X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FCreateHomeScreenShortcutDialog.java;fp=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FCreateHomeScreenShortcutDialog.java;h=e5722bf8fce479031c25c91f2e54000e3ef0c12a;hp=0000000000000000000000000000000000000000;hb=61a76e491469916f2f30aebb47b98cda7cceb557;hpb=348acd7bd2c9ba9638ff87b34df4e7501214ca27

diff --git a/app/src/main/java/com/stoutner/privacybrowser/dialogs/CreateHomeScreenShortcutDialog.java b/app/src/main/java/com/stoutner/privacybrowser/dialogs/CreateHomeScreenShortcutDialog.java
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+++ b/app/src/main/java/com/stoutner/privacybrowser/dialogs/CreateHomeScreenShortcutDialog.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2015-2017 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.annotation.SuppressLint;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+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.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.EditText;
+
+import com.stoutner.privacybrowser.activities.MainWebViewActivity;
+import com.stoutner.privacybrowser.R;
+
+public class CreateHomeScreenShortcutDialog extends AppCompatDialogFragment {
+    // The public interface is used to send information back to the parent activity.
+    public interface CreateHomeScreenSchortcutListener {
+        void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment);
+    }
+
+    //`createHomeScreenShortcutListener` is used in `onAttach()` and `onCreateDialog()`.
+    private CreateHomeScreenSchortcutListener createHomeScreenShortcutListener;
+
+    // Check to make sure that the parent activity implements the listener.
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        try {
+            createHomeScreenShortcutListener = (CreateHomeScreenSchortcutListener) context;
+        } catch(ClassCastException exception) {
+            throw new ClassCastException(context.toString() + " must implement CreateHomeScreenShortcutListener.");
+        }
+    }
+
+    // `@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();
+
+        // Create a drawable version of the favorite icon.
+        Drawable favoriteIconDrawable = new BitmapDrawable(getResources(), MainWebViewActivity.favoriteIcon);
+
+        // 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.create_shortcut);
+        dialogBuilder.setIcon(favoriteIconDrawable);
+        // The parent view is `null` because it will be assigned by `AlertDialog`.
+        dialogBuilder.setView(layoutInflater.inflate(R.layout.create_home_screen_shortcut_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.create, new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                createHomeScreenShortcutListener.onCreateHomeScreenShortcut(CreateHomeScreenShortcutDialog.this);
+            }
+        });
+
+
+        // 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 the Dialog is displayed on the screen.
+        alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
+
+        // We need to show `alertDialog` before we can call `setOnKeyListener()` below.
+        alertDialog.show();
+
+        // Allow the "enter" key on the keyboard to create the shortcut.
+        EditText shortcutNameEditText = (EditText) alertDialog.findViewById(R.id.shortcut_name_edittext);
+        assert shortcutNameEditText != null;  // Remove the warning below that shortcutNameEditText might be null.
+        shortcutNameEditText.setOnKeyListener(new View.OnKeyListener() {
+            public boolean onKey(View v, int keyCode, KeyEvent event) {
+                // If the event is a key-down on the "enter" button, select the PositiveButton "Create".
+                if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
+                    // Trigger the create listener.
+                    createHomeScreenShortcutListener.onCreateHomeScreenShortcut(CreateHomeScreenShortcutDialog.this);
+
+                    // 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;
+    }
+}
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