From 35062f8ed32ea4a868be077fdae37409a700e759 Mon Sep 17 00:00:00 2001 From: Hyunyoung Song Date: Fri, 21 Jun 2019 23:24:02 -0700 Subject: Enable FLAG_SLIPPERY window flag when swipe down on workspace Bug: 131356741 Test: manual Change-Id: Ibe0e3a03e7406d5d882a1c63265d6e4e0253983e --- .../touchcontrollers/StatusBarTouchController.java | 68 ++++++++++++++++------ 1 file changed, 51 insertions(+), 17 deletions(-) (limited to 'quickstep/src') diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java index fee18204e..f5ba3725d 100644 --- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java +++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java @@ -17,17 +17,22 @@ package com.android.launcher3.uioverrides.touchcontrollers; import static android.view.MotionEvent.ACTION_DOWN; import static android.view.MotionEvent.ACTION_MOVE; +import static android.view.MotionEvent.ACTION_UP; +import static android.view.MotionEvent.ACTION_CANCEL; +import android.graphics.PointF; import android.os.RemoteException; import android.util.Log; +import android.util.SparseArray; import android.view.MotionEvent; import android.view.ViewConfiguration; +import android.view.Window; +import android.view.WindowManager; import com.android.launcher3.AbstractFloatingView; import com.android.launcher3.DeviceProfile; import com.android.launcher3.Launcher; import com.android.launcher3.LauncherState; -import com.android.launcher3.touch.TouchEventTranslator; import com.android.launcher3.util.TouchController; import com.android.quickstep.RecentsModel; import com.android.systemui.shared.recents.ISystemUiProxy; @@ -36,18 +41,29 @@ import java.io.PrintWriter; /** * TouchController for handling touch events that get sent to the StatusBar. Once the - * Once the event delta y passes the touch slop, the events start getting forwarded. + * Once the event delta mDownY passes the touch slop, the events start getting forwarded. * All events are offset by initial Y value of the pointer. */ public class StatusBarTouchController implements TouchController { private static final String TAG = "StatusBarController"; + /** + * Window flag: Enable touches to slide out of a window into neighboring + * windows in mid-gesture instead of being captured for the duration of + * the gesture. + * + * This flag changes the behavior of touch focus for this window only. + * Touches can slide out of the window but they cannot necessarily slide + * back in (unless the other window with touch focus permits it). + */ + private static final int FLAG_SLIPPERY = 0x20000000; + protected final Launcher mLauncher; - protected final TouchEventTranslator mTranslator; private final float mTouchSlop; private ISystemUiProxy mSysUiProxy; private int mLastAction; + private final SparseArray mDownEvents; /* If {@code false}, this controller should not handle the input {@link MotionEvent}.*/ private boolean mCanIntercept; @@ -56,7 +72,7 @@ public class StatusBarTouchController implements TouchController { mLauncher = l; // Guard against TAPs by increasing the touch slop. mTouchSlop = 2 * ViewConfiguration.get(l).getScaledTouchSlop(); - mTranslator = new TouchEventTranslator((MotionEvent ev)-> dispatchTouchEvent(ev)); + mDownEvents = new SparseArray<>(); } @Override @@ -64,7 +80,6 @@ public class StatusBarTouchController implements TouchController { writer.println(prefix + "mCanIntercept:" + mCanIntercept); writer.println(prefix + "mLastAction:" + MotionEvent.actionToString(mLastAction)); writer.println(prefix + "mSysUiProxy available:" + (mSysUiProxy != null)); - } private void dispatchTouchEvent(MotionEvent ev) { @@ -81,26 +96,31 @@ public class StatusBarTouchController implements TouchController { @Override public final boolean onControllerInterceptTouchEvent(MotionEvent ev) { int action = ev.getActionMasked(); + int idx = ev.getActionIndex(); + int pid = ev.getPointerId(idx); if (action == ACTION_DOWN) { mCanIntercept = canInterceptTouch(ev); if (!mCanIntercept) { return false; } - mTranslator.reset(); - mTranslator.setDownParameters(0, ev); + mDownEvents.put(pid, new PointF(ev.getX(), ev.getY())); } else if (ev.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN) { - // Check!! should only set it only when threshold is not entered. - mTranslator.setDownParameters(ev.getActionIndex(), ev); + // Check!! should only set it only when threshold is not entered. + mDownEvents.put(pid, new PointF(ev.getX(idx), ev.getY(idx))); } if (!mCanIntercept) { return false; } if (action == ACTION_MOVE) { - float dy = ev.getY() - mTranslator.getDownY(); - float dx = ev.getX() - mTranslator.getDownX(); - if (dy > mTouchSlop && dy > Math.abs(dx)) { - mTranslator.dispatchDownEvents(ev); - mTranslator.processMotionEvent(ev); + float dy = ev.getY(idx) - mDownEvents.get(pid).y; + float dx = ev.getX(idx) - mDownEvents.get(pid).x; + // Currently input dispatcher will not do touch transfer if there are more than + // one touch pointer. Hence, even if slope passed, only set the slippery flag + // when there is single touch event. (context: InputDispatcher.cpp line 1445) + if (dy > mTouchSlop && dy > Math.abs(dx) && ev.getPointerCount() == 1) { + ev.setAction(ACTION_DOWN); + dispatchTouchEvent(ev); + setWindowSlippery(true); return true; } if (Math.abs(dx) > mTouchSlop) { @@ -110,13 +130,27 @@ public class StatusBarTouchController implements TouchController { return false; } - @Override public final boolean onControllerTouchEvent(MotionEvent ev) { - mTranslator.processMotionEvent(ev); + if (ev.getAction() == ACTION_UP || ev.getAction() == ACTION_CANCEL) { + dispatchTouchEvent(ev); + setWindowSlippery(false); + return true; + } return true; } + private void setWindowSlippery(boolean enable) { + Window w = mLauncher.getWindow(); + WindowManager.LayoutParams wlp = w.getAttributes(); + if (enable) { + wlp.flags |= FLAG_SLIPPERY; + } else { + wlp.flags &= ~FLAG_SLIPPERY; + } + w.setAttributes(wlp); + } + private boolean canInterceptTouch(MotionEvent ev) { if (!mLauncher.isInState(LauncherState.NORMAL) || AbstractFloatingView.getTopOpenViewWithType(mLauncher, @@ -132,4 +166,4 @@ public class StatusBarTouchController implements TouchController { mSysUiProxy = RecentsModel.INSTANCE.get(mLauncher).getSystemUiProxy(); return mSysUiProxy != null; } -} +} \ No newline at end of file -- cgit v1.2.3