/slim/Slim/View.php
PHP | 167 lines | 48 code | 12 blank | 107 comment | 9 complexity | ee50ff91e81b218dd47e52dc18800851 MD5 | raw file
Possible License(s): MIT, BSD-3-Clause, Apache-2.0, LGPL-2.1, LGPL-3.0, BSD-2-Clause
- <?php
- /**
- * Slim - a micro PHP 5 framework
- *
- * @author Josh Lockhart <info@joshlockhart.com>
- * @copyright 2011 Josh Lockhart
- * @link http://www.slimframework.com
- * @license http://www.slimframework.com/license
- * @version 1.5.0
- *
- * MIT LICENSE
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
- /**
- * Slim View
- *
- * The View is responsible for rendering and/or displaying a template.
- * It is recommended that you subclass View and re-implement the
- * `View::render` method to use a custom templating engine such as
- * Smarty, Twig, Mustache, etc. It is important that `View::render`
- * `return` the final template output. Do not `echo` the output.
- *
- * @package Slim
- * @author Josh Lockhart <info@joshlockhart.com>
- * @since Version 1.0
- */
- class Slim_View {
- /**
- * @var array Key-value array of data available to the template
- */
- protected $data = array();
- /**
- * @var string Absolute or relative path to the templates directory
- */
- protected $templatesDirectory;
- /**
- * Constructor
- *
- * This is empty but may be overridden in a subclass
- */
- public function __construct() {}
- /**
- * Get data
- * @param string $key
- * @return array|mixed|null All View data if no $key, value of datum
- * if $key, or NULL if $key but datum
- * does not exist.
- */
- public function getData( $key = null ) {
- if ( !is_null($key) ) {
- return isset($this->data[$key]) ? $this->data[$key] : null;
- } else {
- return $this->data;
- }
- }
- /**
- * Set data
- *
- * This method is overloaded to accept two different method signatures.
- * You may use this to set a specific key with a specfic value,
- * or you may use this to set all data to a specific array.
- *
- * USAGE:
- *
- * View::setData('color', 'red');
- * View::setData(array('color' => 'red', 'number' => 1));
- *
- * @param string|array
- * @param mixed Optional. Only use if first argument is a string.
- * @return void
- * @throws InvalidArgumentException If incorrect method signature
- */
- public function setData() {
- $args = func_get_args();
- if ( count($args) === 1 && is_array($args[0]) ) {
- $this->data = $args[0];
- } else if ( count($args) === 2 ) {
- $this->data[(string)$args[0]] = $args[1];
- } else {
- throw new InvalidArgumentException('Cannot set View data with provided arguments. Usage: `View::setData( $key, $value );` or `View::setData([ key => value, ... ]);`');
- }
- }
- /**
- * Append data to existing View data
- * @param array $data
- * @return void
- */
- public function appendData( array $data ) {
- $this->data = array_merge($this->data, $data);
- }
- /**
- * Get templates directory
- * @return string|null Path to templates directory without trailing slash
- */
- public function getTemplatesDirectory() {
- return $this->templatesDirectory;
- }
- /**
- * Set templates directory
- * @param string $dir
- * @return void
- * @throws RuntimeException If directory is not a directory or does not exist
- */
- public function setTemplatesDirectory( $dir ) {
- if ( !is_dir($dir) ) {
- throw new RuntimeException('Cannot set View templates directory to: ' . $dir . '. Directory does not exist.');
- }
- $this->templatesDirectory = rtrim($dir, '/');
- }
- /**
- * Display template
- *
- * This method echoes the rendered template to the current output buffer
- *
- * @param string $template Path to template file relative to templates directoy
- * @return void
- */
- public function display( $template ) {
- echo $this->render($template);
- }
- /**
- * Render template
- * @param string $template Path to template file relative to templates directory
- * @return string Rendered template
- * @throws RuntimeException If template does not exist
- */
- public function render( $template ) {
- extract($this->data);
- $templatePath = $this->getTemplatesDirectory() . '/' . ltrim($template, '/');
- if ( !file_exists($templatePath) ) {
- throw new RuntimeException('View cannot render template `' . $templatePath . '`. Template does not exist.');
- }
- ob_start();
- require $templatePath;
- return ob_get_clean();
- }
- }