Merge "Add TaskInputController for Recents Go" into ub-launcher3-master

go/quickstep/src/com/android/quickstep/TaskAdapter.java

@@ -35,17 +35,23 @@ public final class TaskAdapter extends Adapter<TaskHolder> {
     private static final int MAX_TASKS_TO_DISPLAY = 6;
     private static final String TAG = "TaskAdapter";
     private final TaskListLoader mLoader;
+    private TaskInputController mInputController;
 
     public TaskAdapter(@NonNull TaskListLoader loader) {
         mLoader = loader;
     }
 
+    public void setInputController(TaskInputController inputController) {
+        mInputController = inputController;
+    }
+
     @Override
     public TaskHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        // TODO: Swap in an actual task view here (view w/ icon, label, etc.)
         TaskItemView itemView = (TaskItemView) LayoutInflater.from(parent.getContext())
                 .inflate(R.layout.task_item_view, parent, false);
-        return new TaskHolder(itemView);
+        TaskHolder holder = new TaskHolder(itemView);
+        itemView.setOnClickListener(view -> mInputController.onTaskClicked(holder));
+        return holder;
     }
 
     @Override

go/quickstep/src/com/android/quickstep/TaskHolder.java

@@ -15,6 +15,7 @@
  */
 package com.android.quickstep;
 
+import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView.ViewHolder;
 
 import com.android.quickstep.views.TaskItemView;
@@ -27,6 +28,7 @@ import com.android.systemui.shared.recents.model.Task;
 final class TaskHolder extends ViewHolder {
 
     private final TaskItemView mTaskItemView;
+    private Task mTask;
 
     public TaskHolder(TaskItemView itemView) {
         super(itemView);
@@ -40,7 +42,17 @@ final class TaskHolder extends ViewHolder {
      * @param task the task to bind to the view
      */
     public void bindTask(Task task) {
+        mTask = task;
         mTaskItemView.setLabel(task.titleDescription);
         mTaskItemView.setIcon(task.icon);
     }
+
+    /**
+     * Gets the task currently bound to this view
+     *
+     * @return the current task
+     */
+    public @NonNull Task getTask() {
+        return mTask;
+    }
 }

go/quickstep/src/com/android/quickstep/TaskInputController.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2019 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.quickstep;
+
+import com.android.systemui.shared.system.ActivityManagerWrapper;
+
+/**
+ * Controller responsible for task logic that occurs on various input to the recents view.
+ */
+public final class TaskInputController {
+
+    TaskAdapter mAdapter;
+
+    public TaskInputController(TaskAdapter adapter) {
+        mAdapter = adapter;
+    }
+
+    /**
+     * Logic that occurs when a task view is tapped. Launches the respective task.
+     *
+     * @param viewHolder the task view holder that has been tapped
+     */
+    public void onTaskClicked(TaskHolder viewHolder) {
+        // TODO: Add app launch animation as part of the launch options here.
+        ActivityManagerWrapper.getInstance().startActivityFromRecentsAsync(viewHolder.getTask().key,
+                null /* options */, null /* resultCallback */, null /* resultCallbackHandler */);
+    }
+
+    // TODO: Implement swipe to delete and notify adapter that data has updated
+
+    // TODO: Implement "Clear all" and notify adapter that data has updated
+}

go/quickstep/src/com/android/quickstep/views/IconRecentsView.java

@@ -28,6 +28,7 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import com.android.launcher3.R;
 import com.android.quickstep.TaskAdapter;
+import com.android.quickstep.TaskInputController;
 import com.android.quickstep.TaskListLoader;
 
 /**
@@ -79,6 +80,7 @@ public final class IconRecentsView extends FrameLayout {
     private float mTranslationYFactor;
     private TaskAdapter mTaskAdapter;
     private RecyclerView mTaskRecyclerView;
+    private TaskInputController mTaskInputController;
     private TaskListLoader mTaskLoader;
 
     public IconRecentsView(Context context, AttributeSet attrs) {
@@ -91,6 +93,8 @@ public final class IconRecentsView extends FrameLayout {
         super.onFinishInflate();
         mTaskLoader = new TaskListLoader(mContext);
         mTaskAdapter = new TaskAdapter(mTaskLoader);
+        mTaskInputController = new TaskInputController(mTaskAdapter);
+        mTaskAdapter.setInputController(mTaskInputController);
         mTaskRecyclerView = findViewById(R.id.recent_task_recycler_view);
         mTaskRecyclerView.setAdapter(mTaskAdapter);
         mTaskRecyclerView.setLayoutManager(