[Links] Block-based tap and long press handling

TTTAttributedLabel · Feb 28, 2015 · c34d4e0 · c34d4e0
1 parent b62d8ca
commit c34d4e0
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Showing 4 changed files with 75 additions and 2 deletions.
diff --git a/Example/Espressos.xcodeproj/project.pbxproj b/Example/Espressos.xcodeproj/project.pbxproj
@@ -473,6 +473,8 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_GENERATE_TEST_COVERAGE_FILES = YES;
+				GCC_INSTRUMENT_PROGRAM_FLOW_ARCS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = DEBUG;
 				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
@@ -520,6 +522,8 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_GENERATE_TEST_COVERAGE_FILES = YES;
+				GCC_INSTRUMENT_PROGRAM_FLOW_ARCS = YES;
 				GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = YES;
 				GCC_TREAT_INCOMPATIBLE_POINTER_TYPE_WARNINGS_AS_ERRORS = YES;
 				GCC_VERSION = "";

diff --git a/Example/TTTAttributedLabelTests/TTTAttributedLabelTests.m b/Example/TTTAttributedLabelTests/TTTAttributedLabelTests.m
@@ -716,6 +716,46 @@ - (void)testLongTextCheckingPressCallsDelegate {
     [TTTDelegateMock verify];
 }
 
+- (void)testLinkPressCallsLinkBlock {
+    label.text = TTTAttributedTestString();
+    TTTSizeAttributedLabel(label);
+
+    __block BOOL didCallTapBlock = NO;
+    __block BOOL didCallLongPressBlock = NO;
+
+    NSTextCheckingResult *result = [NSTextCheckingResult linkCheckingResultWithRange:NSMakeRange(0, 4) URL:testURL];
+    TTTAttributedLabelLink *link = [[TTTAttributedLabelLink alloc] initWithAttributesFromLabel:label
+                                                                            textCheckingResult:result];
+
+    __weak typeof (link) weakLink = link;
+    __weak typeof (result) weakResult = result;
+    link.linkTapBlock = ^(TTTAttributedLabel *aLabel, TTTAttributedLabelLink *aLink) {
+        didCallTapBlock = YES;
+
+        expect(aLabel).to.equal(label);
+        expect(aLink).to.equal(weakLink);
+        expect(aLink.result).to.equal(weakResult);
+    };
+
+    link.linkLongPressBlock = ^(__unused TTTAttributedLabel *aLabel, __unused TTTAttributedLabelLink *aLink) {
+        didCallLongPressBlock = YES;
+    };
+
+    [label addLink:link];
+
+    TTTSimulateTapOnLabelAtPoint(label, CGPointMake(5, 3));
+
+    expect(didCallTapBlock).will.beTruthy();
+    expect(didCallLongPressBlock).will.beFalsy();
+
+    didCallTapBlock = NO;
+
+    TTTSimulateLongPressOnLabelAtPointWithDuration(label, CGPointMake(5, 5), 0.6f);
+
+    expect(didCallTapBlock).will.beFalsy();
+    expect(didCallLongPressBlock).will.beTruthy();
+}
+
 #pragma mark - UIPasteboard
 
 - (void)testCopyingLabelText {

diff --git a/TTTAttributedLabel/TTTAttributedLabel.h b/TTTAttributedLabel/TTTAttributedLabel.h
@@ -616,6 +616,8 @@ didLongPressLinkWithTextCheckingResult:(NSTextCheckingResult *)result
 
 @interface TTTAttributedLabelLink : NSObject <NSCoding>
 
+typedef void (^TTTAttributedLabelLinkBlock) (TTTAttributedLabel *, TTTAttributedLabelLink *);
+
 /**
  An `NSTextCheckingResult` representing the link's location and type.
  */
@@ -641,6 +643,20 @@ didLongPressLinkWithTextCheckingResult:(NSTextCheckingResult *)result
  */
 @property (nonatomic, copy) NSString *accessibilityValue;
 
+/**
+ A block called when this link is tapped.
+ If non-nil, tapping on this link will call this block instead of the 
+ @c TTTAttributedLabelDelegate tap methods, which will not be called for this link.
+ */
+@property (nonatomic, copy) TTTAttributedLabelLinkBlock linkTapBlock;
+
+/**
+ A block called when this link is long-pressed.
+ If non-nil, long pressing on this link will call this block instead of the
+ @c TTTAttributedLabelDelegate long press methods, which will not be called for this link.
+ */
+@property (nonatomic, copy) TTTAttributedLabelLinkBlock linkLongPressBlock;
+
 /**
  Initializes a link using the attribute dictionaries specified.
  

diff --git a/TTTAttributedLabel/TTTAttributedLabel.m b/TTTAttributedLabel/TTTAttributedLabel.m
@@ -1502,6 +1502,12 @@ - (void)touchesEnded:(NSSet *)touches
            withEvent:(UIEvent *)event
 {
     if (self.activeLink) {
+        if (self.activeLink.linkTapBlock) {
+            self.activeLink.linkTapBlock(self, self.activeLink);
+            self.activeLink = nil;
+            return;
+        }
+
         NSTextCheckingResult *result = self.activeLink.result;
         self.activeLink = nil;
 
@@ -1573,9 +1579,16 @@ - (void)longPressGestureDidFire:(UILongPressGestureRecognizer *)sender {
     switch (sender.state) {
         case UIGestureRecognizerStateBegan: {
             CGPoint touchPoint = [sender locationInView:self];
-            NSTextCheckingResult *result = [self linkAtPoint:touchPoint].result;
+            TTTAttributedLabelLink *link = [self linkAtPoint:touchPoint];
 
-            if (result) {
+            if (link) {
+                if (link.linkLongPressBlock) {
+                    link.linkLongPressBlock(self, link);
+                    return;
+                }
+
+                NSTextCheckingResult *result = link.result;
+
                 switch (result.resultType) {
                     case NSTextCheckingTypeLink:
                         if ([self.delegate respondsToSelector:@selector(attributedLabel:didLongPressLinkWithURL:atPoint:)]) {