Yii debugger WIP

framework/yii/debug/panels/ProfilingPanel.php

@@ -0,0 +1,85 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\debug\panels;
+
+use Yii;
+use yii\debug\Panel;
+use yii\helpers\Html;
+use yii\log\Logger;
+
+/**
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class ProfilingPanel extends Panel
+{
+	public function getName()
+	{
+		return 'Profiling';
+	}
+
+	public function getDetail()
+	{
+		$messages = $this->data['messages'];
+		$timings = array();
+		$stack = array();
+		foreach ($messages as $i => $log) {
+			list($token, $level, $category, $timestamp) = $log;
+			$log[4] = $i;
+			if ($level == Logger::LEVEL_PROFILE_BEGIN) {
+				$stack[] = $log;
+			} elseif ($level == Logger::LEVEL_PROFILE_END) {
+				if (($last = array_pop($stack)) !== null && $last[0] === $token) {
+					$timings[$last[4]] = array(count($stack), $token, $category, $timestamp - $last[3]);
+				}
+			}
+		}
+
+		$now = microtime(true);
+		while (($last = array_pop($stack)) !== null) {
+			$delta = $now - $last[3];
+			$timings[$last[4]] = array(count($stack), $last[0], $last[2], $delta);
+		}
+		ksort($timings);
+
+		$rows = array();
+		foreach ($timings as $timing) {
+			$time = sprintf('%0.5f', $timing[3]);
+			$procedure = str_repeat('&nbsp;', $timing[0] * 4) . Html::encode($timing[1]);
+			$category = Html::encode($timing[2]);
+			$rows[] = "<tr><td>$category</td><td>$procedure</td><td>{$time}s</td>";
+		}
+		$rows = implode("\n", $rows);
+
+		return <<<EOD
+<h1>Performance Profiling</h1>
+
+<table class="table table-condensed table-bordered table-striped table-hover" style="table-layout: fixed;">
+<thead>
+<tr>
+	<th>Category</th>
+	<th>Procedure</th>
+	<th>Time</th>
+</tr>
+</thead>
+<tbody>
+$rows
+</tbody>
+</table>
+EOD;
+	}
+
+	public function save()
+	{
+		$target = $this->module->logTarget;
+		$messages = $target->filterMessages($target->messages, Logger::LEVEL_PROFILE);
+		return array(
+			'messages' => $messages,
+		);
+	}
+}