package/flutter-packages/flutter-rfw-local-example: new package

Displays a custom "Hello, World!" custom widget in a
remote Flutter widget (RFW) for use by a remote widget.

Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>

DEVELOPERS

@@ -40,6 +40,7 @@ F:	package/flutter-packages/flutter-dynamic-layouts-example/
 F:	package/flutter-packages/flutter-go-router-example/
 F:	package/flutter-packages/flutter-image-example/
 F:	package/flutter-packages/flutter-markdown-example/
+F:	package/flutter-packages/flutter-rfw-local-example/
 F:	package/flutter-pi/
 F:	package/flutter-sdk-bin/
 F:	package/ivi-homescreen/

package/flutter-packages/Config.in

@@ -13,6 +13,7 @@ source "package/flutter-packages/flutter-dynamic-layouts-example/Config.in"
 source "package/flutter-packages/flutter-go-router-example/Config.in"
 source "package/flutter-packages/flutter-image-example/Config.in"
 source "package/flutter-packages/flutter-markdown-example/Config.in"
+source "package/flutter-packages/flutter-rfw-local-example/Config.in"
 endif
 
 comment "flutter packages need flutter-engine"

package/flutter-packages/flutter-rfw-local-example/Config.in

@@ -0,0 +1,7 @@
+config BR2_PACKAGE_FLUTTER_RFW_LOCAL_EXAMPLE
+	bool "remote flutter widgets example"
+	help
+	  This example shows how one can create custom widgets in an RFW
+	  client, for use by remote widgets.
+
+	  https://github.com/flutter/packages/tree/main/packages/rfw/example/local

package/flutter-packages/flutter-rfw-local-example/flutter-rfw-local-example.hash

@@ -0,0 +1 @@
+../flutter-packages.hash

package/flutter-packages/flutter-rfw-local-example/flutter-rfw-local-example.mk

@@ -0,0 +1,54 @@
+################################################################################
+#
+# flutter-rfw-local-example
+#
+################################################################################
+
+FLUTTER_RFW_LOCAL_EXAMPLE_VERSION = $(FLUTTER_PACKAGES_VERSION)
+FLUTTER_RFW_LOCAL_EXAMPLE_SITE = $(FLUTTER_PACKAGES_SITE)
+FLUTTER_RFW_LOCAL_EXAMPLE_SITE_METHOD = $(FLUTTER_PACKAGES_SITE_METHOD)
+FLUTTER_RFW_LOCAL_EXAMPLE_SOURCE = $(FLUTTER_PACKAGES_SOURCE)
+FLUTTER_RFW_LOCAL_EXAMPLE_LICENSE = $(FLUTTER_PACKAGES_LICENSE)
+FLUTTER_RFW_LOCAL_EXAMPLE_LICENSE_FILES = $(FLUTTER_PACKAGES_LICENSE_FILES)
+FLUTTER_RFW_LOCAL_EXAMPLE_DL_SUBDIR = $(FLUTTER_PACKAGES_DL_SUBDIR)
+FLUTTER_RFW_LOCAL_EXAMPLE_DEPENDENCIES = $(FLUTTER_PACKAGES_DEPENDENCIES)
+FLUTTER_RFW_LOCAL_EXAMPLE_PKG_NAME = local
+FLUTTER_RFW_LOCAL_EXAMPLE_INSTALL_DIR = $(TARGET_DIR)/usr/share/flutter/rfw-$(FLUTTER_RFW_LOCAL_EXAMPLE_PKG_NAME)-example/$(FLUTTER_ENGINE_RUNTIME_MODE)
+FLUTTER_RFW_LOCAL_EXAMPLE_SUBDIR = packages/rfw/example/local
+
+define FLUTTER_RFW_LOCAL_EXAMPLE_CONFIGURE_CMDS
+	cd $(FLUTTER_RFW_LOCAL_EXAMPLE_BUILDDIR) && \
+		$(HOST_FLUTTER_SDK_BIN_FLUTTER) clean && \
+		$(HOST_FLUTTER_SDK_BIN_FLUTTER) pub get && \
+		$(HOST_FLUTTER_SDK_BIN_FLUTTER) build bundle
+endef
+
+define FLUTTER_RFW_LOCAL_EXAMPLE_BUILD_CMDS
+	cd $(FLUTTER_RFW_LOCAL_EXAMPLE_BUILDDIR) && \
+		$(HOST_FLUTTER_SDK_BIN_DART_BIN) \
+			--native-assets $(FLUTTER_RFW_LOCAL_EXAMPLE_BUILDDIR)/.dart_tool/flutter_build/*/native_assets.yaml \
+			package:$(FLUTTER_RFW_LOCAL_EXAMPLE_PKG_NAME)/main.dart && \
+		$(HOST_FLUTTER_SDK_BIN_ENV) $(FLUTTER_ENGINE_GEN_SNAPSHOT) \
+			--deterministic \
+			--obfuscate \
+			--snapshot_kind=app-aot-elf \
+			--elf=libapp.so \
+			.dart_tool/flutter_build/*/app.dill
+endef
+
+define FLUTTER_RFW_LOCAL_EXAMPLE_INSTALL_TARGET_CMDS
+	mkdir -p $(FLUTTER_RFW_LOCAL_EXAMPLE_INSTALL_DIR)/{data,lib}
+	cp -dprf $(FLUTTER_RFW_LOCAL_EXAMPLE_BUILDDIR)/build/flutter_assets $(FLUTTER_RFW_LOCAL_EXAMPLE_INSTALL_DIR)/data/
+
+	$(INSTALL) -D -m 0755 $(FLUTTER_RFW_LOCAL_EXAMPLE_BUILDDIR)/libapp.so \
+		$(FLUTTER_RFW_LOCAL_EXAMPLE_INSTALL_DIR)/lib/libapp.so
+
+	ln -sf /usr/share/flutter/$(FLUTTER_ENGINE_RUNTIME_MODE)/data/icudtl.dat \
+	$(FLUTTER_RFW_LOCAL_EXAMPLE_INSTALL_DIR)/data/
+
+	ln -sf /usr/lib/libflutter_engine.so $(FLUTTER_RFW_LOCAL_EXAMPLE_INSTALL_DIR)/lib/
+	$(RM) $(FLUTTER_RFW_LOCAL_EXAMPLE_INSTALL_DIR)/data/flutter_assets/kernel_blob.bin
+	touch $(FLUTTER_RFW_LOCAL_EXAMPLE_INSTALL_DIR)/data/flutter_assets/kernel_blob.bin
+endef
+
+$(eval $(generic-package))