Widgets

.gitignore

@@ -1,3 +1,7 @@
+# IntelliJ
+*.iml
+.idea/
+
 # built application files
 *.apk
 *.ap_

app/src/main/AndroidManifest.xml

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
    - FreeOTP
    -
    - Authors: Nathaniel McCallum <[email protected]>
@@ -22,71 +21,89 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.fedorahosted.freeotp"
     android:versionCode="17"
-    android:versionName="1.5" >
+    android:versionName="1.5">
 
     <uses-sdk
         android:minSdkVersion="23"
         android:targetSdkVersion="26" />
 
     <supports-screens
-        android:smallScreens="true"
-        android:normalScreens="true"
+        android:anyDensity="true"
         android:largeScreens="true"
-        android:xlargeScreens="true"
+        android:normalScreens="true"
         android:resizeable="true"
-        android:anyDensity="true" />
+        android:smallScreens="true"
+        android:xlargeScreens="true" />
 
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.INTERNET" />
-    <uses-feature android:name="android.hardware.camera" android:required="false" />
-    <uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />
+
+    <uses-feature
+        android:name="android.hardware.camera"
+        android:required="false" />
+    <uses-feature
+        android:name="android.hardware.camera.autofocus"
+        android:required="false" />
 
     <application
         android:allowBackup="false"
         android:icon="@drawable/ic_freeotp"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme" >
+        android:theme="@style/AppTheme">
 
         <activity
             android:name=".AboutActivity"
-            android:theme="@android:style/Theme.Holo.Light.Dialog.NoActionBar"
-            />
+            android:theme="@android:style/Theme.Holo.Light.Dialog.NoActionBar" />
 
         <activity
             android:name=".add.ScanActivity"
-            android:theme="@android:style/Theme.Holo.NoActionBar.Fullscreen"
-            />
+            android:theme="@android:style/Theme.Holo.NoActionBar.Fullscreen" />
 
         <activity
             android:name=".edit.DeleteActivity"
             android:label="@string/delete_question"
-            android:theme="@android:style/Theme.Holo.Light.Dialog"
-            />
+            android:theme="@android:style/Theme.Holo.Light.Dialog" />
 
         <activity
             android:name=".edit.EditActivity"
             android:theme="@android:style/Theme.Holo.Light.Dialog.NoActionBar"
-            android:windowSoftInputMode="stateVisible"
-            />
+            android:windowSoftInputMode="stateVisible" />
 
         <activity
             android:name=".MainActivity"
-            android:label="@string/app_name"
             android:clearTaskOnLaunch="true"
-            android:launchMode="singleTask"
             android:configChanges="orientation|screenSize"
-            >
+            android:label="@string/app_name"
+            android:launchMode="singleTask">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
+
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
-                <data android:scheme="otpauth" android:host="totp" />
-                <data android:scheme="otpauth" android:host="hotp" />
+
+                <data
+                    android:host="totp"
+                    android:scheme="otpauth" />
+                <data
+                    android:host="hotp"
+                    android:scheme="otpauth" />
             </intent-filter>
         </activity>
+
+        <receiver android:name="org.fedorahosted.freeotp.widget.OtpListWidgetProvider">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+            </intent-filter>
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/widget_info" />
+        </receiver>
+        <service
+            android:name="org.fedorahosted.freeotp.widget.OtpListWidgetService"
+            android:permission="android.permission.BIND_REMOTEVIEWS" />
     </application>
 </manifest>

app/src/main/java/org/fedorahosted/freeotp/ClipboardManagerUtil.java

@@ -0,0 +1,42 @@
+/*
+ * FreeOTP
+ *
+ * Authors: Nathaniel McCallum <[email protected]>
+ *
+ * Copyright (C) 2013  Nathaniel McCallum, Red Hat
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.fedorahosted.freeotp;
+
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.widget.Toast;
+
+public class ClipboardManagerUtil {
+    private ClipboardManagerUtil() {
+        // no-op
+    }
+
+    /**
+     * Copies a {@link String} to the clipboard and shows a {@link Toast} informing the user that the code was copied.
+     */
+    public static void copyToClipboard(Context context, ClipboardManager manager, String code) {
+        manager.setPrimaryClip(ClipData.newPlainText(null, code));
+        Toast.makeText(context,
+                R.string.code_copied,
+                Toast.LENGTH_SHORT).show();
+    }
+}

app/src/main/java/org/fedorahosted/freeotp/TokenAdapter.java

@@ -20,7 +20,6 @@
 
 package org.fedorahosted.freeotp;
 
-import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
 import android.content.Intent;
@@ -30,8 +29,6 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.PopupMenu;
-import android.widget.Toast;
-
 import org.fedorahosted.freeotp.edit.DeleteActivity;
 import org.fedorahosted.freeotp.edit.EditActivity;
 
@@ -123,11 +120,11 @@ public void onClick(View v) {
                 //save token. Image wasn't changed here, so just save it in sync
                 new TokenPersistence(ctx).save(token);
 
+                Context applicationContext = v.getContext().getApplicationContext();
+                String currentCode = codes.getCurrentCode();
+
                 // Copy code to clipboard.
-                mClipMan.setPrimaryClip(ClipData.newPlainText(null, codes.getCurrentCode()));
-                Toast.makeText(v.getContext().getApplicationContext(),
-                        R.string.code_copied,
-                        Toast.LENGTH_SHORT).show();
+                ClipboardManagerUtil.copyToClipboard(applicationContext, mClipMan, currentCode);
 
                 mTokenCodes.put(token.getID(), codes);
                 ((TokenLayout) v).start(token.getType(), codes, true);

app/src/main/java/org/fedorahosted/freeotp/TokenLayout.java

@@ -93,10 +93,7 @@ public void bind(Token token, int menu, PopupMenu.OnMenuItemClickListener micl)
         mProgressOuter.setVisibility(View.GONE);
 
         // Get the code placeholder.
-        char[] placeholder = new char[token.getDigits()];
-        for (int i = 0; i < placeholder.length; i++)
-            placeholder[i] = '-';
-        mPlaceholder = new String(placeholder);
+        mPlaceholder = TokenPlaceholderGenerator.generate(token);
 
         // Show the image.
         Picasso.with(getContext())

app/src/main/java/org/fedorahosted/freeotp/TokenPersistence.java

@@ -41,12 +41,14 @@
 import java.util.LinkedList;
 import java.util.List;
 import java.util.UUID;
+import org.fedorahosted.freeotp.widget.OtpListWidgetProvider;
 
 public class TokenPersistence {
     private static final String NAME  = "tokens";
     private static final String ORDER = "tokenOrder";
     private final SharedPreferences prefs;
     private final Gson gson;
+    private final Context context;
 
     private List<String> getTokenOrder() {
         Type type = new TypeToken<List<String>>(){}.getType();
@@ -60,6 +62,7 @@ private SharedPreferences.Editor setTokenOrder(List<String> order) {
     }
 
     public TokenPersistence(Context ctx) {
+        context = ctx;
         prefs = ctx.getApplicationContext().getSharedPreferences(NAME, Context.MODE_PRIVATE);
         gson = new Gson();
     }
@@ -102,6 +105,7 @@ public void save(Token token) {
         List<String> order = getTokenOrder();
         order.add(0, key);
         setTokenOrder(order).putString(key, gson.toJson(token)).apply();
+        OtpListWidgetProvider.notifyWidgetDataChanged(context);
     }
 
     public void move(int fromPosition, int toPosition) {
@@ -116,12 +120,14 @@ public void move(int fromPosition, int toPosition) {
 
         order.add(toPosition, order.remove(fromPosition));
         setTokenOrder(order).apply();
+        OtpListWidgetProvider.notifyWidgetDataChanged(context);
     }
 
     public void delete(int position) {
         List<String> order = getTokenOrder();
         String key = order.remove(position);
         setTokenOrder(order).remove(key).apply();
+        OtpListWidgetProvider.notifyWidgetDataChanged(context);
     }
 
     /**

app/src/main/java/org/fedorahosted/freeotp/TokenPlaceholderGenerator.java

@@ -0,0 +1,18 @@
+package org.fedorahosted.freeotp;
+
+/**
+ * Generates a placeholder {@link String} to show when
+ * a {@link Token}'s code should not be shown.
+ */
+public final class TokenPlaceholderGenerator {
+    private TokenPlaceholderGenerator(){
+        // no-op
+    }
+
+    public static String generate(final Token token){
+        char[] placeholder = new char[token.getDigits()];
+        for (int i = 0; i < placeholder.length; i++)
+            placeholder[i] = '-';
+        return new String(placeholder);
+    }
+}

app/src/main/java/org/fedorahosted/freeotp/widget/OtpListWidgetProvider.java

@@ -0,0 +1,118 @@
+/*
+ * FreeOTP
+ *
+ * Authors: Nathaniel McCallum <[email protected]>
+ *
+ * Copyright (C) 2013  Nathaniel McCallum, Red Hat
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.fedorahosted.freeotp.widget;
+
+import android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProvider;
+import android.content.ClipboardManager;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.widget.RemoteViews;
+import org.fedorahosted.freeotp.*;
+
+public class OtpListWidgetProvider extends AppWidgetProvider {
+
+    /**
+     * Should be called whenever the {@link Token}s in the {@link TokenPersistence} are changed.
+     */
+    public static void notifyWidgetDataChanged(final Context context) {
+        final AppWidgetManager manager = AppWidgetManager.getInstance(context);
+        final ComponentName providerComponentName = new ComponentName(context, OtpListWidgetProvider.class);
+        final int[] widgetIds = manager.getAppWidgetIds(providerComponentName);
+        manager.notifyAppWidgetViewDataChanged(widgetIds, R.id.list_widget);
+    }
+
+    @Override
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        super.onUpdate(context, appWidgetManager, appWidgetIds);
+        for (final int widgetId : appWidgetIds) {
+            final RemoteViews widget = getFirstWidget(context, widgetId);
+            appWidgetManager.updateAppWidget(widgetId, widget);
+        }
+    }
+
+    @Override
+    public void onReceive(final Context context, final Intent intent) {
+        super.onReceive(context, intent);
+        final String action = intent.getAction();
+        if (OtpListWidgetService.ACTION_SHOW_CODE.equals(action) ||
+                OtpListWidgetService.ACTION_HIDE_CODE.equals(action)) {
+            int widgetId = intent.getIntExtra(
+                    AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
+            final String tokenId = intent.getStringExtra(OtpListWidgetService.EXTRA_TOKEN_ID);
+            final OtpListWidgetViewModel model = OtpListWidgetViewModel.getInstance(widgetId);
+            final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
+
+            if (OtpListWidgetService.ACTION_SHOW_CODE.equals(action)) {
+                model.addTokenIdToShow(tokenId);
+                final ClipboardManager clipboardManager =
+                        (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
+                final String code = getCodeForTokenId(context, tokenId);
+                ClipboardManagerUtil.copyToClipboard(context, clipboardManager, code);
+            } else {
+                model.removeTokenIdToShow(tokenId);
+            }
+            appWidgetManager.notifyAppWidgetViewDataChanged(widgetId, R.id.list_widget);
+        }
+    }
+
+    private RemoteViews getFirstWidget(Context context, int widgetId) {
+        final Intent serviceIntent = new Intent(context, OtpListWidgetService.class)
+                .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetId);
+        final RemoteViews widget = new RemoteViews(context.getPackageName(), R.layout.list_widget);
+        widget.setRemoteAdapter(R.id.list_widget, serviceIntent);
+        widget.setEmptyView(R.id.list_widget, android.R.id.empty);
+
+        setTitleIntent(context, widget);
+        setCodeClickPendingIntentTemplate(context, widget, widgetId);
+        return widget;
+    }
+
+    private void setTitleIntent(final Context context, final RemoteViews widget) {
+        final Intent intent = new Intent(context, MainActivity.class)
+                .setAction(Intent.ACTION_MAIN);
+        final PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
+        widget.setOnClickPendingIntent(R.id.widget_title_container, pendingIntent);
+    }
+
+    private void setCodeClickPendingIntentTemplate(Context context, RemoteViews widget, int widgetId) {
+        final Intent codeClickIntent = new Intent(context, OtpListWidgetProvider.class)
+                .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetId);
+        codeClickIntent.setData(Uri.parse(codeClickIntent.toUri(Intent.URI_INTENT_SCHEME)));
+        final PendingIntent showCodeIntentTemplate =
+                PendingIntent.getBroadcast(context, 0, codeClickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+        widget.setPendingIntentTemplate(R.id.list_widget, showCodeIntentTemplate);
+    }
+
+    private String getCodeForTokenId(final Context context, final String id) {
+        final TokenPersistence persistence = new TokenPersistence(context);
+        for (int i = 0; i <= persistence.length(); i++) {
+            final Token token = persistence.get(i);
+            if (token.getID().equals(id)) {
+                return token.generateCodes().getCurrentCode();
+            }
+        }
+        return null;
+    }
+}