| /* |
| * Copyright (C) 2011 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.preferences; |
| |
| import android.content.Context; |
| import android.text.TextUtils; |
| import android.util.AttributeSet; |
| import android.webkit.WebSettingsClassic; |
| import android.webkit.WebViewClassic; |
| |
| import com.android.browser.BrowserSettings; |
| import com.android.browser.WebViewProperties; |
| |
| public class InvertedContrastPreview extends WebViewPreview { |
| |
| static final String IMG_ROOT = "content://com.android.browser.home/res/raw/"; |
| static final String[] THUMBS = new String[] { |
| "thumb_google", |
| "thumb_amazon", |
| "thumb_cnn", |
| "thumb_espn", |
| "", // break |
| "thumb_bbc", |
| "thumb_nytimes", |
| "thumb_weatherchannel", |
| "thumb_picasa", |
| }; |
| |
| String mHtml; |
| |
| public InvertedContrastPreview( |
| Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| } |
| |
| public InvertedContrastPreview(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public InvertedContrastPreview(Context context) { |
| super(context); |
| } |
| |
| @Override |
| protected void init(Context context) { |
| super.init(context); |
| StringBuilder builder = new StringBuilder("<html><body style=\"width: 1000px\">"); |
| for (String thumb : THUMBS) { |
| if (TextUtils.isEmpty(thumb)) { |
| builder.append("<br />"); |
| continue; |
| } |
| builder.append("<img src=\""); |
| builder.append(IMG_ROOT); |
| builder.append(thumb); |
| builder.append("\" /> "); |
| } |
| builder.append("</body></html>"); |
| mHtml = builder.toString(); |
| } |
| |
| @Override |
| protected void updatePreview(boolean forceReload) { |
| if (mWebView == null) return; |
| |
| WebSettingsClassic ws = WebViewClassic.fromWebView(mWebView).getSettings(); |
| BrowserSettings bs = BrowserSettings.getInstance(); |
| ws.setProperty(WebViewProperties.gfxInvertedScreen, |
| bs.useInvertedRendering() ? "true" : "false"); |
| ws.setProperty(WebViewProperties.gfxInvertedScreenContrast, |
| Float.toString(bs.getInvertedContrast())); |
| if (forceReload) { |
| mWebView.loadData(mHtml, "text/html", null); |
| } |
| } |
| |
| } |
