Constructor injection for HistoryDatabase

app/src/main/java/acr/browser/lightning/app/AppComponent.java

@@ -1,5 +1,7 @@
 package acr.browser.lightning.app;
 
+import android.support.annotation.NonNull;
+
 import javax.inject.Singleton;
 
 import acr.browser.lightning.activity.BrowserActivity;
@@ -11,6 +13,7 @@ import acr.browser.lightning.browser.BrowserPresenter;
 import acr.browser.lightning.constant.BookmarkPage;
 import acr.browser.lightning.constant.HistoryPage;
 import acr.browser.lightning.constant.StartPage;
+import acr.browser.lightning.database.HistoryDatabase;
 import acr.browser.lightning.dialog.LightningDialogBuilder;
 import acr.browser.lightning.download.LightningDownloadListener;
 import acr.browser.lightning.fragment.BookmarkSettingsFragment;
@@ -74,4 +77,6 @@ public interface AppComponent {
 
     void inject(SuggestionsAdapter suggestionsAdapter);
 
+    @NonNull HistoryDatabase historyDatabase();
+
 }

app/src/main/java/acr/browser/lightning/database/HistoryDatabase.java

@@ -3,6 +3,7 @@
  */
 package acr.browser.lightning.database;
 
+import android.app.Application;
 import android.content.ContentValues;
 import android.database.Cursor;
 import android.database.DatabaseUtils;
@@ -15,11 +16,15 @@ import android.support.annotation.WorkerThread;
 import java.util.ArrayList;
 import java.util.List;
 
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
 import acr.browser.lightning.R;
 import acr.browser.lightning.app.BrowserApp;
 
+@Singleton
 @WorkerThread
-class HistoryDatabase extends SQLiteOpenHelper {
+public class HistoryDatabase extends SQLiteOpenHelper {
 
     // All Static variables
     // Database Version
@@ -39,22 +44,12 @@ class HistoryDatabase extends SQLiteOpenHelper {
 
     @Nullable private SQLiteDatabase mDatabase;
 
-    @Nullable private static HistoryDatabase sInstance;
-
-    private HistoryDatabase() {
-        super(BrowserApp.getApplication(), DATABASE_NAME, null, DATABASE_VERSION);
+    @Inject
+    HistoryDatabase(@NonNull Application application) {
+        super(application, DATABASE_NAME, null, DATABASE_VERSION);
         mDatabase = HistoryDatabase.this.getWritableDatabase();
     }
 
-    @NonNull
-    public synchronized static HistoryDatabase getInstance() {
-        if (sInstance == null) {
-            sInstance = new HistoryDatabase();
-        }
-
-        return sInstance;
-    }
-
     // Creating Tables
     @Override
     public void onCreate(@NonNull SQLiteDatabase db) {

app/src/main/java/acr/browser/lightning/database/HistoryModel.java

@@ -12,6 +12,8 @@ import com.anthonycr.bonsai.SingleSubscriber;
 
 import java.util.List;
 
+import acr.browser.lightning.app.BrowserApp;
+
 /**
  * A model class providing reactive bindings
  * with the underlying history database.
@@ -25,7 +27,9 @@ public final class HistoryModel {
         return Completable.create(new CompletableAction() {
             @Override
             public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
-                HistoryDatabase.getInstance().deleteHistory();
+                BrowserApp.getAppComponent()
+                    .historyDatabase()
+                    .deleteHistory();
 
                 subscriber.onComplete();
             }
@@ -37,7 +41,9 @@ public final class HistoryModel {
         return Completable.create(new CompletableAction() {
             @Override
             public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
-                HistoryDatabase.getInstance().deleteHistoryItem(url);
+                BrowserApp.getAppComponent()
+                    .historyDatabase()
+                    .deleteHistoryItem(url);
 
                 subscriber.onComplete();
             }
@@ -49,7 +55,12 @@ public final class HistoryModel {
         return Completable.create(new CompletableAction() {
             @Override
             public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
-                HistoryDatabase.getInstance().visitHistoryItem(url, title);
+                BrowserApp.getAppComponent()
+                    .historyDatabase()
+                    .visitHistoryItem(url, title);
+
+                System.out.println("SHIT: " + BrowserApp.getAppComponent().historyDatabase().toString());
+                System.out.println("SHIT: " + BrowserApp.getAppComponent().historyDatabase().toString());
 
                 subscriber.onComplete();
             }
@@ -61,7 +72,8 @@ public final class HistoryModel {
         return Single.create(new SingleAction<List<HistoryItem>>() {
             @Override
             public void onSubscribe(@NonNull SingleSubscriber<List<HistoryItem>> subscriber) {
-                List<HistoryItem> result = HistoryDatabase.getInstance().findItemsContaining(query);
+                List<HistoryItem> result = BrowserApp.getAppComponent()
+                    .historyDatabase().findItemsContaining(query);
 
                 subscriber.onItem(result);
                 subscriber.onComplete();
@@ -74,7 +86,8 @@ public final class HistoryModel {
         return Single.create(new SingleAction<List<HistoryItem>>() {
             @Override
             public void onSubscribe(@NonNull SingleSubscriber<List<HistoryItem>> subscriber) {
-                List<HistoryItem> result = HistoryDatabase.getInstance().getLastHundredItems();
+                List<HistoryItem> result = BrowserApp.getAppComponent()
+                    .historyDatabase().getLastHundredItems();
 
                 subscriber.onItem(result);
                 subscriber.onComplete();