Add URL Apple Event handling code

This untested code should allow the application to respond to a Launch
Services URL to open the application.

From Thomas Zoechling
(https://stackoverflow.com/users/100848/thomas-zoechling) on Stack
Overflow:
https://stackoverflow.com/questions/1991072/how-to-handle-with-a-default-url-scheme/1991162#1991162

2 files changed, 15 insertions, 3 deletions

diff --git a/CopyMailto/AppDelegate.h b/CopyMailto/AppDelegate.h
index 83e822b..df7aec0 100644
--- a/CopyMailto/AppDelegate.h
+++ b/CopyMailto/AppDelegate.h
@@ -10,6 +10,7 @@
 
 @interface AppDelegate : NSObject <NSApplicationDelegate>
 
+- (void)handleURLEvent:(NSAppleEventDescriptor *)event
+    withReplyEvent: (NSAppleEventDescriptor *)replyEvent;
 
 @end
-
diff --git a/CopyMailto/AppDelegate.m b/CopyMailto/AppDelegate.m
index 3ea136a..281d151 100644
--- a/CopyMailto/AppDelegate.m
+++ b/CopyMailto/AppDelegate.m
@@ -15,8 +15,12 @@
 
 @implementation AppDelegate
 
-- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
-    // Insert code here to initialize your application
+- (void)applicationWillFinishLaunching:(NSNotification *)aNotification {
+    [[NSAppleEventManager sharedAppleEventManager]
+        setEventHandler:self
+        andSelector:@selector(handleURLEvent:withReplyEvent:)
+        forEventClass:kInternetLocationMail
+        andEventID:kAEOpenApplication];
 }
 
 
@@ -24,5 +28,12 @@
     // Insert code here to tear down your application
 }
 
+- (void)handleURLEvent:(NSAppleEventDescriptor *)event
+    withReplyEvent: (NSAppleEventDescriptor *)replyEvent
+{
+    NSString *url = [[event paramDescriptorForKeyword:keyDirectObject]
+        stringValue];
+    NSLog(@"%@", url);
+}
 
 @end