SearchTarget/SearchTargetEvent API

Bug: 165869384
Bug: 161599758

TL;DR;;
Also introduce some additional methods for
- all apps start and stop
- metrics logging

Change-Id: I666ff5a27a5f8befdb0db483ebb07344a90e96bc

src_plugins/com/android/systemui/plugins/shared/SearchTarget.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2020 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.systemui.plugins.shared;
+
+import android.content.pm.ShortcutInfo;
+import android.os.Bundle;
+
+import java.util.List;
+
+/**
+ * Used to return all apps search targets.
+ */
+public class SearchTarget implements Comparable<SearchTarget> {
+
+    public enum ViewType {
+        TOP_HIT(0),
+        HERO(1),
+        DETAIL(2),
+        ROW(3),
+        ROW_WITH_BUTTON(4),
+        SLICE(5);
+
+        private final int mId;
+        ViewType(int id) {
+            mId = id;
+        }
+
+        public int get() {
+            return mId;
+        }
+    }
+
+    public enum ItemType {
+        PLAY_RESULTS(0, "Play Store", ViewType.DETAIL),
+        SETTINGS_ROW(1, "Settings", ViewType.ROW),
+        SETTINGS_SLICE(2, "Settings", ViewType.SLICE),
+        APP(3, "", ViewType.TOP_HIT),
+        APP_HERO(4, "", ViewType.HERO);
+
+        private final int mId;
+        private final String mTitle;
+        private final ViewType mViewType;
+
+        ItemType(int id, String title, ViewType type) {
+            mId = id;
+            mTitle = title;
+            mViewType = type;
+        }
+
+        public ViewType getViewType() {
+            return mViewType;
+        }
+
+        public String getTitle() {
+            return mTitle;
+        }
+
+        public int getId() {
+            return mId;
+        }
+    }
+
+    public ItemType type;
+    public List<ShortcutInfo> shortcuts;
+    public Bundle bundle;
+    public float score;
+
+    /**
+     * Constructor to create the search target. Bundle is currently temporary to hold
+     * search target primitives that cannot be expressed as java primitive objects
+     * or AOSP native objects.
+     *
+     */
+    public SearchTarget(ItemType itemType, List<ShortcutInfo> shortcuts,
+            Bundle bundle, float score) {
+        this.type = itemType;
+        this.shortcuts = shortcuts;
+        this.bundle = bundle;
+        this.score = score;
+    }
+
+    @Override
+    public int compareTo(SearchTarget o) {
+        return Float.compare(o.score, score);
+    }
+}