Add controllers for default app shortcut preferences.

- add the default app shortcut preferences to the preference screen
xml instead of creating them dynamically in the fragment.
- add controller for each of the shortcut preference.
- move the corresponding shortcut detail settings into the appinfo
package.
- add individual preference screen xml for the shortcut detail settings
instead of using the shared screen template.

Bug: 69384089
Test: make RunSettingsRoboTests
Change-Id: I7bc0b3b727e87fb1a32a82291e64b8e290947671

src/com/android/settings/applications/appinfo/ExternalSourcesDetails.java

@@ -0,0 +1,141 @@
+/*
+ * 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.appinfo;
+
+import static android.app.Activity.RESULT_CANCELED;
+import static android.app.Activity.RESULT_OK;
+
+import android.app.AlertDialog;
+import android.app.AppOpsManager;
+import android.content.Context;
+import android.os.Bundle;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.Preference.OnPreferenceChangeListener;
+
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settings.R;
+import com.android.settings.Settings;
+import com.android.settings.applications.AppInfoWithHeader;
+import com.android.settings.applications.AppStateInstallAppsBridge;
+import com.android.settings.applications.AppStateInstallAppsBridge.InstallAppsState;
+import com.android.settingslib.RestrictedSwitchPreference;
+import com.android.settingslib.applications.ApplicationsState.AppEntry;
+
+public class ExternalSourcesDetails extends AppInfoWithHeader
+        implements OnPreferenceChangeListener {
+
+    private static final String KEY_EXTERNAL_SOURCE_SWITCH = "external_sources_settings_switch";
+
+    private AppStateInstallAppsBridge mAppBridge;
+    private AppOpsManager mAppOpsManager;
+    private UserManager mUserManager;
+    private RestrictedSwitchPreference mSwitchPref;
+    private InstallAppsState mInstallAppsState;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        final Context context = getActivity();
+        mAppBridge = new AppStateInstallAppsBridge(context, mState, null);
+        mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
+        mUserManager = UserManager.get(context);
+
+        addPreferencesFromResource(R.xml.external_sources_details);
+        mSwitchPref = (RestrictedSwitchPreference) findPreference(KEY_EXTERNAL_SOURCE_SWITCH);
+        mSwitchPref.setOnPreferenceChangeListener(this);
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean checked = (Boolean) newValue;
+        if (preference == mSwitchPref) {
+            if (mInstallAppsState != null && checked != mInstallAppsState.canInstallApps()) {
+                if (Settings.ManageAppExternalSourcesActivity.class.getName().equals(
+                        getIntent().getComponent().getClassName())) {
+                    setResult(checked ? RESULT_OK : RESULT_CANCELED);
+                }
+                setCanInstallApps(checked);
+                refreshUi();
+            }
+            return true;
+        }
+        return false;
+    }
+
+    public static CharSequence getPreferenceSummary(Context context, AppEntry entry) {
+        final UserManager um = UserManager.get(context);
+        final int userRestrictionSource = um.getUserRestrictionSource(
+                UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES,
+                UserHandle.getUserHandleForUid(entry.info.uid));
+        switch (userRestrictionSource) {
+            case UserManager.RESTRICTION_SOURCE_DEVICE_OWNER:
+            case UserManager.RESTRICTION_SOURCE_PROFILE_OWNER:
+                return context.getString(R.string.disabled_by_admin);
+            case UserManager.RESTRICTION_SOURCE_SYSTEM:
+                return context.getString(R.string.disabled);
+        }
+
+        final InstallAppsState appsState = new AppStateInstallAppsBridge(context, null, null)
+                .createInstallAppsStateFor(entry.info.packageName, entry.info.uid);
+
+        return context.getString(appsState.canInstallApps()
+                ? R.string.app_permission_summary_allowed
+                : R.string.app_permission_summary_not_allowed);
+    }
+
+    private void setCanInstallApps(boolean newState) {
+        mAppOpsManager.setMode(AppOpsManager.OP_REQUEST_INSTALL_PACKAGES,
+                mPackageInfo.applicationInfo.uid, mPackageName,
+                newState ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_ERRORED);
+    }
+
+    @Override
+    protected boolean refreshUi() {
+        if (mUserManager.hasBaseUserRestriction(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES,
+                UserHandle.of(UserHandle.myUserId()))) {
+            mSwitchPref.setChecked(false);
+            mSwitchPref.setSummary(R.string.disabled);
+            mSwitchPref.setEnabled(false);
+            return true;
+        }
+        mSwitchPref.checkRestrictionAndSetDisabled(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES);
+        if (mSwitchPref.isDisabledByAdmin()) {
+            return true;
+        }
+        mInstallAppsState = mAppBridge.createInstallAppsStateFor(mPackageName,
+                mPackageInfo.applicationInfo.uid);
+        if (!mInstallAppsState.isPotentialAppSource()) {
+            // Invalid app entry. Should not allow changing permission
+            mSwitchPref.setEnabled(false);
+            return true;
+        }
+        mSwitchPref.setChecked(mInstallAppsState.canInstallApps());
+        return true;
+    }
+
+    @Override
+    protected AlertDialog createDialog(int id, int errorCode) {
+        return null;
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsEvent.MANAGE_EXTERNAL_SOURCES;
+    }
+}