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/*
* Copyright (C) 2012 Google Inc.
* Licensed to 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.mail.ui;
import android.app.AlertDialog;
import android.app.LoaderManager;
import android.content.Context;
import android.content.CursorLoader;
import android.content.DialogInterface;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import com.android.mail.R;
import com.android.mail.providers.Conversation;
import com.android.mail.providers.Folder;
import com.android.mail.providers.UIProvider;
import com.android.mail.providers.UIProvider.FolderType;
import com.android.mail.ui.FolderSelectorAdapter.FolderRow;
import com.android.mail.utils.Utils;
import com.google.common.collect.ImmutableSet;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Displays a folder selection dialog for the conversation provided. It allows
* the user to mark folders to assign that conversation to.
*/
public class MultiFoldersSelectionDialog extends FolderSelectionDialog {
private boolean mSingle;
private final HashMap<Uri, FolderOperation> mOperations;
public MultiFoldersSelectionDialog() {
mOperations = new HashMap<Uri, FolderOperation>();
}
private static final int FOLDER_LOADER_ID = 0;
private static final String FOLDER_QUERY_URI_TAG = "folderQueryUri";
private static final String SAVESTATE_OPERATIONS_TAG = "operations";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mSingle = !mAccount
.supportsCapability(UIProvider.AccountCapabilities.MULTIPLE_FOLDERS_PER_CONV);
mTitleId = R.string.change_folders_selection_dialog_title;
if (savedInstanceState != null) {
final FolderOperation[] savedOps = (FolderOperation[])
savedInstanceState.getParcelableArray(SAVESTATE_OPERATIONS_TAG);
for (final FolderOperation op : savedOps) {
mOperations.put(op.mFolder.folderUri.fullUri, op);
}
}
final Bundle args = new Bundle(1);
args.putParcelable(FOLDER_QUERY_URI_TAG, !Utils.isEmpty(mAccount.fullFolderListUri) ?
mAccount.fullFolderListUri : mAccount.folderListUri);
final Context loaderContext = getActivity().getApplicationContext();
getLoaderManager().initLoader(FOLDER_LOADER_ID, args,
new LoaderManager.LoaderCallbacks<Cursor>() {
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
final Uri queryUri = args.getParcelable(FOLDER_QUERY_URI_TAG);
return new CursorLoader(loaderContext, queryUri,
UIProvider.FOLDERS_PROJECTION, null, null, null);
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
final Context context = getActivity();
if (data == null || context == null) {
return;
}
final AlertDialog dialog = (AlertDialog) getDialog();
if (dialog == null) {
// This could happen if the dialog is dismissed just before the
// load finishes.
return;
}
// The number of view types changes here, so we have to reset the listview's
// adapter.
dialog.getListView().setAdapter(null);
dialog.getListView().setDivider(null);
final HashSet<String> checked = new HashSet<String>();
for (final Conversation conversation : mTarget) {
final List<Folder> rawFolders = conversation.getRawFolders();
if (rawFolders != null && rawFolders.size() > 0) {
// Parse the raw folders and get all the uris.
checked.addAll(Arrays.asList(Folder.getUriArray(rawFolders)));
} else {
// There are no folders for this conversation, so it must
// belong to the folder we are currently looking at.
checked.add(mCurrentFolder.folderUri.fullUri.toString());
}
}
final Set<String> originalChecked = ImmutableSet.copyOf(checked);
for (final Map.Entry<Uri, FolderOperation> entry : mOperations.entrySet()) {
if (entry.getValue().mAdd) {
checked.add(entry.getKey().toString());
} else {
checked.remove(entry.getKey().toString());
}
}
mAdapter.clearSections();
// TODO(mindyp) : bring this back in UR8 when Email providers
// will have divided folder sections.
/* final String[] headers = mContext.getResources()
.getStringArray(R.array.moveto_folder_sections);
// Currently, the number of adapters are assumed to match the
// number of headers in the string array.
mAdapter.addSection(new SystemFolderSelectorAdapter(mContext,
foldersCursor, checked, R.layout.multi_folders_view, null));
// TODO(mindyp): we currently do not support frequently moved to
// folders, at headers[1]; need to define what that means.*/
Cursor c = AddableFolderSelectorAdapter.filterFolders(data,
ImmutableSet.of(FolderType.INBOX_SECTION), originalChecked,
true /* includeOnlyInitiallySelected */);
if (c.getCount() > 0) {
mAdapter.addSection(new AddableFolderSelectorAdapter(context, c,
checked, R.layout.multi_folders_view));
}
c = AddableFolderSelectorAdapter.filterFolders(data,
ImmutableSet.of(FolderType.INBOX_SECTION), originalChecked,
false /* includeOnlyInitiallySelected */);
if (c.getCount() > 0) {
mAdapter.addSection(new AddableFolderSelectorAdapter(context, c,
checked, R.layout.multi_folders_view));
}
dialog.getListView().setAdapter(mAdapter);
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
mAdapter.clearSections();
}
});
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putParcelableArray(SAVESTATE_OPERATIONS_TAG,
mOperations.values().toArray(new FolderOperation[mOperations.size()]));
}
@Override
protected void onListItemClick(int position) {
final Object item = mAdapter.getItem(position);
if (item instanceof FolderRow) {
update((FolderRow) item);
}
}
/**
* Call this to update the state of folders as a result of them being
* selected / de-selected.
*
* @param row The item being updated.
*/
private void update(FolderSelectorAdapter.FolderRow row) {
final boolean add = !row.isSelected();
if (mSingle) {
if (!add) {
// This would remove the check on a single radio button, so just
// return.
return;
}
// Clear any other checked items.
for (int i = 0, size = mAdapter.getCount(); i < size; i++) {
final Object item = mAdapter.getItem(i);
if (item instanceof FolderRow) {
((FolderRow)item).setIsSelected(false);
final Folder folder = ((FolderRow)item).getFolder();
mOperations.put(folder.folderUri.fullUri,
new FolderOperation(folder, false));
}
}
}
row.setIsSelected(add);
mAdapter.notifyDataSetChanged();
final Folder folder = row.getFolder();
mOperations.put(folder.folderUri.fullUri, new FolderOperation(folder, add));
}
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case DialogInterface.BUTTON_POSITIVE:
getConversationUpdater().assignFolder(mOperations.values(), mTarget, mBatch,
true /* showUndo */, false /* isMoveTo */);
break;
case DialogInterface.BUTTON_NEGATIVE:
break;
default:
break;
}
}
}
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