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/*
* 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.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.preference.Preference;
import android.preference.PreferenceManager;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import com.android.browser.R;
public abstract class WebViewPreview extends Preference
implements OnSharedPreferenceChangeListener {
protected WebView mWebView;
public WebViewPreview(
Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context);
}
public WebViewPreview(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public WebViewPreview(Context context) {
super(context);
init(context);
}
protected void init(Context context) {
setLayoutResource(R.layout.webview_preview);
}
protected abstract void updatePreview(boolean forceReload);
protected void setupWebView(WebView view) {}
@Override
protected View onCreateView(ViewGroup parent) {
View root = super.onCreateView(parent);
WebView webView = (WebView) root.findViewById(R.id.webview);
// Tell WebView to really, truly ignore all touch events. No, seriously,
// ignore them all. And don't show scrollbars.
webView.setFocusable(false);
webView.setFocusableInTouchMode(false);
webView.setClickable(false);
webView.setLongClickable(false);
webView.setHorizontalScrollBarEnabled(false);
webView.setVerticalScrollBarEnabled(false);
setupWebView(webView);
return root;
}
@Override
protected void onBindView(View view) {
super.onBindView(view);
mWebView = (WebView) view.findViewById(R.id.webview);
updatePreview(true);
}
@Override
protected void onAttachedToHierarchy(PreferenceManager preferenceManager) {
super.onAttachedToHierarchy(preferenceManager);
getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
}
@Override
protected void onPrepareForRemoval() {
getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
super.onPrepareForRemoval();
}
@Override
public void onSharedPreferenceChanged(
SharedPreferences sharedPreferences, String key) {
updatePreview(false);
}
}
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