HeadphoneKey: Press keys from `_key_buffer` map

Take the headphone keys in `_key_buffer` and get the associated map
action by calling into the Rust library. If the map action has
`MapKind::Map`, then we need to simulate key presses of the characters
in the `action` field.

Works, but it's a little finicky. Maybe I'm including the null byte in
the loop?

3 files changed, 17 insertions, 0 deletions

diff --git a/DomeKey/HeadphoneKey.h b/DomeKey/HeadphoneKey.h
index 2a74fc1..22e7238 100644
--- a/DomeKey/HeadphoneKey.h
+++ b/DomeKey/HeadphoneKey.h
@@ -10,6 +10,7 @@
 #import <DDHidLib/DDHidAppleMikey.h>
 
 #import "dome_key_map.h"
+#import "KeyboardSimulator.h"
 
 typedef enum KeyPress : BOOL {
     KeyPressDown = YES,
diff --git a/DomeKey/HeadphoneKey.m b/DomeKey/HeadphoneKey.m
index 1d815b2..e955128 100644
--- a/DomeKey/HeadphoneKey.m
+++ b/DomeKey/HeadphoneKey.m
@@ -67,6 +67,21 @@
 {
     NSLog(@"%@", _key_buffer);
 
+    NSUInteger count = [_key_buffer count];
+    HeadphoneButton trigger[count];
+
+    for (int i = 0; i < count; i++) {
+        trigger[i] = (HeadphoneButton)[[_key_buffer objectAtIndex:i] intValue];
+    }
+
+    const CKeyActionResult *result = c_run_key_action(trigger, count);
+
+    if (*result->kind == MapKind_Map) {
+        for (int i = 0; i < strlen(result->action); i++) {
+            [KeyboardSimulator simpleKeyPressWithKey:result->action[i]];
+        }
+    }
+
     [_key_buffer removeAllObjects];
 }
 
diff --git a/DomeKey/KeyboardSimulator.m b/DomeKey/KeyboardSimulator.m
index 1465920..6e9d38e 100644
--- a/DomeKey/KeyboardSimulator.m
+++ b/DomeKey/KeyboardSimulator.m
@@ -18,6 +18,7 @@
 
     NSNumber *key_number = charToKeyCode(aChar);
     if (key_number == nil) {
+        NSLog(@"charToKeyCode returned nil");
         return;
     }
     CGKeyCode key_code = (CGKeyCode)[key_number intValue];