//

 //  AIDefaultFontRemoval.m

 //  Adium

 //

 //  Created by Zachary West on 2009-10-28.

 //  Copyright 2009  . All rights reserved.

 //

 #import "AIDefaultFontRemovalPlugin.h"

 #import <AIUtilities/AIFontAdditions.h>

 #import <AIUtilities/AIColorAdditions.h>

 @implementation AIDefaultFontRemovalPlugin

 - (void)installPlugin

 {

 	// We only monitor outgoing messages.

 	[adium.contentController registerContentFilter:self ofType:AIFilterContent direction:AIFilterOutgoing];	

 }

 - (void)uninstallPlugin

 {

 	[adium.contentController unregisterContentFilter:self];

 }

 - (void)dealloc

 {

 	[defaultRemovedAttributes release];

 	[super dealloc];

 }

 - (NSAttributedString *)filterAttributedString:(NSAttributedString *)inAttributedString context:(id)context

 {

 	if (!inAttributedString || ![inAttributedString length]) return inAttributedString;

 	NSMutableAttributedString *mutableString = [inAttributedString mutableCopy];

 	if (!defaultRemovedAttributes) {

 		NSFont *defaultFont = [[adium.preferenceController defaultPreferenceForKey:KEY_FORMATTING_FONT

 																			 group:PREF_GROUP_FORMATTING

 																			object:nil] representedFont];

 		defaultRemovedAttributes = [[NSDictionary dictionaryWithObjectsAndKeys:

 									 defaultFont, NSFontAttributeName,

 									 [NSColor colorWithCalibratedRed:1.0 green:1.0 blue:1.0 alpha:1.0], NSBackgroundColorAttributeName,

 									 nil] retain];

 	}

 	for (NSString *attributeName in defaultRemovedAttributes.allKeys) {

 		NSUInteger position = 0;

 		while (position < mutableString.length) {

 			NSRange attributeRange;

 			id attributeValue = [mutableString attribute:attributeName

 												 atIndex:position

 										  effectiveRange:&attributeRange];

 			if (attributeValue && [attributeValue isEqualTo:[defaultRemovedAttributes objectForKey:attributeName]]) {

 				[mutableString removeAttribute:attributeName range:attributeRange];

 			}

 			position += attributeRange.length;

 		}

 	}

 	return [mutableString autorelease];

 }

 /*!

  * @brief When should this run?

  *

  * We want this font removal to occur as early as possible, in case any other filters try and modify the fonts.

  */

 - (CGFloat)filterPriority

 {

 	return HIGHEST_FILTER_PRIORITY;

 }

 @end