/*
Copyright © 2013-2014, Silent Circle, LLC.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Any redistribution, use, or modification is done solely for personal
benefit and not for any commercial purpose or for monetary gain
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name Silent Circle nor the names of its contributors may
be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL SILENT CIRCLE, LLC BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* 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.silentcircle.contacts.group;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.TextView;
import com.actionbarsherlock.app.SherlockFragment;
import com.silentcircle.contacts.GroupListLoader;
import com.silentcircle.contacts.R;
import com.silentcircle.contacts.group.GroupBrowseListAdapter.GroupListItemViewCache;
import com.silentcircle.contacts.widget.AutoScrollListView;
/**
* Fragment to display the list of groups.
*/
public class GroupBrowseListFragment extends SherlockFragment
implements OnFocusChangeListener, OnTouchListener {
/**
* Action callbacks that can be sent by a group list.
*/
public interface OnGroupBrowserActionListener {
/**
* Opens the specified group for viewing.
*
* @param groupUri for the group that the user wishes to view.
*/
void onViewGroupAction(Uri groupUri);
}
private static final String TAG = "GroupBrowseListFragment";
private static final int LOADER_GROUPS = 1;
private Context mContext;
private Cursor mGroupListCursor;
private boolean mSelectionToScreenRequested;
private static final String EXTRA_KEY_GROUP_URI = "groups.groupUri";
private View mRootView;
private AutoScrollListView mListView;
private TextView mEmptyView;
private View mAddAccountsView;
private View mAddAccountButton;
private GroupBrowseListAdapter mAdapter;
private boolean mSelectionVisible;
private Uri mSelectedGroupUri;
private int mVerticalScrollbarPosition = View.SCROLLBAR_POSITION_RIGHT;
private OnGroupBrowserActionListener mListener;
public GroupBrowseListFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (savedInstanceState != null) {
mSelectedGroupUri = savedInstanceState.getParcelable(EXTRA_KEY_GROUP_URI);
if (mSelectedGroupUri != null) {
// The selection may be out of screen, if rotated from portrait to landscape,
// so ensure it's visible.
mSelectionToScreenRequested = true;
}
}
mRootView = inflater.inflate(R.layout.group_browse_list_fragment, null);
mEmptyView = (TextView)mRootView.findViewById(R.id.empty);
mAdapter = new GroupBrowseListAdapter(mContext);
mAdapter.setSelectionVisible(mSelectionVisible);
mAdapter.setSelectedGroup(mSelectedGroupUri);
mListView = (AutoScrollListView) mRootView.findViewById(R.id.list);
mListView.setOnFocusChangeListener(this);
mListView.setOnTouchListener(this);
mListView.setAdapter(mAdapter);
mListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
GroupListItemViewCache groupListItem = (GroupListItemViewCache) view.getTag();
if (groupListItem != null) {
viewGroup(groupListItem.getUri());
}
}
});
mListView.setEmptyView(mEmptyView);
mAddAccountsView = mRootView.findViewById(R.id.add_accounts);
// mAddAccountButton = mRootView.findViewById(R.id.add_account_button);
// mAddAccountButton.setOnClickListener(new OnClickListener() {
// @Override
// public void onClick(View v) {
// Intent intent = new Intent(Settings.ACTION_ADD_ACCOUNT);
// intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
// intent.putExtra(Settings.EXTRA_AUTHORITIES,
// new String[] { ContactsContract.AUTHORITY });
// startActivity(intent);
// }
// });
setAddAccountsVisibility(false /*!ContactsUtils.areGroupWritableAccountsAvailable(mContext)*/);
return mRootView;
}
public void setVerticalScrollbarPosition(int position) {
if (mVerticalScrollbarPosition != position) {
mVerticalScrollbarPosition = position;
configureVerticalScrollbar();
}
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
private void configureVerticalScrollbar() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
mListView.setVerticalScrollbarPosition(mVerticalScrollbarPosition);
mListView.setScrollBarStyle(ListView.SCROLLBARS_OUTSIDE_OVERLAY);
int leftPadding = 0;
int rightPadding = 0;
if (mVerticalScrollbarPosition == View.SCROLLBAR_POSITION_LEFT) {
leftPadding = mContext.getResources().getDimensionPixelOffset(R.dimen.list_visible_scrollbar_padding);
}
else {
rightPadding = mContext.getResources().getDimensionPixelOffset(R.dimen.list_visible_scrollbar_padding);
}
mListView.setPadding(leftPadding, mListView.getPaddingTop(), rightPadding, mListView.getPaddingBottom());
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
mContext = activity;
}
@Override
public void onDetach() {
super.onDetach();
mContext = null;
}
@Override
public void onStart() {
getLoaderManager().initLoader(LOADER_GROUPS, null, mGroupLoaderListener);
super.onStart();
}
/**
* The listener for the group meta data loader for all groups.
*/
private final LoaderManager.LoaderCallbacks<Cursor> mGroupLoaderListener =
new LoaderManager.LoaderCallbacks<Cursor>() {
@Override
public CursorLoader onCreateLoader(int id, Bundle args) {
mEmptyView.setText(null);
return new GroupListLoader(mContext);
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
mGroupListCursor = data;
bindGroupList();
}
public void onLoaderReset(Loader<Cursor> loader) {
}
};
private void bindGroupList() {
mEmptyView.setText(R.string.noGroups);
setAddAccountsVisibility(false /*!ContactsUtils.areGroupWritableAccountsAvailable(mContext)*/);
if (mGroupListCursor == null) {
return;
}
mAdapter.setCursor(mGroupListCursor);
if (mSelectionToScreenRequested) {
mSelectionToScreenRequested = false;
requestSelectionToScreen();
}
mSelectedGroupUri = mAdapter.getSelectedGroup();
if (mSelectionVisible && mSelectedGroupUri != null) {
viewGroup(mSelectedGroupUri);
}
}
public void setListener(OnGroupBrowserActionListener listener) {
mListener = listener;
}
public void setSelectionVisible(boolean flag) {
mSelectionVisible = flag;
if (mAdapter != null) {
mAdapter.setSelectionVisible(mSelectionVisible);
}
}
private void setSelectedGroup(Uri groupUri) {
mSelectedGroupUri = groupUri;
mAdapter.setSelectedGroup(groupUri);
mListView.invalidateViews();
}
private void viewGroup(Uri groupUri) {
setSelectedGroup(groupUri);
if (mListener != null)
mListener.onViewGroupAction(groupUri);
}
public void setSelectedUri(Uri groupUri) {
viewGroup(groupUri);
mSelectionToScreenRequested = true;
}
protected void requestSelectionToScreen() {
if (!mSelectionVisible) {
return; // If selection isn't visible we don't care.
}
int selectedPosition = mAdapter.getSelectedGroupPosition();
if (selectedPosition != -1) {
mListView.requestPositionToScreen(selectedPosition, true /* smooth scroll requested */);
}
}
private void hideSoftKeyboard() {
if (mContext == null) {
return;
}
// Hide soft keyboard, if visible
InputMethodManager inputMethodManager = (InputMethodManager)mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(mListView.getWindowToken(), 0);
}
/**
* Dismisses the soft keyboard when the list takes focus.
*/
@Override
public void onFocusChange(View view, boolean hasFocus) {
if (view == mListView && hasFocus) {
hideSoftKeyboard();
}
}
/**
* Dismisses the soft keyboard when the list is touched.
*/
@Override
public boolean onTouch(View view, MotionEvent event) {
if (view == mListView) {
hideSoftKeyboard();
}
return false;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putParcelable(EXTRA_KEY_GROUP_URI, mSelectedGroupUri);
}
public void setAddAccountsVisibility(boolean visible) {
if (mAddAccountsView != null) {
mAddAccountsView.setVisibility(visible ? View.VISIBLE : View.GONE);
}
}
}