[*] FO : Layout & Template override

classes/controller/FrontController.php

@@ -536,11 +536,12 @@ class FrontControllerCore extends Controller
 		if ($this->context->getMobileDevice() == false && Tools::isSubmit('live_edit'))
 			$this->context->smarty->assign('live_edit', $this->getLiveEditFooter());
 
-		// handle 1.4 theme (with layout.tpl missing)
+
-		if ($this->context->getMobileDevice() != false || file_exists(_PS_THEME_DIR_.'layout.tpl'))
+        $layout = $this->getLayout();
+		if ($layout)
 		{
 			if ($this->template)
-				$this->context->smarty->assign('template', $this->context->smarty->fetch($this->template));
+				$this->context->smarty->display($layout);
 			else // For retrocompatibility with 1.4 controller
 			{
 				ob_start();
@@ -980,12 +981,71 @@ class FrontControllerCore extends Controller
 	 * This is overrided to manage is behaviour
 	 * if a customer access to the site with mobile device.
 	 */
-	public function setTemplate($template)
+	public function setTemplate($default_template)
 	{
 		if ($this->context->getMobileDevice() != false)
-			$this->setMobileTemplate($template);
+			$this->setMobileTemplate($default_template);
 		else
+        {
+            $template = $this->getOverrideTemplate();
+
+            if ($template)
 			    parent::setTemplate($template);
+            else
+                parent::setTemplate($default_template);
+        }
+	}
+
+    /**
+	 * Returns the template corresponding to the current page.
+	 * By default this method return false but could easily be overridden in a specific controller
+	 *
+     * @since 1.5
+     * @return bool
+     */
+    public function getOverrideTemplate()
+    {
+        return false;
+    }
+
+	/**
+	 * Returns the layout corresponding to the current page by using the override system
+	 * Ex:
+	 * On the url: http://localhost/index.php?id_product=1&controller=product, this method will
+	 * check if the layout exists in the following files (in that order), and return the first found:
+	 * - /themes/default/override/layout-product-1.tpl
+	 * - /themes/default/override/layout-product.tpl
+	 * - /themes/default/layout.tpl
+	 *
+	 * @since 1.5
+	 * @return bool|string
+	 */
+    public function getLayout()
+    {
+		$entity = Tools::getValue('controller');
+		$id_item = (int)Tools::getValue('id_'.$entity);
+
+		$layout_dir = _PS_THEME_DIR_;
+		$layout_override_dir  = _PS_THEME_OVERRIDE_DIR_;
+		if ($this->context->getMobileDevice() != false)
+		{
+			$layout_dir = _PS_THEME_MOBILE_DIR_;
+			$layout_override_dir = _PS_THEME_MOBILE_OVERRIDE_DIR_;
+		}
+
+		$layout = false;
+		if ($entity)
+		{
+			if ($id_item > 0 && file_exists($layout_override_dir.'layout-'.$entity.'-'.$id_item.'.tpl'))
+				$layout = $layout_override_dir.'layout-'.$entity.'-'.$id_item.'.tpl';
+			elseif (file_exists($layout_override_dir.'layout-'.$entity.'.tpl'))
+				$layout = $layout_override_dir.'layout-'.$entity.'.tpl';
+		}
+
+		if (!$layout && file_exists($layout_dir.'layout.tpl'))
+			$layout = $layout_dir.'layout.tpl';
+
+		return $layout;
     }
 
 	/**

config/defines_uri.inc.php

@@ -32,12 +32,14 @@ define('_THEME_DIR_',      _THEMES_DIR_._THEME_NAME_.'/');
 define('_THEME_IMG_DIR_',  _THEME_DIR_.'img/');
 define('_THEME_CSS_DIR_',  _THEME_DIR_.'css/');
 define('_THEME_JS_DIR_',   _THEME_DIR_.'js/');
+define('_THEME_OVERRIDE_DIR_', _PS_THEME_DIR_.'override/');
 
 /* For mobile devices */
 if (file_exists(_PS_THEME_DIR_.'mobile/'))
 {
 	define('_PS_THEME_MOBILE_DIR_', _PS_THEME_DIR_.'mobile/');
 	define('_THEME_MOBILE_DIR_', _THEMES_DIR_._THEME_NAME_.'/mobile/');
+	define('_THEME_MOBILE_OVERRIDE_DIR_', _PS_THEME_MOBILE_DIR_.'override/');
 }
 else
 {

controllers/admin/AdminTranslationsController.php

@@ -929,22 +929,32 @@ class AdminTranslationsControllerCore extends AdminController
 	{
 		$missing_translations_front = array();
 		$_LANG = $this->fileExists(_PS_THEME_DIR_.'lang', Tools::strtolower($lang).'.php', '_LANG');
-		$str_output = '';
 
 		/* List templates to parse */
-		$templates = array_merge(scandir(_PS_THEME_DIR_), scandir(_PS_ALL_THEMES_DIR_));
+		$templates_per_directory = array(
+			_PS_THEME_DIR_ => scandir(_PS_THEME_DIR_),
+			_PS_THEME_OVERRIDE_DIR_ => scandir(_PS_THEME_OVERRIDE_DIR_),
+			_PS_ALL_THEMES_DIR_ => scandir(_PS_ALL_THEMES_DIR_)
+		);
 		$count = 0;
 		$tabs_array = array();
-		foreach ($templates as $template)
+		foreach ($templates_per_directory as $template_dir => $templates)
-			if (preg_match('/^(.*).tpl$/', $template) && (file_exists($tpl = _PS_THEME_DIR_.$template) || file_exists($tpl = _PS_ALL_THEMES_DIR_.$template)))
 		{
-				$prefix_key = substr(basename($template), 0, -4);
+			$prefix = '';
+			if ($template_dir == _THEME_OVERRIDE_DIR_)
+				$prefix = 'override_';
+
+			foreach ($templates as $template)
+			{
+				if (preg_match('/^(.*).tpl$/', $template) && (file_exists($tpl = $template_dir.$template)))
+				{
+					$prefix_key = $prefix.substr(basename($template), 0, -4);
 					$new_lang = array();
 					$fd = fopen($tpl, 'r');
 					$content = fread($fd, filesize($tpl));
 
 					/* Search language tags (eg {l s='to translate'}) */
-				$regex = '/\{l s=\''._PS_TRANS_PATTERN_.'\'( sprintf=.*)?( js=1)?\}/U';
+					$regex = '/\{l s=\''._PS_TRANS_PATTERN_.'\'( js=1)?\}/U';
 					preg_match_all($regex, $content, $matches);
 
 					/* Get string translation */
@@ -952,7 +962,7 @@ class AdminTranslationsControllerCore extends AdminController
 					{
 						if (empty($key))
 						{
-						$this->errors[] = $this->l('Empty string found, please edit:').' <br />'._PS_THEME_DIR_.''.$template;
+							$this->errors[] = $this->l('Empty string found, please edit:').' <br />'.$template_dir.''.$template;
 							$new_lang[$key] = '';
 						}
 						else
@@ -978,6 +988,8 @@ class AdminTranslationsControllerCore extends AdminController
 					$tabs_array[$prefix_key] = $new_lang;
 					$count += count($new_lang);
 				}
+			}
+		}
 
 		$this->tpl_view_vars = array(
 			'lang' => Tools::strtoupper($lang),