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 */ 34 void onAnimationStart(boolean schedulePipModeChangedCallback, boolean forceUpdate); 35 36 /** 37 * @return Whether the animation should be paused waiting for the windows to draw before 38 * entering PiP. 39 */ 40 boolean shouldDeferStartOnMoveToFullscreen(); 41 42 /** 43 * Sets the size of the target (without any intermediate steps, like scheduling animation) 44 * but freezes the bounds of any tasks in the target at taskBounds, to allow for more 45 * flexibility during resizing. Only works for the pinned stack at the moment. This will 46 * only be called between onAnimationStart() and onAnimationEnd(). 47 * 48 * @return Whether the target should continue to be animated and this call was successful. 49 * If false, the animation will be cancelled because the user has determined that the 50 * animation is now invalid and not required. In such a case, the cancel will trigger the 51 * animation end callback as well, but will not send any further size changes. 52 */ 53 boolean setPinnedStackSize(Rect stackBounds, Rect taskBounds); 54 55 /** 56 * Callback for the target to inform it that the animation has ended, so it can do some 57 * necessary cleanup. 58 * 59 * @param schedulePipModeChangedCallback whether or not to schedule the PiP mode changed 60 * callbacks 61 * @param finalStackSize the final stack bounds to set on the target (can be to indicate that 62 * the animation was cancelled and the target does not need to update to the final stack bounds) 63 * @param moveToFullscreen whether or the target should reparent itself to the fullscreen stack 64 * when the animation completes 65 */ 66 void onAnimationEnd(boolean schedulePipModeChangedCallback, Rect finalStackSize, 67 boolean moveToFullscreen); 68 } 69
