HomeActivity.java

/*
   Main/Home Activity
 
   Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz
 
   This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
   If a copy of the MPL was not distributed with this file, You can obtain one at
   http://mozilla.org/MPL/2.0/.
*/
 
package com.freerdp.freerdpcore.presentation;
 
import androidx.appcompat.app.AlertDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
 
import androidx.activity.OnBackPressedCallback;
import androidx.appcompat.widget.SearchView;
import androidx.lifecycle.ViewModelProvider;
import androidx.recyclerview.widget.LinearLayoutManager;
 
import com.freerdp.freerdpcore.R;
import com.freerdp.freerdpcore.databinding.HomeBinding;
import com.freerdp.freerdpcore.domain.ConnectionReference;
import com.freerdp.freerdpcore.utils.BookmarkListAdapter;
 
public class HomeActivity extends AppCompatActivity
{
  private static final String TAG = "HomeActivity";
  private static final String PARAM_SEARCH_QUERY = "search_query";
 
  private HomeBinding binding;
  private HomeViewModel viewModel;
  private BookmarkListAdapter bookmarkListAdapter;
  private MenuItem searchMenuItem;
  private SearchView searchView;
 
  @Override public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    binding = HomeBinding.inflate(getLayoutInflater());
    setContentView(binding.getRoot());
 
    long heapSize = Runtime.getRuntime().maxMemory();
    Log.i(TAG, "Max HeapSize: " + heapSize);
    Log.i(TAG, "App data folder: " + getFilesDir().toString());
 
    // check for passed .rdp file and open it in a new bookmark
    Intent caller = getIntent();
    Uri callParameter = caller.getData();
 
    if (Intent.ACTION_VIEW.equals(caller.getAction()) && callParameter != null)
    {
      String refStr = ConnectionReference.getFileReference(callParameter.getPath());
      Bundle bundle = new Bundle();
      bundle.putString(BookmarkActivity.PARAM_CONNECTION_REFERENCE, refStr);
 
      Intent bookmarkIntent =
          new Intent(this.getApplicationContext(), BookmarkActivity.class);
      bookmarkIntent.putExtras(bundle);
      startActivity(bookmarkIntent);
    }
 
    viewModel = new ViewModelProvider(this).get(HomeViewModel.class);
 
    bookmarkListAdapter = new BookmarkListAdapter();
    bookmarkListAdapter.setCallbacks(new BookmarkListAdapter.Callbacks() {
      @Override public void onItemClick(String refStr)
      {
        if (ConnectionReference.isBookmarkReference(refStr) ||
            ConnectionReference.isHostnameReference(refStr))
        {
          Bundle bundle = new Bundle();
          bundle.putString(SessionActivity.PARAM_CONNECTION_REFERENCE, refStr);
 
          Intent sessionIntent = new Intent(HomeActivity.this, SessionActivity.class);
          sessionIntent.putExtras(bundle);
          startActivity(sessionIntent);
 
          if (searchView != null)
          {
            searchView.setQuery("", false);
            searchView.setIconified(true);
          }
          if (searchMenuItem != null)
          {
            searchMenuItem.collapseActionView();
          }
          viewModel.loadBookmarks("");
        }
      }
 
      @Override public void onDelete(long id)
      {
        viewModel.deleteBookmark(id);
      }
    });
 
    binding.recyclerViewBookmarks.setLayoutManager(new LinearLayoutManager(this));
    binding.recyclerViewBookmarks.setAdapter(bookmarkListAdapter);
 
    viewModel.getBookmarks().observe(this,
                                     bookmarks -> bookmarkListAdapter.setItems(bookmarks));
 
    // restore search query after process death
    if (savedInstanceState != null)
    {
      String query = savedInstanceState.getString(PARAM_SEARCH_QUERY);
      if (query != null && !query.isEmpty() && viewModel.getCurrentQuery().isEmpty())
      {
        viewModel.loadBookmarks(query);
      }
    }
 
    getOnBackPressedDispatcher().addCallback(this, new OnBackPressedCallback(true) {
      @Override public void handleOnBackPressed()
      {
        if (ApplicationSettingsActivity.getAskOnExit(HomeActivity.this))
        {
          new AlertDialog.Builder(HomeActivity.this)
              .setTitle(R.string.dlg_title_exit)
              .setMessage(R.string.dlg_msg_exit)
              .setPositiveButton(R.string.yes, (dialog, which) -> finish())
              .setNegativeButton(R.string.no, (dialog, which) -> dialog.dismiss())
              .show();
        }
        else
        {
          finish();
        }
      }
    });
  }
 
  @Override protected void onResume()
  {
    super.onResume();
    Log.v(TAG, "HomeActivity.onResume");
    viewModel.loadBookmarks(viewModel.getCurrentQuery());
  }
 
  @Override protected void onSaveInstanceState(Bundle outState)
  {
    super.onSaveInstanceState(outState);
    outState.putString(PARAM_SEARCH_QUERY, viewModel.getCurrentQuery());
  }
 
  @Override public boolean onCreateOptionsMenu(Menu menu)
  {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.home_menu, menu);
    setupSearchView(menu);
    return true;
  }
 
  @Override public boolean onOptionsItemSelected(MenuItem item)
  {
    // refer to http://tools.android.com/tips/non-constant-fields why we can't use switch/case
    // here ..
    int itemId = item.getItemId();
    if (itemId == R.id.newBookmark)
    {
      Intent bookmarkIntent = new Intent(this, BookmarkActivity.class);
      startActivity(bookmarkIntent);
    }
    else if (itemId == R.id.appSettings)
    {
      Intent settingsIntent = new Intent(this, ApplicationSettingsActivity.class);
      startActivity(settingsIntent);
    }
    else if (itemId == R.id.help)
    {
      Intent helpIntent = new Intent(this, HelpActivity.class);
      startActivity(helpIntent);
    }
    else if (itemId == R.id.about)
    {
      Intent aboutIntent = new Intent(this, AboutActivity.class);
      startActivity(aboutIntent);
    }
 
    return true;
  }
 
  private void setupSearchView(Menu menu)
  {
    searchMenuItem = menu.findItem(R.id.action_search);
    if (searchMenuItem != null)
    {
      searchView = (SearchView)searchMenuItem.getActionView();
 
      String currentQuery = viewModel.getCurrentQuery();
      if (currentQuery != null && !currentQuery.isEmpty())
      {
        searchMenuItem.expandActionView();
        searchView.setQuery(currentQuery, false);
        searchView.clearFocus();
      }
 
      searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
        @Override public boolean onQueryTextSubmit(String query)
        {
          return true;
        }
 
        @Override public boolean onQueryTextChange(String s)
        {
          viewModel.loadBookmarks(s);
          return true;
        }
      });
    }
  }
}