android/source/src/java/org/libreoffice/ui/LibreOfficeUIActivity.java

   1 /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 package org.libreoffice.ui;
  11
  12 import android.Manifest;
  13 import android.content.ActivityNotFoundException;
  14 import android.content.ComponentName;
  15 import android.content.Context;
  16 import android.content.Intent;
  17 import android.content.SharedPreferences;
  18 import android.content.pm.PackageManager;
  19 import android.content.pm.ShortcutInfo;
  20 import android.content.pm.ShortcutManager;
  21 import android.graphics.drawable.Icon;
  22 import android.net.Uri;
  23 import android.os.Build;
  24 import android.os.Bundle;
  25 import android.preference.PreferenceManager;
  26 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  27 import androidx.core.app.ActivityCompat;
  28 import androidx.core.content.ContextCompat;
  29 import androidx.core.view.ViewCompat;
  30 import androidx.appcompat.app.ActionBar;
  31 import androidx.appcompat.app.AppCompatActivity;
  32 import androidx.recyclerview.widget.GridLayoutManager;
  33 import androidx.recyclerview.widget.RecyclerView;
  34 import androidx.appcompat.widget.Toolbar;
  35 import android.text.TextUtils;
  36 import android.util.Log;
  37 import android.view.Menu;
  38 import android.view.MenuInflater;
  39 import android.view.MenuItem;
  40 import android.view.View;
  41 import android.view.animation.Animation;
  42 import android.view.animation.AnimationUtils;
  43 import android.view.animation.OvershootInterpolator;
  44 import android.widget.LinearLayout;
  45 import android.widget.TextView;
  46
  47 import org.libreoffice.AboutDialogFragment;
  48 import org.libreoffice.BuildConfig;
  49 import org.libreoffice.LibreOfficeMainActivity;
  50 import org.libreoffice.LocaleHelper;
  51 import org.libreoffice.R;
  52 import org.libreoffice.SettingsActivity;
  53 import org.libreoffice.SettingsListenerModel;
  54
  55 import java.util.ArrayList;
  56 import java.util.Arrays;
  57 import java.util.List;
  58
  59 public class LibreOfficeUIActivity extends AppCompatActivity implements SettingsListenerModel.OnSettingsPreferenceChangedListener, View.OnClickListener{
  60     public enum DocumentType {
  61         WRITER,
  62         CALC,
  63         IMPRESS,
  64         DRAW,
  65         INVALID
  66     }
  67
  68     private static final String LOGTAG = LibreOfficeUIActivity.class.getSimpleName();
  69
  70     public static final String EXPLORER_PREFS_KEY = "EXPLORER_PREFS";
  71     private static final String RECENT_DOCUMENTS_KEY = "RECENT_DOCUMENT_URIS";
  72     // delimiter used for storing multiple URIs in a string
  73     private static final String RECENT_DOCUMENTS_DELIMITER = " ";
  74     private static final String DISPLAY_LANGUAGE = "DISPLAY_LANGUAGE";
  75
  76     public static final String NEW_DOC_TYPE_KEY = "NEW_DOC_TYPE_KEY";
  77     public static final String NEW_WRITER_STRING_KEY = "private:factory/swriter";
  78     public static final String NEW_IMPRESS_STRING_KEY = "private:factory/simpress";
  79     public static final String NEW_CALC_STRING_KEY = "private:factory/scalc";
  80     public static final String NEW_DRAW_STRING_KEY = "private:factory/sdraw";
  81
  82     // keep this in sync with 'AndroidManifext.xml'
  83     private static final String[] SUPPORTED_MIME_TYPES = {
  84             "application/vnd.oasis.opendocument.text",
  85             "application/vnd.oasis.opendocument.graphics",
  86             "application/vnd.oasis.opendocument.presentation",
  87             "application/vnd.oasis.opendocument.spreadsheet",
  88             "application/vnd.oasis.opendocument.text-flat-xml",
  89             "application/vnd.oasis.opendocument.graphics-flat-xml",
  90             "application/vnd.oasis.opendocument.presentation-flat-xml",
  91             "application/vnd.oasis.opendocument.spreadsheet-flat-xml",
  92             "application/vnd.oasis.opendocument.text-template",
  93             "application/vnd.oasis.opendocument.spreadsheet-template",
  94             "application/vnd.oasis.opendocument.graphics-template",
  95             "application/vnd.oasis.opendocument.presentation-template",
  96             "application/rtf",
  97             "text/rtf",
  98             "application/msword",
  99             "application/vnd.ms-powerpoint",
 100             "application/vnd.ms-excel",
 101             "application/vnd.visio",
 102             "application/vnd.visio.xml",
 103             "application/x-mspublisher",
 104             "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
 105             "application/vnd.openxmlformats-officedocument.presentationml.presentation",
 106             "application/vnd.openxmlformats-officedocument.presentationml.slideshow",
 107             "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
 108             "application/vnd.openxmlformats-officedocument.wordprocessingml.template",
 109             "application/vnd.openxmlformats-officedocument.spreadsheetml.template",
 110             "application/vnd.openxmlformats-officedocument.presentationml.template",
 111             "text/csv",
 112             "text/comma-separated-values",
 113             "application/vnd.ms-works",
 114             "application/vnd.apple.keynote",
 115             "application/x-abiword",
 116             "application/x-pagemaker",
 117             "image/x-emf",
 118             "image/x-svm",
 119             "image/x-wmf",
 120             "image/svg+xml",
 121     };
 122
 123     private static final int REQUEST_CODE_OPEN_FILECHOOSER = 12345;
 124
 125     private static final int PERMISSION_WRITE_EXTERNAL_STORAGE = 0;
 126
 127     private Animation fabOpenAnimation;
 128     private Animation fabCloseAnimation;
 129     private boolean isFabMenuOpen = false;
 130     private FloatingActionButton editFAB;
 131     private FloatingActionButton writerFAB;
 132     private FloatingActionButton drawFAB;
 133     private FloatingActionButton impressFAB;
 134     private FloatingActionButton calcFAB;
 135     private LinearLayout drawLayout;
 136     private LinearLayout writerLayout;
 137     private LinearLayout impressLayout;
 138     private LinearLayout calcLayout;
 139
 140     @Override
 141     public void onCreate(Bundle savedInstanceState) {
 142         super.onCreate(savedInstanceState);
 143
 144         readPreferences();
 145         SettingsListenerModel.getInstance().setListener(this);
 146
 147         // init UI
 148         createUI();
 149         fabOpenAnimation = AnimationUtils.loadAnimation(this, R.anim.fab_open);
 150         fabCloseAnimation = AnimationUtils.loadAnimation(this, R.anim.fab_close);
 151     }
 152
 153     @Override
 154     protected void onStart() {
 155         super.onStart();
 156         if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 157             Log.i(LOGTAG, "no permission to read external storage - asking for permission");
 158             ActivityCompat.requestPermissions(this,
 159                 new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
 160                 PERMISSION_WRITE_EXTERNAL_STORAGE);
 161         }
 162     }
 163
 164     @Override
 165     protected void attachBaseContext(Context newBase) {
 166         super.attachBaseContext(LocaleHelper.onAttach(newBase));
 167     }
 168
 169     public void createUI() {
 170         setContentView(R.layout.activity_document_browser);
 171
 172         Toolbar toolbar = findViewById(R.id.toolbar);
 173         setSupportActionBar(toolbar);
 174         ActionBar actionBar = getSupportActionBar();
 175
 176         if (actionBar != null) {
 177             actionBar.setIcon(R.mipmap.ic_launcher);
 178         }
 179
 180         editFAB = findViewById(R.id.editFAB);
 181         editFAB.setOnClickListener(this);
 182         // allow creating new docs only when experimental editing is enabled
 183         SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
 184         final boolean bEditingEnabled = BuildConfig.ALLOW_EDITING && preferences.getBoolean(LibreOfficeMainActivity.ENABLE_EXPERIMENTAL_PREFS_KEY, false);
 185         editFAB.setVisibility(bEditingEnabled ? View.VISIBLE : View.INVISIBLE);
 186
 187         impressFAB = findViewById(R.id.newImpressFAB);
 188         impressFAB.setOnClickListener(this);
 189         writerFAB = findViewById(R.id.newWriterFAB);
 190         writerFAB.setOnClickListener(this);
 191         calcFAB = findViewById(R.id.newCalcFAB);
 192         calcFAB.setOnClickListener(this);
 193         drawFAB = findViewById(R.id.newDrawFAB);
 194         drawFAB.setOnClickListener(this);
 195         writerLayout = findViewById(R.id.writerLayout);
 196         impressLayout = findViewById(R.id.impressLayout);
 197         calcLayout = findViewById(R.id.calcLayout);
 198         drawLayout = findViewById(R.id.drawLayout);
 199         TextView openFileView = findViewById(R.id.open_file_button);
 200         openFileView.setOnClickListener(this);
 201
 202
 203         RecyclerView recentRecyclerView = findViewById(R.id.list_recent);
 204
 205         SharedPreferences prefs = getSharedPreferences(EXPLORER_PREFS_KEY, MODE_PRIVATE);
 206         String recentPref = prefs.getString(RECENT_DOCUMENTS_KEY, "");
 207         String[] recentFileStrings = recentPref.split(RECENT_DOCUMENTS_DELIMITER);
 208
 209         final List<RecentFile> recentFiles = new ArrayList<>();
 210         for (String recentFileString : recentFileStrings) {
 211             Uri uri = Uri.parse(recentFileString);
 212             String filename = FileUtilities.retrieveDisplayNameForDocumentUri(getContentResolver(), uri);
 213             if (!filename.isEmpty()) {
 214                 recentFiles.add(new RecentFile(uri, filename));
 215             }
 216         }
 217
 218         recentRecyclerView.setLayoutManager(new GridLayoutManager(this, 2));
 219         recentRecyclerView.setAdapter(new RecentFilesAdapter(this, recentFiles));
 220     }
 221
 222     private void expandFabMenu() {
 223         ViewCompat.animate(editFAB).rotation(45.0F).withLayer().setDuration(300).setInterpolator(new OvershootInterpolator(10.0F)).start();
 224         drawLayout.startAnimation(fabOpenAnimation);
 225         impressLayout.startAnimation(fabOpenAnimation);
 226         writerLayout.startAnimation(fabOpenAnimation);
 227         calcLayout.startAnimation(fabOpenAnimation);
 228         writerFAB.setClickable(true);
 229         impressFAB.setClickable(true);
 230         drawFAB.setClickable(true);
 231         calcFAB.setClickable(true);
 232         isFabMenuOpen = true;
 233     }
 234
 235     private void collapseFabMenu() {
 236         ViewCompat.animate(editFAB).rotation(0.0F).withLayer().setDuration(300).setInterpolator(new OvershootInterpolator(10.0F)).start();
 237         writerLayout.startAnimation(fabCloseAnimation);
 238         impressLayout.startAnimation(fabCloseAnimation);
 239         drawLayout.startAnimation(fabCloseAnimation);
 240         calcLayout.startAnimation(fabCloseAnimation);
 241         writerFAB.setClickable(false);
 242         impressFAB.setClickable(false);
 243         drawFAB.setClickable(false);
 244         calcFAB.setClickable(false);
 245         isFabMenuOpen = false;
 246     }
 247
 248     @Override
 249     public void onBackPressed() {
 250         if (isFabMenuOpen) {
 251             collapseFabMenu();
 252         } else {
 253             super.onBackPressed();
 254         }
 255     }
 256
 257     @Override
 258     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 259         super.onActivityResult(requestCode, resultCode, data);
 260         if (requestCode == REQUEST_CODE_OPEN_FILECHOOSER && resultCode == RESULT_OK) {
 261             final Uri fileUri = data.getData();
 262             openDocument(fileUri);
 263         }
 264     }
 265
 266     private void showSystemFilePickerAndOpenFile() {
 267         Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
 268         intent.setType("*/*");
 269         intent.putExtra(Intent.EXTRA_MIME_TYPES, SUPPORTED_MIME_TYPES);
 270
 271         try {
 272             startActivityForResult(intent, REQUEST_CODE_OPEN_FILECHOOSER);
 273         } catch (ActivityNotFoundException e) {
 274             Log.w(LOGTAG, "No activity available that can handle the intent to open a document.");
 275         }
 276     }
 277
 278     public void openDocument(final Uri documentUri) {
 279         // "forward" to LibreOfficeMainActivity to open the file
 280         Intent intent = new Intent(Intent.ACTION_VIEW, documentUri);
 281         intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 282
 283         addDocumentToRecents(documentUri);
 284
 285         String packageName = getApplicationContext().getPackageName();
 286         ComponentName componentName = new ComponentName(packageName,
 287             LibreOfficeMainActivity.class.getName());
 288         intent.setComponent(componentName);
 289         startActivity(intent);
 290     }
 291
 292     private void loadNewDocument(DocumentType docType) {
 293         final String newDocumentType;
 294         if (docType == DocumentType.WRITER) {
 295             newDocumentType = NEW_WRITER_STRING_KEY;
 296         } else if (docType == DocumentType.CALC) {
 297             newDocumentType = NEW_CALC_STRING_KEY;
 298         } else if (docType == DocumentType.IMPRESS) {
 299             newDocumentType = NEW_IMPRESS_STRING_KEY;
 300         } else if (docType == DocumentType.DRAW) {
 301             newDocumentType = NEW_DRAW_STRING_KEY;
 302         } else {
 303             Log.w(LOGTAG, "invalid document type passed to loadNewDocument method. Ignoring request");
 304             return;
 305         }
 306
 307         Intent intent = new Intent(LibreOfficeUIActivity.this, LibreOfficeMainActivity.class);
 308         intent.putExtra(NEW_DOC_TYPE_KEY, newDocumentType);
 309         startActivity(intent);
 310     }
 311
 312     @Override
 313     public boolean onCreateOptionsMenu(Menu menu) {
 314         MenuInflater inflater = getMenuInflater();
 315         inflater.inflate(R.menu.view_menu, menu);
 316
 317         return true;
 318     }
 319
 320     @Override
 321     public boolean onOptionsItemSelected(MenuItem item) {
 322         final int itemId = item.getItemId();
 323         if (itemId == R.id.action_about) {
 324             AboutDialogFragment aboutDialogFragment = new AboutDialogFragment();
 325             aboutDialogFragment.show(getSupportFragmentManager(), "AboutDialogFragment");
 326             return true;
 327         }
 328         if (itemId == R.id.action_settings) {
 329             startActivity(new Intent(getApplicationContext(), SettingsActivity.class));
 330             return true;
 331         }
 332
 333         return super.onOptionsItemSelected(item);
 334     }
 335
 336     public void readPreferences(){
 337         SharedPreferences defaultPrefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
 338         final String displayLanguage = defaultPrefs.getString(DISPLAY_LANGUAGE, LocaleHelper.SYSTEM_DEFAULT_LANGUAGE);
 339         LocaleHelper.setLocale(this, displayLanguage);
 340     }
 341
 342     @Override
 343     public void settingsPreferenceChanged(SharedPreferences sharedPreferences, String key) {
 344         readPreferences();
 345     }
 346
 347     @Override
 348     protected void onResume() {
 349         super.onResume();
 350         Log.d(LOGTAG, "onResume");
 351         createUI();
 352     }
 353
 354     private void addDocumentToRecents(Uri fileUri) {
 355         SharedPreferences prefs = getSharedPreferences(EXPLORER_PREFS_KEY, MODE_PRIVATE);
 356
 357         // preserve permissions across device reboots,
 358         // s. https://developer.android.com/training/data-storage/shared/documents-files#persist-permissions
 359         getContentResolver().takePersistableUriPermission(fileUri, Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 360
 361         String newRecent = fileUri.toString();
 362         List<String> recentsList = new ArrayList<>(Arrays.asList(prefs.getString(RECENT_DOCUMENTS_KEY, "").split(RECENT_DOCUMENTS_DELIMITER)));
 363
 364         // remove string if present, so that it doesn't appear multiple times
 365         recentsList.remove(newRecent);
 366
 367         // put the new value in the first place
 368         recentsList.add(0, newRecent);
 369
 370         /*
 371          * 4 because the number of recommended items in App Shortcuts is 4, and also
 372          * because it's a good number of recent items in general
 373          */
 374         final int RECENTS_SIZE = 4;
 375
 376         while (recentsList.size() > RECENTS_SIZE) {
 377             recentsList.remove(RECENTS_SIZE);
 378         }
 379
 380         // serialize to String that can be set for pref
 381         String value = TextUtils.join(RECENT_DOCUMENTS_DELIMITER, recentsList);
 382         prefs.edit().putString(RECENT_DOCUMENTS_KEY, value).apply();
 383
 384         //update app shortcuts (7.0 and above)
 385         if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N_MR1) {
 386             ShortcutManager shortcutManager = getSystemService(ShortcutManager.class);
 387
 388             //Remove all shortcuts, and apply new ones.
 389             shortcutManager.removeAllDynamicShortcuts();
 390
 391             ArrayList<ShortcutInfo> shortcuts = new ArrayList<>();
 392             for (String recentDoc : recentsList) {
 393                 Uri docUri = Uri.parse(recentDoc);
 394                 String filename = FileUtilities.retrieveDisplayNameForDocumentUri(getContentResolver(), docUri);
 395                 if (filename.isEmpty()) {
 396                     continue;
 397                 }
 398
 399                 //find the appropriate drawable
 400                 int drawable = 0;
 401                 switch (FileUtilities.getType(filename)) {
 402                     case FileUtilities.DOC:
 403                         drawable = R.drawable.writer;
 404                         break;
 405                     case FileUtilities.CALC:
 406                         drawable = R.drawable.calc;
 407                         break;
 408                     case FileUtilities.DRAWING:
 409                         drawable = R.drawable.draw;
 410                         break;
 411                     case FileUtilities.IMPRESS:
 412                         drawable = R.drawable.impress;
 413                         break;
 414                 }
 415
 416                 Intent intent = new Intent(Intent.ACTION_VIEW, docUri);
 417                 String packageName = this.getApplicationContext().getPackageName();
 418                 ComponentName componentName = new ComponentName(packageName, LibreOfficeMainActivity.class.getName());
 419                 intent.setComponent(componentName);
 420
 421                 ShortcutInfo shortcut = new ShortcutInfo.Builder(this, filename)
 422                         .setShortLabel(filename)
 423                         .setLongLabel(filename)
 424                         .setIcon(Icon.createWithResource(this, drawable))
 425                         .setIntent(intent)
 426                         .build();
 427
 428                 shortcuts.add(shortcut);
 429             }
 430             shortcutManager.setDynamicShortcuts(shortcuts);
 431         }
 432     }
 433
 434     @Override
 435     public void onClick(View v) {
 436         int id = v.getId();
 437         if (id == R.id.editFAB) {
 438             if (isFabMenuOpen) {
 439                 collapseFabMenu();
 440             } else {
 441                 expandFabMenu();
 442             }
 443         } else if (id == R.id.open_file_button) {
 444             showSystemFilePickerAndOpenFile();
 445         } else if (id == R.id.newWriterFAB) {
 446             loadNewDocument(DocumentType.WRITER);
 447         } else if (id == R.id.newImpressFAB) {
 448             loadNewDocument(DocumentType.IMPRESS);
 449         } else if (id == R.id.newCalcFAB) {
 450             loadNewDocument(DocumentType.CALC);
 451         } else if (id == R.id.newDrawFAB) {
 452             loadNewDocument(DocumentType.DRAW);
 453         }
 454     }
 455 }
 456
 457 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */