📰 Move metrics and scheduling events out of SnippetsBridge

chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsEventReporterBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsEventReporterBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsEventReporterBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsEventReporterBridge.java
new file mode 100644
index 0000000000000000000000000000000000000000..e16dded73493103039a3533abcc157b57ad073c1
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsEventReporterBridge.java
@@ -0,0 +1,104 @@
+// 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.suggestions;
+
+import org.chromium.chrome.browser.ntp.NewTabPageUma;
+import org.chromium.chrome.browser.ntp.cards.ActionItem;
+import org.chromium.chrome.browser.ntp.snippets.CategoryInt;
+import org.chromium.chrome.browser.ntp.snippets.KnownCategories;
+import org.chromium.chrome.browser.ntp.snippets.SnippetArticle;
+
+/**
+ * Exposes methods to report suggestions related events, for UMA or Fetch scheduling purposes.
+ */
+public class SuggestionsEventReporterBridge implements SuggestionsEventReporter {
+    @Override
+    public void onSurfaceOpened() {
+        nativeOnSurfaceOpened();
+    }
+
+    @Override
+    public void onPageShown(int[] categories, int[] suggestionsPerCategory) {
+        nativeOnPageShown(categories, suggestionsPerCategory);
+    }
+
+    @Override
+    public void onSuggestionShown(SnippetArticle suggestion) {
+        nativeOnSuggestionShown(suggestion.getGlobalRank(), suggestion.mCategory,
+                suggestion.getPerSectionRank(), suggestion.mPublishTimestampMilliseconds,
+                suggestion.mScore, suggestion.mFetchTimestampMilliseconds);
+    }
+
+    @Override
+    public void onSuggestionOpened(SnippetArticle suggestion, int windowOpenDisposition,
+            SuggestionsRanker suggestionsRanker) {
+        int categoryIndex = suggestionsRanker.getCategoryRank(suggestion.mCategory);
+        nativeOnSuggestionOpened(suggestion.getGlobalRank(), suggestion.mCategory, categoryIndex,
+                suggestion.getPerSectionRank(), suggestion.mPublishTimestampMilliseconds,
+                suggestion.mScore, windowOpenDisposition);
+    }
+
+    @Override
+    public void onSuggestionMenuOpened(SnippetArticle suggestion) {
+        nativeOnSuggestionMenuOpened(suggestion.getGlobalRank(), suggestion.mCategory,
+                suggestion.getPerSectionRank(), suggestion.mPublishTimestampMilliseconds,
+                suggestion.mScore);
+    }
+    @Override
+    public void onMoreButtonShown(ActionItem actionItem) {
+        nativeOnMoreButtonShown(actionItem.getCategory(), actionItem.getPerSectionRank());
+    }
+
+    @Override
+    public void onMoreButtonClicked(ActionItem actionItem) {
+        @CategoryInt
+        int category = actionItem.getCategory();
+        nativeOnMoreButtonClicked(category, actionItem.getPerSectionRank());
+        switch (category) {
+            case KnownCategories.BOOKMARKS:
+                NewTabPageUma.recordAction(NewTabPageUma.ACTION_OPENED_BOOKMARKS_MANAGER);
+                break;
+            // MORE button in both categories leads to the recent tabs manager
+            case KnownCategories.FOREIGN_TABS:
+            case KnownCategories.RECENT_TABS:
+                NewTabPageUma.recordAction(NewTabPageUma.ACTION_OPENED_RECENT_TABS_MANAGER);
+                break;
+            case KnownCategories.DOWNLOADS:
+                NewTabPageUma.recordAction(NewTabPageUma.ACTION_OPENED_DOWNLOADS_MANAGER);
+                break;
+            default:
+                // No action associated
+                break;
+        }
+    }
+
+    public static void onSuggestionTargetVisited(int category, long visitTimeMs) {
+        nativeOnSuggestionTargetVisited(category, visitTimeMs);
+    }
+
+    public static void onActivityWarmResumed() {
+        nativeOnActivityWarmResumed();
+    }
+
+    public static void onColdStart() {
+        nativeOnColdStart();
+    }
+
+    private static native void nativeOnPageShown(int[] categories, int[] suggestionsPerCategory);
+    private static native void nativeOnSuggestionShown(int globalPosition, int category,
+            int positionInCategory, long publishTimestampMs, float score, long fetchTimestampMs);
+    private static native void nativeOnSuggestionOpened(int globalPosition, int category,
+            int categoryIndex, int positionInCategory, long publishTimestampMs, float score,
+            int windowOpenDisposition);
+    private static native void nativeOnSuggestionMenuOpened(int globalPosition, int category,
+            int positionInCategory, long publishTimestampMs, float score);
+    private static native void nativeOnMoreButtonShown(int category, int position);
+    private static native void nativeOnMoreButtonClicked(int category, int position);
+    private static native void nativeOnSurfaceOpened();
+
+    private static native void nativeOnActivityWarmResumed();
+    private static native void nativeOnColdStart();
+    private static native void nativeOnSuggestionTargetVisited(int category, long visitTimeMs);
+}