Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 Google Inc. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| 5 | * use this file except in compliance with the License. You may obtain a copy of |
| 6 | * 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, WITHOUT |
| 12 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 13 | * License for the specific language governing permissions and limitations under |
| 14 | * the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.internal.widget; |
| 18 | |
| 19 | import java.util.Locale; |
| 20 | import android.content.Context; |
| 21 | import android.content.res.Resources; |
| 22 | import android.content.res.XmlResourceParser; |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 23 | import android.graphics.drawable.Drawable; |
| 24 | import android.inputmethodservice.Keyboard; |
| 25 | import android.inputmethodservice.KeyboardView; |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 26 | import com.android.internal.R; |
| 27 | |
| 28 | /** |
| 29 | * A basic, embed-able keyboard designed for password entry. Allows entry of all Latin-1 characters. |
| 30 | * |
| 31 | * It has two modes: alpha and numeric. In alpha mode, it allows all Latin-1 characters and enables |
| 32 | * an additional keyboard with symbols. In numeric mode, it shows a 12-key DTMF dialer-like |
| 33 | * keypad with alpha characters hints. |
| 34 | */ |
| 35 | public class PasswordEntryKeyboard extends Keyboard { |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 36 | private static final int SHIFT_OFF = 0; |
| 37 | private static final int SHIFT_ON = 1; |
| 38 | private static final int SHIFT_LOCKED = 2; |
| 39 | public static final int KEYCODE_SPACE = ' '; |
| 40 | |
| 41 | private Drawable mShiftIcon; |
| 42 | private Drawable mShiftLockIcon; |
Jim Miller | 6465f77 | 2011-01-19 22:01:25 -0800 | [diff] [blame] | 43 | |
| 44 | // These two arrays must be the same length |
| 45 | private Drawable[] mOldShiftIcons = { null, null }; |
| 46 | private Key[] mShiftKeys = { null, null }; |
| 47 | |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 48 | private Key mEnterKey; |
| 49 | private Key mF1Key; |
| 50 | private Key mSpaceKey; |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 51 | private int mShiftState = SHIFT_OFF; |
| 52 | |
| 53 | static int sSpacebarVerticalCorrection; |
| 54 | |
| 55 | public PasswordEntryKeyboard(Context context, int xmlLayoutResId) { |
| 56 | this(context, xmlLayoutResId, 0); |
| 57 | } |
| 58 | |
Jae Yong Sung | 8171b51 | 2010-08-05 10:44:27 -0700 | [diff] [blame] | 59 | public PasswordEntryKeyboard(Context context, int xmlLayoutResId, int width, int height) { |
| 60 | this(context, xmlLayoutResId, 0, width, height); |
| 61 | } |
| 62 | |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 63 | public PasswordEntryKeyboard(Context context, int xmlLayoutResId, int mode) { |
| 64 | super(context, xmlLayoutResId, mode); |
Jae Yong Sung | 8171b51 | 2010-08-05 10:44:27 -0700 | [diff] [blame] | 65 | init(context); |
| 66 | } |
| 67 | |
| 68 | public PasswordEntryKeyboard(Context context, int xmlLayoutResId, int mode, |
| 69 | int width, int height) { |
| 70 | super(context, xmlLayoutResId, mode, width, height); |
| 71 | init(context); |
| 72 | } |
| 73 | |
| 74 | private void init(Context context) { |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 75 | final Resources res = context.getResources(); |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 76 | mShiftIcon = res.getDrawable(R.drawable.sym_keyboard_shift); |
| 77 | mShiftLockIcon = res.getDrawable(R.drawable.sym_keyboard_shift_locked); |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 78 | sSpacebarVerticalCorrection = res.getDimensionPixelOffset( |
| 79 | R.dimen.password_keyboard_spacebar_vertical_correction); |
| 80 | } |
| 81 | |
| 82 | public PasswordEntryKeyboard(Context context, int layoutTemplateResId, |
| 83 | CharSequence characters, int columns, int horizontalPadding) { |
| 84 | super(context, layoutTemplateResId, characters, columns, horizontalPadding); |
| 85 | } |
| 86 | |
| 87 | @Override |
| 88 | protected Key createKeyFromXml(Resources res, Row parent, int x, int y, |
| 89 | XmlResourceParser parser) { |
| 90 | LatinKey key = new LatinKey(res, parent, x, y, parser); |
| 91 | final int code = key.codes[0]; |
| 92 | if (code >=0 && code != '\n' && (code < 32 || code > 127)) { |
Jim Miller | ec52eed | 2010-02-11 17:27:22 -0800 | [diff] [blame] | 93 | // Log.w(TAG, "Key code for " + key.label + " is not latin-1"); |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 94 | key.label = " "; |
| 95 | key.setEnabled(false); |
| 96 | } |
| 97 | switch (key.codes[0]) { |
| 98 | case 10: |
| 99 | mEnterKey = key; |
| 100 | break; |
| 101 | case PasswordEntryKeyboardView.KEYCODE_F1: |
| 102 | mF1Key = key; |
| 103 | break; |
| 104 | case 32: |
| 105 | mSpaceKey = key; |
| 106 | break; |
| 107 | } |
| 108 | return key; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Allows enter key resources to be overridden |
| 113 | * @param res resources to grab given items from |
| 114 | * @param previewId preview drawable shown on enter key |
| 115 | * @param iconId normal drawable shown on enter key |
| 116 | * @param labelId string shown on enter key |
| 117 | */ |
| 118 | void setEnterKeyResources(Resources res, int previewId, int iconId, int labelId) { |
| 119 | if (mEnterKey != null) { |
| 120 | // Reset some of the rarely used attributes. |
| 121 | mEnterKey.popupCharacters = null; |
| 122 | mEnterKey.popupResId = 0; |
| 123 | mEnterKey.text = null; |
| 124 | |
| 125 | mEnterKey.iconPreview = res.getDrawable(previewId); |
| 126 | mEnterKey.icon = res.getDrawable(iconId); |
| 127 | mEnterKey.label = res.getText(labelId); |
| 128 | |
| 129 | // Set the initial size of the preview icon |
| 130 | if (mEnterKey.iconPreview != null) { |
| 131 | mEnterKey.iconPreview.setBounds(0, 0, |
| 132 | mEnterKey.iconPreview.getIntrinsicWidth(), |
| 133 | mEnterKey.iconPreview.getIntrinsicHeight()); |
| 134 | } |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * Allows shiftlock to be turned on. See {@link #setShiftLocked(boolean)} |
| 140 | * |
| 141 | */ |
| 142 | void enableShiftLock() { |
Jim Miller | 6465f77 | 2011-01-19 22:01:25 -0800 | [diff] [blame] | 143 | int i = 0; |
| 144 | for (int index : getShiftKeyIndices()) { |
| 145 | if (index >= 0 && i < mShiftKeys.length) { |
| 146 | mShiftKeys[i] = getKeys().get(index); |
| 147 | if (mShiftKeys[i] instanceof LatinKey) { |
| 148 | ((LatinKey)mShiftKeys[i]).enableShiftLock(); |
| 149 | } |
| 150 | mOldShiftIcons[i] = mShiftKeys[i].icon; |
| 151 | i++; |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 152 | } |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 153 | } |
| 154 | } |
| 155 | |
| 156 | /** |
| 157 | * Turn on shift lock. This turns on the LED for this key, if it has one. |
| 158 | * It should be followed by a call to {@link KeyboardView#invalidateKey(int)} |
| 159 | * or {@link KeyboardView#invalidateAllKeys()} |
| 160 | * |
| 161 | * @param shiftLocked |
| 162 | */ |
| 163 | void setShiftLocked(boolean shiftLocked) { |
Jim Miller | 6465f77 | 2011-01-19 22:01:25 -0800 | [diff] [blame] | 164 | for (Key shiftKey : mShiftKeys) { |
| 165 | if (shiftKey != null) { |
| 166 | shiftKey.on = shiftLocked; |
| 167 | shiftKey.icon = mShiftLockIcon; |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 168 | } |
| 169 | } |
Jim Miller | 6465f77 | 2011-01-19 22:01:25 -0800 | [diff] [blame] | 170 | mShiftState = shiftLocked ? SHIFT_LOCKED : SHIFT_ON; |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Turn on shift mode. Sets shift mode and turns on icon for shift key. |
| 175 | * It should be followed by a call to {@link KeyboardView#invalidateKey(int)} |
| 176 | * or {@link KeyboardView#invalidateAllKeys()} |
| 177 | * |
| 178 | * @param shiftLocked |
| 179 | */ |
| 180 | @Override |
| 181 | public boolean setShifted(boolean shiftState) { |
| 182 | boolean shiftChanged = false; |
Jim Miller | 6465f77 | 2011-01-19 22:01:25 -0800 | [diff] [blame] | 183 | if (shiftState == false) { |
| 184 | shiftChanged = mShiftState != SHIFT_OFF; |
| 185 | mShiftState = SHIFT_OFF; |
| 186 | } else if (mShiftState == SHIFT_OFF) { |
| 187 | shiftChanged = mShiftState == SHIFT_OFF; |
| 188 | mShiftState = SHIFT_ON; |
| 189 | } |
| 190 | for (int i = 0; i < mShiftKeys.length; i++) { |
| 191 | if (mShiftKeys[i] != null) { |
| 192 | if (shiftState == false) { |
| 193 | mShiftKeys[i].on = false; |
| 194 | mShiftKeys[i].icon = mOldShiftIcons[i]; |
| 195 | } else if (mShiftState == SHIFT_OFF) { |
| 196 | mShiftKeys[i].on = false; |
| 197 | mShiftKeys[i].icon = mShiftIcon; |
| 198 | } |
| 199 | } else { |
| 200 | // return super.setShifted(shiftState); |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 201 | } |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 202 | } |
| 203 | return shiftChanged; |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * Whether or not keyboard is shifted. |
| 208 | * @return true if keyboard state is shifted. |
| 209 | */ |
| 210 | @Override |
| 211 | public boolean isShifted() { |
Jim Miller | 6465f77 | 2011-01-19 22:01:25 -0800 | [diff] [blame] | 212 | if (mShiftKeys[0] != null) { |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 213 | return mShiftState != SHIFT_OFF; |
| 214 | } else { |
| 215 | return super.isShifted(); |
| 216 | } |
| 217 | } |
| 218 | |
Jim Miller | 0b31970 | 2010-02-05 18:51:59 -0800 | [diff] [blame] | 219 | static class LatinKey extends Keyboard.Key { |
| 220 | private boolean mShiftLockEnabled; |
| 221 | private boolean mEnabled = true; |
| 222 | |
| 223 | public LatinKey(Resources res, Keyboard.Row parent, int x, int y, |
| 224 | XmlResourceParser parser) { |
| 225 | super(res, parent, x, y, parser); |
| 226 | if (popupCharacters != null && popupCharacters.length() == 0) { |
| 227 | // If there is a keyboard with no keys specified in popupCharacters |
| 228 | popupResId = 0; |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | void setEnabled(boolean enabled) { |
| 233 | mEnabled = enabled; |
| 234 | } |
| 235 | |
| 236 | void enableShiftLock() { |
| 237 | mShiftLockEnabled = true; |
| 238 | } |
| 239 | |
| 240 | @Override |
| 241 | public void onReleased(boolean inside) { |
| 242 | if (!mShiftLockEnabled) { |
| 243 | super.onReleased(inside); |
| 244 | } else { |
| 245 | pressed = !pressed; |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Overriding this method so that we can reduce the target area for certain keys. |
| 251 | */ |
| 252 | @Override |
| 253 | public boolean isInside(int x, int y) { |
| 254 | if (!mEnabled) { |
| 255 | return false; |
| 256 | } |
| 257 | final int code = codes[0]; |
| 258 | if (code == KEYCODE_SHIFT || code == KEYCODE_DELETE) { |
| 259 | y -= height / 10; |
| 260 | if (code == KEYCODE_SHIFT) x += width / 6; |
| 261 | if (code == KEYCODE_DELETE) x -= width / 6; |
| 262 | } else if (code == KEYCODE_SPACE) { |
| 263 | y += PasswordEntryKeyboard.sSpacebarVerticalCorrection; |
| 264 | } |
| 265 | return super.isInside(x, y); |
| 266 | } |
| 267 | } |
| 268 | } |