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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.messaging.ui;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.SystemClock;
import android.provider.Settings;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
import com.android.messaging.Factory;
import com.android.messaging.R;
import com.android.messaging.util.OsUtil;
import com.android.messaging.util.UiUtils;
/**
* Activity to check if the user has required permissions. If not, it will try to prompt the user
* to grant permissions. However, the OS may not actually prompt the user if the user had
* previously checked the "Never ask again" checkbox while denying the required permissions.
*/
public class PermissionCheckActivity extends Activity {
private static final int REQUIRED_PERMISSIONS_REQUEST_CODE = 1;
private static final long AUTOMATED_RESULT_THRESHOLD_MILLLIS = 250;
private static final String PACKAGE_URI_PREFIX = "package:";
private long mRequestTimeMillis;
private TextView mNextView;
private TextView mSettingsView;
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (redirectIfNeeded()) {
return;
}
setContentView(R.layout.permission_check_activity);
UiUtils.setStatusBarColor(this, getColor(R.color.permission_check_activity_background));
findViewById(R.id.exit).setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View view) {
finish();
}
});
mNextView = (TextView) findViewById(R.id.next);
mNextView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View view) {
tryRequestPermission();
}
});
mSettingsView = (TextView) findViewById(R.id.settings);
mSettingsView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View view) {
final Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
Uri.parse(PACKAGE_URI_PREFIX + getPackageName()));
startActivity(intent);
}
});
}
@Override
public void onResume() {
super.onResume();
if (redirectIfNeeded()) {
return;
}
}
private void tryRequestPermission() {
final String[] missingPermissions = OsUtil.getMissingRequiredPermissions();
if (missingPermissions.length == 0) {
redirect();
return;
}
mRequestTimeMillis = SystemClock.elapsedRealtime();
requestPermissions(missingPermissions, REQUIRED_PERMISSIONS_REQUEST_CODE);
}
@Override
public void onRequestPermissionsResult(
final int requestCode, final String permissions[], final int[] grantResults) {
if (requestCode == REQUIRED_PERMISSIONS_REQUEST_CODE) {
// We do not use grantResults as some of the granted permissions might have been
// revoked while the permissions dialog box was being shown for the missing permissions.
if (OsUtil.hasRequiredPermissions()) {
Factory.get().onRequiredPermissionsAcquired();
redirect();
} else {
final long currentTimeMillis = SystemClock.elapsedRealtime();
// If the permission request completes very quickly, it must be because the system
// automatically denied. This can happen if the user had previously denied it
// and checked the "Never ask again" check box.
if ((currentTimeMillis - mRequestTimeMillis) < AUTOMATED_RESULT_THRESHOLD_MILLLIS) {
mNextView.setVisibility(View.GONE);
mSettingsView.setVisibility(View.VISIBLE);
findViewById(R.id.enable_permission_procedure).setVisibility(View.VISIBLE);
}
}
}
}
/** Returns true if the redirecting was performed */
private boolean redirectIfNeeded() {
if (!OsUtil.hasRequiredPermissions()) {
return false;
}
redirect();
return true;
}
private void redirect() {
UIIntents.get().launchConversationListActivity(this);
finish();
}
}
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