feat(editor): auto restore text after screen orientation changed

app/src/main/java/com/stardust/scriptdroid/external/tasker/TaskerScriptEditActivity.java

@@ -48,13 +48,8 @@ public class TaskerScriptEditActivity extends BaseActivity {
 
     @Override
     public void finish() {
-        mEditorView.getEditor().getText().subscribe(new Consumer<String>() {
+        setResult(RESULT_OK, new Intent().putExtra(EXTRA_CONTENT, mEditorView.getEditor().getText()));
-            @Override
-            public void accept(@NonNull String s) throws Exception {
-                setResult(RESULT_OK, new Intent().putExtra(EXTRA_CONTENT, s));
         TaskerScriptEditActivity.super.finish();
     }
-        });
-    }
 
 }

app/src/main/java/com/stardust/scriptdroid/ui/edit/EditActivity.java

@@ -2,15 +2,16 @@ package com.stardust.scriptdroid.ui.edit;
 
 import android.content.Context;
 import android.content.Intent;
+import android.os.Bundle;
 import android.support.annotation.NonNull;
 import android.view.ActionMode;
 import android.view.Menu;
 import android.view.MenuItem;
-import android.widget.Toolbar;
 
 import com.stardust.app.OnActivityResultDelegate;
+import com.stardust.pio.PFiles;
 import com.stardust.scriptdroid.R;
-import com.stardust.scriptdroid.model.script.ScriptFile;
+import com.stardust.scriptdroid.storage.file.TmpScriptFiles;
 import com.stardust.scriptdroid.ui.BaseActivity;
 import com.stardust.theme.dialog.ThemeColorMaterialDialogBuilder;
 
@@ -18,6 +19,13 @@ import org.androidannotations.annotations.AfterViews;
 import org.androidannotations.annotations.EActivity;
 import org.androidannotations.annotations.ViewById;
 
+import java.io.File;
+import java.io.IOException;
+
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.schedulers.Schedulers;
+
 import static com.stardust.scriptdroid.ui.edit.EditorView.EXTRA_CONTENT;
 import static com.stardust.scriptdroid.ui.edit.EditorView.EXTRA_NAME;
 import static com.stardust.scriptdroid.ui.edit.EditorView.EXTRA_PATH;
@@ -32,7 +40,7 @@ public class EditActivity extends BaseActivity implements OnActivityResultDelega
     private OnActivityResultDelegate.Mediator mMediator = new OnActivityResultDelegate.Mediator();
 
     @ViewById(R.id.editor_view)
-    EditorView mEditor;
+    EditorView mEditorView;
 
 
     private EditorMenu mEditorMenu;
@@ -58,13 +66,13 @@ public class EditActivity extends BaseActivity implements OnActivityResultDelega
 
     @AfterViews
     void setUpViews() {
-        mEditor.handleIntent(getIntent());
+        mEditorView.handleIntent(getIntent());
-        mEditorMenu = new EditorMenu(mEditor);
+        mEditorMenu = new EditorMenu(mEditorView);
         setUpToolbar();
     }
 
     private void setUpToolbar() {
-        BaseActivity.setToolbarAsBack(this, R.id.toolbar, mEditor.getName());
+        BaseActivity.setToolbarAsBack(this, R.id.toolbar, mEditorView.getName());
     }
 
     @Override
@@ -90,14 +98,14 @@ public class EditActivity extends BaseActivity implements OnActivityResultDelega
 
     @Override
     public void onBackPressed() {
-        if (!mEditor.onBackPressed()) {
+        if (!mEditorView.onBackPressed()) {
             super.onBackPressed();
         }
     }
 
     @Override
     public void finish() {
-        if (mEditor.isTextChanged()) {
+        if (mEditorView.isTextChanged()) {
             showExitConfirmDialog();
             return;
         }
@@ -112,7 +120,7 @@ public class EditActivity extends BaseActivity implements OnActivityResultDelega
                 .negativeText(R.string.text_save_and_exit)
                 .neutralText(R.string.text_exit_directly)
                 .onNegative((dialog, which) -> {
-                    mEditor.saveFile();
+                    mEditorView.saveFile();
                     EditActivity.super.finish();
                 })
                 .onNeutral((dialog, which) -> EditActivity.super.finish())
@@ -134,4 +142,54 @@ public class EditActivity extends BaseActivity implements OnActivityResultDelega
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         mMediator.onActivityResult(requestCode, resultCode, data);
     }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        if (!mEditorView.isTextChanged()) {
+            return;
+        }
+        String text = mEditorView.getEditor().getText();
+        if (text.length() < 256 * 1024) {
+            outState.putString("text", text);
+        } else {
+            File tmp = saveToTmpFile(text);
+            if (tmp != null) {
+                outState.putString("path", tmp.getPath());
+            }
+
+        }
+    }
+
+    private File saveToTmpFile(String text) {
+        try {
+            File tmp = TmpScriptFiles.create(this);
+            Observable.just(text)
+                    .observeOn(Schedulers.io())
+                    .subscribe(t -> PFiles.write(tmp, t));
+            return tmp;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    @Override
+    protected void onRestoreInstanceState(Bundle savedInstanceState) {
+        super.onRestoreInstanceState(savedInstanceState);
+        String text = savedInstanceState.getString("text");
+        if (text != null) {
+            mEditorView.setRestoredText(text);
+            return;
+        }
+        String path = savedInstanceState.getString("path");
+        if (path != null) {
+            Observable.just(path)
+                    .observeOn(Schedulers.io())
+                    .map(PFiles::read)
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .subscribe(t -> mEditorView.getEditor().setText(t), Throwable::printStackTrace);
+        }
+    }
+
 }

app/src/main/java/com/stardust/scriptdroid/ui/edit/EditorMenu.java

@@ -156,7 +156,7 @@ public class EditorMenu {
     }
 
     private void showInfo() {
-        Observable.zip(mEditor.getText(), mEditor.getLineCount(), (text, lineCount) -> {
+        Observable.zip(Observable.just(mEditor.getText()), mEditor.getLineCount(), (text, lineCount) -> {
             String size = PFiles.getHumanReadableSize(text.length());
             return String.format(Locale.getDefault(), mContext.getString(R.string.format_editor_info),
                     text.length(), lineCount, size);
@@ -198,14 +198,9 @@ public class EditorMenu {
     }
 
     private void copyAll() {
-        mEditor.getText().observeOn(AndroidSchedulers.mainThread()).subscribe(new Consumer<String>() {
+        ClipboardUtil.setClip(mContext, mEditor.getText());
-            @Override
-            public void accept(@NonNull String s) throws Exception {
-                ClipboardUtil.setClip(mContext, s);
         Snackbar.make(mEditorView, R.string.text_already_copy_to_clip, Snackbar.LENGTH_SHORT).show();
     }
-        });
-    }
 
 
     private void showLog() {

app/src/main/java/com/stardust/scriptdroid/ui/edit/EditorView.java

@@ -126,6 +126,7 @@ public class EditorView extends FrameLayout implements CodeCompletionBar.OnHintC
             }
         }
     };
+    private String mRestoredText;
 
     public EditorView(Context context) {
         super(context);
@@ -178,6 +179,11 @@ public class EditorView extends FrameLayout implements CodeCompletionBar.OnHintC
 
     }
 
+    public void setRestoredText(String text) {
+        mRestoredText = text;
+        mEditor.setText(text);
+    }
+
     private void handleText(Intent intent) {
         String path = intent.getStringExtra(EXTRA_PATH);
         String content = intent.getStringExtra(EXTRA_CONTENT);
@@ -209,6 +215,11 @@ public class EditorView extends FrameLayout implements CodeCompletionBar.OnHintC
     }
 
     private void setInitialText(String text) {
+        if (mRestoredText != null) {
+            mEditor.setText(mRestoredText);
+            mRestoredText = null;
+            return;
+        }
         mEditor.setInitialText(text);
     }
 
@@ -313,7 +324,7 @@ public class EditorView extends FrameLayout implements CodeCompletionBar.OnHintC
     }
 
     public Observable<String> save() {
-        return mEditor.getText()
+        return Observable.just(mEditor.getText())
                 .observeOn(Schedulers.io())
                 .doOnNext(s -> PFiles.write(mFile, s))
                 .observeOn(AndroidSchedulers.mainThread())
@@ -499,4 +510,6 @@ public class EditorView extends FrameLayout implements CodeCompletionBar.OnHintC
             showManual(property.getUrl(), property.getKey());
         }
     }
+
+
 }

app/src/main/java/com/stardust/scriptdroid/ui/edit/editor/CodeEditText.java

@@ -22,6 +22,7 @@ import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.Typeface;
+import android.os.Parcelable;
 import android.support.v7.widget.AppCompatEditText;
 import android.text.Editable;
 import android.text.Layout;
@@ -352,4 +353,5 @@ public class CodeEditText extends AppCompatEditText {
         }
         super.setSelection(index);
     }
+
 }

app/src/main/java/com/stardust/scriptdroid/ui/edit/editor/CodeEditor.java

@@ -311,8 +311,8 @@ public class CodeEditor extends HVScrollView {
         mCodeEditText.setSelection(mCodeEditText.getSelectionStart() + dCh);
     }
 
-    public Observable<String> getText() {
+    public String getText() {
-        return Observable.just(mCodeEditText.getText().toString());
+        return mCodeEditText.getText().toString();
     }
 
     public Observable<String> getSelection() {