replicant-packages_apps_Email/src/com/android/email/activity/MailboxFragmentAdapter.java

330 lines
14 KiB
Java

/*
* Copyright (C) 2011 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.email.activity;
import com.android.email.Email;
import com.android.email.FolderProperties;
import com.android.email.R;
import com.android.email.data.ClosingMatrixCursor;
import com.android.email.data.ThrottlingCursorLoader;
import com.android.emailcommon.Logging;
import com.android.emailcommon.provider.EmailContent;
import com.android.emailcommon.provider.EmailContent.Account;
import com.android.emailcommon.provider.EmailContent.AccountColumns;
import com.android.emailcommon.provider.EmailContent.MailboxColumns;
import com.android.emailcommon.provider.EmailContent.Message;
import com.android.emailcommon.provider.Mailbox;
import com.android.emailcommon.utility.Utility;
import android.content.Context;
import android.content.Loader;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.database.MatrixCursor.RowBuilder;
import android.database.MergeCursor;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
/**
* Mailbox cursor adapter for the mailbox list fragment.
*
* A mailbox cursor may contain one of several different types of data. Currently, this
* adapter supports the following views:
* 1. The standard inbox, mailbox view
* 2. The combined mailbox view
* 3. Nested folder navigation
*
* TODO At a minimum, we should break out the loaders. They have no relation to the view code
* and only serve to confuse the user.
* TODO Determine if we actually need a separate adapter / view / loader for nested folder
* navigation. It's a little convoluted at the moment, but, still manageable.
*/
/*package*/ class MailboxFragmentAdapter extends MailboxesAdapter {
private static final String MAILBOX_SELECTION = MailboxColumns.ACCOUNT_KEY + "=?" +
" AND " + MailboxColumns.ID + "=?";
public MailboxFragmentAdapter(Context context, Callback callback) {
super(context, callback);
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
final boolean isAccount = isAccountRow(cursor);
final int type = cursor.getInt(COLUMN_TYPE);
final long id = cursor.getLong(COLUMN_ID);
final int flags = cursor.getInt(COLUMN_FLAGS);
final int rowType = cursor.getInt(COLUMN_ROW_TYPE);
final boolean hasVisibleChildren = (flags & Mailbox.FLAG_HAS_CHILDREN) != 0
&& (flags & Mailbox.FLAG_CHILDREN_VISIBLE) != 0;
MailboxListItem listItem = (MailboxListItem)view;
listItem.mMailboxId = id;
listItem.mMailboxType = type;
listItem.mIsValidDropTarget = (id >= 0)
&& !Utility.arrayContains(Mailbox.INVALID_DROP_TARGETS, type)
&& (flags & Mailbox.FLAG_ACCEPTS_MOVED_MAIL) != 0;
listItem.mIsNavigable = hasVisibleChildren;
listItem.mAdapter = this;
// Set the background depending on whether we're in drag mode, the mailbox is a valid
// target, etc.
mCallback.onBind(listItem);
// Set mailbox name
final TextView nameView = (TextView) view.findViewById(R.id.mailbox_name);
nameView.setText(getDisplayName(context, cursor));
// Set count
final int count;
switch (getCountTypeForMailboxType(cursor)) {
case COUNT_TYPE_UNREAD:
count = cursor.getInt(COLUMN_UNREAD_COUNT);
break;
case COUNT_TYPE_TOTAL:
count = cursor.getInt(COLUMN_MESSAGE_COUNT);
break;
default: // no count
count = 0;
break;
}
final TextView countView = (TextView) view.findViewById(R.id.message_count);
// Set folder icon
final ImageView folderIcon = (ImageView) view.findViewById(R.id.folder_icon);
folderIcon.setImageDrawable(
FolderProperties.getInstance(context).getIcon(type, id, flags));
final ImageView mailboxExpandedIcon =
(ImageView) view.findViewById(R.id.folder_expanded_icon);
switch (cursor.getInt(COLUMN_ROW_TYPE)) {
case ROW_TYPE_SUBMAILBOX:
if (hasVisibleChildren) {
mailboxExpandedIcon.setVisibility(View.VISIBLE);
mailboxExpandedIcon.setImageResource(
R.drawable.ic_mailbox_collapsed_holo_light);
} else {
mailboxExpandedIcon.setVisibility(View.INVISIBLE);
mailboxExpandedIcon.setImageDrawable(null);
}
folderIcon.setVisibility(View.INVISIBLE);
break;
case ROW_TYPE_CURMAILBOX:
mailboxExpandedIcon.setVisibility(View.GONE);
mailboxExpandedIcon.setImageDrawable(null);
folderIcon.setVisibility(View.GONE);
break;
case ROW_TYPE_MAILBOX:
default:
if (hasVisibleChildren) {
mailboxExpandedIcon.setVisibility(View.VISIBLE);
mailboxExpandedIcon.setImageResource(
R.drawable.ic_mailbox_collapsed_holo_light);
} else {
mailboxExpandedIcon.setVisibility(View.GONE);
mailboxExpandedIcon.setImageDrawable(null);
}
folderIcon.setVisibility(View.VISIBLE);
break;
}
// If the unread count is zero, not to show countView.
if (count > 0) {
countView.setVisibility(View.VISIBLE);
countView.setText(Integer.toString(count));
} else {
countView.setVisibility(View.GONE);
}
final View chipView = view.findViewById(R.id.color_chip);
if (isAccount) {
chipView.setVisibility(View.VISIBLE);
chipView.setBackgroundColor(mResourceHelper.getAccountColor(id));
} else {
chipView.setVisibility(View.GONE);
}
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return mInflater.inflate(R.layout.mailbox_list_item, parent, false);
}
/**
* Returns a cursor loader for the mailboxes of the given account. If <code>parentKey</code>
* refers to a valid mailbox ID [e.g. non-zero], restrict the loader to only those mailboxes
* contained by this parent mailbox.
*/
public static Loader<Cursor> createLoader(Context context, long accountId, long parentKey) {
if (Logging.DEBUG_LIFECYCLE && Email.DEBUG) {
Log.d(Logging.LOG_TAG, "MailboxFragmentAdapter#createLoader accountId=" + accountId);
}
if (accountId != Account.ACCOUNT_ID_COMBINED_VIEW) {
return new MailboxFragmentLoader(context, accountId, parentKey);
} else {
return new CombinedMailboxLoader(context);
}
}
/**
* Adds a new row into the given cursor.
*/
private static void addMailboxRow(MatrixCursor cursor, long mailboxId, String displayName,
int mailboxType, int unreadCount, int messageCount, int rowType, int flags) {
long listId = mailboxId;
if (mailboxId < 0) {
listId = Long.MAX_VALUE + mailboxId; // IDs for the list view must be positive
}
RowBuilder row = cursor.newRow();
row.add(listId);
row.add(mailboxId);
row.add(displayName);
row.add(mailboxType);
row.add(unreadCount);
row.add(messageCount);
row.add(rowType);
row.add(flags);
}
private static void addSummaryMailboxRow(MatrixCursor cursor, long id, int mailboxType,
int count, boolean showAlways) {
if (id >= 0) {
throw new IllegalArgumentException(); // Must be QUERY_ALL_*, which are all negative
}
if (showAlways || (count > 0)) {
addMailboxRow(
cursor, id, "", mailboxType, count, count, ROW_TYPE_MAILBOX, Mailbox.FLAG_NONE);
}
}
/**
* Loader for mailboxes of an account.
*/
private static class MailboxFragmentLoader extends ThrottlingCursorLoader {
private final Context mContext;
private final long mAccountId;
private final long mParentKey;
MailboxFragmentLoader(Context context, long accountId, long parentKey) {
super(context, Mailbox.CONTENT_URI,
(parentKey != Mailbox.NO_MAILBOX)
? MailboxesAdapter.SUBMAILBOX_PROJECTION
: MailboxesAdapter.PROJECTION,
MAILBOX_SELECTION_WITH_PARENT,
new String[] { Long.toString(accountId), Long.toString(parentKey) },
MAILBOX_ORDER_BY);
mContext = context;
mAccountId = accountId;
mParentKey = parentKey;
}
@Override
public void onContentChanged() {
if (sEnableUpdate) {
super.onContentChanged();
}
}
@Override
public Cursor loadInBackground() {
final Cursor childMailboxCursor = super.loadInBackground();
// If we're not showing the top level mailboxes, add the "parent" mailbox.
if (mParentKey != Mailbox.NO_MAILBOX) {
final Cursor parentCursor = getContext().getContentResolver().query(
Mailbox.CONTENT_URI, CURMAILBOX_PROJECTION, MAILBOX_SELECTION,
new String[] { Long.toString(mAccountId), Long.toString(mParentKey) },
null);
return Utility.CloseTraceCursorWrapper.get(new MergeCursor(
new Cursor[] { parentCursor, childMailboxCursor }));
}
// Add "Starred", only if the account has at least one starred message.
// TODO It's currently "combined starred", but the plan is to make it per-account
// starred.
final int accountStarredCount = Message.getFavoriteMessageCount(mContext, mAccountId);
if (accountStarredCount > 0) {
final MatrixCursor starredCursor = new MatrixCursor(getProjection());
final int totalStarredCount = Message.getFavoriteMessageCount(mContext);
addSummaryMailboxRow(starredCursor, Mailbox.QUERY_ALL_FAVORITES, Mailbox.TYPE_MAIL,
totalStarredCount, true);
return Utility.CloseTraceCursorWrapper.get(
new MergeCursor(new Cursor[] { starredCursor, childMailboxCursor }));
}
return Utility.CloseTraceCursorWrapper.get(childMailboxCursor); // no starred message
}
}
/**
* Loader for mailboxes in "Combined view".
*/
/*package*/ static class CombinedMailboxLoader extends ThrottlingCursorLoader {
private static final String[] ACCOUNT_PROJECTION = new String[] {
EmailContent.RECORD_ID, AccountColumns.DISPLAY_NAME,
};
private static final int COLUMN_ACCOUND_ID = 0;
private static final int COLUMN_ACCOUNT_DISPLAY_NAME = 1;
private final Context mContext;
public CombinedMailboxLoader(Context context) {
super(context, Account.CONTENT_URI, ACCOUNT_PROJECTION, null, null, null);
mContext = context;
}
@Override
public Cursor loadInBackground() {
final Cursor accounts = super.loadInBackground();
final MatrixCursor combinedWithAccounts = getCursor(mContext, accounts);
accounts.moveToPosition(-1);
while (accounts.moveToNext()) {
final long accountId = accounts.getLong(COLUMN_ACCOUND_ID);
final String accountName = accounts.getString(COLUMN_ACCOUNT_DISPLAY_NAME);
final int unreadCount = Mailbox.getUnreadCountByAccountAndMailboxType(
mContext, accountId, Mailbox.TYPE_INBOX);
addMailboxRow(combinedWithAccounts, accountId, accountName, Mailbox.TYPE_NONE,
unreadCount, unreadCount, ROW_TYPE_ACCOUNT, Mailbox.FLAG_NONE);
}
return Utility.CloseTraceCursorWrapper.get(combinedWithAccounts);
}
/*package*/ static MatrixCursor getCursor(Context context,
Cursor innerCursor) {
MatrixCursor cursor = new ClosingMatrixCursor(PROJECTION, innerCursor);
// Combined inbox -- show unread count
addSummaryMailboxRow(cursor, Mailbox.QUERY_ALL_INBOXES, Mailbox.TYPE_INBOX,
Mailbox.getUnreadCountByMailboxType(context, Mailbox.TYPE_INBOX), true);
// Favorite (starred) -- show # of favorites
addSummaryMailboxRow(cursor, Mailbox.QUERY_ALL_FAVORITES, Mailbox.TYPE_MAIL,
Message.getFavoriteMessageCount(context), false);
// Drafts -- show # of drafts
addSummaryMailboxRow(cursor, Mailbox.QUERY_ALL_DRAFTS, Mailbox.TYPE_DRAFTS,
Mailbox.getMessageCountByMailboxType(context, Mailbox.TYPE_DRAFTS), false);
// Outbox -- # of outstanding messages
addSummaryMailboxRow(cursor, Mailbox.QUERY_ALL_OUTBOX, Mailbox.TYPE_OUTBOX,
Mailbox.getMessageCountByMailboxType(context, Mailbox.TYPE_OUTBOX), false);
return cursor;
}
}
}