Support right click to bring up app menu and actions (9f90efb3) · Commits · e / os / android_packages_apps_Trebuchet

src/com/android/launcher3/CheckLongPressHelper.java

+39 −3

Original line number	Diff line number	Diff line
		@@ -16,12 +16,15 @@

		package com.android.launcher3;

		import android.os.Handler;
		import android.view.InputDevice;
		import android.view.MotionEvent;
		import android.view.View;
		import android.view.ViewConfiguration;

		/**
		* Utility class to handle tripper long press on a view with custom timeout and stylus event
		* Utility class to handle tripper long press or right click on a view with custom timeout and
		* stylus event
		*/
		public class CheckLongPressHelper {

		@@ -34,6 +37,7 @@ public class CheckLongPressHelper {
		private float mLongPressTimeoutFactor = DEFAULT_LONG_PRESS_TIMEOUT_FACTOR;

		private boolean mHasPerformedLongPress;
		private boolean mIsInMouseRightClick;

		private Runnable mPendingCheckForLongPress;

		@@ -59,6 +63,26 @@ public class CheckLongPressHelper {
		// start fresh on touch down.
		cancelLongPress();

		// Mouse right click should immediately trigger a long press
		if (isMouseRightClickDownOrMove(ev)) {
		mIsInMouseRightClick = true;
		triggerLongPress();
		final Handler handler = mView.getHandler();
		if (handler != null) {
		// Send an ACTION_UP to end this click gesture to avoid user dragging with
		// mouse's right button. Note that we need to call
		// {@link Handler#postAtFrontOfQueue()} instead of {@link View#post()} to
		// make sure ACTION_UP is sent before any ACTION_MOVE if user is dragging.
		final MotionEvent actionUpEvent = MotionEvent.obtain(ev);
		actionUpEvent.setAction(MotionEvent.ACTION_UP);
		handler.postAtFrontOfQueue(() -> {
		mView.getRootView().dispatchTouchEvent(actionUpEvent);
		actionUpEvent.recycle();
		});
		}
		break;
		}

		postCheckForLongPress();
		if (isStylusButtonPressed(ev)) {
		triggerLongPress();
		@@ -70,7 +94,8 @@ public class CheckLongPressHelper {
		cancelLongPress();
		break;
		case MotionEvent.ACTION_MOVE:
		if (!Utilities.pointInView(mView, ev.getX(), ev.getY(), mSlop)) {
		if (mIsInMouseRightClick
		\|\| !Utilities.pointInView(mView, ev.getX(), ev.getY(), mSlop)) {
		cancelLongPress();
		} else if (mPendingCheckForLongPress != null && isStylusButtonPressed(ev)) {
		// Only trigger long press if it has not been cancelled before
		@@ -98,9 +123,10 @@ public class CheckLongPressHelper {
		}

		/**
		* Cancels any pending long press
		* Cancels any pending long press and right click
		*/
		public void cancelLongPress() {
		mIsInMouseRightClick = false;
		mHasPerformedLongPress = false;
		clearCallbacks();
		}
		@@ -150,4 +176,14 @@ public class CheckLongPressHelper {
		return event.getToolType(0) == MotionEvent.TOOL_TYPE_STYLUS
		&& event.isButtonPressed(MotionEvent.BUTTON_SECONDARY);
		}

		/**
		* Detect ACTION_DOWN or ACTION_MOVE from mouse right button. Note that we cannot detect
		* ACTION_UP from mouse's right button because, in that case,
		* {@link MotionEvent#getButtonState()} returns 0 for any mouse button (right, middle, right).
		*/
		private static boolean isMouseRightClickDownOrMove(MotionEvent event) {
		return event.isFromSource(InputDevice.SOURCE_MOUSE)
		&& ((event.getButtonState() & MotionEvent.BUTTON_SECONDARY) != 0);
		}
		}