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/*
* Copyright (C) 2013 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 android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.Environment;
import com.android.inputmethod.latin.makedict.BinaryDictIOUtils;
import com.android.inputmethod.latin.makedict.FormatSpec.FileHeader;
import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Locale;
/**
* A class to read a local file as a dictionary for debugging purposes.
*/
public class ExternalDictionaryGetterForDebug {
private static final String SOURCE_FOLDER = Environment.getExternalStorageDirectory().getPath()
+ "/Download";
private static final String DICTIONARY_LOCALE_ATTRIBUTE = "locale";
private static FileHeader getDictionaryFileHeaderOrNull(final File file) {
try {
final FileHeader header = BinaryDictIOUtils.getDictionaryFileHeader(file);
return header;
} catch (UnsupportedFormatException e) {
return null;
} catch (IOException e) {
return null;
}
}
private static String[] findDictionariesInTheDownloadedFolder() {
final File[] files = new File(SOURCE_FOLDER).listFiles();
final ArrayList<String> eligibleList = CollectionUtils.newArrayList();
for (File f : files) {
final FileHeader header = getDictionaryFileHeaderOrNull(f);
if (null == header) continue;
eligibleList.add(f.getName());
}
return eligibleList.toArray(new String[0]);
}
public static void chooseAndInstallDictionary(final Context context) {
final String[] fileNames = findDictionariesInTheDownloadedFolder();
if (0 == fileNames.length) {
showNoFileDialog(context);
} else if (1 == fileNames.length) {
askInstallFile(context, fileNames[0]);
} else {
showChooseFileDialog(context, fileNames);
}
}
private static void showNoFileDialog(final Context context) {
new AlertDialog.Builder(context)
.setMessage(R.string.read_external_dictionary_no_files_message)
.setPositiveButton(android.R.string.ok, new OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int which) {
dialog.dismiss();
}
}).create().show();
}
private static void showChooseFileDialog(final Context context, final String[] fileNames) {
final AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setTitle(R.string.read_external_dictionary_multiple_files_title)
.setItems(fileNames, new OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int which) {
askInstallFile(context, fileNames[which]);
}
})
.create().show();
}
private static void askInstallFile(final Context context, final String fileName) {
final File file = new File(SOURCE_FOLDER, fileName.toString());
final FileHeader header = getDictionaryFileHeaderOrNull(file);
final StringBuilder message = new StringBuilder();
final String locale =
header.mDictionaryOptions.mAttributes.get(DICTIONARY_LOCALE_ATTRIBUTE);
for (String key : header.mDictionaryOptions.mAttributes.keySet()) {
message.append(key + " = " + header.mDictionaryOptions.mAttributes.get(key));
message.append("\n");
}
final String languageName = LocaleUtils.constructLocaleFromString(locale)
.getDisplayName(Locale.getDefault());
final String title = String.format(
context.getString(R.string.read_external_dictionary_confirm_install_message),
languageName);
new AlertDialog.Builder(context)
.setTitle(title)
.setMessage(message)
.setNegativeButton(android.R.string.cancel, new OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int which) {
dialog.dismiss();
}
}).setPositiveButton(android.R.string.ok, new OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int which) {
installFile(file, header);
dialog.dismiss();
}
}).create().show();
}
private static void installFile(final File file, final FileHeader header) {
// TODO: actually install the dictionary
}
}
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