add handling of NSLinkAttributedName attribute for URL Link

KILabel/Source/KILabel.h

@@ -308,6 +308,15 @@ IB_DESIGNABLE
  */
 + (instancetype)linkClassifierWithRegex:(NSRegularExpression *)regex;
 
+/**
+ *  Create a new instance of KILabelLinkClassifier that will use the given regex for classifying and NSLinkAttributeName attribute
+ *
+ *  @param regex Regex used to match strings for links
+ *
+ *  @return Instance of KILabelLinkClassifier
+ */
++ (instancetype)linkClassifierWithLinkAndRegex:(NSRegularExpression *)regex;
+
 /**
  *  Helper method for extracting the string to use as the "link" from an attributed string. The
  *  plain text matching the range will be used, unless an NSLinkAttributedName property is present.

KILabel/Source/KILabel.m

@@ -65,6 +65,7 @@ @implementation KILabel
     KILabelLinkClassifier *_userHandleClassifier;
     KILabelLinkClassifier *_hashtagClassifier;
     KILabelLinkClassifier *_urlClassifier;
+    NSDictionary *touchedLink;
 }
 
 #pragma mark - Construction
@@ -145,7 +146,7 @@ - (void)setupLinkClassifiers
     // Use a data detector to find urls in the text
     NSError *error = nil;
     NSDataDetector *detector = [[NSDataDetector alloc] initWithTypes:NSTextCheckingTypeLink error:&error];
-    _urlClassifier = [KILabelLinkClassifier linkClassifierWithRegex:detector];
+    _urlClassifier = [KILabelLinkClassifier linkClassifierWithLinkAndRegex:detector];
 
     // Make sure the required link classifiers are attached
     [self updateDefaultLinkClassifiers];
@@ -393,6 +394,11 @@ - (void)setText:(NSString *)text
 
 - (void)setAttributedText:(NSAttributedString *)attributedText
 {
+    if(!attributedText)
+    {
+      attributedText = [[NSAttributedString alloc] initWithString:@"" attributes:[self attributesFromProperties]];
+    }
+
     // Pass the text to the super class first
     [super setAttributedText:attributedText];
 
@@ -722,7 +728,6 @@ - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
     _isTouchMoved = NO;
 
     // Get the info for the touched link if there is one
-    NSDictionary *touchedLink;
     CGPoint touchLocation = [[touches anyObject] locationInView:self];
     touchedLink = [self linkAtPoint:touchLocation];
 
@@ -756,10 +761,8 @@ - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
     }
 
     // Get the info for the touched link if there is one
-    NSDictionary *touchedLink;
     CGPoint touchLocation = [[touches anyObject] locationInView:self];
-    touchedLink = [self linkAtPoint:touchLocation];
-
+
     if (touchedLink)
     {
         NSRange range = [[touchedLink objectForKey:KILabelRangeKey] rangeValue];
@@ -844,6 +847,65 @@ - (instancetype)initWithClassifier:(KILinkClassifier)classifier
     return self;
 }
 
++ (instancetype)linkClassifierWithLinkAndRegex:(NSRegularExpression *)regex
+{
+  KILabelLinkClassifier *classifier = [[KILabelLinkClassifier alloc] initWithClassifier:^NSArray *(KILabel *label) {
+    NSMutableArray *rangesForUserHandles = [[NSMutableArray alloc] init];
+
+    // We run the regex on the label's plain text
+    NSString *text = label.text;
+
+    // Run the expression and get matches
+    NSArray *matches = [regex matchesInString:text options:0 range:NSMakeRange(0, text.length)];
+
+    // Add all our ranges to the result
+    for (NSTextCheckingResult *match in matches)
+    {
+      NSRange matchRange = [match range];
+      NSString *matchString = [KILabelLinkClassifier linkStringFromAttributedString:label.attributedText
+                                                                          withRange:matchRange];
+
+      // Add the link if its not in our ignore list
+      if (![label.ignoredKeywords containsObject:[matchString lowercaseString]])
+      {
+        [rangesForUserHandles addObject:@{KILabelRangeKey : [NSValue valueWithRange:matchRange],
+                                          KILabelLinkKey : matchString
+                                          }];
+      }
+    }
+
+    // check for NSLinkAttributeName too
+
+    [label.attributedText enumerateAttribute:NSLinkAttributeName
+                                     inRange:NSMakeRange(0, label.attributedText.length)
+                                     options:0
+                                  usingBlock:^(id value, NSRange range, BOOL *stop) {
+
+                                       if(!value)
+                                       {
+                                         return;
+                                       }
+
+                                       NSRange matchRange = range;
+                                       NSString *matchString = [KILabelLinkClassifier linkStringFromAttributedString:label.attributedText
+                                                                                                           withRange:matchRange];
+
+                                       // Add the link if its not in our ignore list
+                                       if (![label.ignoredKeywords containsObject:[matchString lowercaseString]])
+                                       {
+                                         [rangesForUserHandles addObject:@{KILabelRangeKey : [NSValue valueWithRange:matchRange],
+                                                                           KILabelLinkKey : matchString
+                                                                           }];
+                                       }
+    }];
+
+
+    return rangesForUserHandles;
+  }];
+
+  return classifier;
+}
+
 + (instancetype)linkClassifierWithRegex:(NSRegularExpression *)regex
 {
     KILabelLinkClassifier *classifier = [[KILabelLinkClassifier alloc] initWithClassifier:^NSArray *(KILabel *label) {