The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 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 android.view.inputmethod; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.res.TypedArray; |
| 21 | import android.os.Bundle; |
| 22 | import android.os.Handler; |
| 23 | import android.os.SystemClock; |
| 24 | import android.text.Editable; |
| 25 | import android.text.NoCopySpan; |
| 26 | import android.text.Selection; |
| 27 | import android.text.Spannable; |
| 28 | import android.text.SpannableStringBuilder; |
| 29 | import android.text.Spanned; |
| 30 | import android.text.TextUtils; |
| 31 | import android.text.method.MetaKeyKeyListener; |
| 32 | import android.util.Log; |
| 33 | import android.util.LogPrinter; |
| 34 | import android.view.KeyCharacterMap; |
| 35 | import android.view.KeyEvent; |
| 36 | import android.view.View; |
Joe Onorato | c6cc0f8 | 2011-04-12 11:53:13 -0700 | [diff] [blame] | 37 | import android.view.ViewAncestor; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 38 | |
| 39 | class ComposingText implements NoCopySpan { |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * Base class for implementors of the InputConnection interface, taking care |
| 44 | * of most of the common behavior for providing a connection to an Editable. |
| 45 | * Implementors of this class will want to be sure to implement |
| 46 | * {@link #getEditable} to provide access to their own editable object. |
| 47 | */ |
| 48 | public class BaseInputConnection implements InputConnection { |
| 49 | private static final boolean DEBUG = false; |
| 50 | private static final String TAG = "BaseInputConnection"; |
| 51 | static final Object COMPOSING = new ComposingText(); |
| 52 | |
| 53 | final InputMethodManager mIMM; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 54 | final View mTargetView; |
| 55 | final boolean mDummyMode; |
| 56 | |
| 57 | private Object[] mDefaultComposingSpans; |
| 58 | |
| 59 | Editable mEditable; |
| 60 | KeyCharacterMap mKeyCharacterMap; |
| 61 | |
Dianne Hackborn | 1bf5e22 | 2009-03-24 19:11:58 -0700 | [diff] [blame] | 62 | BaseInputConnection(InputMethodManager mgr, boolean fullEditor) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 63 | mIMM = mgr; |
| 64 | mTargetView = null; |
Dianne Hackborn | 1bf5e22 | 2009-03-24 19:11:58 -0700 | [diff] [blame] | 65 | mDummyMode = !fullEditor; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 66 | } |
| 67 | |
Dianne Hackborn | 1bf5e22 | 2009-03-24 19:11:58 -0700 | [diff] [blame] | 68 | public BaseInputConnection(View targetView, boolean fullEditor) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 69 | mIMM = (InputMethodManager)targetView.getContext().getSystemService( |
| 70 | Context.INPUT_METHOD_SERVICE); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 71 | mTargetView = targetView; |
Dianne Hackborn | 1bf5e22 | 2009-03-24 19:11:58 -0700 | [diff] [blame] | 72 | mDummyMode = !fullEditor; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | public static final void removeComposingSpans(Spannable text) { |
| 76 | text.removeSpan(COMPOSING); |
| 77 | Object[] sps = text.getSpans(0, text.length(), Object.class); |
| 78 | if (sps != null) { |
| 79 | for (int i=sps.length-1; i>=0; i--) { |
| 80 | Object o = sps[i]; |
| 81 | if ((text.getSpanFlags(o)&Spanned.SPAN_COMPOSING) != 0) { |
| 82 | text.removeSpan(o); |
| 83 | } |
| 84 | } |
| 85 | } |
| 86 | } |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 87 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 88 | public static void setComposingSpans(Spannable text) { |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 89 | setComposingSpans(text, 0, text.length()); |
| 90 | } |
| 91 | |
| 92 | /** @hide */ |
| 93 | public static void setComposingSpans(Spannable text, int start, int end) { |
| 94 | final Object[] sps = text.getSpans(start, end, Object.class); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 95 | if (sps != null) { |
| 96 | for (int i=sps.length-1; i>=0; i--) { |
| 97 | final Object o = sps[i]; |
| 98 | if (o == COMPOSING) { |
| 99 | text.removeSpan(o); |
| 100 | continue; |
| 101 | } |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 102 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 103 | final int fl = text.getSpanFlags(o); |
| 104 | if ((fl&(Spanned.SPAN_COMPOSING|Spanned.SPAN_POINT_MARK_MASK)) |
| 105 | != (Spanned.SPAN_COMPOSING|Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)) { |
| 106 | text.setSpan(o, text.getSpanStart(o), text.getSpanEnd(o), |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 107 | (fl & ~Spanned.SPAN_POINT_MARK_MASK) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 108 | | Spanned.SPAN_COMPOSING |
| 109 | | Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); |
| 110 | } |
| 111 | } |
| 112 | } |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 113 | |
| 114 | text.setSpan(COMPOSING, start, end, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 115 | Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING); |
| 116 | } |
| 117 | |
| 118 | public static int getComposingSpanStart(Spannable text) { |
| 119 | return text.getSpanStart(COMPOSING); |
| 120 | } |
| 121 | |
| 122 | public static int getComposingSpanEnd(Spannable text) { |
| 123 | return text.getSpanEnd(COMPOSING); |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Return the target of edit operations. The default implementation |
| 128 | * returns its own fake editable that is just used for composing text; |
| 129 | * subclasses that are real text editors should override this and |
| 130 | * supply their own. |
| 131 | */ |
| 132 | public Editable getEditable() { |
| 133 | if (mEditable == null) { |
| 134 | mEditable = Editable.Factory.getInstance().newEditable(""); |
| 135 | Selection.setSelection(mEditable, 0); |
| 136 | } |
| 137 | return mEditable; |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Default implementation does nothing. |
| 142 | */ |
| 143 | public boolean beginBatchEdit() { |
| 144 | return false; |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * Default implementation does nothing. |
| 149 | */ |
| 150 | public boolean endBatchEdit() { |
| 151 | return false; |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * Default implementation uses |
| 156 | * {@link MetaKeyKeyListener#clearMetaKeyState(long, int) |
| 157 | * MetaKeyKeyListener.clearMetaKeyState(long, int)} to clear the state. |
| 158 | */ |
| 159 | public boolean clearMetaKeyStates(int states) { |
| 160 | final Editable content = getEditable(); |
| 161 | if (content == null) return false; |
| 162 | MetaKeyKeyListener.clearMetaKeyState(content, states); |
| 163 | return true; |
| 164 | } |
| 165 | |
| 166 | /** |
Gilles Debunne | cf9cf2f | 2010-12-08 17:43:58 -0800 | [diff] [blame] | 167 | * Default implementation does nothing and returns false. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 168 | */ |
| 169 | public boolean commitCompletion(CompletionInfo text) { |
| 170 | return false; |
| 171 | } |
| 172 | |
| 173 | /** |
Gilles Debunne | cf9cf2f | 2010-12-08 17:43:58 -0800 | [diff] [blame] | 174 | * Default implementation does nothing and returns false. |
| 175 | */ |
| 176 | public boolean commitCorrection(CorrectionInfo correctionInfo) { |
| 177 | return false; |
| 178 | } |
| 179 | |
| 180 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 181 | * Default implementation replaces any existing composing text with |
| 182 | * the given text. In addition, only if dummy mode, a key event is |
| 183 | * sent for the new text and the current editable buffer cleared. |
| 184 | */ |
| 185 | public boolean commitText(CharSequence text, int newCursorPosition) { |
| 186 | if (DEBUG) Log.v(TAG, "commitText " + text); |
| 187 | replaceText(text, newCursorPosition, false); |
| 188 | sendCurrentText(); |
| 189 | return true; |
| 190 | } |
| 191 | |
| 192 | /** |
| 193 | * The default implementation performs the deletion around the current |
| 194 | * selection position of the editable text. |
| 195 | */ |
| 196 | public boolean deleteSurroundingText(int leftLength, int rightLength) { |
| 197 | if (DEBUG) Log.v(TAG, "deleteSurroundingText " + leftLength |
| 198 | + " / " + rightLength); |
| 199 | final Editable content = getEditable(); |
| 200 | if (content == null) return false; |
| 201 | |
| 202 | beginBatchEdit(); |
| 203 | |
| 204 | int a = Selection.getSelectionStart(content); |
| 205 | int b = Selection.getSelectionEnd(content); |
| 206 | |
| 207 | if (a > b) { |
| 208 | int tmp = a; |
| 209 | a = b; |
| 210 | b = tmp; |
| 211 | } |
| 212 | |
| 213 | // ignore the composing text. |
| 214 | int ca = getComposingSpanStart(content); |
| 215 | int cb = getComposingSpanEnd(content); |
| 216 | if (cb < ca) { |
| 217 | int tmp = ca; |
| 218 | ca = cb; |
| 219 | cb = tmp; |
| 220 | } |
| 221 | if (ca != -1 && cb != -1) { |
| 222 | if (ca < a) a = ca; |
| 223 | if (cb > b) b = cb; |
| 224 | } |
| 225 | |
| 226 | int deleted = 0; |
| 227 | |
| 228 | if (leftLength > 0) { |
| 229 | int start = a - leftLength; |
| 230 | if (start < 0) start = 0; |
| 231 | content.delete(start, a); |
| 232 | deleted = a - start; |
| 233 | } |
| 234 | |
| 235 | if (rightLength > 0) { |
| 236 | b = b - deleted; |
| 237 | |
| 238 | int end = b + rightLength; |
| 239 | if (end > content.length()) end = content.length(); |
| 240 | |
| 241 | content.delete(b, end); |
| 242 | } |
| 243 | |
| 244 | endBatchEdit(); |
| 245 | |
| 246 | return true; |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * The default implementation removes the composing state from the |
| 251 | * current editable text. In addition, only if dummy mode, a key event is |
| 252 | * sent for the new text and the current editable buffer cleared. |
| 253 | */ |
| 254 | public boolean finishComposingText() { |
| 255 | if (DEBUG) Log.v(TAG, "finishComposingText"); |
| 256 | final Editable content = getEditable(); |
| 257 | if (content != null) { |
| 258 | beginBatchEdit(); |
| 259 | removeComposingSpans(content); |
| 260 | endBatchEdit(); |
| 261 | sendCurrentText(); |
| 262 | } |
| 263 | return true; |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | * The default implementation uses TextUtils.getCapsMode to get the |
| 268 | * cursor caps mode for the current selection position in the editable |
| 269 | * text, unless in dummy mode in which case 0 is always returned. |
| 270 | */ |
| 271 | public int getCursorCapsMode(int reqModes) { |
| 272 | if (mDummyMode) return 0; |
| 273 | |
| 274 | final Editable content = getEditable(); |
| 275 | if (content == null) return 0; |
| 276 | |
| 277 | int a = Selection.getSelectionStart(content); |
| 278 | int b = Selection.getSelectionEnd(content); |
| 279 | |
| 280 | if (a > b) { |
| 281 | int tmp = a; |
| 282 | a = b; |
| 283 | b = tmp; |
| 284 | } |
| 285 | |
| 286 | return TextUtils.getCapsMode(content, a, reqModes); |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * The default implementation always returns null. |
| 291 | */ |
| 292 | public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { |
| 293 | return null; |
| 294 | } |
| 295 | |
| 296 | /** |
| 297 | * The default implementation returns the given amount of text from the |
| 298 | * current cursor position in the buffer. |
| 299 | */ |
| 300 | public CharSequence getTextBeforeCursor(int length, int flags) { |
| 301 | final Editable content = getEditable(); |
| 302 | if (content == null) return null; |
| 303 | |
| 304 | int a = Selection.getSelectionStart(content); |
| 305 | int b = Selection.getSelectionEnd(content); |
| 306 | |
| 307 | if (a > b) { |
| 308 | int tmp = a; |
| 309 | a = b; |
| 310 | b = tmp; |
| 311 | } |
| 312 | |
Dianne Hackborn | a465a17 | 2009-06-22 14:20:17 -0700 | [diff] [blame] | 313 | if (a <= 0) { |
| 314 | return ""; |
| 315 | } |
| 316 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 317 | if (length > a) { |
| 318 | length = a; |
| 319 | } |
| 320 | |
| 321 | if ((flags&GET_TEXT_WITH_STYLES) != 0) { |
| 322 | return content.subSequence(a - length, a); |
| 323 | } |
| 324 | return TextUtils.substring(content, a - length, a); |
| 325 | } |
| 326 | |
| 327 | /** |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 328 | * The default implementation returns the text currently selected, or null if none is |
| 329 | * selected. |
| 330 | */ |
| 331 | public CharSequence getSelectedText(int flags) { |
| 332 | final Editable content = getEditable(); |
| 333 | if (content == null) return null; |
| 334 | |
| 335 | int a = Selection.getSelectionStart(content); |
| 336 | int b = Selection.getSelectionEnd(content); |
| 337 | |
| 338 | if (a > b) { |
| 339 | int tmp = a; |
| 340 | a = b; |
| 341 | b = tmp; |
| 342 | } |
| 343 | |
| 344 | if (a == b) return null; |
| 345 | |
| 346 | if ((flags&GET_TEXT_WITH_STYLES) != 0) { |
| 347 | return content.subSequence(a, b); |
| 348 | } |
| 349 | return TextUtils.substring(content, a, b); |
| 350 | } |
| 351 | |
| 352 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 353 | * The default implementation returns the given amount of text from the |
| 354 | * current cursor position in the buffer. |
| 355 | */ |
| 356 | public CharSequence getTextAfterCursor(int length, int flags) { |
| 357 | final Editable content = getEditable(); |
| 358 | if (content == null) return null; |
| 359 | |
| 360 | int a = Selection.getSelectionStart(content); |
| 361 | int b = Selection.getSelectionEnd(content); |
| 362 | |
| 363 | if (a > b) { |
| 364 | int tmp = a; |
| 365 | a = b; |
| 366 | b = tmp; |
| 367 | } |
| 368 | |
Eric Fischer | 1127895 | 2010-03-08 16:38:03 -0800 | [diff] [blame] | 369 | // Guard against the case where the cursor has not been positioned yet. |
| 370 | if (b < 0) { |
| 371 | b = 0; |
| 372 | } |
| 373 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 374 | if (b + length > content.length()) { |
| 375 | length = content.length() - b; |
| 376 | } |
| 377 | |
| 378 | |
| 379 | if ((flags&GET_TEXT_WITH_STYLES) != 0) { |
| 380 | return content.subSequence(b, b + length); |
| 381 | } |
| 382 | return TextUtils.substring(content, b, b + length); |
| 383 | } |
| 384 | |
| 385 | /** |
Dianne Hackborn | 86d56cc | 2009-06-29 12:00:39 -0700 | [diff] [blame] | 386 | * The default implementation turns this into the enter key. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 387 | */ |
| 388 | public boolean performEditorAction(int actionCode) { |
Dianne Hackborn | 86d56cc | 2009-06-29 12:00:39 -0700 | [diff] [blame] | 389 | long eventTime = SystemClock.uptimeMillis(); |
| 390 | sendKeyEvent(new KeyEvent(eventTime, eventTime, |
Jeff Brown | 6b53e8d | 2010-11-10 16:03:06 -0800 | [diff] [blame] | 391 | KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, |
| 392 | KeyCharacterMap.VIRTUAL_KEYBOARD, 0, |
Dianne Hackborn | 86d56cc | 2009-06-29 12:00:39 -0700 | [diff] [blame] | 393 | KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE |
| 394 | | KeyEvent.FLAG_EDITOR_ACTION)); |
| 395 | sendKeyEvent(new KeyEvent(SystemClock.uptimeMillis(), eventTime, |
Jeff Brown | 6b53e8d | 2010-11-10 16:03:06 -0800 | [diff] [blame] | 396 | KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, |
| 397 | KeyCharacterMap.VIRTUAL_KEYBOARD, 0, |
Dianne Hackborn | 86d56cc | 2009-06-29 12:00:39 -0700 | [diff] [blame] | 398 | KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE |
| 399 | | KeyEvent.FLAG_EDITOR_ACTION)); |
| 400 | return true; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 401 | } |
| 402 | |
| 403 | /** |
| 404 | * The default implementation does nothing. |
| 405 | */ |
| 406 | public boolean performContextMenuAction(int id) { |
| 407 | return false; |
| 408 | } |
| 409 | |
| 410 | /** |
| 411 | * The default implementation does nothing. |
| 412 | */ |
| 413 | public boolean performPrivateCommand(String action, Bundle data) { |
| 414 | return false; |
| 415 | } |
| 416 | |
| 417 | /** |
| 418 | * The default implementation places the given text into the editable, |
| 419 | * replacing any existing composing text. The new text is marked as |
| 420 | * in a composing state with the composing style. |
| 421 | */ |
| 422 | public boolean setComposingText(CharSequence text, int newCursorPosition) { |
| 423 | if (DEBUG) Log.v(TAG, "setComposingText " + text); |
| 424 | replaceText(text, newCursorPosition, true); |
| 425 | return true; |
| 426 | } |
| 427 | |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 428 | public boolean setComposingRegion(int start, int end) { |
| 429 | final Editable content = getEditable(); |
| 430 | if (content != null) { |
| 431 | beginBatchEdit(); |
| 432 | removeComposingSpans(content); |
| 433 | int a = start; |
| 434 | int b = end; |
| 435 | if (a > b) { |
| 436 | int tmp = a; |
| 437 | a = b; |
| 438 | b = tmp; |
| 439 | } |
Amith Yamasani | 4198918 | 2010-09-22 16:58:13 -0700 | [diff] [blame] | 440 | // Clip the end points to be within the content bounds. |
| 441 | final int length = content.length(); |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 442 | if (a < 0) a = 0; |
Amith Yamasani | 4198918 | 2010-09-22 16:58:13 -0700 | [diff] [blame] | 443 | if (b < 0) b = 0; |
| 444 | if (a > length) a = length; |
| 445 | if (b > length) b = length; |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 446 | |
| 447 | ensureDefaultComposingSpans(); |
| 448 | if (mDefaultComposingSpans != null) { |
| 449 | for (int i = 0; i < mDefaultComposingSpans.length; ++i) { |
| 450 | content.setSpan(mDefaultComposingSpans[i], a, b, |
| 451 | Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING); |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | content.setSpan(COMPOSING, a, b, |
| 456 | Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING); |
| 457 | |
| 458 | endBatchEdit(); |
| 459 | sendCurrentText(); |
| 460 | } |
| 461 | return true; |
| 462 | } |
| 463 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 464 | /** |
| 465 | * The default implementation changes the selection position in the |
| 466 | * current editable text. |
| 467 | */ |
| 468 | public boolean setSelection(int start, int end) { |
| 469 | if (DEBUG) Log.v(TAG, "setSelection " + start + ", " + end); |
| 470 | final Editable content = getEditable(); |
| 471 | if (content == null) return false; |
| 472 | int len = content.length(); |
| 473 | if (start > len || end > len) { |
| 474 | // If the given selection is out of bounds, just ignore it. |
| 475 | // Most likely the text was changed out from under the IME, |
| 476 | // the the IME is going to have to update all of its state |
| 477 | // anyway. |
| 478 | return true; |
| 479 | } |
The Android Open Source Project | b2a3dd8 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 480 | if (start == end && MetaKeyKeyListener.getMetaState(content, |
| 481 | MetaKeyKeyListener.META_SELECTING) != 0) { |
| 482 | // If we are in selection mode, then we want to extend the |
| 483 | // selection instead of replacing it. |
| 484 | Selection.extendSelection(content, start); |
| 485 | } else { |
| 486 | Selection.setSelection(content, start, end); |
| 487 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 488 | return true; |
| 489 | } |
| 490 | |
| 491 | /** |
| 492 | * Provides standard implementation for sending a key event to the window |
| 493 | * attached to the input connection's view. |
| 494 | */ |
| 495 | public boolean sendKeyEvent(KeyEvent event) { |
| 496 | synchronized (mIMM.mH) { |
Dianne Hackborn | 1bf5e22 | 2009-03-24 19:11:58 -0700 | [diff] [blame] | 497 | Handler h = mTargetView != null ? mTargetView.getHandler() : null; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 498 | if (h == null) { |
| 499 | if (mIMM.mServedView != null) { |
| 500 | h = mIMM.mServedView.getHandler(); |
| 501 | } |
| 502 | } |
| 503 | if (h != null) { |
Joe Onorato | c6cc0f8 | 2011-04-12 11:53:13 -0700 | [diff] [blame] | 504 | h.sendMessage(h.obtainMessage(ViewAncestor.DISPATCH_KEY_FROM_IME, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 505 | event)); |
| 506 | } |
| 507 | } |
| 508 | return false; |
| 509 | } |
| 510 | |
| 511 | /** |
| 512 | * Updates InputMethodManager with the current fullscreen mode. |
| 513 | */ |
| 514 | public boolean reportFullscreenMode(boolean enabled) { |
| 515 | mIMM.setFullscreenMode(enabled); |
| 516 | return true; |
| 517 | } |
| 518 | |
| 519 | private void sendCurrentText() { |
| 520 | if (!mDummyMode) { |
| 521 | return; |
| 522 | } |
| 523 | |
| 524 | Editable content = getEditable(); |
| 525 | if (content != null) { |
| 526 | final int N = content.length(); |
| 527 | if (N == 0) { |
| 528 | return; |
| 529 | } |
| 530 | if (N == 1) { |
| 531 | // If it's 1 character, we have a chance of being |
| 532 | // able to generate normal key events... |
| 533 | if (mKeyCharacterMap == null) { |
Jeff Brown | 6b53e8d | 2010-11-10 16:03:06 -0800 | [diff] [blame] | 534 | mKeyCharacterMap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 535 | } |
| 536 | char[] chars = new char[1]; |
| 537 | content.getChars(0, 1, chars, 0); |
| 538 | KeyEvent[] events = mKeyCharacterMap.getEvents(chars); |
| 539 | if (events != null) { |
| 540 | for (int i=0; i<events.length; i++) { |
| 541 | if (DEBUG) Log.v(TAG, "Sending: " + events[i]); |
| 542 | sendKeyEvent(events[i]); |
| 543 | } |
| 544 | content.clear(); |
| 545 | return; |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | // Otherwise, revert to the special key event containing |
| 550 | // the actual characters. |
| 551 | KeyEvent event = new KeyEvent(SystemClock.uptimeMillis(), |
Jeff Brown | 6b53e8d | 2010-11-10 16:03:06 -0800 | [diff] [blame] | 552 | content.toString(), KeyCharacterMap.VIRTUAL_KEYBOARD, 0); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 553 | sendKeyEvent(event); |
| 554 | content.clear(); |
| 555 | } |
| 556 | } |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 557 | |
| 558 | private void ensureDefaultComposingSpans() { |
| 559 | if (mDefaultComposingSpans == null) { |
| 560 | Context context; |
| 561 | if (mTargetView != null) { |
| 562 | context = mTargetView.getContext(); |
| 563 | } else if (mIMM.mServedView != null) { |
| 564 | context = mIMM.mServedView.getContext(); |
| 565 | } else { |
| 566 | context = null; |
| 567 | } |
| 568 | if (context != null) { |
| 569 | TypedArray ta = context.getTheme() |
| 570 | .obtainStyledAttributes(new int[] { |
| 571 | com.android.internal.R.attr.candidatesTextStyleSpans |
| 572 | }); |
| 573 | CharSequence style = ta.getText(0); |
| 574 | ta.recycle(); |
| 575 | if (style != null && style instanceof Spanned) { |
| 576 | mDefaultComposingSpans = ((Spanned)style).getSpans( |
| 577 | 0, style.length(), Object.class); |
| 578 | } |
| 579 | } |
| 580 | } |
| 581 | } |
| 582 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 583 | private void replaceText(CharSequence text, int newCursorPosition, |
| 584 | boolean composing) { |
| 585 | final Editable content = getEditable(); |
| 586 | if (content == null) { |
| 587 | return; |
| 588 | } |
| 589 | |
| 590 | beginBatchEdit(); |
| 591 | |
| 592 | // delete composing text set previously. |
| 593 | int a = getComposingSpanStart(content); |
| 594 | int b = getComposingSpanEnd(content); |
| 595 | |
| 596 | if (DEBUG) Log.v(TAG, "Composing span: " + a + " to " + b); |
| 597 | |
| 598 | if (b < a) { |
| 599 | int tmp = a; |
| 600 | a = b; |
| 601 | b = tmp; |
| 602 | } |
| 603 | |
| 604 | if (a != -1 && b != -1) { |
| 605 | removeComposingSpans(content); |
| 606 | } else { |
| 607 | a = Selection.getSelectionStart(content); |
| 608 | b = Selection.getSelectionEnd(content); |
Dianne Hackborn | a465a17 | 2009-06-22 14:20:17 -0700 | [diff] [blame] | 609 | if (a < 0) a = 0; |
| 610 | if (b < 0) b = 0; |
| 611 | if (b < a) { |
| 612 | int tmp = a; |
| 613 | a = b; |
| 614 | b = tmp; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 615 | } |
| 616 | } |
| 617 | |
| 618 | if (composing) { |
| 619 | Spannable sp = null; |
| 620 | if (!(text instanceof Spannable)) { |
| 621 | sp = new SpannableStringBuilder(text); |
| 622 | text = sp; |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 623 | ensureDefaultComposingSpans(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 624 | if (mDefaultComposingSpans != null) { |
| 625 | for (int i = 0; i < mDefaultComposingSpans.length; ++i) { |
| 626 | sp.setSpan(mDefaultComposingSpans[i], 0, sp.length(), |
Amith Yamasani | a90b7f0 | 2010-08-25 18:27:20 -0700 | [diff] [blame] | 627 | Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 628 | } |
| 629 | } |
| 630 | } else { |
| 631 | sp = (Spannable)text; |
| 632 | } |
| 633 | setComposingSpans(sp); |
| 634 | } |
| 635 | |
| 636 | if (DEBUG) Log.v(TAG, "Replacing from " + a + " to " + b + " with \"" |
| 637 | + text + "\", composing=" + composing |
| 638 | + ", type=" + text.getClass().getCanonicalName()); |
| 639 | |
| 640 | if (DEBUG) { |
| 641 | LogPrinter lp = new LogPrinter(Log.VERBOSE, TAG); |
| 642 | lp.println("Current text:"); |
| 643 | TextUtils.dumpSpans(content, lp, " "); |
| 644 | lp.println("Composing text:"); |
| 645 | TextUtils.dumpSpans(text, lp, " "); |
| 646 | } |
satok | e3797a1 | 2011-03-22 06:34:48 +0900 | [diff] [blame] | 647 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 648 | // Position the cursor appropriately, so that after replacing the |
| 649 | // desired range of text it will be located in the correct spot. |
| 650 | // This allows us to deal with filters performing edits on the text |
| 651 | // we are providing here. |
| 652 | if (newCursorPosition > 0) { |
| 653 | newCursorPosition += b - 1; |
| 654 | } else { |
| 655 | newCursorPosition += a; |
| 656 | } |
| 657 | if (newCursorPosition < 0) newCursorPosition = 0; |
| 658 | if (newCursorPosition > content.length()) |
| 659 | newCursorPosition = content.length(); |
| 660 | Selection.setSelection(content, newCursorPosition); |
| 661 | |
| 662 | content.replace(a, b, text); |
| 663 | |
| 664 | if (DEBUG) { |
| 665 | LogPrinter lp = new LogPrinter(Log.VERBOSE, TAG); |
| 666 | lp.println("Final text:"); |
| 667 | TextUtils.dumpSpans(content, lp, " "); |
| 668 | } |
| 669 | |
| 670 | endBatchEdit(); |
| 671 | } |
| 672 | } |