user()) {
+            $allowedStatuses[] = Content::STATUS_PROTECTED;
+        }
+
+        $pages = Content::where('language', LaravelLocalization::getCurrentLocale())
+                        ->whereIn('id', $ids)
+                        ->whereIn('status', $allowedStatuses)
+                        ->get();
+        $used = [];
+        foreach ($pages as $page) {
+            $used[$page->id] = $page;
+        }
+
+        return $used;
+    }
+}

app/CMS/Widgets/Menu/Presenters/Menu.php

@@ -0,0 +1,133 @@
+<?php
+namespace App\CMS\Widgets\Menu\Presenters;
+
+use App\CMS\Contracts\Widgets\WidgetRenderer;
+use App\CMS\Widgets\Menu\Menu as WidgetMenu;
+use App\Models\Content\Content;
+use App\Models\Widgets\Widget;
+use App\Models\Widgets\WidgetType;
+use Illuminate\Support\Facades\App;
+use Illuminate\Support\Facades\Request;
+use Illuminate\Support\Facades\Route;
+
+class Menu implements WidgetRenderer
+{
+    /**
+     * Method used for displaying widget.
+     *
+     * This method renders some HTML code for displaying.
+     *
+     * @param Widget $widget
+     *
+     * @return mixed
+     */
+    public static function render(Widget $widget)
+    {
+        $settings = $widget->settings;
+        $links = (array)$settings->links;
+        $pageIds = array_keys($links);
+
+        // get pages
+        $pages = WidgetMenu::selectContentPages($pageIds);
+
+        // sort links using "order"
+        uasort($links, function ($a, $b) {
+            return $a->order - $b->order;
+        });
+
+        $route = Request::route()
+                        ->getName();
+        $parameters = Route::current()
+                           ->parameters();
+
+        $code = '<ul class="menu ' . $widget->container_class . '"';
+
+        if ($widget->container_id) {
+            $code .= ' id="' . e($widget->container_id) . '"';
+        }
+
+        $code .= '>';
+
+        foreach ($links as $pageId => $link) {
+            if (!isset($pages[$pageId])) {
+                continue;
+            }
+
+            $page = $pages[$pageId];
+            $active = ($page->is_homepage && $route == 'page.index') || ($route == 'page.content' && isset($parameters['url']) && $parameters['url'] == $page->url);
+            $route = $page->is_homepage ? route('page.index') : route('page.content', ['url' => $page->url]);
+
+            $code .= '<li';
+            if ($active) {
+                $code .= ' class="is-active active"';
+            }
+            $code .= '><a href="' . $route . '">' . e($page->title) . '</a></li>';
+        }
+
+        $code .= "</ul>";
+
+        return $code;
+    }
+
+    /**
+     * Display form for creating new instance of widget
+     *
+     * @param WidgetType $type
+     *
+     * @return mixed
+     */
+    public static function renderAddForm(WidgetType $type)
+    {
+        $extensions = App::make('registerMenuExtension')
+                         ->get();
+
+        $widget = new Widget();
+        $content = new Content();
+
+        // get list of all pages
+        $pages = $content->getOverview()
+                         ->get();
+
+        $widget->settingsObj = new \stdClass();
+        $widget->settingsObj->links = new \stdClass();
+
+        return view('admin.widgets.menu.new', [
+            'type'       => $type,
+            'widget'     => $widget,
+            'pages'      => $pages,
+            'extensions' => $extensions
+        ]);
+    }
+
+    /**
+     * Display form for editing already existing widget
+     *
+     * @param Widget $widget
+     *
+     * @return mixed
+     */
+    public static function renderEditForm(Widget $widget)
+    {
+        $content = new Content();
+
+        // get list of all pages
+        $pages = $content->getOverview()
+                         ->get();
+
+        // make object from JSON
+        if (!isset($widget->settings->links)) {
+            $links = new \stdClass();
+        } else {
+            $links = (array)$widget->settings->links;
+        }
+
+        // sort links using "order"
+        uasort($links, function ($a, $b) {
+            return $a->order - $b->order;
+        });
+
+        $widget->settings->links = (object)$links;
+
+        return view('admin.widgets.menu.edit', ['widget' => $widget, 'pages' => $pages]);
+    }
+}