save undo redo history

Author: tranleduy2000

.idea/misc.xml

@@ -17,6 +17,8 @@
 
 package com.duy.ide.editor.content;
 
+import android.content.SharedPreferences;
+
 /**
  * Created by Duy on 26-Apr-18.
  */
@@ -32,4 +34,8 @@ public interface IUndoManager {
     void disable();
 
     void enable();
+
+    void restore(SharedPreferences preferences);
+
+    void save(SharedPreferences preferences);
 }

lib-n-ide/src/main/java/com/duy/ide/editor/content/IUndoManager.java

@@ -17,6 +17,7 @@
 
 package com.duy.ide.editor.content;
 
+import android.content.SharedPreferences;
 import android.widget.EditText;
 
 public class UndoManager implements IUndoManager {
@@ -50,6 +51,18 @@ public void enable() {
         mUndoRedoHelper.attach();
     }
 
+    @Override
+    public void restore(SharedPreferences preferences) {
+        mUndoRedoHelper.restorePersistentState(preferences, "");
+    }
+
+    @Override
+    public void save(SharedPreferences preferences) {
+        SharedPreferences.Editor editor = preferences.edit();
+        mUndoRedoHelper.storePersistentState(editor, "");
+        editor.apply();
+    }
+
     @Override
     public void undo() {
         if (canUndo()) {

lib-n-ide/src/main/java/com/duy/ide/editor/content/UndoManager.java

@@ -18,6 +18,7 @@
 package com.duy.ide.editor.view;
 
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.graphics.Rect;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
@@ -146,6 +147,16 @@ public void enableUndoRedoFilter() {
         mUndoManager.enable();
     }
 
+    @Override
+    public void saveHistory(SharedPreferences preferences) {
+
+    }
+
+    @Override
+    public void restoreEditHistory(SharedPreferences preferences) {
+        mUndoManager.restore(preferences);
+    }
+
     @Override
     public void disableUndoRedoFilter() {
         mUndoManager.disable();

lib-n-ide/src/main/java/com/duy/ide/editor/view/EditActionSupportEditor.java

@@ -17,6 +17,7 @@
 
 package com.duy.ide.editor.view;
 
+import android.content.SharedPreferences;
 import android.support.annotation.NonNull;
 
 public interface IEditActionSupport {
@@ -39,4 +40,8 @@ public interface IEditActionSupport {
     void disableUndoRedoFilter();
 
     void enableUndoRedoFilter();
+
+    void restoreEditHistory(SharedPreferences preferences);
+
+    void saveHistory(SharedPreferences preferences);
 }

lib-n-ide/src/main/java/com/duy/ide/editor/view/IEditActionSupport.java

@@ -18,6 +18,7 @@
 
 import android.content.Context;
 import android.content.DialogInterface;
+import android.content.SharedPreferences;
 import android.content.res.TypedArray;
 import android.graphics.Color;
 import android.os.Bundle;
@@ -151,9 +152,11 @@ public IEditAreaView getEditText() {
         return mEditText;
     }
 
-    public void setEditorView(IEditAreaView editorView) {
+    public void onCreate(IEditAreaView editorView) {
         mContext = editorView.getContext();
         mEditText = editorView;
+
+
         mOrientation = mContext.getResources().getConfiguration().orientation;
 
         TypedArray a = mContext.obtainStyledAttributes(new int[]{R.attr.findResultsKeyword});
@@ -178,9 +181,19 @@ public void setEditorView(IEditAreaView editorView) {
 
         mEditText.addTextChangedListener(this);
         onDocumentChanged();
+
+        SharedPreferences historyData = mContext.getSharedPreferences(
+                mDocument.getFile().getPath(), Context.MODE_PRIVATE);
+        mEditText.restoreEditHistory(historyData);
     }
 
     public void onDestroy() {
+        if (isChanged() && Preferences.getInstance(getContext()).isAutoSave()) {
+            saveInBackground();
+        }
+        SharedPreferences historyData = mContext.getSharedPreferences(
+                mDocument.getFile().getPath(), Context.MODE_PRIVATE);
+        mEditText.saveHistory(historyData);
         mEditText.removeTextChangedListener(mDocument);
         mEditText.removeTextChangedListener(this);
     }

lib-n-ide/src/main/java/com/jecelyin/editor/v2/editor/EditorDelegate.java

@@ -28,7 +28,6 @@
 import com.duy.ide.editor.editor.R;
 import com.duy.ide.editor.pager.EditorPageDescriptor;
 import com.duy.ide.editor.view.IEditAreaView;
-import com.jecelyin.editor.v2.Preferences;
 
 import java.io.File;
 
@@ -71,7 +70,7 @@ public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup c
             mEditorDelegate = new EditorDelegate(file, offset, encoding);
         }
         View view =  inflater.inflate(R.layout.fragment_editor, container, false);
-        mEditorDelegate.setEditorView((IEditAreaView) view.findViewById(R.id.edit_text));
+        mEditorDelegate.onCreate((IEditAreaView) view.findViewById(R.id.edit_text));
         return view;
     }
 
@@ -87,9 +86,7 @@ public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceStat
     @Override
     public void onDestroyView() {
         if (mEditorDelegate != null) {
-            if (mEditorDelegate.isChanged() && Preferences.getInstance(getContext()).isAutoSave()) {
-                mEditorDelegate.saveInBackground();
-            }
+            mEditorDelegate.onDestroy();
         }
         super.onDestroyView();
     }