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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.graphics.Point;
import android.view.MotionEvent;
import android.view.WindowManager;
import com.android.systemui.plugins.annotations.ProvidesInterface;
import java.io.PrintWriter;
/** Plugin to handle navigation edge gestures for Back. */
@ProvidesInterface(
action = NavigationEdgeBackPlugin.ACTION,
version = NavigationEdgeBackPlugin.VERSION)
public interface NavigationEdgeBackPlugin extends Plugin {
String ACTION = "com.android.systemui.action.PLUGIN_NAVIGATION_EDGE_BACK_ACTION";
int VERSION = 1;
/** Specifies if the UI should be rendered on the left side of the screen. */
void setIsLeftPanel(boolean isLeftPanel);
/** Sets the insets for the gesture handling area. */
void setInsets(int leftInset, int rightInset);
/** Sets the display size. */
void setDisplaySize(Point displaySize);
/** Sets the callback that should be invoked when a Back gesture is detected. */
void setBackCallback(BackCallback callback);
/** Sets the base LayoutParams for the UI. */
void setLayoutParams(WindowManager.LayoutParams layoutParams);
/** Updates the UI based on the motion events passed in device coordinates. */
void onMotionEvent(MotionEvent motionEvent);
/** Dumps info about the back gesture plugin. */
void dump(PrintWriter pw);
/** Callback to let the system react to the detected back gestures. */
interface BackCallback {
/** Indicates that a Back gesture was recognized and the system should go back. */
void triggerBack();
/** Indicates that the gesture was cancelled and the system should not go back. */
void cancelBack();
}
}
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