📰 Add a spinner to indicate content is loading

chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/ProgressViewHolder.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/ProgressViewHolder.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/ProgressViewHolder.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/ProgressViewHolder.java
new file mode 100644
index 0000000000000000000000000000000000000000..8510b7b08e7fb2bc0bfc5914767ca2a4ecb8b343
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/ProgressViewHolder.java
@@ -0,0 +1,38 @@
+// Copyright 2016 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.ntp.cards;
+
+import android.view.LayoutInflater;
+
+import org.chromium.chrome.R;
+
+/**
+ * ViewHolder for an item of type {@link NewTabPageListItem#VIEW_TYPE_PROGRESS}.
+ * Adds a {@link ProgressIndicatorView} to the recycler view.
+ */
+public class ProgressViewHolder extends NewTabPageViewHolder {
+    private final ProgressIndicatorView mProgressIndicator;
+    private ProgressListItem mListItem;
+
+    public ProgressViewHolder(final NewTabPageRecyclerView recyclerView) {
+        super(LayoutInflater.from(recyclerView.getContext())
+                        .inflate(R.layout.new_tab_page_progress_indicator, recyclerView, false));
+        mProgressIndicator = (ProgressIndicatorView) itemView.findViewById(R.id.snippets_progress);
+    }
+
+    @Override
+    public void onBindViewHolder(NewTabPageListItem item) {
+        mListItem = (ProgressListItem) item;
+        updateDisplay();
+    }
+
+    public void updateDisplay() {
+        if (mListItem.isVisible()) {
+            mProgressIndicator.showDelayed();
+        } else {
+            mProgressIndicator.hide();
+        }
+    }
+}