Merge pull request #85 from venmo/daz/changeHeight

Create delegate method for changes in tokenFieldHeight
venmo · Jan 6, 2016 · 3f55203 · 3f55203
2 parents 7ca4e1f + a6c26aa
commit 3f55203
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Showing 2 changed files with 13 additions and 4 deletions.
diff --git a/VENTokenField/VENTokenField.h b/VENTokenField/VENTokenField.h
@@ -31,6 +31,7 @@ NS_ASSUME_NONNULL_BEGIN
 - (void)tokenField:(VENTokenField *)tokenField didDeleteTokenAtIndex:(NSUInteger)index;
 - (void)tokenField:(VENTokenField *)tokenField didChangeText:(nullable NSString *)text;
 - (void)tokenFieldDidBeginEditing:(VENTokenField *)tokenField;
+- (void)tokenField:(VENTokenField *)tokenField didChangeContentHeight:(CGFloat)height;
 @end
 
 @protocol VENTokenFieldDataSource <NSObject>

diff --git a/VENTokenField/VENTokenField.m b/VENTokenField/VENTokenField.m
@@ -375,17 +375,25 @@ - (UILabel *)toLabel
 
 - (void)adjustHeightForCurrentY:(CGFloat)currentY
 {
+    CGFloat oldHeight = self.height;
+    CGFloat height;
     if (currentY + [self heightForToken] > CGRectGetHeight(self.frame)) { // needs to grow
         if (currentY + [self heightForToken] <= self.maxHeight) {
-            [self setHeight:currentY + [self heightForToken] + self.verticalInset * 2];
+            height = currentY + [self heightForToken] + self.verticalInset * 2;
         } else {
-            [self setHeight:self.maxHeight];
+            height = self.maxHeight;
         }
     } else { // needs to shrink
         if (currentY + [self heightForToken] > self.originalHeight) {
-            [self setHeight:currentY + [self heightForToken] + self.verticalInset * 2];
+            height = currentY + [self heightForToken] + self.verticalInset * 2;
         } else {
-            [self setHeight:self.originalHeight];
+            height = self.originalHeight;
+        }
+    }
+    if (oldHeight != height) {
+        [self setHeight:height];
+        if ([self.delegate respondsToSelector:@selector(tokenField:didChangeContentHeight:)]) {
+            [self.delegate tokenField:self didChangeContentHeight:height];
         }
     }
 }