Upstream Site Settings.

chrome/android/java/src/org/chromium/chrome/browser/preferences/ExpandablePreferenceGroup.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/ExpandablePreferenceGroup.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/ExpandablePreferenceGroup.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/ExpandablePreferenceGroup.java
new file mode 100644
index 0000000000000000000000000000000000000000..3394df1561352d3869ad7df2009d69f23f5656e6
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/ExpandablePreferenceGroup.java
@@ -0,0 +1,78 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.preferences;
+
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+import android.preference.PreferenceGroup;
+import android.text.Spannable;
+import android.text.SpannableStringBuilder;
+import android.text.style.ForegroundColorSpan;
+import android.text.style.StyleSpan;
+import android.text.style.TypefaceSpan;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.ImageView;
+
+import org.chromium.chrome.R;
+
+import java.util.Locale;
+
+/**
+ * A preference category that accepts clicks for toggling on/off.
+ */
+public class ExpandablePreferenceGroup extends PreferenceGroup {
+    private Drawable mDrawable = null;
+    private ImageView mImageView = null;
+
+    public ExpandablePreferenceGroup(Context context, AttributeSet attrs) {
+        super(context, attrs, android.R.attr.preferenceStyle);
+        setWidgetLayoutResource(R.layout.site_list_expandable_header);
+    }
+
+    /**
+     * Set the title for the preference group.
+     * @param resourceId The resource id of the text to use.
+     * @param count The number of entries the preference group contains.
+     */
+    public void setGroupTitle(int resourceId, int count) {
+        SpannableStringBuilder spannable =
+                new SpannableStringBuilder(getContext().getResources().getString(resourceId));
+        String prefCount = String.format(Locale.getDefault(), " - %d", count);
+        spannable.append(prefCount);
+
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+            spannable.setSpan(new StyleSpan(android.graphics.Typeface.BOLD),
+                       0,
+                       spannable.length() - prefCount.length(),
+                       Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+        } else {
+            spannable.setSpan(new TypefaceSpan("sans-serif-medium"),
+                       0,
+                       spannable.length() - prefCount.length(),
+                       Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+        }
+
+        int gray = getContext().getResources().getColor(R.color.expandable_group_dark_gray);
+        spannable.setSpan(new ForegroundColorSpan(gray),
+                   spannable.length() - prefCount.length(),
+                   spannable.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+        setTitle(spannable);
+    }
+
+    @Override
+    public void setIcon(int resourceId) {
+        mDrawable = getContext().getResources().getDrawable(resourceId);
+        if (mImageView != null) mImageView.setImageDrawable(mDrawable);
+    }
+
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+        mImageView = (ImageView) view.findViewById(R.id.expando);
+        if (mDrawable != null) mImageView.setImageDrawable(mDrawable);
+    }
+}