Add a forward and back history list. Resolves https://redmine.stoutner.com/issues/24.

[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / DownloadFile.java

diff --git a/app/src/main/java/com/stoutner/privacybrowser/DownloadFile.java b/app/src/main/java/com/stoutner/privacybrowser/DownloadFile.java
index 0a1d1dcab81a713c2a0b7f090f85f109453867e6..1a68f71fd82dd479365d7a91c82b2ba11434c5fa 100644 (file)
--- a/app/src/main/java/com/stoutner/privacybrowser/DownloadFile.java
+++ b/app/src/main/java/com/stoutner/privacybrowser/DownloadFile.java
@@ -21,13 +21,15 @@ package com.stoutner.privacybrowser;
 
 import android.annotation.SuppressLint;
 import android.app.Dialog;
-import android.app.DialogFragment;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.net.Uri;
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 // `android.support.v7.app.AlertDialog` uses more of the horizontal screen real estate versus `android.app.AlertDialog's` smaller width.
 import android.support.v7.app.AlertDialog;
+// 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;
@@ -37,7 +39,7 @@ import android.widget.TextView;
 
 import java.util.Locale;
 
-public class DownloadFile extends DialogFragment {
+public class DownloadFile extends AppCompatDialogFragment {
 
     private String downloadUrl;
     private String downloadFileName;
@@ -48,9 +50,15 @@ public class DownloadFile extends DialogFragment {
         Bundle argumentsBundle = new Bundle();
 
         String fileNameString;
-        if (!contentDisposition.isEmpty()) {  // Extract `fileNameString` from `contentDisposition` using the substring beginning after `filename="` and ending with the next `"`.
+
+        // Parse `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 {  // `contentDisposition` is empty, so use the last path segment of the URL as the file name.
+        } 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=")) {  // 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());
+        } else {  // `contentDisposition` does not contain the filename, so use the last path segment of the URL.
             Uri downloadUri = Uri.parse(urlString);
             fileNameString = downloadUri.getLastPathSegment();
         }
@@ -87,16 +95,17 @@ public class DownloadFile extends DialogFragment {
 
     // The public interface is used to send information back to the parent activity.
     public interface DownloadFileListener {
-        void onDownloadFile(DialogFragment dialogFragment, String downloadUrl);
+        void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl);
     }
 
     // `downloadFileListener` is used in `onAttach()` and `onCreateDialog()`.
     private DownloadFileListener downloadFileListener;
 
-    // Check to make sure tha the parent activity implements the listener.
     @Override
     public void onAttach(Context context) {
         super.onAttach(context);
+
+        // Check to make sure the parent activity implements the listener.
         try {
             downloadFileListener = (DownloadFileListener) context;
         } catch (ClassCastException exception) {
@@ -104,24 +113,28 @@ public class DownloadFile extends DialogFragment {
         }
     }
 
+    @Override
+    @NonNull
     // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
     @SuppressLint("InflateParams")
-    @Override
     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);
-        // The parent view is `null` because it will be assigned by `AlertDialog`.
+
+        // 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));
 
         // 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.
+                // Do nothing if `Cancel` is clicked.  The `Dialog` will automatically close.
             }
         });
 
@@ -134,7 +147,6 @@ public class DownloadFile extends DialogFragment {
             }
         });
 
-
         // Create an `AlertDialog` from the `AlertDialog.Builder`.
         final AlertDialog alertDialog = dialogBuilder.create();
 
@@ -175,7 +187,6 @@ public class DownloadFile extends DialogFragment {
             }
         });
 
-
         // `onCreateDialog` requires the return of an `AlertDialog`.
         return alertDialog;
     }