--- /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.net.Uri;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+// We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <= 22.
+import android.support.v7.app.AppCompatDialogFragment;
+import android.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.EditText;
+
+import com.stoutner.privacybrowser.R;
+
+// `android.support.v7.app.AlertDialog` uses more of the horizontal screen real estate versus `android.app.AlertDialog's` smaller width.
+// We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <=22.
+public class DownloadImageDialog extends AppCompatDialogFragment {
+
+ private String imageUrl;
+ private String imageFileName;
+
+ public static DownloadImageDialog imageUrl(String imageUrlString) {
+ // Create `argumentsBundle`.
+ Bundle argumentsBundle = new Bundle();
+
+ String imageNameString;
+
+ Uri imageUri = Uri.parse(imageUrlString);
+ imageNameString = imageUri.getLastPathSegment();
+
+ // Store the variables in the `Bundle`.
+ argumentsBundle.putString("URL", imageUrlString);
+ argumentsBundle.putString("Image_Name", imageNameString);
+
+ // Add `argumentsBundle` to this instance of `DownloadFileDialog`.
+ DownloadImageDialog thisDownloadFileDialog = new DownloadImageDialog();
+ thisDownloadFileDialog.setArguments(argumentsBundle);
+ return thisDownloadFileDialog;
+ }
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+
+ // Store the strings in the local class variables.
+ imageUrl = getArguments().getString("URL");
+ imageFileName = getArguments().getString("Image_Name");
+ }
+
+ // The public interface is used to send information back to the parent activity.
+ public interface DownloadImageListener {
+ void onDownloadImage(AppCompatDialogFragment dialogFragment, String downloadUrl);
+ }
+
+ // `downloadImageListener` is used in `onAttach()` and `onCreateDialog()`.
+ private DownloadImageListener downloadImageListener;
+
+ // Check to make sure tha the parent activity implements the listener.
+ @Override
+ public void onAttach(Context context) {
+ super.onAttach(context);
+ try {
+ downloadImageListener = (DownloadImageListener) context;
+ } catch (ClassCastException exception) {
+ throw new ClassCastException(context.toString() + " must implement DownloadImageListener.");
+ }
+ }
+
+ // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
+ @SuppressLint("InflateParams")
+ @Override
+ @NonNull
+ 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);
+ dialogBuilder.setTitle(R.string.save_image_as);
+ // The parent view is `null` because it will be assigned by `AlertDialog`.
+ dialogBuilder.setView(layoutInflater.inflate(R.layout.download_image_dialog, null));
+
+ // Set an `onClick()` listener on the negative button.
+ dialogBuilder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
+ @Override
+ public void onClick(DialogInterface dialog, int which) {
+ // Do nothing if `Cancel` is clicked.
+ }
+ });
+
+ // Set an `onClick()` listener on the positive button
+ dialogBuilder.setPositiveButton(R.string.download, new DialogInterface.OnClickListener() {
+ @Override
+ public void onClick(DialogInterface dialog, int which) {
+ // trigger `onDownloadFile()` and return the `DialogFragment` and the download URL to the parent activity.
+ downloadImageListener.onDownloadImage(DownloadImageDialog.this, imageUrl);
+ }
+ });
+
+
+ // Create an `AlertDialog` from the `AlertDialog.Builder`.
+ final AlertDialog alertDialog = dialogBuilder.create();
+
+ // Remove the warning below that `setSoftInputMode` might produce `java.lang.NullPointerException`.
+ assert alertDialog.getWindow() != null;
+
+ // Show the keyboard when `alertDialog` is displayed on the screen.
+ alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
+
+ // We need to show `alertDialog` before we can modify the contents.
+ alertDialog.show();
+
+ // Set the text for `downloadImageNameTextView`.
+ EditText downloadImageNameTextView = (EditText) alertDialog.findViewById(R.id.download_image_name);
+ assert downloadImageNameTextView != null; // Remove the warning on the following line that `downloadImageNameTextView` might be `null`.
+ downloadImageNameTextView.setText(imageFileName);
+
+ // Allow the `enter` key on the keyboard to save the file from `downloadImageNameTextView`.
+ downloadImageNameTextView.setOnKeyListener(new View.OnKeyListener() {
+ @Override
+ public boolean onKey (View v, int keyCode, KeyEvent event) {
+ // If the event is an `ACTION_DOWN` on the `enter` key, initiate the download.
+ if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
+ // trigger `onDownloadImage()` and return the `DialogFragment` and the URL to the parent activity.
+ downloadImageListener.onDownloadImage(DownloadImageDialog.this, imageUrl);
+ // Manually dismiss `alertDialog`.
+ alertDialog.dismiss();
+ // Consume the event.
+ return true;
+ } else { // If any other key was pressed, do not consume the event.
+ return false;
+ }
+ }
+ });
+
+
+ // `onCreateDialog` requires the return of an `AlertDialog`.
+ return alertDialog;
+ }
+}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff