lawnchair/src/com/android/launcher3/logging/StatsLogManager.java

/*
 * 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.launcher3.logging;

import android.content.Context;

import com.android.launcher3.R;
import com.android.launcher3.logger.LauncherAtom.ItemInfo;
import com.android.launcher3.logging.StatsLogUtils.LogStateProvider;
import com.android.launcher3.util.ResourceBasedOverride;

/**
 * Handles the user event logging in R+.
 * All of the event ids are defined here.
 * Most of the methods are dummy methods for Launcher3
 * Actual call happens only for Launcher variant that implements QuickStep.
 */
public class StatsLogManager implements ResourceBasedOverride {

    interface EventEnum {
        int getId();
    }

    public enum LauncherEvent implements EventEnum {
        @UiEvent(doc = "App launched from workspace, hotseat or folder in launcher")
        LAUNCHER_APP_LAUNCH_TAP(338),

        @UiEvent(doc = "Task launched from overview using TAP")
        LAUNCHER_TASK_LAUNCH_TAP(339),

        @UiEvent(doc = "Task launched from overview using SWIPE DOWN")
        LAUNCHER_TASK_LAUNCH_SWIPE_DOWN(340),

        @UiEvent(doc = "TASK dismissed from overview using SWIPE UP")
        LAUNCHER_TASK_DISMISS_SWIPE_UP(341),

        @UiEvent(doc = "User dragged a launcher item")
        LAUNCHER_ITEM_DRAG_STARTED(383),

        @UiEvent(doc = "A dragged launcher item is successfully dropped")
        LAUNCHER_ITEM_DROP_COMPLETED(385),

        @UiEvent(doc = "A dragged launcher item is successfully dropped on another item "
                + "resulting in a new folder creation")
        LAUNCHER_ITEM_DROP_FOLDER_CREATED(386),

        @UiEvent(doc = "User action resulted in or manually updated the folder label to "
                + "new/same value.")
        LAUNCHER_FOLDER_LABEL_UPDATED(460),

        @UiEvent(doc = "A dragged item is dropped on 'Remove' button in the target bar")
        LAUNCHER_ITEM_DROPPED_ON_REMOVE(465),

        @UiEvent(doc = "A dragged item is dropped on 'Cancel' button in the target bar")
        LAUNCHER_ITEM_DROPPED_ON_CANCEL(466),

        @UiEvent(doc = "A predicted item is dragged and dropped on 'Don't suggest app'"
                + " button in the target bar")
        LAUNCHER_ITEM_DROPPED_ON_DONT_SUGGEST(467),

        @UiEvent(doc = "A dragged item is dropped on 'Uninstall' button in target bar")
        LAUNCHER_ITEM_DROPPED_ON_UNINSTALL(468),

        @UiEvent(doc = "User completed uninstalling the package after dropping on "
                + "the icon onto 'Uninstall' button in the target bar")
        LAUNCHER_ITEM_UNINSTALL_COMPLETED(469),

        @UiEvent(doc = "User cancelled uninstalling the package after dropping on "
                + "the icon onto 'Uninstall' button in the target bar")
        LAUNCHER_ITEM_UNINSTALL_CANCELLED(470);
        // ADD MORE

        private final int mId;

        LauncherEvent(int id) {
            mId = id;
        }

        public int getId() {
            return mId;
        }
    }

    protected LogStateProvider mStateProvider;

    /**
     * Creates a new instance of {@link StatsLogManager} based on provided context.
     */
    public static StatsLogManager newInstance(Context context) {
        return newInstance(context, null);
    }

    public static StatsLogManager newInstance(Context context, LogStateProvider stateProvider) {
        StatsLogManager mgr = Overrides.getObject(StatsLogManager.class,
                context.getApplicationContext(), R.string.stats_log_manager_class);
        mgr.mStateProvider = stateProvider;
        return mgr;
    }

    /**
     * Logs a {@link LauncherEvent}.
     */
    public void log(LauncherEvent event) {
    }

    /**
     * Logs an event and accompanying {@link InstanceId}.
     */
    public void log(LauncherEvent event, InstanceId instanceId) {
    }

    /**
     * Logs an event and accompanying {@link ItemInfo}.
     */
    public void log(LauncherEvent event, ItemInfo itemInfo) {
    }

    /**
     * Logs an event and accompanying {@link InstanceId} and {@link ItemInfo}.
     */
    public void log(LauncherEvent event, InstanceId instanceId, ItemInfo itemInfo) {
    }

    /**
     * Logs snapshot, or impression of the current workspace.
     */
    public void logSnapshot() {
    }
}