324 lines
12 KiB
Java
324 lines
12 KiB
Java
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.email.provider;
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import android.appwidget.AppWidgetManager;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.database.Cursor;
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import android.database.CursorWrapper;
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import android.net.Uri;
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import android.provider.BaseColumns;
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import com.android.emailcommon.provider.Account;
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import com.android.emailcommon.provider.Mailbox;
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import com.android.mail.providers.Folder;
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import com.android.mail.providers.UIProvider;
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import com.android.mail.providers.UIProvider.AccountColumns;
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import com.android.mail.utils.LogTag;
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import com.android.mail.utils.LogUtils;
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import com.android.mail.widget.BaseWidgetProvider;
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import com.android.mail.widget.WidgetService;
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public class WidgetProvider extends BaseWidgetProvider {
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private static final String LEGACY_PREFS_NAME = "com.android.email.widget.WidgetManager";
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private static final String LEGACY_ACCOUNT_ID_PREFIX = "accountId_";
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private static final String LEGACY_MAILBOX_ID_PREFIX = "mailboxId_";
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private static final String LOG_TAG = LogTag.getLogTag();
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// This projection is needed, as if we were to request the capabilities of the account,
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// that provider attempts to bind to the email service to get this information. It is not
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// valid to bind to a service in a broadcast receiver, as the bind just blocks, for the amount
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// of time specified in the timeout.
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// Instead, this projection doesn't include the capabilities column. The cursor wrapper then
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// makes sure that the Account objects can find all of the columns it expects.
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private static final String[] WIDGET_ACCOUNTS_PROJECTION = {
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BaseColumns._ID,
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AccountColumns.NAME,
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AccountColumns.PROVIDER_VERSION,
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AccountColumns.URI,
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AccountColumns.FOLDER_LIST_URI,
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AccountColumns.FULL_FOLDER_LIST_URI,
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AccountColumns.SEARCH_URI,
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AccountColumns.ACCOUNT_FROM_ADDRESSES,
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AccountColumns.SAVE_DRAFT_URI,
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AccountColumns.SEND_MAIL_URI,
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AccountColumns.EXPUNGE_MESSAGE_URI,
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AccountColumns.UNDO_URI,
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AccountColumns.SETTINGS_INTENT_URI,
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AccountColumns.SYNC_STATUS,
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AccountColumns.HELP_INTENT_URI,
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AccountColumns.SEND_FEEDBACK_INTENT_URI,
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AccountColumns.COMPOSE_URI,
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AccountColumns.MIME_TYPE,
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AccountColumns.RECENT_FOLDER_LIST_URI,
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AccountColumns.COLOR,
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AccountColumns.DEFAULT_RECENT_FOLDER_LIST_URI,
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AccountColumns.MANUAL_SYNC_URI,
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AccountColumns.SettingsColumns.SIGNATURE,
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AccountColumns.SettingsColumns.AUTO_ADVANCE,
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AccountColumns.SettingsColumns.MESSAGE_TEXT_SIZE,
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AccountColumns.SettingsColumns.SNAP_HEADERS,
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AccountColumns.SettingsColumns.REPLY_BEHAVIOR,
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AccountColumns.SettingsColumns.HIDE_CHECKBOXES,
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AccountColumns.SettingsColumns.CONFIRM_DELETE,
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AccountColumns.SettingsColumns.CONFIRM_ARCHIVE,
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AccountColumns.SettingsColumns.CONFIRM_SEND,
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AccountColumns.SettingsColumns.DEFAULT_INBOX,
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AccountColumns.SettingsColumns.DEFAULT_INBOX_NAME,
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AccountColumns.SettingsColumns.FORCE_REPLY_FROM_DEFAULT,
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AccountColumns.SettingsColumns.MAX_ATTACHMENT_SIZE
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};
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@Override
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public void onReceive(Context context, Intent intent) {
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// We want to migrate any legacy Email widget information to the new format
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migrateAllLegacyWidgetInformation(context);
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super.onReceive(context, intent);
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}
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/**
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* Update all widgets in the list
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*/
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@Override
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public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
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migrateLegacyWidgetInformation(context, appWidgetIds);
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super.onUpdate(context, appWidgetManager, appWidgetIds);
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}
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/**
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* Remove preferences when deleting widget
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*/
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@Override
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public void onDeleted(Context context, int[] appWidgetIds) {
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super.onDeleted(context, appWidgetIds);
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// Remove any legacy Email widget information
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final SharedPreferences prefs = context.getSharedPreferences(LEGACY_PREFS_NAME, 0);
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final SharedPreferences.Editor editor = prefs.edit();
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for (int widgetId : appWidgetIds) {
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// Remove the account in the preference
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editor.remove(LEGACY_ACCOUNT_ID_PREFIX + widgetId);
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editor.remove(LEGACY_MAILBOX_ID_PREFIX + widgetId);
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}
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editor.apply();
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}
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@Override
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protected com.android.mail.providers.Account getAccountObject(
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Context context, String accountUri) {
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final ContentResolver resolver = context.getContentResolver();
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final Cursor sparseAccountCursor = resolver.query(Uri.parse(accountUri),
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WIDGET_ACCOUNTS_PROJECTION, null, null, null);
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return getPopulatedAccountObject(sparseAccountCursor);
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}
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@Override
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protected boolean isAccountValid(Context context, com.android.mail.providers.Account account) {
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if (account != null) {
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final ContentResolver resolver = context.getContentResolver();
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final Cursor sparseAccountCursor = resolver.query(account.uri,
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WIDGET_ACCOUNTS_PROJECTION, null, null, null);
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if (sparseAccountCursor != null) {
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try {
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return sparseAccountCursor.getCount() > 0;
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} finally {
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sparseAccountCursor.close();
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}
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}
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}
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return false;
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}
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private void migrateAllLegacyWidgetInformation(Context context) {
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final int[] currentWidgetIds = getCurrentWidgetIds(context);
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migrateLegacyWidgetInformation(context, currentWidgetIds);
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}
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private void migrateLegacyWidgetInformation(Context context, int[] widgetIds) {
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final SharedPreferences prefs = context.getSharedPreferences(LEGACY_PREFS_NAME, 0);
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final SharedPreferences.Editor editor = prefs.edit();
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for (int widgetId : widgetIds) {
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long accountId = loadAccountIdPref(context, widgetId);
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long mailboxId = loadMailboxIdPref(context, widgetId);
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// Legacy support; if preferences haven't been saved for this widget, load something
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if (accountId == Account.NO_ACCOUNT || mailboxId == Mailbox.NO_MAILBOX) {
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LogUtils.d(LOG_TAG, "Couldn't load account or mailbox. accountId: %d" +
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" mailboxId: %d widgetId %d", accountId, mailboxId);
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continue;
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}
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// Get Account and folder objects for the account id and mailbox id
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final com.android.mail.providers.Account uiAccount = getAccount(context, accountId);
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final Folder uiFolder = getFolder(context, mailboxId);
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if (uiAccount != null && uiFolder != null) {
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WidgetService.saveWidgetInformation(context, widgetId, uiAccount, uiFolder);
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updateWidgetInternal(context, widgetId, uiAccount, uiFolder);
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// Now remove the old legacy preference value
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editor.remove(LEGACY_ACCOUNT_ID_PREFIX + widgetId);
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editor.remove(LEGACY_MAILBOX_ID_PREFIX + widgetId);
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}
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}
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editor.apply();
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}
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private com.android.mail.providers.Account getAccount(Context context, long accountId) {
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final ContentResolver resolver = context.getContentResolver();
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final Cursor ac = resolver.query(EmailProvider.uiUri("uiaccount", accountId),
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WIDGET_ACCOUNTS_PROJECTION, null, null, null);
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com.android.mail.providers.Account uiAccount = getPopulatedAccountObject(ac);
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return uiAccount;
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}
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private com.android.mail.providers.Account getPopulatedAccountObject(final Cursor ac) {
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if (ac == null) {
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LogUtils.e(LOG_TAG, "Null account cursor");
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return null;
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}
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final Cursor accountCursor = new SparseAccountCursorWrapper(ac);
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com.android.mail.providers.Account uiAccount = null;
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try {
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if (accountCursor.moveToFirst()) {
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uiAccount = new com.android.mail.providers.Account(accountCursor);
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}
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} finally {
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accountCursor.close();
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}
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return uiAccount;
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}
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private Folder getFolder(Context context, long mailboxId) {
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final ContentResolver resolver = context.getContentResolver();
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final Cursor fc = resolver.query(EmailProvider.uiUri("uifolder", mailboxId),
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UIProvider.FOLDERS_PROJECTION, null, null, null);
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if (fc == null) {
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LogUtils.e(LOG_TAG, "Null folder cursor for mailboxId %d", mailboxId);
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return null;
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}
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Folder uiFolder = null;
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try {
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if (fc.moveToFirst()) {
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uiFolder = new Folder(fc);
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}
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} finally {
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fc.close();
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}
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return uiFolder;
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}
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/**
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* Returns the saved account ID for the given widget. Otherwise,
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* {@link com.android.emailcommon.provider.Account#NO_ACCOUNT} if
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* the account ID was not previously saved.
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*/
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static long loadAccountIdPref(Context context, int appWidgetId) {
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final SharedPreferences prefs = context.getSharedPreferences(LEGACY_PREFS_NAME, 0);
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long accountId = prefs.getLong(LEGACY_ACCOUNT_ID_PREFIX + appWidgetId, Account.NO_ACCOUNT);
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return accountId;
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}
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/**
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* Returns the saved mailbox ID for the given widget. Otherwise,
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* {@link com.android.emailcommon.provider.Mailbox#NO_MAILBOX} if
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* the mailbox ID was not previously saved.
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*/
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static long loadMailboxIdPref(Context context, int appWidgetId) {
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final SharedPreferences prefs = context.getSharedPreferences(LEGACY_PREFS_NAME, 0);
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long mailboxId = prefs.getLong(LEGACY_MAILBOX_ID_PREFIX + appWidgetId, Mailbox.NO_MAILBOX);
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return mailboxId;
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}
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private class SparseAccountCursorWrapper extends CursorWrapper {
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public SparseAccountCursorWrapper(Cursor cursor) {
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super(cursor);
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}
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@Override
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public int getColumnCount () {
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return UIProvider.ACCOUNTS_PROJECTION.length;
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}
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@Override
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public int getColumnIndex (String columnName) {
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for (int i = 0; i < UIProvider.ACCOUNTS_PROJECTION.length; i++) {
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if (UIProvider.ACCOUNTS_PROJECTION[i].equals(columnName)) {
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return i;
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}
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}
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return -1;
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}
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@Override
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public String getColumnName (int columnIndex) {
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return UIProvider.ACCOUNTS_PROJECTION[columnIndex];
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}
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@Override
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public String[] getColumnNames () {
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return UIProvider.ACCOUNTS_PROJECTION;
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}
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@Override
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public int getInt (int columnIndex) {
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if (columnIndex == UIProvider.ACCOUNT_CAPABILITIES_COLUMN) {
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return 0;
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}
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return super.getInt(convertColumnIndex(columnIndex));
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}
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@Override
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public long getLong (int columnIndex) {
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return super.getLong(convertColumnIndex(columnIndex));
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}
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@Override
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public String getString (int columnIndex) {
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return super.getString(convertColumnIndex(columnIndex));
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}
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private int convertColumnIndex(int columnIndex) {
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// Since this sparse cursor doesn't have the capabilities column,
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// we need to adjust all of the column indexes that come after where the
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// capabilities column should be
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if (columnIndex > UIProvider.ACCOUNT_CAPABILITIES_COLUMN) {
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return columnIndex - 1;
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}
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return columnIndex;
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}
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}
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}
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