import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
+
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
+
import java.text.NumberFormat;
+
import java.util.ArrayList;
+import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
private boolean downloadWithExternalApp;
private boolean hideAppBar;
private boolean scrollAppBar;
+ private boolean bottomAppBar;
private boolean loadingNewIntent;
private boolean reapplyDomainSettingsOnRestart;
private boolean reapplyAppSettingsOnRestart;
private boolean sanitizeFacebookClickIds;
private boolean sanitizeTwitterAmpRedirects;
+ // Define the class variables.
+ private long lastScrollUpdate = 0;
+
// Declare the class views.
private FrameLayout rootFrameLayout;
private DrawerLayout drawerLayout;
// Get a handle for the shared preferences.
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
- // Get the screenshot preference.
+ // Get the preferences.
String appTheme = sharedPreferences.getString("app_theme", getString(R.string.app_theme_default_value));
boolean allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false);
+ bottomAppBar = sharedPreferences.getBoolean(getString(R.string.bottom_app_bar_key), false);
// Get the theme entry values string array.
String[] appThemeEntryValuesStringArray = getResources().getStringArray(R.array.app_theme_entry_values);
setTheme(R.style.PrivacyBrowser);
// Set the content view.
- setContentView(R.layout.main_framelayout);
+ if (bottomAppBar) {
+ setContentView(R.layout.main_framelayout_bottom_appbar);
+ } else {
+ setContentView(R.layout.main_framelayout_top_appbar);
+ }
// Get handles for the views.
rootFrameLayout = findViewById(R.id.root_framelayout);
});
// Implement swipe to refresh.
- swipeRefreshLayout.setOnRefreshListener(() -> currentWebView.reload());
+ swipeRefreshLayout.setOnRefreshListener(() -> {
+ // Check the visibility of the bottom app bar. Sometimes it is hidden if the WebView is the same size as the visible screen.
+ if (bottomAppBar && scrollAppBar && (appBarLayout.getVisibility() == View.GONE)) { // The bottom app bar is currently hidden.
+ // Show the app bar.
+ appBarLayout.setVisibility(View.VISIBLE);
+
+ // Disable the refreshing animation.
+ swipeRefreshLayout.setRefreshing(false);
+ } else { // A bottom app bar is not currently hidden.
+ // Reload the website.
+ currentWebView.reload();
+ }
+ });
// Store the default progress view offsets for use later in `initializeWebView()`.
defaultProgressViewStartOffset = swipeRefreshLayout.getProgressViewStartOffset();
// Apply the proxy.
applyProxy(false);
- // Get the current layout parameters. Using coordinator layout parameters allows the `setBehavior()` command and using app bar layout parameters allows the `setScrollFlags()` command.
- CoordinatorLayout.LayoutParams swipeRefreshLayoutParams = (CoordinatorLayout.LayoutParams) swipeRefreshLayout.getLayoutParams();
- AppBarLayout.LayoutParams toolbarLayoutParams = (AppBarLayout.LayoutParams) toolbar.getLayoutParams();
- AppBarLayout.LayoutParams findOnPageLayoutParams = (AppBarLayout.LayoutParams) findOnPageLinearLayout.getLayoutParams();
- AppBarLayout.LayoutParams tabsLayoutParams = (AppBarLayout.LayoutParams) tabsLinearLayout.getLayoutParams();
-
- // Add the scrolling behavior to the layout parameters.
- if (scrollAppBar) {
- // Enable scrolling of the app bar.
- swipeRefreshLayoutParams.setBehavior(new AppBarLayout.ScrollingViewBehavior());
- toolbarLayoutParams.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL | AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS | AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP);
- findOnPageLayoutParams.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL | AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS | AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP);
- tabsLayoutParams.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL | AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS | AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP);
- } else {
- // Disable scrolling of the app bar.
- swipeRefreshLayoutParams.setBehavior(null);
- toolbarLayoutParams.setScrollFlags(0);
- findOnPageLayoutParams.setScrollFlags(0);
- tabsLayoutParams.setScrollFlags(0);
-
- // Expand the app bar if it is currently collapsed.
- appBarLayout.setExpanded(true);
- }
-
- // Apply the modified layout parameters.
- swipeRefreshLayout.setLayoutParams(swipeRefreshLayoutParams);
- toolbar.setLayoutParams(toolbarLayoutParams);
- findOnPageLinearLayout.setLayoutParams(findOnPageLayoutParams);
- tabsLinearLayout.setLayoutParams(tabsLayoutParams);
+ // Adjust the layout and scrolling parameters if the app bar is at the top of the screen.
+ if (!bottomAppBar) {
+ // Get the current layout parameters. Using coordinator layout parameters allows the `setBehavior()` command and using app bar layout parameters allows the `setScrollFlags()` command.
+ CoordinatorLayout.LayoutParams swipeRefreshLayoutParams = (CoordinatorLayout.LayoutParams) swipeRefreshLayout.getLayoutParams();
+ AppBarLayout.LayoutParams toolbarLayoutParams = (AppBarLayout.LayoutParams) toolbar.getLayoutParams();
+ AppBarLayout.LayoutParams findOnPageLayoutParams = (AppBarLayout.LayoutParams) findOnPageLinearLayout.getLayoutParams();
+ AppBarLayout.LayoutParams tabsLayoutParams = (AppBarLayout.LayoutParams) tabsLinearLayout.getLayoutParams();
+
+ // Add the scrolling behavior to the layout parameters.
+ if (scrollAppBar) {
+ // Enable scrolling of the app bar.
+ swipeRefreshLayoutParams.setBehavior(new AppBarLayout.ScrollingViewBehavior());
+ toolbarLayoutParams.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL | AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS | AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP);
+ findOnPageLayoutParams.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL | AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS | AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP);
+ tabsLayoutParams.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL | AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS | AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP);
+ } else {
+ // Disable scrolling of the app bar.
+ swipeRefreshLayoutParams.setBehavior(null);
+ toolbarLayoutParams.setScrollFlags(0);
+ findOnPageLayoutParams.setScrollFlags(0);
+ tabsLayoutParams.setScrollFlags(0);
+
+ // Expand the app bar if it is currently collapsed.
+ appBarLayout.setExpanded(true);
+ }
- // Set the app bar scrolling for each WebView.
- for (int i = 0; i < webViewPagerAdapter.getCount(); i++) {
- // Get the WebView tab fragment.
- WebViewTabFragment webViewTabFragment = webViewPagerAdapter.getPageFragment(i);
+ // Set the app bar scrolling for each WebView.
+ for (int i = 0; i < webViewPagerAdapter.getCount(); i++) {
+ // Get the WebView tab fragment.
+ WebViewTabFragment webViewTabFragment = webViewPagerAdapter.getPageFragment(i);
- // Get the fragment view.
- View fragmentView = webViewTabFragment.getView();
+ // Get the fragment view.
+ View fragmentView = webViewTabFragment.getView();
- // Only modify the WebViews if they exist.
- if (fragmentView != null) {
- // Get the nested scroll WebView from the tab fragment.
- NestedScrollWebView nestedScrollWebView = fragmentView.findViewById(R.id.nestedscroll_webview);
+ // Only modify the WebViews if they exist.
+ if (fragmentView != null) {
+ // Get the nested scroll WebView from the tab fragment.
+ NestedScrollWebView nestedScrollWebView = fragmentView.findViewById(R.id.nestedscroll_webview);
- // Set the app bar scrolling.
- nestedScrollWebView.setNestedScrollingEnabled(scrollAppBar);
+ // Set the app bar scrolling.
+ nestedScrollWebView.setNestedScrollingEnabled(scrollAppBar);
+ }
}
}
// Hide the action bar.
actionBar.hide();
- // Check to see if the app bar is normally scrolled.
- if (scrollAppBar) { // The app bar is scrolled when it is displayed.
- // Get the swipe refresh layout parameters.
- CoordinatorLayout.LayoutParams swipeRefreshLayoutParams = (CoordinatorLayout.LayoutParams) swipeRefreshLayout.getLayoutParams();
-
- // Remove the off-screen scrolling layout.
- swipeRefreshLayoutParams.setBehavior(null);
- } else { // The app bar is not scrolled when it is displayed.
- // Remove the padding from the top of the swipe refresh layout.
- swipeRefreshLayout.setPadding(0, 0, 0, 0);
-
- // The swipe refresh circle must be moved above the now removed status bar location.
- swipeRefreshLayout.setProgressViewOffset(false, -200, defaultProgressViewEndOffset);
+ // Set layout and scrolling parameters if the app bar is at the top of the screen.
+ if (!bottomAppBar) {
+ // Check to see if the app bar is normally scrolled.
+ if (scrollAppBar) { // The app bar is scrolled when it is displayed.
+ // Get the swipe refresh layout parameters.
+ CoordinatorLayout.LayoutParams swipeRefreshLayoutParams = (CoordinatorLayout.LayoutParams) swipeRefreshLayout.getLayoutParams();
+
+ // Remove the off-screen scrolling layout.
+ swipeRefreshLayoutParams.setBehavior(null);
+ } else { // The app bar is not scrolled when it is displayed.
+ // Remove the padding from the top of the swipe refresh layout.
+ swipeRefreshLayout.setPadding(0, 0, 0, 0);
+
+ // The swipe refresh circle must be moved above the now removed status bar location.
+ swipeRefreshLayout.setProgressViewOffset(false, -200, defaultProgressViewEndOffset);
+ }
}
}
// Show the action bar.
actionBar.show();
- // Check to see if the app bar is normally scrolled.
- if (scrollAppBar) { // The app bar is scrolled when it is displayed.
- // Get the swipe refresh layout parameters.
- CoordinatorLayout.LayoutParams swipeRefreshLayoutParams = (CoordinatorLayout.LayoutParams) swipeRefreshLayout.getLayoutParams();
-
- // Add the off-screen scrolling layout.
- swipeRefreshLayoutParams.setBehavior(new AppBarLayout.ScrollingViewBehavior());
- } else { // The app bar is not scrolled when it is displayed.
- // The swipe refresh layout must be manually moved below the app bar layout.
- swipeRefreshLayout.setPadding(0, appBarHeight, 0, 0);
-
- // The swipe to refresh circle doesn't always hide itself completely unless it is moved up 10 pixels.
- swipeRefreshLayout.setProgressViewOffset(false, defaultProgressViewStartOffset - 10 + appBarHeight, defaultProgressViewEndOffset + appBarHeight);
+ // Set layout and scrolling parameters if the app bar is at the top of the screen.
+ if (!bottomAppBar) {
+ // Check to see if the app bar is normally scrolled.
+ if (scrollAppBar) { // The app bar is scrolled when it is displayed.
+ // Get the swipe refresh layout parameters.
+ CoordinatorLayout.LayoutParams swipeRefreshLayoutParams = (CoordinatorLayout.LayoutParams) swipeRefreshLayout.getLayoutParams();
+
+ // Add the off-screen scrolling layout.
+ swipeRefreshLayoutParams.setBehavior(new AppBarLayout.ScrollingViewBehavior());
+ } else { // The app bar is not scrolled when it is displayed.
+ // The swipe refresh layout must be manually moved below the app bar layout.
+ swipeRefreshLayout.setPadding(0, appBarHeight, 0, 0);
+
+ // The swipe to refresh circle doesn't always hide itself completely unless it is moved up 10 pixels.
+ swipeRefreshLayout.setProgressViewOffset(false, defaultProgressViewStartOffset - 10 + appBarHeight, defaultProgressViewEndOffset + appBarHeight);
+ }
}
}
// Update the status of swipe to refresh based on the scroll position of the nested scroll WebView. Also reinforce full screen browsing mode.
// On API < 23, `getViewTreeObserver().addOnScrollChangedListener()` must be used, but it is a little bit buggy and appears to get garbage collected from time to time.
if (Build.VERSION.SDK_INT >= 23) {
- nestedScrollWebView.setOnScrollChangeListener((view, i, i1, i2, i3) -> {
+ nestedScrollWebView.setOnScrollChangeListener((view, scrollX, scrollY, oldScrollX, oldScrollY) -> {
+ // Set the swipe to refresh status.
if (nestedScrollWebView.getSwipeToRefresh()) {
// Only enable swipe to refresh if the WebView is scrolled to the top.
swipeRefreshLayout.setEnabled(nestedScrollWebView.getScrollY() == 0);
swipeRefreshLayout.setEnabled(false);
}
+ // Set the visibility of the bottom app bar.
+ if (bottomAppBar && scrollAppBar && (Calendar.getInstance().getTimeInMillis() - lastScrollUpdate > 100)) {
+ if (scrollY - oldScrollY > 25) { // The WebView was scrolled down.
+ appBarLayout.setVisibility(View.GONE);
+ } else if (scrollY - oldScrollY < -25) { // The WebView was scrolled up.
+ appBarLayout.setVisibility(View.VISIBLE);
+ }
+
+ // Update the last scroll update variable. This prevents the app bar from flashing on and off at the bottom of the screen.
+ lastScrollUpdate = Calendar.getInstance().getTimeInMillis();
+ }
+
// Reinforce the system UI visibility flags if in full screen browsing mode.
// This hides the status and navigation bars, which are displayed if other elements are shown, like dialog boxes, the options menu, or the keyboard.
if (inFullScreenBrowsingMode) {
swipeRefreshLayout.setEnabled(false);
}
-
// Reinforce the system UI visibility flags if in full screen browsing mode.
// This hides the status and navigation bars, which are displayed if other elements are shown, like dialog boxes, the options menu, or the keyboard.
if (inFullScreenBrowsingMode) {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
- // Get the preferences.
- boolean scrollAppBar = sharedPreferences.getBoolean("scroll_app_bar", true);
-
- // Set the top padding of the swipe refresh layout according to the app bar scrolling preference. This can't be done in `appAppSettings()` because the app bar is not yet populated there.
- if (scrollAppBar || (inFullScreenBrowsingMode && hideAppBar)) {
- // No padding is needed because it will automatically be placed below the app bar layout due to the scrolling layout behavior.
- swipeRefreshLayout.setPadding(0, 0, 0, 0);
-
- // The swipe to refresh circle doesn't always hide itself completely unless it is moved up 10 pixels.
- swipeRefreshLayout.setProgressViewOffset(false, defaultProgressViewStartOffset - 10, defaultProgressViewEndOffset);
- } else {
- // Get the app bar layout height. This can't be done in `applyAppSettings()` because the app bar is not yet populated there.
- appBarHeight = appBarLayout.getHeight();
-
- // The swipe refresh layout must be manually moved below the app bar layout.
- swipeRefreshLayout.setPadding(0, appBarHeight, 0, 0);
-
- // The swipe to refresh circle doesn't always hide itself completely unless it is moved up 10 pixels.
- swipeRefreshLayout.setProgressViewOffset(false, defaultProgressViewStartOffset - 10 + appBarHeight, defaultProgressViewEndOffset + appBarHeight);
+ // Set the padding and layout settings if the app bar is at the top of the screen.
+ if (!bottomAppBar) {
+ // Set the top padding of the swipe refresh layout according to the app bar scrolling preference. This can't be done in `appAppSettings()` because the app bar is not yet populated there.
+ if (scrollAppBar || (inFullScreenBrowsingMode && hideAppBar)) {
+ // No padding is needed because it will automatically be placed below the app bar layout due to the scrolling layout behavior.
+ swipeRefreshLayout.setPadding(0, 0, 0, 0);
+
+ // The swipe to refresh circle doesn't always hide itself completely unless it is moved up 10 pixels.
+ swipeRefreshLayout.setProgressViewOffset(false, defaultProgressViewStartOffset - 10, defaultProgressViewEndOffset);
+ } else {
+ // Get the app bar layout height. This can't be done in `applyAppSettings()` because the app bar is not yet populated there.
+ appBarHeight = appBarLayout.getHeight();
+
+ // The swipe refresh layout must be manually moved below the app bar layout.
+ swipeRefreshLayout.setPadding(0, appBarHeight, 0, 0);
+
+ // The swipe to refresh circle doesn't always hide itself completely unless it is moved up 10 pixels.
+ swipeRefreshLayout.setProgressViewOffset(false, defaultProgressViewStartOffset - 10 + appBarHeight, defaultProgressViewEndOffset + appBarHeight);
+ }
}
// Reset the list of resource requests.