Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2020 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 | package com.android.systemui.pip.phone; |
| 17 | |
| 18 | import static com.android.internal.config.sysui.SystemUiDeviceConfigFlags.PIP_USER_RESIZE; |
| 19 | import static com.android.internal.policy.TaskResizingAlgorithm.CTRL_BOTTOM; |
| 20 | import static com.android.internal.policy.TaskResizingAlgorithm.CTRL_LEFT; |
| 21 | import static com.android.internal.policy.TaskResizingAlgorithm.CTRL_NONE; |
| 22 | import static com.android.internal.policy.TaskResizingAlgorithm.CTRL_RIGHT; |
| 23 | import static com.android.internal.policy.TaskResizingAlgorithm.CTRL_TOP; |
| 24 | |
| 25 | import android.content.Context; |
| 26 | import android.content.res.Resources; |
| 27 | import android.graphics.Point; |
| 28 | import android.graphics.PointF; |
| 29 | import android.graphics.Rect; |
| 30 | import android.graphics.Region; |
| 31 | import android.hardware.input.InputManager; |
| 32 | import android.os.Looper; |
| 33 | import android.provider.DeviceConfig; |
| 34 | import android.util.DisplayMetrics; |
| 35 | import android.view.InputChannel; |
| 36 | import android.view.InputEvent; |
| 37 | import android.view.InputEventReceiver; |
| 38 | import android.view.InputMonitor; |
| 39 | import android.view.MotionEvent; |
| 40 | |
| 41 | import com.android.internal.policy.TaskResizingAlgorithm; |
| 42 | import com.android.systemui.R; |
| 43 | import com.android.systemui.pip.PipBoundsHandler; |
Ben Lin | 7d6b8e7 | 2020-02-27 17:48:16 -0800 | [diff] [blame] | 44 | import com.android.systemui.pip.PipTaskOrganizer; |
Beverly | 660d0a7 | 2020-02-26 12:32:42 -0500 | [diff] [blame] | 45 | import com.android.systemui.util.DeviceConfigProxy; |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 46 | |
| 47 | import java.util.concurrent.Executor; |
| 48 | |
| 49 | /** |
| 50 | * Helper on top of PipTouchHandler that handles inputs OUTSIDE of the PIP window, which is used to |
| 51 | * trigger dynamic resize. |
| 52 | */ |
| 53 | public class PipResizeGestureHandler { |
| 54 | |
| 55 | private static final String TAG = "PipResizeGestureHandler"; |
| 56 | |
| 57 | private final DisplayMetrics mDisplayMetrics = new DisplayMetrics(); |
| 58 | private final PipBoundsHandler mPipBoundsHandler; |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 59 | private final PipMotionHelper mMotionHelper; |
| 60 | private final int mDisplayId; |
| 61 | private final Executor mMainExecutor; |
| 62 | private final Region mTmpRegion = new Region(); |
| 63 | |
| 64 | private final PointF mDownPoint = new PointF(); |
| 65 | private final Point mMaxSize = new Point(); |
| 66 | private final Point mMinSize = new Point(); |
Ben Lin | 094c775 | 2020-03-11 12:10:51 -0700 | [diff] [blame] | 67 | private final Rect mLastResizeBounds = new Rect(); |
Ben Lin | 75ba9c3 | 2020-03-19 17:55:12 -0700 | [diff] [blame] | 68 | private final Rect mLastDownBounds = new Rect(); |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 69 | private final Rect mTmpBounds = new Rect(); |
| 70 | private final int mDelta; |
| 71 | |
Hongwei Wang | 081ecb3 | 2020-04-13 16:49:03 -0700 | [diff] [blame] | 72 | private boolean mAllowGesture; |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 73 | private boolean mIsAttached; |
| 74 | private boolean mIsEnabled; |
Hongwei Wang | 081ecb3 | 2020-04-13 16:49:03 -0700 | [diff] [blame] | 75 | private boolean mEnableUserResize; |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 76 | |
| 77 | private InputMonitor mInputMonitor; |
| 78 | private InputEventReceiver mInputEventReceiver; |
Ben Lin | 7d6b8e7 | 2020-02-27 17:48:16 -0800 | [diff] [blame] | 79 | private PipTaskOrganizer mPipTaskOrganizer; |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 80 | |
| 81 | private int mCtrlType; |
| 82 | |
| 83 | public PipResizeGestureHandler(Context context, PipBoundsHandler pipBoundsHandler, |
Hongwei Wang | 081ecb3 | 2020-04-13 16:49:03 -0700 | [diff] [blame] | 84 | PipMotionHelper motionHelper, DeviceConfigProxy deviceConfig, |
| 85 | PipTaskOrganizer pipTaskOrganizer) { |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 86 | final Resources res = context.getResources(); |
| 87 | context.getDisplay().getMetrics(mDisplayMetrics); |
| 88 | mDisplayId = context.getDisplayId(); |
| 89 | mMainExecutor = context.getMainExecutor(); |
| 90 | mPipBoundsHandler = pipBoundsHandler; |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 91 | mMotionHelper = motionHelper; |
Ben Lin | 7d6b8e7 | 2020-02-27 17:48:16 -0800 | [diff] [blame] | 92 | mPipTaskOrganizer = pipTaskOrganizer; |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 93 | |
| 94 | context.getDisplay().getRealSize(mMaxSize); |
| 95 | mDelta = res.getDimensionPixelSize(R.dimen.pip_resize_edge_size); |
| 96 | |
Hongwei Wang | 081ecb3 | 2020-04-13 16:49:03 -0700 | [diff] [blame] | 97 | mEnableUserResize = DeviceConfig.getBoolean( |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 98 | DeviceConfig.NAMESPACE_SYSTEMUI, |
| 99 | PIP_USER_RESIZE, |
Ben Lin | 9ee8b13 | 2020-03-19 15:35:21 -0700 | [diff] [blame] | 100 | /* defaultValue = */ true); |
Beverly | 660d0a7 | 2020-02-26 12:32:42 -0500 | [diff] [blame] | 101 | deviceConfig.addOnPropertiesChangedListener(DeviceConfig.NAMESPACE_SYSTEMUI, mMainExecutor, |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 102 | new DeviceConfig.OnPropertiesChangedListener() { |
| 103 | @Override |
| 104 | public void onPropertiesChanged(DeviceConfig.Properties properties) { |
| 105 | if (properties.getKeyset().contains(PIP_USER_RESIZE)) { |
Hongwei Wang | 081ecb3 | 2020-04-13 16:49:03 -0700 | [diff] [blame] | 106 | mEnableUserResize = properties.getBoolean( |
Ben Lin | 9ee8b13 | 2020-03-19 15:35:21 -0700 | [diff] [blame] | 107 | PIP_USER_RESIZE, /* defaultValue = */ true); |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 108 | } |
| 109 | } |
| 110 | }); |
| 111 | } |
| 112 | |
| 113 | private void disposeInputChannel() { |
| 114 | if (mInputEventReceiver != null) { |
| 115 | mInputEventReceiver.dispose(); |
| 116 | mInputEventReceiver = null; |
| 117 | } |
| 118 | if (mInputMonitor != null) { |
| 119 | mInputMonitor.dispose(); |
| 120 | mInputMonitor = null; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | void onActivityPinned() { |
| 125 | mIsAttached = true; |
| 126 | updateIsEnabled(); |
| 127 | } |
| 128 | |
| 129 | void onActivityUnpinned() { |
| 130 | mIsAttached = false; |
| 131 | updateIsEnabled(); |
| 132 | } |
| 133 | |
| 134 | private void updateIsEnabled() { |
Hongwei Wang | 081ecb3 | 2020-04-13 16:49:03 -0700 | [diff] [blame] | 135 | boolean isEnabled = mIsAttached && mEnableUserResize; |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 136 | if (isEnabled == mIsEnabled) { |
| 137 | return; |
| 138 | } |
| 139 | mIsEnabled = isEnabled; |
| 140 | disposeInputChannel(); |
| 141 | |
| 142 | if (mIsEnabled) { |
| 143 | // Register input event receiver |
| 144 | mInputMonitor = InputManager.getInstance().monitorGestureInput( |
| 145 | "pip-resize", mDisplayId); |
| 146 | mInputEventReceiver = new SysUiInputEventReceiver( |
| 147 | mInputMonitor.getInputChannel(), Looper.getMainLooper()); |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | private void onInputEvent(InputEvent ev) { |
| 152 | if (ev instanceof MotionEvent) { |
| 153 | onMotionEvent((MotionEvent) ev); |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | private boolean isWithinTouchRegion(int x, int y) { |
| 158 | final Rect currentPipBounds = mMotionHelper.getBounds(); |
| 159 | if (currentPipBounds == null) { |
| 160 | return false; |
| 161 | } |
| 162 | |
| 163 | mTmpBounds.set(currentPipBounds); |
| 164 | mTmpBounds.inset(-mDelta, -mDelta); |
| 165 | |
| 166 | mTmpRegion.set(mTmpBounds); |
| 167 | mTmpRegion.op(currentPipBounds, Region.Op.DIFFERENCE); |
| 168 | |
| 169 | if (mTmpRegion.contains(x, y)) { |
| 170 | if (x < currentPipBounds.left) { |
| 171 | mCtrlType |= CTRL_LEFT; |
| 172 | } |
| 173 | if (x > currentPipBounds.right) { |
| 174 | mCtrlType |= CTRL_RIGHT; |
| 175 | } |
| 176 | if (y < currentPipBounds.top) { |
| 177 | mCtrlType |= CTRL_TOP; |
| 178 | } |
| 179 | if (y > currentPipBounds.bottom) { |
| 180 | mCtrlType |= CTRL_BOTTOM; |
| 181 | } |
| 182 | return true; |
| 183 | } |
| 184 | return false; |
| 185 | } |
| 186 | |
| 187 | private void onMotionEvent(MotionEvent ev) { |
| 188 | int action = ev.getActionMasked(); |
| 189 | if (action == MotionEvent.ACTION_DOWN) { |
Ben Lin | 094c775 | 2020-03-11 12:10:51 -0700 | [diff] [blame] | 190 | mLastResizeBounds.setEmpty(); |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 191 | mAllowGesture = isWithinTouchRegion((int) ev.getX(), (int) ev.getY()); |
| 192 | if (mAllowGesture) { |
| 193 | mDownPoint.set(ev.getX(), ev.getY()); |
Ben Lin | 75ba9c3 | 2020-03-19 17:55:12 -0700 | [diff] [blame] | 194 | mLastDownBounds.set(mMotionHelper.getBounds()); |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | } else if (mAllowGesture) { |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 198 | switch (action) { |
| 199 | case MotionEvent.ACTION_POINTER_DOWN: |
| 200 | // We do not support multi touch for resizing via drag |
| 201 | mAllowGesture = false; |
| 202 | break; |
| 203 | case MotionEvent.ACTION_MOVE: |
| 204 | // Capture inputs |
| 205 | mInputMonitor.pilferPointers(); |
Ben Lin | 094c775 | 2020-03-11 12:10:51 -0700 | [diff] [blame] | 206 | final Rect currentPipBounds = mMotionHelper.getBounds(); |
| 207 | mLastResizeBounds.set(TaskResizingAlgorithm.resizeDrag(ev.getX(), ev.getY(), |
| 208 | mDownPoint.x, mDownPoint.y, currentPipBounds, mCtrlType, mMinSize.x, |
Ben Lin | d003923 | 2020-03-23 16:05:42 -0700 | [diff] [blame] | 209 | mMinSize.y, mMaxSize, true, |
| 210 | mLastDownBounds.width() > mLastDownBounds.height())); |
Ben Lin | 094c775 | 2020-03-11 12:10:51 -0700 | [diff] [blame] | 211 | mPipBoundsHandler.transformBoundsToAspectRatio(mLastResizeBounds); |
Ben Lin | 75ba9c3 | 2020-03-19 17:55:12 -0700 | [diff] [blame] | 212 | mPipTaskOrganizer.scheduleUserResizePip(mLastDownBounds, mLastResizeBounds, |
| 213 | null); |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 214 | break; |
| 215 | case MotionEvent.ACTION_UP: |
| 216 | case MotionEvent.ACTION_CANCEL: |
Ben Lin | 094c775 | 2020-03-11 12:10:51 -0700 | [diff] [blame] | 217 | mPipTaskOrganizer.scheduleFinishResizePip(mLastResizeBounds); |
Ben Lin | 06dc41f | 2020-03-05 00:39:27 +0000 | [diff] [blame] | 218 | mMotionHelper.synchronizePinnedStackBounds(); |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 219 | mCtrlType = CTRL_NONE; |
| 220 | mAllowGesture = false; |
| 221 | break; |
| 222 | } |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | void updateMaxSize(int maxX, int maxY) { |
| 227 | mMaxSize.set(maxX, maxY); |
| 228 | } |
| 229 | |
Ben Lin | 094c775 | 2020-03-11 12:10:51 -0700 | [diff] [blame] | 230 | void updateMinSize(int minX, int minY) { |
Ben Lin | 04c83f6 | 2019-12-20 10:56:45 -0800 | [diff] [blame] | 231 | mMinSize.set(minX, minY); |
| 232 | } |
| 233 | |
| 234 | class SysUiInputEventReceiver extends InputEventReceiver { |
| 235 | SysUiInputEventReceiver(InputChannel channel, Looper looper) { |
| 236 | super(channel, looper); |
| 237 | } |
| 238 | |
| 239 | public void onInputEvent(InputEvent event) { |
| 240 | PipResizeGestureHandler.this.onInputEvent(event); |
| 241 | finishInputEvent(event, true); |
| 242 | } |
| 243 | } |
| 244 | } |