X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FDownloadFileDialog.java;h=eb2b0ebf827cdbf7678e15529fd131a59667c585;hp=a348fb90cc109580f8ba229f32bd75d464d879be;hb=c1c9a0bf83ecef671356d554bb6e4927392b1cc8;hpb=f82135d919d64d4909c37c79a18e14ceba802579 diff --git a/app/src/main/java/com/stoutner/privacybrowser/dialogs/DownloadFileDialog.java b/app/src/main/java/com/stoutner/privacybrowser/dialogs/DownloadFileDialog.java index a348fb90..eb2b0ebf 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/dialogs/DownloadFileDialog.java +++ b/app/src/main/java/com/stoutner/privacybrowser/dialogs/DownloadFileDialog.java @@ -1,5 +1,5 @@ /* - * Copyright © 2016-2017 Soren Stoutner . + * Copyright © 2016-2019 Soren Stoutner . * * This file is part of Privacy Browser . * @@ -24,165 +24,181 @@ import android.app.AlertDialog; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; +import android.content.SharedPreferences; 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.preference.PreferenceManager; import android.view.KeyEvent; -import android.view.LayoutInflater; import android.view.View; import android.view.WindowManager; import android.widget.EditText; import android.widget.TextView; +import androidx.annotation.NonNull; +import androidx.fragment.app.DialogFragment; // The AndroidX dialog fragment must be used or an error is produced on API <=22. + import com.stoutner.privacybrowser.R; import java.util.Locale; -public class DownloadFileDialog extends AppCompatDialogFragment { +public class DownloadFileDialog extends DialogFragment { + // `downloadFileListener` is used in `onAttach()` and `onCreateDialog()`. + private DownloadFileListener downloadFileListener; + + // The public interface is used to send information back to the parent activity. + public interface DownloadFileListener { + void onDownloadFile(DialogFragment dialogFragment, String downloadUrl); + } + + @Override + public void onAttach(Context context) { + // Run the default commands. + super.onAttach(context); - private String downloadUrl; - private String downloadFileName; - private String fileSize; + // Get a handle for `DownloadFileListener` from the launching context. + downloadFileListener = (DownloadFileListener) context; + } public static DownloadFileDialog fromUrl(String urlString, String contentDisposition, long contentLength) { - // Create `argumentsBundle`. + // Create an arguments bundle. Bundle argumentsBundle = new Bundle(); + // Create a variable for the file name string. String fileNameString; - // Parse `filename` from `contentDisposition`. + // Get the index of the end of `filename=` from the file name string. + int fileNameIndex = contentDisposition.indexOf("filename=") + 9; + + // Parse the filename from `contentDisposition`. if (contentDisposition.contains("filename=\"")) { // The file name is contained in a string surrounded by `""`. fileNameString = contentDisposition.substring(contentDisposition.indexOf("filename=\"") + 10, contentDisposition.indexOf("\"", contentDisposition.indexOf("filename=\"") + 10)); - } else if (contentDisposition.contains("filename=") && ((contentDisposition.indexOf(";", contentDisposition.indexOf("filename=") + 9)) > 0 )) { // The file name is contained in a string beginning with `filename=` and ending with `;`. - fileNameString = contentDisposition.substring(contentDisposition.indexOf("filename=") + 9, contentDisposition.indexOf(";", contentDisposition.indexOf("filename=") + 9)); + } else if (contentDisposition.contains("filename=") && ((contentDisposition.indexOf(";", fileNameIndex)) > 0 )) { + // The file name is contained in a string beginning with `filename=` and ending with `;`. + fileNameString = contentDisposition.substring(fileNameIndex, contentDisposition.indexOf(";", fileNameIndex)); } else if (contentDisposition.contains("filename=")) { // The file name is contained in a string beginning with `filename=` and proceeding to the end of `contentDisposition`. - fileNameString = contentDisposition.substring(contentDisposition.indexOf("filename=") + 9, contentDisposition.length()); + fileNameString = contentDisposition.substring(fileNameIndex); } else { // `contentDisposition` does not contain the filename, so use the last path segment of the URL. Uri downloadUri = Uri.parse(urlString); fileNameString = downloadUri.getLastPathSegment(); } - // Store the variables in the `Bundle`. + // Store the variables in the bundle. argumentsBundle.putString("URL", urlString); argumentsBundle.putString("File_Name", fileNameString); argumentsBundle.putLong("File_Size", contentLength); - // Add `argumentsBundle` to this instance of `DownloadFileDialog`. + // Add the arguments bundle to this instance of `DownloadFileDialog`. DownloadFileDialog thisDownloadFileDialog = new DownloadFileDialog(); thisDownloadFileDialog.setArguments(argumentsBundle); return thisDownloadFileDialog; } @Override - public void onCreate(Bundle savedInstanceState) { - super.onCreate(savedInstanceState); - - // Store the strings in the local class variables. - downloadUrl = getArguments().getString("URL"); - downloadFileName = getArguments().getString("File_Name"); + @NonNull + // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`. + @SuppressLint("InflateParams") + public Dialog onCreateDialog(Bundle savedInstanceState) { + // Remove the warning below that `getArguments()` might be null. + assert getArguments() != null; - // Get the `File_Size`. + // Store the variables from the bundle. + String downloadUrl = getArguments().getString("URL"); + String downloadFileName = getArguments().getString("File_Name"); long fileSizeLong = getArguments().getLong("File_Size"); + // Initialize the file size string. + String fileSize; + // Convert `fileSizeLong` to a String. if (fileSizeLong == -1) { // We don't know the file size. fileSize = getString(R.string.unknown_size); } else { // Convert `fileSize` to MB and store it in `fileSizeString`. `%.3g` displays the three most significant digits. fileSize = String.format(Locale.getDefault(), "%.3g", (float) fileSizeLong / 1048576) + " MB"; } - } - // The public interface is used to send information back to the parent activity. - public interface DownloadFileListener { - void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl); - } + // Get a handle for the shared preferences. + SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getContext()); - // `downloadFileListener` is used in `onAttach()` and `onCreateDialog()`. - private DownloadFileListener downloadFileListener; + // Get the screenshot and theme preferences. + boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false); + boolean darkTheme = sharedPreferences.getBoolean("dark_theme", false); - @Override - public void onAttach(Context context) { - super.onAttach(context); + // Use an alert dialog builder to create the alert dialog. + AlertDialog.Builder dialogBuilder; - // Check to make sure the parent activity implements the listener. - try { - downloadFileListener = (DownloadFileListener) context; - } catch (ClassCastException exception) { - throw new ClassCastException(context.toString() + " must implement DownloadFileListener."); + // Set the style according to the theme. + if (darkTheme) { + dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogDark); + } else { + dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogLight); } - } - - @Override - @NonNull - // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`. - @SuppressLint("InflateParams") - 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); // Set the title. dialogBuilder.setTitle(R.string.save_as); + // Set the icon according to the theme. + if (darkTheme) { + dialogBuilder.setIcon(R.drawable.save_dialog_dark); + } else { + dialogBuilder.setIcon(R.drawable.save_dialog_light); + } + + // Remove the warning below that `getActivity()` might be null; + assert getActivity() != null; + // Set the view. The parent view is `null` because it will be assigned by `AlertDialog`. - dialogBuilder.setView(layoutInflater.inflate(R.layout.download_file_dialog, null)); + dialogBuilder.setView(getActivity().getLayoutInflater().inflate(R.layout.download_file_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. The `Dialog` will automatically close. - } + // Set an listener on the negative button. + dialogBuilder.setNegativeButton(R.string.cancel, (DialogInterface dialog, int which) -> { + // Do nothing if `Cancel` is clicked. The `Dialog` will automatically close. }); - // 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. - downloadFileListener.onDownloadFile(DownloadFileDialog.this, downloadUrl); - } + // Set an listener on the positive button + dialogBuilder.setPositiveButton(R.string.download, (DialogInterface dialog, int which) -> { + // trigger `onDownloadFile()` and return the `DialogFragment` and the download URL to the parent activity. + downloadFileListener.onDownloadFile(DownloadFileDialog.this, downloadUrl); }); - // Create an `AlertDialog` from the `AlertDialog.Builder`. + // Create an alert dialog from the alert dialog builder`. final AlertDialog alertDialog = dialogBuilder.create(); - // Remove the warning below that `setSoftInputMode` might produce `java.lang.NullPointerException`. + // Remove the warning below that `getWindow()` might be null. assert alertDialog.getWindow() != null; - // Show the keyboard when `alertDialog` is displayed on the screen. + // Disable screenshots if not allowed. + if (!allowScreenshots) { + alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE); + } + + // Show the keyboard when alert dialog 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 `downloadFileSizeTextView`. - TextView downloadFileSizeTextView = (TextView) alertDialog.findViewById(R.id.download_file_size); + TextView downloadFileSizeTextView = alertDialog.findViewById(R.id.download_file_size); downloadFileSizeTextView.setText(fileSize); // Set the text for `downloadFileNameTextView`. - EditText downloadFileNameTextView = (EditText) alertDialog.findViewById(R.id.download_file_name); + EditText downloadFileNameTextView = alertDialog.findViewById(R.id.download_file_name); downloadFileNameTextView.setText(downloadFileName); // Allow the `enter` key on the keyboard to save the file from `downloadFileNameTextView`. - downloadFileNameTextView.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 `onDownloadFile()` and return the `DialogFragment` and the URL to the parent activity. - downloadFileListener.onDownloadFile(DownloadFileDialog.this, downloadUrl); - // Manually dismiss `alertDialog`. - alertDialog.dismiss(); - // Consume the event. - return true; - } else { // If any other key was pressed, do not consume the event. - return false; - } + downloadFileNameTextView.setOnKeyListener((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 `onDownloadFile()` and return the `DialogFragment` and the URL to the parent activity. + downloadFileListener.onDownloadFile(DownloadFileDialog.this, downloadUrl); + + // Manually dismiss the alert dialog. + alertDialog.dismiss(); + + // Consume the event. + return true; + } else { // If any other key was pressed, do not consume the event. + return false; } });