Add files

Tools/speech_recognizer/GSSpeechRecognitionEngine.h

@@ -7,6 +7,10 @@
  * in future if pluggable speech engines are considered beneficial.
  */
 @interface GSSpeechRecognitionEngine : NSObject
+
+- (void) startListening;
+- (void) stopListening;
+
 @end
 
 @interface NSObject (GSSpeechRecognitionEngineDelegate)

Tools/speech_recognizer/GSSpeechRecognitionServer.m

@@ -44,4 +44,13 @@ static GSSpeechRecognitionServer *sharedInstance;
 {
   return [[GSSpeechRecognizer new] autorelease];
 }
+
+- (void) startListening
+{
+}
+
+- (void) stopListening
+{
+}
+
 @end

Tools/speech_recognizer/GSSpeechRecognizer.h

@@ -0,0 +1,12 @@
+#import "GSSpeechRecognitionServer.h"
+#import <AppKit/NSSpeechRecognizer.h>
+
+
+@interface GSSpeechRecognizer : NSSpeechRecognizer {
+	NSString *currentVoice;
+	id delegate;
+}
+- (id)init;
+- (id)delegate;
+- (void)setDelegate: (id)aDelegate;
+@end

Tools/speech_recognizer/GSSpeechRecognizer.m

@@ -0,0 +1,79 @@
+#import "GSSpeechRecognizer.h"
+
+static GSSpeechRecognitionServer *server;
+static int clients;
+
+@interface GSSpeechRecognizer (Private)
++ (void)connectionDied: (NSNotification*)aNotification;
+@end
+
+@implementation GSSpeechRecognizer
++ (void)initialize
+{
+  server = [[GSSpeechRecognitionServer sharedServer] retain];
+  [[NSNotificationCenter defaultCenter]
+		addObserver: self
+		   selector: @selector(connectionDied:)
+                       name: NSConnectionDidDieNotification
+                     object: nil];
+}
+
+/**
+ * If the remote end exits before freeing the GSSpeechRecognizer then we need
+ * to send it a -release message to make sure it dies.
+ */
++ (void)connectionDied: (NSNotification*)aNotification
+{
+  NSEnumerator *e = [[[aNotification object] localObjects] objectEnumerator];
+  NSObject *o = nil;
+  for (o = [e nextObject] ; nil != o ; o = [e nextObject])
+    {
+      if ([o isKindOfClass: self])
+        {
+          [o release];
+        }
+    }
+}
+
+/**
+ * If no clients have been active for some time, kill the speech server to
+ * conserve resources.
+ */
++ (void)exitIfUnneeded: (NSTimer*)sender
+{
+  if (clients == 0)
+    {
+      exit(0);
+    }
+}
+
+- (id)init
+{
+  self = [super init];
+  return self;
+}
+
+- (void)dealloc
+{
+  clients--;
+  if (clients == 0)
+    {
+      [NSTimer scheduledTimerWithTimeInterval: 600
+                                       target: object_getClass(self)
+                                     selector: @selector(exitIfUnneeded:)
+                                     userInfo: nil
+                                      repeats: NO];
+    }
+  [super dealloc];
+}
+
+- (void) setDelegate: (id)delegate
+{
+}
+
+- (id) delegate
+{
+  return nil;
+}
+
+@end

Tools/speech_recognizer/PocketsphinxSpeechRecognitionEngine.m

@@ -1,5 +1,5 @@
 #import "GSSpeechRecognitionEngine.h"
-// #include <pocketsphinx/pocketsphinx.h>
+#include <pocketsphinx/pocketsphinx.h>
 
 /**
  * Implementation of a speech engine using pocketsphinx.  This should be the default
@@ -20,6 +20,15 @@
   if (nil == (self = [super init])) { return nil; }
   return self;
 }
+
+- (void) startListening
+{
+}
+
+- (void) stopListening
+{
+}
+
 @end
 
 @implementation GSSpeechRecognitionEngine (Pocketsphinx)