1/*
2 * Copyright (C) 2014 Google Inc.
3 * Licensed to The Android Open Source Project.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18package com.android.mail.text;
19
20import android.text.TextPaint;
21import android.text.style.ClickableSpan;
22import android.view.View;
23
24/**
25 * A span that makes text look like a link. It uses link color and
26 * has no underline but clicking it does nothing.<p/>
27 *
28 * WARNING: this span will not work if the TextView it uses
29 * saves and restores its text since TextView can only save
30 * and restore {@link android.text.ParcelableSpan}s which
31 * can only be implemented by framework Spans.
32 */
33public class LinkStyleSpan extends ClickableSpan {
34
35    /**
36     * The onclick listener invoked when the link is clicked.
37     */
38    final View.OnClickListener mOnClickListener;
39
40    public LinkStyleSpan(View.OnClickListener onClickListener) {
41        mOnClickListener = onClickListener;
42    }
43
44    @Override
45    public void onClick(View widget) {
46        if (mOnClickListener != null) {
47            mOnClickListener.onClick(widget);
48        }
49    }
50
51    /**
52     * Makes the text in the link color and not underlined.
53     */
54    @Override
55    public void updateDrawState(TextPaint ds) {
56        ds.setColor(ds.linkColor);
57        ds.setUnderlineText(false);
58    }
59}
60