1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.browser.preferences;
18
19import android.content.Context;
20import android.content.res.Resources;
21import android.util.AttributeSet;
22import android.view.View;
23import android.webkit.WebSettings;
24import android.webkit.WebView;
25
26import com.android.browser.BrowserSettings;
27import com.android.browser.R;
28
29public class FontSizePreview extends WebViewPreview {
30
31    static final String HTML_FORMAT = "<!DOCTYPE html><html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"><style type=\"text/css\">p { margin: 2px auto;}</style><body><p style=\"font-size: 4pt\">%s</p><p style=\"font-size: 8pt\">%s</p><p style=\"font-size: 10pt\">%s</p><p style=\"font-size: 14pt\">%s</p><p style=\"font-size: 18pt\">%s</p></body></html>";
32
33    String mHtml;
34
35    public FontSizePreview(
36            Context context, AttributeSet attrs, int defStyle) {
37        super(context, attrs, defStyle);
38    }
39
40    public FontSizePreview(Context context, AttributeSet attrs) {
41        super(context, attrs);
42    }
43
44    public FontSizePreview(Context context) {
45        super(context);
46    }
47
48    @Override
49    protected void init(Context context) {
50        super.init(context);
51        Resources res = context.getResources();
52        Object[] visualNames = res.getStringArray(R.array.pref_text_size_choices);
53        mHtml = String.format(HTML_FORMAT, visualNames);
54    }
55
56    @Override
57    protected void updatePreview(boolean forceReload) {
58        if (mWebView == null) return;
59
60        WebSettings ws = mWebView.getSettings();
61        BrowserSettings bs = BrowserSettings.getInstance();
62        ws.setMinimumFontSize(bs.getMinimumFontSize());
63        ws.setTextZoom(bs.getTextZoom());
64        mWebView.loadDataWithBaseURL(null, mHtml, "text/html", "utf-8", null);
65    }
66
67    @Override
68    protected void setupWebView(WebView view) {
69        super.setupWebView(view);
70        view.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
71    }
72
73}
74