auto import from //depot/cupcake/@135843
diff --git a/src/com/android/browser/BrowserHomepagePreference.java b/src/com/android/browser/BrowserHomepagePreference.java
new file mode 100644
index 0000000..d4708c3
--- /dev/null
+++ b/src/com/android/browser/BrowserHomepagePreference.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.browser;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.preference.EditTextPreference;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.text.util.Regex;
+import android.util.AttributeSet;
+
+public class BrowserHomepagePreference extends EditTextPreference implements
+ TextWatcher {
+
+ public BrowserHomepagePreference(Context context, AttributeSet attrs,
+ int defStyle) {
+ super(context, attrs, defStyle);
+ getEditText().addTextChangedListener(this);
+ }
+
+ public BrowserHomepagePreference(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ getEditText().addTextChangedListener(this);
+ }
+
+ public BrowserHomepagePreference(Context context) {
+ super(context);
+ getEditText().addTextChangedListener(this);
+ }
+
+ public void afterTextChanged(Editable s) {
+ AlertDialog dialog = (AlertDialog) getDialog();
+ // This callback is called before the dialog has been fully constructed
+ if (dialog != null) {
+ String url = s.toString();
+ dialog.getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(
+ url.length() == 0 || url.equals("about:blank") ||
+ Regex.WEB_URL_PATTERN.matcher(url).matches());
+ }
+ }
+
+ public void beforeTextChanged(CharSequence s, int start, int count,
+ int after) {
+ }
+
+ public void onTextChanged(CharSequence s, int start, int before, int count) {
+ }
+}