jnf_welcometext.php

<?php
if (!defined('_PS_VERSION_')) {
    exit;
}

class Jnf_Welcometext extends Module
{
    public function __construct()
    {
        $this->name = 'jnf_welcometext';
        $this->tab = 'front_office_features';
        $this->version = '1.0.0';
        $this->author = 'JnfDev';
        $this->need_instance = 0;
        $this->ps_versions_compliancy = [
            'min' => '1.7',
            'max' => _PS_VERSION_
        ];
        $this->bootstrap = true;

        parent::__construct();

        $this->displayName = $this->trans('Welcome Text', [], 'Modules.Jnfwelcometext.Jnfwelcometext');
        $this->description = $this->trans('This plugins show two customizable messages at the Front-end. This plugin is an "admission test" for Interfell.', [], 'Modules.Jnfwelcometext.Jnfwelcometext');

        $this->confirmUninstall = $this->trans('Are you sure you want to uninstall?', [], 'Modules.Jnfwelcometext.Jnfwelcometext');
    }
    
    public function install()
    {
        return parent::install() &&
            $this->registerHook('displayHome') &&
            $this->registerHook('displayFooterBefore');
    }

    public function uninstall()
    {
        return parent::uninstall();
    }

    public function isUsingNewTranslationSystem()
    {
        return true;
    }

    /** Hooks */

    public function hookDisplayHome($params)
    {
        $currentLangId = $this->context->language->id;

        if ( isset( $params['hook'] ) && $params['hook'] === 'displayFooterBefore' ) {
            $welcomeText = Tools::htmlentitiesDecodeUTF8(Configuration::get('JNF_WELCOMETEXT_FOOTER', $currentLangId));
        } else {
            $welcomeText = Tools::htmlentitiesDecodeUTF8(Configuration::get('JNF_WELCOMETEXT_HOME', $currentLangId));
        }

        $this->context->smarty->assign([
            'welcome_text' => $welcomeText,
        ]);

        return $this->display(__FILE__, 'welcome-text.tpl');
    }

    public function hookDisplayFooterBefore($params)
    {
        $params['hook'] = 'displayFooterBefore';

        return $this->hookDisplayHome( $params );
    }

    /** Admin Configuration Page */

    public function getContent()
    {
        $output = null;

        if (Tools::isSubmit('submit'.$this->name)) {

            $welcomeTextHome   = array();
            $welcomeTextFooter = array();

            $languages =  $this->context->controller->getLanguages();
            foreach ($languages as $lang) {
                $welcomeTextHome[$lang['id_lang']]   = Tools::safeOutput(Tools::getValue("JNF_WELCOMETEXT_HOME_". $lang['id_lang']), true);
                $welcomeTextFooter[$lang['id_lang']] = Tools::safeOutput(Tools::getValue("JNF_WELCOMETEXT_FOOTER_". $lang['id_lang']), true);
            }

            Configuration::updateValue('JNF_WELCOMETEXT_HOME', $welcomeTextHome);
            Configuration::updateValue('JNF_WELCOMETEXT_FOOTER', $welcomeTextFooter);

            $output .= $this->displayConfirmation($this->trans('Settings updated', [], 'Modules.Jnfwelcometext.Jnfwelcometext'));

        }

        return $output.$this->displayForm();
    }

    public function displayForm()
    {
        // Get default language
        $defaultLang = (int)Configuration::get('PS_LANG_DEFAULT');

        // Init Fields form array
        $fieldsForm[0]['form'] = [
            'legend' => [
                'title' => $this->trans('Welcome Texts', [], 'Modules.Jnfwelcometext.Jnfwelcometext'),
            ],
            'input' => [
                [
                    'type'         => 'textarea',
                    'label'        => $this->trans('Welcome Text Home', [], 'Modules.Jnfwelcometext.Jnfwelcometext'),
                    'name'         => 'JNF_WELCOMETEXT_HOME',
                    'lang'         => true,
                    'autoload_rte' => true
                ],
                [
                    'type'         => 'textarea',
                    'label'        => $this->trans('Welcome Text Footer', [], 'Modules.Jnfwelcometext.Jnfwelcometext'),
                    'name'         => 'JNF_WELCOMETEXT_FOOTER',
                    'lang'         => true,
                    'autoload_rte' => true
                ]
            ],
            'submit' => [
                'title' => $this->trans('Save', [], 'Modules.Jnfwelcometext.Jnfwelcometext'),
                'class' => 'btn btn-default pull-right'
            ]
        ];

        $helper = new HelperForm();

        // Module, token and currentIndex
        $helper->module = $this;
        $helper->name_controller = $this->name;
        $helper->token = Tools::getAdminTokenLite('AdminModules');
        $helper->currentIndex = AdminController::$currentIndex.'&configure='.$this->name;

        // Language
        $helper->default_form_language = $defaultLang;
        $helper->allow_employee_form_lang = $defaultLang;

        // Title and toolbar
        $helper->title = $this->displayName;
        $helper->show_toolbar = true;
        $helper->toolbar_scroll = true;
        $helper->submit_action = 'submit'.$this->name;
        $helper->toolbar_btn = [
            'save' => [
                'desc' => $this->trans('Save', [], 'Modules.Jnfwelcometext.Jnfwelcometext'),
                'href' => AdminController::$currentIndex.'&configure='.$this->name.'&save'.$this->name.
                '&token='.Tools::getAdminTokenLite('AdminModules'),
            ],
            'back' => [
                'href' => AdminController::$currentIndex.'&token='.Tools::getAdminTokenLite('AdminModules'),
                'desc' => $this->trans('Back to list', [], 'Modules.Jnfwelcometext.Jnfwelcometext')
            ]
        ];

        $helper->tpl_vars = array(
            'languages'    => $this->context->controller->getLanguages(),
            'id_language'  => $this->context->language->id,
            'fields_value' => $this->getConfigFormValues(),
        );

        return $helper->generateForm($fieldsForm);
    }

    public function getConfigFormValues()
    {
        $configVar = array();
        $languages =  $this->context->controller->getLanguages();

        foreach ($languages as $lang) {
            $idLang = (int) $lang['id_lang'];
            $configVar['JNF_WELCOMETEXT_HOME'][$idLang]   = Tools::htmlentitiesDecodeUTF8(Configuration::get('JNF_WELCOMETEXT_HOME', $idLang));
            $configVar['JNF_WELCOMETEXT_FOOTER'][$idLang] = Tools::htmlentitiesDecodeUTF8(Configuration::get('JNF_WELCOMETEXT_FOOTER', $idLang));
        }

        return $configVar;
    }

}