Move all contextual card related classes.

... from homepage to contextualcards.

Test: rebuild
Change-Id: Id7889566ce1e7257eb699d963ae996906fdb58ff

src/com/android/settings/homepage/contextualcards/ContextualCardLookupTable.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2018 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.settings.homepage.contextualcards;
+
+import com.android.settings.homepage.contextualcards.ContextualCard.CardType;
+import com.android.settings.homepage.contextualcards.conditional.ConditionContextualCardController;
+import com.android.settings.homepage.contextualcards.conditional.ConditionContextualCardRenderer;
+import com.android.settings.homepage.contextualcards.slices.SliceContextualCardController;
+import com.android.settings.homepage.contextualcards.slices.SliceContextualCardRenderer;
+
+import java.util.Set;
+import java.util.TreeSet;
+
+public class ContextualCardLookupTable {
+
+    static class ControllerRendererMapping implements Comparable<ControllerRendererMapping> {
+        @CardType
+        private final int mCardType;
+        private final Class<? extends ContextualCardController> mControllerClass;
+        private final Class<? extends ContextualCardRenderer> mRendererClass;
+
+        private ControllerRendererMapping(@CardType int cardType,
+                Class<? extends ContextualCardController> controllerClass,
+                Class<? extends ContextualCardRenderer> rendererClass) {
+            mCardType = cardType;
+            mControllerClass = controllerClass;
+            mRendererClass = rendererClass;
+        }
+
+        @Override
+        public int compareTo(ControllerRendererMapping other) {
+            return Integer.compare(this.mCardType, other.mCardType);
+        }
+    }
+
+    private static final Set<ControllerRendererMapping> LOOKUP_TABLE =
+            new TreeSet<ControllerRendererMapping>() {{
+                add(new ControllerRendererMapping(CardType.CONDITIONAL,
+                        ConditionContextualCardController.class,
+                        ConditionContextualCardRenderer.class));
+                add(new ControllerRendererMapping(CardType.SLICE,
+                        SliceContextualCardController.class,
+                        SliceContextualCardRenderer.class));
+            }};
+
+    public static Class<? extends ContextualCardController> getCardControllerClass(
+            @CardType int cardType) {
+        for (ControllerRendererMapping mapping : LOOKUP_TABLE) {
+            if (mapping.mCardType == cardType) {
+                return mapping.mControllerClass;
+            }
+        }
+        return null;
+    }
+
+    //TODO(b/112578070): Implement multi renderer cases.
+    public static Class<? extends ContextualCardRenderer> getCardRendererClasses(
+            @CardType int cardType) {
+        for (ControllerRendererMapping mapping : LOOKUP_TABLE) {
+            if (mapping.mCardType == cardType) {
+                return mapping.mRendererClass;
+            }
+        }
+        return null;
+    }
+}