[modular-examples] Add example mod to test elevation handling.
Test=Manually tested.
Change-Id: Iaaf382174a829530f5eb8e5ee9a248e3eac0e64a
diff --git a/examples/modular/multilevel_mod/BUILD.gn b/examples/modular/multilevel_mod/BUILD.gn
new file mode 100644
index 0000000..f9a9e72
--- /dev/null
+++ b/examples/modular/multilevel_mod/BUILD.gn
@@ -0,0 +1,28 @@
+# Copyright 2018 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//topaz/runtime/flutter_runner/flutter_app.gni")
+
+flutter_app("multilevel_mod") {
+ package_name = "multilevel_mod"
+ main_dart = "lib/main.dart"
+
+ fuchsia_package_name = "multilevel_mod"
+
+ meta = [
+ {
+ path = rebase_path("meta/multilevel_mod.cmx")
+ dest = "multilevel_mod.cmx"
+ },
+ ]
+
+ sources = [
+ "src/handlers/root_intent_handler.dart",
+ ]
+
+ deps = [
+ "//third_party/dart-pkg/git/flutter/packages/flutter",
+ "//topaz/public/dart/fuchsia_modular",
+ ]
+}
diff --git a/examples/modular/multilevel_mod/README.md b/examples/modular/multilevel_mod/README.md
new file mode 100644
index 0000000..8a06d5d
--- /dev/null
+++ b/examples/modular/multilevel_mod/README.md
@@ -0,0 +1 @@
+A simple mod to demonstrate mod elevation handling.
\ No newline at end of file
diff --git a/examples/modular/multilevel_mod/analysis_options.yaml b/examples/modular/multilevel_mod/analysis_options.yaml
new file mode 100644
index 0000000..f0cea8a
--- /dev/null
+++ b/examples/modular/multilevel_mod/analysis_options.yaml
@@ -0,0 +1,5 @@
+# Copyright 2018 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+include: ../../../tools/analysis_options.yaml
diff --git a/examples/modular/multilevel_mod/lib/main.dart b/examples/modular/multilevel_mod/lib/main.dart
new file mode 100644
index 0000000..0bd9792
--- /dev/null
+++ b/examples/modular/multilevel_mod/lib/main.dart
@@ -0,0 +1,10 @@
+// Copyright 2018 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:fuchsia_modular/module.dart';
+import 'src/handlers/root_intent_handler.dart';
+
+void main() {
+ Module().registerIntentHandler(RootIntentHandler());
+}
diff --git a/examples/modular/multilevel_mod/lib/src/handlers/root_intent_handler.dart b/examples/modular/multilevel_mod/lib/src/handlers/root_intent_handler.dart
new file mode 100644
index 0000000..4297cb0
--- /dev/null
+++ b/examples/modular/multilevel_mod/lib/src/handlers/root_intent_handler.dart
@@ -0,0 +1,70 @@
+// Copyright 2018 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+import 'package:fuchsia_modular/module.dart';
+
+const List<Color> _colors = const <Color>[
+ Colors.red,
+ Colors.orange,
+ Colors.yellow,
+ Colors.green,
+ Colors.blue,
+ Colors.indigo,
+ Colors.purple,
+];
+const double _elevationMultiplier = 6;
+const int _numTotalLayers = 7;
+const double _sizeMultiplier = 60;
+
+class RootIntentHandler extends IntentHandler {
+ @override
+ void handleIntent(Intent intent) {
+ // Note that this mod does not care about intent.
+ runApp(
+ MaterialApp(
+ title: 'Multilevel Mod',
+ home: Scaffold(
+ backgroundColor: Colors.black54,
+ body: Center(
+ child: Stack(
+ alignment: const Alignment(0.0, 0.0),
+ children: _createLayers(_numTotalLayers)),
+ ),
+ ),
+ ),
+ );
+ }
+
+ // Helper function to create list of concentric Material widgets.
+ List<Widget> _createLayers(int totalLayers) {
+ var layers = <Widget>[];
+ for (var i = 0; i < totalLayers; i++) {
+ // Elevation in descending order to demonstrate how flutter renders in
+ // elevation, not stack order.
+ double elevation =
+ (totalLayers * _elevationMultiplier) - (i * _elevationMultiplier);
+ Color color = _colors[i % _colors.length];
+ double sideLength = (i + 1).toDouble() * _sizeMultiplier;
+ layers.add(_makeLayer(elevation, color, sideLength, sideLength));
+ }
+ return layers;
+ }
+
+ // Helper function to create Material layer with specified elevation, color,
+ // and size. Includes text describing the elevation of the material.
+ Widget _makeLayer(
+ double elevation, Color color, double height, double width) {
+ return Material(
+ elevation: elevation,
+ child: Container(
+ color: color,
+ height: height,
+ width: width,
+ child: Text((elevation).toString(),
+ style: TextStyle(fontWeight: FontWeight.bold)),
+ ),
+ );
+ }
+}
diff --git a/examples/modular/multilevel_mod/meta/multilevel_mod.cmx b/examples/modular/multilevel_mod/meta/multilevel_mod.cmx
new file mode 100644
index 0000000..dd46ace
--- /dev/null
+++ b/examples/modular/multilevel_mod/meta/multilevel_mod.cmx
@@ -0,0 +1,22 @@
+{
+ "program": {
+ "data": "data/multilevel_mod"
+ },
+ "sandbox": {
+ "services": [
+ "fuchsia.cobalt.LoggerFactory",
+ "fuchsia.fonts.Provider",
+ "fuchsia.logger.LogSink",
+ "fuchsia.modular.Clipboard",
+ "fuchsia.modular.ContextWriter",
+ "fuchsia.modular.ModuleContext",
+ "fuchsia.netstack.Netstack",
+ "fuchsia.sys.Environment",
+ "fuchsia.ui.input.ImeService",
+ "fuchsia.ui.policy.Presenter",
+ "fuchsia.ui.scenic.Scenic",
+ "fuchsia.ui.viewsv1.ViewManager",
+ "fuchsia.wlan.service.Wlan"
+ ]
+ }
+}
\ No newline at end of file
diff --git a/examples/modular/multilevel_mod/pubspec.yaml b/examples/modular/multilevel_mod/pubspec.yaml
new file mode 100644
index 0000000..de784fc
--- /dev/null
+++ b/examples/modular/multilevel_mod/pubspec.yaml
@@ -0,0 +1,3 @@
+# Copyright 2018 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
diff --git a/packages/examples/modular b/packages/examples/modular
index 2a2b498..56daa1f 100644
--- a/packages/examples/modular
+++ b/packages/examples/modular
@@ -1,6 +1,7 @@
{
"packages": [
"//topaz/examples/modular/fibonacci_agent",
+ "//topaz/examples/modular/multilevel_mod",
"//topaz/examples/modular/shapes_mod",
"//topaz/examples/modular/slider_mod"
]
