2 * Copyright 2015-2016 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
6 * Privacy Browser is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * Privacy Browser is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser;
22 import android.annotation.SuppressLint;
23 import android.app.Activity;
24 import android.app.DownloadManager;
25 import android.content.Intent;
26 import android.content.SharedPreferences;
27 import android.content.res.Configuration;
28 import android.graphics.Bitmap;
29 import android.net.Uri;
30 import android.os.Build;
31 import android.os.Bundle;
32 import android.preference.PreferenceManager;
33 import android.support.design.widget.NavigationView;
34 import android.support.design.widget.Snackbar;
35 import android.support.v4.app.DialogFragment;
36 import android.support.v4.view.GravityCompat;
37 import android.support.v4.widget.DrawerLayout;
38 import android.support.v4.widget.SwipeRefreshLayout;
39 import android.support.v7.app.ActionBar;
40 import android.support.v7.app.ActionBarDrawerToggle;
41 import android.support.v7.app.AppCompatActivity;
42 import android.support.v7.app.AppCompatDialogFragment;
43 import android.support.v7.widget.Toolbar;
44 import android.util.Patterns;
45 import android.view.KeyEvent;
46 import android.view.Menu;
47 import android.view.MenuItem;
48 import android.view.View;
49 import android.view.inputmethod.InputMethodManager;
50 import android.webkit.CookieManager;
51 import android.webkit.DownloadListener;
52 import android.webkit.WebChromeClient;
53 import android.webkit.WebStorage;
54 import android.webkit.WebView;
55 import android.webkit.WebViewClient;
56 import android.widget.EditText;
57 import android.widget.FrameLayout;
58 import android.widget.ImageView;
59 import android.widget.ProgressBar;
61 import java.io.UnsupportedEncodingException;
62 import java.net.MalformedURLException;
64 import java.net.URLEncoder;
66 // We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21.
67 public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener {
68 // favoriteIcon is public static so it can be accessed from CreateHomeScreenShortcut.
69 public static Bitmap favoriteIcon;
70 // mainWebView is public static so it can be accessed from AboutDialog and SettingsFragment. It is also used in onCreate(), onOptionsItemSelected(), onNavigationItemSelected(), and loadUrlFromTextBox().
71 public static WebView mainWebView;
73 // mainMenu is public static so it can be accessed from SettingsFragment. It is also used in onCreateOptionsMenu() and onOptionsItemSelected().
74 public static Menu mainMenu;
75 // cookieManager is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onOptionsItemSelected(), and onNavigationItemSelected().
76 public static CookieManager cookieManager;
77 // javaScriptEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), onOptionsItemSelected(), and loadUrlFromTextBox().
78 public static boolean javaScriptEnabled;
79 // firstPartyCookiesEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), onPrepareOptionsMenu(), and onOptionsItemSelected().
80 public static boolean firstPartyCookiesEnabled;
81 // thirdPartyCookiesEnabled is uesd in onCreate(), onCreateOptionsMenu(), onPrepareOptionsMenu(), and onOptionsItemSelected().
82 public static boolean thirdPartyCookiesEnabled;
83 // domStorageEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), and onOptionsItemSelected().
84 public static boolean domStorageEnabled;
85 // javaScriptDisabledSearchURL is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and loadURLFromTextBox().
86 public static String javaScriptDisabledSearchURL;
87 // javaScriptEnabledSearchURL is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and loadURLFromTextBox().
88 public static String javaScriptEnabledSearchURL;
89 // homepage is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and onOptionsItemSelected().
90 public static String homepage;
91 // swipeToRefresh is public static so it can be accessed from SettingsFragment. It is also used in onCreate().
92 public static SwipeRefreshLayout swipeToRefresh;
93 // swipeToRefreshEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate().
94 public static boolean swipeToRefreshEnabled;
96 // drawerToggle is used in onCreate(), onPostCreate(), onConfigurationChanged(), onNewIntent(), and onNavigationItemSelected().
97 private ActionBarDrawerToggle drawerToggle;
98 // drawerLayout is used in onCreate(), onNewIntent(), and onBackPressed().
99 private DrawerLayout drawerLayout;
100 // formattedUrlString is used in onCreate(), onOptionsItemSelected(), onCreateHomeScreenShortcutCreate(), and loadUrlFromTextBox().
101 private String formattedUrlString;
102 // privacyIcon is used in onCreateOptionsMenu() and updatePrivacyIcon().
103 private MenuItem privacyIcon;
105 // urlTextBox is used in onCreate(), onOptionsItemSelected(), and loadUrlFromTextBox().
106 private EditText urlTextBox;
109 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. The whole premise of Privacy Browser is built around an understanding of these dangers.
110 @SuppressLint("SetJavaScriptEnabled")
111 protected void onCreate(Bundle savedInstanceState) {
112 super.onCreate(savedInstanceState);
113 setContentView(R.layout.coordinator_layout);
115 // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21.
116 Toolbar supportAppBar = (Toolbar) findViewById(R.id.appBar);
117 setSupportActionBar(supportAppBar);
119 final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout);
121 // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21.
122 final ActionBar appBar = getSupportActionBar();
124 // Setup AdView for the free flavor.
125 final View adView = findViewById(R.id.adView);
127 // Implement swipe to refresh
128 swipeToRefresh = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
129 swipeToRefresh.setColorSchemeResources(R.color.blue);
130 swipeToRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
132 public void onRefresh() {
133 mainWebView.reload();
137 mainWebView = (WebView) findViewById(R.id.mainWebView);
139 if (appBar != null) {
140 // Add the custom url_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar.
141 appBar.setCustomView(R.layout.url_bar);
142 appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
144 // Set the "go" button on the keyboard to load the URL in urlTextBox.
145 urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox);
146 urlTextBox.setOnKeyListener(new View.OnKeyListener() {
147 public boolean onKey(View v, int keyCode, KeyEvent event) {
148 // If the event is a key-down event on the "enter" button, load the URL.
149 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
150 // Load the URL into the mainWebView and consume the event.
152 loadUrlFromTextBox();
153 } catch (UnsupportedEncodingException e) {
156 // If the enter key was pressed, consume the event.
159 // If any other key was pressed, do not consume the event.
166 // Create the navigation drawer.
167 drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
168 // The DrawerTitle identifies the drawer in accessibility mode.
169 drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer));
171 // Listen for touches on the navigation menu.
172 final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView);
173 navigationView.setNavigationItemSelectedListener(this);
175 // drawerToggle creates the hamburger icon at the start of the AppBar.
176 drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation);
178 mainWebView.setWebViewClient(new WebViewClient() {
179 // shouldOverrideUrlLoading makes this WebView the default handler for URLs inside the app, so that links are not kicked out to other apps.
181 public boolean shouldOverrideUrlLoading(WebView view, String url) {
182 mainWebView.loadUrl(url);
186 // Update the URL in urlTextBox when the page starts to load.
188 public void onPageStarted(WebView view, String url, Bitmap favicon) {
189 urlTextBox.setText(url);
192 // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load.
194 public void onPageFinished(WebView view, String url) {
195 formattedUrlString = url;
197 // Only update urlTextBox if the user is not typing in it.
198 if (!urlTextBox.hasFocus()) {
199 urlTextBox.setText(formattedUrlString);
204 mainWebView.setWebChromeClient(new WebChromeClient() {
205 // Update the progress bar when a page is loading.
207 public void onProgressChanged(WebView view, int progress) {
208 // Make sure that appBar is not null.
209 if (appBar != null) {
210 ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
211 progressBar.setProgress(progress);
212 if (progress < 100) {
213 progressBar.setVisibility(View.VISIBLE);
215 progressBar.setVisibility(View.GONE);
217 //Stop the SwipeToRefresh indicator if it is running
218 swipeToRefresh.setRefreshing(false);
223 // Set the favorite icon when it changes.
225 public void onReceivedIcon(WebView view, Bitmap icon) {
226 // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
229 // Place the favorite icon in the appBar if it is not null.
230 if (appBar != null) {
231 ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
232 imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
236 // Enter full screen video
238 public void onShowCustomView(View view, CustomViewCallback callback) {
239 if (appBar != null) {
243 // Show the fullScreenVideoFrameLayout.
244 fullScreenVideoFrameLayout.addView(view);
245 fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
247 // Hide the mainWebView.
248 mainWebView.setVisibility(View.GONE);
250 // Hide the ad if this is the free flavor.
251 BannerAd.hideAd(adView);
253 /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen.
254 ** SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen.
255 ** SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them.
258 // Set the one flag supported by API >= 14.
259 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
261 // Set the two flags that are supported by API >= 16.
262 if (Build.VERSION.SDK_INT >= 16) {
263 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN);
266 // Set all three flags that are supported by API >= 19.
267 if (Build.VERSION.SDK_INT >= 19) {
268 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
272 // Exit full screen video
273 public void onHideCustomView() {
274 if (appBar != null) {
278 // Show the mainWebView.
279 mainWebView.setVisibility(View.VISIBLE);
281 // Show the ad if this is the free flavor.
282 BannerAd.showAd(adView);
284 // Hide the fullScreenVideoFrameLayout.
285 fullScreenVideoFrameLayout.removeAllViews();
286 fullScreenVideoFrameLayout.setVisibility(View.GONE);
290 // Allow the downloading of files.
291 mainWebView.setDownloadListener(new DownloadListener() {
292 // Launch the Android download manager when a link leads to a download.
294 public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
295 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
296 DownloadManager.Request requestUri = new DownloadManager.Request(Uri.parse(url));
298 // Add the URL as the description for the download.
299 requestUri.setDescription(url);
301 // Show the download notification after the download is completed.
302 requestUri.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
304 // Initiate the download and display a Snackbar.
305 downloadManager.enqueue(requestUri);
306 Snackbar.make(findViewById(R.id.mainWebView), R.string.download_started, Snackbar.LENGTH_SHORT).show();
310 // Allow pinch to zoom.
311 mainWebView.getSettings().setBuiltInZoomControls(true);
313 // Hide zoom controls.
314 mainWebView.getSettings().setDisplayZoomControls(false);
317 // Initialize the default preference values the first time the program is run.
318 PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
320 // Get the shared preference values.
321 SharedPreferences savedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
323 // Set JavaScript initial status. The default value is false.
324 javaScriptEnabled = savedPreferences.getBoolean("javascript_enabled", false);
325 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
327 // Initialize cookieManager.
328 cookieManager = CookieManager.getInstance();
330 // Set cookies initial status. The default value is false.
331 firstPartyCookiesEnabled = savedPreferences.getBoolean("first_party_cookies_enabled", false);
332 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
334 // Set third-party cookies initial status if API >= 21. The default value is false.
335 if (Build.VERSION.SDK_INT >= 21) {
336 thirdPartyCookiesEnabled = savedPreferences.getBoolean("third_party_cookies_enabled", false);
337 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
340 // Set DOM storage initial status. The default value is false.
341 domStorageEnabled = savedPreferences.getBoolean("dom_storage_enabled", false);
342 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
344 // Set the user agent initial status.
345 String userAgentString = savedPreferences.getString("user_agent", "Default user agent");
346 switch (userAgentString) {
347 case "Default user agent":
351 case "Custom user agent":
352 // Set the custom user agent on mainWebView, The default is "PrivacyBrowser/1.0".
353 mainWebView.getSettings().setUserAgentString(savedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"));
357 // Set the selected user agent on mainWebView. The default is "PrivacyBrowser/1.0".
358 mainWebView.getSettings().setUserAgentString(savedPreferences.getString("user_agent", "PrivacyBrowser/1.0"));
362 // Set the initial string for JavaScript disabled search.
363 if (savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=").equals("Custom URL")) {
364 // Get the custom URL string. The default is "".
365 javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search_custom_url", "");
367 // Use the string from javascript_disabled_search.
368 javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
371 // Set the initial string for JavaScript enabled search.
372 if (savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=").equals("Custom URL")) {
373 // Get the custom URL string. The default is "".
374 javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search_custom_url", "");
376 // Use the string from javascript_enabled_search.
377 javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
381 // Set homepage initial status. The default value is "https://www.duckduckgo.com".
382 homepage = savedPreferences.getString("homepage", "https://www.duckduckgo.com");
384 // Set swipe to refresh initial status. The default is true.
385 swipeToRefreshEnabled = savedPreferences.getBoolean("swipe_to_refresh_enabled", true);
386 swipeToRefresh.setEnabled(swipeToRefreshEnabled);
389 // Get the intent information that started the app.
390 final Intent intent = getIntent();
392 if (intent.getData() != null) {
393 // Get the intent data and convert it to a string.
394 final Uri intentUriData = intent.getData();
395 formattedUrlString = intentUriData.toString();
398 // If formattedUrlString is null assign the homepage to it.
399 if (formattedUrlString == null) {
400 formattedUrlString = homepage;
403 // Load the initial website.
404 mainWebView.loadUrl(formattedUrlString);
406 // Load the ad if this is the free flavor.
407 BannerAd.requestAd(adView);
411 protected void onNewIntent(Intent intent) {
412 // Sets the new intent as the activity intent, so that any future getIntent()s pick up this one instead of creating a new activity.
415 if (intent.getData() != null) {
416 // Get the intent data and convert it to a string.
417 final Uri intentUriData = intent.getData();
418 formattedUrlString = intentUriData.toString();
421 // Close the navigation drawer if it is open.
422 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
423 drawerLayout.closeDrawer(GravityCompat.START);
427 mainWebView.loadUrl(formattedUrlString);
429 // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
430 mainWebView.requestFocus();
434 public boolean onCreateOptionsMenu(Menu menu) {
435 // Inflate the menu; this adds items to the action bar if it is present.
436 getMenuInflater().inflate(R.menu.menu_options, menu);
438 // Set mainMenu so it can be used by onOptionsItemSelected.
441 // Initialize privacyIcon
442 privacyIcon = menu.findItem(R.id.toggleJavaScript);
444 // Get MenuItems for checkable menu items.
445 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
446 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
447 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
448 /* toggleSaveFormData does nothing until database storage is implemented.
449 MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
452 // Set the initial status of the privacy icon.
455 // Set the initial status of the menu item checkboxes.
456 toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
457 toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
458 toggleDomStorage.setChecked(domStorageEnabled);
459 /* toggleSaveFormData does nothing until database storage is implemented.
460 toggleSaveFormData.setChecked(saveFormDataEnabled);
467 public boolean onPrepareOptionsMenu(Menu menu) {
468 // Only enable Third-Party Cookies if SDK >= 21 and First-Party Cookies are enabled.
469 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
470 if ((Build.VERSION.SDK_INT >= 21) && firstPartyCookiesEnabled) {
471 toggleThirdPartyCookies.setEnabled(true);
473 toggleThirdPartyCookies.setEnabled(false);
476 // Enable Clear Cookies if there are any.
477 MenuItem clearCookies = menu.findItem(R.id.clearCookies);
478 clearCookies.setEnabled(cookieManager.hasCookies());
480 // Run all the other default commands.
481 super.onPrepareOptionsMenu(menu);
483 // return true displays the menu.
488 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
489 @SuppressLint("SetJavaScriptEnabled")
490 // removeAllCookies is deprecated, but it is required for API < 21.
491 @SuppressWarnings("deprecation")
492 public boolean onOptionsItemSelected(MenuItem menuItem) {
493 int menuItemId = menuItem.getItemId();
495 // Some options need to update the drawable for toggleJavaScript.
496 MenuItem toggleJavaScript = mainMenu.findItem(R.id.toggleJavaScript);
498 // Set the commands that relate to the menu entries.
499 switch (menuItemId) {
500 case R.id.toggleJavaScript:
501 // Switch the status of javaScriptEnabled.
502 javaScriptEnabled = !javaScriptEnabled;
504 // Apply the new JavaScript status.
505 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
507 // Update the privacy icon.
510 // Display a Snackbar.
511 if (javaScriptEnabled) {
512 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
514 if (domStorageEnabled || firstPartyCookiesEnabled) {
515 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
517 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
521 // Reload the WebView.
522 mainWebView.reload();
525 case R.id.toggleFirstPartyCookies:
526 // Switch the status of firstPartyCookiesEnabled.
527 firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
529 // Update the menu checkbox.
530 menuItem.setChecked(firstPartyCookiesEnabled);
532 // Apply the new cookie status.
533 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
535 // Update the privacy icon.
538 // Reload the WebView.
539 mainWebView.reload();
542 case R.id.toggleThirdPartyCookies:
543 if (Build.VERSION.SDK_INT >= 21) {
544 // Switch the status of thirdPartyCookiesEnabled.
545 thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
547 // Update the menu checkbox.
548 menuItem.setChecked(thirdPartyCookiesEnabled);
550 // Apply the new cookie status.
551 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
553 // Reload the WebView.
554 mainWebView.reload();
555 } // Else do nothing because SDK < 21.
558 case R.id.toggleDomStorage:
559 // Switch the status of domStorageEnabled.
560 domStorageEnabled = !domStorageEnabled;
562 // Update the menu checkbox.
563 menuItem.setChecked(domStorageEnabled);
565 // Apply the new DOM Storage status.
566 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
568 // Update the privacy icon.
571 // Reload the WebView.
572 mainWebView.reload();
575 case R.id.clearCookies:
576 if (Build.VERSION.SDK_INT < 21) {
577 cookieManager.removeAllCookie();
579 cookieManager.removeAllCookies(null);
581 Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
584 case R.id.clearDomStorage:
585 WebStorage webStorage = WebStorage.getInstance();
586 webStorage.deleteAllData();
587 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
591 Intent shareIntent = new Intent();
592 shareIntent.setAction(Intent.ACTION_SEND);
593 shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
594 shareIntent.setType("text/plain");
595 startActivity(Intent.createChooser(shareIntent, "Share URL"));
598 case R.id.addToHomescreen:
599 // Show the CreateHomeScreenShortcut AlertDialog and name this instance createShortcut.
600 AppCompatDialogFragment shortcutDialog = new CreateHomeScreenShortcut();
601 shortcutDialog.show(getSupportFragmentManager(), "createShortcut");
603 //Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below.
607 mainWebView.reload();
611 // Don't consume the event.
612 return super.onOptionsItemSelected(menuItem);
617 // removeAllCookies is deprecated, but it is required for API < 21.
618 @SuppressWarnings("deprecation")
619 public boolean onNavigationItemSelected(MenuItem menuItem) {
620 int menuItemId = menuItem.getItemId();
622 switch (menuItemId) {
624 mainWebView.loadUrl(homepage);
628 if (mainWebView.canGoBack()) {
629 mainWebView.goBack();
634 if (mainWebView.canGoForward()) {
635 mainWebView.goForward();
640 // Launch the system Download Manager.
641 Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
643 // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
644 downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
646 startActivity(downloadManagerIntent);
650 // Launch PreferenceFragment.
651 Intent intent = new Intent(this, SettingsActivity.class);
652 startActivity(intent);
656 // Show the AboutDialog AlertDialog and name this instance aboutDialog.
657 AppCompatDialogFragment aboutDialog = new AboutDialog();
658 aboutDialog.show(getSupportFragmentManager(), "aboutDialog");
661 case R.id.clearAndExit:
662 // Clear DOM storage.
663 WebStorage domStorage = WebStorage.getInstance();
664 domStorage.deleteAllData();
666 // Clear cookies. The commands changed slightly in API 21.
667 if (Build.VERSION.SDK_INT >= 21) {
668 cookieManager.removeAllCookies(null);
670 cookieManager.removeAllCookie();
673 // Destroy the internal state of the webview.
674 mainWebView.destroy();
676 // Close Privacy Browser. finishAndRemoveTask also removes Privacy Browser from the recent app list.
677 if (Build.VERSION.SDK_INT >= 21) {
678 finishAndRemoveTask();
688 // Close the navigation drawer.
689 drawerLayout.closeDrawer(GravityCompat.START);
694 public void onPostCreate(Bundle savedInstanceState) {
695 super.onPostCreate(savedInstanceState);
697 // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
698 drawerToggle.syncState();
702 public void onConfigurationChanged(Configuration newConfig) {
703 super.onConfigurationChanged(newConfig);
705 // Update the status of the drawerToggle icon.
706 drawerToggle.onConfigurationChanged(newConfig);
710 public void onCreateHomeScreenShortcutCancel(DialogFragment dialog) {
711 // Do nothing because the user selected "Cancel".
715 public void onCreateHomeScreenShortcutCreate(DialogFragment dialog) {
716 // Get shortcutNameEditText from the alert dialog.
717 EditText shortcutNameEditText = (EditText) dialog.getDialog().findViewById(R.id.shortcutNameEditText);
719 // Create the bookmark shortcut based on formattedUrlString.
720 Intent bookmarkShortcut = new Intent();
721 bookmarkShortcut.setAction(Intent.ACTION_VIEW);
722 bookmarkShortcut.setData(Uri.parse(formattedUrlString));
724 // Place the bookmark shortcut on the home screen.
725 Intent placeBookmarkShortcut = new Intent();
726 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
727 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
728 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
729 placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
730 sendBroadcast(placeBookmarkShortcut);
733 // Override onBackPressed to handle the navigation drawer and mainWebView.
735 public void onBackPressed() {
736 final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
738 // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text.
739 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
740 drawerLayout.closeDrawer(GravityCompat.START);
742 // Load the previous URL if available.
743 if (mainWebView.canGoBack()) {
744 mainWebView.goBack();
746 // Pass onBackPressed to the system.
747 super.onBackPressed();
752 private void loadUrlFromTextBox() throws UnsupportedEncodingException {
753 // Get the text from urlTextBox and convert it to a string.
754 String unformattedUrlString = urlTextBox.getText().toString();
755 URL unformattedUrl = null;
756 Uri.Builder formattedUri = new Uri.Builder();
758 // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
759 if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
760 // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
761 if (!unformattedUrlString.startsWith("http")) {
762 unformattedUrlString = "http://" + unformattedUrlString;
765 // Convert unformattedUrlString to a URL, then to a URI, and then back to a string, which sanitizes the input and adds in any missing components.
767 unformattedUrl = new URL(unformattedUrlString);
768 } catch (MalformedURLException e) {
772 // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
773 final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
774 final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
775 final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
776 final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
777 final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
779 formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
780 formattedUrlString = formattedUri.build().toString();
782 // Sanitize the search input and convert it to a DuckDuckGo search.
783 final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
785 // Use the correct search URL based on javaScriptEnabled.
786 if (javaScriptEnabled) {
787 formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
788 } else { // JavaScript is disabled.
789 formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
793 mainWebView.loadUrl(formattedUrlString);
795 // Hides the keyboard so we can see the webpage.
796 InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
797 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
800 private void updatePrivacyIcon() {
801 if (javaScriptEnabled) {
802 privacyIcon.setIcon(R.drawable.javascript_enabled);
804 if (domStorageEnabled || firstPartyCookiesEnabled) {
805 privacyIcon.setIcon(R.drawable.warning);
807 privacyIcon.setIcon(R.drawable.privacy_mode);