feat(ios): add textAlignment

android/src/main/java/com/swmansion/enriched/textinput/EnrichedTextInputViewManager.kt

@@ -448,6 +448,13 @@ class EnrichedTextInputViewManager :
     view?.requestHTML(requestId)
   }
 
+  override fun setTextAlignment(
+    view: EnrichedTextInputView?,
+    alignment: String,
+  ) {
+    TODO("Not yet implemented")
+  }
+
   override fun measure(
     context: Context,
     localData: ReadableMap?,

apps/example/src/components/Toolbar.tsx

@@ -85,6 +85,18 @@ const STYLE_ITEMS = [
     name: 'checkbox-list',
     icon: 'check-square-o',
   },
+  {
+    name: 'align-left',
+    icon: 'align-left',
+  },
+  {
+    name: 'align-center',
+    icon: 'align-center',
+  },
+  {
+    name: 'align-right',
+    icon: 'align-right',
+  },
 ] as const;
 
 type Item = (typeof STYLE_ITEMS)[number];
@@ -168,6 +180,15 @@ export const Toolbar: FC<ToolbarProps> = ({
       case 'mention':
         editorRef.current?.startMention('@');
         break;
+      case 'align-left':
+        editorRef.current?.setTextAlignment('left');
+        break;
+      case 'align-center':
+        editorRef.current?.setTextAlignment('center');
+        break;
+      case 'align-right':
+        editorRef.current?.setTextAlignment('right');
+        break;
     }
   };
 
@@ -256,6 +277,12 @@ export const Toolbar: FC<ToolbarProps> = ({
         return stylesState.mention.isActive;
       case 'checkbox-list':
         return stylesState.checkboxList.isActive;
+      case 'align-left':
+        return stylesState.alignment === 'left';
+      case 'align-center':
+        return stylesState.alignment === 'center';
+      case 'align-right':
+        return stylesState.alignment === 'right';
       default:
         return false;
     }

apps/example/src/constants/editorConfig.ts

@@ -28,6 +28,7 @@ export const DEFAULT_STYLES: StylesState = {
   image: DEFAULT_STYLE_STATE,
   mention: DEFAULT_STYLE_STATE,
   checkboxList: DEFAULT_STYLE_STATE,
+  alignment: 'left',
 };
 
 export const DEFAULT_LINK_STATE = {

apps/example/src/screens/DevScreen.tsx

@@ -187,4 +187,14 @@ const styles = StyleSheet.create({
     height: 1000,
     backgroundColor: 'rgb(0, 26, 114)',
   },
+  alignmentLabel: {
+    marginTop: 20,
+    fontSize: 18,
+    fontWeight: 'bold',
+    textAlign: 'center',
+    color: 'rgb(0, 26, 114)',
+  },
+  alignmentButton: {
+    width: '25%',
+  },
 });

docs/API_REFERENCE.md

@@ -292,12 +292,14 @@ interface OnChangeStateEvent {
     isConflicting: boolean;
     isBlocking: boolean;
   };
+  alignment: string;
 }
 ```
 
 - `isActive` indicates if the style is active within current selection.
 - `isBlocking` indicates if the style is blocked by other currently active, meaning it can't be toggled.
 - `isConflicting` indicates if the style is in conflict with other currently active styles, meaning toggling it will remove conflicting style.
+- `alignment` indicates the current text alignment of the paragraph at the cursor position. Possible values: `'left'`, `'center'`, `'right'`, `'justify'`.
 
 | Type                                                        | Platform |
 |-------------------------------------------------------------|----------|
@@ -614,6 +616,16 @@ Sets the selection at the given indexes.
 - `start: number` - starting index of the selection.
 - `end: number` - first index after the selection's ending index. For just a cursor in place (no selection), `start` equals `end`.
 
+### `.setTextAlignment()`
+
+```ts
+setTextAlignment: (alignment: 'left' | 'center' | 'right' | 'justify' | 'default') => void;
+```
+
+Sets text alignment for the paragraph(s) at the current selection. When inside a list, the alignment is applied to all contiguous list items.
+
+- `alignment` - the desired text alignment. Use `'default'` to reset to the system natural alignment.
+
 ### `.startMention()`
 
 ```ts

ios/EnrichedTextInputView.mm

@@ -1,9 +1,11 @@
 #import "EnrichedTextInputView.h"
+#import "AlignmentUtils.h"
 #import "CoreText/CoreText.h"
 #import "ImageAttachment.h"
 #import "KeyboardUtils.h"
 #import "LayoutManagerExtension.h"
 #import "ParagraphAttributesUtils.h"
+#import "ParagraphsUtils.h"
 #import "RCTFabricComponentsPlugins.h"
 #import "StringExtension.h"
 #import "StyleHeaders.h"
@@ -53,6 +55,7 @@ @implementation EnrichedTextInputView {
   NSMutableDictionary<NSValue *, UIImageView *> *_attachmentViews;
   NSArray<NSDictionary *> *_contextMenuItems;
   NSString *_submitBehavior;
+  NSString *_recentlyEmittedAlignment;
 }
 
 // MARK: - Component utils
@@ -91,6 +94,7 @@ - (void)setDefaults {
   _blockedStyles = [[NSMutableSet alloc] init];
   _recentlyActiveLinkRange = NSMakeRange(0, 0);
   _recentlyActiveMentionRange = NSMakeRange(0, 0);
+  _recentlyEmittedAlignment = @"left";
   recentlyChangedRange = NSMakeRange(0, 0);
   _recentInputString = @"";
   _recentlyEmittedHtml = @"<html>\n<p></p>\n</html>";
@@ -1134,12 +1138,20 @@ - (void)tryUpdatingActiveStyles {
     }
   }
 
+  // detect alignment change
+  NSString *currentAlignment =
+      [AlignmentUtils currentAlignmentStringForInput:self];
+  if (![currentAlignment isEqualToString:_recentlyEmittedAlignment]) {
+    updateNeeded = YES;
+  }
+
   if (updateNeeded) {
     auto emitter = [self getEventEmitter];
     if (emitter != nullptr) {
       // update activeStyles and blockedStyles only if emitter is available
       _activeStyles = newActiveStyles;
       _blockedStyles = newBlockedStyles;
+      _recentlyEmittedAlignment = currentAlignment;
 
       emitter->onChangeState(
           {.bold = GET_STYLE_STATE([BoldStyle getStyleType]),
@@ -1160,7 +1172,8 @@ - (void)tryUpdatingActiveStyles {
            .blockQuote = GET_STYLE_STATE([BlockQuoteStyle getStyleType]),
            .codeBlock = GET_STYLE_STATE([CodeBlockStyle getStyleType]),
            .image = GET_STYLE_STATE([ImageStyle getStyleType]),
-           .checkboxList = GET_STYLE_STATE([CheckboxListStyle getStyleType])});
+           .checkboxList = GET_STYLE_STATE([CheckboxListStyle getStyleType]),
+           .alignment = [currentAlignment UTF8String]});
     }
   }
 
@@ -1304,6 +1317,9 @@ - (void)handleCommand:(const NSString *)commandName args:(const NSArray *)args {
   } else if ([commandName isEqualToString:@"requestHTML"]) {
     NSInteger requestId = [((NSNumber *)args[0]) integerValue];
     [self requestHTML:requestId];
+  } else if ([commandName isEqualToString:@"setTextAlignment"]) {
+    NSString *alignmentString = (NSString *)args[0];
+    [AlignmentUtils applyAlignmentFromString:alignmentString toInput:self];
   }
 }
 

ios/extensions/LayoutManagerExtension.mm

@@ -267,6 +267,7 @@ - (void)drawLists:(EnrichedTextInputView *)typedInput
       NSForegroundColorAttributeName :
           [typedInput->config orderedListMarkerColor]
     };
+    CGFloat indent = pStyle.firstLineHeadIndent;
 
     NSArray *paragraphs = [ParagraphsUtils
         getSeparateParagraphsRangesIn:typedInput->textView
@@ -308,18 +309,21 @@ - (void)drawLists:(EnrichedTextInputView *)typedInput
                                                      marker:marker
                                            markerAttributes:markerAttributes
                                                      origin:origin
-                                                   usedRect:textUsedRect];
+                                                   usedRect:textUsedRect
+                                                     indent:indent];
                                      } else if (markerFormat ==
                                                 NSTextListMarkerDisc) {
                                        [self drawBullet:typedInput
                                                  origin:origin
-                                               usedRect:textUsedRect];
+                                               usedRect:textUsedRect
+                                                 indent:indent];
                                      } else if ([markerFormat
                                                     hasPrefix:@"{checkbox"]) {
                                        [self drawCheckbox:typedInput
                                              markerFormat:markerFormat
                                                    origin:origin
-                                                 usedRect:textUsedRect];
+                                                 usedRect:textUsedRect
+                                                   indent:indent];
                                      }
                                      // only first line of a list gets its
                                      // marker drawn
@@ -387,7 +391,8 @@ - (CGRect)getTextAlignedUsedRect:(CGRect)usedRect font:(UIFont *)font {
 - (void)drawCheckbox:(EnrichedTextInputView *)typedInput
         markerFormat:(NSString *)markerFormat
               origin:(CGPoint)origin
-            usedRect:(CGRect)usedRect {
+            usedRect:(CGRect)usedRect
+              indent:(CGFloat)indent {
   BOOL isChecked = [markerFormat isEqualToString:@"{checkbox:1}"];
 
   UIImage *image = isChecked ? typedInput->config.checkboxCheckedImage
@@ -396,18 +401,19 @@ - (void)drawCheckbox:(EnrichedTextInputView *)typedInput
   CGFloat boxSize = [typedInput->config checkboxListBoxSize];
 
   CGFloat centerY = CGRectGetMidY(usedRect) + origin.y;
-  CGFloat boxX = origin.x + usedRect.origin.x - gapWidth - boxSize;
+  CGFloat boxX = origin.x + indent - gapWidth - boxSize;
   CGFloat boxY = centerY - boxSize / 2.0;
 
   [image drawAtPoint:CGPointMake(boxX, boxY)];
 }
 
 - (void)drawBullet:(EnrichedTextInputView *)typedInput
             origin:(CGPoint)origin
-          usedRect:(CGRect)usedRect {
+          usedRect:(CGRect)usedRect
+            indent:(CGFloat)indent {
   CGFloat gapWidth = [typedInput->config unorderedListGapWidth];
   CGFloat bulletSize = [typedInput->config unorderedListBulletSize];
-  CGFloat bulletX = origin.x + usedRect.origin.x - gapWidth - bulletSize / 2;
+  CGFloat bulletX = origin.x + indent - gapWidth - bulletSize / 2;
   CGFloat centerY = CGRectGetMidY(usedRect) + origin.y;
 
   CGContextRef context = UIGraphicsGetCurrentContext();
@@ -425,10 +431,11 @@ - (void)drawDecimal:(EnrichedTextInputView *)typedInput
               marker:(NSString *)marker
     markerAttributes:(NSDictionary *)markerAttributes
               origin:(CGPoint)origin
-            usedRect:(CGRect)usedRect {
+            usedRect:(CGRect)usedRect
+              indent:(CGFloat)indent {
   CGFloat gapWidth = [typedInput->config orderedListGapWidth];
   CGSize markerSize = [marker sizeWithAttributes:markerAttributes];
-  CGFloat markerX = usedRect.origin.x - gapWidth - markerSize.width / 2;
+  CGFloat markerX = origin.x + indent - gapWidth - markerSize.width / 2;
   CGFloat centerY = CGRectGetMidY(usedRect) + origin.y;
   CGFloat markerY = centerY - markerSize.height / 2.0;