| /* |
| * 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(); |
| |
| /** |
| * Indicates if back will be triggered if committed in current state. |
| * |
| * @param triggerBack if back will be triggered in current state. |
| */ |
| void setTriggerBack(boolean triggerBack); |
| } |
| } |