+++ /dev/null
-/*
- * Copyright © 2019-2021 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.Activity;
-import android.app.Dialog;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.content.res.Configuration;
-import android.os.AsyncTask;
-import android.os.Bundle;
-import android.text.Editable;
-import android.text.InputType;
-import android.text.TextWatcher;
-import android.view.View;
-import android.view.WindowManager;
-import android.widget.Button;
-import android.widget.EditText;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AlertDialog;
-import androidx.fragment.app.DialogFragment;
-import androidx.preference.PreferenceManager;
-
-import com.google.android.material.textfield.TextInputLayout;
-import com.stoutner.privacybrowser.R;
-import com.stoutner.privacybrowser.activities.MainWebViewActivity;
-import com.stoutner.privacybrowser.asynctasks.GetUrlSize;
-
-public class SaveWebpageDialog extends DialogFragment {
- public static final int SAVE_URL = 0;
- public static final int SAVE_IMAGE = 1;
-
- // Define the save webpage listener.
- private SaveWebpageListener saveWebpageListener;
-
- // The public interface is used to send information back to the parent activity.
- public interface SaveWebpageListener {
- void onSaveWebpage(int saveType, String originalUrlString, DialogFragment dialogFragment);
- }
-
- // Define the get URL size AsyncTask. This allows previous instances of the task to be cancelled if a new one is run.
- @SuppressWarnings("rawtypes")
- private AsyncTask getUrlSize;
-
- @Override
- public void onAttach(@NonNull Context context) {
- // Run the default commands.
- super.onAttach(context);
-
- // Get a handle for the save webpage listener from the launching context.
- saveWebpageListener = (SaveWebpageListener) context;
- }
-
- public static SaveWebpageDialog saveWebpage(int saveType, String urlString, String fileSizeString, String contentDispositionFileNameString, String userAgentString, boolean cookiesEnabled) {
- // Create an arguments bundle.
- Bundle argumentsBundle = new Bundle();
-
- // Store the arguments in the bundle.
- argumentsBundle.putInt("save_type", saveType);
- argumentsBundle.putString("url_string", urlString);
- argumentsBundle.putString("file_size_string", fileSizeString);
- argumentsBundle.putString("content_disposition_file_name_string", contentDispositionFileNameString);
- argumentsBundle.putString("user_agent_string", userAgentString);
- argumentsBundle.putBoolean("cookies_enabled", cookiesEnabled);
-
- // Create a new instance of the save webpage dialog.
- SaveWebpageDialog saveWebpageDialog = new SaveWebpageDialog();
-
- // Add the arguments bundle to the new dialog.
- saveWebpageDialog.setArguments(argumentsBundle);
-
- // Return the new dialog.
- return saveWebpageDialog;
- }
-
- // `@SuppressLint("InflateParams")` removes the warning about using null as the parent view group when inflating the alert dialog.
- @SuppressLint("InflateParams")
- @Override
- @NonNull
- public Dialog onCreateDialog(Bundle savedInstanceState) {
- // Get a handle for the arguments.
- Bundle arguments = getArguments();
-
- // Remove the incorrect lint warning that the arguments might be null.
- assert arguments != null;
-
- // Get the arguments from the bundle.
- int saveType = arguments.getInt("save_type");
- String originalUrlString = arguments.getString("url_string");
- String fileSizeString = arguments.getString("file_size_string");
- String contentDispositionFileNameString = arguments.getString("content_disposition_file_name_string");
- String userAgentString = arguments.getString("user_agent_string");
- boolean cookiesEnabled = arguments.getBoolean("cookies_enabled");
-
- // Get handles for the context and the activity.
- Context context = requireContext();
- Activity activity = requireActivity();
-
- // Use an alert dialog builder to create the alert dialog.
- AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(context, R.style.PrivacyBrowserAlertDialog);
-
- // Get the current theme status.
- int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
-
- // Set the title and icon according to the save type.
- switch (saveType) {
- case SAVE_URL:
- // Set the title.
- dialogBuilder.setTitle(R.string.save_url);
-
- // Set the icon according to the theme.
- if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
- dialogBuilder.setIcon(R.drawable.copy_enabled_day);
- } else {
- dialogBuilder.setIcon(R.drawable.copy_enabled_night);
- }
- break;
-
- case SAVE_IMAGE:
- // Set the title.
- dialogBuilder.setTitle(R.string.save_image);
-
- // Set the icon according to the theme.
- if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
- dialogBuilder.setIcon(R.drawable.images_enabled_day);
- } else {
-
- dialogBuilder.setIcon(R.drawable.images_enabled_night);
- }
- break;
- }
-
- // Set the view. The parent view is null because it will be assigned by the alert dialog.
- dialogBuilder.setView(activity.getLayoutInflater().inflate(R.layout.save_webpage_dialog, null));
-
- // Set the cancel button listener. Using `null` as the listener closes the dialog without doing anything else.
- dialogBuilder.setNegativeButton(R.string.cancel, null);
-
- // Set the save button listener.
- dialogBuilder.setPositiveButton(R.string.save, (DialogInterface dialog, int which) -> {
- // Return the dialog fragment to the parent activity.
- saveWebpageListener.onSaveWebpage(saveType, originalUrlString, this);
- });
-
- // Create an alert dialog from the builder.
- AlertDialog alertDialog = dialogBuilder.create();
-
- // Remove the incorrect lint warning below that the window might be null.
- assert alertDialog.getWindow() != null;
-
- // Get a handle for the shared preferences.
- SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
-
- // Get the screenshot preference.
- boolean allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false);
-
- // Disable screenshots if not allowed.
- if (!allowScreenshots) {
- alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
- }
-
- // The alert dialog must be shown before items in the layout can be modified.
- alertDialog.show();
-
- // Get handles for the layout items.
- TextInputLayout urlTextInputLayout = alertDialog.findViewById(R.id.url_textinputlayout);
- EditText urlEditText = alertDialog.findViewById(R.id.url_edittext);
- EditText fileNameEditText = alertDialog.findViewById(R.id.file_name_edittext);
- Button browseButton = alertDialog.findViewById(R.id.browse_button);
- TextView fileSizeTextView = alertDialog.findViewById(R.id.file_size_textview);
- Button saveButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
-
- // Remove the incorrect warnings that the views might be null.
- assert urlTextInputLayout != null;
- assert urlEditText != null;
- assert fileNameEditText != null;
- assert browseButton != null;
- assert fileSizeTextView != null;
-
- // Set the file size text view.
- fileSizeTextView.setText(fileSizeString);
-
- // Modify the layout based on the save type.
- if (saveType == SAVE_URL) { // A URL is being saved.
- // Remove the incorrect lint error below that the URL string might be null.
- assert originalUrlString != null;
-
- // Populate the URL edit text according to the type. This must be done before the text change listener is created below so that the file size isn't requested again.
- if (originalUrlString.startsWith("data:")) { // The URL contains the entire data of an image.
- // Get a substring of the data URL with the first 100 characters. Otherwise, the user interface will freeze while trying to layout the edit text.
- String urlSubstring = originalUrlString.substring(0, 100) + "…";
-
- // Populate the URL edit text with the truncated URL.
- urlEditText.setText(urlSubstring);
-
- // Disable the editing of the URL edit text.
- urlEditText.setInputType(InputType.TYPE_NULL);
- } else { // The URL contains a reference to the location of the data.
- // Populate the URL edit text with the full URL.
- urlEditText.setText(originalUrlString);
- }
-
- // Update the file size and the status of the save button when the URL changes.
- urlEditText.addTextChangedListener(new TextWatcher() {
- @Override
- public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
- // Do nothing.
- }
-
- @Override
- public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
- // Do nothing.
- }
-
- @Override
- public void afterTextChanged(Editable editable) {
- // Cancel the get URL size AsyncTask if it is running.
- if ((getUrlSize != null)) {
- getUrlSize.cancel(true);
- }
-
- // Get the current URL to save.
- String urlToSave = urlEditText.getText().toString();
-
- // Wipe the file size text view.
- fileSizeTextView.setText("");
-
- // Get the file size for the current URL.
- getUrlSize = new GetUrlSize(context, alertDialog, userAgentString, cookiesEnabled).execute(urlToSave);
-
- // Enable the save button if the URL and file name are populated.
- saveButton.setEnabled(!urlToSave.isEmpty() && !fileNameEditText.getText().toString().isEmpty());
- }
- });
- } else { // An archive or an image is being saved.
- // Hide the URL edit text and the file size text view.
- urlTextInputLayout.setVisibility(View.GONE);
- fileSizeTextView.setVisibility(View.GONE);
- }
-
- // Initially disable the save button.
- saveButton.setEnabled(false);
-
- // Update the status of the save button when the file name changes.
- fileNameEditText.addTextChangedListener(new TextWatcher() {
- @Override
- public void beforeTextChanged(CharSequence s, int start, int count, int after) {
- // Do nothing.
- }
-
- @Override
- public void onTextChanged(CharSequence s, int start, int before, int count) {
- // Do nothing.
- }
-
- @Override
- public void afterTextChanged(Editable s) {
- // Get the current file name.
- String fileNameString = fileNameEditText.getText().toString();
-
- // Enable the save button based on the save type.
- if (saveType == SAVE_URL) { // A URL is being saved.
- // Enable the save button if the file name and the URL is populated.
- saveButton.setEnabled(!fileNameString.isEmpty() && !urlEditText.getText().toString().isEmpty());
- } else { // An archive or an image is being saved.
- // Enable the save button if the file name is populated.
- saveButton.setEnabled(!fileNameString.isEmpty());
- }
- }
- });
-
- // Create a file name string.
- String fileName = "";
-
- // Set the file name according to the type.
- switch (saveType) {
- case SAVE_URL:
- // Use the file name from the content disposition.
- fileName = contentDispositionFileNameString;
- break;
-
- case SAVE_IMAGE:
- // Use a file name ending in `.png`.
- fileName = getString(R.string.webpage_png);
- break;
- }
-
- // Save the file name as the default file name. This must be final to be used in the lambda below.
- final String defaultFileName = fileName;
-
- // Handle clicks on the browse button.
- browseButton.setOnClickListener((View view) -> {
- // Create the file picker intent.
- Intent browseIntent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
-
- // Set the intent MIME type to include all files so that everything is visible.
- browseIntent.setType("*/*");
-
- // Set the initial file name according to the type.
- browseIntent.putExtra(Intent.EXTRA_TITLE, defaultFileName);
-
- // Request a file that can be opened.
- browseIntent.addCategory(Intent.CATEGORY_OPENABLE);
-
- // Start the file picker. This must be started under `activity` so that the request code is returned correctly.
- activity.startActivityForResult(browseIntent, MainWebViewActivity.BROWSE_SAVE_WEBPAGE_REQUEST_CODE);
- });
-
- // Return the alert dialog.
- return alertDialog;
- }
-}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff