From a2883583435723a378365ce82158da0113ef25d1 Mon Sep 17 00:00:00 2001
From: Fan Zhang <zhfan@google.com>
Date: Wed, 24 Mar 2021 22:20:58 +0000
Subject: [PATCH] Button for opening app from Safety settings page

Bug: 179063896
Test: Manual

Change-Id: I4cf627d630de277ebea3fe551d6799e5589e1af3
---
 res/layout/more_settings_button.xml           |  35 ++++++
 res/xml/emergency_settings.xml                |   7 ++
 .../MoreSettingsPreferenceController.java     | 117 ++++++++++++++++++
 3 files changed, 159 insertions(+)
 create mode 100644 res/layout/more_settings_button.xml
 create mode 100644 src/com/android/settings/emergency/MoreSettingsPreferenceController.java

diff --git a/res/layout/more_settings_button.xml b/res/layout/more_settings_button.xml
new file mode 100644
index 00000000000..4bbe1191108
--- /dev/null
+++ b/res/layout/more_settings_button.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:settings="http://schemas.android.com/apk/res-auto"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:orientation="vertical">
+
+      <Button
+         android:id="@+id/button"
+         android:layout_width="wrap_content"
+         android:layout_height="wrap_content"
+         android:layout_gravity="center_horizontal"
+         android:layout_marginTop="20dip"
+         android:layout_marginBottom="20dip"
+         style="@style/ActionPrimaryButton"
+         settings:allowDividerBelow="true"
+         android:gravity="center" />
+
+</LinearLayout>
diff --git a/res/xml/emergency_settings.xml b/res/xml/emergency_settings.xml
index 28ae8b19c56..80d6ac0ce7e 100644
--- a/res/xml/emergency_settings.xml
+++ b/res/xml/emergency_settings.xml
@@ -32,6 +32,13 @@
         android:order="100"
         android:fragment="com.android.settings.emergency.EmergencyGestureSettings"
         settings:controller="com.android.settings.emergency.EmergencyGestureEntrypointPreferenceController" />
+    <com.android.settingslib.widget.LayoutPreference
+        android:key="more_settings"
+        android:layout="@layout/more_settings_button"
+        android:order="180"
+        android:selectable="false"
+        settings:allowDividerBelow="true"
+        settings:controller="com.android.settings.emergency.MoreSettingsPreferenceController" />
     <com.android.settingslib.RestrictedPreference
         android:key="app_and_notif_cell_broadcast_settings"
         android:title="@string/cell_broadcast_settings"
diff --git a/src/com/android/settings/emergency/MoreSettingsPreferenceController.java b/src/com/android/settings/emergency/MoreSettingsPreferenceController.java
new file mode 100644
index 00000000000..34c11c76780
--- /dev/null
+++ b/src/com/android/settings/emergency/MoreSettingsPreferenceController.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2021 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.emergency;
+
+import static android.content.pm.PackageManager.MATCH_DISABLED_COMPONENTS;
+import static android.content.pm.PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS;
+import static android.content.pm.PackageManager.MATCH_SYSTEM_ONLY;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.widget.LayoutPreference;
+
+import java.util.List;
+
+/**
+ * Preference controller for More settings button
+ */
+public class MoreSettingsPreferenceController extends BasePreferenceController implements
+        View.OnClickListener {
+
+    private static final String EXTRA_KEY_ATTRIBUTION = "attribution";
+    private static final String TAG = "MoreSettingsPrefCtrl";
+    @VisibleForTesting
+    Intent mIntent;
+
+    public MoreSettingsPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+        final String packageName = mContext.getResources().getString(
+                R.string.config_emergency_package_name);
+
+        if (TextUtils.isEmpty(packageName)) {
+            return;
+        }
+        mIntent = new Intent(Intent.ACTION_MAIN)
+                .setPackage(packageName);
+
+        final List<ResolveInfo> info = mContext.getPackageManager()
+                .queryIntentActivities(mIntent, MATCH_SYSTEM_ONLY);
+
+        if (info != null && !info.isEmpty()) {
+            mIntent.setClassName(packageName, info.get(0).activityInfo.name);
+        } else {
+            mIntent = null;
+        }
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        final LayoutPreference pref = screen.findPreference(getPreferenceKey());
+        final Button button = pref.findViewById(R.id.button);
+        button.setText(getButtonText());
+        button.setOnClickListener(this);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        if (mIntent == null) {
+            return UNSUPPORTED_ON_DEVICE;
+        } else {
+            return AVAILABLE;
+        }
+    }
+
+    @Override
+    public void onClick(View v) {
+        final Intent intent = new Intent(mIntent)
+                .addCategory(Intent.CATEGORY_LAUNCHER)
+                .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+        Bundle bundle = new Bundle();
+        bundle.putString(EXTRA_KEY_ATTRIBUTION, mContext.getPackageName());
+        mContext.startActivity(intent, bundle);
+    }
+
+    private CharSequence getButtonText() {
+        final String packageName = mContext.getResources().getString(
+                R.string.config_emergency_package_name);
+        try {
+            final PackageManager pm = mContext.getPackageManager();
+            final ApplicationInfo appInfo = pm.getApplicationInfo(
+                    packageName, MATCH_DISABLED_COMPONENTS
+                            | MATCH_DISABLED_UNTIL_USED_COMPONENTS);
+            return mContext.getString(R.string.open_app_button, appInfo.loadLabel(pm));
+        } catch (Exception e) {
+            Log.d(TAG, "Failed to get open app button text, falling back.");
+            return "";
+        }
+    }
+}