Switching HistoryDatabase to implement reactive interface

app/src/main/java/acr/browser/lightning/activity/BrowserActivity.java

@@ -185,6 +185,8 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
     // The singleton BookmarkManager
     @Inject BookmarkModel mBookmarkManager;
 
+    @Inject HistoryModel mHistoryModel;
+
     @Inject LightningDialogBuilder mBookmarksDialogBuilder;
 
     private TabsManager mTabsManager;
@@ -1250,7 +1252,7 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
             Log.d(TAG, "Cache Cleared");
         }
         if (mPreferences.getClearHistoryExitEnabled() && !isIncognito()) {
-            WebUtils.clearHistory(this);
+            WebUtils.clearHistory(this, mHistoryModel);
             Log.d(TAG, "History Cleared");
         }
         if (mPreferences.getClearCookiesExitEnabled() && !isIncognito()) {
@@ -1584,7 +1586,7 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
             return;
         }
 
-        HistoryModel.visitHistoryItem(url, title)
+        mHistoryModel.visitHistoryItem(url, title)
             .subscribeOn(Schedulers.io())
             .subscribe(new CompletableOnSubscribe() {
                 @Override

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

@@ -12,6 +12,8 @@ import acr.browser.lightning.database.bookmark.BookmarkDatabase;
 import acr.browser.lightning.database.bookmark.BookmarkModel;
 import acr.browser.lightning.database.downloads.DownloadsDatabase;
 import acr.browser.lightning.database.downloads.DownloadsModel;
+import acr.browser.lightning.database.history.HistoryDatabase;
+import acr.browser.lightning.database.history.HistoryModel;
 import dagger.Module;
 import dagger.Provides;
 
@@ -36,17 +38,24 @@ public class AppModule {
     @NonNull
     @Provides
     @Singleton
-    public BookmarkModel provideBookmarkMode() {
+    public BookmarkModel provideBookmarkModel() {
         return new BookmarkDatabase(mApp);
     }
 
     @NonNull
     @Provides
     @Singleton
-    public DownloadsModel provideDownloadsMode() {
+    public DownloadsModel provideDownloadsModel() {
         return new DownloadsDatabase(mApp);
     }
 
+    @NonNull
+    @Provides
+    @Singleton
+    public HistoryModel providesHistoryModel() {
+        return new HistoryDatabase(mApp);
+    }
+
     @NonNull
     @Provides
     @Singleton

app/src/main/java/acr/browser/lightning/constant/HistoryPage.java

@@ -64,6 +64,7 @@ public class HistoryPage {
     @NonNull private final String mTitle;
 
     @Inject Application mApp;
+    @Inject HistoryModel mHistoryModel;
 
     public HistoryPage() {
         BrowserApp.getAppComponent().inject(this);
@@ -77,7 +78,7 @@ public class HistoryPage {
             public void onSubscribe(@NonNull final SingleSubscriber<String> subscriber) {
                 final StringBuilder historyBuilder = new StringBuilder(HEADING_1 + mTitle + HEADING_2);
 
-                HistoryModel.lastHundredVisitedHistoryItems()
+                mHistoryModel.lastHundredVisitedHistoryItems()
                     .subscribe(new SingleOnSubscribe<List<HistoryItem>>() {
                         @Override
                         public void onItem(@Nullable List<HistoryItem> item) {

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

@@ -13,6 +13,13 @@ import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.annotation.WorkerThread;
 
+import com.anthonycr.bonsai.Completable;
+import com.anthonycr.bonsai.CompletableAction;
+import com.anthonycr.bonsai.CompletableSubscriber;
+import com.anthonycr.bonsai.Single;
+import com.anthonycr.bonsai.SingleAction;
+import com.anthonycr.bonsai.SingleSubscriber;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -22,9 +29,15 @@ import javax.inject.Singleton;
 import acr.browser.lightning.R;
 import acr.browser.lightning.database.HistoryItem;
 
+
+/**
+ * The disk backed download database.
+ * See {@link HistoryModel} for method
+ * documentation.
+ */
 @Singleton
 @WorkerThread
-public class HistoryDatabase extends SQLiteOpenHelper {
+public class HistoryDatabase extends SQLiteOpenHelper implements HistoryModel {
 
     // All Static variables
     // Database Version
@@ -45,9 +58,8 @@ public class HistoryDatabase extends SQLiteOpenHelper {
     @Nullable private SQLiteDatabase mDatabase;
 
     @Inject
-    HistoryDatabase(@NonNull Application application) {
+    public HistoryDatabase(@NonNull Application application) {
         super(application, DATABASE_NAME, null, DATABASE_VERSION);
-        mDatabase = HistoryDatabase.this.getWritableDatabase();
     }
 
     // Creating Tables
@@ -87,19 +99,39 @@ public class HistoryDatabase extends SQLiteOpenHelper {
         return mDatabase;
     }
 
-    @WorkerThread
-    synchronized void deleteHistory() {
+    @NonNull
+    @Override
+    public Completable deleteHistory() {
+        return Completable.create(new CompletableAction() {
+            @Override
+            public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
                 lazyDatabase().delete(TABLE_HISTORY, null, null);
                 lazyDatabase().close();
+
+                subscriber.onComplete();
+            }
+        });
     }
 
-    @WorkerThread
-    synchronized void deleteHistoryItem(@NonNull String url) {
+    @NonNull
+    @Override
+    public Completable deleteHistoryItem(@NonNull final String url) {
+        return Completable.create(new CompletableAction() {
+            @Override
+            public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
                 lazyDatabase().delete(TABLE_HISTORY, KEY_URL + " = ?", new String[]{url});
+
+                subscriber.onComplete();
+            }
+        });
     }
 
-    @WorkerThread
-    synchronized void visitHistoryItem(@NonNull String url, @Nullable String title) {
+    @NonNull
+    @Override
+    public Completable visitHistoryItem(@NonNull final String url, @Nullable final String title) {
+        return Completable.create(new CompletableAction() {
+            @Override
+            public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
                 ContentValues values = new ContentValues();
                 values.put(KEY_TITLE, title == null ? "" : title);
                 values.put(KEY_TIME_VISITED, System.currentTimeMillis());
@@ -115,40 +147,18 @@ public class HistoryDatabase extends SQLiteOpenHelper {
 
                 cursor.close();
             }
-
-    @WorkerThread
-    private synchronized void addHistoryItem(@NonNull HistoryItem item) {
-        ContentValues values = new ContentValues();
-        values.put(KEY_URL, item.getUrl());
-        values.put(KEY_TITLE, item.getTitle());
-        values.put(KEY_TIME_VISITED, System.currentTimeMillis());
-        lazyDatabase().insert(TABLE_HISTORY, null, values);
-    }
-
-    @WorkerThread
-    @Nullable
-    synchronized String getHistoryItem(@NonNull String url) {
-        Cursor cursor = lazyDatabase().query(TABLE_HISTORY, new String[]{KEY_ID, KEY_URL, KEY_TITLE},
-            KEY_URL + " = ?", new String[]{url}, null, null, null, "1");
-        String m = null;
-        if (cursor != null) {
-            cursor.moveToFirst();
-            m = cursor.getString(0);
-
-            cursor.close();
-        }
-        return m;
+        });
     }
 
-    @WorkerThread
     @NonNull
-    synchronized List<HistoryItem> findItemsContaining(@Nullable String search) {
+    @Override
+    public Single<List<HistoryItem>> findHistoryItemsContaining(@NonNull final String query) {
+        return Single.create(new SingleAction<List<HistoryItem>>() {
+            @Override
+            public void onSubscribe(@NonNull SingleSubscriber<List<HistoryItem>> subscriber) {
                 List<HistoryItem> itemList = new ArrayList<>(5);
-        if (search == null) {
-            return itemList;
-        }
 
-        search = '%' + search + '%';
+                String search = '%' + query + '%';
 
                 Cursor cursor = lazyDatabase().query(TABLE_HISTORY, null, KEY_TITLE + " LIKE ? OR " + KEY_URL + " LIKE ?",
                     new String[]{search, search}, null, null, KEY_TIME_VISITED + " DESC", "5");
@@ -159,12 +169,18 @@ public class HistoryDatabase extends SQLiteOpenHelper {
 
                 cursor.close();
 
-        return itemList;
+                subscriber.onItem(itemList);
+                subscriber.onComplete();
+            }
+        });
     }
 
-    @WorkerThread
     @NonNull
-    synchronized List<HistoryItem> getLastHundredItems() {
+    @Override
+    public Single<List<HistoryItem>> lastHundredVisitedHistoryItems() {
+        return Single.create(new SingleAction<List<HistoryItem>>() {
+            @Override
+            public void onSubscribe(@NonNull SingleSubscriber<List<HistoryItem>> subscriber) {
                 List<HistoryItem> itemList = new ArrayList<>(100);
                 Cursor cursor = lazyDatabase().query(TABLE_HISTORY, null, null, null, null, null, KEY_TIME_VISITED + " DESC", "100");
 
@@ -174,7 +190,34 @@ public class HistoryDatabase extends SQLiteOpenHelper {
 
                 cursor.close();
 
-        return itemList;
+                subscriber.onItem(itemList);
+                subscriber.onComplete();
+            }
+        });
+    }
+
+    @WorkerThread
+    private synchronized void addHistoryItem(@NonNull HistoryItem item) {
+        ContentValues values = new ContentValues();
+        values.put(KEY_URL, item.getUrl());
+        values.put(KEY_TITLE, item.getTitle());
+        values.put(KEY_TIME_VISITED, System.currentTimeMillis());
+        lazyDatabase().insert(TABLE_HISTORY, null, values);
+    }
+
+    @WorkerThread
+    @Nullable
+    synchronized String getHistoryItem(@NonNull String url) {
+        Cursor cursor = lazyDatabase().query(TABLE_HISTORY, new String[]{KEY_ID, KEY_URL, KEY_TITLE},
+            KEY_URL + " = ?", new String[]{url}, null, null, null, "1");
+        String m = null;
+        if (cursor != null) {
+            cursor.moveToFirst();
+            m = cursor.getString(0);
+
+            cursor.close();
+        }
+        return m;
     }
 
     @WorkerThread

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

@@ -4,24 +4,19 @@ import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 
 import com.anthonycr.bonsai.Completable;
-import com.anthonycr.bonsai.CompletableAction;
-import com.anthonycr.bonsai.CompletableSubscriber;
 import com.anthonycr.bonsai.Single;
-import com.anthonycr.bonsai.SingleAction;
-import com.anthonycr.bonsai.SingleSubscriber;
 
 import java.util.List;
 
-import acr.browser.lightning.app.BrowserApp;
 import acr.browser.lightning.database.HistoryItem;
 
 /**
- * A model class providing reactive bindings
- * with the underlying history database.
+ * An interface that should be used to communicate
+ * with the history database.
+ * <p>
+ * Created by anthonycr on 6/9/17.
  */
-public final class HistoryModel {
-
-    private HistoryModel() {}
+public interface HistoryModel {
 
     /**
      * An observable that deletes browser history.
@@ -29,18 +24,7 @@ public final class HistoryModel {
      * @return a valid observable.
      */
     @NonNull
-    public static Completable deleteHistory() {
-        return Completable.create(new CompletableAction() {
-            @Override
-            public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
-                BrowserApp.getAppComponent()
-                    .historyDatabase()
-                    .deleteHistory();
-
-                subscriber.onComplete();
-            }
-        });
-    }
+    Completable deleteHistory();
 
     /**
      * An observable that deletes the history
@@ -50,18 +34,7 @@ public final class HistoryModel {
      * @return a valid observable.
      */
     @NonNull
-    public static Completable deleteHistoryItem(@NonNull final String url) {
-        return Completable.create(new CompletableAction() {
-            @Override
-            public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
-                BrowserApp.getAppComponent()
-                    .historyDatabase()
-                    .deleteHistoryItem(url);
-
-                subscriber.onComplete();
-            }
-        });
-    }
+    Completable deleteHistoryItem(@NonNull final String url);
 
     /**
      * An observable that visits the URL by
@@ -74,18 +47,7 @@ public final class HistoryModel {
      * @return a valid observable.
      */
     @NonNull
-    public static Completable visitHistoryItem(@NonNull final String url, @Nullable final String title) {
-        return Completable.create(new CompletableAction() {
-            @Override
-            public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
-                BrowserApp.getAppComponent()
-                    .historyDatabase()
-                    .visitHistoryItem(url, title);
-
-                subscriber.onComplete();
-            }
-        });
-    }
+    Completable visitHistoryItem(@NonNull final String url, @Nullable final String title);
 
     /**
      * An observable that finds all history items
@@ -100,18 +62,7 @@ public final class HistoryModel {
      * a list of history items.
      */
     @NonNull
-    public static Single<List<HistoryItem>> findHistoryItemsContaining(@NonNull final String query) {
-        return Single.create(new SingleAction<List<HistoryItem>>() {
-            @Override
-            public void onSubscribe(@NonNull SingleSubscriber<List<HistoryItem>> subscriber) {
-                List<HistoryItem> result = BrowserApp.getAppComponent()
-                    .historyDatabase().findItemsContaining(query);
-
-                subscriber.onItem(result);
-                subscriber.onComplete();
-            }
-        });
-    }
+    Single<List<HistoryItem>> findHistoryItemsContaining(@NonNull final String query);
 
     /**
      * An observable that emits a list of the
@@ -121,16 +72,5 @@ public final class HistoryModel {
      * a list of history items.
      */
     @NonNull
-    public static Single<List<HistoryItem>> lastHundredVisitedHistoryItems() {
-        return Single.create(new SingleAction<List<HistoryItem>>() {
-            @Override
-            public void onSubscribe(@NonNull SingleSubscriber<List<HistoryItem>> subscriber) {
-                List<HistoryItem> result = BrowserApp.getAppComponent()
-                    .historyDatabase().getLastHundredItems();
-
-                subscriber.onItem(result);
-                subscriber.onComplete();
-            }
-        });
-    }
+    Single<List<HistoryItem>> lastHundredVisitedHistoryItems();
 }

app/src/main/java/acr/browser/lightning/dialog/LightningDialogBuilder.java

@@ -55,6 +55,7 @@ public class LightningDialogBuilder {
 
     @Inject BookmarkModel mBookmarkManager;
     @Inject DownloadsModel mDownloadsModel;
+    @Inject HistoryModel mHistoryModel;
     @Inject PreferenceManager mPreferenceManager;
 
     @Inject
@@ -332,7 +333,7 @@ public class LightningDialogBuilder {
             new BrowserDialog.Item(R.string.dialog_remove_from_history) {
                 @Override
                 public void onClick() {
-                    HistoryModel.deleteHistoryItem(url)
+                    mHistoryModel.deleteHistoryItem(url)
                         .subscribeOn(Schedulers.io())
                         .observeOn(Schedulers.main())
                         .subscribe(new CompletableOnSubscribe() {

app/src/main/java/acr/browser/lightning/fragment/PrivacySettingsFragment.java

@@ -20,8 +20,11 @@ import com.anthonycr.bonsai.CompletableOnSubscribe;
 import com.anthonycr.bonsai.CompletableSubscriber;
 import com.anthonycr.bonsai.Schedulers;
 
+import javax.inject.Inject;
+
 import acr.browser.lightning.R;
 import acr.browser.lightning.app.BrowserApp;
+import acr.browser.lightning.database.history.HistoryModel;
 import acr.browser.lightning.dialog.BrowserDialog;
 import acr.browser.lightning.utils.Utils;
 import acr.browser.lightning.utils.WebUtils;
@@ -45,6 +48,8 @@ public class PrivacySettingsFragment extends LightningPreferenceFragment impleme
 
     private Activity mActivity;
 
+    @Inject HistoryModel mHistoryModel;
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -187,7 +192,8 @@ public class PrivacySettingsFragment extends LightningPreferenceFragment impleme
             public void onSubscribe(@NonNull CompletableSubscriber subscriber) {
                 Activity activity = getActivity();
                 if (activity != null) {
-                    WebUtils.clearHistory(activity);
+                    // TODO: 6/9/17 clearHistory is not synchronous
+                    WebUtils.clearHistory(activity, mHistoryModel);
                     subscriber.onComplete();
                 }
                 subscriber.onError(new RuntimeException("Activity was null in clearHistory"));

app/src/main/java/acr/browser/lightning/search/SuggestionsAdapter.java

@@ -67,6 +67,7 @@ public class SuggestionsAdapter extends BaseAdapter implements Filterable {
 
     @Inject BookmarkModel mBookmarkManager;
     @Inject PreferenceManager mPreferenceManager;
+    @Inject HistoryModel mHistoryModel;
     @Inject Application mApplication;
 
     private final List<HistoryItem> mAllBookmarks = new ArrayList<>(5);
@@ -197,7 +198,7 @@ public class SuggestionsAdapter extends BaseAdapter implements Filterable {
     @NonNull
     @Override
     public Filter getFilter() {
-        return new SearchFilter(this);
+        return new SearchFilter(this, mHistoryModel);
     }
 
     private synchronized void publishResults(@NonNull List<HistoryItem> list) {
@@ -318,9 +319,12 @@ public class SuggestionsAdapter extends BaseAdapter implements Filterable {
     private static class SearchFilter extends Filter {
 
         @NonNull private final SuggestionsAdapter mSuggestionsAdapter;
+        @NonNull private final HistoryModel mHistoryModel;
 
-        SearchFilter(@NonNull SuggestionsAdapter suggestionsAdapter) {
+        SearchFilter(@NonNull SuggestionsAdapter suggestionsAdapter,
+                     @NonNull HistoryModel historyModel) {
             mSuggestionsAdapter = suggestionsAdapter;
+            mHistoryModel = historyModel;
         }
 
         @NonNull
@@ -355,7 +359,7 @@ public class SuggestionsAdapter extends BaseAdapter implements Filterable {
                     }
                 });
 
-            HistoryModel.findHistoryItemsContaining(query)
+            mHistoryModel.findHistoryItemsContaining(query)
                 .subscribeOn(Schedulers.io())
                 .observeOn(Schedulers.main())
                 .subscribe(new SingleOnSubscribe<List<HistoryItem>>() {

app/src/main/java/acr/browser/lightning/utils/WebUtils.java

@@ -36,8 +36,8 @@ public class WebUtils {
         WebStorage.getInstance().deleteAllData();
     }
 
-    public static void clearHistory(@NonNull Context context) {
-        HistoryModel.deleteHistory()
+    public static void clearHistory(@NonNull Context context, @NonNull HistoryModel historyModel) {
+        historyModel.deleteHistory()
                 .subscribeOn(Schedulers.io())
                 .subscribe();
         WebViewDatabase m = WebViewDatabase.getInstance(context);