1 files changed, 101 insertions, 0 deletions
diff --git a/src/com/android/swe/browser/preferences/WebViewPreview.java b/src/com/android/swe/browser/preferences/WebViewPreview.java
new file mode 100644
index 00000000..1f938f05
--- /dev/null
+++ b/src/com/android/swe/browser/preferences/WebViewPreview.java
@@ -0,0 +1,101 @@
+/*
+ * 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);
+    }
+
+}