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/*
* Copyright (C) 2016 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.dialer.app.voicemail;
import android.content.Context;
import android.database.ContentObserver;
import android.database.Cursor;
import android.os.Handler;
import com.android.dialer.app.calllog.CallLogAlertManager;
import com.android.dialer.app.calllog.CallLogModalAlertManager;
import com.android.dialer.app.voicemail.error.VoicemailErrorAlert;
import com.android.dialer.app.voicemail.error.VoicemailErrorMessageCreator;
import com.android.dialer.app.voicemail.error.VoicemailStatus;
import com.android.dialer.app.voicemail.error.VoicemailStatusReader;
import com.android.dialer.database.CallLogQueryHandler;
import java.util.ArrayList;
import java.util.List;
/**
* Fetches voicemail status and generate {@link VoicemailStatus} for {@link VoicemailErrorAlert} to
* show.
*/
public class VoicemailErrorManager implements CallLogQueryHandler.Listener, VoicemailStatusReader {
private final Context context;
private final CallLogQueryHandler callLogQueryHandler;
private final VoicemailErrorAlert alertItem;
private final ContentObserver statusObserver =
new ContentObserver(new Handler()) {
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
maybeFetchStatus();
}
};
private boolean isForeground;
private boolean statusInvalidated;
public VoicemailErrorManager(
Context context,
CallLogAlertManager alertManager,
CallLogModalAlertManager modalAlertManager) {
this.context = context;
alertItem =
new VoicemailErrorAlert(
context, alertManager, modalAlertManager, new VoicemailErrorMessageCreator());
callLogQueryHandler = new CallLogQueryHandler(context, context.getContentResolver(), this);
maybeFetchStatus();
}
public ContentObserver getContentObserver() {
return statusObserver;
}
@Override
public void onVoicemailStatusFetched(Cursor statusCursor) {
List<VoicemailStatus> statuses = new ArrayList<>();
while (statusCursor.moveToNext()) {
VoicemailStatus status = new VoicemailStatus(context, statusCursor);
if (status.isActive()) {
statuses.add(status);
}
}
alertItem.updateStatus(statuses, this);
// TODO: b/30668323 support error from multiple sources.
return;
}
@Override
public void onVoicemailUnreadCountFetched(Cursor cursor) {
// Do nothing
}
@Override
public void onMissedCallsUnreadCountFetched(Cursor cursor) {
// Do nothing
}
@Override
public boolean onCallsFetched(Cursor combinedCursor) {
// Do nothing
return false;
}
public void onResume() {
isForeground = true;
if (statusInvalidated) {
maybeFetchStatus();
}
}
public void onPause() {
isForeground = false;
statusInvalidated = false;
}
@Override
public void refresh() {
maybeFetchStatus();
}
/**
* Fetch the status when the dialer is in foreground, or queue a fetch when the dialer resumes.
*/
private void maybeFetchStatus() {
if (!isForeground) {
// Dialer is in the background, UI should not be updated. Reload the status when it resumes.
statusInvalidated = true;
return;
}
callLogQueryHandler.fetchVoicemailStatus();
}
}
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