Replaced auto-fill by autofill to keep it consistent with API style.

To keep backward compatibility, it looks for the new service (AutofillService),
then falls back to the old one (AutoFillService) if not found.

Bug: 35956626
Bug: 36024626
Test: manual verification with a custom service
Test: RunSettingsRoboTests passes

Change-Id: I64112ac5d796e94866e632ec8ea79a3fb13e3d9b

src/com/android/settings/applications/defaultapps/DefaultAutofillPicker.java

@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2017 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.applications.defaultapps;
+
+import android.content.ComponentName;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.content.pm.ServiceInfo;
+import android.provider.Settings;
+import android.service.autofill.AutoFillService;
+import android.service.autofill.AutofillService;
+import android.service.autofill.AutofillServiceInfo;
+import android.text.TextUtils;
+
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.settings.R;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class DefaultAutofillPicker extends DefaultAppPickerFragment {
+
+    static final String SETTING = Settings.Secure.AUTOFILL_SERVICE;
+    // TODO(b/35956626): remove once clients migrated
+    static final Intent OLD_AUTO_FILL_PROBE = new Intent(AutoFillService.OLD_SERVICE_INTERFACE);
+    static final Intent AUTOFILL_PROBE = new Intent(AutofillService.SERVICE_INTERFACE);
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsProto.MetricsEvent.DEFAULT_AUTOFILL_PICKER;
+    }
+
+    @Override
+    protected boolean shouldShowItemNone() {
+        return true;
+    }
+
+    @Override
+    protected List<DefaultAppInfo> getCandidates() {
+        final List<DefaultAppInfo> candidates = new ArrayList<>();
+        final List<ResolveInfo> resolveInfos = mPm.getPackageManager()
+                .queryIntentServices(AUTOFILL_PROBE, PackageManager.GET_META_DATA);
+        for (ResolveInfo info : resolveInfos) {
+            candidates.add(new DefaultAppInfo(mUserId, new ComponentName(
+                    info.serviceInfo.packageName, info.serviceInfo.name)));
+        }
+        final List<ResolveInfo> oldResolveInfos = mPm.getPackageManager()
+                .queryIntentServices(OLD_AUTO_FILL_PROBE, PackageManager.GET_META_DATA);
+        for (ResolveInfo info : oldResolveInfos) {
+            candidates.add(new DefaultAppInfo(mUserId, new ComponentName(
+                    info.serviceInfo.packageName, info.serviceInfo.name)));
+        }
+        return candidates;
+    }
+
+    @Override
+    protected String getDefaultAppKey() {
+        return Settings.Secure.getString(getContext().getContentResolver(), SETTING);
+    }
+
+    @Override
+    protected String getConfirmationMessage(DefaultAppInfo appInfo) {
+        if (appInfo == null) {
+            return null;
+        }
+        final CharSequence appName = appInfo.loadLabel(mPm.getPackageManager());
+        return getContext().getString(R.string.autofill_confirmation_message, appName);
+    }
+
+    @Override
+    protected boolean setDefaultAppKey(String key) {
+        Settings.Secure.putString(getContext().getContentResolver(), SETTING, key);
+        return true;
+    }
+
+    /**
+     * Provides Intent to setting activity for the specified auto-fill service.
+     */
+    static final class AutofillSettingIntentProvider implements SettingIntentProvider {
+
+        private final String mSelectedKey;
+        private final PackageManager mPackageManager;
+
+        public AutofillSettingIntentProvider(PackageManager packageManager, String key) {
+            mSelectedKey = key;
+            mPackageManager = packageManager;
+        }
+
+        @Override
+        public Intent getIntent() {
+            final List<ResolveInfo> resolveInfos = mPackageManager.queryIntentServices(
+                    AUTOFILL_PROBE, PackageManager.GET_META_DATA);
+
+            for (ResolveInfo resolveInfo : resolveInfos) {
+                final ServiceInfo serviceInfo = resolveInfo.serviceInfo;
+                final String flattenKey = new ComponentName(
+                        serviceInfo.packageName, serviceInfo.name).flattenToString();
+                if (TextUtils.equals(mSelectedKey, flattenKey)) {
+                    final String settingsActivity = new AutofillServiceInfo(
+                            mPackageManager, serviceInfo)
+                            .getSettingsActivity();
+                    if (TextUtils.isEmpty(settingsActivity)) {
+                        return null;
+                    }
+                    return new Intent(Intent.ACTION_MAIN).setComponent(
+                            new ComponentName(serviceInfo.packageName, settingsActivity));
+                }
+            }
+
+            final List<ResolveInfo> oldResolveInfos = mPackageManager.queryIntentServices(
+                    OLD_AUTO_FILL_PROBE, PackageManager.GET_META_DATA);
+
+            for (ResolveInfo resolveInfo : oldResolveInfos) {
+                final ServiceInfo serviceInfo = resolveInfo.serviceInfo;
+                final String flattenKey = new ComponentName(
+                        serviceInfo.packageName, serviceInfo.name).flattenToString();
+                if (TextUtils.equals(mSelectedKey, flattenKey)) {
+                    final String settingsActivity = new AutofillServiceInfo(
+                            mPackageManager, serviceInfo)
+                            .getSettingsActivity();
+                    if (TextUtils.isEmpty(settingsActivity)) {
+                        return null;
+                    }
+                    return new Intent(Intent.ACTION_MAIN).setComponent(
+                            new ComponentName(serviceInfo.packageName, settingsActivity));
+                }
+            }
+            return null;
+        }
+    }
+}