feat: Pass origin of selected cell in onPress callback (#196)

Author: emielvanliere

RNTableView/RNTableView.m

@@ -530,6 +530,13 @@ - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath
     newValue[@"target"] = self.reactTag;
     newValue[@"selectedIndex"] = [NSNumber numberWithInteger:indexPath.item];
     newValue[@"selectedSection"] = [NSNumber numberWithInteger:indexPath.section];
+
+    CGRect selectedCellRect = [tableView rectForRowAtIndexPath:indexPath];
+    selectedCellRect = CGRectOffset(selectedCellRect, -tableView.contentOffset.x, -tableView.contentOffset.y);
+    newValue[@"selectedOrigin"] = @{
+                                    @"x": @(selectedCellRect.origin.x),
+                                    @"y": @(selectedCellRect.origin.y)
+                                    };
 
     /*
      * if allowToggle is enabled and we tap an already selected row, then remove the selection.

RNTableView/RNTableViewManager.m

@@ -47,6 +47,7 @@ - (NSArray *)customDirectEventTypes
 RCT_EXPORT_VIEW_PROPERTY(additionalItems, NSArray)
 RCT_EXPORT_VIEW_PROPERTY(selectedIndex, NSInteger)
 RCT_EXPORT_VIEW_PROPERTY(selectedSection, NSInteger)
+RCT_EXPORT_VIEW_PROPERTY(selectedOrigin, CGPoint)
 RCT_EXPORT_VIEW_PROPERTY(cellHeight, float)
 RCT_EXPORT_VIEW_PROPERTY(footerHeight, float)
 RCT_EXPORT_VIEW_PROPERTY(headerHeight, float)

src/index.d.ts

@@ -33,6 +33,7 @@ interface OnPressCallBack extends CallBack {
   children: string
   selectedIndex: number
   selectedSection: number
+  selectedOrigin: PointPropType
   footerLabel?: string
   label?: string
 }