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/*
* 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 BrowserSearchpagePreference extends EditTextPreference implements
TextWatcher {
public BrowserSearchpagePreference(Context context, AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
getEditText().addTextChangedListener(this);
}
public BrowserSearchpagePreference(Context context, AttributeSet attrs) {
super(context, attrs);
getEditText().addTextChangedListener(this);
}
public BrowserSearchpagePreference(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 string = s.toString();
int length = string.length();
int first = length > 0 ? string
.indexOf(BrowserActivity.QUERY_PLACE_HOLDER) : -1;
int last = length > 0 ? string
.lastIndexOf(BrowserActivity.QUERY_PLACE_HOLDER) : -1;
dialog.getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(
length == 0 || (first > 0 && first == last));
}
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
}
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