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/*
* Copyright (C) 2010 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.contacts.common.list;
import android.content.AsyncTaskLoader;
import android.content.Context;
import android.content.pm.PackageManager;
import android.database.ContentObserver;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;
import android.os.Handler;
import android.provider.ContactsContract.Directory;
import android.text.TextUtils;
import com.android.contacts.common.R;
import com.android.contacts.common.compat.DirectoryCompat;
import com.android.dialer.common.LogUtil;
import com.android.dialer.util.PermissionsUtil;
/** A specialized loader for the list of directories, see {@link Directory}. */
public class DirectoryListLoader extends AsyncTaskLoader<Cursor> {
public static final int SEARCH_MODE_NONE = 0;
public static final int SEARCH_MODE_DEFAULT = 1;
public static final int SEARCH_MODE_CONTACT_SHORTCUT = 2;
public static final int SEARCH_MODE_DATA_SHORTCUT = 3;
// This is a virtual column created for a MatrixCursor.
public static final String DIRECTORY_TYPE = "directoryType";
private static final String[] RESULT_PROJECTION = {
Directory._ID, DIRECTORY_TYPE, Directory.DISPLAY_NAME, Directory.PHOTO_SUPPORT,
};
private final ContentObserver mObserver =
new ContentObserver(new Handler()) {
@Override
public void onChange(boolean selfChange) {
forceLoad();
}
};
private int mDirectorySearchMode;
private boolean mLocalInvisibleDirectoryEnabled;
private MatrixCursor mDefaultDirectoryList;
public DirectoryListLoader(Context context) {
super(context);
}
public void setDirectorySearchMode(int mode) {
mDirectorySearchMode = mode;
}
/**
* A flag that indicates whether the {@link Directory#LOCAL_INVISIBLE} directory should be
* included in the results.
*/
public void setLocalInvisibleDirectoryEnabled(boolean flag) {
this.mLocalInvisibleDirectoryEnabled = flag;
}
@Override
protected void onStartLoading() {
if (PermissionsUtil.hasContactsReadPermissions(getContext())) {
getContext()
.getContentResolver()
.registerContentObserver(DirectoryQuery.URI, false, mObserver);
} else {
LogUtil.w("DirectoryListLoader.onStartLoading", "contacts permission not available.");
}
forceLoad();
}
@Override
protected void onStopLoading() {
getContext().getContentResolver().unregisterContentObserver(mObserver);
}
@Override
public Cursor loadInBackground() {
if (mDirectorySearchMode == SEARCH_MODE_NONE) {
return getDefaultDirectories();
}
MatrixCursor result = new MatrixCursor(RESULT_PROJECTION);
Context context = getContext();
PackageManager pm = context.getPackageManager();
String selection;
switch (mDirectorySearchMode) {
case SEARCH_MODE_DEFAULT:
selection = null;
break;
case SEARCH_MODE_CONTACT_SHORTCUT:
selection = Directory.SHORTCUT_SUPPORT + "=" + Directory.SHORTCUT_SUPPORT_FULL;
break;
case SEARCH_MODE_DATA_SHORTCUT:
selection =
Directory.SHORTCUT_SUPPORT
+ " IN ("
+ Directory.SHORTCUT_SUPPORT_FULL
+ ", "
+ Directory.SHORTCUT_SUPPORT_DATA_ITEMS_ONLY
+ ")";
break;
default:
throw new RuntimeException("Unsupported directory search mode: " + mDirectorySearchMode);
}
Cursor cursor = null;
try {
cursor =
context
.getContentResolver()
.query(
DirectoryQuery.URI,
DirectoryQuery.PROJECTION,
selection,
null,
DirectoryQuery.ORDER_BY);
if (cursor == null) {
return result;
}
while (cursor.moveToNext()) {
long directoryId = cursor.getLong(DirectoryQuery.ID);
if (!mLocalInvisibleDirectoryEnabled && DirectoryCompat.isInvisibleDirectory(directoryId)) {
continue;
}
String directoryType = null;
String packageName = cursor.getString(DirectoryQuery.PACKAGE_NAME);
int typeResourceId = cursor.getInt(DirectoryQuery.TYPE_RESOURCE_ID);
if (!TextUtils.isEmpty(packageName) && typeResourceId != 0) {
try {
directoryType = pm.getResourcesForApplication(packageName).getString(typeResourceId);
} catch (Exception e) {
LogUtil.e(
"ContactEntryListAdapter.loadInBackground",
"cannot obtain directory type from package: " + packageName);
}
}
String displayName = cursor.getString(DirectoryQuery.DISPLAY_NAME);
int photoSupport = cursor.getInt(DirectoryQuery.PHOTO_SUPPORT);
result.addRow(new Object[] {directoryId, directoryType, displayName, photoSupport});
}
} catch (RuntimeException e) {
LogUtil.w(
"ContactEntryListAdapter.loadInBackground", "runtime exception when querying directory");
} finally {
if (cursor != null) {
cursor.close();
}
}
return result;
}
private Cursor getDefaultDirectories() {
if (mDefaultDirectoryList == null) {
mDefaultDirectoryList = new MatrixCursor(RESULT_PROJECTION);
mDefaultDirectoryList.addRow(
new Object[] {Directory.DEFAULT, getContext().getString(R.string.contactsList), null});
mDefaultDirectoryList.addRow(
new Object[] {
Directory.LOCAL_INVISIBLE,
getContext().getString(R.string.local_invisible_directory),
null
});
}
return mDefaultDirectoryList;
}
@Override
protected void onReset() {
stopLoading();
}
private static final class DirectoryQuery {
public static final Uri URI = DirectoryCompat.getContentUri();
public static final String ORDER_BY = Directory._ID;
public static final String[] PROJECTION = {
Directory._ID,
Directory.PACKAGE_NAME,
Directory.TYPE_RESOURCE_ID,
Directory.DISPLAY_NAME,
Directory.PHOTO_SUPPORT,
};
public static final int ID = 0;
public static final int PACKAGE_NAME = 1;
public static final int TYPE_RESOURCE_ID = 2;
public static final int DISPLAY_NAME = 3;
public static final int PHOTO_SUPPORT = 4;
}
}
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