--- /dev/null
+/*
+ * Copyright © 2019-2020 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.Manifest;
+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.pm.PackageManager;
+import android.content.res.Configuration;
+import android.os.AsyncTask;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Environment;
+import android.provider.DocumentsContract;
+import android.text.Editable;
+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.core.content.ContextCompat;
+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;
+import com.stoutner.privacybrowser.helpers.DownloadLocationHelper;
+
+import java.io.File;
+
+public class SaveWebpageDialog extends DialogFragment {
+ // 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, DialogFragment dialogFragment);
+ }
+
+ // Define the get URL size AsyncTask. This allows previous instances of the task to be cancelled if a new one is run.
+ 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 urlString = 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 a handle for the activity and the context.
+ Activity activity = requireActivity();
+ Context context = requireContext();
+
+ // 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 icon according to the theme.
+ if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) { // The night theme is enabled.
+ // Set the icon according to the save type.
+ switch (saveType) {
+ case StoragePermissionDialog.SAVE_URL:
+ dialogBuilder.setIcon(R.drawable.copy_enabled_night);
+ break;
+
+ case StoragePermissionDialog.SAVE_ARCHIVE:
+ dialogBuilder.setIcon(R.drawable.dom_storage_cleared_night);
+ break;
+
+ case StoragePermissionDialog.SAVE_IMAGE:
+ dialogBuilder.setIcon(R.drawable.images_enabled_night);
+ break;
+ }
+ } else { // The day theme is enabled.
+ // Set the icon according to the save type.
+ switch (saveType) {
+ case StoragePermissionDialog.SAVE_URL:
+ dialogBuilder.setIcon(R.drawable.copy_enabled_day);
+ break;
+
+ case StoragePermissionDialog.SAVE_ARCHIVE:
+ dialogBuilder.setIcon(R.drawable.dom_storage_cleared_day);
+ break;
+
+ case StoragePermissionDialog.SAVE_IMAGE:
+ dialogBuilder.setIcon(R.drawable.images_enabled_day);
+ break;
+ }
+ }
+
+ // Set the title according to the type.
+ switch (saveType) {
+ case StoragePermissionDialog.SAVE_URL:
+ dialogBuilder.setTitle(R.string.save);
+ break;
+
+ case StoragePermissionDialog.SAVE_ARCHIVE:
+ dialogBuilder.setTitle(R.string.save_archive);
+ break;
+
+ case StoragePermissionDialog.SAVE_IMAGE:
+ dialogBuilder.setTitle(R.string.save_image);
+ 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_url_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, 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("allow_screenshots", 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);
+ TextView fileExistsWarningTextView = alertDialog.findViewById(R.id.file_exists_warning_textview);
+ TextView storagePermissionTextView = alertDialog.findViewById(R.id.storage_permission_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;
+ assert fileExistsWarningTextView != null;
+ assert storagePermissionTextView != null;
+
+ // Set the file size text view.
+ fileSizeTextView.setText(fileSizeString);
+
+ // Modify the layout based on the save type.
+ if (saveType == StoragePermissionDialog.SAVE_URL) { // A URL is being saved.
+ // Populate the URL edit text. This must be done before the text change listener is created below so that the file size isn't requested again.
+ urlEditText.setText(urlString);
+
+ // 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);
+ }
+
+ // 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();
+
+ // Convert the file name string to a file.
+ File file = new File(fileNameString);
+
+ // Check to see if the file exists.
+ if (file.exists()) {
+ // Show the file exists warning.
+ fileExistsWarningTextView.setVisibility(View.VISIBLE);
+ } else {
+ // Hide the file exists warning.
+ fileExistsWarningTextView.setVisibility(View.GONE);
+ }
+
+ // Enable the save button based on the save type.
+ if (saveType == StoragePermissionDialog.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 StoragePermissionDialog.SAVE_URL:
+ // Use the file name from the content disposition.
+ fileName = contentDispositionFileNameString;
+ break;
+
+ case StoragePermissionDialog.SAVE_ARCHIVE:
+ // Use an archive name ending in `.mht`.
+ fileName = getString(R.string.webpage_mht);
+ break;
+
+ case StoragePermissionDialog.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;
+
+ // Instantiate the download location helper.
+ DownloadLocationHelper downloadLocationHelper = new DownloadLocationHelper();
+
+ // Get the default file path.
+ String defaultFilePath = downloadLocationHelper.getDownloadLocation(context) + "/" + defaultFileName;
+
+ // Populate the file name edit text.
+ fileNameEditText.setText(defaultFilePath);
+
+ // Move the cursor to the end of the default file path.
+ fileNameEditText.setSelection(defaultFilePath.length());
+
+ // 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);
+
+ // Set the initial directory if the minimum API >= 26.
+ if (Build.VERSION.SDK_INT >= 26) {
+ browseIntent.putExtra(DocumentsContract.EXTRA_INITIAL_URI, Environment.getExternalStorageDirectory());
+ }
+
+ // 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);
+ });
+
+ // Hide the storage permission text view if the permission has already been granted.
+ if (ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
+ storagePermissionTextView.setVisibility(View.GONE);
+ }
+
+ // Return the alert dialog.
+ return alertDialog;
+ }
+}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff