1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.terminal; 18 19 import android.util.Log; 20 import android.view.KeyCharacterMap; 21 import android.view.KeyEvent; 22 import android.view.View; 23 24 public class TerminalKeys { 25 private static final String TAG = "TerminalKeys"; 26 private static final boolean DEBUG = true; 27 // Taken from vterm_input.h 28 // TODO: Consider setting these via jni 29 public static final int VTERM_KEY_NONE = 0; 30 public static final int VTERM_KEY_ENTER = 1; 31 public static final int VTERM_KEY_TAB = 2; 32 public static final int VTERM_KEY_BACKSPACE = 3; 33 public static final int VTERM_KEY_ESCAPE = 4; 34 public static final int VTERM_KEY_UP = 5; 35 public static final int VTERM_KEY_DOWN = 6; 36 public static final int VTERM_KEY_LEFT = 7; 37 public static final int VTERM_KEY_RIGHT = 8; 38 public static final int VTERM_KEY_INS = 9; 39 public static final int VTERM_KEY_DEL = 10; 40 public static final int VTERM_KEY_HOME = 11; 41 public static final int VTERM_KEY_END = 12; 42 public static final int VTERM_KEY_PAGEUP = 13; 43 public static final int VTERM_KEY_PAGEDOWN = 14; 44 45 public static final int VTERM_KEY_FUNCTION_0 = 256; 46 public static final int VTERM_KEY_FUNCTION_MAX = VTERM_KEY_FUNCTION_0 + 255; 47 48 public static final int VTERM_KEY_KP_0 = 512; 49 public static final int VTERM_KEY_KP_1 = 513; 50 public static final int VTERM_KEY_KP_2 = 514; 51 public static final int VTERM_KEY_KP_3 = 515; 52 public static final int VTERM_KEY_KP_4 = 516; 53 public static final int VTERM_KEY_KP_5 = 517; 54 public static final int VTERM_KEY_KP_6 = 518; 55 public static final int VTERM_KEY_KP_7 = 519; 56 public static final int VTERM_KEY_KP_8 = 520; 57 public static final int VTERM_KEY_KP_9 = 521; 58 public static final int VTERM_KEY_KP_MULT = 522; 59 public static final int VTERM_KEY_KP_PLUS = 523; 60 public static final int VTERM_KEY_KP_COMMA = 524; 61 public static final int VTERM_KEY_KP_MINUS = 525; 62 public static final int VTERM_KEY_KP_PERIOD = 526; 63 public static final int VTERM_KEY_KP_DIVIDE = 527; 64 public static final int VTERM_KEY_KP_ENTER = 528; 65 public static final int VTERM_KEY_KP_EQUAL = 529; 66 67 public static final int VTERM_MOD_NONE = 0x00; 68 public static final int VTERM_MOD_SHIFT = 0x01; 69 public static final int VTERM_MOD_ALT = 0x02; 70 public static final int VTERM_MOD_CTRL = 0x04; 71 72 private Terminal mTerm; 73 74 public static int getModifiers(KeyEvent event) { 75 int mod = 0; 76 if (event.isCtrlPressed()) { 77 mod |= VTERM_MOD_CTRL; 78 } 79 if (event.isAltPressed()) { 80 mod |= VTERM_MOD_ALT; 81 } 82 if (event.isShiftPressed()) { 83 mod |= VTERM_MOD_SHIFT; 84 } 85 return mod; 86 } 87 88 public static int getKey(KeyEvent event) { 89 switch(event.getKeyCode()) { 90 case KeyEvent.KEYCODE_ENTER: 91 return VTERM_KEY_ENTER; 92 case KeyEvent.KEYCODE_TAB: 93 return VTERM_KEY_TAB; 94 case KeyEvent.KEYCODE_DEL: 95 return VTERM_KEY_BACKSPACE; 96 case KeyEvent.KEYCODE_ESCAPE: 97 return VTERM_KEY_ESCAPE; 98 case KeyEvent.KEYCODE_DPAD_UP: 99 return VTERM_KEY_UP; 100 case KeyEvent.KEYCODE_DPAD_DOWN: 101 return VTERM_KEY_DOWN; 102 case KeyEvent.KEYCODE_DPAD_LEFT: 103 return VTERM_KEY_LEFT; 104 case KeyEvent.KEYCODE_DPAD_RIGHT: 105 return VTERM_KEY_RIGHT; 106 case KeyEvent.KEYCODE_INSERT: 107 return VTERM_KEY_INS; 108 case KeyEvent.KEYCODE_FORWARD_DEL: 109 return VTERM_KEY_DEL; 110 case KeyEvent.KEYCODE_MOVE_HOME: 111 return VTERM_KEY_HOME; 112 case KeyEvent.KEYCODE_MOVE_END: 113 return VTERM_KEY_END; 114 case KeyEvent.KEYCODE_PAGE_UP: 115 return VTERM_KEY_PAGEUP; 116 case KeyEvent.KEYCODE_PAGE_DOWN: 117 return VTERM_KEY_PAGEDOWN; 118 default: 119 return 0; 120 } 121 } 122 123 public static String getKeyName(int key) { 124 switch(key) { 125 case VTERM_KEY_ENTER: 126 return "VTERM_KEY_ENTER"; 127 case VTERM_KEY_TAB: 128 return "VTERM_KEY_TAB"; 129 case VTERM_KEY_BACKSPACE: 130 return "VTERM_KEY_BACKSPACE"; 131 case VTERM_KEY_ESCAPE: 132 return "VTERM_KEY_ESCAPE"; 133 case VTERM_KEY_UP: 134 return "VTERM_KEY_UP"; 135 case VTERM_KEY_DOWN: 136 return "VTERM_KEY_DOWN"; 137 case VTERM_KEY_LEFT: 138 return "VTERM_KEY_LEFT"; 139 case VTERM_KEY_RIGHT: 140 return "VTERM_KEY_RIGHT"; 141 case VTERM_KEY_INS: 142 return "VTERM_KEY_INS"; 143 case VTERM_KEY_DEL: 144 return "VTERM_KEY_DEL"; 145 case VTERM_KEY_HOME: 146 return "VTERM_KEY_HOME"; 147 case VTERM_KEY_END: 148 return "VTERM_KEY_END"; 149 case VTERM_KEY_PAGEUP: 150 return "VTERM_KEY_PAGEUP"; 151 case VTERM_KEY_PAGEDOWN: 152 return "VTERM_KEY_PAGEDOWN"; 153 case VTERM_KEY_NONE: 154 return "VTERM_KEY_NONE"; 155 default: 156 return "UNKNOWN KEY"; 157 } 158 } 159 160 public int getCharacter(KeyEvent event) { 161 int c = event.getUnicodeChar(); 162 // TODO: Actually support dead keys 163 if ((c & KeyCharacterMap.COMBINING_ACCENT) != 0) { 164 Log.w(TAG, "Received dead key, ignoring"); 165 return 0; 166 } 167 return c; 168 } 169 170 public boolean onKey(View v, int keyCode, KeyEvent event) { 171 if (mTerm == null || event.getAction() == KeyEvent.ACTION_UP) return false; 172 173 int modifiers = getModifiers(event); 174 175 int c = getKey(event); 176 if (c != 0) { 177 if (DEBUG) { 178 Log.d(TAG, "dispatched key event: " + 179 "mod=" + modifiers + ", " + 180 "keys=" + getKeyName(c)); 181 } 182 return mTerm.dispatchKey(modifiers, c); 183 } 184 185 c = getCharacter(event); 186 if (c != 0) { 187 if (DEBUG) { 188 Log.d(TAG, "dispatched key event: " + 189 "mod=" + modifiers + ", " + 190 "character='" + new String(Character.toChars(c)) + "'"); 191 } 192 return mTerm.dispatchCharacter(modifiers, c); 193 } 194 195 return false; 196 } 197 198 public void setTerminal(Terminal term) { 199 mTerm = term; 200 } 201 } 202
