Multiline <TextInput> was fixed to match layout logic of singlelined one

Summary: Now padding, border and intinsic sizes are computed same way as for singlelined text input.

Reviewed By: mmmulani

Differential Revision: D5075880

fbshipit-source-id: 1bc2fd479c13a003c717b1fc3d9c69f4639d4444

Libraries/Text/RCTTextView.h

@@ -21,7 +21,6 @@
 @property (nonatomic, assign) BOOL blurOnSubmit;
 @property (nonatomic, assign) BOOL clearTextOnFocus;
 @property (nonatomic, assign) BOOL selectTextOnFocus;
-@property (nonatomic, assign) UIEdgeInsets contentInset;
 @property (nonatomic, assign) BOOL automaticallyAdjustContentInsets;
 @property (nonatomic, copy) NSString *text;
 @property (nonatomic, strong) UIColor *placeholderTextColor;
@@ -30,6 +29,8 @@
 @property (nonatomic, assign) NSInteger mostRecentEventCount;
 @property (nonatomic, strong) NSNumber *maxLength;
 @property (nonatomic, assign, readonly) CGSize contentSize;
+@property (nonatomic, assign) UIEdgeInsets reactPaddingInsets;
+@property (nonatomic, assign) UIEdgeInsets reactBorderInsets;
 
 @property (nonatomic, copy) RCTDirectEventBlock onChange;
 @property (nonatomic, copy) RCTDirectEventBlock onContentSizeChange;

Libraries/Text/RCTTextView.m

@@ -44,7 +44,6 @@
   RCTAssertParam(bridge);
 
   if (self = [super initWithFrame:CGRectZero]) {
-    _contentInset = UIEdgeInsetsZero;
     _bridge = bridge;
     _eventDispatcher = bridge.eventDispatcher;
     _blurOnSubmit = NO;
@@ -203,12 +202,22 @@ static NSAttributedString *removeReactTagFromString(NSAttributedString *string)
 - (void)setFont:(UIFont *)font
 {
   _textView.font = font;
+  [self setNeedsLayout];
 }
 
-- (void)setContentInset:(UIEdgeInsets)contentInset
+- (void)setReactPaddingInsets:(UIEdgeInsets)reactPaddingInsets
 {
-  _contentInset = contentInset;
-  _textView.textContainerInset = contentInset;
+  _reactPaddingInsets = reactPaddingInsets;
+  // We apply `paddingInsets` as `_textView`'s `textContainerInset`.
+  _textView.textContainerInset = reactPaddingInsets;
+  [self setNeedsLayout];
+}
+
+- (void)setReactBorderInsets:(UIEdgeInsets)reactBorderInsets
+{
+  _reactBorderInsets = reactBorderInsets;
+  // We apply `borderInsets` as `_textView` layout offset.
+  _textView.frame = UIEdgeInsetsInsetRect(self.bounds, reactBorderInsets);
   [self setNeedsLayout];
 }
 
@@ -270,6 +279,7 @@ static NSAttributedString *removeReactTagFromString(NSAttributedString *string)
 - (void)setPlaceholder:(NSString *)placeholder
 {
   _textView.placeholderText = placeholder;
+  [self setNeedsLayout];
 }
 
 - (UIColor *)placeholderTextColor
@@ -541,10 +551,11 @@ static BOOL findMismatch(NSString *first, NSString *second, NSRange *firstRange,
 
 - (CGSize)contentSize
 {
-  // Returning value does NOT include insets.
+  // Returning value does NOT include border and padding insets.
   CGSize contentSize = self.intrinsicContentSize;
-  contentSize.width -= _contentInset.left + _contentInset.right;
-  contentSize.height -= _contentInset.top + _contentInset.bottom;
+  UIEdgeInsets compoundInsets = self.reactCompoundInsets;
+  contentSize.width -= compoundInsets.left + compoundInsets.right;
+  contentSize.height -= compoundInsets.top + compoundInsets.bottom;
   return contentSize;
 }
 
@@ -577,13 +588,26 @@ static BOOL findMismatch(NSString *first, NSString *second, NSRange *firstRange,
   // Calling `sizeThatFits:` is probably more expensive method to compute
   // content size compare to direct access `_textView.contentSize` property,
   // but seems `sizeThatFits:` returns more reliable and consistent result.
-  // Returning value DOES include insets.
+  // Returning value DOES include border and padding insets.
   return [self sizeThatFits:CGSizeMake(self.bounds.size.width, INFINITY)];
 }
 
 - (CGSize)sizeThatFits:(CGSize)size
 {
-  return [_textView sizeThatFits:size];
+  CGFloat compoundHorizontalBorderInset = _reactBorderInsets.left + _reactBorderInsets.right;
+  CGFloat compoundVerticalBorderInset = _reactBorderInsets.top + _reactBorderInsets.bottom;
+
+  size.width -= compoundHorizontalBorderInset;
+  size.height -= compoundVerticalBorderInset;
+
+  // Note: `paddingInsets` already included in `_textView` size
+  // because it was applied as `textContainerInset`.
+  CGSize fittingSize = [_textView sizeThatFits:size];
+
+  fittingSize.width += compoundHorizontalBorderInset;
+  fittingSize.height += compoundVerticalBorderInset;
+
+  return fittingSize;
 }
 
 - (void)layoutSubviews

Libraries/Text/RCTTextViewManager.m

@@ -83,9 +83,11 @@ RCT_REMAP_VIEW_PROPERTY(dataDetectorTypes, textView.dataDetectorTypes, UIDataDet
 - (RCTViewManagerUIBlock)uiBlockToAmendWithShadowView:(RCTShadowView *)shadowView
 {
   NSNumber *reactTag = shadowView.reactTag;
-  UIEdgeInsets padding = shadowView.paddingAsInsets;
+  UIEdgeInsets borderAsInsets = shadowView.borderAsInsets;
+  UIEdgeInsets paddingAsInsets = shadowView.paddingAsInsets;
   return ^(RCTUIManager *uiManager, NSDictionary<NSNumber *, RCTTextView *> *viewRegistry) {
-    viewRegistry[reactTag].contentInset = padding;
+    viewRegistry[reactTag].reactBorderInsets = borderAsInsets;
+    viewRegistry[reactTag].reactPaddingInsets = paddingAsInsets;
   };
 }
 

Libraries/Text/RCTUITextView.m

@@ -10,6 +10,7 @@
 #import "RCTUITextView.h"
 
 #import <React/UIView+React.h>
+#import <React/RCTUtils.h>
 
 @implementation RCTUITextView
 {
@@ -123,6 +124,21 @@ static UIColor *defaultPlaceholderTextColor()
 }
 
 - (CGSize)sizeThatFits:(CGSize)size
+{
+  // Returned fitting size depends on text size and placeholder size.
+  CGSize textSize = [self fixedSizeThatFits:size];
+
+  UIEdgeInsets padddingInsets = self.textContainerInset;
+  NSString *placeholderText = self.placeholderText ?: @"";
+  CGSize placeholderSize = [placeholderText sizeWithAttributes:@{NSFontAttributeName: self.font ?: defaultPlaceholderFont()}];
+  placeholderSize = CGSizeMake(RCTCeilPixelValue(placeholderSize.width), RCTCeilPixelValue(placeholderSize.height));
+  placeholderSize.width += padddingInsets.left + padddingInsets.right;
+  placeholderSize.height += padddingInsets.top + padddingInsets.bottom;
+
+  return CGSizeMake(MAX(textSize.width, placeholderSize.width), MAX(textSize.height, placeholderSize.height));
+}
+
+- (CGSize)fixedSizeThatFits:(CGSize)size
 {
   // UITextView on iOS 8 has a bug that automatically scrolls to the top
   // when calling `sizeThatFits:`. Use a copy so that self is not screwed up.

RNTester/js/TextInputExample.ios.js

@@ -763,18 +763,39 @@ exports.examples = [
     title: 'TextInput Intrinsic Size',
     render: function() {
       return (
-        <View style={{height: 80}}>
-          <TextInput
-            style={{
-              position: 'absolute',
-              fontSize: 16,
-              backgroundColor: '#eeeeee',
-              borderWidth: 5,
-              padding: 10,
-              paddingTop: 20,
-            }}
-            placeholder="Placeholder defines intrinsic size"
-          />
+        <View>
+          <Text>Singleline TextInput</Text>
+          <View style={{height: 80}}>
+            <TextInput
+              style={{
+                position: 'absolute',
+                fontSize: 16,
+                backgroundColor: '#eeeeee',
+                borderColor: '#666666',
+                borderWidth: 5,
+                padding: 10,
+                paddingTop: 20,
+              }}
+              placeholder="Placeholder defines intrinsic size"
+            />
+          </View>
+          <Text>Multiline TextInput</Text>
+          <View style={{height: 80}}>
+            <TextInput
+              style={{
+                position: 'absolute',
+                fontSize: 16,
+                backgroundColor: '#eeeeee',
+                borderColor: '#666666',
+                borderWidth: 5,
+                padding: 10,
+                paddingTop: 20,
+                borderTopWidth: 20,
+              }}
+              multiline={true}
+              placeholder="Placeholder defines intrinsic size"
+            />
+          </View>
         </View>
       );
     }