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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.mail.ui;
import android.app.LoaderManager;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.Context;
import android.content.Loader;
import android.content.res.Resources;
import android.os.Bundle;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.style.TextAppearanceSpan;
import android.view.View;
import com.android.mail.R;
import com.android.mail.browse.ConversationCursor;
import com.android.mail.content.ObjectCursor;
import com.android.mail.content.ObjectCursorLoader;
import com.android.mail.preferences.AccountPreferences;
import com.android.mail.providers.Account;
import com.android.mail.providers.Folder;
import com.android.mail.providers.UIProvider;
/**
* Tip that is displayed in conversation list of 'Sent' folder whenever there are
* one or more messages in the Outbox.
*/
public class ConversationsInOutboxTipView extends ConversationTipView {
private Account mAccount = null;
private AccountPreferences mAccountPreferences;
private LoaderManager mLoaderManager;
private FolderSelector mFolderSelector;
private Folder mOutbox;
private int mOutboxCount = -1;
private static final int LOADER_FOLDER_LIST =
AbstractActivityController.LAST_FRAGMENT_LOADER_ID + 100;
public ConversationsInOutboxTipView(Context context) {
super(context);
}
public void bind(final Account account, final FolderSelector folderSelector) {
mAccount = account;
mAccountPreferences = AccountPreferences.get(getContext(), account);
mFolderSelector = folderSelector;
}
@Override
protected OnClickListener getTextAreaOnClickListener() {
return new OnClickListener() {
@Override
public void onClick(View view) {
if (mOutbox != null) {
mFolderSelector.onFolderSelected(mOutbox);
}
}
};
}
@Override
public void onUpdate(Folder folder, ConversationCursor cursor) {
if (mLoaderManager != null && folder != null) {
if ((folder.type & UIProvider.FolderType.SENT) > 0) {
// Only display this tip if user is viewing the Sent folder
mLoaderManager.initLoader(LOADER_FOLDER_LIST, null, mFolderListLoaderCallbacks);
}
}
}
private final LoaderCallbacks<ObjectCursor<Folder>> mFolderListLoaderCallbacks =
new LoaderManager.LoaderCallbacks<ObjectCursor<Folder>>() {
@Override
public void onLoaderReset(final Loader<ObjectCursor<Folder>> loader) {
// Do nothing
}
@Override
public void onLoadFinished(final Loader<ObjectCursor<Folder>> loader,
final ObjectCursor<Folder> data) {
if (data != null && data.moveToFirst()) {
do {
final Folder folder = data.getModel();
if ((folder.type & UIProvider.FolderType.OUTBOX) > 0) {
mOutbox = folder;
onOutboxTotalCount(folder.totalCount);
}
} while (data.moveToNext());
}
}
@Override
public Loader<ObjectCursor<Folder>> onCreateLoader(final int id, final Bundle args) {
// This loads all folders in order to find 'Outbox'. We could consider adding a new
// query to load folders of a given type to make this more efficient, but should be
// okay for now since this is triggered infrequently (only when user visits the
// 'Sent' folder).
return new ObjectCursorLoader<Folder>(getContext(),
mAccount.folderListUri, UIProvider.FOLDERS_PROJECTION, Folder.FACTORY);
}
};
private void onOutboxTotalCount(int outboxCount) {
if (mOutboxCount != outboxCount) {
mOutboxCount = outboxCount;
if (outboxCount > 0) {
updateText();
}
}
if (outboxCount == 0) {
// Clear the last seen count, so that new messages in Outbox will always cause this
// tip to appear again.
mAccountPreferences.setLastSeenOutboxCount(0);
}
}
private void updateText() {
// Update the display text to reflect current mOutboxCount
final Resources resources = getContext().getResources();
final String subString = mOutbox.name;
final String entireString = resources.getString(R.string.unsent_messages_in_outbox,
String.valueOf(mOutboxCount), subString);
final SpannableString text = new SpannableString(entireString);
final int index = entireString.indexOf(subString);
text.setSpan(new TextAppearanceSpan(getContext(), R.style.LinksInTipTextAppearance), index,
index + subString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
setText(text);
}
@Override
public boolean getShouldDisplayInList() {
return (mOutboxCount > 0 && mOutboxCount != mAccountPreferences.getLastSeenOutboxCount());
}
@Override
public void bindFragment(final LoaderManager loaderManager, final Bundle savedInstanceState) {
mLoaderManager = loaderManager;
}
@Override
public void dismiss() {
// Do not show this tip again until we have a new count. Note this is not quite
// ideal behavior since after a user dismisses an "1 unsent in outbox" tip,
// the message stuck in Outbox could get sent, and a new one gets stuck.
// If the user checks back on on Sent folder then, we don't reshow the message since count
// itself hasn't changed, but ideally we should since it's a different message than before.
// However if user checks the Sent folder in between (when there were 0 messages
// in Outbox), the preference is cleared (see {@link onOutboxTotalCount}).
mAccountPreferences.setLastSeenOutboxCount(mOutboxCount);
super.dismiss();
}
}
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