X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2FMainWebViewActivity.java;h=ca0cc89c5409fe5d0b81997598c8f3ba48813560;hp=5d2307338092869f09aa82b47f3a7f3273772dfd;hb=b8cd7cadd09a5336f1d34eb4a7d5b0a8330a0971;hpb=81aeaac4229700db3255a6d6c02a8bda18b403e6 diff --git a/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java b/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java index 5d230733..ca0cc89c 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java +++ b/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java @@ -1,7 +1,7 @@ /** * Copyright 2015-2016 Soren Stoutner . * - * This file is part of Privacy Browser. + * This file is part of Privacy Browser . * * Privacy Browser is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -20,27 +20,34 @@ package com.stoutner.privacybrowser; import android.annotation.SuppressLint; -import android.annotation.TargetApi; import android.app.Activity; +import android.app.DialogFragment; import android.app.DownloadManager; import android.content.Intent; import android.content.SharedPreferences; +import android.content.res.Configuration; import android.graphics.Bitmap; +import android.graphics.drawable.BitmapDrawable; +import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.preference.PreferenceManager; -import android.support.v4.app.DialogFragment; +import android.support.design.widget.NavigationView; +import android.support.design.widget.Snackbar; +import android.support.v4.content.ContextCompat; +import android.support.v4.view.GravityCompat; +import android.support.v4.widget.DrawerLayout; +import android.support.v4.widget.SwipeRefreshLayout; import android.support.v7.app.ActionBar; +import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; -import android.support.v7.app.AppCompatDialogFragment; import android.support.v7.widget.Toolbar; import android.util.Patterns; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; import android.view.View; -import android.view.Window; import android.view.inputmethod.InputMethodManager; import android.webkit.CookieManager; import android.webkit.DownloadListener; @@ -48,120 +55,177 @@ import android.webkit.WebChromeClient; import android.webkit.WebStorage; import android.webkit.WebView; import android.webkit.WebViewClient; +import android.webkit.WebViewDatabase; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.ProgressBar; -import android.widget.Toast; + import java.io.UnsupportedEncodingException; import java.net.MalformedURLException; import java.net.URL; import java.net.URLEncoder; // We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21. -public class MainWebViewActivity extends AppCompatActivity implements CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener { - // favoriteIcon is public static so it can be accessed from CreateHomeScreenShortcut. +public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener { + // `favoriteIcon` is public static so it can be accessed from `CreateHomeScreenShortcut`, `BookmarksActivity`, `CreateBookmark`, `CreateBookmarkFolder`, and `EditBookmark`. + // It is also used in `onCreate()` and `onCreateHomeScreenShortcutCreate()`. public static Bitmap favoriteIcon; - // mainWebView is public static so it can be accessed from AboutDialog. It is also used in onCreate(), onOptionsItemSelected(), and loadUrlFromTextBox(). + + // mainWebView is public static so it can be accessed from SettingsFragment. + // It is also used in onCreate(), onOptionsItemSelected(), onNavigationItemSelected(), and loadUrlFromTextBox(). public static WebView mainWebView; - // mainMenu is used in onCreateOptionsMenu() and onOptionsItemSelected(). - private Menu mainMenu; - // formattedUrlString is used in onCreate(), onOptionsItemSelected(), onCreateHomeScreenShortcutCreate(), and loadUrlFromTextBox(). - private String formattedUrlString; - // homepage is used in onCreate() and onOptionsItemSelected(). - private String homepage; - // javaScriptEnabled is used in onCreate(), onCreateOptionsMenu(), onOptionsItemSelected(), and loadUrlFromTextBox(). - private boolean javaScriptEnabled; - // domStorageEnabled is used in onCreate(), onCreateOptionsMenu(), and onOptionsItemSelected(). - private boolean domStorageEnabled; - - /* saveFormDataEnabled does nothing until database storage is implemented. - // saveFormDataEnabled is used in onCreate(), onCreateOptionsMenu(), and onOptionsItemSelected(). - private boolean saveFormDataEnabled; - */ - - // cookieManager is used in onCreate() and onOptionsItemSelected(). - private CookieManager cookieManager; - // cookiesEnabled is used in onCreate(), onCreateOptionsMenu(), and onOptionsItemSelected(). - private boolean cookiesEnabled; + // formattedUrlString is public static so it can be accessed from BookmarksActivity. + // It is also used in onCreate(), onOptionsItemSelected(), onCreateHomeScreenShortcutCreate(), and loadUrlFromTextBox(). + public static String formattedUrlString; + + // mainMenu is public static so it can be accessed from SettingsFragment. It is also used in onCreateOptionsMenu() and onOptionsItemSelected(). + public static Menu mainMenu; + + // cookieManager is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onOptionsItemSelected(), and onNavigationItemSelected(). + public static CookieManager cookieManager; + + // javaScriptEnabled is public static so it can be accessed from SettingsFragment. + // It is also used in onCreate(), onCreateOptionsMenu(), onOptionsItemSelected(), and loadUrlFromTextBox(). + public static boolean javaScriptEnabled; + + // firstPartyCookiesEnabled is public static so it can be accessed from SettingsFragment. + // It is also used in onCreate(), onCreateOptionsMenu(), onPrepareOptionsMenu(), and onOptionsItemSelected(). + public static boolean firstPartyCookiesEnabled; + + // thirdPartyCookiesEnabled is used in onCreate(), onCreateOptionsMenu(), onPrepareOptionsMenu(), and onOptionsItemSelected(). + public static boolean thirdPartyCookiesEnabled; + + // domStorageEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), and onOptionsItemSelected(). + public static boolean domStorageEnabled; + + // saveFormDataEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), and onOptionsItemSelected(). + public static boolean saveFormDataEnabled; + + // javaScriptDisabledSearchURL is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and loadURLFromTextBox(). + public static String javaScriptDisabledSearchURL; + + // javaScriptEnabledSearchURL is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and loadURLFromTextBox(). + public static String javaScriptEnabledSearchURL; + + // homepage is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and onOptionsItemSelected(). + public static String homepage; + + // swipeToRefresh is public static so it can be accessed from SettingsFragment. It is also used in onCreate(). + public static SwipeRefreshLayout swipeToRefresh; + + // swipeToRefreshEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(). + public static boolean swipeToRefreshEnabled; + + + + // drawerToggle is used in onCreate(), onPostCreate(), onConfigurationChanged(), onNewIntent(), and onNavigationItemSelected(). + private ActionBarDrawerToggle drawerToggle; + + // drawerLayout is used in onCreate(), onNewIntent(), and onBackPressed(). + private DrawerLayout drawerLayout; + + // privacyIcon is used in onCreateOptionsMenu() and updatePrivacyIcon(). + private MenuItem privacyIcon; // urlTextBox is used in onCreate(), onOptionsItemSelected(), and loadUrlFromTextBox(). private EditText urlTextBox; + // adView is used in onCreate() and onConfigurationChanged(). + private View adView; + @Override - // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. + // 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. @SuppressLint("SetJavaScriptEnabled") protected void onCreate(Bundle savedInstanceState) { - // Window.FEATURE_ACTION_BAR_OVERLAY must be enabled to set the app bar to HideOnContentScroll. It must be set before any content is added to the activity. - if (Build.VERSION.SDK_INT >= 11) { - requestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY); - } - super.onCreate(savedInstanceState); - setContentView(R.layout.activity_webview); + setContentView(R.layout.main_coordinatorlayout); // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21. Toolbar supportAppBar = (Toolbar) findViewById(R.id.appBar); setSupportActionBar(supportAppBar); + final ActionBar appBar = getSupportActionBar(); + + // This is needed to get rid of the Android Studio warning that appBar might be null. + assert appBar != null; + + // Add the custom url_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar. + appBar.setCustomView(R.layout.url_bar); + appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM); + + // Set the "go" button on the keyboard to load the URL in urlTextBox. + urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox); + urlTextBox.setOnKeyListener(new View.OnKeyListener() { + public boolean onKey(View v, int keyCode, KeyEvent event) { + // If the event is a key-down event on the "enter" button, load the URL. + if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { + // Load the URL into the mainWebView and consume the event. + try { + loadUrlFromTextBox(); + } catch (UnsupportedEncodingException e) { + e.printStackTrace(); + } + // If the enter key was pressed, consume the event. + return true; + } else { + // If any other key was pressed, do not consume the event. + return false; + } + } + }); final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout); - final Activity mainWebViewActivity = this; - // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21. - final ActionBar appBar = getSupportActionBar(); + + // Implement swipe to refresh + swipeToRefresh = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout); + assert swipeToRefresh != null; //This assert removes the incorrect warning on the following line that swipeToRefresh might be null. + swipeToRefresh.setColorSchemeResources(R.color.blue); + swipeToRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { + @Override + public void onRefresh() { + mainWebView.reload(); + } + }); mainWebView = (WebView) findViewById(R.id.mainWebView); - if (appBar != null) { - /* TODO Enable app bar scrolling. - // Scroll the app bar, but only if the API supports overlay mode (>= 11). - if (Build.VERSION.SDK_INT >= 11) { - appBar.setHideOnContentScrollEnabled(true); - } - */ - - // Remove the title from the app bar. - appBar.setDisplayShowTitleEnabled(false); - - // Add the custom url_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar. - appBar.setCustomView(R.layout.url_bar); - appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM); - - // Set the "go" button on the keyboard to load the URL in urlTextBox. - urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox); - urlTextBox.setOnKeyListener(new View.OnKeyListener() { - public boolean onKey(View v, int keyCode, KeyEvent event) { - // If the event is a key-down event on the "enter" button, load the URL. - if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { - // Load the URL into the mainWebView and consume the event. - try { - loadUrlFromTextBox(); - } catch (UnsupportedEncodingException e) { - e.printStackTrace(); - } - // If the enter key was pressed, consume the event. - return true; - } else { - // If any other key was pressed, do not consume the event. - return false; - } - } - }); - } + // Create the navigation drawer. + drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout); + // The DrawerTitle identifies the drawer in accessibility mode. + drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer)); + + // Listen for touches on the navigation menu. + final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView); + assert navigationView != null; // This assert removes the incorrect warning on the following line that navigationView might be null. + navigationView.setNavigationItemSelectedListener(this); + + // drawerToggle creates the hamburger icon at the start of the AppBar. + drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation); mainWebView.setWebViewClient(new WebViewClient() { - // shouldOverrideUrlLoading makes this WebView the default handler for URLs inside the app, so that links are not kicked out to other apps. + // shouldOverrideUrlLoading makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps. @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { - mainWebView.loadUrl(url); - return true; - } - - /* These errors do not provide any useful information and clutter the screen. - public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) { - Toast.makeText(mainWebViewActivity, "Error loading " + request + " Error: " + error, Toast.LENGTH_SHORT).show(); + // Use an external email program if the link begins with "mailto:". + if (url.startsWith("mailto:")) { + // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched. + Intent emailIntent = new Intent(Intent.ACTION_SENDTO); + + // Parse the url and set it as the data for the `Intent`. + emailIntent.setData(Uri.parse(url)); + + // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser. + emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + + // Make it so. + startActivity(emailIntent); + return true; + } else { // Load the URL in Privacy Browser. + mainWebView.loadUrl(url); + return true; + } } - */ // Update the URL in urlTextBox when the page starts to load. @Override @@ -173,7 +237,11 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome @Override public void onPageFinished(WebView view, String url) { formattedUrlString = url; - urlTextBox.setText(formattedUrlString); + + // Only update urlTextBox if the user is not typing in it. + if (!urlTextBox.hasFocus()) { + urlTextBox.setText(formattedUrlString); + } } }); @@ -181,15 +249,15 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome // Update the progress bar when a page is loading. @Override public void onProgressChanged(WebView view, int progress) { - // Make sure that appBar is not null. - if (appBar != null) { - ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar); - progressBar.setProgress(progress); - if (progress < 100) { - progressBar.setVisibility(View.VISIBLE); - } else { - progressBar.setVisibility(View.GONE); - } + ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar); + progressBar.setProgress(progress); + if (progress < 100) { + progressBar.setVisibility(View.VISIBLE); + } else { + progressBar.setVisibility(View.GONE); + + //Stop the SwipeToRefresh indicator if it is running + swipeToRefresh.setRefreshing(false); } } @@ -199,54 +267,46 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome // Save a copy of the favorite icon for use if a shortcut is added to the home screen. favoriteIcon = icon; - // Place the favorite icon in the appBar if it is not null. - if (appBar != null) { - ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon); - imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true)); - } + // Place the favorite icon in the appBar. + ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon); + imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true)); } // Enter full screen video @Override public void onShowCustomView(View view, CustomViewCallback callback) { - if (appBar != null) { - appBar.hide(); - } + appBar.hide(); + // Show the fullScreenVideoFrameLayout. + assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null. fullScreenVideoFrameLayout.addView(view); fullScreenVideoFrameLayout.setVisibility(View.VISIBLE); + // Hide the mainWebView. mainWebView.setVisibility(View.GONE); - /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen. - ** SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen. - ** SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them. - */ - - // Set the one flag supported by API >= 14. - if (Build.VERSION.SDK_INT >= 14) { - view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION); - } - - // Set the two flags that are supported by API >= 16. - if (Build.VERSION.SDK_INT >= 16) { - view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN); - } + // Hide the ad if this is the free flavor. + BannerAd.hideAd(adView); - // Set all three flags that are supported by API >= 19. - if (Build.VERSION.SDK_INT >= 19) { - view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY); - } + /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen. + * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen. + * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them. + */ + view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY); } // Exit full screen video public void onHideCustomView() { - if (appBar != null) { - appBar.show(); - } + appBar.show(); + // Show the mainWebView. mainWebView.setVisibility(View.VISIBLE); + // Show the ad if this is the free flavor. + BannerAd.showAd(adView); + + // Hide the fullScreenVideoFrameLayout. + assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null. fullScreenVideoFrameLayout.removeAllViews(); fullScreenVideoFrameLayout.setVisibility(View.GONE); } @@ -263,23 +323,21 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome // Add the URL as the description for the download. requestUri.setDescription(url); - // Show the download notification after the download is completed if the API is 11 or greater. - if (Build.VERSION.SDK_INT >= 11) { - requestUri.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); - } + // Show the download notification after the download is completed. + requestUri.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); + // Initiate the download and display a Snackbar. downloadManager.enqueue(requestUri); - Toast.makeText(mainWebViewActivity, "Download started", Toast.LENGTH_SHORT).show(); + Snackbar.make(findViewById(R.id.mainWebView), R.string.download_started, Snackbar.LENGTH_SHORT).show(); } }); // Allow pinch to zoom. mainWebView.getSettings().setBuiltInZoomControls(true); - // Hide zoom controls if the API is 11 or greater. - if (Build.VERSION.SDK_INT >= 11) { - mainWebView.getSettings().setDisplayZoomControls(false); - } + // Hide zoom controls. + mainWebView.getSettings().setDisplayZoomControls(false); + // Initialize the default preference values the first time the program is run. PreferenceManager.setDefaultValues(this, R.xml.preferences, false); @@ -287,28 +345,76 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome // Get the shared preference values. SharedPreferences savedPreferences = PreferenceManager.getDefaultSharedPreferences(this); - // Set JavaScript initial status. + // Set JavaScript initial status. The default value is false. javaScriptEnabled = savedPreferences.getBoolean("javascript_enabled", false); mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled); - // Set DOM storage initial status. + // Initialize cookieManager. + cookieManager = CookieManager.getInstance(); + + // Set cookies initial status. The default value is false. + firstPartyCookiesEnabled = savedPreferences.getBoolean("first_party_cookies_enabled", false); + cookieManager.setAcceptCookie(firstPartyCookiesEnabled); + + // Set third-party cookies initial status if API >= 21. The default value is false. + if (Build.VERSION.SDK_INT >= 21) { + thirdPartyCookiesEnabled = savedPreferences.getBoolean("third_party_cookies_enabled", false); + cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled); + } + + // Set DOM storage initial status. The default value is false. domStorageEnabled = savedPreferences.getBoolean("dom_storage_enabled", false); mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled); - /* Save Form Data does nothing until database storage is implemented. - // Set Save Form Data initial status. - saveFormDataEnabled = true; + // Set the saved form data initial status. The default is false. + saveFormDataEnabled = savedPreferences.getBoolean("save_form_data_enabled", false); mainWebView.getSettings().setSaveFormData(saveFormDataEnabled); - */ - // Set cookies initial status. - cookiesEnabled = savedPreferences.getBoolean("cookies_enabled", false); - cookieManager = CookieManager.getInstance(); - cookieManager.setAcceptCookie(cookiesEnabled); + // Set the user agent initial status. + String userAgentString = savedPreferences.getString("user_agent", "Default user agent"); + switch (userAgentString) { + case "Default user agent": + // Do nothing. + break; + + case "Custom user agent": + // Set the custom user agent on mainWebView, The default is "PrivacyBrowser/1.0". + mainWebView.getSettings().setUserAgentString(savedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0")); + break; + + default: + // Set the selected user agent on mainWebView. The default is "PrivacyBrowser/1.0". + mainWebView.getSettings().setUserAgentString(savedPreferences.getString("user_agent", "PrivacyBrowser/1.0")); + break; + } + + // Set the initial string for JavaScript disabled search. + if (savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=").equals("Custom URL")) { + // Get the custom URL string. The default is "". + javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search_custom_url", ""); + } else { + // Use the string from javascript_disabled_search. + javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q="); + } + + // Set the initial string for JavaScript enabled search. + if (savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=").equals("Custom URL")) { + // Get the custom URL string. The default is "". + javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search_custom_url", ""); + } else { + // Use the string from javascript_enabled_search. + javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q="); + } - // Set hompage initial status. + + // Set homepage initial status. The default value is "https://www.duckduckgo.com". homepage = savedPreferences.getString("homepage", "https://www.duckduckgo.com"); + // Set swipe to refresh initial status. The default is true. + swipeToRefreshEnabled = savedPreferences.getBoolean("swipe_to_refresh_enabled", true); + swipeToRefresh.setEnabled(swipeToRefreshEnabled); + + // Get the intent information that started the app. final Intent intent = getIntent(); @@ -325,8 +431,21 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome // Load the initial website. mainWebView.loadUrl(formattedUrlString); + + // Load the default favorite icon if it is null. + if (favoriteIcon == null) { + // We have to use `ContextCompat` until API >= 21. + Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world); + BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable; + favoriteIcon = favoriteIconBitmapDrawable.getBitmap(); + } + + // Initialize AdView for the free flavor and request an ad. If this is not the free flavor BannerAd.requestAd() does nothing. + adView = findViewById(R.id.adView); + BannerAd.requestAd(adView); } + @Override protected void onNewIntent(Intent intent) { // Sets the new intent as the activity intent, so that any future getIntent()s pick up this one instead of creating a new activity. @@ -338,71 +457,78 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome formattedUrlString = intentUriData.toString(); } + // Close the navigation drawer if it is open. + if (drawerLayout.isDrawerVisible(GravityCompat.START)) { + drawerLayout.closeDrawer(GravityCompat.START); + } + // Load the website. mainWebView.loadUrl(formattedUrlString); + + // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it. + mainWebView.requestFocus(); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. - getMenuInflater().inflate(R.menu.menu_webview, menu); + getMenuInflater().inflate(R.menu.webview_options_menu, menu); // Set mainMenu so it can be used by onOptionsItemSelected. mainMenu = menu; + // Initialize privacyIcon + privacyIcon = menu.findItem(R.id.toggleJavaScript); + // Get MenuItems for checkable menu items. - MenuItem toggleJavaScript = menu.findItem(R.id.toggleJavaScript); + MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies); + MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies); MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage); - /* toggleSaveFormData does nothing until database storage is implemented. MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData); - */ - MenuItem toggleCookies = menu.findItem(R.id.toggleCookies); - // Set the initial icon for toggleJavaScript - if (javaScriptEnabled) { - toggleJavaScript.setIcon(R.drawable.javascript_enabled); - } else { - if (domStorageEnabled || cookiesEnabled) { - toggleJavaScript.setIcon(R.drawable.warning); - } else { - toggleJavaScript.setIcon(R.drawable.privacy_mode); - } - } + // Set the initial status of the privacy icon. + updatePrivacyIcon(); // Set the initial status of the menu item checkboxes. + toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled); + toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled); toggleDomStorage.setChecked(domStorageEnabled); - /* toggleSaveFormData does nothing until database storage is implemented. toggleSaveFormData.setChecked(saveFormDataEnabled); - */ - toggleCookies.setChecked(cookiesEnabled); return true; } @Override public boolean onPrepareOptionsMenu(Menu menu) { + // Only enable Third-Party Cookies if SDK >= 21 and First-Party Cookies are enabled. + MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies); + if ((Build.VERSION.SDK_INT >= 21) && firstPartyCookiesEnabled) { + toggleThirdPartyCookies.setEnabled(true); + } else { + toggleThirdPartyCookies.setEnabled(false); + } + + // Enable DOM Storage if JavaScript is enabled. + MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage); + toggleDomStorage.setEnabled(javaScriptEnabled); + // Enable Clear Cookies if there are any. MenuItem clearCookies = menu.findItem(R.id.clearCookies); clearCookies.setEnabled(cookieManager.hasCookies()); - // Enable Back if canGoBack(). - MenuItem back = menu.findItem(R.id.back); - back.setEnabled(mainWebView.canGoBack()); - - // Enable forward if canGoForward(). - MenuItem forward = menu.findItem(R.id.forward); - forward.setEnabled(mainWebView.canGoForward()); + // Enable Clear Form Data is there is any. + MenuItem clearFormData = menu.findItem(R.id.clearFormData); + WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this); + clearFormData.setEnabled(mainWebViewDatabase.hasFormData()); // Run all the other default commands. super.onPrepareOptionsMenu(menu); - // return true displays the menu. + // `return true` displays the menu. return true; } @Override - // @TargetApi(11) turns off the errors regarding copy and paste, which are removed from view in menu_webview.xml for lower version of Android. - @TargetApi(11) // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. @SuppressLint("SetJavaScriptEnabled") // removeAllCookies is deprecated, but it is required for API < 21. @@ -410,126 +536,92 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome public boolean onOptionsItemSelected(MenuItem menuItem) { int menuItemId = menuItem.getItemId(); - // Some options need to update the drawable for toggleJavaScript. - MenuItem toggleJavaScript = mainMenu.findItem(R.id.toggleJavaScript); - // Set the commands that relate to the menu entries. switch (menuItemId) { case R.id.toggleJavaScript: - if (javaScriptEnabled) { - javaScriptEnabled = false; - mainWebView.getSettings().setJavaScriptEnabled(false); - mainWebView.reload(); + // Switch the status of javaScriptEnabled. + javaScriptEnabled = !javaScriptEnabled; + + // Apply the new JavaScript status. + mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled); - // Update the toggleJavaScript icon and display a toast message. - if (domStorageEnabled || cookiesEnabled) { - menuItem.setIcon(R.drawable.warning); - if (domStorageEnabled && cookiesEnabled) { - Toast.makeText(getApplicationContext(), "JavaScript disabled, DOM Storage and Cookies still enabled", Toast.LENGTH_SHORT).show(); - } else { - if (domStorageEnabled) { - Toast.makeText(getApplicationContext(), "JavaScript disabled, DOM Storage still enabled", Toast.LENGTH_SHORT).show(); - } else { - Toast.makeText(getApplicationContext(), "JavaScript disabled, Cookies still enabled", Toast.LENGTH_SHORT).show(); - } - } + // Update the privacy icon. + updatePrivacyIcon(); + + // Display a Snackbar. + if (javaScriptEnabled) { + Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show(); + } else { + if (firstPartyCookiesEnabled) { + Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show(); } else { - menuItem.setIcon(R.drawable.privacy_mode); - Toast.makeText(getApplicationContext(), "Privacy Mode", Toast.LENGTH_SHORT).show(); + Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show(); } - } else { - javaScriptEnabled = true; - menuItem.setIcon(R.drawable.javascript_enabled); - mainWebView.getSettings().setJavaScriptEnabled(true); - mainWebView.reload(); - Toast.makeText(getApplicationContext(), "JavaScript enabled", Toast.LENGTH_SHORT).show(); } + + // Reload the WebView. + mainWebView.reload(); return true; - case R.id.toggleDomStorage: - if (domStorageEnabled) { - domStorageEnabled = false; - menuItem.setChecked(false); - mainWebView.getSettings().setDomStorageEnabled(false); - mainWebView.reload(); + case R.id.toggleFirstPartyCookies: + // Switch the status of firstPartyCookiesEnabled. + firstPartyCookiesEnabled = !firstPartyCookiesEnabled; - // Update the toggleJavaScript icon and display a toast message if appropriate. - if (!javaScriptEnabled && !cookiesEnabled) { - toggleJavaScript.setIcon(R.drawable.privacy_mode); - Toast.makeText(getApplicationContext(), "Privacy Mode", Toast.LENGTH_SHORT).show(); - } else { - if (cookiesEnabled) { - toggleJavaScript.setIcon(R.drawable.warning); - Toast.makeText(getApplicationContext(), "Cookies still enabled", Toast.LENGTH_SHORT).show(); - } // Else Do nothing because JavaScript is enabled. - } - } else { - domStorageEnabled = true; - menuItem.setChecked(true); - mainWebView.getSettings().setDomStorageEnabled(true); - mainWebView.reload(); + // Update the menu checkbox. + menuItem.setChecked(firstPartyCookiesEnabled); - // Update the toggleJavaScript icon if appropriate. - if (!javaScriptEnabled) { - toggleJavaScript.setIcon(R.drawable.warning); - } // Else Do nothing because JavaScript is enabled. + // Apply the new cookie status. + cookieManager.setAcceptCookie(firstPartyCookiesEnabled); - Toast.makeText(getApplicationContext(), "DOM Storage enabled", Toast.LENGTH_SHORT).show(); - } + // Update the privacy icon. + updatePrivacyIcon(); + + // Reload the WebView. + mainWebView.reload(); return true; - /* toggleSaveFormData does nothing until database storage is implemented. - case R.id.toggleSaveFormData: - if (saveFormDataEnabled) { - saveFormDataEnabled = false; - menuItem.setChecked(false); - mainWebView.getSettings().setSaveFormData(false); - mainWebView.reload(); - } else { - saveFormDataEnabled = true; - menuItem.setChecked(true); - mainWebView.getSettings().setSaveFormData(true); + case R.id.toggleThirdPartyCookies: + if (Build.VERSION.SDK_INT >= 21) { + // Switch the status of thirdPartyCookiesEnabled. + thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled; + + // Update the menu checkbox. + menuItem.setChecked(thirdPartyCookiesEnabled); + + // Apply the new cookie status. + cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled); + + // Reload the WebView. mainWebView.reload(); - } + } // Else do nothing because SDK < 21. return true; - */ - case R.id.toggleCookies: - if (cookiesEnabled) { - cookiesEnabled = false; - menuItem.setChecked(false); - cookieManager.setAcceptCookie(false); - mainWebView.reload(); + case R.id.toggleDomStorage: + // Switch the status of domStorageEnabled. + domStorageEnabled = !domStorageEnabled; - // Update the toggleJavaScript icon and display a toast message if appropriate. - if (!javaScriptEnabled && !domStorageEnabled) { - toggleJavaScript.setIcon(R.drawable.privacy_mode); - Toast.makeText(getApplicationContext(), "Privacy Mode", Toast.LENGTH_SHORT).show(); - } else { - if (domStorageEnabled) { - toggleJavaScript.setIcon(R.drawable.warning); - Toast.makeText(getApplicationContext(), "DOM Storage still enabled", Toast.LENGTH_SHORT).show(); - } // Else Do nothing because JavaScript is enabled. - } - } else { - cookiesEnabled = true; - menuItem.setChecked(true); - cookieManager.setAcceptCookie(true); - mainWebView.reload(); + // Update the menu checkbox. + menuItem.setChecked(domStorageEnabled); - // Update the toggleJavaScript icon if appropriate. - if (!javaScriptEnabled) { - toggleJavaScript.setIcon(R.drawable.warning); - } // Else Do nothing because JavaScript is enabled. + // Apply the new DOM Storage status. + mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled); - Toast.makeText(getApplicationContext(), "Cookies enabled", Toast.LENGTH_SHORT).show(); - } + // Reload the WebView. + mainWebView.reload(); return true; - case R.id.clearDomStorage: - WebStorage webStorage = WebStorage.getInstance(); - webStorage.deleteAllData(); - Toast.makeText(getApplicationContext(), "DOM storage deleted", Toast.LENGTH_SHORT).show(); + case R.id.toggleSaveFormData: + // Switch the status of saveFormDataEnabled. + saveFormDataEnabled = !saveFormDataEnabled; + + // Update the menu checkbox. + menuItem.setChecked(saveFormDataEnabled); + + // Apply the new form data status. + mainWebView.getSettings().setSaveFormData(saveFormDataEnabled); + + // Reload the WebView. + mainWebView.reload(); return true; case R.id.clearCookies: @@ -538,68 +630,105 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome } else { cookieManager.removeAllCookies(null); } - Toast.makeText(getApplicationContext(), "Cookies deleted", Toast.LENGTH_SHORT).show(); + Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show(); return true; - case R.id.addToHomescreen: - // Show the CreateHomeScreenShortcut AlertDialog and name this instance createShortcut. - AppCompatDialogFragment shortcutDialog = new CreateHomeScreenShortcut(); - shortcutDialog.show(getSupportFragmentManager(), "createShortcut"); - - //Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below. + case R.id.clearDomStorage: + WebStorage webStorage = WebStorage.getInstance(); + webStorage.deleteAllData(); + Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show(); return true; - case R.id.downloads: - // Launch the system Download Manager. - Intent downloadManangerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS); - - // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list. - downloadManangerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + case R.id.clearFormData: + WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this); + mainWebViewDatabase.clearFormData(); + mainWebView.reload(); + return true; - startActivity(downloadManangerIntent); + case R.id.share: + Intent shareIntent = new Intent(); + shareIntent.setAction(Intent.ACTION_SEND); + shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString()); + shareIntent.setType("text/plain"); + startActivity(Intent.createChooser(shareIntent, "Share URL")); return true; - case R.id.home: - mainWebView.loadUrl(homepage); + case R.id.addToHomescreen: + // Show the CreateHomeScreenShortcut AlertDialog and name this instance "@string/create_shortcut". + DialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut(); + createHomeScreenShortcutDialogFragment.show(getFragmentManager(), getResources().getString(R.string.create_shortcut)); + + //Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below. return true; case R.id.refresh: mainWebView.reload(); return true; + default: + // Don't consume the event. + return super.onOptionsItemSelected(menuItem); + } + } + + @Override + // removeAllCookies is deprecated, but it is required for API < 21. + @SuppressWarnings("deprecation") + public boolean onNavigationItemSelected(MenuItem menuItem) { + int menuItemId = menuItem.getItemId(); + + switch (menuItemId) { + case R.id.home: + mainWebView.loadUrl(homepage); + break; + case R.id.back: - mainWebView.goBack(); - return true; + if (mainWebView.canGoBack()) { + mainWebView.goBack(); + } + break; case R.id.forward: - mainWebView.goForward(); - return true; + if (mainWebView.canGoForward()) { + mainWebView.goForward(); + } + break; - case R.id.share: - Intent shareIntent = new Intent(); - shareIntent.setAction(Intent.ACTION_SEND); - shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString()); - shareIntent.setType("text/plain"); - startActivity(Intent.createChooser(shareIntent, "Share URL")); - return true; + case R.id.bookmarks: + // Launch BookmarksActivity. + Intent bookmarksIntent = new Intent(this, BookmarksActivity.class); + startActivity(bookmarksIntent); + break; + + case R.id.downloads: + // Launch the system Download Manager. + Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS); + + // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list. + downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + + startActivity(downloadManagerIntent); + break; case R.id.settings: - // Launch SettingsActivity. - Intent intent = new Intent(this, SettingsActivity.class); - startActivity(intent); - return true; + // Launch `SettingsActivity`. + Intent settingsIntent = new Intent(this, SettingsActivity.class); + startActivity(settingsIntent); + break; + + case R.id.guide: + // Launch `GuideActivity`. + Intent guideIntent = new Intent(this, GuideActivity.class); + startActivity(guideIntent); + break; case R.id.about: - // Show the AboutDialog AlertDialog and name this instance aboutDialog. - AppCompatDialogFragment aboutDialog = new AboutDialog(); - aboutDialog.show(getSupportFragmentManager(), "aboutDialog"); - return true; + // Launch `AboutActivity`. + Intent aboutIntent = new Intent(this, AboutActivity.class); + startActivity(aboutIntent); + break; case R.id.clearAndExit: - // Clear DOM storage. - WebStorage domStorage = WebStorage.getInstance(); - domStorage.deleteAllData(); - // Clear cookies. The commands changed slightly in API 21. if (Build.VERSION.SDK_INT >= 21) { cookieManager.removeAllCookies(null); @@ -607,6 +736,22 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome cookieManager.removeAllCookie(); } + // Clear DOM storage. + WebStorage domStorage = WebStorage.getInstance(); + domStorage.deleteAllData(); + + // Clear form data. + WebViewDatabase formData = WebViewDatabase.getInstance(this); + formData.clearFormData(); + + // Clear cache. The argument of "true" includes disk files. + mainWebView.clearCache(true); + + // Clear the back/forward history. + mainWebView.clearHistory(); + + formattedUrlString = null; + // Destroy the internal state of the webview. mainWebView.destroy(); @@ -616,22 +761,45 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome } else { finish(); } - return true; + break; default: - return super.onOptionsItemSelected(menuItem); + break; } + + // Close the navigation drawer. + drawerLayout.closeDrawer(GravityCompat.START); + return true; + } + + @Override + public void onPostCreate(Bundle savedInstanceState) { + super.onPostCreate(savedInstanceState); + + // Sync the state of the DrawerToggle after onRestoreInstanceState has finished. + drawerToggle.syncState(); + } + + @Override + public void onConfigurationChanged(Configuration newConfig) { + super.onConfigurationChanged(newConfig); + + // Reload the ad if this is the free flavor. + BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id)); + + // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate(). + adView = findViewById(R.id.adView); } @Override - public void onCreateHomeScreenShortcutCancel(DialogFragment dialog) { + public void onCancelCreateHomeScreenShortcut(DialogFragment dialogFragment) { // Do nothing because the user selected "Cancel". } @Override - public void onCreateHomeScreenShortcutCreate(DialogFragment dialog) { + public void onCreateHomeScreenShortcut(DialogFragment dialogFragment) { // Get shortcutNameEditText from the alert dialog. - EditText shortcutNameEditText = (EditText) dialog.getDialog().findViewById(R.id.shortcutNameEditText); + EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext); // Create the bookmark shortcut based on formattedUrlString. Intent bookmarkShortcut = new Intent(); @@ -647,21 +815,46 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome sendBroadcast(placeBookmarkShortcut); } - // Override onBackPressed so that if mainWebView can go back it does when the system back button is pressed. + // Override onBackPressed to handle the navigation drawer and mainWebView. @Override public void onBackPressed() { final WebView mainWebView = (WebView) findViewById(R.id.mainWebView); - if (mainWebView.canGoBack()) { - mainWebView.goBack(); + // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text. + if (drawerLayout.isDrawerVisible(GravityCompat.START)) { + drawerLayout.closeDrawer(GravityCompat.START); } else { - super.onBackPressed(); + // Load the previous URL if available. + assert mainWebView != null; //This assert removes the incorrect warning in Android Studio on the following line that mainWebView might be null. + if (mainWebView.canGoBack()) { + mainWebView.goBack(); + } else { + // Pass onBackPressed to the system. + super.onBackPressed(); + } } } - public void loadUrlFromTextBox() throws UnsupportedEncodingException { - // Get the text from urlTextBox and convert it to a string. - String unformattedUrlString = urlTextBox.getText().toString(); + @Override + public void onPause() { + // We need to pause the adView or it will continue to consume resources in the background on the free flavor. + BannerAd.pauseAd(adView); + + super.onPause(); + } + + @Override + public void onResume() { + super.onResume(); + + // We need to resume the adView for the free flavor. + BannerAd.resumeAd(adView); + } + + private void loadUrlFromTextBox() throws UnsupportedEncodingException { + // Get the text from urlTextBox and convert it to a string. trim() removes white spaces from the beginning and end of the string. + String unformattedUrlString = urlTextBox.getText().toString().trim(); + URL unformattedUrl = null; Uri.Builder formattedUri = new Uri.Builder(); @@ -694,9 +887,9 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome // Use the correct search URL based on javaScriptEnabled. if (javaScriptEnabled) { - formattedUrlString = "https://duckduckgo.com/?q=" + encodedUrlString; - } else { - formattedUrlString = "https://duckduckgo.com/html/?q=" + encodedUrlString; + formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString; + } else { // JavaScript is disabled. + formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString; } } @@ -706,4 +899,16 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateHome InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE); inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0); } + + private void updatePrivacyIcon() { + if (javaScriptEnabled) { + privacyIcon.setIcon(R.drawable.javascript_enabled); + } else { + if (firstPartyCookiesEnabled) { + privacyIcon.setIcon(R.drawable.warning); + } else { + privacyIcon.setIcon(R.drawable.privacy_mode); + } + } + } }