The Tor Browser / file comparison
comparison: mobile/android/base/util/GamepadUtils.java
mobile/android/base/util/GamepadUtils.java
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
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| -1:000000000000 | 0:dcf4cbb9d2c4 |
|---|---|
| 1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 package org.mozilla.gecko.util; | |
| 7 | |
| 8 import android.os.Build; | |
| 9 import android.view.InputDevice; | |
| 10 import android.view.KeyCharacterMap; | |
| 11 import android.view.KeyEvent; | |
| 12 import android.view.MotionEvent; | |
| 13 import android.view.View; | |
| 14 import android.widget.AdapterView; | |
| 15 import android.widget.ListView; | |
| 16 | |
| 17 public final class GamepadUtils { | |
| 18 private static final int SONY_XPERIA_GAMEPAD_DEVICE_ID = 196611; | |
| 19 | |
| 20 private static View.OnKeyListener sClickDispatcher; | |
| 21 private static float sDeadZoneThresholdOverride = 1e-2f; | |
| 22 | |
| 23 private GamepadUtils() { | |
| 24 } | |
| 25 | |
| 26 private static boolean isGamepadKey(KeyEvent event) { | |
| 27 if (Build.VERSION.SDK_INT >= 9) { | |
| 28 return (event.getSource() & InputDevice.SOURCE_GAMEPAD) == InputDevice.SOURCE_GAMEPAD; | |
| 29 } | |
| 30 return false; | |
| 31 } | |
| 32 | |
| 33 public static boolean isActionKey(KeyEvent event) { | |
| 34 return (isGamepadKey(event) && (event.getKeyCode() == KeyEvent.KEYCODE_BUTTON_A)); | |
| 35 } | |
| 36 | |
| 37 public static boolean isActionKeyDown(KeyEvent event) { | |
| 38 return isActionKey(event) && event.getAction() == KeyEvent.ACTION_DOWN; | |
| 39 } | |
| 40 | |
| 41 public static boolean isBackKey(KeyEvent event) { | |
| 42 return (isGamepadKey(event) && (event.getKeyCode() == KeyEvent.KEYCODE_BUTTON_B)); | |
| 43 } | |
| 44 | |
| 45 public static void overrideDeadZoneThreshold(float threshold) { | |
| 46 sDeadZoneThresholdOverride = threshold; | |
| 47 } | |
| 48 | |
| 49 public static boolean isValueInDeadZone(MotionEvent event, int axis) { | |
| 50 if (Build.VERSION.SDK_INT < 9) { | |
| 51 return false; | |
| 52 } | |
| 53 | |
| 54 float threshold; | |
| 55 if (sDeadZoneThresholdOverride >= 0) { | |
| 56 threshold = sDeadZoneThresholdOverride; | |
| 57 } else { | |
| 58 InputDevice.MotionRange range = event.getDevice().getMotionRange(axis); | |
| 59 threshold = range.getFlat() + range.getFuzz(); | |
| 60 } | |
| 61 float value = event.getAxisValue(axis); | |
| 62 return (Math.abs(value) < threshold); | |
| 63 } | |
| 64 | |
| 65 public static boolean isPanningControl(MotionEvent event) { | |
| 66 if (Build.VERSION.SDK_INT < 12) { | |
| 67 return false; | |
| 68 } | |
| 69 if ((event.getSource() & InputDevice.SOURCE_CLASS_MASK) != InputDevice.SOURCE_CLASS_JOYSTICK) { | |
| 70 return false; | |
| 71 } | |
| 72 if (isValueInDeadZone(event, MotionEvent.AXIS_X) | |
| 73 && isValueInDeadZone(event, MotionEvent.AXIS_Y) | |
| 74 && isValueInDeadZone(event, MotionEvent.AXIS_Z) | |
| 75 && isValueInDeadZone(event, MotionEvent.AXIS_RZ)) { | |
| 76 return false; | |
| 77 } | |
| 78 return true; | |
| 79 } | |
| 80 | |
| 81 public static View.OnKeyListener getClickDispatcher() { | |
| 82 if (sClickDispatcher == null) { | |
| 83 sClickDispatcher = new View.OnKeyListener() { | |
| 84 @Override | |
| 85 public boolean onKey(View v, int keyCode, KeyEvent event) { | |
| 86 if (isActionKeyDown(event)) { | |
| 87 return v.performClick(); | |
| 88 } | |
| 89 return false; | |
| 90 } | |
| 91 }; | |
| 92 } | |
| 93 return sClickDispatcher; | |
| 94 } | |
| 95 | |
| 96 public static KeyEvent translateSonyXperiaGamepadKeys(int keyCode, KeyEvent event) { | |
| 97 // The cross and circle button mappings may be swapped in the different regions so | |
| 98 // determine if they are swapped so the proper key codes can be mapped to the keys | |
| 99 boolean areKeysSwapped = areSonyXperiaGamepadKeysSwapped(); | |
| 100 | |
| 101 // If a Sony Xperia, remap the cross and circle buttons to buttons | |
| 102 // A and B for the gamepad API | |
| 103 switch (keyCode) { | |
| 104 case KeyEvent.KEYCODE_BACK: | |
| 105 keyCode = (areKeysSwapped ? KeyEvent.KEYCODE_BUTTON_A : KeyEvent.KEYCODE_BUTTON_B); | |
| 106 break; | |
| 107 | |
| 108 case KeyEvent.KEYCODE_DPAD_CENTER: | |
| 109 keyCode = (areKeysSwapped ? KeyEvent.KEYCODE_BUTTON_B : KeyEvent.KEYCODE_BUTTON_A); | |
| 110 break; | |
| 111 | |
| 112 default: | |
| 113 return event; | |
| 114 } | |
| 115 | |
| 116 return new KeyEvent(event.getAction(), keyCode); | |
| 117 } | |
| 118 | |
| 119 public static boolean isSonyXperiaGamepadKeyEvent(KeyEvent event) { | |
| 120 return (event.getDeviceId() == SONY_XPERIA_GAMEPAD_DEVICE_ID && | |
| 121 "Sony Ericsson".equals(Build.MANUFACTURER) && | |
| 122 ("R800".equals(Build.MODEL) || "R800i".equals(Build.MODEL))); | |
| 123 } | |
| 124 | |
| 125 private static boolean areSonyXperiaGamepadKeysSwapped() { | |
| 126 // The cross and circle buttons on Sony Xperia phones are swapped | |
| 127 // in different regions | |
| 128 // http://developer.sonymobile.com/2011/02/13/xperia-play-game-keys/ | |
| 129 final char DEFAULT_O_BUTTON_LABEL = 0x25CB; | |
| 130 | |
| 131 boolean swapped = false; | |
| 132 int[] deviceIds = InputDevice.getDeviceIds(); | |
| 133 | |
| 134 for (int i= 0; deviceIds != null && i < deviceIds.length; i++) { | |
| 135 KeyCharacterMap keyCharacterMap = KeyCharacterMap.load(deviceIds[i]); | |
| 136 if (keyCharacterMap != null && DEFAULT_O_BUTTON_LABEL == | |
| 137 keyCharacterMap.getDisplayLabel(KeyEvent.KEYCODE_DPAD_CENTER)) { | |
| 138 swapped = true; | |
| 139 break; | |
| 140 } | |
| 141 } | |
| 142 return swapped; | |
| 143 } | |
| 144 } |
