Re-added feature to change opacity of parent, but with additional che…

…cks that prevent style from being reapplied indefinitely, since changing the style seems to reload the view in older versions of Safari (thanks @lapcat)

Signed-off-by: Jonathan 'Wolf' Rentzsch <jwr.git@redshed.net>

Plugin/Plugin.m

@@ -271,14 +271,21 @@ - (id) initWithArguments:(NSDictionary *)arguments
 		// Should we apply this to the parent?
 		// That seems to be problematic.
 
+		// well, in my experience w/CSS, to get a layout to work a lot of the
+		// time, you need to create parent objects and apply styles to parents,
+		// so it seemed reasonable to check both self and parent for potential
+		// problems with opacity
+
 		NSMutableDictionary *originalOpacityDict = [NSMutableDictionary dictionary];
 		NSString *opacityResetString = @"; opacity: 1.000 !important; -moz-opacity: 1 !important; filter: alpha(opacity=1) !important;";
 
 		NSString *originalWmode = [self.container getAttribute:@"wmode"];
 		NSString *originalStyle = [self.container getAttribute:@"style"];
+		NSString *originalParentWmode = [(DOMElement *)[self.container parentNode] getAttribute:@"wmode"];
+		NSString *originalParentStyle = [(DOMElement *)[self.container parentNode] getAttribute:@"style"];
 
 		if (originalWmode != nil && [originalWmode length] > 0u && ![originalWmode isEqualToString:@"opaque"]) {
-			[originalOpacityDict setObject:originalWmode forKey:@"wmode"];
+			[originalOpacityDict setObject:originalWmode forKey:@"self-wmode"];
 			[self.container setAttribute:@"wmode" value:@"opaque"];
 		}
 
@@ -287,6 +294,16 @@ - (id) initWithArguments:(NSDictionary *)arguments
 			[self.container setAttribute:@"style" value:[originalStyle stringByAppendingString:opacityResetString]];
 		}
 
+		if (originalParentWmode != nil && [originalParentWmode length] > 0u && ![originalParentWmode isEqualToString:@"opaque"]) {
+			[originalOpacityDict setObject:originalParentWmode forKey:@"parent-wmode"];
+			[(DOMElement *)[self.container parentNode] setAttribute:@"wmode" value:@"opaque"];
+		}
+
+		if (originalParentStyle != nil && [originalParentStyle length] > 0u && ![originalParentStyle hasSuffix:opacityResetString]) {
+			[originalOpacityDict setObject:originalParentStyle forKey:@"parent-style"];
+			[(DOMElement *)[self.container parentNode] setAttribute:@"style" value:[originalParentStyle stringByAppendingString:opacityResetString]];
+		}
+
 		self.originalOpacityAttributes = originalOpacityDict;
     }
 
@@ -937,15 +954,25 @@ - (void) _prepareForConversion
 
 - (void) _revertToOriginalOpacityAttributes
 {
-	NSString *wmode = [self.originalOpacityAttributes objectForKey:@"wmode"];
-	if (wmode != nil ) {
-		[self.container setAttribute:@"wmode" value:wmode];
+	NSString *selfWmode = [self.originalOpacityAttributes objectForKey:@"self-wmode"];
+	if (selfWmode != nil ) {
+		[self.container setAttribute:@"wmode" value:selfWmode];
 	}
 
 	NSString *selfStyle = [self.originalOpacityAttributes objectForKey:@"self-style"];
 	if (selfStyle != nil ) {
 		[self.container setAttribute:@"style" value:selfStyle];
 	}
+
+	NSString *parentWmode = [self.originalOpacityAttributes objectForKey:@"parent-wmode"];
+	if (parentWmode != nil ) {
+		[(DOMElement *)[self.container parentNode] setAttribute:@"wmode" value:parentWmode];
+	}
+
+	NSString *parentStyle = [self.originalOpacityAttributes objectForKey:@"parent-style"];
+	if (parentStyle != nil ) {
+		[(DOMElement *)[self.container parentNode] setAttribute:@"style" value:parentStyle];
+	}
 }
 
 @synthesize webView = _webView;