Disable header for the Most Visited Tiles.

This change allows BaseCarouselSuggestion to show or hide the
header text depending on whether it is desired to show it.

Bug: 1166302, 1145685
Change-Id: If91da47ab1f121837d6c263dc6d217f2b4452b8f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2634015
Commit-Queue: Tomasz Wiszkowski <ender@google.com>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Reviewed-by: Filip Gorski <fgorski@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844337}

chrome/android/java/res/values/dimens.xml

@@ -251,6 +251,7 @@
     <dimen name="omnibox_suggestion_compact_padding">6dp</dimen>
     <dimen name="omnibox_suggestion_list_padding_bottom">8dp</dimen>
     <dimen name="omnibox_suggestion_start_offset_without_icon">18dp</dimen>
+    <dimen name="omnibox_carousel_suggestion_padding">12dp</dimen>
 
     <dimen name="omnibox_suggestion_36dp_icon_size">36dp</dimen>
     <dimen name="omnibox_suggestion_24dp_icon_size">24dp</dimen>

chrome/android/java/src/org/chromium/chrome/browser/omnibox/suggestions/carousel/BaseCarouselSuggestionView.java

@@ -38,9 +38,9 @@ public class BaseCarouselSuggestionView extends LinearLayout {
         setClickable(false);
         setFocusable(false);
         setOrientation(VERTICAL);
-        final int verticalPad = getResources().getDimensionPixelSize(
-                R.dimen.omnibox_suggestion_semicompact_padding);
-        setPaddingRelative(0, 0, 0, verticalPad);
+        final int verticalPad =
+                getResources().getDimensionPixelSize(R.dimen.omnibox_carousel_suggestion_padding);
+        setPaddingRelative(0, verticalPad, 0, verticalPad);
 
         mHeader = new HeaderView(context);
         mHeader.setLayoutParams(
@@ -48,6 +48,7 @@ public class BaseCarouselSuggestionView extends LinearLayout {
         mHeader.getIconView().setVisibility(GONE);
         mHeader.setClickable(false);
         mHeader.setFocusable(false);
+        mHeader.setVisibility(View.GONE);
         addView(mHeader);
 
         mRecyclerView = new RecyclerView(context);
@@ -108,6 +109,11 @@ public class BaseCarouselSuggestionView extends LinearLayout {
         return mHeader.getTextView();
     }
 
+    /** @return Header element. */
+    View getHeaderView() {
+        return mHeader;
+    }
+
     /** @return Adapter used with the embedded RecyclerView. */
     SimpleRecyclerViewAdapter getAdapter() {
         return (SimpleRecyclerViewAdapter) mRecyclerView.getAdapter();

chrome/android/java/src/org/chromium/chrome/browser/omnibox/suggestions/carousel/BaseCarouselSuggestionViewBinder.java

@@ -4,6 +4,9 @@
 
 package org.chromium.chrome.browser.omnibox.suggestions.carousel;
 
+import android.view.View;
+
+import org.chromium.chrome.R;
 import org.chromium.ui.modelutil.MVCListAdapter.ListItem;
 import org.chromium.ui.modelutil.PropertyKey;
 import org.chromium.ui.modelutil.PropertyModel;
@@ -28,6 +31,18 @@ public final class BaseCarouselSuggestionViewBinder {
             }
         } else if (key == BaseCarouselSuggestionViewProperties.TITLE) {
             view.getHeaderTextView().setText(model.get(BaseCarouselSuggestionViewProperties.TITLE));
+        } else if (key == BaseCarouselSuggestionViewProperties.SHOW_TITLE) {
+            final boolean showTitle = model.get(BaseCarouselSuggestionViewProperties.SHOW_TITLE);
+            final View headerView = view.getHeaderView();
+            final int verticalPad = view.getResources().getDimensionPixelSize(
+                    R.dimen.omnibox_carousel_suggestion_padding);
+            if (showTitle) {
+                headerView.setVisibility(View.VISIBLE);
+                view.setPaddingRelative(0, 0, 0, verticalPad);
+            } else {
+                headerView.setVisibility(View.GONE);
+                view.setPaddingRelative(0, verticalPad, 0, verticalPad);
+            }
         }
     }
 }

chrome/android/java/src/org/chromium/chrome/browser/omnibox/suggestions/carousel/BaseCarouselSuggestionViewProperties.java

@@ -8,6 +8,7 @@ import org.chromium.chrome.browser.omnibox.suggestions.SuggestionCommonPropertie
 import org.chromium.ui.modelutil.MVCListAdapter.ListItem;
 import org.chromium.ui.modelutil.PropertyKey;
 import org.chromium.ui.modelutil.PropertyModel;
+import org.chromium.ui.modelutil.PropertyModel.WritableBooleanPropertyKey;
 import org.chromium.ui.modelutil.PropertyModel.WritableObjectPropertyKey;
 
 import java.util.Collection;
@@ -22,7 +23,11 @@ public class BaseCarouselSuggestionViewProperties {
     public static final WritableObjectPropertyKey<CharSequence> TITLE =
             new WritableObjectPropertyKey<>();
 
-    public static final PropertyKey[] ALL_UNIQUE_KEYS = new PropertyKey[] {TITLE, TILES};
+    /** Controls whether the Header should be shown. */
+    public static final WritableBooleanPropertyKey SHOW_TITLE = new WritableBooleanPropertyKey();
+
+    public static final PropertyKey[] ALL_UNIQUE_KEYS =
+            new PropertyKey[] {TITLE, SHOW_TITLE, TILES};
 
     public static final PropertyKey[] ALL_KEYS =
             PropertyModel.concatKeys(ALL_UNIQUE_KEYS, SuggestionCommonProperties.ALL_KEYS);

chrome/android/java/src/org/chromium/chrome/browser/omnibox/suggestions/mostvisited/MostVisitedTilesProcessor.java

@@ -142,8 +142,7 @@ public class MostVisitedTilesProcessor extends BaseCarouselSuggestionProcessor {
         }
 
         model.set(BaseCarouselSuggestionViewProperties.TILES, tileList);
-        model.set(BaseCarouselSuggestionViewProperties.TITLE,
-                mContext.getResources().getString(R.string.most_visited_tiles_header));
+        model.set(BaseCarouselSuggestionViewProperties.SHOW_TITLE, false);
     }
 
     /**

chrome/android/junit/src/org/chromium/chrome/browser/omnibox/suggestions/carousel/BaseCarouselSuggestionViewBinderUnitTest.java

@@ -4,6 +4,7 @@
 
 package org.chromium.chrome.browser.omnibox.suggestions.carousel;
 
+import static org.mockito.Mockito.anyInt;
 import static org.mockito.Mockito.eq;
 import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.times;
@@ -11,6 +12,7 @@ import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoMoreInteractions;
 import static org.mockito.Mockito.when;
 
+import android.content.res.Resources;
 import android.view.View;
 import android.widget.TextView;
 
@@ -22,6 +24,7 @@ import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.robolectric.annotation.Config;
 
+import org.chromium.chrome.R;
 import org.chromium.testing.local.LocalRobolectricTestRunner;
 import org.chromium.ui.modelutil.MVCListAdapter.ListItem;
 import org.chromium.ui.modelutil.MVCListAdapter.ModelList;
@@ -38,18 +41,26 @@ import java.util.List;
 @RunWith(LocalRobolectricTestRunner.class)
 @Config(manifest = Config.NONE)
 public class BaseCarouselSuggestionViewBinderUnitTest {
+    static final int SUGGESTION_VERTICAL_PADDING = 123;
+
     @Mock
     BaseCarouselSuggestionView mView;
 
     @Mock
     TextView mHeaderTextView;
 
+    @Mock
+    View mHeaderView;
+
     @Mock
     View mItemView;
 
     @Mock
     SimpleRecyclerViewAdapter mAdapter;
 
+    @Mock
+    Resources mResources;
+
     ModelList mTiles;
 
     PropertyModel mModel;
@@ -63,8 +74,13 @@ public class BaseCarouselSuggestionViewBinderUnitTest {
         mTiles = new ModelList();
 
         when(mView.getHeaderTextView()).thenReturn(mHeaderTextView);
+        when(mView.getHeaderView()).thenReturn(mHeaderView);
         when(mView.getAdapter()).thenReturn(mAdapter);
         when(mAdapter.getModelList()).thenReturn(mTiles);
+        when(mView.getResources()).thenReturn(mResources);
+
+        when(mResources.getDimensionPixelSize(eq(R.dimen.omnibox_carousel_suggestion_padding)))
+                .thenReturn(SUGGESTION_VERTICAL_PADDING);
     }
 
     @Test
@@ -110,4 +126,22 @@ public class BaseCarouselSuggestionViewBinderUnitTest {
         mModel.set(BaseCarouselSuggestionViewProperties.TILES, null);
         Assert.assertEquals(0, mTiles.size());
     }
+
+    @Test
+    public void headerTitle_visibilityChangeAltersTopPadding() {
+        mModel.set(BaseCarouselSuggestionViewProperties.SHOW_TITLE, true);
+        verify(mHeaderView, times(1)).setVisibility(eq(View.VISIBLE));
+        verify(mHeaderView, times(1)).setVisibility(anyInt());
+        verify(mView, times(1))
+                .setPaddingRelative(eq(0), eq(0), eq(0), eq(SUGGESTION_VERTICAL_PADDING));
+        verify(mView, times(1)).setPaddingRelative(anyInt(), anyInt(), anyInt(), anyInt());
+
+        mModel.set(BaseCarouselSuggestionViewProperties.SHOW_TITLE, false);
+        verify(mHeaderView, times(1)).setVisibility(eq(View.GONE));
+        verify(mHeaderView, times(2)).setVisibility(anyInt());
+        verify(mView, times(1))
+                .setPaddingRelative(eq(0), eq(SUGGESTION_VERTICAL_PADDING), eq(0),
+                        eq(SUGGESTION_VERTICAL_PADDING));
+        verify(mView, times(2)).setPaddingRelative(anyInt(), anyInt(), anyInt(), anyInt());
+    }
 }