diff options
Diffstat (limited to 'java/src/com/android/inputmethod/latin/debug/ExternalDictionaryGetterForDebug.java')
| -rw-r--r-- | java/src/com/android/inputmethod/latin/debug/ExternalDictionaryGetterForDebug.java | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/java/src/com/android/inputmethod/latin/debug/ExternalDictionaryGetterForDebug.java b/java/src/com/android/inputmethod/latin/debug/ExternalDictionaryGetterForDebug.java new file mode 100644 index 000000000..028f78a87 --- /dev/null +++ b/java/src/com/android/inputmethod/latin/debug/ExternalDictionaryGetterForDebug.java @@ -0,0 +1,189 @@ +/* + * 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.debug; + +import android.app.AlertDialog; +import android.content.Context; +import android.content.DialogInterface; +import android.content.DialogInterface.OnCancelListener; +import android.content.DialogInterface.OnClickListener; +import android.os.Environment; + +import com.android.inputmethod.latin.BinaryDictionaryFileDumper; +import com.android.inputmethod.latin.BinaryDictionaryGetter; +import com.android.inputmethod.latin.R; +import com.android.inputmethod.latin.makedict.FormatSpec.FileHeader; +import com.android.inputmethod.latin.utils.CollectionUtils; +import com.android.inputmethod.latin.utils.DictionaryInfoUtils; +import com.android.inputmethod.latin.utils.LocaleUtils; + +import java.io.BufferedInputStream; +import java.io.BufferedOutputStream; +import java.io.File; +import java.io.FileInputStream; +import java.io.FileOutputStream; +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 String[] findDictionariesInTheDownloadedFolder() { + final File[] files = new File(SOURCE_FOLDER).listFiles(); + final ArrayList<String> eligibleList = CollectionUtils.newArrayList(); + for (File f : files) { + final FileHeader header = DictionaryInfoUtils.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, SOURCE_FOLDER, fileNames[0], null /* completeRunnable */); + } 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, SOURCE_FOLDER, fileNames[which], + null /* completeRunnable */); + } + }) + .create().show(); + } + + /** + * Shows a dialog which offers the user to install the external dictionary. + */ + public static void askInstallFile(final Context context, final String dirPath, + final String fileName, final Runnable completeRunnable) { + final File file = new File(dirPath, fileName.toString()); + final FileHeader header = DictionaryInfoUtils.getDictionaryFileHeaderOrNull(file); + final StringBuilder message = new StringBuilder(); + final String locale = header.getLocaleString(); + 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(); + if (completeRunnable != null) { + completeRunnable.run(); + } + } + }).setPositiveButton(android.R.string.ok, new OnClickListener() { + @Override + public void onClick(final DialogInterface dialog, final int which) { + installFile(context, file, header); + dialog.dismiss(); + if (completeRunnable != null) { + completeRunnable.run(); + } + } + }).setOnCancelListener(new OnCancelListener() { + @Override + public void onCancel(DialogInterface dialog) { + // Canceled by the user by hitting the back key + if (completeRunnable != null) { + completeRunnable.run(); + } + } + }).create().show(); + } + + private static void installFile(final Context context, final File file, + final FileHeader header) { + BufferedOutputStream outputStream = null; + File tempFile = null; + try { + final String locale = header.getLocaleString(); + // Create the id for a main dictionary for this locale + final String id = BinaryDictionaryGetter.MAIN_DICTIONARY_CATEGORY + + BinaryDictionaryGetter.ID_CATEGORY_SEPARATOR + locale; + final String finalFileName = DictionaryInfoUtils.getCacheFileName(id, locale, context); + final String tempFileName = BinaryDictionaryGetter.getTempFileName(id, context); + tempFile = new File(tempFileName); + tempFile.delete(); + outputStream = new BufferedOutputStream(new FileOutputStream(tempFile)); + final BufferedInputStream bufferedStream = new BufferedInputStream( + new FileInputStream(file)); + BinaryDictionaryFileDumper.checkMagicAndCopyFileTo(bufferedStream, outputStream); + outputStream.flush(); + final File finalFile = new File(finalFileName); + finalFile.delete(); + if (!tempFile.renameTo(finalFile)) { + throw new IOException("Can't move the file to its final name"); + } + } catch (IOException e) { + // There was an error: show a dialog + new AlertDialog.Builder(context) + .setTitle(R.string.error) + .setMessage(e.toString()) + .setPositiveButton(android.R.string.ok, new OnClickListener() { + @Override + public void onClick(final DialogInterface dialog, final int which) { + dialog.dismiss(); + } + }).create().show(); + return; + } finally { + try { + if (null != outputStream) outputStream.close(); + if (null != tempFile) tempFile.delete(); + } catch (IOException e) { + // Don't do anything + } + } + } +} |