Added Focus follows mouse option

Afloat.h

@@ -30,6 +30,8 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 - (IBAction) makeMoreTransparent:(id) sender;
 - (IBAction) makeLessTransparent:(id) sender;
 
+- (IBAction) toggleFocusFollowsMouse:(id)sender;
+
 - (IBAction) showAdjustEffectsPanel:(id) sender;
 
 - (CGFloat) currentAlphaValueForWindow:(NSWindow*) w;

Afloat.m

@@ -141,6 +141,11 @@ - (void) install {
 
 	// Scripting support.
 	[self installScriptingSupport];
+
+    // Set up tracking rectangles
+    for(NSWindow *window in [NSApp windows]) {
+        [self beginTrackingWindow:window];
+    }
 }
 
 - (NSUInteger) indexForInstallingInMenu:(NSMenu*) m {
@@ -180,6 +185,8 @@ - (BOOL) validateMenuItem:(NSMenuItem*) item {
 		return c != nil;
 	} else if ([item action] == @selector(showWindowFileInFinder:))
 		return [[self currentWindow] representedURL]? [[[self currentWindow] representedURL] isFileURL] : NO;
+    else if ([item action] == @selector(toggleFocusFollowsMouse:))
+        [item setState:[[AfloatStorage globalValueForKey:@"FocusFollowsMouse"] boolValue] ? NSOnState : NSOffState];
 
 	return YES;
 }
@@ -309,11 +316,6 @@ - (void) setAlphaValue:(CGFloat) f forWindow:(NSWindow*) window animated:(BOOL)
 
 	[AfloatStorage setSharedValue:[NSNumber numberWithFloat:f] window:window key:kAfloatLastAlphaValueKey];
 
-	if (f == 1.0)
-		[self endTrackingWindow:window];
-	else
-		[self beginTrackingWindow:window];
-
 	if (animate) {
 		[NSAnimationContext beginGrouping];
 		[[NSAnimationContext currentContext] setDuration:0.3];
@@ -366,10 +368,18 @@ - (void) mouseEntered:(NSEvent*) e {
 	L0Log(@"%@", e);
 
 	[self animateFadeInForWindow:[e window]];
+
+    BOOL focusFollowsMouse = [[AfloatStorage globalValueForKey:@"FocusFollowsMouse"] boolValue];
+    BOOL commandDown       = [NSEvent modifierFlags] & NSCommandKeyMask ? YES : NO;
+    if(((focusFollowsMouse && !commandDown) || (!focusFollowsMouse && commandDown)) && ![[e window] isKeyWindow]) {
+        [[e window] makeKeyAndOrderFront:nil];
+        [NSApp activateIgnoringOtherApps:YES];
+    }
 }
 
 - (void) windowDidBecomeMain:(NSNotification*) n {
 	[self animateFadeInForWindow:[n object]];
+    [self beginTrackingWindow:[n object]];
 }
 
 - (void) animateFadeInForWindow:(NSWindow*) w {
@@ -390,6 +400,7 @@ - (void) mouseExited:(NSEvent*) e {
 
 - (void) windowDidResignMain:(NSNotification*) n {
 	[self animateFadeOutForWindow:[n object]];
+    [self beginTrackingWindow:[n object]];
 }
 
 - (void) animateFadeOutForWindow:(NSWindow*) w {
@@ -406,6 +417,13 @@ - (void) animateFadeOutForWindow:(NSWindow*) w {
 
 }
 
+- (IBAction) toggleFocusFollowsMouse:(id)sender {
+    BOOL enable = ![[AfloatStorage globalValueForKey:@"FocusFollowsMouse"] boolValue];
+
+    [AfloatStorage setGlobalValue:@(enable)
+                           forKey:@"FocusFollowsMouse"];
+}
+
 - (IBAction) showAdjustEffectsPanel:(id) sender {
 	NSWindow* w = [self currentWindow];
 	if (!w) { NSBeep(); return; }

AfloatStorage.h

@@ -23,6 +23,9 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 + (id) sharedValueForWindow:(NSWindow*) w key:(NSString*) k;
 + (void) setSharedValue:(id) v window:(NSWindow*) w key:(NSString*) k;
 
++ (id) globalValueForKey:(NSString *) k;
++ (void) setGlobalValue:(id) v forKey:(NSString *) k;
+
 - (id) valueForWindow:(NSWindow*) w key:(NSString*) k;
 - (void) setValue:(id) v forWindow:(NSWindow*) w key:(NSString*) k;
 

AfloatStorage.m

@@ -101,9 +101,6 @@ - (BOOL) canSaveWindow:(NSWindow*) w category:(NSString**) cat key:(NSString**)
 		if (key) *key = [w frameAutosaveName];
 		return YES;
 	}
-
-
-
 	return NO;	
 }
 
@@ -155,6 +152,36 @@ + (void) setSharedValue:(id) v window:(NSWindow*) w key:(NSString*) k {
 	[[self sharedStorage] setValue:v forWindow:w key:k];
 }
 
++ (void)_withGlobalStorage:(BOOL (^)(NSMutableDictionary *storage)) block
+{
+    NSString *bundleIdentifier = [[NSBundle bundleForClass:self] bundleIdentifier];
+    NSString *storagePath      = [[NSString stringWithFormat:@"~/Library/Preferences/%@.plist", bundleIdentifier] stringByExpandingTildeInPath];
+    NSDistributedLock *lock = [NSDistributedLock lockWithPath:[storagePath stringByAppendingPathExtension:@"lock"]];
+
+    NSMutableDictionary *storage = [NSMutableDictionary dictionaryWithContentsOfFile:storagePath]
+                                   ?: [NSMutableDictionary new];
+    if(block(storage))
+        [storage writeToFile:storagePath atomically:YES];
+
+    [lock unlock];
+}
+
++ (id) globalValueForKey:(NSString *) k {
+    __block id value;
+    [self _withGlobalStorage:^(NSMutableDictionary *storage) {
+        value = [storage objectForKey:k];
+        return NO;
+    }];
+    return value;
+}
+
++ (void) setGlobalValue:(id) v forKey:(NSString *) k {
+    [self _withGlobalStorage:^(NSMutableDictionary *storage) {
+        [storage setObject:v forKey:k];
+        return YES;
+    }];
+}
+
 @synthesize delegate = _delegate;
 
 @end