1 files changed, 154 insertions, 0 deletions
diff --git a/src/lib/platform/OSXMediaKeySupport.mm b/src/lib/platform/OSXMediaKeySupport.mm
new file mode 100644
index 0000000..a4d5767
--- /dev/null
+++ b/src/lib/platform/OSXMediaKeySupport.mm
@@ -0,0 +1,154 @@
+/*
+ * barrier -- mouse and keyboard sharing utility
+ * Copyright (C) 2016 Symless.
+ *
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ *
+ * This package is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#import "platform/OSXMediaKeySupport.h"
+#import <Cocoa/Cocoa.h>
+#import <IOKit/hidsystem/ev_keymap.h>
+
+int convertKeyIDToNXKeyType(KeyID id)
+{
+	int type = -1;
+
+	switch (id) {
+	case kKeyAudioUp:
+		type = NX_KEYTYPE_SOUND_UP;
+		break;
+	case kKeyAudioDown:
+		type = NX_KEYTYPE_SOUND_DOWN;
+		break;
+	case kKeyBrightnessUp:
+		type = NX_KEYTYPE_BRIGHTNESS_UP;
+		break;
+	case kKeyBrightnessDown:
+		type = NX_KEYTYPE_BRIGHTNESS_DOWN;
+		break;
+	case kKeyAudioMute:
+		type = NX_KEYTYPE_MUTE;
+		break;
+	case kKeyEject:
+		type = NX_KEYTYPE_EJECT;
+		break;
+	case kKeyAudioPlay:
+		type = NX_KEYTYPE_PLAY;
+		break;
+	case kKeyAudioNext:
+		type = NX_KEYTYPE_NEXT;
+		break;
+	case kKeyAudioPrev:
+		type = NX_KEYTYPE_PREVIOUS;
+		break;
+	default:
+		break;
+	}
+	
+	return type;
+}
+
+static KeyID
+convertNXKeyTypeToKeyID(uint32_t const type)
+{
+	KeyID id = 0;
+
+	switch (type) { 
+	case NX_KEYTYPE_SOUND_UP:
+		id = kKeyAudioUp;
+		break;
+	case NX_KEYTYPE_SOUND_DOWN:
+		id = kKeyAudioDown;
+		break;
+	case NX_KEYTYPE_MUTE:
+		id = kKeyAudioMute;
+		break;
+	case NX_KEYTYPE_EJECT:
+		id = kKeyEject;
+		break;
+	case NX_KEYTYPE_PLAY:
+		id = kKeyAudioPlay;
+		break;
+	case NX_KEYTYPE_FAST:
+	case NX_KEYTYPE_NEXT:
+		id = kKeyAudioNext;
+		break;
+	case NX_KEYTYPE_REWIND:
+	case NX_KEYTYPE_PREVIOUS:
+		id = kKeyAudioPrev;
+		break;
+	default:
+		break;
+	}
+
+	return id;
+}
+
+bool
+isMediaKeyEvent(CGEventRef event) {
+	NSEvent* nsEvent = nil;
+	@try {
+		nsEvent = [NSEvent eventWithCGEvent: event];
+		if ([nsEvent subtype] != 8) {
+			return false;
+		}
+		uint32_t const nxKeyId = ([nsEvent data1] & 0xFFFF0000) >> 16;
+		if (convertNXKeyTypeToKeyID (nxKeyId)) {
+			return true;
+		}
+	} @catch (NSException* e) {
+	}
+	return false;
+}
+
+bool
+getMediaKeyEventInfo(CGEventRef event, KeyID* const keyId, 
+					 bool* const down, bool* const isRepeat) {
+	NSEvent* nsEvent = nil;
+	@try {
+		nsEvent = [NSEvent eventWithCGEvent: event];
+	} @catch (NSException* e) {
+		return false;
+	}
+	if (keyId) {
+		*keyId = convertNXKeyTypeToKeyID (([nsEvent data1] & 0xFFFF0000) >> 16);
+	}
+	if (down) {
+		*down = !([nsEvent data1] & 0x100);
+	}
+	if (isRepeat) {
+		*isRepeat = [nsEvent data1] & 0x1;
+	}
+	return true;
+}
+
+bool
+fakeNativeMediaKey(KeyID id)
+{
+	
+	NSEvent* downRef = [NSEvent otherEventWithType:NSSystemDefined
+					location: NSMakePoint(0, 0) modifierFlags:0xa00
+					timestamp:0 windowNumber:0 context:0 subtype:8
+					data1:(convertKeyIDToNXKeyType(id) << 16) | ((0xa) << 8)
+					data2:-1];
+	CGEventRef downEvent = [downRef CGEvent];
+	
+	NSEvent* upRef = [NSEvent otherEventWithType:NSSystemDefined
+					location: NSMakePoint(0, 0) modifierFlags:0xa00
+					timestamp:0 windowNumber:0 context:0 subtype:8
+					data1:(convertKeyIDToNXKeyType(id) << 16) | ((0xb) << 8)
+					data2:-1];
+	CGEventRef upEvent = [upRef CGEvent];
+	
+    CGEventPost(kCGHIDEventTap, downEvent);
+    CGEventPost(kCGHIDEventTap, upEvent);
+	
+	return true;
+}