Undo redo support, fast scroll

Author: tranleduy2000

app/src/main/res/layout/list_item_theme.xml

@@ -29,12 +29,12 @@
 
     </LinearLayout>
 
-    <com.duy.ide.editor.view.HighlightEditorView
+    <com.duy.ide.editor.view.EditActionSupportEditor
         android:id="@+id/editor_view"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:typeface="monospace">
 
-    </com.duy.ide.editor.view.HighlightEditorView>
+    </com.duy.ide.editor.view.EditActionSupportEditor>
 </LinearLayout>
 

libeditor/src/main/java/com/duy/ide/editor/content/ClipboardCompat.java

@@ -0,0 +1,56 @@
+/*
+ *  Copyright (C)  2018  Duy Tran Le
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.duy.ide.editor.content;
+
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+
+public class ClipboardCompat {
+    @NonNull
+    private Context mContext;
+    @Nullable
+    private ClipboardManager mClipboardManager;
+
+    public ClipboardCompat(@NonNull Context context) {
+        mContext = context;
+        mClipboardManager = (ClipboardManager) mContext.getSystemService(Context.CLIPBOARD_SERVICE);
+    }
+
+    @Nullable
+    public CharSequence getClipboard() {
+        if (mClipboardManager == null) {
+            return null;
+        }
+        // Examines the item on the clipboard. If getText() does not return null,
+        // the clip item contains the
+        // text. Assumes that this application can only handle one item at a time.
+        ClipData.Item item = mClipboardManager.getPrimaryClip().getItemAt(0);
+        // Gets the clipboard as text.
+        return item.getText();
+    }
+
+    public void setClipboard(@NonNull CharSequence content) {
+        ClipData clipData = ClipData.newPlainText("", content);
+        if (mClipboardManager != null) {
+            mClipboardManager.setPrimaryClip(clipData);
+        }
+    }
+}

libeditor/src/main/java/com/duy/ide/editor/content/IUndoManager.java

@@ -0,0 +1,31 @@
+/*
+ *  Copyright (C)  2018  Duy Tran Le
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.duy.ide.editor.content;
+
+/**
+ * Created by Duy on 26-Apr-18.
+ */
+public interface IUndoManager {
+    boolean canRedo();
+
+    void undo();
+
+    void redo();
+
+    boolean canUndo();
+}

libeditor/src/main/java/com/duy/ide/editor/content/UndoManager.java

@@ -0,0 +1,52 @@
+/*
+ *  Copyright (C)  2018  Duy Tran Le
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.duy.ide.editor.content;
+
+import com.duy.ide.editor.view.IEditAreaView;
+
+public class UndoManager implements IUndoManager {
+    private UndoRedoHelper mUndoRedoHelper;
+
+    public UndoManager(IEditAreaView editText) {
+        mUndoRedoHelper = new UndoRedoHelper(editText);
+    }
+
+    @Override
+    public boolean canRedo() {
+        return mUndoRedoHelper.canRedo();
+    }
+
+    @Override
+    public void undo() {
+        if (canUndo()) {
+            mUndoRedoHelper.undo();
+        }
+    }
+
+    @Override
+    public void redo() {
+        if (canUndo()) {
+            mUndoRedoHelper.redo();
+        }
+    }
+
+    @Override
+    public boolean canUndo() {
+        return mUndoRedoHelper.canRedo();
+    }
+}

libeditor/src/main/java/com/duy/ide/editor/content/UndoRedoHelper.java

@@ -5,14 +5,14 @@
 
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.Editor;
-import com.duy.ide.editor.core.content.IUndoManager;
-import com.duy.ide.editor.core.widget.BaseEditorView;
 import android.text.Editable;
 import android.text.Selection;
 import android.text.TextUtils;
 import android.text.TextWatcher;
 import android.text.style.UnderlineSpan;
 
+import com.duy.ide.editor.view.IEditAreaView;
+
 import java.util.LinkedList;
 
 public class UndoRedoHelper implements IUndoManager {
@@ -22,10 +22,10 @@ public class UndoRedoHelper implements IUndoManager {
     private EditHistory mEditHistory;
 
     private EditTextChangeListener mChangeListener;
-    private BaseEditorView mTextView;
+    private IEditAreaView mTextView;
 
 
-    public UndoRedoHelper(BaseEditorView textView) {
+    public UndoRedoHelper(IEditAreaView textView) {
         mTextView = textView;
         mEditHistory = new EditHistory();
         mChangeListener = new EditTextChangeListener();

libeditor/src/main/java/com/duy/ide/editor/content/UndoRedoManager.java

@@ -16,6 +16,7 @@
 
 package com.duy.ide.editor.core.content;
 
+import com.duy.ide.editor.content.IUndoManager;
 import com.duy.ide.editor.core.text.TextUtils;
 import android.os.Parcel;
 import android.os.Parcelable;

libeditor/src/main/java/com/duy/ide/editor/core/content/IUndoManager.java

@@ -678,7 +678,7 @@ protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) {
         if (mFastScroller != null && getLayout() != null) {
             int h = getBottom() - getTop() - getExtendedPaddingBottom() - getExtendedPaddingTop();
             int h2 = getLayout().getHeight();
-            mFastScroller.onScroll(this, vert, h, h2);
+            mFastScroller.onScroll(vert, h, h2);
         }
     }
 

libeditor/src/main/java/com/duy/ide/editor/core/content/UndoManager.java

@@ -18,15 +18,15 @@
 
 package com.duy.ide.editor.core.widget;
 
-import com.duy.ide.editor.core.text.SpannableStringBuilder;
 import android.text.Editable;
 
+import com.duy.ide.editor.core.text.SpannableStringBuilder;
 import com.duy.ide.editor.view.IEditAreaView;
 
 /**
  * @author Jecelyin Peng <jecelyin@gmail.com>
  */
-class EditorHelper {
+public class EditorHelper {
     private final IEditAreaView editAreaView;
 
     public EditorHelper(IEditAreaView editAreaView) {