Create an "Add to Home Screen" AlertDialog.

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

diff --git a/app/src/main/java/com/stoutner/privacybrowser/CreateHomeScreenShortcut.java b/app/src/main/java/com/stoutner/privacybrowser/CreateHomeScreenShortcut.java
new file mode 100644 (file)
index 0000000..2349fcd
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+++ b/app/src/main/java/com/stoutner/privacybrowser/CreateHomeScreenShortcut.java
@@ -0,0 +1,104 @@
+/**
+ * Copyright Soren Stoutner 2015.
+ */
+
+package com.stoutner.privacybrowser;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v4.app.DialogFragment;
+import android.support.v7.app.AlertDialog;
+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;
+
+public class CreateHomeScreenShortcut extends AppCompatDialogFragment {
+    // The public interface is used to send information back to the activity that called CreateHomeScreenShortcut.
+    public interface CreateHomeScreenSchortcutListener {
+        void onCreateHomeScreenShortcutCancel(DialogFragment dialog);
+
+        void onCreateHomeScreenShortcutCreate(DialogFragment dialog);
+    }
+
+    CreateHomeScreenSchortcutListener buttonListener;
+
+    // Check to make sure that the activity that called CreateHomeScreenShortcut implements both listeners.
+    public void onAttach(Activity activity) {
+        super.onAttach(activity);
+        try {
+            buttonListener = (CreateHomeScreenSchortcutListener) activity;
+        } catch (ClassCastException e) {
+            throw new ClassCastException(activity.toString() + " must implement CreateHomeScreenShortcutListener.");
+        }
+    }
+
+    // onCreateDialog requires @NonNull.
+    @Override
+    @NonNull
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(getActivity());
+        LayoutInflater customDialogInflater = getActivity().getLayoutInflater();
+
+        // Create a drawable version of the favorite icon.
+        Drawable favoriteIconDrawable = new BitmapDrawable(getResources(), Webview.favoriteIcon);
+
+        // Setup dialogBuilder.
+        alertDialogBuilder.setTitle(R.string.shortcut_name);
+        alertDialogBuilder.setIcon(favoriteIconDrawable);
+        alertDialogBuilder.setView(customDialogInflater.inflate(R.layout.create_home_screen_shortcut_dialog, null));
+        alertDialogBuilder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                buttonListener.onCreateHomeScreenShortcutCancel(CreateHomeScreenShortcut.this);
+            }
+        });
+        alertDialogBuilder.setPositiveButton(R.string.create, new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                buttonListener.onCreateHomeScreenShortcutCreate(CreateHomeScreenShortcut.this);
+            }
+        });
+
+        // Assign the resulting built dialog to an AlertDialog.
+        final AlertDialog alertDialog = alertDialogBuilder.create();
+
+        // 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 setOnKeyListener below.
+        alertDialog.show();
+
+        EditText shortcutNameEditText = (EditText) alertDialog.findViewById(R.id.shortcutNameEditText);
+
+        // Allow the "enter" key on the keyboard to create the shortcut.
+        shortcutNameEditText.setOnKeyListener(new View.OnKeyListener() {
+            public boolean onKey(View v, int keyCode, KeyEvent event) {
+                // If the event is a key-down event on the "enter" button, select the PositiveButton "Create".
+                if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
+                    // Trigger the create listener.
+                    buttonListener.onCreateHomeScreenShortcutCreate(CreateHomeScreenShortcut.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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