Make PrettyPageHandler more easily extendable (filp#517)

separate code and frames extraction

src/Whoops/Handler/PrettyPageHandler.php

@@ -176,27 +176,8 @@ public function handle()
  }
 
  $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());
- }
-
- // Detect frames that belong to the application.
- if ($this->applicationPaths) {
- /* @var \Whoops\Exception\Frame $frame */
- foreach ($frames as $frame) {
- foreach ($this->applicationPaths as $path) {
- if (substr($frame->getFile(), 0, strlen($path)) === $path) {
- $frame->setApplication(true);
- break;
- }
- }
- }
- }
+ $frames = $this->getExceptionFrames();
+ $code = $this->getExceptionCode();
 
  // List of variables that will be passed to the layout template.
  $vars = [
@@ -268,6 +249,47 @@ public function handle()
  return Handler::QUIT;
  }
 
+ /**
+ * Get the stack trace frames of the exception that is currently being handled.
+ *
+ * @return \Whoops\Exception\FrameCollection;
+ */
+ protected function getExceptionFrames()
+ {
+ $frames = $this->getInspector()->getFrames();
+
+ if ($this->getApplicationPaths()) {
+ foreach ($frames as $frame) {
+ foreach ($this->getApplicationPaths() as $path) {
+ if (strpos($frame->getFile(), $path) === 0) {
+ $frame->setApplication(true);
+ break;
+ }
+ }
+ }
+ }
+
+ return $frames;
+ }
+
+ /**
+ * Get the code of the exception that is currently being handled.
+ *
+ * @return string
+ */
+ protected function getExceptionCode()
+ {
+ $exception = $this->getException();
+
+ $code = $exception->getCode();
+ if ($exception instanceof \ErrorException) {
+ // ErrorExceptions wrap the php-error types within the 'severity' property
+ $code = Misc::translateErrorCode($exception->getSeverity());
+ }
+
+ return (string) $code;
+ }
+
  /**
  * @return string
  */