+++ /dev/null
-/*
- * Copyright © 2016-2020 Soren Stoutner <soren@stoutner.com>.
- *
- * This file is part of Privacy Browser <https://www.stoutner.com/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
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Privacy Browser is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.stoutner.privacybrowser.dialogs;
-
-import android.annotation.SuppressLint;
-import android.app.Dialog;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.SharedPreferences;
-import android.graphics.Bitmap;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.os.Bundle;
-import android.preference.PreferenceManager;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.WindowManager;
-import android.webkit.WebBackForwardList;
-import android.widget.AdapterView;
-import android.widget.ListView;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AlertDialog;
-import androidx.core.content.ContextCompat;
-import androidx.fragment.app.DialogFragment; // The AndroidX dialog fragment must be used or an error is produced on API <=22.
-
-import com.stoutner.privacybrowser.R;
-import com.stoutner.privacybrowser.activities.MainWebViewActivity;
-import com.stoutner.privacybrowser.adapters.HistoryArrayAdapter;
-import com.stoutner.privacybrowser.definitions.History;
-import com.stoutner.privacybrowser.fragments.WebViewTabFragment;
-import com.stoutner.privacybrowser.views.NestedScrollWebView;
-
-import java.util.ArrayList;
-
-public class UrlHistoryDialog extends DialogFragment{
- // The public interface is used to send information back to the parent activity.
- public interface NavigateHistoryListener {
- void navigateHistory(String url, int steps);
- }
-
- // The navigate history listener is used in `onAttach()` and `onCreateDialog()`.
- private NavigateHistoryListener navigateHistoryListener;
-
- @Override
- public void onAttach(@NonNull Context context) {
- // Run the default commands.
- super.onAttach(context);
-
- // Get a handle for the listener from the launching context.
- navigateHistoryListener = (NavigateHistoryListener) context;
- }
-
- public static UrlHistoryDialog loadBackForwardList(long webViewFragmentId) {
- // Create an arguments bundle.
- Bundle argumentsBundle = new Bundle();
-
- // Store the WebView fragment ID in the bundle.
- argumentsBundle.putLong("webview_fragment_id", webViewFragmentId);
-
- // Create a new instance of the URL history dialog.
- UrlHistoryDialog urlHistoryDialog = new UrlHistoryDialog();
-
- // Add the arguments bundle to this instance.
- urlHistoryDialog.setArguments(argumentsBundle);
-
- // Return the new URL history dialog.
- return urlHistoryDialog;
- }
-
- @Override
- @NonNull
- // `@SuppressLint("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
- @SuppressLint("InflateParams")
- public Dialog onCreateDialog(Bundle savedInstanceState) {
- // Get the activity's layout inflater.
- LayoutInflater layoutInflater = requireActivity().getLayoutInflater();
-
- // Get the arguments.
- Bundle arguments = getArguments();
-
- // Remove the incorrect lint error that arguments might be null.
- assert arguments != null;
-
- // Get the WebView fragment ID from the arguments.
- long webViewFragmentId = arguments.getLong("webview_fragment_id");
-
- // Get the current position of this WebView fragment.
- int webViewPosition = MainWebViewActivity.webViewPagerAdapter.getPositionForId(webViewFragmentId);
-
- // Get the WebView tab fragment.
- WebViewTabFragment webViewTabFragment = MainWebViewActivity.webViewPagerAdapter.getPageFragment(webViewPosition);
-
- // Get the fragment view.
- View fragmentView = webViewTabFragment.getView();
-
- // Remove the incorrect lint warning below that the fragment view might be null.
- assert fragmentView != null;
-
- // Get a handle for the current WebView.
- NestedScrollWebView nestedScrollWebView = fragmentView.findViewById(R.id.nestedscroll_webview);
-
- // Get the web back forward list from the WebView.
- WebBackForwardList webBackForwardList = nestedScrollWebView.copyBackForwardList();
-
- // Store the current page index.
- int currentPageIndex = webBackForwardList.getCurrentIndex();
-
- // Remove the lint warning below that `getContext()` might be null.
- assert getContext() != null;
-
- // Get the default favorite icon drawable. `ContextCompat` must be used until the minimum API >= 21.
- Drawable defaultFavoriteIconDrawable = ContextCompat.getDrawable(getContext(), R.drawable.world);
-
- // Convert the default favorite icon drawable to a `BitmapDrawable`.
- BitmapDrawable defaultFavoriteIconBitmapDrawable = (BitmapDrawable) defaultFavoriteIconDrawable;
-
- // Remove the incorrect lint error that `getBitmap()` might be null.
- assert defaultFavoriteIconBitmapDrawable != null;
-
- // Extract a bitmap from the default favorite icon bitmap drawable.
- Bitmap defaultFavoriteIcon = defaultFavoriteIconBitmapDrawable.getBitmap();
-
- // Create a history array list.
- ArrayList<History> historyArrayList = new ArrayList<>();
-
- // Populate the history array list, descending from the end of the list so that the newest entries are at the top. `-1` is needed because the history array list is zero-based.
- for (int i=webBackForwardList.getSize() -1; i >= 0; i--) {
- // Create a variable to store the favorite icon bitmap.
- Bitmap favoriteIconBitmap;
-
- // Determine the favorite icon bitmap
- if (webBackForwardList.getItemAtIndex(i).getFavicon() == null) {
- // If the web back forward list does not have a favorite icon, use Privacy Browser's default world icon.
- favoriteIconBitmap = defaultFavoriteIcon;
- } else { // Use the icon from the web back forward list.
- favoriteIconBitmap = webBackForwardList.getItemAtIndex(i).getFavicon();
- }
-
- // Store the favorite icon and the URL in history entry.
- History historyEntry = new History(favoriteIconBitmap, webBackForwardList.getItemAtIndex(i).getUrl());
-
- // Add this history entry to the history array list.
- historyArrayList.add(historyEntry);
- }
-
- // Subtract the original current page ID from the array size because the order of the array is reversed so that the newest entries are at the top. `-1` is needed because the array is zero-based.
- int currentPageId = webBackForwardList.getSize() - 1 - currentPageIndex;
-
- // Use an alert dialog builder to create the alert dialog.
- AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog);
-
- // Set the title.
- dialogBuilder.setTitle(R.string.history);
-
- // Set the view. The parent view is `null` because it will be assigned by `AlertDialog`.
- dialogBuilder.setView(layoutInflater.inflate(R.layout.url_history_dialog, null));
-
- // Setup the clear history button.
- dialogBuilder.setNegativeButton(R.string.clear_history, (DialogInterface dialog, int which) -> {
- // Clear the history.
- nestedScrollWebView.clearHistory();
- });
-
- // Set an `onClick()` listener on the positive button.
- dialogBuilder.setPositiveButton(R.string.close, (DialogInterface dialog, int which) -> {
- // Do nothing if `Close` is clicked. The `Dialog` will automatically close.
- });
-
- // Create an alert dialog from the alert dialog builder.
- final AlertDialog alertDialog = dialogBuilder.create();
-
- // Get a handle for the shared preferences.
- SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getContext());
-
- // Get the screenshot preference.
- boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
-
- // Disable screenshots if not allowed.
- if (!allowScreenshots) {
- // Remove the warning below that `getWindow()` might be null.
- assert alertDialog.getWindow() != null;
-
- // Disable screenshots.
- alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
- }
-
- //The alert dialog must be shown before the contents can be modified.
- alertDialog.show();
-
- // Instantiate a history array adapter.
- HistoryArrayAdapter historyArrayAdapter = new HistoryArrayAdapter(getContext(), historyArrayList, currentPageId);
-
- // Get a handle for the list view.
- ListView listView = alertDialog.findViewById(R.id.history_listview);
-
- // Remove the incorrect lint warning below that the view might be null.
- assert listView != null;
-
- // Set the list view adapter.
- listView.setAdapter(historyArrayAdapter);
-
- // Listen for clicks on entries in the list view.
- listView.setOnItemClickListener((AdapterView<?> parent, View view, int position, long id) -> {
- // Convert the long ID to an int.
- int itemId = (int) id;
-
- // Only consume the click if it is not on the `currentPageId`.
- if (itemId != currentPageId) {
- // Get a handle for the URL text view.
- TextView urlTextView = view.findViewById(R.id.history_url_textview);
-
- // Get the URL.
- String url = urlTextView.getText().toString();
-
- // Invoke the navigate history listener in the calling activity. These commands cannot be run here because they need access to `applyDomainSettings()`.
- navigateHistoryListener.navigateHistory(url, currentPageId - itemId);
-
- // Dismiss the alert dialog.
- alertDialog.dismiss();
- }
- });
-
- // Return the alert dialog.
- return alertDialog;
- }
-}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff