+++ /dev/null
-/*
- * Copyright 2016-2017 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.AlertDialog;
-import android.app.Dialog;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.content.ContextCompat;
-// We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <= 22. `android.support.v7.app.AlertDialog` also uses more of the horizontal screen real estate versus `android.app.AlertDialog's` smaller width.
-import android.support.v7.app.AppCompatDialogFragment;
-import android.util.Base64;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.webkit.WebBackForwardList;
-import android.widget.AdapterView;
-import android.widget.ListView;
-
-import com.stoutner.privacybrowser.R;
-import com.stoutner.privacybrowser.adapters.HistoryArrayAdapter;
-import com.stoutner.privacybrowser.definitions.History;
-
-import java.io.ByteArrayOutputStream;
-import java.util.ArrayList;
-
-public class UrlHistory extends AppCompatDialogFragment{
-
- // `historyArrayList` and `currentPageId` pass information from `onCreate()` to `onCreateDialog()`.
- private ArrayList<History> historyArrayList = new ArrayList<>();
- private int currentPageId;
-
- public static UrlHistory loadBackForwardList(Context context, WebBackForwardList webBackForwardList) {
- // Create `argumentsBundle`.
- Bundle argumentsBundle = new Bundle();
-
- // Store `currentPageIndex`.
- int currentPageIndex = webBackForwardList.getCurrentIndex();
-
- // Setup `urlArrayList` and `iconArrayList`.
- ArrayList<String> urlArrayList = new ArrayList<>();
- ArrayList<String> iconBase64StringArrayList = new ArrayList<>();
-
- // Get the default favorite icon `Drawable`.
- Drawable defaultFavoriteIconDrawable = ContextCompat.getDrawable(context, R.drawable.world);
-
- // Convert `defaultFavoriteIconDrawable` to a `BitmapDrawable`.
- BitmapDrawable defaultFavoriteIconBitmapDrawable = (BitmapDrawable) defaultFavoriteIconDrawable;
-
- // Extract a `Bitmap` from `defaultFavoriteIconBitmapDrawable`.
- Bitmap defaultFavoriteIcon = defaultFavoriteIconBitmapDrawable.getBitmap();
-
- // Populate `urlArrayList` and `iconArrayList` from `webBackForwardList`.
- for (int i=0; i < webBackForwardList.getSize(); i++) {
- // Store the URL.
- urlArrayList.add(webBackForwardList.getItemAtIndex(i).getUrl());
-
- // Create a variable to store the icon `Bitmap`.
- Bitmap iconBitmap;
-
- // Store the icon `Bitmap`.
- if (webBackForwardList.getItemAtIndex(i).getFavicon() == null) {
- // If `webBackForwardList` does not have a favorite icon, use Privacy Browser's default world icon.
- iconBitmap = defaultFavoriteIcon;
- } else { // Get the icon from `webBackForwardList`.
- iconBitmap = webBackForwardList.getItemAtIndex(i).getFavicon();
- }
-
- // Create a `ByteArrayOutputStream`.
- ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
-
- // Convert the favorite icon `Bitmap` to a `ByteArrayOutputStream`. `100` is the compression quality, which is ignored by `PNG`.
- iconBitmap.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream);
-
- // Convert the favorite icon `ByteArrayOutputStream` to a `byte[]`.
- byte[] byteArray = byteArrayOutputStream.toByteArray();
-
- // Encode the favorite icon `byte[]` as a Base64 `String`.
- String iconBase64String = Base64.encodeToString(byteArray, Base64.DEFAULT);
-
- // Store the favorite icon Base64 `String` in `iconBase64StringArrayList`.
- iconBase64StringArrayList.add(iconBase64String);
- }
-
- // Store the variables in the `Bundle`.
- argumentsBundle.putInt("Current_Page", currentPageIndex);
- argumentsBundle.putStringArrayList("URL_History", urlArrayList);
- argumentsBundle.putStringArrayList("Favorite_Icons", iconBase64StringArrayList);
-
- // Add `argumentsBundle` to this instance of `UrlHistory`.
- UrlHistory thisUrlHistoryDialog = new UrlHistory();
- thisUrlHistoryDialog.setArguments(argumentsBundle);
- return thisUrlHistoryDialog;
- }
-
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
-
- // Get the `ArrayLists` from the `Arguments`.
- ArrayList<String> urlStringArrayList = getArguments().getStringArrayList("URL_History");
- ArrayList<String> favoriteIconBase64StringArrayList = getArguments().getStringArrayList("Favorite_Icons");
-
- // Remove the lint warning below that the `ArrayLists` might be `null`.
- assert urlStringArrayList != null;
- assert favoriteIconBase64StringArrayList != null;
-
- // Populate `historyArrayList`. We go down from `urlStringArrayList.size()` so that the newest entries are at the top. `-1` is needed because `historyArrayList` is zero-based.
- for (int i=urlStringArrayList.size() -1; i >= 0; i--) {
- // Decode the favorite icon Base64 `String` to a `byte[]`.
- byte[] favoriteIconByteArray = Base64.decode(favoriteIconBase64StringArrayList.get(i), Base64.DEFAULT);
-
- // Convert the favorite icon `byte[]` to a `Bitmap`. `0` is the starting offset.
- Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
-
- // Store the favorite icon and the URL in `historyEntry`.
- History historyEntry = new History(favoriteIconBitmap, urlStringArrayList.get(i));
-
- // Add this history entry to `historyArrayList`.
- historyArrayList.add(historyEntry);
- }
-
- // Get the original current page ID.
- int originalCurrentPageId = getArguments().getInt("Current_Page");
-
- // Subtract `originalCurrentPageId` from the array size because we reversed the order of the array so that the newest entries are at the top. `-1` is needed because the array is zero-based.
- currentPageId = urlStringArrayList.size() - 1 - originalCurrentPageId;
- }
-
- // The public interface is used to send information back to the parent activity.
- public interface UrlHistoryListener {
- // Send back the number of steps to move forward or back.
- void onUrlHistoryEntrySelected(int moveBackOrForwardSteps);
-
- // Clear the history.
- void onClearHistory();
- }
-
- // `urlHistoryListener` is used in `onAttach()` and `onCreateDialog()`.
- private UrlHistoryListener urlHistoryListener;
-
- @Override
- public void onAttach(Context context) {
- super.onAttach(context);
-
- // Check to make sure tha the parent activity implements the listener.
- try {
- urlHistoryListener = (UrlHistoryListener) context;
- } catch (ClassCastException exception) {
- throw new ClassCastException(context.toString() + " must implement UrlHistoryListener.");
- }
- }
-
- @Override
- @NonNull
- // `@SuppressLing("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 = getActivity().getLayoutInflater();
-
- // Use `AlertDialog.Builder` to create the `AlertDialog`. `R.style.lightAlertDialog` formats the color of the button text.
- AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.LightAlertDialog);
-
- // 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));
-
- // Set an `onClick()` listener on the negative button.
- dialogBuilder.setNegativeButton(R.string.clear_history, new DialogInterface.OnClickListener() {
- @Override
- public void onClick(DialogInterface dialog, int which) {
- // Clear the history.
- urlHistoryListener.onClearHistory();
- }
- });
-
- // Set an `onClick()` listener on the positive button.
- dialogBuilder.setPositiveButton(R.string.close, new DialogInterface.OnClickListener() {
- @Override
- public void onClick(DialogInterface dialog, int which) {
- // Do nothing if `Close` is clicked. The `Dialog` will automatically close.
- }
- });
-
- // Create an `AlertDialog` from the `AlertDialog.Builder`.
- final AlertDialog alertDialog = dialogBuilder.create();
-
- // We need to show `alertDialog` before we can modify the contents.
- alertDialog.show();
-
- // Instantiate a `HistoryArrayAdapter`.
- final HistoryArrayAdapter historyArrayAdapter = new HistoryArrayAdapter(getContext(), historyArrayList, currentPageId);
-
- // Get a handle for `listView`.
- ListView listView = (ListView) alertDialog.findViewById(R.id.history_listview);
-
- // Remove the warning below that `listView` might be `null`.
- assert listView != null;
-
- // Set the adapter on `listView`.
- listView.setAdapter(historyArrayAdapter);
-
- // Listen for clicks on entries in `listView`.
- listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
- @Override
- public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
- // Convert the `long` `id` to an `int`.
- int itemId = (int) id;
-
- // Only enable the click if it is not on the `currentPageId`.
- if (itemId != currentPageId) {
- // Get the history entry for this `itemId`.
- History historyEntry = historyArrayAdapter.getItem(itemId);
-
- // Remove the lint warning below that `historyEntry` might be `null`.
- assert historyEntry != null;
-
- // Send the history entry URL to be loaded in `mainWebView`.
- urlHistoryListener.onUrlHistoryEntrySelected(currentPageId - itemId);
-
- // Dismiss the `Dialog`.
- alertDialog.dismiss();
- }
- }
- });
-
- // `onCreateDialog` requires the return of an `AlertDialog`.
- return alertDialog;
- }
-}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff