--- /dev/null
+/* This file is part of NIT ( http://www.nitlanguage.org ).
+ *
+ * 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 nit.app;
+
+import android.app.Service;
+import android.content.Intent;
+import android.os.IBinder;
+
+// Service implemented in Nit
+public class NitService extends Service {
+
+ protected int nitService = 0;
+
+ static {
+ System.loadLibrary("main");
+ }
+
+ @Override
+ public int onStartCommand(Intent intent, int flags, int id) {
+ return nitOnStartCommand(nitService, intent, flags, id);
+ }
+
+ @Override
+ public void onCreate() {
+ nitService = nitNewService();
+ nitOnCreate(nitService);
+ super.onCreate();
+ }
+
+ @Override
+ public void onDestroy() {
+ nitOnDestroy(nitService);
+ super.onDestroy();
+ }
+
+ @Override
+ public IBinder onBind(Intent arg) {
+ return null;
+ }
+
+ protected native int nitNewService();
+ protected native int nitOnStartCommand(int nitService, Intent intent, int flags, int id);
+ protected native void nitOnCreate(int nitService);
+ protected native void nitOnDestroy(int nitService);
+}
--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# 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.
+
+# Android service support for _app.nit_ centered around the class `Service`
+module service is
+ extra_java_files "NitService.java"
+ android_manifest_application """<service android:name="nit.app.NitService"></service>"""
+end
+
+import android::nit_activity
+
+in "C" `{
+ // Nit's App running instance, declared in `nit_activity`
+ extern App global_app;
+
+ JNIEXPORT jint JNICALL Java_nit_app_NitService_nitNewService
+ (JNIEnv *env, jobject java_service)
+ {
+ // Pin a ref to the Java service in the Java GC
+ java_service = (*env)->NewGlobalRef(env, java_service);
+
+ // Create the service in Nit and pin it in the Nit GC
+ Service nit_service = App_register_service(global_app, java_service);
+
+ // FIXME replace the previous call to register_service by
+ // the following line when #1941 is fixed:
+ //Service nit_service = new_Service(java_service);
+
+ Service_incr_ref(nit_service);
+
+ return (jint)(void*)nit_service;
+ }
+
+ JNIEXPORT jint JNICALL Java_nit_app_NitService_nitOnStartCommand
+ (JNIEnv *env, jobject java_service, jint nit_service, jobject intent, jint flags, jint id)
+ {
+ return Service_on_start_command((Service)nit_service, intent, flags, id);
+ }
+
+ JNIEXPORT void JNICALL Java_nit_app_NitService_nitOnCreate
+ (JNIEnv *env, jobject java_service, jint nit_service)
+ {
+ Service_on_create((Service)nit_service);
+ }
+
+ JNIEXPORT void JNICALL Java_nit_app_NitService_nitOnDestroy
+ (JNIEnv *env, jobject java_service, jint nit_service)
+ {
+ Service_on_destroy((Service)nit_service);
+
+ // Unpin the service instances in both Nit and Java
+ java_service = Service_native((Service)nit_service);
+ (*env)->DeleteGlobalRef(env, java_service);
+ Service_decr_ref(nit_service);
+ }
+`}
+
+redef class App
+
+ # Current instance of `Service`, if any
+ var service: nullable Service = null
+
+ # Launch `Service` in the background, it will be set as `service` when ready
+ fun start_service do native_context.start_service
+
+ # Register a service from Java/C
+ #
+ # FIXME remove when #1941 is fixed
+ private fun register_service(java_service: NativeService): Service
+ do
+ return new Service(java_service.new_global_ref)
+ end
+
+ # Prioritize an activity context if one is running, fallback on a service
+ redef fun native_context
+ do
+ if activities.not_empty then return super
+
+ var service = service
+ assert service != null
+ return service.native
+ end
+
+ # Dummy method to force the compilation of callbacks from C
+ #
+ # The callbacks are used in the launch of a Nit service from C code.
+ private fun force_service_callbacks_in_c import Service, register_service,
+ Service.on_start_command, Service.on_create, Service.on_destroy, Service.native `{ `}
+
+ redef fun setup
+ do
+ super
+
+ # Call the dummy method to force their compilation in global compilation
+ force_service_callbacks_in_c
+ end
+end
+
+# Android service with its life-cycle callbacks
+class Service
+ # Java service with the Android context of this service
+ var native: NativeService
+
+ # The service has been created
+ fun on_create do app.service = self
+
+ # The service received a start command (may happen more then once per service)
+ #
+ # Should return either `start_sticky`, `start_not_sticky` or `start_redeliver_intent`.
+ fun on_start_command(intent: JavaObject, flags, id: Int): Int do return start_sticky
+
+ # The service is being destroyed
+ fun on_destroy do app.service = null
+end
+
+# Wrapper of Java class `android.app.Service`
+extern class NativeService in "Java" `{ android.app.Service `}
+ super NativeContext
+
+ redef fun new_global_ref import sys, Sys.jni_env `{
+ Sys sys = NativeService_sys(self);
+ JNIEnv *env = Sys_jni_env(sys);
+ return (*env)->NewGlobalRef(env, self);
+ `}
+end
+
+redef class NativeContext
+ private fun start_service in "Java" `{
+ android.content.Intent indent =
+ new android.content.Intent(self, nit.app.NitService.class);
+ self.startService(intent);
+ `}
+end
+
+# The service is explicitly started and stopped, it is restarted if stopped by the system
+#
+# Return value of `Service::on_start_command`.
+fun start_sticky: Int in "Java" `{ return android.app.Service.START_STICKY; `}
+
+# The service may be stopped by the system and will not be restarted
+#
+# Return value of `Service::on_start_command`.
+fun start_not_sticky: Int in "Java" `{ return android.app.Service.START_NOT_STICKY; `}
+
+# The service is explicitly started and stopped, it is restarted with the last intent if stopped by the system
+#
+# Return value of `Service::on_start_command`.
+fun start_redeliver_intent: Int in "Java" `{ return android.app.Service.START_REDELIVER_INTENT; `}
nitlanguage / nit.git / commitdiff