| /* |
| * Copyright (C) 2017 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.documentsui.selection; |
| |
| import android.graphics.Point; |
| import android.view.KeyEvent; |
| import android.view.MotionEvent; |
| |
| /** |
| * Utility methods for working with {@link MotionEvent} instances. |
| */ |
| final class MotionEvents { |
| |
| private MotionEvents() {} |
| |
| static boolean isMouseEvent(MotionEvent e) { |
| return e.getToolType(0) == MotionEvent.TOOL_TYPE_MOUSE; |
| } |
| |
| static boolean isTouchEvent(MotionEvent e) { |
| return e.getToolType(0) == MotionEvent.TOOL_TYPE_FINGER; |
| } |
| |
| static boolean isActionMove(MotionEvent e) { |
| return e.getActionMasked() == MotionEvent.ACTION_MOVE; |
| } |
| |
| static boolean isActionDown(MotionEvent e) { |
| return e.getActionMasked() == MotionEvent.ACTION_DOWN; |
| } |
| |
| static boolean isActionUp(MotionEvent e) { |
| return e.getActionMasked() == MotionEvent.ACTION_UP; |
| } |
| |
| static boolean isActionPointerUp(MotionEvent e) { |
| return e.getActionMasked() == MotionEvent.ACTION_POINTER_UP; |
| } |
| |
| static boolean isActionPointerDown(MotionEvent e) { |
| return e.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN; |
| } |
| |
| static boolean isActionCancel(MotionEvent e) { |
| return e.getActionMasked() == MotionEvent.ACTION_CANCEL; |
| } |
| |
| static Point getOrigin(MotionEvent e) { |
| return new Point((int) e.getX(), (int) e.getY()); |
| } |
| |
| static boolean isPrimaryButtonPressed(MotionEvent e) { |
| return e.isButtonPressed(MotionEvent.BUTTON_PRIMARY); |
| } |
| |
| public static boolean isSecondaryButtonPressed(MotionEvent e) { |
| return e.isButtonPressed(MotionEvent.BUTTON_SECONDARY); |
| } |
| |
| public static boolean isTertiaryButtonPressed(MotionEvent e) { |
| return e.isButtonPressed(MotionEvent.BUTTON_TERTIARY); |
| } |
| |
| static boolean isShiftKeyPressed(MotionEvent e) { |
| return hasBit(e.getMetaState(), KeyEvent.META_SHIFT_ON); |
| } |
| |
| static boolean isCtrlKeyPressed(MotionEvent e) { |
| return hasBit(e.getMetaState(), KeyEvent.META_CTRL_ON); |
| } |
| |
| static boolean isAltKeyPressed(MotionEvent e) { |
| return hasBit(e.getMetaState(), KeyEvent.META_ALT_ON); |
| } |
| |
| public static boolean isTouchpadScroll(MotionEvent e) { |
| // Touchpad inputs are treated as mouse inputs, and when scrolling, there are no buttons |
| // returned. |
| return isMouseEvent(e) && isActionMove(e) && e.getButtonState() == 0; |
| } |
| |
| private static boolean hasBit(int metaState, int bit) { |
| return (metaState & bit) != 0; |
| } |
| } |