source: branches/1.2/workflow/inc/log/Log/win.php @ 1349

Revision 1349, 8.3 KB checked in by niltonneto, 15 years ago (diff)

Ticket #561 - Inclusão do módulo Workflow faltante nessa versão.
  • Property svn:executable set to *
Line 
1<?php
2/**
3 * $Header: /repository/pear/Log/Log/win.php,v 1.21 2008/11/12 05:07:31 jon Exp $
4 *
5 * @version $Revision: 1.21 $
6 * @package Log
7 */
8
9/**
10 * The Log_win class is a concrete implementation of the Log abstract
11 * class that logs messages to a separate browser window.
12 *
13 * The concept for this log handler is based on part by Craig Davis' article
14 * entitled "JavaScript Power PHP Debugging:
15 *
16 *  http://www.zend.com/zend/tut/tutorial-DebugLib.php
17 *
18 * @author  Jon Parise <jon@php.net>
19 * @since   Log 1.7.0
20 * @package Log
21 *
22 * @example win.php     Using the window handler.
23 */
24class Log_win extends Log
25{
26    /**
27     * The name of the output window.
28     * @var string
29     * @access private
30     */
31    var $_name = 'LogWindow';
32
33    /**
34     * The title of the output window.
35     * @var string
36     * @access private
37     */
38    var $_title = 'Log Output Window';
39
40    /**
41     * Mapping of log priorities to styles.
42     * @var array
43     * @access private
44     */
45    var $_styles = array(
46                        PEAR_LOG_EMERG   => 'color: red;',
47                        PEAR_LOG_ALERT   => 'color: orange;',
48                        PEAR_LOG_CRIT    => 'color: yellow;',
49                        PEAR_LOG_ERR     => 'color: green;',
50                        PEAR_LOG_WARNING => 'color: blue;',
51                        PEAR_LOG_NOTICE  => 'color: indigo;',
52                        PEAR_LOG_INFO    => 'color: violet;',
53                        PEAR_LOG_DEBUG   => 'color: black;'
54                    );
55
56    /**
57     * String buffer that holds line that are pending output.
58     * @var array
59     * @access private
60     */
61    var $_buffer = array();
62
63    /**
64     * Constructs a new Log_win object.
65     *
66     * @param string $name     Ignored.
67     * @param string $ident    The identity string.
68     * @param array  $conf     The configuration array.
69     * @param int    $level    Log messages up to and including this level.
70     * @access public
71     */
72    function Log_win($name, $ident = '', $conf = array(),
73                          $level = PEAR_LOG_DEBUG)
74    {
75        $this->_id = md5(microtime());
76        $this->_name = str_replace(' ', '_', $name);
77        $this->_ident = $ident;
78        $this->_mask = Log::UPTO($level);
79
80        if (isset($conf['title'])) {
81            $this->_title = $conf['title'];
82        }
83        if (isset($conf['styles']) && is_array($conf['styles'])) {
84            $this->_styles = $conf['styles'];
85        }
86        if (isset($conf['colors']) && is_array($conf['colors'])) {
87            foreach ($conf['colors'] as $level => $color) {
88                $this->_styles[$level] .= "color: $color;";
89            }
90        }
91
92        register_shutdown_function(array(&$this, '_Log_win'));
93    }
94
95    /**
96     * Destructor
97     */
98    function _Log_win()
99    {
100        if ($this->_opened || (count($this->_buffer) > 0)) {
101            $this->close();
102        }
103    }
104
105    /**
106     * The first time open() is called, it will open a new browser window and
107     * prepare it for output.
108     *
109     * This is implicitly called by log(), if necessary.
110     *
111     * @access public
112     */
113    function open()
114    {
115        if (!$this->_opened) {
116            $win = $this->_name;
117            $styles = $this->_styles;
118
119            if (!empty($this->_ident)) {
120                $identHeader = "$win.document.writeln('<th>Ident</th>')";
121            } else {
122                $identHeader = '';
123            }
124
125            echo <<< EOT
126<script language="JavaScript">
127$win = window.open('', '{$this->_name}', 'toolbar=no,scrollbars,width=600,height=400');
128$win.document.writeln('<html>');
129$win.document.writeln('<head>');
130$win.document.writeln('<title>{$this->_title}</title>');
131$win.document.writeln('<style type="text/css">');
132$win.document.writeln('body { font-family: monospace; font-size: 8pt; }');
133$win.document.writeln('td,th { font-size: 8pt; }');
134$win.document.writeln('td,th { border-bottom: #999999 solid 1px; }');
135$win.document.writeln('td,th { border-right: #999999 solid 1px; }');
136$win.document.writeln('tr { text-align: left; vertical-align: top; }');
137$win.document.writeln('td.l0 { $styles[0] }');
138$win.document.writeln('td.l1 { $styles[1] }');
139$win.document.writeln('td.l2 { $styles[2] }');
140$win.document.writeln('td.l3 { $styles[3] }');
141$win.document.writeln('td.l4 { $styles[4] }');
142$win.document.writeln('td.l5 { $styles[5] }');
143$win.document.writeln('td.l6 { $styles[6] }');
144$win.document.writeln('td.l7 { $styles[7] }');
145$win.document.writeln('</style>');
146$win.document.writeln('</head>');
147$win.document.writeln('<body>');
148$win.document.writeln('<table border="0" cellpadding="2" cellspacing="0">');
149$win.document.writeln('<tr><th>Time</th>');
150$identHeader
151$win.document.writeln('<th>Priority</th><th width="100%">Message</th></tr>');
152</script>
153EOT;
154            $this->_opened = true;
155        }
156
157        return $this->_opened;
158    }
159
160    /**
161     * Closes the output stream if it is open.  If there are still pending
162     * lines in the output buffer, the output window will be opened so that
163     * the buffer can be drained.
164     *
165     * @access public
166     */
167    function close()
168    {
169        /*
170         * If there are still lines waiting to be written, open the output
171         * window so that we can drain the buffer.
172         */
173        if (!$this->_opened && (count($this->_buffer) > 0)) {
174            $this->open();
175        }
176
177        if ($this->_opened) {
178            $this->_writeln('</table>');
179            $this->_writeln('</body></html>');
180            $this->_opened = false;
181        }
182
183        return ($this->_opened === false);
184    }
185
186    /**
187     * Writes a single line of text to the output window.
188     *
189     * @param string    $line   The line of text to write.
190     *
191     * @access private
192     */
193    function _writeln($line)
194    {
195        /* Add this line to our output buffer. */
196        $this->_buffer[] = $line;
197
198        /* Buffer the output until this page's headers have been sent. */
199        if (!headers_sent()) {
200            return;
201        }
202
203        /* If we haven't already opened the output window, do so now. */
204        if (!$this->_opened && !$this->open()) {
205            return false;
206        }
207
208        /* Drain the buffer to the output window. */
209        $win = $this->_name;
210        foreach ($this->_buffer as $line) {
211            echo "<script language='JavaScript'>\n";
212            echo "$win.document.writeln('" . addslashes($line) . "');\n";
213            echo "self.focus();\n";
214            echo "</script>\n";
215        }
216
217        /* Now that the buffer has been drained, clear it. */
218        $this->_buffer = array();
219    }
220
221    /**
222     * Logs $message to the output window.  The message is also passed along
223     * to any Log_observer instances that are observing this Log.
224     *
225     * @param mixed  $message  String or object containing the message to log.
226     * @param string $priority The priority of the message.  Valid
227     *                  values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
228     *                  PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
229     *                  PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
230     * @return boolean  True on success or false on failure.
231     * @access public
232     */
233    function log($message, $priority = null)
234    {
235        /* If a priority hasn't been specified, use the default value. */
236        if ($priority === null) {
237            $priority = $this->_priority;
238        }
239
240        /* Abort early if the priority is above the maximum logging level. */
241        if (!$this->_isMasked($priority)) {
242            return false;
243        }
244
245        /* Extract the string representation of the message. */
246        $message = $this->_extractMessage($message);
247        $message = preg_replace('/\r\n|\n|\r/', '<br />', $message);
248
249        list($usec, $sec) = explode(' ', microtime());
250
251        /* Build the output line that contains the log entry row. */
252        $line  = '<tr>';
253        $line .= sprintf('<td>%s.%s</td>',
254                         strftime('%H:%M:%S', $sec), substr($usec, 2, 2));
255        if (!empty($this->_ident)) {
256            $line .= '<td>' . $this->_ident . '</td>';
257        }
258        $line .= '<td>' . ucfirst($this->priorityToString($priority)) . '</td>';
259        $line .= sprintf('<td class="l%d">%s</td>', $priority, $message);
260        $line .= '</tr>';
261
262        $this->_writeln($line);
263
264        $this->_announce(array('priority' => $priority, 'message' => $message));
265
266        return true;
267    }
268
269}
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