Add import and export of settings. https://redmine.stoutner.com/issues/23

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

diff --git a/app/src/main/java/com/stoutner/privacybrowser/dialogs/ImportExportStoragePermissionDialog.java b/app/src/main/java/com/stoutner/privacybrowser/dialogs/ImportExportStoragePermissionDialog.java
new file mode 100644 (file)
index 0000000..d5b9390
--- /dev/null
+++ b/app/src/main/java/com/stoutner/privacybrowser/dialogs/ImportExportStoragePermissionDialog.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright © 2018 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.app.AlertDialog;
+import android.app.Dialog;
+import android.app.DialogFragment;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.view.WindowManager;
+
+import com.stoutner.privacybrowser.R;
+import com.stoutner.privacybrowser.activities.MainWebViewActivity;
+
+public class ImportExportStoragePermissionDialog extends DialogFragment {
+    // The constants are used to differentiate between the two commands.
+    public static final int EXPORT_SETTINGS = 1;
+    public static final int IMPORT_SETTINGS = 2;
+
+    // The listener is used in `onAttach()` and `onCreateDialog()`.
+    private ImportExportStoragePermissionDialogListener importExportStoragePermissionDialogListener;
+
+    // The public interface is used to send information back to the parent activity.
+    public interface ImportExportStoragePermissionDialogListener {
+        void onCloseImportExportStoragePermissionDialog(int type);
+    }
+
+    @Override
+    public void onAttach(Context context) {
+        // Run the default commands.
+        super.onAttach(context);
+
+        // Get a handle for the listener from the launching context.
+        importExportStoragePermissionDialogListener = (ImportExportStoragePermissionDialogListener) context;
+    }
+
+    public static ImportExportStoragePermissionDialog type(int type) {
+        // Create an arguments bundle.
+        Bundle argumentsBundle = new Bundle();
+
+        // Store the download type in the bundle.
+        argumentsBundle.putInt("type", type);
+
+        // Add the arguments bundle to this instance of the dialog.
+        ImportExportStoragePermissionDialog thisImportExportStoragePermissionDialog = new ImportExportStoragePermissionDialog();
+        thisImportExportStoragePermissionDialog.setArguments(argumentsBundle);
+        return thisImportExportStoragePermissionDialog;
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        // Store the download type in a local variable.
+        int type = getArguments().getInt("type");
+
+        // Use a builder to create the alert dialog.
+        AlertDialog.Builder dialogBuilder;
+
+        // Set the style and the icon according to the theme.
+        if (MainWebViewActivity.darkTheme) {
+            dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogDark);
+            dialogBuilder.setIcon(R.drawable.import_export_dark);
+        } else {
+            dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogLight);
+            dialogBuilder.setIcon(R.drawable.import_export_light);
+        }
+
+        // Set the title.
+        dialogBuilder.setTitle(R.string.storage_permission);
+
+        // Set the text.
+        dialogBuilder.setMessage(R.string.storage_permission_message);
+
+        // Set an `onClick` listener on the negative button.
+        dialogBuilder.setNegativeButton(R.string.ok, (DialogInterface dialog, int which) -> {
+            // Inform the parent activity that the dialog was closed.
+            importExportStoragePermissionDialogListener.onCloseImportExportStoragePermissionDialog(type);
+        });
+
+        // Create an alert dialog from the builder.
+        final AlertDialog alertDialog = dialogBuilder.create();
+
+        // Disable screenshots if not allowed.
+        if (!MainWebViewActivity.allowScreenshots) {
+            // Remove the warning below that `getWindow()` might be null.
+            assert alertDialog.getWindow() != null;
+
+            // Disable screenshots.
+            alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
+        }
+
+        // `onCreateDialog()` requires the return of an `AlertDialog`.
+        return alertDialog;
+    }
+}