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/*
* Copyright (C) 2011 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.inputmethod.latin;
import com.android.inputmethod.dictionarypack.UpdateHandler;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ProviderInfo;
import android.net.Uri;
/**
* Takes action to reload the necessary data when a dictionary pack was added/removed.
*/
public final class DictionaryPackInstallBroadcastReceiver extends BroadcastReceiver {
final LatinIME mService;
/**
* The action of the intent for publishing that new dictionary data is available.
*/
/* package */ static final String NEW_DICTIONARY_INTENT_ACTION =
UpdateHandler.NEW_DICTIONARY_INTENT_ACTION;
public DictionaryPackInstallBroadcastReceiver(final LatinIME service) {
mService = service;
}
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
final PackageManager manager = context.getPackageManager();
// We need to reread the dictionary if a new dictionary package is installed.
if (action.equals(Intent.ACTION_PACKAGE_ADDED)) {
final Uri packageUri = intent.getData();
if (null == packageUri) return; // No package name : we can't do anything
final String packageName = packageUri.getSchemeSpecificPart();
if (null == packageName) return;
// TODO: do this in a more appropriate place
TargetApplicationGetter.removeApplicationInfoCache(packageName);
final PackageInfo packageInfo;
try {
packageInfo = manager.getPackageInfo(packageName, PackageManager.GET_PROVIDERS);
} catch (android.content.pm.PackageManager.NameNotFoundException e) {
return; // No package info : we can't do anything
}
final ProviderInfo[] providers = packageInfo.providers;
if (null == providers) return; // No providers : it is not a dictionary.
// Search for some dictionary pack in the just-installed package. If found, reread.
for (ProviderInfo info : providers) {
if (BinaryDictionary.DICTIONARY_PACK_AUTHORITY.equals(info.authority)) {
mService.resetSuggestMainDict();
return;
}
}
// If we come here none of the authorities matched the one we searched for.
// We can exit safely.
return;
} else if (action.equals(Intent.ACTION_PACKAGE_REMOVED)
&& !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) {
// When the dictionary package is removed, we need to reread dictionary (to use the
// next-priority one, or stop using a dictionary at all if this was the only one,
// since this is the user request).
// If we are replacing the package, we will receive ADDED right away so no need to
// remove the dictionary at the moment, since we will do it when we receive the
// ADDED broadcast.
// TODO: Only reload dictionary on REMOVED when the removed package is the one we
// read dictionary from?
mService.resetSuggestMainDict();
} else if (action.equals(NEW_DICTIONARY_INTENT_ACTION)) {
mService.resetSuggestMainDict();
}
}
}
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