1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.wm; 18 19 import android.graphics.Rect; 20 21 /** 22 * The target for a BoundsAnimation. 23 * @see BoundsAnimationController 24 */ 25 interface BoundsAnimationTarget { 26 27 /** 28 * Callback for the target to inform it that the animation has started, so it can do some 29 * necessary preparation. 30 * 31 * @param schedulePipModeChangedCallback whether or not to schedule the PiP mode changed 32 * callbacks 33 */ onAnimationStart(boolean schedulePipModeChangedCallback)34 void onAnimationStart(boolean schedulePipModeChangedCallback); 35 36 /** 37 * Sets the size of the target (without any intermediate steps, like scheduling animation) 38 * but freezes the bounds of any tasks in the target at taskBounds, to allow for more 39 * flexibility during resizing. Only works for the pinned stack at the moment. This will 40 * only be called between onAnimationStart() and onAnimationEnd(). 41 * 42 * @return Whether the target should continue to be animated and this call was successful. 43 * If false, the animation will be cancelled because the user has determined that the 44 * animation is now invalid and not required. In such a case, the cancel will trigger the 45 * animation end callback as well, but will not send any further size changes. 46 */ setPinnedStackSize(Rect stackBounds, Rect taskBounds)47 boolean setPinnedStackSize(Rect stackBounds, Rect taskBounds); 48 49 /** 50 * Callback for the target to inform it that the animation has ended, so it can do some 51 * necessary cleanup. 52 * 53 * @param schedulePipModeChangedCallback whether or not to schedule the PiP mode changed 54 * callbacks 55 * @param finalStackSize the final stack bounds to set on the target (can be to indicate that 56 * the animation was cancelled and the target does not need to update to the final stack bounds) 57 * @param moveToFullscreen whether or the target should reparent itself to the fullscreen stack 58 * when the animation completes 59 */ onAnimationEnd(boolean schedulePipModeChangedCallback, Rect finalStackSize, boolean moveToFullscreen)60 void onAnimationEnd(boolean schedulePipModeChangedCallback, Rect finalStackSize, 61 boolean moveToFullscreen); 62 } 63