Initial widget work

Co-authored-by: Sylvia van Os <sylvia@hackerchick.me>

app/src/main/AndroidManifest.xml

@@ -30,6 +30,20 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         android:localeConfig="@xml/locales_config">
+        
+        <receiver
+            android:name="CatimaWidget"
+            android:label="@string/card_list_widget_name"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/catima_widget_info" />
+         </receiver>
+
         <activity
             android:name=".MainActivity"
             android:exported="true"
@@ -204,5 +218,9 @@
                 <action android:name="android.service.controls.ControlsProviderService" />
             </intent-filter>
         </service>
+
+        <service
+            android:name=".CatimaRemoteViewsService"
+            android:permission="android.permission.BIND_REMOTEVIEWS" />
     </application>
 </manifest>

app/src/main/java/protect/card_locker/CatimaRemoteViewsService.kt

@@ -0,0 +1,110 @@
+package protect.card_locker
+
+import android.content.Context
+import android.content.Intent
+import android.database.sqlite.SQLiteDatabase
+import android.graphics.Color
+import android.graphics.drawable.Icon
+import android.os.Build
+import android.view.View
+import android.widget.RemoteViews
+import android.widget.RemoteViewsService
+import protect.card_locker.DBHelper.LoyaltyCardArchiveFilter
+import kotlin.math.max
+
+class CatimaWidgetRemoteViewsFactory(private var context: Context) :
+    RemoteViewsService.RemoteViewsFactory {
+
+    private var mDatabase: SQLiteDatabase = DBHelper(context).readableDatabase
+
+    override fun onCreate() {
+        onDataSetChanged()
+    }
+
+    private var mCards: ArrayList<LoyaltyCard> = ArrayList()
+
+    override fun onDataSetChanged() {
+        val mOrder = Utils.getLoyaltyCardOrder(context);
+        val mOrderDirection = Utils.getLoyaltyCardOrderDirection(context);
+
+        val cur = DBHelper.getLoyaltyCardCursor(
+            mDatabase,
+            "",
+            null,
+            mOrder,
+            mOrderDirection,
+            LoyaltyCardArchiveFilter.Unarchived
+        )
+
+        mCards.clear()
+        if (cur.moveToFirst()) {
+            do {
+                val item = LoyaltyCard.fromCursor(context, cur)
+                mCards.add(item)
+            } while (cur.moveToNext())
+        }
+    }
+
+    override fun onDestroy() {}
+
+    override fun getCount(): Int {
+        return max(1, mCards.count())
+    }
+
+    private fun createRemoteView(item: LoyaltyCard): RemoteViews
+    {
+        val rv = RemoteViews(context.packageName, R.layout.catima_widget_item).apply {
+            val headerColor = Utils.getHeaderColor(context, item)
+            val foreground = if (Utils.needsDarkForeground(headerColor)) Color.BLACK else Color.WHITE
+            setInt(R.id.item_container, "setBackgroundColor", headerColor)
+            val icon = item.getImageThumbnail(context)
+            // setImageViewIcon is not supported on Android 5, so force Android 5 down the text path
+            if (icon != null && Build.VERSION.SDK_INT >= 23) {
+                setInt(R.id.item_container, "setBackgroundColor", foreground)
+                setImageViewIcon(R.id.item_image, Icon.createWithBitmap(icon))
+                setViewVisibility(R.id.item_text, View.INVISIBLE)
+                setViewVisibility(R.id.item_image, View.VISIBLE)
+            } else {
+                setImageViewBitmap(R.id.item_image, null)
+                setTextViewText(R.id.item_text, item.store)
+                setViewVisibility(R.id.item_text, View.VISIBLE)
+                setViewVisibility(R.id.item_image, View.INVISIBLE)
+                setTextColor(
+                    R.id.item_text,
+                    foreground
+                )
+            }
+
+            val fillInIntent = Intent().apply {
+                putExtra(LoyaltyCardViewActivity.BUNDLE_ID, item.id)
+            }
+
+            setOnClickFillInIntent(R.id.item_container, fillInIntent)
+        }
+
+        return rv
+    }
+
+    override fun getViewAt(position: Int): RemoteViews {
+        if (mCards.isEmpty()) {
+            return RemoteViews(context.packageName, R.layout.catima_widget_empty)
+        }
+
+        val item = mCards[position]
+        return createRemoteView(item)
+    }
+
+    override fun getLoadingView(): RemoteViews? = null
+
+    override fun getViewTypeCount(): Int = 1
+
+    override fun getItemId(position: Int): Long = position.toLong()
+
+    override fun hasStableIds(): Boolean = true
+}
+
+class CatimaRemoteViewsService : RemoteViewsService() {
+    override fun onGetViewFactory(intent: Intent?): RemoteViewsFactory {
+        return CatimaWidgetRemoteViewsFactory(applicationContext)
+    }
+}

app/src/main/java/protect/card_locker/CatimaWidget.kt

@@ -0,0 +1,34 @@
+package protect.card_locker
+
+import android.app.PendingIntent
+import android.appwidget.AppWidgetManager
+import android.appwidget.AppWidgetProvider
+import android.content.Context
+import android.content.Intent
+import android.widget.RemoteViews
+
+class CatimaWidget : AppWidgetProvider() {
+    override fun onUpdate(
+        context: Context,
+        appWidgetManager: AppWidgetManager,
+        appWidgetIds: IntArray
+    ) {
+        for (appWidgetId in appWidgetIds) {
+            val views = RemoteViews(context.packageName, R.layout.catima_widget)
+            val intent = Intent(context, CatimaRemoteViewsService::class.java)
+            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId)
+            views.setRemoteAdapter(R.id.grid_view, intent)
+
+            val templateIntent =  Intent(context, LoyaltyCardViewActivity::class.java)
+            val pendingIntent = PendingIntent.getActivity(
+                context,
+                0,
+                templateIntent,
+                PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
+            )
+
+            views.setPendingIntentTemplate(R.id.grid_view, pendingIntent)
+            appWidgetManager.updateAppWidget(appWidgetId, views)
+        }
+    }
+}

app/src/main/java/protect/card_locker/MainActivity.java

@@ -2,6 +2,8 @@ package protect.card_locker;
 
 import android.app.Activity;
 import android.app.SearchManager;
+import android.appwidget.AppWidgetManager;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
@@ -330,22 +332,8 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         selectedTab = activeTabPref.getInt(getString(R.string.sharedpreference_active_tab), 0);
 
         // Restore sort preferences from Shared Preferences
-        // If one of the sorting prefererences has never been set or is set to an invalid value,
-        // stick to the defaults.
-        SharedPreferences sortPref = getApplicationContext().getSharedPreferences(
-                getString(R.string.sharedpreference_sort),
-                Context.MODE_PRIVATE);
-
-        String orderString = sortPref.getString(getString(R.string.sharedpreference_sort_order), null);
-        String orderDirectionString = sortPref.getString(getString(R.string.sharedpreference_sort_direction), null);
-
-        if (orderString != null && orderDirectionString != null) {
-            try {
-                mOrder = DBHelper.LoyaltyCardOrder.valueOf(orderString);
-                mOrderDirection = DBHelper.LoyaltyCardOrderDirection.valueOf(orderDirectionString);
-            } catch (IllegalArgumentException ignored) {
-            }
-        }
+        mOrder = Utils.getLoyaltyCardOrder(this);
+        mOrderDirection = Utils.getLoyaltyCardOrderDirection(this);
 
         mGroup = null;
 
@@ -442,6 +430,14 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         if (mCurrentActionMode != null) {
             mCurrentActionMode.finish();
         }
+
+        updateWidget(mAdapter.mContext);
+    }
+
+    private void updateWidget(Context context) {
+        AppWidgetManager manager = AppWidgetManager.getInstance(context);
+        int[] ids = manager.getAppWidgetIds(new ComponentName(context, CatimaWidget.class));
+        manager.notifyAppWidgetViewDataChanged(ids, R.id.grid_view);
     }
 
     private void processParseResultList(List<ParseResult> parseResultList, String group, boolean closeAppOnNoBarcode) {

app/src/main/java/protect/card_locker/Utils.java

@@ -4,6 +4,7 @@ import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
@@ -1176,4 +1177,40 @@ public class Utils {
 
         return ImageView.ScaleType.FIT_CENTER;
     }
+
+    public static DBHelper.LoyaltyCardOrder getLoyaltyCardOrder(Context context) {
+        SharedPreferences sortPref = context.getSharedPreferences(
+                "sharedpreference_sort",
+                Context.MODE_PRIVATE
+        );
+
+        String orderString = sortPref.getString("sharedpreference_sort_order", null);
+
+        if (orderString != null) {
+            try {
+                return DBHelper.LoyaltyCardOrder.valueOf(orderString);
+            } catch (IllegalArgumentException ignored) {
+            }
+        }
+
+        return DBHelper.LoyaltyCardOrder.Alpha;
+    }
+
+    public static DBHelper.LoyaltyCardOrderDirection getLoyaltyCardOrderDirection(Context context) {
+        SharedPreferences sortPref = context.getSharedPreferences(
+                "sharedpreference_sort",
+                Context.MODE_PRIVATE
+        );
+
+        String orderDirectionString = sortPref.getString("sharedpreference_sort_direction", null);
+
+        if (orderDirectionString != null) {
+            try {
+                return DBHelper.LoyaltyCardOrderDirection.valueOf(orderDirectionString);
+            } catch (IllegalArgumentException ignored) {
+            }
+        }
+
+        return DBHelper.LoyaltyCardOrderDirection.Ascending;
+    }
 }

app/src/main/res/layout/catima_widget.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/widget_layout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <GridView
+        android:id="@+id/grid_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:numColumns="3"
+        android:verticalSpacing="4dp"
+        android:horizontalSpacing="4dp"
+        android:stretchMode="columnWidth"
+        android:gravity="center"/>
+</LinearLayout>

app/src/main/res/layout/catima_widget_empty.xml

@@ -0,0 +1,12 @@
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:id="@+id/widget_layout"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/no_cards_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="@string/no_loyalty_cards" />
+</LinearLayout>

app/src/main/res/layout/catima_widget_item.xml

@@ -0,0 +1,26 @@
+<?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="56dp"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:orientation="vertical"
+    android:gravity="center"
+    android:id="@+id/item_container"
+    android:padding="4dp">
+
+    <ImageView
+        android:id="@+id/item_image"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_gravity="center|center" />
+
+    <TextView
+        android:id="@+id/item_text"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:autoSizeMinTextSize="6sp"
+        app:autoSizeTextType="uniform"
+        android:layout_gravity="center|center"
+        android:gravity="center" />
+
+</FrameLayout>

app/src/main/res/values/strings.xml

@@ -362,5 +362,7 @@
     <string name="unsupportedFile">This file is not supported</string>
     <string name="generic_error_please_retry">Sorry, something went wrong, please try again...</string>
     <string name="width">Width</string>
+    <string name="card_list_widget_name">Card list</string>
     <string name="setBarcodeWidth">Set Barcode Width</string>
+    <string name="no_loyalty_cards">No loyalty cards</string>
 </resources>

app/src/main/res/xml/catima_widget_info.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+    android:initialKeyguardLayout="@layout/catima_widget"
+    android:initialLayout="@layout/catima_widget"
+    android:minWidth="245dp"
+    android:minHeight="54dp"
+    android:previewImage="@drawable/widget_preview"
+    android:resizeMode="horizontal|vertical"
+    android:targetCellWidth="4"
+    android:targetCellHeight="2"
+    android:updatePeriodMillis="86400000"
+    android:widgetCategory="home_screen" />