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/* * Copyright (C) 2015 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 android.support.v4.view; /** * Helper class for accessing values in {@link android.view.InputDevice}. */ public final class InputDeviceCompat { /** * A mask for input source classes. * * Each distinct input source constant has one or more input source class bits set to * specify the desired interpretation for its input events. */ public static final int SOURCE_CLASS_MASK = 0x000000ff; /** * The input source has no class. * * It is up to the application to determine how to handle the device based on the device type. */ public static final int SOURCE_CLASS_NONE = 0x00000000; /** * The input source has buttons or keys. * Examples: {@link #SOURCE_KEYBOARD}, {@link #SOURCE_DPAD}. * * A {@link android.view.KeyEvent} should be interpreted as a button or key press. */ public static final int SOURCE_CLASS_BUTTON = 0x00000001; /** * The input source is a pointing device associated with a display. * Examples: {@link #SOURCE_TOUCHSCREEN}, {@link #SOURCE_MOUSE}. * * A {@link android.view.MotionEvent} should be interpreted as absolute coordinates in * display units according to the {@link android.view.View} hierarchy. Pointer down/up * indicated when * the finger touches the display or when the selection button is pressed/released. * * Use {@link android.view.InputDevice#getMotionRange} to query the range of the pointing * device. Some devices permit * touches outside the display area so the effective range may be somewhat smaller or larger * than the actual display size. */ public static final int SOURCE_CLASS_POINTER = 0x00000002; /** * The input source is a trackball navigation device. * Examples: {@link #SOURCE_TRACKBALL}. * * A {@link android.view.MotionEvent} should be interpreted as relative movements in * device-specific * units used for navigation purposes. Pointer down/up indicates when the selection button * is pressed/released. * * Use {@link android.view.InputDevice#getMotionRange} to query the range of motion. */ public static final int SOURCE_CLASS_TRACKBALL = 0x00000004; /** * The input source is an absolute positioning device not associated with a display * (unlike {@link #SOURCE_CLASS_POINTER}). * * A {@link android.view.MotionEvent} should be interpreted as absolute coordinates in * device-specific surface units. * * Use {@link android.view.InputDevice#getMotionRange} to query the range of positions. */ public static final int SOURCE_CLASS_POSITION = 0x00000008; /** * The input source is a joystick. * * A {@link android.view.MotionEvent} should be interpreted as absolute joystick movements. * * Use {@link android.view.InputDevice#getMotionRange} to query the range of positions. */ public static final int SOURCE_CLASS_JOYSTICK = 0x00000010; /** * The input source is unknown. */ public static final int SOURCE_UNKNOWN = 0x00000000; /** * The input source is a keyboard. * * This source indicates pretty much anything that has buttons. Use * {@link android.view.InputDevice#getKeyboardType()} to determine whether the keyboard has * alphabetic keys * and can be used to enter text. * * @see #SOURCE_CLASS_BUTTON */ public static final int SOURCE_KEYBOARD = 0x00000100 | SOURCE_CLASS_BUTTON; /** * The input source is a DPad. * * @see #SOURCE_CLASS_BUTTON */ public static final int SOURCE_DPAD = 0x00000200 | SOURCE_CLASS_BUTTON; /** * The input source is a game pad. * (It may also be a {@link #SOURCE_JOYSTICK}). * * @see #SOURCE_CLASS_BUTTON */ public static final int SOURCE_GAMEPAD = 0x00000400 | SOURCE_CLASS_BUTTON; /** * The input source is a touch screen pointing device. * * @see #SOURCE_CLASS_POINTER */ public static final int SOURCE_TOUCHSCREEN = 0x00001000 | SOURCE_CLASS_POINTER; /** * The input source is a mouse pointing device. * This code is also used for other mouse-like pointing devices such as trackpads * and trackpoints. * * @see #SOURCE_CLASS_POINTER */ public static final int SOURCE_MOUSE = 0x00002000 | SOURCE_CLASS_POINTER; /** * The input source is a stylus pointing device. * <p> * Note that this bit merely indicates that an input device is capable of obtaining * input from a stylus. To determine whether a given touch event was produced * by a stylus, examine the tool type returned by {@link android.view.MotionEvent#getToolType(int)} * for each individual pointer. * </p><p> * A single touch event may multiple pointers with different tool types, * such as an event that has one pointer with tool type * {@link android.view.MotionEvent#TOOL_TYPE_FINGER} and another pointer with tool type * {@link android.view.MotionEvent#TOOL_TYPE_STYLUS}. So it is important to examine * the tool type of each pointer, regardless of the source reported * by {@link android.view.MotionEvent#getSource()}. * </p> * * @see #SOURCE_CLASS_POINTER */ public static final int SOURCE_STYLUS = 0x00004000 | SOURCE_CLASS_POINTER; /** * The input source is a trackball. * * @see #SOURCE_CLASS_TRACKBALL */ public static final int SOURCE_TRACKBALL = 0x00010000 | SOURCE_CLASS_TRACKBALL; /** * The input source is a touch pad or digitizer tablet that is not * associated with a display (unlike {@link #SOURCE_TOUCHSCREEN}). * * @see #SOURCE_CLASS_POSITION */ public static final int SOURCE_TOUCHPAD = 0x00100000 | SOURCE_CLASS_POSITION; /** * The input source is a touch device whose motions should be interpreted as navigation events. * * For example, an upward swipe should be as an upward focus traversal in the same manner as * pressing up on a D-Pad would be. Swipes to the left, right and down should be treated in a * similar manner. * * @see #SOURCE_CLASS_NONE */ public static final int SOURCE_TOUCH_NAVIGATION = 0x00200000 | SOURCE_CLASS_NONE; /** * The input source is a joystick. * (It may also be a {@link #SOURCE_GAMEPAD}). * * @see #SOURCE_CLASS_JOYSTICK */ public static final int SOURCE_JOYSTICK = 0x01000000 | SOURCE_CLASS_JOYSTICK; /** * The input source is a device connected through HDMI-based bus. * * The key comes in through HDMI-CEC or MHL signal line, and is treated as if it were * generated by a locally connected DPAD or keyboard. */ public static final int SOURCE_HDMI = 0x02000000 | SOURCE_CLASS_BUTTON; /** * A special input source constant that is used when filtering input devices * to match devices that provide any type of input source. */ public static final int SOURCE_ANY = 0xffffff00; private InputDeviceCompat() { } }