+/*
+ * Copyright © 2019 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.AlertDialog;
+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.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 com.stoutner.privacybrowser.R;
+import com.stoutner.privacybrowser.activities.MainWebViewActivity;
+
+import androidx.annotation.NonNull;
+import androidx.core.content.ContextCompat;
+import androidx.fragment.app.DialogFragment;
+import androidx.preference.PreferenceManager;
+
+public class OpenDialog extends DialogFragment {
+ // Define the open listener.
+ private OpenListener openListener;
+
+ // The public interface is used to send information back to the parent activity.
+ public interface OpenListener {
+ void onOpen(DialogFragment dialogFragment);
+ }
+
+ @Override
+ public void onAttach(@NonNull Context context) {
+ // Run the default commands.
+ super.onAttach(context);
+
+ // Get a handle for the open listener from the launching context.
+ openListener = (OpenListener) context;
+ }
+
+ // `@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 activity and the context.
+ Activity activity = getActivity();
+ Context context = getContext();
+
+ // Remove the incorrect lint warnings below that the activity and the context might be null.
+ assert activity != null;
+ assert context != null;
+
+ // Get a handle for the shared preferences.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+
+ // Get the screenshot and theme preferences.
+ boolean darkTheme = sharedPreferences.getBoolean("dark_theme", false);
+ boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
+
+ // Use an alert dialog builder to create the alert dialog.
+ AlertDialog.Builder dialogBuilder;
+
+ // Set the style and icon according to the theme.
+ if (darkTheme) {
+ // Set the style.
+ dialogBuilder = new AlertDialog.Builder(activity, R.style.PrivacyBrowserAlertDialogDark);
+
+ // Set the icon.
+ dialogBuilder.setIcon(R.drawable.proxy_enabled_dark);
+ } else {
+ // Set the style.
+ dialogBuilder = new AlertDialog.Builder(activity, R.style.PrivacyBrowserAlertDialogLight);
+
+ // Set the icon.
+ dialogBuilder.setIcon(R.drawable.proxy_enabled_light);
+ }
+
+ // Set the title.
+ dialogBuilder.setTitle(R.string.open);
+
+ // Set the view. The parent view is null because it will be assigned by the alert dialog.
+ dialogBuilder.setView(activity.getLayoutInflater().inflate(R.layout.open_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 open button listener.
+ dialogBuilder.setPositiveButton(R.string.open, (DialogInterface dialog, int which) -> {
+ // Return the dialog fragment to the parent activity.
+ openListener.onOpen(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;
+
+ // 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.
+ EditText fileNameEditText = alertDialog.findViewById(R.id.file_name_edittext);
+ Button browseButton = alertDialog.findViewById(R.id.browse_button);
+ TextView storagePermissionTextView = alertDialog.findViewById(R.id.storage_permission_textview);
+ Button openButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
+
+ // Create a string for the default file path.
+ String defaultFilePath;
+
+ // Set the default file path according to the storage permission state.
+ if (ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) { // The storage permission has been granted.
+ // Set the default file path to use the external public directory.
+ defaultFilePath = Environment.getExternalStorageDirectory() + "/";
+ } else { // The storage permission has not been granted.
+ // Set the default file path to use the external private directory.
+ defaultFilePath = context.getExternalFilesDir(null) + "/";
+ }
+
+ // Display the default file path.
+ fileNameEditText.setText(defaultFilePath);
+
+ // Move the cursor to the end of the default file path.
+ fileNameEditText.setSelection(defaultFilePath.length());
+
+ // Update the status of the open button when the file name changes.
+ fileNameEditText.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) {
+ // Enable the open button if a file name exists.
+ openButton.setEnabled(!fileNameEditText.getText().toString().isEmpty());
+ }
+ });
+
+ // Handle clicks on the browse button.
+ browseButton.setOnClickListener((View view) -> {
+ // Create the file picker intent.
+ Intent browseIntent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
+
+ // Set the intent MIME type to include all files so that everything is visible.
+ browseIntent.setType("*/*");
+
+ // Set the initial directory if the minimum API >= 26.
+ if (Build.VERSION.SDK_INT >= 26) {
+ browseIntent.putExtra(DocumentsContract.EXTRA_INITIAL_URI, Environment.getExternalStorageDirectory());
+ }
+
+ // Start the file picker. This must be started under `activity` to that the request code is returned correctly.
+ activity.startActivityForResult(browseIntent, MainWebViewActivity.BROWSE_OPEN_REQUEST_CODE);
+ });
+
+ // Hide the storage permission text view on API < 23 as permissions on older devices are automatically granted.
+ if (Build.VERSION.SDK_INT < 23 || (ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)) {
+ storagePermissionTextView.setVisibility(View.GONE);
+ }
+
+ // Return the alert dialog.
+ return alertDialog;
+ }
+}
projects / PrivacyBrowserAndroid.git / commitdiff