150 lines
4.4 KiB
PHP
150 lines
4.4 KiB
PHP
<?php
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/*
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* Template engine wrapper
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*/
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namespace Sakura;
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use Twig_Environment;
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use Twig_Extension_StringLoader;
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use Twig_Loader_Filesystem;
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/**
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* Class Template
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* @package Sakura
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*/
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class Template
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{
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// Engine container, template folder name, options and template variables
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private $vars = [];
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private $template;
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private $templateName;
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private $templateOptions;
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private $fallback;
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private $fallbackName;
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private $fallbackOptions;
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// Initialise templating engine and data
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public function __construct()
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{
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// Set template to default
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$this->setTemplate(Configuration::getConfig('site_style'));
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// Set a fallback
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$this->setFallback(Configuration::getConfig('site_style'));
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}
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// Set a template name
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public function setTemplate($name)
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{
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// Assign config path to a variable so we don't have to type it out twice
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$confPath = ROOT . '_sakura/templates/' . $name . '/template.ini';
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// Check if the configuration file exists
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if (!file_exists($confPath)) {
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trigger_error('Template configuration does not exist', E_USER_ERROR);
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}
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// Parse and store the configuration
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$this->templateOptions = parse_ini_file($confPath, true);
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// Make sure we're not using a manage template for the main site or the other way around
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if (defined('SAKURA_MANAGE') && (bool) $this->templateOptions['manage']['mode'] != (bool) SAKURA_MANAGE) {
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trigger_error('Incorrect template type', E_USER_ERROR);
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}
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// Set variables
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$this->templateName = $name;
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// Reinitialise
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$this->initTemplate();
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}
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// Initialise main template engine
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public function initTemplate()
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{
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// Initialise Twig Filesystem Loader
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$twigLoader = new Twig_Loader_Filesystem(ROOT . '_sakura/templates/' . $this->templateName);
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// Environment variable
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$twigEnv = [];
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// Enable caching
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if (Configuration::getConfig('enable_tpl_cache')) {
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$twigEnv['cache'] = ROOT . 'cache';
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}
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// And now actually initialise the templating engine
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$this->template = new Twig_Environment($twigLoader, $twigEnv);
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// Load String template loader
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$this->template->addExtension(new Twig_Extension_StringLoader());
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}
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// Set a fallback
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private function setFallback($name)
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{
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// Assign config path to a variable so we don't have to type it out twice
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$confPath = ROOT . '_sakura/templates/' . $name . '/template.ini';
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// Check if the configuration file exists
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if (!file_exists($confPath)) {
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trigger_error('Template configuration does not exist', E_USER_ERROR);
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}
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// Parse and store the configuration
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$this->fallbackOptions = parse_ini_file($confPath, true);
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// Make sure we're not using a manage template for the main site or the other way around
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if (defined('SAKURA_MANAGE') && (bool) $this->fallbackOptions['manage']['mode'] != (bool) SAKURA_MANAGE) {
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trigger_error('Incorrect template type', E_USER_ERROR);
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}
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// Set variables
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$this->fallbackName = $name;
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// Reinitialise
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$this->initFallback();
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}
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// Initialise main fallback engine
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public function initFallback()
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{
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// Initialise Twig Filesystem Loader
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$twigLoader = new Twig_Loader_Filesystem(ROOT . '_sakura/templates/' . $this->fallbackName);
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// Environment variable
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$twigEnv = [];
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// Enable caching
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if (Configuration::getConfig('enable_tpl_cache')) {
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$twigEnv['cache'] = ROOT . 'cache';
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}
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// And now actually initialise the templating engine
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$this->fallback = new Twig_Environment($twigLoader, $twigEnv);
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// Load String template loader
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$this->fallback->addExtension(new Twig_Extension_StringLoader());
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}
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// Set variables
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public function setVariables($vars)
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{
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$this->vars = array_merge($this->vars, $vars);
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}
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// Render a template
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public function render($file)
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{
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try {
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return $this->template->render($file, $this->vars);
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} catch (\Exception $e) {
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try {
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return $this->fallback->render($file, $this->vars);
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} catch (\Exception $e) {
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trigger_error($e->getMessage(), E_USER_ERROR);
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}
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}
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}
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}
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