1 files changed, 141 insertions, 0 deletions
diff --git a/java/com/android/dialer/speeddial/SpeedDialAdapter.java b/java/com/android/dialer/speeddial/SpeedDialAdapter.java
new file mode 100644
index 000000000..5f7b68e5c
--- /dev/null
+++ b/java/com/android/dialer/speeddial/SpeedDialAdapter.java
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.dialer.speeddial;
+
+import android.content.Context;
+import android.support.annotation.VisibleForTesting;
+import android.support.v7.widget.GridLayoutManager;
+import android.support.v7.widget.GridLayoutManager.SpanSizeLookup;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.RecyclerView.LayoutManager;
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+import com.android.dialer.common.Assert;
+import com.android.dialer.speeddial.FavoritesViewHolder.FavoriteContactsListener;
+import com.android.dialer.speeddial.HeaderViewHolder.SpeedDialHeaderListener;
+import com.android.dialer.speeddial.SpeedDialCursor.RowType;
+import com.android.dialer.speeddial.SuggestionViewHolder.SuggestedContactsListener;
+
+/**
+ * RecyclerView adapter for {@link SpeedDialFragment}.
+ *
+ * <p>Displays a list in the following order:
+ *
+ * <ol>
+ *   <li>Favorite contacts header (with add button)
+ *   <li>Favorite contacts
+ *   <li>Suggested contacts header
+ *   <li>Suggested contacts
+ * </ol>
+ */
+final class SpeedDialAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
+
+  private final Context context;
+  private final FavoriteContactsListener favoritesListener;
+  private final SuggestedContactsListener suggestedListener;
+  private final SpeedDialHeaderListener headerListener;
+
+  private SpeedDialCursor cursor;
+
+  public SpeedDialAdapter(
+      Context context,
+      FavoriteContactsListener favoritesListener,
+      SuggestedContactsListener suggestedListener,
+      SpeedDialHeaderListener headerListener) {
+    this.context = context;
+    this.favoritesListener = favoritesListener;
+    this.suggestedListener = suggestedListener;
+    this.headerListener = headerListener;
+  }
+
+  @Override
+  public int getItemViewType(int position) {
+    return cursor.getRowType(position);
+  }
+
+  @Override
+  public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+    LayoutInflater inflater = LayoutInflater.from(context);
+    if (viewType == RowType.STARRED) {
+      return new FavoritesViewHolder(
+          inflater.inflate(R.layout.favorite_item_layout, parent, false), favoritesListener);
+    } else if (viewType == RowType.SUGGESTION) {
+      return new SuggestionViewHolder(
+          inflater.inflate(R.layout.suggestion_row_layout, parent, false), suggestedListener);
+    } else if (viewType == RowType.HEADER) {
+      return new HeaderViewHolder(
+          inflater.inflate(R.layout.speed_dial_header_layout, parent, false), headerListener);
+    } else {
+      throw Assert.createIllegalStateFailException("Invalid viewType: " + viewType);
+    }
+  }
+
+  @Override
+  public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+    cursor.moveToPosition(position);
+    switch (cursor.getRowType(position)) {
+      case RowType.HEADER:
+        ((HeaderViewHolder) holder).setHeaderText(cursor.getHeader());
+        ((HeaderViewHolder) holder).showAddButton(cursor.hasFavorites() && position == 0);
+        break;
+      case RowType.STARRED:
+        ((FavoritesViewHolder) holder).bind(context, cursor);
+        break;
+      case RowType.SUGGESTION:
+        ((SuggestionViewHolder) holder).bind(context, cursor);
+        break;
+      default:
+        throw Assert.createIllegalStateFailException("Invalid view holder: " + holder);
+    }
+  }
+
+  @Override
+  public int getItemCount() {
+    return cursor == null || cursor.isClosed() ? 0 : cursor.getCount();
+  }
+
+  public void setCursor(SpeedDialCursor cursor) {
+    this.cursor = cursor;
+    notifyDataSetChanged();
+  }
+
+  LayoutManager getLayoutManager(Context context) {
+    GridLayoutManager layoutManager = new GridLayoutManager(context, 3 /* spanCount */);
+    layoutManager.setSpanSizeLookup(
+        new SpanSizeLookup() {
+          @Override
+          public int getSpanSize(int position) {
+            return SpeedDialAdapter.this.getSpanSize(position);
+          }
+        });
+    return layoutManager;
+  }
+
+  @VisibleForTesting
+  int getSpanSize(int position) {
+    switch (cursor.getRowType(position)) {
+      case RowType.SUGGESTION:
+      case RowType.HEADER:
+        return 3; // span the whole screen
+      case RowType.STARRED:
+        return 1; // span 1/3 of the screen
+      default:
+        throw Assert.createIllegalStateFailException(
+            "Invalid row type: " + cursor.getRowType(position));
+    }
+  }
+}