ExtractEditText.java revision a67a3cfc7c5db3b0a7710a75b57cd5360fce015a
115a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root/* 215a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * Copyright (C) 2008 The Android Open Source Project 315a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * 415a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * Licensed under the Apache License, Version 2.0 (the "License"); 515a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * you may not use this file except in compliance with the License. 615a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * You may obtain a copy of the License at 715a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * 815a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * http://www.apache.org/licenses/LICENSE-2.0 915a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * 1015a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * Unless required by applicable law or agreed to in writing, software 1115a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * distributed under the License is distributed on an "AS IS" BASIS, 1215a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1315a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * See the License for the specific language governing permissions and 1415a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * limitations under the License. 1515a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root */ 1615a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.inputmethodservice; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.ExtractedText; 22a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatokimport android.view.inputmethod.InputMethodManager; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.EditText; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/*** 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Specialization of {@link EditText} for showing and interacting with the 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extracted text in a full-screen input method. 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class ExtractEditText extends EditText { 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private InputMethodService mIME; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mSettingExtractedText; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ExtractEditText(Context context) { 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, null); 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ExtractEditText(Context context, AttributeSet attrs) { 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, com.android.internal.R.attr.editTextStyle); 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ExtractEditText(Context context, AttributeSet attrs, int defStyle) { 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void setIME(InputMethodService ime) { 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIME = ime; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Start making changes that will not be reported to the client. That 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is, {@link #onSelectionChanged(int, int)} will not result in sending 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the new selection to the client 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void startInternalChanges() { 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSettingExtractedText += 1; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Finish making changes that will not be reported to the client. That 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is, {@link #onSelectionChanged(int, int)} will not result in sending 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the new selection to the client 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void finishInternalChanges() { 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSettingExtractedText -= 1; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Implement just to keep track of when we are setting text from the 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * client (vs. seeing changes in ourself from the user). 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override public void setExtractedText(ExtractedText text) { 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSettingExtractedText++; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.setExtractedText(text); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } finally { 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSettingExtractedText--; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Report to the underlying text editor about selection changes. 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override protected void onSelectionChanged(int selStart, int selEnd) { 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSettingExtractedText == 0 && mIME != null && selStart >= 0 && selEnd >= 0) { 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIME.onExtractedSelectionChanged(selStart, selEnd); 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Redirect clicks to the IME for handling there. First allows any 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on click handler to run, though. 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override public boolean performClick() { 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!super.performClick() && mIME != null) { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIME.onExtractedTextClicked(); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override public boolean onTextContextMenuItem(int id) { 102459ac63adae54bafff2391f1f60c607f5deece4aGilles Debunne if (mIME != null && mIME.onExtractTextContextMenuItem(id)) { 103459ac63adae54bafff2391f1f60c607f5deece4aGilles Debunne return true; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onTextContextMenuItem(id); 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * We are always considered to be an input method target. 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 111e67b58a347109b444070a34e86e81ce119f266b3Gilles Debunne @Override 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isInputMethodTarget() { 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the edit text is currently showing a scroll bar. 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasVerticalScrollBar() { 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return computeVerticalScrollRange() > computeVerticalScrollExtent(); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Pretend like the window this view is in always has focus, so its 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * highlight and cursor will be displayed. 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override public boolean hasWindowFocus() { 128e67b58a347109b444070a34e86e81ce119f266b3Gilles Debunne return this.isEnabled(); 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Pretend like this view always has focus, so its 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * highlight and cursor will be displayed. 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override public boolean isFocused() { 136e67b58a347109b444070a34e86e81ce119f266b3Gilles Debunne return this.isEnabled(); 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Pretend like this view always has focus, so its 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * highlight and cursor will be displayed. 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override public boolean hasFocus() { 144e67b58a347109b444070a34e86e81ce119f266b3Gilles Debunne return this.isEnabled(); 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 146a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok 147a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok /** 148a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok * @hide 149a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok */ 150a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok @Override protected void viewClicked(InputMethodManager imm) { 151a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok // As an instance of this class is supposed to be owned by IMS, 152a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok // and it has a reference to the IMS (the current IME), 153a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok // we just need to call back its onViewClicked() here. 154a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok // It should be good to avoid unnecessary IPCs by doing this as well. 155a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok if (mIME != null) { 156a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok mIME.onViewClicked(false); 157a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok } 158a67a3cfc7c5db3b0a7710a75b57cd5360fce015asatok } 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 160