feat: Synchronize Android host undo/redo controls

Communicate undo/redo availability state to Android host app.
wordpress-mobile · Jan 8, 2025 · 007bb41 · 007bb41
1 parent beaefbc
commit 007bb41
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/android/Gutenberg/src/main/java/org/wordpress/gutenberg/GutenbergView.kt b/android/Gutenberg/src/main/java/org/wordpress/gutenberg/GutenbergView.kt
@@ -53,13 +53,18 @@ class GutenbergView : WebView {
 
     private var onFileChooserRequested: ((Intent, Int) -> Unit)? = null
     private var contentChangeListener: ContentChangeListener? = null
+    private var historyChangeListener: HistoryChangeListener? = null
     private var openMediaLibraryListener: OpenMediaLibraryListener? = null
     private var editorDidBecomeAvailableListener: EditorAvailableListener? = null
 
     fun setContentChangeListener(listener: ContentChangeListener) {
         contentChangeListener = listener
     }
 
+    fun setHistoryChangeListener(listener: HistoryChangeListener) {
+        historyChangeListener = listener
+    }
+
     fun setOpenMediaLibraryListener(listener: OpenMediaLibraryListener) {
         openMediaLibraryListener = listener
     }
@@ -263,6 +268,10 @@ class GutenbergView : WebView {
         fun onContentChanged(title: String, content: String)
     }
 
+    interface HistoryChangeListener {
+        fun onHistoryChanged(hasUndo: Boolean, hasRedo: Boolean)
+    }
+
     sealed class Value {
         data class Single(val value: Int): Value()
         data class Multiple(val values: IntArray): Value() {
@@ -329,6 +338,11 @@ class GutenbergView : WebView {
         }, false)
     }
 
+    @JavascriptInterface
+    fun onEditorHistoryChanged(hasUndo: Boolean, hasRedo: Boolean) {
+        historyChangeListener?.onHistoryChanged(hasUndo, hasRedo)
+    }
+
     @JavascriptInterface
     fun onBlocksChanged(isEmpty: Boolean) {
         if(isEmpty) {
@@ -400,6 +414,7 @@ class GutenbergView : WebView {
         clearConfig()
         this.stopLoading()
         contentChangeListener = null
+        historyChangeListener = null
         editorDidBecomeAvailable = null
         filePathCallback = null
         onFileChooserRequested = null