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<?php
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/**
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 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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 *
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 * Licensed under The MIT License
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 * Redistributions of files must retain the above copyright notice.
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 *
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 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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 * @link          http://cakephp.org CakePHP(tm) Project
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 * @since         DebugKit 2.1
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 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
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 */
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App::uses('DebugTimer', 'DebugKit.Lib');
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App::uses('DebugMemory', 'DebugKit.Lib');
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App::uses('Helper', 'View');
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/**
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 * Class DebugTimerHelper
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 *
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 * Tracks time and memory usage while rendering view.
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 *
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 */
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class DebugTimerHelper extends Helper {
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/**
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 * Set to true when rendering is complete.
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 * Used to not add timers for rendering the toolbar.
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 *
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 * @var boolean
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 */
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	protected $_renderComplete = false;
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/**
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 * Constructor
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 *
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 * @param View $View
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 * @param array $settings
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 */
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	public function __construct(View $View, $settings = array()) {
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		parent::__construct($View, $settings);
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		DebugTimer::start(
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			'viewRender',
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			__d('debug_kit', 'Rendering View')
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		);
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	}
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/**
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 * Sets a timer point before rendering a file.
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 *
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 * @param string $viewFile The view being rendered
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 */
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	public function beforeRenderFile($viewFile) {
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		if ($this->_renderComplete) {
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			return;
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		}
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		DebugTimer::start(
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			'render_' . basename($viewFile),
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			__d('debug_kit', 'Rendering %s',
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			Debugger::trimPath($viewFile))
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		);
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	}
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/**
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 * Stops the timer point before rendering a file.
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 *
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 * @param string $viewFile The view being rendered
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 * @param string $content The contents of the view.
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 */
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	public function afterRenderFile($viewFile, $content) {
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		if ($this->_renderComplete) {
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			return;
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		}
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		DebugTimer::stop('render_' . basename($viewFile));
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	}
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/**
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 * Stop timers for rendering.
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 *
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 * @param string $layoutFile
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 */
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	public function afterLayout($layoutFile) {
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		DebugTimer::stop('viewRender');
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		DebugTimer::stop('controllerRender');
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		DebugMemory::record(__d('debug_kit', 'View render complete'));
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		$this->_renderComplete = true;
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	}
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}