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/*
* Copyright (C) 2015 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.contacts.list;
import com.android.contacts.common.list.ContactListItemView;
import com.android.contacts.common.list.DefaultContactListAdapter;
import android.content.Context;
import android.database.Cursor;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.CheckBox;
import java.util.TreeSet;
/**
* An extension of the default contact adapter that adds checkboxes and the ability
* to select multiple contacts.
*/
public class MultiSelectEntryContactListAdapter extends DefaultContactListAdapter {
private SelectedContactsListener mSelectedContactsListener;
private TreeSet<Long> mSelectedContactIds = new TreeSet<Long>();
private boolean mDisplayCheckBoxes;
public interface SelectedContactsListener {
void onSelectedContactsChanged();
void onSelectedContactsChangedViaCheckBox();
}
public MultiSelectEntryContactListAdapter(Context context) {
super(context);
}
public void setSelectedContactsListener(SelectedContactsListener listener) {
mSelectedContactsListener = listener;
}
/**
* Returns set of selected contacts.
*/
public TreeSet<Long> getSelectedContactIds() {
return mSelectedContactIds;
}
/**
* Update set of selected contacts. This changes which checkboxes are set.
*/
public void setSelectedContactIds(TreeSet<Long> selectedContactIds) {
this.mSelectedContactIds = selectedContactIds;
notifyDataSetChanged();
if (mSelectedContactsListener != null) {
mSelectedContactsListener.onSelectedContactsChanged();
}
}
/**
* Shows checkboxes beside contacts if {@param displayCheckBoxes} is {@code TRUE}.
* Not guaranteed to work with all configurations of this adapter.
*/
public void setDisplayCheckBoxes(boolean showCheckBoxes) {
if (!mDisplayCheckBoxes && showCheckBoxes) {
setSelectedContactIds(new TreeSet<Long>());
}
mDisplayCheckBoxes = showCheckBoxes;
notifyDataSetChanged();
if (mSelectedContactsListener != null) {
mSelectedContactsListener.onSelectedContactsChanged();
}
}
/**
* Checkboxes are being displayed beside contacts.
*/
public boolean isDisplayingCheckBoxes() {
return mDisplayCheckBoxes;
}
/**
* Toggle the checkbox beside the contact for {@param contactId}.
*/
public void toggleSelectionOfContactId(long contactId) {
if (mSelectedContactIds.contains(contactId)) {
mSelectedContactIds.remove(contactId);
} else {
mSelectedContactIds.add(contactId);
}
notifyDataSetChanged();
if (mSelectedContactsListener != null) {
mSelectedContactsListener.onSelectedContactsChanged();
}
}
@Override
protected void bindView(View itemView, int partition, Cursor cursor, int position) {
super.bindView(itemView, partition, cursor, position);
final ContactListItemView view = (ContactListItemView)itemView;
bindCheckBox(view, cursor, position);
}
private void bindCheckBox(ContactListItemView view, Cursor cursor, int position) {
// Disable clicking on the first entry when showing check boxes. We do this by
// telling the view to handle clicking itself.
view.setClickable(position == 0 && hasProfile() && mDisplayCheckBoxes);
// Only show checkboxes if mDisplayCheckBoxes is enabled. Also, never show the
// checkbox for the Me profile entry.
if (position == 0 && hasProfile() || !mDisplayCheckBoxes) {
view.hideCheckBox();
return;
}
final CheckBox checkBox = view.getCheckBox();
final long contactId = cursor.getLong(ContactQuery.CONTACT_ID);
checkBox.setChecked(mSelectedContactIds.contains(contactId));
checkBox.setTag(contactId);
checkBox.setOnClickListener(mCheckBoxClickListener);
}
private final OnClickListener mCheckBoxClickListener = new OnClickListener() {
@Override
public void onClick(View v) {
final CheckBox checkBox = (CheckBox) v;
final Long contactId = (Long) checkBox.getTag();
if (checkBox.isChecked()) {
mSelectedContactIds.add(contactId);
} else {
mSelectedContactIds.remove(contactId);
}
if (mSelectedContactsListener != null) {
mSelectedContactsListener.onSelectedContactsChangedViaCheckBox();
}
}
};
}
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