| /* |
| * 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.quickstep.inputconsumers; |
| |
| import static android.view.MotionEvent.ACTION_CANCEL; |
| import static android.view.MotionEvent.ACTION_POINTER_DOWN; |
| import static android.view.MotionEvent.ACTION_UP; |
| import static com.android.launcher3.Utilities.squaredHypot; |
| import static com.android.launcher3.Utilities.squaredTouchSlop; |
| import static com.android.quickstep.MultiStateCallback.DEBUG_STATES; |
| import static com.android.quickstep.TouchInteractionService.INTENT_EXTRA_LOG_TRACE_ID; |
| import static com.android.quickstep.TouchInteractionService.startRecentsActivityAsync; |
| import static com.android.quickstep.WindowTransformSwipeHandler.MIN_PROGRESS_FOR_OVERVIEW; |
| |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.graphics.Point; |
| import android.graphics.PointF; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.view.MotionEvent; |
| import android.view.VelocityTracker; |
| import android.view.ViewConfiguration; |
| import android.view.WindowManager; |
| import com.android.launcher3.R; |
| import com.android.launcher3.Utilities; |
| import com.android.quickstep.LockScreenRecentsActivity; |
| import com.android.quickstep.MultiStateCallback; |
| import com.android.quickstep.SwipeSharedState; |
| import com.android.quickstep.util.ClipAnimationHelper; |
| import com.android.quickstep.util.RecentsAnimationListenerSet; |
| import com.android.quickstep.util.SwipeAnimationTargetSet; |
| import com.android.systemui.shared.system.InputMonitorCompat; |
| import com.android.systemui.shared.system.RemoteAnimationTargetCompat; |
| |
| /** |
| * A dummy input consumer used when the device is still locked, e.g. from secure camera. |
| */ |
| public class DeviceLockedInputConsumer implements InputConsumer, |
| SwipeAnimationTargetSet.SwipeAnimationListener { |
| |
| private static final float SCALE_DOWN = 0.75f; |
| |
| private static final String[] STATE_NAMES = DEBUG_STATES ? new String[2] : null; |
| private static int getFlagForIndex(int index, String name) { |
| if (DEBUG_STATES) { |
| STATE_NAMES[index] = name; |
| } |
| return 1 << index; |
| } |
| |
| private static final int STATE_TARGET_RECEIVED = |
| getFlagForIndex(0, "STATE_TARGET_RECEIVED"); |
| private static final int STATE_HANDLER_INVALIDATED = |
| getFlagForIndex(1, "STATE_HANDLER_INVALIDATED"); |
| |
| private final Context mContext; |
| private final float mTouchSlopSquared; |
| private final SwipeSharedState mSwipeSharedState; |
| private final InputMonitorCompat mInputMonitorCompat; |
| |
| private final PointF mTouchDown = new PointF(); |
| private final ClipAnimationHelper mClipAnimationHelper; |
| private int mLogId; |
| private final ClipAnimationHelper.TransformParams mTransformParams; |
| private final Point mDisplaySize; |
| private final MultiStateCallback mStateCallback; |
| private final RectF mSwipeTouchRegion; |
| public final int mRunningTaskId; |
| |
| private VelocityTracker mVelocityTracker; |
| private float mProgress; |
| |
| private boolean mThresholdCrossed = false; |
| |
| private SwipeAnimationTargetSet mTargetSet; |
| |
| public DeviceLockedInputConsumer(Context context, SwipeSharedState swipeSharedState, |
| InputMonitorCompat inputMonitorCompat, RectF swipeTouchRegion, int runningTaskId, |
| int logId) { |
| mContext = context; |
| mTouchSlopSquared = squaredTouchSlop(context); |
| mSwipeSharedState = swipeSharedState; |
| mClipAnimationHelper = new ClipAnimationHelper(context); |
| mLogId = logId; |
| mTransformParams = new ClipAnimationHelper.TransformParams(); |
| mInputMonitorCompat = inputMonitorCompat; |
| mSwipeTouchRegion = swipeTouchRegion; |
| mRunningTaskId = runningTaskId; |
| |
| // Do not use DeviceProfile as the user data might be locked |
| mDisplaySize = new Point(); |
| context.getSystemService(WindowManager.class).getDefaultDisplay().getRealSize(mDisplaySize); |
| |
| // Init states |
| mStateCallback = new MultiStateCallback(STATE_NAMES); |
| mStateCallback.addCallback(STATE_TARGET_RECEIVED | STATE_HANDLER_INVALIDATED, |
| this::endRemoteAnimation); |
| |
| mVelocityTracker = VelocityTracker.obtain(); |
| } |
| |
| @Override |
| public int getType() { |
| return TYPE_DEVICE_LOCKED; |
| } |
| |
| @Override |
| public void onMotionEvent(MotionEvent ev) { |
| if (mVelocityTracker == null) { |
| return; |
| } |
| mVelocityTracker.addMovement(ev); |
| |
| float x = ev.getX(); |
| float y = ev.getY(); |
| switch (ev.getAction()) { |
| case MotionEvent.ACTION_DOWN: |
| mTouchDown.set(x, y); |
| break; |
| case ACTION_POINTER_DOWN: { |
| if (!mThresholdCrossed) { |
| // Cancel interaction in case of multi-touch interaction |
| int ptrIdx = ev.getActionIndex(); |
| if (!mSwipeTouchRegion.contains(ev.getX(ptrIdx), ev.getY(ptrIdx))) { |
| int action = ev.getAction(); |
| ev.setAction(ACTION_CANCEL); |
| finishTouchTracking(ev); |
| ev.setAction(action); |
| } |
| } |
| break; |
| } |
| case MotionEvent.ACTION_MOVE: { |
| if (!mThresholdCrossed) { |
| if (squaredHypot(x - mTouchDown.x, y - mTouchDown.y) > mTouchSlopSquared) { |
| startRecentsTransition(); |
| } |
| } else { |
| float dy = Math.max(mTouchDown.y - y, 0); |
| mProgress = dy / mDisplaySize.y; |
| mTransformParams.setProgress(mProgress); |
| if (mTargetSet != null) { |
| mClipAnimationHelper.applyTransform(mTargetSet, mTransformParams); |
| } |
| } |
| break; |
| } |
| case MotionEvent.ACTION_CANCEL: |
| case MotionEvent.ACTION_UP: |
| finishTouchTracking(ev); |
| break; |
| } |
| } |
| |
| /** |
| * Called when the gesture has ended. Does not correlate to the completion of the interaction as |
| * the animation can still be running. |
| */ |
| private void finishTouchTracking(MotionEvent ev) { |
| mStateCallback.setState(STATE_HANDLER_INVALIDATED); |
| if (mThresholdCrossed && ev.getAction() == ACTION_UP) { |
| mVelocityTracker.computeCurrentVelocity(1000, |
| ViewConfiguration.get(mContext).getScaledMaximumFlingVelocity()); |
| |
| float velocityY = mVelocityTracker.getYVelocity(); |
| float flingThreshold = mContext.getResources() |
| .getDimension(R.dimen.quickstep_fling_threshold_velocity); |
| |
| boolean dismissTask; |
| if (Math.abs(velocityY) > flingThreshold) { |
| // Is fling |
| dismissTask = velocityY < 0; |
| } else { |
| dismissTask = mProgress >= (1 - MIN_PROGRESS_FOR_OVERVIEW); |
| } |
| if (dismissTask) { |
| // For now, just start the home intent so user is prompted to unlock the device. |
| mContext.startActivity(new Intent(Intent.ACTION_MAIN) |
| .addCategory(Intent.CATEGORY_HOME) |
| .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK)); |
| } |
| } |
| mVelocityTracker.recycle(); |
| mVelocityTracker = null; |
| } |
| |
| private void startRecentsTransition() { |
| mThresholdCrossed = true; |
| RecentsAnimationListenerSet newListenerSet = |
| mSwipeSharedState.newRecentsAnimationListenerSet(); |
| newListenerSet.addListener(this); |
| Intent intent = new Intent(Intent.ACTION_MAIN) |
| .addCategory(Intent.CATEGORY_DEFAULT) |
| .setComponent(new ComponentName(mContext, LockScreenRecentsActivity.class)) |
| .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK) |
| .putExtra(INTENT_EXTRA_LOG_TRACE_ID, mLogId); |
| |
| mInputMonitorCompat.pilferPointers(); |
| startRecentsActivityAsync(intent, newListenerSet); |
| } |
| |
| @Override |
| public void onRecentsAnimationStart(SwipeAnimationTargetSet targetSet) { |
| mTargetSet = targetSet; |
| |
| Rect displaySize = new Rect(0, 0, mDisplaySize.x, mDisplaySize.y); |
| RemoteAnimationTargetCompat targetCompat = targetSet.findTask(mRunningTaskId); |
| if (targetCompat != null) { |
| mClipAnimationHelper.updateSource(displaySize, targetCompat); |
| } |
| |
| Utilities.scaleRectAboutCenter(displaySize, SCALE_DOWN); |
| displaySize.offsetTo(displaySize.left, 0); |
| mClipAnimationHelper.updateTargetRect(displaySize); |
| mClipAnimationHelper.applyTransform(mTargetSet, mTransformParams); |
| |
| mStateCallback.setState(STATE_TARGET_RECEIVED); |
| } |
| |
| @Override |
| public void onRecentsAnimationCanceled() { |
| mTargetSet = null; |
| } |
| |
| private void endRemoteAnimation() { |
| if (mTargetSet != null) { |
| mTargetSet.finishController( |
| false /* toRecents */, null /* callback */, false /* sendUserLeaveHint */); |
| } |
| } |
| |
| @Override |
| public void onConsumerAboutToBeSwitched() { |
| mStateCallback.setState(STATE_HANDLER_INVALIDATED); |
| } |
| |
| @Override |
| public boolean allowInterceptByParent() { |
| return !mThresholdCrossed; |
| } |
| } |