add required components for widget

clients/android/NewsBlur/AndroidManifest.xml

@@ -137,9 +137,16 @@
         <activity
             android:name=".activity.SocialFeedReading"/>
 
+        <activity android:name=".activity.ConfigureWidgetActivity">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
+            </intent-filter>
+        </activity>
         <service 
             android:name=".service.NBSyncService"
             android:permission="android.permission.BIND_JOB_SERVICE" />
+        <service android:name=".widget.WidgetRemoteViewsService"
+            android:permission="android.permission.BIND_REMOTEVIEWS"/>
 
         <receiver android:name=".service.BootReceiver">
             <intent-filter>
@@ -150,7 +157,13 @@
         <receiver android:name=".util.NotifyDismissReceiver" android:exported="false" />
         <receiver android:name=".util.NotifySaveReceiver" android:exported="false" />
         <receiver android:name=".util.NotifyMarkreadReceiver" android:exported="false" />
-
+        <receiver android:name=".widget.NewsBlurWidgetProvider" >
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+            </intent-filter>
+            <meta-data android:name="android.appwidget.provider"
+                android:resource="@xml/newsblur_appwidget_info" />
+        </receiver>
         <provider
             android:name="android.support.v4.content.FileProvider"
             android:authorities="com.newsblur.fileprovider"

clients/android/NewsBlur/res/layout/newsblur_widget.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <ListView
+        android:id="@+id/widget_list"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+
+<!--    Note that empty views must be siblings of the collection view
+        for which the empty view represents empty state.-->
+
+
+</FrameLayout>

clients/android/NewsBlur/res/layout/newsblur_widget_item.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+</LinearLayout>

clients/android/NewsBlur/res/xml/newsblur_appwidget_info.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+    android:minWidth="40dp"
+    android:minHeight="40dp"
+    android:updatePeriodMillis="86400000"
+    android:previewImage="@drawable/preview"
+    android:initialLayout="@layout/newsblur_widget"
+    android:configure="com.newsblur.activity.ConfigureWidgetActivity"
+    android:resizeMode="horizontal|vertical"
+    android:widgetCategory="home_screen">
+</appwidget-provider>

clients/android/NewsBlur/src/com/newsblur/activity/ConfigureWidgetActivity.java

@@ -0,0 +1,46 @@
+package com.newsblur.activity;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.RemoteViews;
+
+import com.newsblur.R;
+
+public class ConfigureWidgetActivity extends NbActivity {
+    private int appWidgetId;
+
+    @Override
+    protected void onCreate(Bundle bundle) {
+        super.onCreate(bundle);
+
+        Intent intent = getIntent();
+        Bundle extras = intent.getExtras();
+        if (extras != null) {
+            appWidgetId = extras.getInt(
+                    AppWidgetManager.EXTRA_APPWIDGET_ID,
+                    AppWidgetManager.INVALID_APPWIDGET_ID);
+        }
+
+        // set result as cancelled in the case that we don't finish config
+        Intent resultValue = new Intent();
+        resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
+        setResult(RESULT_CANCELED, resultValue);
+        //todo update all the data
+    }
+
+
+    private void saveWidget(){
+        //update widget
+        AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this);
+        RemoteViews views = new RemoteViews(getPackageName(),
+                R.layout.newsblur_widget);
+        appWidgetManager.updateAppWidget(appWidgetId, views);
+
+
+        Intent resultValue = new Intent();
+        resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
+        setResult(RESULT_OK, resultValue);
+        finish();
+    }
+}

clients/android/NewsBlur/src/com/newsblur/widget/NewsBlurWidgetProvider.java

@@ -0,0 +1,72 @@
+package com.newsblur.widget;
+
+import android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProvider;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.widget.RemoteViews;
+
+import com.newsblur.R;
+
+public class NewsBlurWidgetProvider extends AppWidgetProvider {
+    public static String ACTION_OPEN_STORY = "ACTION_OPEN_STORY";
+    public static String EXTRA_ITEM_ID = "EXTRA_ITEM_ID";
+
+    /**
+     * Called to update at regular interval
+     */
+    @Override
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        // update each of the app widgets with the remote adapter
+        for (int i = 0; i < appWidgetIds.length; ++i) {
+
+            // Set up the intent that starts the StackViewService, which will
+            // provide the views for this collection.
+            Intent intent = new Intent(context, WidgetRemoteViewsService.class);
+            // Add the app widget ID to the intent extras.
+            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
+            intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
+            // Instantiate the RemoteViews object for the app widget layout.
+            RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.newsblur_widget);
+            // Set up the RemoteViews object to use a RemoteViews adapter.
+            // This adapter connects
+            // to a RemoteViewsService  through the specified intent.
+            // This is how you populate the data.
+            rv.setRemoteAdapter(R.id.widget_list, intent);
+
+            // The empty view is displayed when the collection has no items.
+            // It should be in the same layout used to instantiate the RemoteViews
+            // object above.
+            rv.setEmptyView(R.id.widget_list, R.id.empty_view);
+
+            //
+            // Do additional processing specific to this app widget...
+            //
+            // This section makes it possible for items to have individualized behavior.
+            // It does this by setting up a pending intent template. Individuals items of a collection
+            // cannot set up their own pending intents. Instead, the collection as a whole sets
+            // up a pending intent template, and the individual items set a fillInIntent
+            // to create unique behavior on an item-by-item basis.
+            Intent toastIntent = new Intent(context, NewsBlurWidgetProvider.class);
+            // Set the action for the intent.
+            // When the user touches a particular view, it will have the effect of
+            // broadcasting TOAST_ACTION.
+            toastIntent.setAction(NewsBlurWidgetProvider.TOAST_ACTION);
+            toastIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
+            intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
+            PendingIntent toastPendingIntent = PendingIntent.getBroadcast(context, 0, toastIntent,
+                    PendingIntent.FLAG_UPDATE_CURRENT);
+            rv.setPendingIntentTemplate(R.id.stack_view, toastPendingIntent);
+
+
+            appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
+        }
+
+
+        super.onUpdate(context, appWidgetManager, appWidgetIds);
+    }
+
+
+}

clients/android/NewsBlur/src/com/newsblur/widget/WidgetRemoteViewsService.java

@@ -0,0 +1,66 @@
+package com.newsblur.widget;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.RemoteViews;
+import android.widget.RemoteViewsService;
+
+import com.newsblur.R;
+
+public class WidgetRemoteViewsService extends RemoteViewsService {
+    @Override
+    public RemoteViewsFactory onGetViewFactory(Intent intent) {
+        return new WidgetRemoteViewsFactory(this.getApplicationContext(), intent);
+    }
+}
+
+class WidgetRemoteViewsFactory implements RemoteViewsService.RemoteViewsFactory {
+    private Context context;
+    private int appWidgetId;
+    public WidgetRemoteViewsFactory(Context context, Intent intent) {
+        this.context = context;
+        appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
+                AppWidgetManager.INVALID_APPWIDGET_ID);
+    }
+    /**
+     * The system calls onCreate() when creating your factory for the first time.
+     * This is where you set up any connections and/or cursors to your data source.
+     *
+     * Heavy lifting,
+     * for example downloading or creating content etc, should be deferred to onDataSetChanged()
+     * or getViewAt(). Taking more than 20 seconds in this call will result in an ANR.
+     */
+    @Override
+    public void onCreate() {
+        //TODO
+    }
+
+    @Override
+    public RemoteViews getViewAt(int position) {
+        // Construct a remote views item based on the app widget item XML file,
+        // and set the text based on the position.
+        RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.newsblur_widget_item);
+         rv.setTextViewText(R.id.newsblur_widget_item, widgetItems.get(position).text);
+
+
+
+        // Next, set a fill-intent, which will be used to fill in the pending intent template
+        // that is set on the collection view in StackWidgetProvider.
+        Bundle extras = new Bundle();
+        extras.putInt(NewsBlurWidgetProvider.EXTRA_ITEM_ID, position);
+        Intent fillInIntent = new Intent();
+        fillInIntent.putExtras(extras);
+        // Make it possible to distinguish the individual on-click
+        // action of a given item
+        rv.setOnClickFillInIntent(R.id.newsblur_widget_item, fillInIntent);
+        return rv;
+    }
+
+
+    @Override
+    public void onDataSetChanged() {
+        // fetch any new data
+    }
+}