Printer: allow printing incoming text shared to Gadgetbridge

Add a new NotificationType for received text.
Add device specific settings to the printer coordinator, also add setting to print received text (defaults to on).

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/TextReceiverActivity.java

@@ -71,7 +71,7 @@ public class TextReceiverActivity extends AbstractGBActivity {
         notificationSpec.body = text;
         notificationSpec.sourceAppId = BuildConfig.APPLICATION_ID;
         notificationSpec.sourceName = appName;
-        notificationSpec.type = NotificationType.UNKNOWN;
+        notificationSpec.type = NotificationType.GADGETBRIDGE_TEXT_RECEIVER;
 
         GBApplication.deviceService().onNotification(notificationSpec);
         finish();

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/thermalprinter/ThermalPrinterCoordinator.java

@@ -12,6 +12,7 @@ import java.util.List;
 
 import nodomain.freeyourgadget.gadgetbridge.GBException;
 import nodomain.freeyourgadget.gadgetbridge.R;
+import nodomain.freeyourgadget.gadgetbridge.activities.devicesettings.DeviceSpecificSettings;
 import nodomain.freeyourgadget.gadgetbridge.devices.AbstractBLEDeviceCoordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.DeviceCardAction;
 import nodomain.freeyourgadget.gadgetbridge.devices.InstallHandler;
@@ -79,6 +80,14 @@ public class ThermalPrinterCoordinator extends AbstractBLEDeviceCoordinator {
         return null;
     }
 
+    @Override
+    public DeviceSpecificSettings getDeviceSpecificSettings(GBDevice device) {
+        final DeviceSpecificSettings deviceSpecificSettings = new DeviceSpecificSettings();
+
+        deviceSpecificSettings.addRootScreen(R.xml.devicesettings_print_received_text);
+        return deviceSpecificSettings;
+    }
+
     @Override
     public List<DeviceCardAction> getCustomActions() {
         return Collections.singletonList(new ControlDeviceCardAction());

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/NotificationType.java

@@ -60,6 +60,7 @@ public enum NotificationType {
     TUMBLR,
     PINTEREST,
     YOUTUBE,
+    GADGETBRIDGE_TEXT_RECEIVER,
     ;
 
 
@@ -120,6 +121,7 @@ public enum NotificationType {
             case YAHOO_MAIL:
                 return "generic_email";
             case COL_REMINDER:
+            case GADGETBRIDGE_TEXT_RECEIVER:
             case UNKNOWN:
             default:
                 return "generic";

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/thermalprinter/GenericThermalPrinterSupport.java

@@ -2,6 +2,7 @@ package nodomain.freeyourgadget.gadgetbridge.service.devices.thermalprinter;
 
 import android.bluetooth.BluetoothGatt;
 import android.bluetooth.BluetoothGattCharacteristic;
+import android.content.SharedPreferences;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
@@ -34,6 +35,7 @@ import nodomain.freeyourgadget.gadgetbridge.activities.devicesettings.DeviceSett
 import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventBatteryInfo;
 import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
 import nodomain.freeyourgadget.gadgetbridge.model.NotificationSpec;
+import nodomain.freeyourgadget.gadgetbridge.model.NotificationType;
 import nodomain.freeyourgadget.gadgetbridge.service.btle.AbstractBTLESingleDeviceSupport;
 import nodomain.freeyourgadget.gadgetbridge.service.btle.TransactionBuilder;
 import nodomain.freeyourgadget.gadgetbridge.util.GB;
@@ -119,6 +121,18 @@ public class GenericThermalPrinterSupport extends AbstractBTLESingleDeviceSuppor
 
     @Override
     public void onNotification(NotificationSpec notificationSpec) {
+        if(notificationSpec.type.equals(NotificationType.GADGETBRIDGE_TEXT_RECEIVER)) {
+            final SharedPreferences prefs = GBApplication.getDeviceSpecificSharedPrefs(getDevice().getAddress());
+            if(!prefs.getBoolean("pref_printer_print_received_text", false)) {
+                LOG.info("Not printing received text, device preference forbids this.");
+                return;
+            }
+
+            //title is appName
+            //body is the shared text
+            // see TextReceiverActivity.java
+            printImage(createBitmapFromString(notificationSpec.body), false, PrintAlignment.ALIGN_LEFT);
+        }
 //        printImage(createNotificationBitmap(notificationSpec), true, PrintAlignment.ALIGN_LEFT);
     }
 

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

@@ -4165,4 +4165,5 @@
     <string name="pref_summary_time_interval">Restrict to specific intervals</string>
     <string name="prefs_key_enable_deprecated_notificationcollectormonitor_title">Enable the deprecated Notification Collector Monitor Service</string>
     <string name="prefs_key_enable_deprecated_notificationcollectormonitor_summary">Forces the usage of a second foreground service to keep the Notification monitor alive, activate this option if Gadgetbridge stops receiving notifications.\nPlease note that it might cause a second persistent notification to be shown.\nRestart the application after toggling.</string>
+    <string name="pref_printer_print_received_text">Print text shared to Gadgetbridge</string>
 </resources>

app/src/main/res/xml/devicesettings_print_received_text.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <SwitchPreferenceCompat
+        android:defaultValue="true"
+        android:icon="@drawable/ic_settings"
+        android:key="pref_printer_print_received_text"
+        android:layout="@layout/preference_checkbox"
+        android:title="@string/pref_printer_print_received_text" />
+
+</androidx.preference.PreferenceScreen>