/lib/Cake/View/ViewBlock.php - pictcode - Redmine

pictcode / lib / Cake / View / ViewBlock.php @ 1368d528

       <?php
       /**
        * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
        * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+       *
        * Licensed under The MIT License
        * For full copyright and license information, please see the LICENSE.txt
        * Redistributions of files must retain the above copyright notice.
+       *
        * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
        * @link          http://cakephp.org CakePHP(tm) Project
        * @since         CakePHP(tm) v2.1
        * @license       http://www.opensource.org/licenses/mit-license.php MIT License
        */
       /**
        * ViewBlock implements the concept of Blocks or Slots in the View layer.
        * Slots or blocks are combined with extending views and layouts to afford slots
        * of content that are present in a layout or parent view, but are defined by the child
        * view or elements used in the view.
+       *
        * @package Cake.View
        */
       class ViewBlock {
       /**
        * Append content
+       *
        * @var string
        */
               const APPEND = 'append';
       /**
        * Prepend content
+       *
        * @var string
        */
               const PREPEND = 'prepend';
       /**
        * Block content. An array of blocks indexed by name.
+       *
        * @var array
        */
               protected $_blocks = array();
       /**
        * The active blocks being captured.
+       *
        * @var array
        */
               protected $_active = array();
       /**
        * Should the currently captured content be discarded on ViewBlock::end()
+       *
        * @var bool
        * @see ViewBlock::end()
        * @see ViewBlock::startIfEmpty()
        */
               protected $_discardActiveBufferOnEnd = false;
       /**
        * Start capturing output for a 'block'
+       *
        * Blocks allow you to create slots or blocks of dynamic content in the layout.
        * view files can implement some or all of a layout's slots.
+       *
        * You can end capturing blocks using View::end(). Blocks can be output
        * using View::get();
+       *
        * @param string $name The name of the block to capture for.
        * @throws CakeException When starting a block twice
        * @return void
        */
               public function start($name) {
                       if (in_array($name, $this->_active)) {
                               throw new CakeException(__d('cake', "A view block with the name '%s' is already/still open.", $name));
+                      }
                       $this->_active[] = $name;
                       ob_start();
+              }
       /**
        * Start capturing output for a 'block' if it is empty
+       *
        * Blocks allow you to create slots or blocks of dynamic content in the layout.
        * view files can implement some or all of a layout's slots.
+       *
        * You can end capturing blocks using View::end(). Blocks can be output
        * using View::get();
+       *
        * @param string $name The name of the block to capture for.
        * @return void
        */
               public function startIfEmpty($name) {
                       if (empty($this->_blocks[$name])) {
                               return $this->start($name);
+                      }
                       $this->_discardActiveBufferOnEnd = true;
                       ob_start();
+              }
       /**
        * End a capturing block. The compliment to ViewBlock::start()
+       *
        * @return void
        * @see ViewBlock::start()
        */
               public function end() {
                       if ($this->_discardActiveBufferOnEnd) {
                               $this->_discardActiveBufferOnEnd = false;
                               ob_end_clean();
                               return;
+                      }
                       if (!empty($this->_active)) {
                               $active = end($this->_active);
                               $content = ob_get_clean();
                               if (!isset($this->_blocks[$active])) {
                                       $this->_blocks[$active] = '';
+                              }
                               $this->_blocks[$active] .= $content;
                               array_pop($this->_active);
+                      }
+              }
       /**
        * Concat content to an existing or new block.
        * Concating to a new block will create the block.
+       *
        * Calling concat() without a value will create a new capturing
        * block that needs to be finished with View::end(). The content
        * of the new capturing context will be added to the existing block context.
+       *
        * @param string $name Name of the block
        * @param mixed $value The content for the block
        * @param string $mode If ViewBlock::APPEND content will be appended to existing content.
        *   If ViewBlock::PREPEND it will be prepended.
        * @return void
        */
               public function concat($name, $value = null, $mode = ViewBlock::APPEND) {
                       if (isset($value)) {
                               if (!isset($this->_blocks[$name])) {
                                       $this->_blocks[$name] = '';
+                              }
                               if ($mode === ViewBlock::PREPEND) {
                                       $this->_blocks[$name] = $value . $this->_blocks[$name];
                               } else {
                                       $this->_blocks[$name] .= $value;
+                              }
                       } else {
                               $this->start($name);
+                      }
+              }
       /**
        * Append to an existing or new block. Appending to a new
        * block will create the block.
+       *
        * Calling append() without a value will create a new capturing
        * block that needs to be finished with View::end(). The content
        * of the new capturing context will be added to the existing block context.
+       *
        * @param string $name Name of the block
        * @param string $value The content for the block.
        * @return void
        * @deprecated 3.0.0 As of 2.3 use ViewBlock::concat() instead.
        */
               public function append($name, $value = null) {
                       $this->concat($name, $value);
+              }
       /**
        * Set the content for a block. This will overwrite any
        * existing content.
+       *
        * @param string $name Name of the block
        * @param mixed $value The content for the block.
        * @return void
        */
               public function set($name, $value) {
                       $this->_blocks[$name] = (string)$value;
+              }
       /**
        * Get the content for a block.
+       *
        * @param string $name Name of the block
        * @param string $default Default string
        * @return string The block content or $default if the block does not exist.
        */
               public function get($name, $default = '') {
                       if (!isset($this->_blocks[$name])) {
                               return $default;
+                      }
                       return $this->_blocks[$name];
+              }
       /**
        * Check if a block exists
+       *
        * @param string $name Name of the block
        * @return bool
        */
               public function exists($name) {
                       return isset($this->_blocks[$name]);
+              }
       /**
        * Get the names of all the existing blocks.
+       *
        * @return array An array containing the blocks.
        */
               public function keys() {
                       return array_keys($this->_blocks);
+              }
       /**
        * Get the name of the currently open block.
+       *
        * @return mixed Either null or the name of the last open block.
        */
               public function active() {
                       return end($this->_active);
+              }
       /**
        * Get the names of the unclosed/active blocks.
+       *
        * @return array An array of unclosed blocks.
        */
               public function unclosed() {
                       return $this->_active;
+              }
+      }