Index: chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemGroup.java |
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemGroup.java b/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemGroup.java |
new file mode 100644 |
index 0000000000000000000000000000000000000000..30915c45de0bf3c1dbbd93414f72014d5c71f53f |
--- /dev/null |
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemGroup.java |
@@ -0,0 +1,56 @@ |
+// Copyright 2017 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.download.ui; |
+ |
+import org.chromium.chrome.browser.download.ui.DownloadHistoryAdapter.SubsectionHeader; |
+import org.chromium.chrome.browser.download.ui.DownloadHistoryItemWrapper.OfflinePageItemWrapper; |
+import org.chromium.chrome.browser.widget.DateDividedAdapter; |
+import org.chromium.chrome.browser.widget.DateDividedAdapter.TimedItem; |
+ |
+/** |
+ * A bucket of downloaded items with the same date. It also holds the suggested offline items which |
+ * are shown at the end of the list for that date. |
+ */ |
+public class DownloadItemGroup extends DateDividedAdapter.ItemGroup { |
+ public DownloadItemGroup(long timestamp) { |
+ super(timestamp); |
+ } |
+ |
+ private boolean isSuggestedOfflinePage(TimedItem timedItem) { |
+ if (timedItem instanceof OfflinePageItemWrapper) { |
+ return ((OfflinePageItemWrapper) timedItem).isSuggested(); |
+ } |
+ |
+ return false; |
+ } |
+ |
+ @Override |
+ public int compareItem(TimedItem lhs, TimedItem rhs) { |
+ int lhsOrder = order(lhs); |
+ int rhsOrder = order(rhs); |
+ |
+ if (lhsOrder != rhsOrder) { |
+ return lhsOrder < rhsOrder ? -1 : 1; |
+ } |
+ |
+ return super.compareItem(lhs, rhs); |
+ } |
+ |
+ /** |
+ * A sorting helper function based on the item type. The items in the list view are placed from |
+ * the top in the following order: download items, suggested pages header, suggested pages. |
+ * @param timedItem The item to be displayed. |
+ * @return An integer based on the item type which is to be used for sorting. |
+ */ |
+ private int order(TimedItem timedItem) { |
+ if (isSuggestedOfflinePage(timedItem)) { |
+ return 2; |
+ } else if (timedItem instanceof SubsectionHeader) { |
+ return 1; |
+ } else { |
+ return 0; |
+ } |
+ } |
+} |