Bug 839855 - Update tabs from last time favicons to match awesomescreen favicons. r=bnicholson

mobile/android/base/widget/FaviconView.java

@@ -0,0 +1,44 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.widget;
+
+import org.mozilla.gecko.Favicons;
+import org.mozilla.gecko.R;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.util.AttributeSet;
+import android.widget.ImageView;
+
+/*
+ * Special version of ImageView for favicons.
+ * Changes image background depending on favicon size.
+ */
+public class FaviconView extends ImageView {
+
+    public FaviconView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setScaleType(ImageView.ScaleType.CENTER);
+    }
+
+    @Override
+    public void setImageBitmap(Bitmap bitmap) {
+        if (bitmap == null) {
+            // Call setImageDrawable directly to avoid creating a useless BitmapDrawable.
+            setImageDrawable(null);
+            // If the bitmap is null, show a blank background.
+            setBackgroundResource(R.drawable.favicon_bg);
+        } else if (Favicons.getInstance().isLargeFavicon(bitmap)) {
+            super.setImageBitmap(bitmap);
+            // If the icon is large, hide the background.
+            setBackgroundResource(0);
+        } else {
+            super.setImageBitmap(bitmap);
+            // XXX Otherwise show a dominant color background.
+            setBackgroundResource(R.drawable.favicon_bg);
+        }
+    }
+}