mastodon-app-ufficiale-android/mastodon/src/main/java/org/joinmastodon/android/fragments/onboarding/InstanceCatalogFragment.java

493 lines
15 KiB
Java

package org.joinmastodon.android.fragments.onboarding;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Build;
import android.os.Bundle;
import android.os.LocaleList;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.KeyEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.TextView;
import android.widget.Toast;
import org.joinmastodon.android.R;
import org.joinmastodon.android.api.MastodonAPIRequest;
import org.joinmastodon.android.api.MastodonErrorResponse;
import org.joinmastodon.android.api.requests.GetInstance;
import org.joinmastodon.android.api.requests.catalog.GetCatalogCategories;
import org.joinmastodon.android.api.requests.catalog.GetCatalogInstances;
import org.joinmastodon.android.api.session.AccountSessionManager;
import org.joinmastodon.android.model.Instance;
import org.joinmastodon.android.model.catalog.CatalogCategory;
import org.joinmastodon.android.model.catalog.CatalogInstance;
import java.net.IDN;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.DiffUtil;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import me.grishka.appkit.api.Callback;
import me.grishka.appkit.api.ErrorResponse;
import me.grishka.appkit.fragments.BaseRecyclerFragment;
import me.grishka.appkit.utils.BindableViewHolder;
import me.grishka.appkit.utils.MergeRecyclerAdapter;
import me.grishka.appkit.utils.SingleViewRecyclerAdapter;
import me.grishka.appkit.views.UsableRecyclerView;
public class InstanceCatalogFragment extends BaseRecyclerFragment<CatalogInstance>{
private InstancesAdapter adapter;
private MergeRecyclerAdapter mergeAdapter;
private View headerView;
private CatalogInstance chosenInstance;
private List<CatalogInstance> filteredData=new ArrayList<>();
private Button nextButton;
private MastodonAPIRequest<?> getCategoriesRequest;
private EditText searchEdit;
private UsableRecyclerView categoriesList;
private Runnable searchDebouncer=this::onSearchChangedDebounced;
private String currentSearchQuery;
private String currentCategory="all";
private List<CatalogCategory> categories=new ArrayList<>();
private String loadingInstanceDomain;
private GetInstance loadingInstanceRequest;
private HashMap<String, Instance> instancesCache=new HashMap<>();
private ProgressDialog instanceProgressDialog;
private boolean isSignup;
public InstanceCatalogFragment(){
super(R.layout.fragment_onboarding_common, 10);
}
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
isSignup=getArguments().getBoolean("signup");
}
@Override
public void onAttach(Context context){
super.onAttach(context);
setRefreshEnabled(false);
loadData();
}
@Override
protected void doLoadData(int offset, int count){
currentRequest=new GetCatalogInstances(null, null)
.setCallback(new Callback<>(){
@Override
public void onSuccess(List<CatalogInstance> result){
Map<String, List<CatalogInstance>> byLang=result.stream().collect(Collectors.groupingBy(ci->ci.language));
// get the list of user-configured system languages
List<String> userLangs;
if(Build.VERSION.SDK_INT<24){
userLangs=Collections.singletonList(getResources().getConfiguration().locale.getLanguage());
}else{
LocaleList ll=getResources().getConfiguration().getLocales();
userLangs=new ArrayList<>(ll.size());
for(int i=0;i<ll.size();i++){
userLangs.add(ll.get(i).getLanguage());
}
}
// add instances in preferred languages to the top of the list, in the order of preference
ArrayList<CatalogInstance> sortedList=new ArrayList<>();
for(String lang:userLangs){
List<CatalogInstance> langInstances=byLang.remove(lang);
if(langInstances!=null){
sortedList.addAll(langInstances);
}
}
// sort the remaining language groups by aggregate lastWeekUsers
class InstanceGroup{
public int activeUsers;
public List<CatalogInstance> instances;
}
byLang.values().stream().map(il->{
InstanceGroup group=new InstanceGroup();
group.instances=il;
for(CatalogInstance instance:il){
group.activeUsers+=instance.lastWeekUsers;
}
return group;
}).sorted(Comparator.comparingInt(g->g.activeUsers)).forEachOrdered(ig->sortedList.addAll(ig.instances));
onDataLoaded(sortedList, false);
updateFilteredList();
}
@Override
public void onError(ErrorResponse error){
InstanceCatalogFragment.this.onError(error);
}
})
.execNoAuth("");
getCategoriesRequest=new GetCatalogCategories(null)
.setCallback(new Callback<>(){
@Override
public void onSuccess(List<CatalogCategory> result){
getCategoriesRequest=null;
CatalogCategory all=new CatalogCategory();
all.category="all";
categories.add(all);
categories.addAll(result);
categoriesList.getAdapter().notifyItemRangeInserted(0, categories.size());
}
@Override
public void onError(ErrorResponse error){
getCategoriesRequest=null;
error.showToast(getActivity());
}
})
.execNoAuth("");
}
@Override
public void onDestroy(){
super.onDestroy();
if(getCategoriesRequest!=null)
getCategoriesRequest.cancel();
}
@Override
protected RecyclerView.Adapter getAdapter(){
headerView=getActivity().getLayoutInflater().inflate(R.layout.header_onboarding_instance_catalog, list, false);
searchEdit=headerView.findViewById(R.id.search_edit);
categoriesList=headerView.findViewById(R.id.categories_list);
searchEdit.setOnEditorActionListener(this::onSearchEnterPressed);
searchEdit.addTextChangedListener(new TextWatcher(){
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after){
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count){
searchEdit.removeCallbacks(searchDebouncer);
searchEdit.postDelayed(searchDebouncer, 300);
}
@Override
public void afterTextChanged(Editable s){
}
});
categoriesList.setAdapter(new CategoriesAdapter());
categoriesList.setLayoutManager(new LinearLayoutManager(getActivity(), LinearLayoutManager.HORIZONTAL, false));
mergeAdapter=new MergeRecyclerAdapter();
mergeAdapter.addAdapter(new SingleViewRecyclerAdapter(headerView));
mergeAdapter.addAdapter(adapter=new InstancesAdapter());
return mergeAdapter;
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState){
super.onViewCreated(view, savedInstanceState);
nextButton=view.findViewById(R.id.btn_next);
nextButton.setOnClickListener(this::onNextClick);
}
private void onNextClick(View v){
String domain=chosenInstance.domain;
Instance instance=instancesCache.get(domain);
if(instance!=null){
proceedWithAuthOrSignup(instance);
}else{
showProgressDialog();
if(!domain.equals(loadingInstanceDomain)){
loadInstanceInfo(domain);
}
}
}
private void proceedWithAuthOrSignup(Instance instance){
if(isSignup){
Toast.makeText(getActivity(), "not implemented yet", Toast.LENGTH_SHORT).show();
}else{
AccountSessionManager.getInstance().authenticate(getActivity(), instance);
}
}
private boolean onSearchEnterPressed(TextView v, int actionId, KeyEvent event){
if(event!=null && event.getAction()!=KeyEvent.ACTION_DOWN)
return true;
searchEdit.removeCallbacks(searchDebouncer);
Instance instance=instancesCache.get(currentSearchQuery);
if(instance==null){
showProgressDialog();
loadInstanceInfo(currentSearchQuery);
}else{
proceedWithAuthOrSignup(instance);
}
return true;
}
private void onSearchChangedDebounced(){
currentSearchQuery=searchEdit.getText().toString().toLowerCase();
updateFilteredList();
loadInstanceInfo(currentSearchQuery);
}
private void updateFilteredList(){
ArrayList<CatalogInstance> prevData=new ArrayList<>(filteredData);
filteredData.clear();
for(CatalogInstance instance:data){
if(currentCategory.equals("all") || instance.categories.contains(currentCategory)){
if(TextUtils.isEmpty(currentSearchQuery) || instance.domain.contains(currentSearchQuery)){
if(instance.domain.equals(currentSearchQuery) || !instance.approvalRequired)
filteredData.add(instance);
}
}
}
DiffUtil.calculateDiff(new DiffUtil.Callback(){
@Override
public int getOldListSize(){
return prevData.size();
}
@Override
public int getNewListSize(){
return filteredData.size();
}
@Override
public boolean areItemsTheSame(int oldItemPosition, int newItemPosition){
return prevData.get(oldItemPosition)==filteredData.get(newItemPosition);
}
@Override
public boolean areContentsTheSame(int oldItemPosition, int newItemPosition){
return prevData.get(oldItemPosition)==filteredData.get(newItemPosition);
}
}).dispatchUpdatesTo(adapter);
}
private void showProgressDialog(){
instanceProgressDialog=new ProgressDialog(getActivity());
instanceProgressDialog.setMessage(getString(R.string.loading_instance));
instanceProgressDialog.setOnCancelListener(dialog->{
loadingInstanceRequest.cancel();
loadingInstanceRequest=null;
loadingInstanceDomain=null;
});
instanceProgressDialog.show();
}
private void loadInstanceInfo(String _domain){
String domain;
try{
domain=IDN.toASCII(_domain);
}catch(IllegalArgumentException x){
return;
}
Instance cachedInstance=instancesCache.get(domain);
if(cachedInstance!=null){
boolean found=false;
for(CatalogInstance ci:filteredData){
if(ci.domain.equals(currentSearchQuery)){
found=true;
break;
}
}
if(!found){
CatalogInstance ci=cachedInstance.toCatalogInstance();
filteredData.add(0, ci);
adapter.notifyItemInserted(0);
}
return;
}
if(loadingInstanceDomain!=null){
if(loadingInstanceDomain.equals(domain))
return;
else
loadingInstanceRequest.cancel();
}
loadingInstanceDomain=domain;
loadingInstanceRequest=new GetInstance();
loadingInstanceRequest.setCallback(new Callback<>(){
@Override
public void onSuccess(Instance result){
loadingInstanceRequest=null;
loadingInstanceDomain=null;
result.uri=domain; // needed for instances that use domain redirection
instancesCache.put(domain, result);
if(instanceProgressDialog!=null){
instanceProgressDialog.dismiss();
instanceProgressDialog=null;
proceedWithAuthOrSignup(result);
}
if(domain.equals(currentSearchQuery)){
boolean found=false;
for(CatalogInstance ci:filteredData){
if(ci.domain.equals(currentSearchQuery)){
found=true;
break;
}
}
if(!found){
CatalogInstance ci=result.toCatalogInstance();
filteredData.add(0, ci);
adapter.notifyItemInserted(0);
}
}
}
@Override
public void onError(ErrorResponse error){
loadingInstanceRequest=null;
loadingInstanceDomain=null;
if(instanceProgressDialog!=null){
instanceProgressDialog.dismiss();
instanceProgressDialog=null;
new AlertDialog.Builder(getActivity())
.setTitle(R.string.error)
.setMessage(getString(R.string.not_a_mastodon_instance, domain)+"\n\n"+((MastodonErrorResponse)error).error)
.setPositiveButton(R.string.ok, null)
.show();
}
}
}).execNoAuth(domain);
}
private class InstancesAdapter extends UsableRecyclerView.Adapter<InstanceViewHolder>{
public InstancesAdapter(){
super(imgLoader);
}
@NonNull
@Override
public InstanceViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType){
return new InstanceViewHolder();
}
@Override
public void onBindViewHolder(InstanceViewHolder holder, int position){
holder.bind(filteredData.get(position));
super.onBindViewHolder(holder, position);
}
@Override
public int getItemCount(){
return filteredData.size();
}
@Override
public int getItemViewType(int position){
return 1;
}
}
private class InstanceViewHolder extends BindableViewHolder<CatalogInstance> implements UsableRecyclerView.Clickable{
private final TextView title, description, userCount, lang;
private final RadioButton radioButton;
public InstanceViewHolder(){
super(getActivity(), R.layout.item_instance_catalog, list);
title=findViewById(R.id.title);
description=findViewById(R.id.description);
userCount=findViewById(R.id.user_count);
lang=findViewById(R.id.lang);
radioButton=findViewById(R.id.radiobtn);
}
@Override
public void onBind(CatalogInstance item){
title.setText(item.normalizedDomain);
description.setText(item.description);
userCount.setText(""+item.totalUsers);
lang.setText(item.language.toUpperCase());
radioButton.setChecked(chosenInstance==item);
}
@Override
public void onClick(){
if(chosenInstance==item)
return;
if(chosenInstance!=null){
int idx=filteredData.indexOf(chosenInstance);
if(idx!=-1){
RecyclerView.ViewHolder holder=list.findViewHolderForAdapterPosition(mergeAdapter.getPositionForAdapter(adapter)+idx);
if(holder instanceof InstanceViewHolder){
((InstanceViewHolder)holder).radioButton.setChecked(false);
}
}
}
radioButton.setChecked(true);
if(chosenInstance==null)
nextButton.setEnabled(true);
chosenInstance=item;
loadInstanceInfo(chosenInstance.domain);
}
}
private class CategoriesAdapter extends RecyclerView.Adapter<CategoryViewHolder>{
@NonNull
@Override
public CategoryViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType){
return new CategoryViewHolder();
}
@Override
public void onBindViewHolder(@NonNull CategoryViewHolder holder, int position){
holder.bind(categories.get(position));
}
@Override
public int getItemCount(){
return categories.size();
}
}
private class CategoryViewHolder extends BindableViewHolder<CatalogCategory> implements UsableRecyclerView.Clickable{
private final RadioButton radioButton;
public CategoryViewHolder(){
super(getActivity(), R.layout.item_instance_category, categoriesList);
radioButton=findViewById(R.id.radiobtn);
}
@Override
public void onBind(CatalogCategory item){
radioButton.setText(item.category);
radioButton.setChecked(item.category.equals(currentCategory));
}
@Override
public void onClick(){
if(currentCategory.equals(item.category))
return;
int i=0;
for(CatalogCategory c:categories){
if(c.category.equals(currentCategory)){
RecyclerView.ViewHolder holder=categoriesList.findViewHolderForAdapterPosition(i);
if(holder!=null){
((CategoryViewHolder)holder).radioButton.setChecked(false);
}
break;
}
i++;
}
currentCategory=item.category;
radioButton.setChecked(true);
updateFilteredList();
}
}
}