notification support using libportal

src/api-impl-jni/app/android_app_NotificationManager.c

@@ -0,0 +1,98 @@
+#include <libportal/portal.h>
+
+#include "../defines.h"
+#include "../util.h"
+
+#include "../generated_headers/android_app_NotificationManager.h"
+
+static XdpPortal *portal = NULL;
+
+JNIEXPORT jlong JNICALL Java_android_app_NotificationManager_nativeInitBuilder(JNIEnv *env, jobject this)
+{
+	return _INTPTR(g_variant_builder_new(G_VARIANT_TYPE("aa{sv}")));
+}
+
+static GVariant *serialize_intent(JNIEnv *env, jint type, jstring action_jstr, jstring className_jstr)
+{
+	const char *action = action_jstr ? (*env)->GetStringUTFChars(env, action_jstr, NULL) : NULL;
+	const char *className = className_jstr ? (*env)->GetStringUTFChars(env, className_jstr, NULL) : NULL;
+	GVariant *intent = g_variant_new("(iss)", type, action ?: "", className ?: "");
+	if (action_jstr) (*env)->ReleaseStringUTFChars(env, action_jstr, action);
+	if (className_jstr) (*env)->ReleaseStringUTFChars(env, className_jstr, className);
+	return intent;
+}
+
+JNIEXPORT void JNICALL Java_android_app_NotificationManager_nativeAddAction(JNIEnv *env, jobject this, jlong builder_ptr, jstring name_jstr, jint type, jstring action, jstring className)
+{
+	GVariantBuilder *builder = _PTR(builder_ptr);
+	g_variant_builder_open(builder, G_VARIANT_TYPE("a{sv}"));
+	if (name_jstr) {
+		const char *name = (*env)->GetStringUTFChars(env, name_jstr, NULL);
+		g_variant_builder_add(builder, "{sv}", "label", g_variant_new_string(name));
+		(*env)->ReleaseStringUTFChars(env, name_jstr, name);
+	}
+	g_variant_builder_add(builder, "{sv}", "action", g_variant_new_string("button-action"));
+	g_variant_builder_add(builder, "{sv}", "target", serialize_intent(env, type, action, className));
+	g_variant_builder_close(builder);
+}
+
+static void notification_action_invoked(XdpPortal *portal, gchar *id_str, gchar *action, GVariant *parameter, gpointer user_data)
+{
+	int id = atoi(id_str);
+	int type;
+	const char *actionName;
+	const char *className;
+	GVariant *target;
+	JNIEnv *env = get_jni_env();
+
+	GVariantIter *iter = g_variant_iter_new(parameter);
+	g_variant_iter_next(iter, "v", &target);
+	g_variant_get(target, "(iss)", &type, &actionName, &className);
+	jmethodID notificationActionCallback = _STATIC_METHOD((*env)->FindClass(env, "android/app/NotificationManager"), "notificationActionCallback", "(IILjava/lang/String;Ljava/lang/String;)V");
+	(*env)->CallStaticVoidMethod(env, (*env)->FindClass(env, "android/app/NotificationManager"), notificationActionCallback, id, type, _JSTRING(actionName), _JSTRING(className));
+	g_variant_iter_free(iter);
+	g_variant_unref(target);
+}
+
+// gnome session locks up when we send notification update before last update was processed
+static int callback_pending = 0;
+static void natification_callback(GObject* source_object, GAsyncResult* res, gpointer data)
+{
+	callback_pending = 0;
+}
+
+JNIEXPORT void JNICALL Java_android_app_NotificationManager_nativeShowNotification(JNIEnv *env, jobject this, jlong builder_ptr, jint id, jstring title_jstr, jstring text_jstr, jint type, jstring action, jstring className)
+{
+	if (callback_pending) {
+		return;
+	}
+	if (!portal) {
+		portal = xdp_portal_new();
+		g_signal_connect(portal, "notification-action-invoked", G_CALLBACK(notification_action_invoked), NULL);
+	}
+
+	GVariantBuilder *builder = _PTR(builder_ptr);
+	GVariant *buttons = g_variant_builder_end(builder);
+
+	g_variant_builder_init(builder, G_VARIANT_TYPE("a{sv}"));
+	if (title_jstr) {
+		const char *title = (*env)->GetStringUTFChars(env, title_jstr, NULL);
+		g_variant_builder_add(builder, "{sv}", "title", g_variant_new_string(title));
+		(*env)->ReleaseStringUTFChars(env, title_jstr, title);
+	}
+	if (text_jstr) {
+		const char *text = (*env)->GetStringUTFChars(env, text_jstr, NULL);
+		g_variant_builder_add(builder, "{sv}", "body", g_variant_new_string(text));
+		(*env)->ReleaseStringUTFChars(env, text_jstr, text);
+	}
+	g_variant_builder_add(builder, "{sv}", "default-action", g_variant_new_string("default-action"));
+	g_variant_builder_add(builder, "{sv}", "default-action-target", serialize_intent(env, type, action, className));
+	g_variant_builder_add(builder, "{sv}", "buttons", buttons);
+	GVariant *variant = g_variant_builder_end(builder);
+	g_variant_builder_unref(builder);
+	char *id_string = g_strdup_printf("%d", id);
+	xdp_portal_remove_notification(portal, id_string);
+	callback_pending = 1;
+	xdp_portal_add_notification(portal, id_string, variant, XDP_NOTIFICATION_FLAG_NONE, NULL, natification_callback, NULL);
+	g_free(id_string);
+}

src/api-impl-jni/generated_headers/android_app_NotificationManager.h

@@ -0,0 +1,37 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class android_app_NotificationManager */
+
+#ifndef _Included_android_app_NotificationManager
+#define _Included_android_app_NotificationManager
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     android_app_NotificationManager
+ * Method:    nativeInitBuilder
+ * Signature: ()J
+ */
+JNIEXPORT jlong JNICALL Java_android_app_NotificationManager_nativeInitBuilder
+  (JNIEnv *, jobject);
+
+/*
+ * Class:     android_app_NotificationManager
+ * Method:    nativeAddAction
+ * Signature: (JLjava/lang/String;ILjava/lang/String;Ljava/lang/String;)V
+ */
+JNIEXPORT void JNICALL Java_android_app_NotificationManager_nativeAddAction
+  (JNIEnv *, jobject, jlong, jstring, jint, jstring, jstring);
+
+/*
+ * Class:     android_app_NotificationManager
+ * Method:    nativeShowNotification
+ * Signature: (JILjava/lang/String;Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;)V
+ */
+JNIEXPORT void JNICALL Java_android_app_NotificationManager_nativeShowNotification
+  (JNIEnv *, jobject, jlong, jint, jstring, jstring, jint, jstring, jstring);
+
+#ifdef __cplusplus
+}
+#endif
+#endif