X-Git-Url: https://gitweb.stoutner.com/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FDownloadImage.java;fp=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FDownloadImage.java;h=ceb0d624b2f378916997aa63840c66bcb8d8056a;hb=ae2ee09aa7a2afc19f5603c9bc021f98888d7b78;hp=0000000000000000000000000000000000000000;hpb=7d632afdd10cad5b4d62fce37707eaceebe260cb;p=PrivacyBrowserAndroid.git diff --git a/app/src/main/java/com/stoutner/privacybrowser/dialogs/DownloadImage.java b/app/src/main/java/com/stoutner/privacybrowser/dialogs/DownloadImage.java new file mode 100644 index 00000000..ceb0d624 --- /dev/null +++ b/app/src/main/java/com/stoutner/privacybrowser/dialogs/DownloadImage.java @@ -0,0 +1,164 @@ +/** + * Copyright 2016 Soren Stoutner . + * + * This file is part of 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 . + */ + +package com.stoutner.privacybrowser.dialogs; + +import android.annotation.SuppressLint; +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; +import android.support.v7.app.AlertDialog; +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 DownloadImage extends AppCompatDialogFragment { + + private String imageUrl; + private String imageFileName; + + public static DownloadImage 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 `DownloadFile`. + DownloadImage thisDownloadFileDialog = new DownloadImage(); + 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(DownloadImage.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(DownloadImage.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