PrettyPageHandler::handle() - Code Metrics - Inspection of "Merge pull request #407 from jonasdt/fix-dependenc..." - filp/whoops - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( afab26...d13505 )

by Denis

created 2016-04-07 06:16 UTC

PrettyPageHandler::handle() D

↳ Parent: PrettyPageHandler

Complexity

Conditions	13
Paths	130

Size

Total Lines	118
Code Lines	69

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	149.9914

Importance

Changes	4
Bugs	1	Features	0

Metric	Value
c	4
b	1
f	0
dl	0
loc	118
ccs	5
cts	74
cp	0.0675
rs	4.6605
cc	13
eloc	69
nc	130
nop	0
crap	149.9914

How to fix Long Method Complexity

<?php
/**
 * Whoops - php errors for cool kids
 * @author Filipe Dobreira <http://github.com/filp>
 */

namespace Whoops\Handler;

use InvalidArgumentException;
use RuntimeException;
use Symfony\Component\VarDumper\Cloner\AbstractCloner;
use Symfony\Component\VarDumper\Cloner\VarCloner;
use UnexpectedValueException;
use Whoops\Exception\Formatter;
use Whoops\Util\Misc;
use Whoops\Util\TemplateHelper;

class PrettyPageHandler extends Handler
{
    /**
     * Search paths to be scanned for resources, in the reverse
     * order they're declared.
     *
     * @var array
     */
    private $searchPaths = array();

    /**
     * Fast lookup cache for known resource locations.
     *
     * @var array
     */
    private $resourceCache = array();

    /**
     * The name of the custom css file.
     *
     * @var string
     */
    private $customCss = null;

    /**
     * @var array[]
     */
    private $extraTables = array();

    /**
     * @var bool
     */
    private $handleUnconditionally = false;

    /**
     * @var string
     */
    private $pageTitle = "Whoops! There was an error.";

    /**
     * A string identifier for a known IDE/text editor, or a closure
     * that resolves a string that can be used to open a given file
     * in an editor. If the string contains the special substrings
     * %file or %line, they will be replaced with the correct data.
     *
     * @example
     *  "txmt://open?url=%file&line=%line"
     * @var mixed $editor
     */
    protected $editor;

    /**
     * A list of known editor strings
     * @var array
     */
    protected $editors = array(
        "sublime"  => "subl://open?url=file://%file&line=%line",
        "textmate" => "txmt://open?url=file://%file&line=%line",
        "emacs"    => "emacs://open?url=file://%file&line=%line",
        "macvim"   => "mvim://open/?url=file://%file&line=%line",
        "phpstorm" => "phpstorm://open?file=%file&line=%line",
    );

    /**
     * Constructor.
     */
    public function __construct()
    {
        if (ini_get('xdebug.file_link_format') || extension_loaded('xdebug')) {
            // Register editor using xdebug's file_link_format option.
            $this->editors['xdebug'] = function ($file, $line) {
                return str_replace(array('%f', '%l'), array($file, $line), ini_get('xdebug.file_link_format'));
            };
        }

        // Add the default, local resource search path:
        $this->searchPaths[] = __DIR__ . "/../Resources";
    }

    /**
     * @return int|null
     */
    public function handle()
    {
        if (!$this->handleUnconditionally()) {
$a = canBeFalseAndNull();

// Instead of
if ( ! $a) { }

// Better use one of the explicit versions:
if ($a !== null) { }
if ($a !== false) { }
if ($a !== null && $a !== false) { }
            // Check conditions for outputting HTML:
            // @todo: Make this more robust
            if (php_sapi_name() === 'cli') {
                // Help users who have been relying on an internal test value
                // fix their code to the proper method
                if (isset($_ENV['whoops-test'])) {
                    throw new \Exception(
                        'Use handleUnconditionally instead of whoops-test'
                        .' environment variable'
                    );
                }

                return Handler::DONE;
            }
        }

        // @todo: Make this more dynamic
        $helper = new TemplateHelper();

        if (class_exists('Symfony\Component\VarDumper\Cloner\VarCloner')) {
            $cloner = new VarCloner();
            // Only dump object internals if a custom caster exists.
            $cloner->addCasters(['*' => function ($obj, $a, $stub, $isNested, $filter = 0) {

                $class = $stub->class;
                $classes = [$class => $class] + class_parents($class) + class_implements($class);

                foreach ($classes as $class) {
                    if (isset(AbstractCloner::$defaultCasters[$class])) {
                        return $a;
                    }
                }

                // Remove all internals
                return [];
            }]);
            $helper->setCloner($cloner);
        }

        $templateFile = $this->getResource("views/layout.html.php");
        $cssFile      = $this->getResource("css/whoops.base.css");
        $zeptoFile    = $this->getResource("js/zepto.min.js");
        $clipboard    = $this->getResource("js/clipboard.min.js");
        $jsFile       = $this->getResource("js/whoops.base.js");

        if ($this->customCss) {
            $customCssFile = $this->getResource($this->customCss);
        }

        $inspector = $this->getInspector();
        $frames    = $inspector->getFrames();

        $code = $inspector->getException()->getCode();

        if ($inspector->getException() instanceof \ErrorException) {
            // ErrorExceptions wrap the php-error types within the "severity" property
            $code = Misc::translateErrorCode($inspector->getException()->getSeverity());
        }

        // List of variables that will be passed to the layout template.
        $vars = array(
            "page_title" => $this->getPageTitle(),

            // @todo: Asset compiler
            "stylesheet" => file_get_contents($cssFile),
            "zepto"      => file_get_contents($zeptoFile),
            "clipboard"  => file_get_contents($clipboard),
            "javascript" => file_get_contents($jsFile),

            // Template paths:
            "header"      => $this->getResource("views/header.html.php"),
            "frame_list"  => $this->getResource("views/frame_list.html.php"),
            "frame_code"  => $this->getResource("views/frame_code.html.php"),
            "env_details" => $this->getResource("views/env_details.html.php"),

            "title"          => $this->getPageTitle(),
            "name"           => explode("\\", $inspector->getExceptionName()),
            "message"        => $inspector->getException()->getMessage(),
            "code"           => $code,
            "plain_exception" => Formatter::formatExceptionPlain($inspector),
            "frames"         => $frames,
            "has_frames"     => !!count($frames),
            "handler"        => $this,
            "handlers"       => $this->getRun()->getHandlers(),

            "tables"      => array(
                "GET Data"              => $_GET,
                "POST Data"             => $_POST,
                "Files"                 => $_FILES,
                "Cookies"               => $_COOKIE,
                "Session"               => isset($_SESSION) ? $_SESSION :  array(),
                "Server/Request Data"   => $_SERVER,
                "Environment Variables" => $_ENV,
            ),
        );

        if (isset($customCssFile)) {
            $vars["stylesheet"] .= file_get_contents($customCssFile);
        }

        // Add extra entries list of data tables:
        // @todo: Consolidate addDataTable and addDataTableCallback
        $extraTables = array_map(function ($table) {
            return $table instanceof \Closure ? $table() : $table;
        }, $this->getDataTables());
        $vars["tables"] = array_merge($extraTables, $vars["tables"]);

        if (\Whoops\Util\Misc::canSendHeaders()) {
            header('Content-Type: text/html');
        }

        $helper->setVariables($vars);
        $helper->render($templateFile);

        return Handler::QUIT;
    }

    /**
     * Adds an entry to the list of tables displayed in the template.
     * The expected data is a simple associative array. Any nested arrays
     * will be flattened with print_r
     * @param string $label
     * @param array  $data
     */
    public function addDataTable($label, array $data)
    {
        $this->extraTables[$label] = $data;
    }

    /**
     * Lazily adds an entry to the list of tables displayed in the table.
     * The supplied callback argument will be called when the error is rendered,
     * it should produce a simple associative array. Any nested arrays will
     * be flattened with print_r.
     *
     * @throws InvalidArgumentException If $callback is not callable
     * @param  string                   $label
     * @param  callable                 $callback Callable returning an associative array
     */
    public function addDataTableCallback($label, /* callable */ $callback)
    {
        if (!is_callable($callback)) {
            throw new InvalidArgumentException('Expecting callback argument to be callable');
        }

        $this->extraTables[$label] = function () use ($callback) {
            try {
                $result = call_user_func($callback);

                // Only return the result if it can be iterated over by foreach().
                return is_array($result) || $result instanceof \Traversable ? $result : array();
            } catch (\Exception $e) {
                // Don't allow failure to break the rendering of the original exception.
                return array();
            }
        };
    }

    /**
     * Returns all the extra data tables registered with this handler.
     * Optionally accepts a 'label' parameter, to only return the data
     * table under that label.
     * @param  string|null      $label
     * @return array[]|callable
     */
    public function getDataTables($label = null)
    {
        if ($label !== null) {
            return isset($this->extraTables[$label]) ?
                   $this->extraTables[$label] : array();
        }

        return $this->extraTables;
    }

    /**
     * Allows to disable all attempts to dynamically decide whether to
     * handle or return prematurely.
     * Set this to ensure that the handler will perform no matter what.
     * @param  bool|null $value
     * @return bool|null
     */
    public function handleUnconditionally($value = null)
    {
        if (func_num_args() == 0) {
            return $this->handleUnconditionally;
        }

        $this->handleUnconditionally = (bool) $value;
    }

    /**
     * Adds an editor resolver, identified by a string
     * name, and that may be a string path, or a callable
     * resolver. If the callable returns a string, it will
     * be set as the file reference's href attribute.
     *
     * @example
     *  $run->addEditor('macvim', "mvim://open?url=file://%file&line=%line")
     * @example
     *   $run->addEditor('remove-it', function($file, $line) {
     *       unlink($file);
     *       return "http://stackoverflow.com";
     *   });
     * @param string $identifier
     * @param string $resolver
     */
    public function addEditor($identifier, $resolver)
    {
        $this->editors[$identifier] = $resolver;
    }

    /**
     * Set the editor to use to open referenced files, by a string
     * identifier, or a callable that will be executed for every
     * file reference, with a $file and $line argument, and should
     * return a string.
     *
     * @example
     *   $run->setEditor(function($file, $line) { return "file:///{$file}"; });
     * @example
     *   $run->setEditor('sublime');
     *
     * @throws InvalidArgumentException If invalid argument identifier provided
     * @param  string|callable          $editor
     */
    public function setEditor($editor)
    {
        if (!is_callable($editor) && !isset($this->editors[$editor])) {
            throw new InvalidArgumentException(
                "Unknown editor identifier: $editor. Known editors:" .
                implode(",", array_keys($this->editors))
            );
        }

        $this->editor = $editor;
    }

    /**
     * Given a string file path, and an integer file line,
     * executes the editor resolver and returns, if available,
     * a string that may be used as the href property for that
     * file reference.
     *
     * @throws InvalidArgumentException If editor resolver does not return a string
     * @param  string                   $filePath
     * @param  int                      $line
     * @return string|bool
     */
    public function getEditorHref($filePath, $line)
    {
        $editor = $this->getEditor($filePath, $line);

        if (!$editor) {
            return false;
        }

        // Check that the editor is a string, and replace the
        // %line and %file placeholders:
        if (!isset($editor['url']) || !is_string($editor['url'])) {
            throw new UnexpectedValueException(
                __METHOD__ . " should always resolve to a string or a valid editor array; got something else instead."
            );
        }

        $editor['url'] = str_replace("%line", rawurlencode($line), $editor['url']);
        $editor['url'] = str_replace("%file", rawurlencode($filePath), $editor['url']);

        return $editor['url'];
    }

    /**
     * Given a boolean if the editor link should
     * act as an Ajax request. The editor must be a
     * valid callable function/closure
     *
     * @throws UnexpectedValueException  If editor resolver does not return a boolean
     * @param  string                   $filePath
     * @param  int                      $line
     * @return bool
     */
    public function getEditorAjax($filePath, $line)
    {
        $editor = $this->getEditor($filePath, $line);

        // Check that the ajax is a bool
        if (!isset($editor['ajax']) || !is_bool($editor['ajax'])) {
            throw new UnexpectedValueException(
                __METHOD__ . " should always resolve to a bool; got something else instead."
            );
        }
        return $editor['ajax'];
    }

    /**
     * Given a boolean if the editor link should
     * act as an Ajax request. The editor must be a
     * valid callable function/closure
     *
     * @throws UnexpectedValueException  If editor resolver does not return a boolean
     * @param  string                   $filePath
     * @param  int                      $line
     * @return mixed
     */
    protected function getEditor($filePath, $line)
    {
        if ($this->editor === null && !is_string($this->editor) && !is_callable($this->editor))
        {
            return false;
        }
        else if(is_string($this->editor) && isset($this->editors[$this->editor]) && !is_callable($this->editors[$this->editor]))
        {
           return array(
                'ajax' => false,
                'url' => $this->editors[$this->editor],
            );
        }
        else if(is_callable($this->editor) || (isset($this->editors[$this->editor]) && is_callable($this->editors[$this->editor])))
        {
            if(is_callable($this->editor))
            {
                $callback = call_user_func($this->editor, $filePath, $line);
            }
            else
            {
                $callback = call_user_func($this->editors[$this->editor], $filePath, $line);
            }

            return array(
                'ajax' => isset($callback['ajax']) ? $callback['ajax'] : false,
                'url' => (is_array($callback) ? $callback['url'] : $callback),
            );
        }

        return false;
    }

    /**
     * @param  string $title
     * @return void
     */
    public function setPageTitle($title)
    {
        $this->pageTitle = (string) $title;
    }

    /**
     * @return string
     */
    public function getPageTitle()
    {
        return $this->pageTitle;
    }

    /**
     * Adds a path to the list of paths to be searched for
     * resources.
     *
     * @throws InvalidArgumnetException If $path is not a valid directory
     *
     * @param  string $path
     * @return void
     */
    public function addResourcePath($path)
    {
        if (!is_dir($path)) {
            throw new InvalidArgumentException(
                "'$path' is not a valid directory"
            );
        }

        array_unshift($this->searchPaths, $path);
    }

    /**
     * Adds a custom css file to be loaded.
     *
     * @param  string $name
     * @return void
     */
    public function addCustomCss($name)
    {
        $this->customCss = $name;
    }

    /**
     * @return array
     */
    public function getResourcePaths()
    {
        return $this->searchPaths;
    }

    /**
     * Finds a resource, by its relative path, in all available search paths.
     * The search is performed starting at the last search path, and all the
     * way back to the first, enabling a cascading-type system of overrides
     * for all resources.
     *
     * @throws RuntimeException If resource cannot be found in any of the available paths
     *
     * @param  string $resource
     * @return string
     */
    protected function getResource($resource)
    {
        // If the resource was found before, we can speed things up
        // by caching its absolute, resolved path:
        if (isset($this->resourceCache[$resource])) {
            return $this->resourceCache[$resource];
        }

        // Search through available search paths, until we find the
        // resource we're after:
        foreach ($this->searchPaths as $path) {
            $fullPath = $path . "/$resource";

            if (is_file($fullPath)) {
                // Cache the result:
                $this->resourceCache[$resource] = $fullPath;
                return $fullPath;
            }
        }

        // If we got this far, nothing was found.
        throw new RuntimeException(
            "Could not find resource '$resource' in any resource paths."
            . "(searched: " . join(", ", $this->searchPaths). ")"
        );
    }

    /**
     * @deprecated
     *
     * @return string
     */
    public function getResourcesPath()
    {
        $allPaths = $this->getResourcePaths();

        // Compat: return only the first path added
        return end($allPaths) ?: null;
    }

    /**
     * @deprecated
     *
     * @param  string $resourcesPath
     * @return void
     */
    public function setResourcesPath($resourcesPath)
    {
        $this->addResourcePath($resourcesPath);
    }
}


1		<?php
2		/**
3		* Whoops - php errors for cool kids
4		* @author Filipe Dobreira <http://github.com/filp>
5		*/
6
7		namespace Whoops\Handler;
8
9		use InvalidArgumentException;
10		use RuntimeException;
11		use Symfony\Component\VarDumper\Cloner\AbstractCloner;
12		use Symfony\Component\VarDumper\Cloner\VarCloner;
13		use UnexpectedValueException;
14		use Whoops\Exception\Formatter;
15		use Whoops\Util\Misc;
16		use Whoops\Util\TemplateHelper;
17
18		class PrettyPageHandler extends Handler
19		{
20		/**
21		* Search paths to be scanned for resources, in the reverse
22		* order they're declared.
23		*
24		* @var array
25		*/
26		private $searchPaths = array();
27
28		/**
29		* Fast lookup cache for known resource locations.
30		*
31		* @var array
32		*/
33		private $resourceCache = array();
34
35		/**
36		* The name of the custom css file.
37		*
38		* @var string
39		*/
40		private $customCss = null;
41
42		/**
43		* @var array[]
44		*/
45		private $extraTables = array();
46
47		/**
48		* @var bool
49		*/
50		private $handleUnconditionally = false;
51
52		/**
53		* @var string
54		*/
55		private $pageTitle = "Whoops! There was an error.";
56
57		/**
58		* A string identifier for a known IDE/text editor, or a closure
59		* that resolves a string that can be used to open a given file
60		* in an editor. If the string contains the special substrings
61		* %file or %line, they will be replaced with the correct data.
62		*
63		* @example
64		* "txmt://open?url=%file&line=%line"
65		* @var mixed $editor
66		*/
67		protected $editor;
68
69		/**
70		* A list of known editor strings
71		* @var array
72		*/
73		protected $editors = array(
74		"sublime" => "subl://open?url=file://%file&line=%line",
75		"textmate" => "txmt://open?url=file://%file&line=%line",
76		"emacs" => "emacs://open?url=file://%file&line=%line",
77		"macvim" => "mvim://open/?url=file://%file&line=%line",
78		"phpstorm" => "phpstorm://open?file=%file&line=%line",
79		);
80
81		/**
82		* Constructor.
83		*/
84	1	public function __construct()
85		{
86	1	if (ini_get('xdebug.file_link_format') \|\| extension_loaded('xdebug')) {
87		// Register editor using xdebug's file_link_format option.
88		$this->editors['xdebug'] = function ($file, $line) {
89	1	return str_replace(array('%f', '%l'), array($file, $line), ini_get('xdebug.file_link_format'));
90		};
91	1	}
92
93		// Add the default, local resource search path:
94	1	$this->searchPaths[] = __DIR__ . "/../Resources";
95	1	}
96
97		/**
98		* @return int\|null
99		*/
100	1	public function handle()
101		{
102	1	if (!$this->handleUnconditionally()) {
		0 ignored issues – show Bug Best Practice introduced 2015-11-21 13:08 UTC by Report Bug Copy Issue Report The expression `$this->handleUnconditionally()` of type `boolean\|null` is loosely compared to `false`; this is ambiguous if the boolean can be false. You might want to explicitly use `!== null` instead. If an expression can have both `false`, and `null` as possible values. It is generally a good practice to always use strict comparison to clearly distinguish between those two values. $a = canBeFalseAndNull(); // Instead of if ( ! $a) { } // Better use one of the explicit versions: if ($a !== null) { } if ($a !== false) { } if ($a !== null && $a !== false) { } Loading history...
103		// Check conditions for outputting HTML:
104		// @todo: Make this more robust
105	1	if (php_sapi_name() === 'cli') {
106		// Help users who have been relying on an internal test value
107		// fix their code to the proper method
108	1	if (isset($_ENV['whoops-test'])) {
109		throw new \Exception(
110		'Use handleUnconditionally instead of whoops-test'
111		.' environment variable'
112		);
113		}
114
115	1	return Handler::DONE;
116		}
117		}
118
119		// @todo: Make this more dynamic
120		$helper = new TemplateHelper();
121
122		if (class_exists('Symfony\Component\VarDumper\Cloner\VarCloner')) {
123		$cloner = new VarCloner();
124		// Only dump object internals if a custom caster exists.
125		$cloner->addCasters(['*' => function ($obj, $a, $stub, $isNested, $filter = 0) {
		0 ignored issues – show Unused Code introduced 2016-03-20 13:49 UTC by Report Bug Copy Issue Report The parameter `$isNested` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history... Unused Code introduced 2016-03-20 13:49 UTC by Report Bug Copy Issue Report The parameter `$filter` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
126		$class = $stub->class;
127		$classes = [$class => $class] + class_parents($class) + class_implements($class);
128
129		foreach ($classes as $class) {
130		if (isset(AbstractCloner::$defaultCasters[$class])) {
131		return $a;
132		}
133		}
134
135		// Remove all internals
136		return [];
137		}]);
138		$helper->setCloner($cloner);
139		}
140
141		$templateFile = $this->getResource("views/layout.html.php");
142		$cssFile = $this->getResource("css/whoops.base.css");
143		$zeptoFile = $this->getResource("js/zepto.min.js");
144		$clipboard = $this->getResource("js/clipboard.min.js");
145		$jsFile = $this->getResource("js/whoops.base.js");
146
147		if ($this->customCss) {
148		$customCssFile = $this->getResource($this->customCss);
149		}
150
151		$inspector = $this->getInspector();
152		$frames = $inspector->getFrames();
153
154		$code = $inspector->getException()->getCode();
155
156		if ($inspector->getException() instanceof \ErrorException) {
157		// ErrorExceptions wrap the php-error types within the "severity" property
158		$code = Misc::translateErrorCode($inspector->getException()->getSeverity());
159		}
160
161		// List of variables that will be passed to the layout template.
162		$vars = array(
163		"page_title" => $this->getPageTitle(),
164
165		// @todo: Asset compiler
166		"stylesheet" => file_get_contents($cssFile),
167		"zepto" => file_get_contents($zeptoFile),
168		"clipboard" => file_get_contents($clipboard),
169		"javascript" => file_get_contents($jsFile),
170
171		// Template paths:
172		"header" => $this->getResource("views/header.html.php"),
173		"frame_list" => $this->getResource("views/frame_list.html.php"),
174		"frame_code" => $this->getResource("views/frame_code.html.php"),
175		"env_details" => $this->getResource("views/env_details.html.php"),
176
177		"title" => $this->getPageTitle(),
178		"name" => explode("\\", $inspector->getExceptionName()),
179		"message" => $inspector->getException()->getMessage(),
180		"code" => $code,
181		"plain_exception" => Formatter::formatExceptionPlain($inspector),
182		"frames" => $frames,
183		"has_frames" => !!count($frames),
184		"handler" => $this,
185		"handlers" => $this->getRun()->getHandlers(),
186
187		"tables" => array(
188		"GET Data" => $_GET,
189		"POST Data" => $_POST,
190		"Files" => $_FILES,
191		"Cookies" => $_COOKIE,
192		"Session" => isset($_SESSION) ? $_SESSION : array(),
193		"Server/Request Data" => $_SERVER,
194		"Environment Variables" => $_ENV,
195		),
196		);
197
198		if (isset($customCssFile)) {
199		$vars["stylesheet"] .= file_get_contents($customCssFile);
200		}
201
202		// Add extra entries list of data tables:
203		// @todo: Consolidate addDataTable and addDataTableCallback
204		$extraTables = array_map(function ($table) {
205		return $table instanceof \Closure ? $table() : $table;
206		}, $this->getDataTables());
207		$vars["tables"] = array_merge($extraTables, $vars["tables"]);
208
209		if (\Whoops\Util\Misc::canSendHeaders()) {
210		header('Content-Type: text/html');
211		}
212
213		$helper->setVariables($vars);
214		$helper->render($templateFile);
215
216		return Handler::QUIT;
217		}
218
219		/**
220		* Adds an entry to the list of tables displayed in the template.
221		* The expected data is a simple associative array. Any nested arrays
222		* will be flattened with print_r
223		* @param string $label
224		* @param array $data
225		*/
226	1	public function addDataTable($label, array $data)
227		{
228	1	$this->extraTables[$label] = $data;
229	1	}
230
231		/**
232		* Lazily adds an entry to the list of tables displayed in the table.
233		* The supplied callback argument will be called when the error is rendered,
234		* it should produce a simple associative array. Any nested arrays will
235		* be flattened with print_r.
236		*
237		* @throws InvalidArgumentException If $callback is not callable
238		* @param string $label
239		* @param callable $callback Callable returning an associative array
240		*/
241	1	public function addDataTableCallback($label, /* callable */ $callback)
242		{
243	1	if (!is_callable($callback)) {
244		throw new InvalidArgumentException('Expecting callback argument to be callable');
245		}
246
247	1	$this->extraTables[$label] = function () use ($callback) {
248		try {
249	1	$result = call_user_func($callback);
250
251		// Only return the result if it can be iterated over by foreach().
252	1	return is_array($result) \|\| $result instanceof \Traversable ? $result : array();
253		} catch (\Exception $e) {
254		// Don't allow failure to break the rendering of the original exception.
255		return array();
256		}
257		};
258	1	}
259
260		/**
261		* Returns all the extra data tables registered with this handler.
262		* Optionally accepts a 'label' parameter, to only return the data
263		* table under that label.
264		* @param string\|null $label
265		* @return array[]\|callable
266		*/
267	2	public function getDataTables($label = null)
268		{
269	2	if ($label !== null) {
270	2	return isset($this->extraTables[$label]) ?
271	2	$this->extraTables[$label] : array();
272		}
273
274	2	return $this->extraTables;
275		}
276
277		/**
278		* Allows to disable all attempts to dynamically decide whether to
279		* handle or return prematurely.
280		* Set this to ensure that the handler will perform no matter what.
281		* @param bool\|null $value
282		* @return bool\|null
283		*/
284	1	public function handleUnconditionally($value = null)
285		{
286	1	if (func_num_args() == 0) {
287	1	return $this->handleUnconditionally;
288		}
289
290		$this->handleUnconditionally = (bool) $value;
291		}
292
293		/**
294		* Adds an editor resolver, identified by a string
295		* name, and that may be a string path, or a callable
296		* resolver. If the callable returns a string, it will
297		* be set as the file reference's href attribute.
298		*
299		* @example
300		* $run->addEditor('macvim', "mvim://open?url=file://%file&line=%line")
301		* @example
302		* $run->addEditor('remove-it', function($file, $line) {
303		* unlink($file);
304		* return "http://stackoverflow.com";
305		* });
306		* @param string $identifier
307		* @param string $resolver
308		*/
309	1	public function addEditor($identifier, $resolver)
310		{
311	1	$this->editors[$identifier] = $resolver;
312	1	}
313
314		/**
315		* Set the editor to use to open referenced files, by a string
316		* identifier, or a callable that will be executed for every
317		* file reference, with a $file and $line argument, and should
318		* return a string.
319		*
320		* @example
321		* $run->setEditor(function($file, $line) { return "file:///{$file}"; });
322		* @example
323		* $run->setEditor('sublime');
324		*
325		* @throws InvalidArgumentException If invalid argument identifier provided
326		* @param string\|callable $editor
327		*/
328	4	public function setEditor($editor)
329		{
330	4	if (!is_callable($editor) && !isset($this->editors[$editor])) {
331		throw new InvalidArgumentException(
332		"Unknown editor identifier: $editor. Known editors:" .
333		implode(",", array_keys($this->editors))
334		);
335		}
336
337	4	$this->editor = $editor;
338	4	}
339
340		/**
341		* Given a string file path, and an integer file line,
342		* executes the editor resolver and returns, if available,
343		* a string that may be used as the href property for that
344		* file reference.
345		*
346		* @throws InvalidArgumentException If editor resolver does not return a string
347		* @param string $filePath
348		* @param int $line
349		* @return string\|bool
350		*/
351	4	public function getEditorHref($filePath, $line)
352		{
353	4	$editor = $this->getEditor($filePath, $line);
354
355	4	if (!$editor) {
356		return false;
357		}
358
359		// Check that the editor is a string, and replace the
360		// %line and %file placeholders:
361	4	if (!isset($editor['url']) \|\| !is_string($editor['url'])) {
362		throw new UnexpectedValueException(
363		__METHOD__ . " should always resolve to a string or a valid editor array; got something else instead."
364		);
365		}
366
367	4	$editor['url'] = str_replace("%line", rawurlencode($line), $editor['url']);
368	4	$editor['url'] = str_replace("%file", rawurlencode($filePath), $editor['url']);
369
370	4	return $editor['url'];
371		}
372
373		/**
374		* Given a boolean if the editor link should
375		* act as an Ajax request. The editor must be a
376		* valid callable function/closure
377		*
378		* @throws UnexpectedValueException If editor resolver does not return a boolean
379		* @param string $filePath
380		* @param int $line
381		* @return bool
382		*/
383	1	public function getEditorAjax($filePath, $line)
384		{
385	1	$editor = $this->getEditor($filePath, $line);
386
387		// Check that the ajax is a bool
388	1	if (!isset($editor['ajax']) \|\| !is_bool($editor['ajax'])) {
389		throw new UnexpectedValueException(
390		__METHOD__ . " should always resolve to a bool; got something else instead."
391		);
392		}
393	1	return $editor['ajax'];
394		}
395
396		/**
397		* Given a boolean if the editor link should
398		* act as an Ajax request. The editor must be a
399		* valid callable function/closure
400		*
401		* @throws UnexpectedValueException If editor resolver does not return a boolean
402		* @param string $filePath
403		* @param int $line
404		* @return mixed
405		*/
406	1	protected function getEditor($filePath, $line)
407		{
408	1	if ($this->editor === null && !is_string($this->editor) && !is_callable($this->editor))
409	1	{
410		return false;
411		}
412	1	else if(is_string($this->editor) && isset($this->editors[$this->editor]) && !is_callable($this->editors[$this->editor]))
413	1	{
414		return array(
415		'ajax' => false,
416		'url' => $this->editors[$this->editor],
417		);
418		}
419	1	else if(is_callable($this->editor) \|\| (isset($this->editors[$this->editor]) && is_callable($this->editors[$this->editor])))
420	1	{
421	1	if(is_callable($this->editor))
422	1	{
423		$callback = call_user_func($this->editor, $filePath, $line);
424		}
425		else
426		{
427	1	$callback = call_user_func($this->editors[$this->editor], $filePath, $line);
428		}
429
430		return array(
431	1	'ajax' => isset($callback['ajax']) ? $callback['ajax'] : false,
432	1	'url' => (is_array($callback) ? $callback['url'] : $callback),
433	1	);
434		}
435
436		return false;
437		}
438
439		/**
440		* @param string $title
441		* @return void
442		*/
443	1	public function setPageTitle($title)
444		{
445	1	$this->pageTitle = (string) $title;
446	1	}
447
448		/**
449		* @return string
450		*/
451	1	public function getPageTitle()
452		{
453	1	return $this->pageTitle;
454		}
455
456		/**
457		* Adds a path to the list of paths to be searched for
458		* resources.
459		*
460		* @throws InvalidArgumnetException If $path is not a valid directory
461		*
462		* @param string $path
463		* @return void
464		*/
465	2	public function addResourcePath($path)
466		{
467	2	if (!is_dir($path)) {
468	1	throw new InvalidArgumentException(
469	1	"'$path' is not a valid directory"
470	1	);
471		}
472
473	1	array_unshift($this->searchPaths, $path);
474	1	}
475
476		/**
477		* Adds a custom css file to be loaded.
478		*
479		* @param string $name
480		* @return void
481		*/
482		public function addCustomCss($name)
483		{
484		$this->customCss = $name;
485		}
486
487		/**
488		* @return array
489		*/
490	1	public function getResourcePaths()
491		{
492	1	return $this->searchPaths;
493		}
494
495		/**
496		* Finds a resource, by its relative path, in all available search paths.
497		* The search is performed starting at the last search path, and all the
498		* way back to the first, enabling a cascading-type system of overrides
499		* for all resources.
500		*
501		* @throws RuntimeException If resource cannot be found in any of the available paths
502		*
503		* @param string $resource
504		* @return string
505		*/
506		protected function getResource($resource)
507		{
508		// If the resource was found before, we can speed things up
509		// by caching its absolute, resolved path:
510		if (isset($this->resourceCache[$resource])) {
511		return $this->resourceCache[$resource];
512		}
513
514		// Search through available search paths, until we find the
515		// resource we're after:
516		foreach ($this->searchPaths as $path) {
517		$fullPath = $path . "/$resource";
518
519		if (is_file($fullPath)) {
520		// Cache the result:
521		$this->resourceCache[$resource] = $fullPath;
522		return $fullPath;
523		}
524		}
525
526		// If we got this far, nothing was found.
527		throw new RuntimeException(
528		"Could not find resource '$resource' in any resource paths."
529		. "(searched: " . join(", ", $this->searchPaths). ")"
530		);
531		}
532
533		/**
534		* @deprecated
535		*
536		* @return string
537		*/
538		public function getResourcesPath()
539		{
540		$allPaths = $this->getResourcePaths();
541
542		// Compat: return only the first path added
543		return end($allPaths) ?: null;
544		}
545
546		/**
547		* @deprecated
548		*
549		* @param string $resourcesPath
550		* @return void
551		*/
552		public function setResourcesPath($resourcesPath)
553		{
554		$this->addResourcePath($resourcesPath);
555		}
556		}
557

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