Add formatter extension to toggle formatting

Components/Sources/Components/Components/Editors/Source Editor/Formatter Extensions/WKSourceEditorFormatterStrikethrough+ButtonActions.swift

@@ -0,0 +1,8 @@
+import Foundation
+import ComponentsObjC
+
+extension WKSourceEditorFormatterStrikethrough {
+    func toggleStrikethroughFormatting(action: WKSourceEditorFormatterButtonAction, in textView: UITextView) {
+        toggleFormatting(startingFormattingString: "<s>", endingFormattingString: "</s>", action: action, in: textView)
+    }
+}

Components/Sources/Components/Components/Editors/Source Editor/WKSourceEditorViewController.swift

@@ -360,6 +360,8 @@ extension WKSourceEditorViewController: WKEditorInputViewDelegate {
     }
 
     func didTapStrikethrough(isSelected: Bool) {
+        let action: WKSourceEditorFormatterButtonAction = isSelected ? .remove : .add
+        textFrameworkMediator.strikethroughFormatter?.toggleStrikethroughFormatting(action: action, in: textView)
     }
 
     func didTapClose() {