Implement saving a webpage as an image. https://redmine.stoutner.com/issues/187

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

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 2ade1eae173a0b1af977b5bd8c659a895cf96f49..eb2b0ebf827cdbf7678e15529fd131a59667c585 100644 (file)
--- a/app/src/main/java/com/stoutner/privacybrowser/dialogs/DownloadFileDialog.java
+++ b/app/src/main/java/com/stoutner/privacybrowser/dialogs/DownloadFileDialog.java
@@ -24,30 +24,30 @@ 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 com.stoutner.privacybrowser.activities.MainWebViewActivity;
 
 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(AppCompatDialogFragment dialogFragment, String downloadUrl);
+        void onDownloadFile(DialogFragment dialogFragment, String downloadUrl);
     }
 
     @Override
@@ -66,14 +66,17 @@ public class DownloadFileDialog extends AppCompatDialogFragment {
         // Create a variable for the file name string.
         String fileNameString;
 
+        // 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 )) {
+        } 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(contentDisposition.indexOf("filename=") + 9, contentDisposition.indexOf(";", contentDisposition.indexOf("filename=") + 9));
+            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);
+            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();
@@ -113,17 +116,18 @@ public class DownloadFileDialog extends AppCompatDialogFragment {
             fileSize = String.format(Locale.getDefault(), "%.3g", (float) fileSizeLong / 1048576) + " MB";
         }
 
-        // Remove the warning below that `getActivity()` might be null;
-        assert getActivity() != null;
+        // Get a handle for the shared preferences.
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getContext());
 
-        // Get the activity's layout inflater.
-        LayoutInflater layoutInflater = getActivity().getLayoutInflater();
+        // Get the screenshot and theme preferences.
+        boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
+        boolean darkTheme = sharedPreferences.getBoolean("dark_theme", false);
 
         // Use an alert dialog builder to create the alert dialog.
         AlertDialog.Builder dialogBuilder;
 
         // Set the style according to the theme.
-        if (MainWebViewActivity.darkTheme) {
+        if (darkTheme) {
             dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogDark);
         } else {
             dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogLight);
@@ -132,8 +136,18 @@ public class DownloadFileDialog extends AppCompatDialogFragment {
         // 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 listener on the negative button.
         dialogBuilder.setNegativeButton(R.string.cancel, (DialogInterface dialog, int which) -> {
@@ -153,7 +167,7 @@ public class DownloadFileDialog extends AppCompatDialogFragment {
         assert alertDialog.getWindow() != null;
 
         // Disable screenshots if not allowed.
-        if (!MainWebViewActivity.allowScreenshots) {
+        if (!allowScreenshots) {
             alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
         }