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/*
* Copyright (C) 2015 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.vpn2;
import android.app.AppGlobals;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.drawable.Drawable;
import android.os.RemoteException;
import android.os.UserHandle;
import android.preference.Preference;
import android.view.View.OnClickListener;
import com.android.internal.net.LegacyVpnInfo;
import com.android.internal.net.VpnConfig;
import com.android.settings.R;
/**
* {@link android.preference.Preference} containing information about a VPN
* application. Tracks the package name and connection state.
*/
public class AppPreference extends ManageablePreference {
public static final int STATE_CONNECTED = LegacyVpnInfo.STATE_CONNECTED;
public static final int STATE_DISCONNECTED = LegacyVpnInfo.STATE_DISCONNECTED;
private int mState = STATE_DISCONNECTED;
private String mPackageName;
private String mName;
private int mUid;
public AppPreference(Context context, OnClickListener onManage, final String packageName,
int uid) {
super(context, null /* attrs */, onManage);
mPackageName = packageName;
mUid = uid;
update();
}
public PackageInfo getPackageInfo() {
UserHandle user = new UserHandle(UserHandle.getUserId(mUid));
try {
PackageManager pm = getUserContext().getPackageManager();
return pm.getPackageInfo(mPackageName, 0 /* flags */);
} catch (PackageManager.NameNotFoundException nnfe) {
return null;
}
}
public String getLabel() {
return mName;
}
public String getPackageName() {
return mPackageName;
}
public int getUid() {
return mUid;
}
public int getState() {
return mState;
}
public void setState(int state) {
mState = state;
update();
}
private void update() {
final String[] states = getContext().getResources().getStringArray(R.array.vpn_states);
setSummary(mState != STATE_DISCONNECTED ? states[mState] : "");
mName = mPackageName;
Drawable icon = null;
try {
// Make all calls to the package manager as the appropriate user.
Context userContext = getUserContext();
PackageManager pm = userContext.getPackageManager();
// Fetch icon and VPN label- the nested catch block is for the case that the app doesn't
// exist, in which case we can fall back to the default activity icon for an activity in
// that user.
try {
PackageInfo pkgInfo = pm.getPackageInfo(mPackageName, 0 /* flags */);
if (pkgInfo != null) {
icon = pkgInfo.applicationInfo.loadIcon(pm);
mName = VpnConfig.getVpnLabel(userContext, mPackageName).toString();
}
} catch (PackageManager.NameNotFoundException pkgNotFound) {
// Use default app label and icon as fallback
}
if (icon == null) {
icon = pm.getDefaultActivityIcon();
}
} catch (PackageManager.NameNotFoundException userNotFound) {
// No user, no useful information to obtain. Quietly fail.
}
setTitle(mName);
setIcon(icon);
notifyHierarchyChanged();
}
private Context getUserContext() throws PackageManager.NameNotFoundException {
UserHandle user = new UserHandle(UserHandle.getUserId(mUid));
return getContext().createPackageContextAsUser(
getContext().getPackageName(), 0 /* flags */, user);
}
public int compareTo(Preference preference) {
if (preference instanceof AppPreference) {
AppPreference another = (AppPreference) preference;
int result;
if ((result = another.mState - mState) == 0 &&
(result = mName.compareToIgnoreCase(another.mName)) == 0 &&
(result = mPackageName.compareTo(another.mPackageName)) == 0) {
result = mUid - another.mUid;
}
return result;
} else if (preference instanceof ConfigPreference) {
// Use comparator from ConfigPreference
ConfigPreference another = (ConfigPreference) preference;
return -another.compareTo(this);
} else {
return super.compareTo(preference);
}
}
}
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