Add option for settings to push to a device index

The index implementation is optional and left up to the OEM.

Test: Open settings, see content in index
Test: robo tests
Bug: 68378569
Bug: 76102600
Change-Id: Idb8bb1e0cabbbe92e7a852e2eadbdcd8c2ab7d56

src/com/android/settings/slices/SliceDeepLinkSpringBoard.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * 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 com.android.settings.slices;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.Log;
+
+import java.net.URISyntaxException;
+
+public class SliceDeepLinkSpringBoard extends Activity {
+
+    private static final String TAG = "DeeplinkSpringboard";
+    public static final String INTENT = "intent";
+    public static final String SETTINGS = "settings";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        Uri uri = getIntent().getData();
+        if (uri == null) {
+            Log.e(TAG, "No data found");
+            finish();
+            return;
+        }
+        try {
+            Intent intent = parse(uri, getPackageName());
+            startActivity(intent);
+            finish();
+        } catch (URISyntaxException e) {
+            Log.e(TAG, "Error decoding uri", e);
+            finish();
+        }
+    }
+
+    public static Intent parse(Uri uri, String pkg) throws URISyntaxException {
+        Intent intent = Intent.parseUri(uri.getQueryParameter(INTENT),
+                Intent.URI_ANDROID_APP_SCHEME);
+        // Start with some really strict constraints and loosen them if we need to.
+        // Don't allow components.
+        intent.setComponent(null);
+        // Clear out the extras.
+        if (intent.getExtras() != null) {
+            intent.getExtras().clear();
+        }
+        // Make sure this points at Settings.
+        intent.setPackage(pkg);
+        return intent;
+    }
+}