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/*
* 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.systemui.plugins;
import android.view.MotionEvent;
import com.android.systemui.plugins.annotations.ProvidesInterface;
/**
* Implement this interface to receive a callback when the user swipes right
* to left on the gesture area. It won't fire if the user has quick switched to a previous app
* (swiped right) and the current app isn't yet the active one (i.e., if swiping left would take
* the user to a more recent app).
*/
@ProvidesInterface(action = com.android.systemui.plugins.OverscrollPlugin.ACTION,
version = com.android.systemui.plugins.OverscrollPlugin.VERSION)
public interface OverscrollPlugin extends Plugin {
String ACTION = "com.android.systemui.action.PLUGIN_LAUNCHER_OVERSCROLL";
int VERSION = 4;
String DEVICE_STATE_LOCKED = "Locked";
String DEVICE_STATE_LAUNCHER = "Launcher";
String DEVICE_STATE_APP = "App";
String DEVICE_STATE_UNKNOWN = "Unknown";
/**
* @return true if the plugin is active and will accept overscroll gestures
*/
boolean isActive();
/**
* Called when a touch has been recognized as an overscroll gesture.
* @param horizontalDistancePx Horizontal distance from the last finger location to the finger
* location when it first touched the screen.
* @param verticalDistancePx Horizontal distance from the last finger location to the finger
* location when it first touched the screen.
* @param thresholdPx Minimum distance for gesture.
* @param flingDistanceThresholdPx Minimum distance for gesture by fling.
* @param flingVelocityThresholdPx Minimum velocity for gesture by fling.
* @param deviceState String representing the current device state
* @param underlyingActivity String representing the currently active Activity
*/
void onTouchEvent(MotionEvent event,
int horizontalDistancePx,
int verticalDistancePx,
int thresholdPx,
int flingDistanceThresholdPx,
int flingVelocityThresholdPx,
String deviceState,
String underlyingActivity);
/**
* @return `true` if overscroll gesture handling should override all other gestures.
*/
boolean blockOtherGestures();
/**
* @return `true` if the overscroll gesture can pan the underlying app.
*/
boolean allowsUnderlyingActivityOverscroll();
}
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