package de.fhdw.ergoholics.brainphaser.activities.selectuser;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.RecyclerView;
import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.List;
import javax.inject.Inject;
import de.fhdw.ergoholics.brainphaser.BrainPhaserApplication;
import de.fhdw.ergoholics.brainphaser.R;
import de.fhdw.ergoholics.brainphaser.activities.createuser.Avatars;
import de.fhdw.ergoholics.brainphaser.logic.UserManager;
import de.fhdw.ergoholics.brainphaser.model.User;
/**
* Created by Christian Kost
* <p/>
* Adapter to load all users into a list. Contains a context menu to perform actions on the users
*/
public class UserAdapter extends RecyclerView.Adapter<UserAdapter.UserViewHolder> {
@Inject
UserManager mUserManager;
//Attributes
private ResultListener mResultListener;
private List<User> mUsers;
private BrainPhaserApplication mApplication;
/**
* Constructor to setup the listener, inject components and get all users
*
* @param allUsers list of all users
* @param resultListener Listener of the activity
* @param application App
*/
public UserAdapter(List<User> allUsers, ResultListener resultListener, BrainPhaserApplication application) {
mUsers = allUsers;
mResultListener = resultListener;
mApplication = application;
application.getComponent().inject(this);
}
/**
* Get the user manager
*
* @return The user manager
*/
public UserManager getUserManager() {
return mUserManager;
}
/**
* Creates the list item's view
*
* @param parent To get the context
* @param viewType Ignored
* @return The ViewHolder
*/
@Override
public UserViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater myInflater = LayoutInflater.from(parent.getContext());
//Load the list template
View customView = myInflater.inflate(R.layout.list_item_user, parent, false);
return new UserViewHolder(customView, this);
}
/**
* Binds list element of given position to the view
*
* @param holder UserViewHolder
* @param position Positon
*/
@Override
public void onBindViewHolder(UserViewHolder holder, int position) {
//bind the user
User user = mUsers.get(position);
holder.bindUser(user);
}
/**
* Get the size of the view
*
* @return Size of the user list
*/
@Override
public int getItemCount() {
return mUsers.size();
}
/**
* Pass selection on to the ResultListener
*
* @param user Selected user
*/
public void onUserSelected(User user) {
mResultListener.onUserSelected(user);
}
/**
* Removes a user from the list
*
* @param position User's position in the list
*/
public void removeAt(int position) {
mUsers.remove(position);
notifyItemRemoved(position);
notifyItemRangeChanged(position, mUsers.size());
}
/**
* Interface for ClickListener on a user
*/
public interface ResultListener {
void onUserSelected(User user);
void onEditUser(User user);
void onDeleteUser(User user, int position);
}
/**
* User View Holder holds the items in the UserList
*/
public class UserViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener, View.OnClickListener,
MenuItem.OnMenuItemClickListener {
//Attributes
private TextView mUserText;
private ImageView mUserImage;
private UserAdapter mAdapter;
/**
* Constructor instantiates the text and images
*
* @param itemView Ignored
* @param adapter The UserAdapter
*/
public UserViewHolder(View itemView, UserAdapter adapter) {
super(itemView);
itemView.setOnClickListener(this);
itemView.setOnCreateContextMenuListener(this);
mUserText = (TextView) itemView.findViewById(R.id.userItemText);
mUserImage = (ImageView) itemView.findViewById(R.id.userItemImage);
mAdapter = adapter;
}
/**
* Creates a context menu to delete and edit an user
*
* @param menu The context menu which contains the different items
* @param v Ignored
* @param menuInfo Ignored
*/
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenu.ContextMenuInfo menuInfo) {
MenuItem editItem = menu.add(mApplication.getString(R.string.user_context_menu_button_edit));
editItem.setOnMenuItemClickListener(this);
if (!mUsers.get(getPosition()).getId().equals(mUserManager.getCurrentUser().getId())) {
MenuItem deleteItem = menu.add(mApplication.getString(R.string.user_context_menu_button_delete));
deleteItem.setOnMenuItemClickListener(this);
}
}
/**
* Actually deletes or loads the edit screen for an user
*
* @param item Menu item, which was pressed
* @return True
*/
@Override
public boolean onMenuItemClick(MenuItem item) {
if (item.getTitle().equals(mApplication.getString(R.string.user_context_menu_button_edit))) {
mResultListener.onEditUser(mUsers.get(getPosition()));
} else if (item.getTitle().equals(mApplication.getString(R.string.user_context_menu_button_delete))) {
mResultListener.onDeleteUser(mUsers.get(getPosition()), getPosition());
}
return true;
}
/**
* Bind the user to the View Holder and add an OnClickListener
*
* @param user User to bind to the view
*/
public void bindUser(final User user) {
String username = user.getName();
int avatarId = Avatars.getAvatarResourceId(itemView.getContext(), user.getAvatar());
mUserText.setText(username);
mUserImage.setImageResource(avatarId);
// Highlight currently logged in user
if (user.getId().equals(mAdapter.getUserManager().getCurrentUser().getId())) {
mUserText.setTextColor(ContextCompat.getColor(itemView.getContext(), R.color.colorAccent));
} else {
int[] attrs = {android.R.attr.textColor};
TypedArray ta = itemView.getContext().obtainStyledAttributes(android.R.style.TextAppearance_Large, attrs);
mUserText.setTextColor(ta.getColor(0, Color.BLACK));
ta.recycle();
}
//set click listener
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mAdapter.onUserSelected(user);
}
});
}
/**
* Ignored
*
* @param v Ignored
*/
@Override
public void onClick(View v) {
}
}
}
