FairEmail/app/src/main/java/eu/faircode/email/AdapterAnswer.java

314 lines
10 KiB
Java

package eu.faircode.email;
/*
This file is part of FairEmail.
FairEmail is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
FairEmail is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
Copyright 2018-2019 by Marcel Bokhorst (M66B)
*/
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.appcompat.widget.PopupMenu;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Lifecycle;
import androidx.lifecycle.LifecycleObserver;
import androidx.lifecycle.LifecycleOwner;
import androidx.lifecycle.OnLifecycleEvent;
import androidx.localbroadcastmanager.content.LocalBroadcastManager;
import androidx.recyclerview.widget.DiffUtil;
import androidx.recyclerview.widget.ListUpdateCallback;
import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
import java.util.List;
public class AdapterAnswer extends RecyclerView.Adapter<AdapterAnswer.ViewHolder> {
private Fragment parentFragment;
private Context context;
private LifecycleOwner owner;
private LayoutInflater inflater;
private List<EntityAnswer> items = new ArrayList<>();
private boolean composable = false;
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {
private View view;
private TextView tvName;
private TwoStateOwner powner = new TwoStateOwner(owner, "RulePopup");
ViewHolder(View itemView) {
super(itemView);
view = itemView.findViewById(R.id.clItem);
tvName = itemView.findViewById(R.id.tvName);
}
private void wire() {
view.setOnClickListener(this);
view.setOnLongClickListener(this);
}
private void unwire() {
view.setOnClickListener(null);
view.setOnLongClickListener(null);
}
private void bindTo(EntityAnswer answer) {
view.setAlpha(answer.hide ? Helper.LOW_LIGHT : 1.0f);
tvName.setText(answer.name);
}
@Override
public void onClick(View v) {
int pos = getAdapterPosition();
if (pos == RecyclerView.NO_POSITION)
return;
EntityAnswer answer = items.get(pos);
LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(context);
lbm.sendBroadcast(
new Intent(ActivityView.ACTION_EDIT_ANSWER)
.putExtra("id", answer.id));
}
@Override
public boolean onLongClick(View v) {
int pos = getAdapterPosition();
if (pos == RecyclerView.NO_POSITION)
return false;
final EntityAnswer answer = items.get(pos);
PopupMenuLifecycle popupMenu = new PopupMenuLifecycle(context, powner, view);
popupMenu.getMenu().add(Menu.NONE, 0, 0, answer.name).setEnabled(false);
if (composable)
popupMenu.getMenu().add(Menu.NONE, R.string.title_compose, 1, R.string.title_compose);
popupMenu.getMenu().add(Menu.NONE, R.string.title_answer_hide, 2, R.string.title_answer_hide)
.setCheckable(true).setChecked(answer.hide);
popupMenu.getMenu().add(Menu.NONE, R.string.title_copy, 3, R.string.title_copy);
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
case R.string.title_compose:
onActionCompose();
return true;
case R.string.title_answer_hide:
onActionHide(!item.isChecked());
return true;
case R.string.title_copy:
onActionCopy();
return true;
default:
return false;
}
}
private void onActionCompose() {
context.startActivity(new Intent(context, ActivityCompose.class)
.putExtra("action", "new")
.putExtra("answer", answer.id));
}
private void onActionHide(boolean hide) {
Bundle args = new Bundle();
args.putLong("id", answer.id);
args.putBoolean("hide", hide);
new SimpleTask<Boolean>() {
@Override
protected Boolean onExecute(Context context, Bundle args) {
long id = args.getLong("id");
boolean hide = args.getBoolean("hide");
DB db = DB.getInstance(context);
db.answer().setAnswerHidden(id, hide);
return hide;
}
@Override
protected void onException(Bundle args, Throwable ex) {
Helper.unexpectedError(parentFragment.getFragmentManager(), ex);
}
}.execute(context, owner, args, "rule:enable");
}
private void onActionCopy() {
LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(context);
lbm.sendBroadcast(
new Intent(ActivityView.ACTION_EDIT_ANSWER)
.putExtra("id", answer.id)
.putExtra("copy", true));
}
});
popupMenu.show();
return true;
}
}
AdapterAnswer(final Fragment parentFragment) {
this.parentFragment = parentFragment;
this.context = parentFragment.getContext();
this.owner = parentFragment.getViewLifecycleOwner();
this.inflater = LayoutInflater.from(context);
setHasStableIds(true);
owner.getLifecycle().addObserver(new LifecycleObserver() {
@OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
public void onDestroyed() {
Log.i(AdapterAnswer.this + " parent destroyed");
AdapterAnswer.this.parentFragment = null;
}
});
new SimpleTask<Boolean>() {
@Override
protected Boolean onExecute(Context context, Bundle args) {
DB db = DB.getInstance(context);
return (db.identity().getComposableIdentities(null).size() > 0);
}
@Override
protected void onExecuted(Bundle args, Boolean composable) {
AdapterAnswer.this.composable = composable;
}
@Override
protected void onException(Bundle args, Throwable ex) {
Helper.unexpectedError(parentFragment.getFragmentManager(), ex);
}
}.execute(context, owner, new Bundle(), "answer:composable");
}
public void set(@NonNull List<EntityAnswer> answers) {
Log.i("Set answers=" + answers.size());
DiffUtil.DiffResult diff = DiffUtil.calculateDiff(new DiffCallback(items, answers), false);
items = answers;
diff.dispatchUpdatesTo(new ListUpdateCallback() {
@Override
public void onInserted(int position, int count) {
Log.i("Inserted @" + position + " #" + count);
}
@Override
public void onRemoved(int position, int count) {
Log.i("Removed @" + position + " #" + count);
}
@Override
public void onMoved(int fromPosition, int toPosition) {
Log.i("Moved " + fromPosition + ">" + toPosition);
}
@Override
public void onChanged(int position, int count, Object payload) {
Log.i("Changed @" + position + " #" + count);
}
});
diff.dispatchUpdatesTo(this);
}
private class DiffCallback extends DiffUtil.Callback {
private List<EntityAnswer> prev = new ArrayList<>();
private List<EntityAnswer> next = new ArrayList<>();
DiffCallback(List<EntityAnswer> prev, List<EntityAnswer> next) {
this.prev.addAll(prev);
this.next.addAll(next);
}
@Override
public int getOldListSize() {
return prev.size();
}
@Override
public int getNewListSize() {
return next.size();
}
@Override
public boolean areItemsTheSame(int oldItemPosition, int newItemPosition) {
EntityAnswer a1 = prev.get(oldItemPosition);
EntityAnswer a2 = next.get(newItemPosition);
return a1.id.equals(a2.id);
}
@Override
public boolean areContentsTheSame(int oldItemPosition, int newItemPosition) {
EntityAnswer a1 = prev.get(oldItemPosition);
EntityAnswer a2 = next.get(newItemPosition);
return a1.equals(a2);
}
}
@Override
public long getItemId(int position) {
return items.get(position).id;
}
@Override
public int getItemCount() {
return items.size();
}
@Override
@NonNull
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
return new ViewHolder(inflater.inflate(R.layout.item_answer, parent, false));
}
@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
holder.unwire();
EntityAnswer answer = items.get(position);
holder.bindTo(answer);
holder.wire();
}
@Override
public void onViewDetachedFromWindow(@NonNull ViewHolder holder) {
holder.powner.recreate();
}
}