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.Bundle;
  24 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  25 import androidx.core.app.ActivityCompat;
  26 import androidx.core.content.ContextCompat;
  27 import androidx.core.view.ViewCompat;
  28 import androidx.appcompat.app.ActionBar;
  29 import androidx.appcompat.app.AppCompatActivity;
  30 import androidx.recyclerview.widget.GridLayoutManager;
  31 import androidx.recyclerview.widget.RecyclerView;
  32 import androidx.preference.PreferenceManager;
  33 import androidx.appcompat.widget.Toolbar;
  34 import android.text.TextUtils;
  35 import android.util.Log;
  36 import android.view.Menu;
  37 import android.view.MenuInflater;
  38 import android.view.MenuItem;
  39 import android.view.View;
  40 import android.view.animation.Animation;
  41 import android.view.animation.AnimationUtils;
  42 import android.view.animation.OvershootInterpolator;
  43 import android.widget.LinearLayout;
  44 import android.widget.TextView;
  45
  46 import org.libreoffice.AboutDialogFragment;
  47 import org.libreoffice.BuildConfig;
  48 import org.libreoffice.LibreOfficeMainActivity;
  49 import org.libreoffice.R;
  50 import org.libreoffice.SettingsActivity;
  51
  52 import java.util.ArrayList;
  53 import java.util.Arrays;
  54 import java.util.List;
  55
  56 public class LibreOfficeUIActivity extends AppCompatActivity implements View.OnClickListener{
  57     public enum DocumentType {
  58         WRITER,
  59         CALC,
  60         IMPRESS,
  61         DRAW,
  62         INVALID
  63     }
  64
  65     private static final String LOGTAG = LibreOfficeUIActivity.class.getSimpleName();
  66
  67     public static final String EXPLORER_PREFS_KEY = "EXPLORER_PREFS";
  68     private static final String RECENT_DOCUMENTS_KEY = "RECENT_DOCUMENT_URIS";
  69     // delimiter used for storing multiple URIs in a string
  70     private static final String RECENT_DOCUMENTS_DELIMITER = " ";
  71
  72     public static final String NEW_DOC_TYPE_KEY = "NEW_DOC_TYPE_KEY";
  73     public static final String NEW_WRITER_STRING_KEY = "private:factory/swriter";
  74     public static final String NEW_IMPRESS_STRING_KEY = "private:factory/simpress";
  75     public static final String NEW_CALC_STRING_KEY = "private:factory/scalc";
  76     public static final String NEW_DRAW_STRING_KEY = "private:factory/sdraw";
  77
  78     // keep this in sync with 'AndroidManifext.xml'
  79     private static final String[] SUPPORTED_MIME_TYPES = {
  80             "application/vnd.oasis.opendocument.text",
  81             "application/vnd.oasis.opendocument.graphics",
  82             "application/vnd.oasis.opendocument.presentation",
  83             "application/vnd.oasis.opendocument.spreadsheet",
  84             "application/vnd.oasis.opendocument.text-flat-xml",
  85             "application/vnd.oasis.opendocument.graphics-flat-xml",
  86             "application/vnd.oasis.opendocument.presentation-flat-xml",
  87             "application/vnd.oasis.opendocument.spreadsheet-flat-xml",
  88             "application/vnd.oasis.opendocument.text-template",
  89             "application/vnd.oasis.opendocument.spreadsheet-template",
  90             "application/vnd.oasis.opendocument.graphics-template",
  91             "application/vnd.oasis.opendocument.presentation-template",
  92             "application/rtf",
  93             "text/rtf",
  94             "application/msword",
  95             "application/vnd.ms-powerpoint",
  96             "application/vnd.ms-excel",
  97             "application/vnd.visio",
  98             "application/vnd.visio2013",
  99             "application/vnd.visio.xml",
 100             "application/x-mspublisher",
 101             "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
 102             "application/vnd.openxmlformats-officedocument.presentationml.presentation",
 103             "application/vnd.openxmlformats-officedocument.presentationml.slideshow",
 104             "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
 105             "application/vnd.openxmlformats-officedocument.wordprocessingml.template",
 106             "application/vnd.openxmlformats-officedocument.spreadsheetml.template",
 107             "application/vnd.openxmlformats-officedocument.presentationml.template",
 108             "text/csv",
 109             "text/comma-separated-values",
 110             "application/vnd.ms-works",
 111             "application/vnd.apple.keynote",
 112             "application/x-abiword",
 113             "application/x-pagemaker",
 114             "image/x-emf",
 115             "image/x-svm",
 116             "image/x-wmf",
 117             "image/svg+xml",
 118     };
 119
 120     private static final int REQUEST_CODE_OPEN_FILECHOOSER = 12345;
 121
 122     private static final int PERMISSION_WRITE_EXTERNAL_STORAGE = 0;
 123
 124     private Animation fabOpenAnimation;
 125     private Animation fabCloseAnimation;
 126     private boolean isFabMenuOpen = false;
 127     private FloatingActionButton editFAB;
 128     private FloatingActionButton writerFAB;
 129     private FloatingActionButton drawFAB;
 130     private FloatingActionButton impressFAB;
 131     private FloatingActionButton calcFAB;
 132     private LinearLayout drawLayout;
 133     private LinearLayout writerLayout;
 134     private LinearLayout impressLayout;
 135     private LinearLayout calcLayout;
 136
 137     @Override
 138     public void onCreate(Bundle savedInstanceState) {
 139         super.onCreate(savedInstanceState);
 140
 141         // init UI
 142         createUI();
 143         fabOpenAnimation = AnimationUtils.loadAnimation(this, R.anim.fab_open);
 144         fabCloseAnimation = AnimationUtils.loadAnimation(this, R.anim.fab_close);
 145     }
 146
 147     @Override
 148     protected void onStart() {
 149         super.onStart();
 150         if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 151             Log.i(LOGTAG, "no permission to read external storage - asking for permission");
 152             ActivityCompat.requestPermissions(this,
 153                 new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
 154                 PERMISSION_WRITE_EXTERNAL_STORAGE);
 155         }
 156     }
 157
 158     public void createUI() {
 159         setContentView(R.layout.activity_document_browser);
 160
 161         Toolbar toolbar = findViewById(R.id.toolbar);
 162         setSupportActionBar(toolbar);
 163         ActionBar actionBar = getSupportActionBar();
 164
 165         if (actionBar != null) {
 166             actionBar.setIcon(R.mipmap.ic_launcher);
 167         }
 168
 169         editFAB = findViewById(R.id.editFAB);
 170         editFAB.setOnClickListener(this);
 171         // allow creating new docs only when experimental editing is enabled
 172         SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
 173         final boolean bEditingEnabled = BuildConfig.ALLOW_EDITING && preferences.getBoolean(LibreOfficeMainActivity.ENABLE_EXPERIMENTAL_PREFS_KEY, false);
 174         editFAB.setVisibility(bEditingEnabled ? View.VISIBLE : View.INVISIBLE);
 175
 176         impressFAB = findViewById(R.id.newImpressFAB);
 177         impressFAB.setOnClickListener(this);
 178         writerFAB = findViewById(R.id.newWriterFAB);
 179         writerFAB.setOnClickListener(this);
 180         calcFAB = findViewById(R.id.newCalcFAB);
 181         calcFAB.setOnClickListener(this);
 182         drawFAB = findViewById(R.id.newDrawFAB);
 183         drawFAB.setOnClickListener(this);
 184         writerLayout = findViewById(R.id.writerLayout);
 185         impressLayout = findViewById(R.id.impressLayout);
 186         calcLayout = findViewById(R.id.calcLayout);
 187         drawLayout = findViewById(R.id.drawLayout);
 188         TextView openFileView = findViewById(R.id.open_file_button);
 189         openFileView.setOnClickListener(this);
 190
 191
 192         RecyclerView recentRecyclerView = findViewById(R.id.list_recent);
 193
 194         SharedPreferences prefs = getSharedPreferences(EXPLORER_PREFS_KEY, MODE_PRIVATE);
 195         String recentPref = prefs.getString(RECENT_DOCUMENTS_KEY, "");
 196         String[] recentFileStrings = recentPref.split(RECENT_DOCUMENTS_DELIMITER);
 197
 198         final List<RecentFile> recentFiles = new ArrayList<>();
 199         for (String recentFileString : recentFileStrings) {
 200             Uri uri = Uri.parse(recentFileString);
 201             String filename = FileUtilities.retrieveDisplayNameForDocumentUri(getContentResolver(), uri);
 202             if (!filename.isEmpty()) {
 203                 recentFiles.add(new RecentFile(uri, filename));
 204             }
 205         }
 206
 207         recentRecyclerView.setLayoutManager(new GridLayoutManager(this, 2));
 208         recentRecyclerView.setAdapter(new RecentFilesAdapter(this, recentFiles));
 209     }
 210
 211     private void expandFabMenu() {
 212         ViewCompat.animate(editFAB).rotation(45.0F).withLayer().setDuration(300).setInterpolator(new OvershootInterpolator(10.0F)).start();
 213         drawLayout.startAnimation(fabOpenAnimation);
 214         impressLayout.startAnimation(fabOpenAnimation);
 215         writerLayout.startAnimation(fabOpenAnimation);
 216         calcLayout.startAnimation(fabOpenAnimation);
 217         writerFAB.setClickable(true);
 218         impressFAB.setClickable(true);
 219         drawFAB.setClickable(true);
 220         calcFAB.setClickable(true);
 221         isFabMenuOpen = true;
 222     }
 223
 224     private void collapseFabMenu() {
 225         ViewCompat.animate(editFAB).rotation(0.0F).withLayer().setDuration(300).setInterpolator(new OvershootInterpolator(10.0F)).start();
 226         writerLayout.startAnimation(fabCloseAnimation);
 227         impressLayout.startAnimation(fabCloseAnimation);
 228         drawLayout.startAnimation(fabCloseAnimation);
 229         calcLayout.startAnimation(fabCloseAnimation);
 230         writerFAB.setClickable(false);
 231         impressFAB.setClickable(false);
 232         drawFAB.setClickable(false);
 233         calcFAB.setClickable(false);
 234         isFabMenuOpen = false;
 235     }
 236
 237     @Override
 238     public void onBackPressed() {
 239         if (isFabMenuOpen) {
 240             collapseFabMenu();
 241         } else {
 242             super.onBackPressed();
 243         }
 244     }
 245
 246     @Override
 247     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 248         super.onActivityResult(requestCode, resultCode, data);
 249         if (requestCode == REQUEST_CODE_OPEN_FILECHOOSER && resultCode == RESULT_OK) {
 250             final Uri fileUri = data.getData();
 251             openDocument(fileUri);
 252         }
 253     }
 254
 255     private void showSystemFilePickerAndOpenFile() {
 256         Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
 257         intent.setType("*/*");
 258         intent.putExtra(Intent.EXTRA_MIME_TYPES, SUPPORTED_MIME_TYPES);
 259
 260         try {
 261             startActivityForResult(intent, REQUEST_CODE_OPEN_FILECHOOSER);
 262         } catch (ActivityNotFoundException e) {
 263             Log.w(LOGTAG, "No activity available that can handle the intent to open a document.");
 264         }
 265     }
 266
 267     public void openDocument(final Uri documentUri) {
 268         // "forward" to LibreOfficeMainActivity to open the file
 269         Intent intent = new Intent(Intent.ACTION_VIEW, documentUri);
 270         intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 271
 272         addDocumentToRecents(documentUri);
 273
 274         String packageName = getApplicationContext().getPackageName();
 275         ComponentName componentName = new ComponentName(packageName,
 276             LibreOfficeMainActivity.class.getName());
 277         intent.setComponent(componentName);
 278         startActivity(intent);
 279     }
 280
 281     private void loadNewDocument(DocumentType docType) {
 282         final String newDocumentType;
 283         if (docType == DocumentType.WRITER) {
 284             newDocumentType = NEW_WRITER_STRING_KEY;
 285         } else if (docType == DocumentType.CALC) {
 286             newDocumentType = NEW_CALC_STRING_KEY;
 287         } else if (docType == DocumentType.IMPRESS) {
 288             newDocumentType = NEW_IMPRESS_STRING_KEY;
 289         } else if (docType == DocumentType.DRAW) {
 290             newDocumentType = NEW_DRAW_STRING_KEY;
 291         } else {
 292             Log.w(LOGTAG, "invalid document type passed to loadNewDocument method. Ignoring request");
 293             return;
 294         }
 295
 296         Intent intent = new Intent(LibreOfficeUIActivity.this, LibreOfficeMainActivity.class);
 297         intent.putExtra(NEW_DOC_TYPE_KEY, newDocumentType);
 298         startActivity(intent);
 299     }
 300
 301     @Override
 302     public boolean onCreateOptionsMenu(Menu menu) {
 303         MenuInflater inflater = getMenuInflater();
 304         inflater.inflate(R.menu.view_menu, menu);
 305
 306         return true;
 307     }
 308
 309     @Override
 310     public boolean onOptionsItemSelected(MenuItem item) {
 311         final int itemId = item.getItemId();
 312         if (itemId == R.id.action_about) {
 313             AboutDialogFragment aboutDialogFragment = new AboutDialogFragment();
 314             aboutDialogFragment.show(getSupportFragmentManager(), "AboutDialogFragment");
 315             return true;
 316         }
 317         if (itemId == R.id.action_settings) {
 318             startActivity(new Intent(getApplicationContext(), SettingsActivity.class));
 319             return true;
 320         }
 321
 322         return super.onOptionsItemSelected(item);
 323     }
 324
 325     @Override
 326     protected void onResume() {
 327         super.onResume();
 328         Log.d(LOGTAG, "onResume");
 329         createUI();
 330     }
 331
 332     private void addDocumentToRecents(Uri fileUri) {
 333         SharedPreferences prefs = getSharedPreferences(EXPLORER_PREFS_KEY, MODE_PRIVATE);
 334
 335         // preserve permissions across device reboots,
 336         // s. https://developer.android.com/training/data-storage/shared/documents-files#persist-permissions
 337         getContentResolver().takePersistableUriPermission(fileUri, Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 338
 339         String newRecent = fileUri.toString();
 340         List<String> recentsList = new ArrayList<>(Arrays.asList(prefs.getString(RECENT_DOCUMENTS_KEY, "").split(RECENT_DOCUMENTS_DELIMITER)));
 341
 342         // remove string if present, so that it doesn't appear multiple times
 343         recentsList.remove(newRecent);
 344
 345         // put the new value in the first place
 346         recentsList.add(0, newRecent);
 347
 348         /*
 349          * 4 because the number of recommended items in App Shortcuts is 4, and also
 350          * because it's a good number of recent items in general
 351          */
 352         final int RECENTS_SIZE = 4;
 353
 354         while (recentsList.size() > RECENTS_SIZE) {
 355             recentsList.remove(RECENTS_SIZE);
 356         }
 357
 358         // serialize to String that can be set for pref
 359         String value = TextUtils.join(RECENT_DOCUMENTS_DELIMITER, recentsList);
 360         prefs.edit().putString(RECENT_DOCUMENTS_KEY, value).apply();
 361
 362         //update app shortcuts (7.0 and above)
 363         if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N_MR1) {
 364             ShortcutManager shortcutManager = getSystemService(ShortcutManager.class);
 365
 366             //Remove all shortcuts, and apply new ones.
 367             shortcutManager.removeAllDynamicShortcuts();
 368
 369             ArrayList<ShortcutInfo> shortcuts = new ArrayList<>();
 370             for (String recentDoc : recentsList) {
 371                 Uri docUri = Uri.parse(recentDoc);
 372                 String filename = FileUtilities.retrieveDisplayNameForDocumentUri(getContentResolver(), docUri);
 373                 if (filename.isEmpty()) {
 374                     continue;
 375                 }
 376
 377                 //find the appropriate drawable
 378                 int drawable = 0;
 379                 switch (FileUtilities.getType(filename)) {
 380                     case FileUtilities.DOC:
 381                         drawable = R.drawable.writer;
 382                         break;
 383                     case FileUtilities.CALC:
 384                         drawable = R.drawable.calc;
 385                         break;
 386                     case FileUtilities.DRAWING:
 387                         drawable = R.drawable.draw;
 388                         break;
 389                     case FileUtilities.IMPRESS:
 390                         drawable = R.drawable.impress;
 391                         break;
 392                 }
 393
 394                 Intent intent = new Intent(Intent.ACTION_VIEW, docUri);
 395                 String packageName = this.getApplicationContext().getPackageName();
 396                 ComponentName componentName = new ComponentName(packageName, LibreOfficeMainActivity.class.getName());
 397                 intent.setComponent(componentName);
 398
 399                 ShortcutInfo shortcut = new ShortcutInfo.Builder(this, filename)
 400                         .setShortLabel(filename)
 401                         .setLongLabel(filename)
 402                         .setIcon(Icon.createWithResource(this, drawable))
 403                         .setIntent(intent)
 404                         .build();
 405
 406                 shortcuts.add(shortcut);
 407             }
 408             shortcutManager.setDynamicShortcuts(shortcuts);
 409         }
 410     }
 411
 412     @Override
 413     public void onClick(View v) {
 414         int id = v.getId();
 415         if (id == R.id.editFAB) {
 416             if (isFabMenuOpen) {
 417                 collapseFabMenu();
 418             } else {
 419                 expandFabMenu();
 420             }
 421         } else if (id == R.id.open_file_button) {
 422             showSystemFilePickerAndOpenFile();
 423         } else if (id == R.id.newWriterFAB) {
 424             loadNewDocument(DocumentType.WRITER);
 425         } else if (id == R.id.newImpressFAB) {
 426             loadNewDocument(DocumentType.IMPRESS);
 427         } else if (id == R.id.newCalcFAB) {
 428             loadNewDocument(DocumentType.CALC);
 429         } else if (id == R.id.newDrawFAB) {
 430             loadNewDocument(DocumentType.DRAW);
 431         }
 432     }
 433 }
 434
 435 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */