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Fix a bug where backspace would not delete the selection 

Bug: 5699301
Change-Id: I6c5a8470464d045349ac38e191c859b5c34cbeee
main
Jean Chalard 2012-01-24 15:45:32 +09:00
parent 470e50493a
commit 77da3d5a3b
1 changed files with 27 additions and 5 deletions
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32
java/src/com/android/inputmethod/latin/LatinIME.java
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@ -203,9 +203,11 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
private WordComposer mWordComposer = new WordComposer(); private WordComposer mWordComposer = new WordComposer();
private int mCorrectionMode; private int mCorrectionMode;
// Keep track of the last selection range to decide if we need to show word alternatives // Keep track of the last selection range to decide if we need to show word alternatives
private int mLastSelectionStart; private static final int NOT_A_CURSOR_POSITION = -1;
private int mLastSelectionEnd; private int mLastSelectionStart = NOT_A_CURSOR_POSITION;
private int mLastSelectionEnd = NOT_A_CURSOR_POSITION;
// Whether we are expecting an onUpdateSelection event to fire. If it does when we don't // Whether we are expecting an onUpdateSelection event to fire. If it does when we don't
// "expect" it, it means the user actually moved the cursor. // "expect" it, it means the user actually moved the cursor.
@ -1401,9 +1403,29 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
// inconsistent with backspacing after selecting other suggestions. // inconsistent with backspacing after selecting other suggestions.
restartSuggestionsOnManuallyPickedTypedWord(ic); restartSuggestionsOnManuallyPickedTypedWord(ic);
} else { } else {
ic.deleteSurroundingText(1, 0); // Here we must check whether there is a selection. If so we should remove the
if (mDeleteCount > DELETE_ACCELERATE_AT) { // selected text, otherwise we should just delete the character before the cursor.
ic.deleteSurroundingText(1, 0); if (mLastSelectionStart != mLastSelectionEnd) {
final int lengthToDelete = mLastSelectionEnd - mLastSelectionStart;
ic.setSelection(mLastSelectionEnd, mLastSelectionEnd);
ic.deleteSurroundingText(lengthToDelete, 0);
} else {
if (NOT_A_CURSOR_POSITION == mLastSelectionEnd) {
// We don't know whether there is a selection or not. We just send a false
// hardware key event and let TextView sort it out for us. The problem
// here is, this is asynchronous with respect to the input connection
// batch edit, so it may flicker. But this only ever happens if backspace
// is pressed just after the IME is invoked, and then again only once.
// TODO: add an API call that gets the selection indices. This is available
// to the IME in the general case via onUpdateSelection anyway, and would
// allow us to remove this race condition.
sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
} else {
ic.deleteSurroundingText(1, 0);
}
if (mDeleteCount > DELETE_ACCELERATE_AT) {
ic.deleteSurroundingText(1, 0);
}
} }
if (isSuggestionsRequested()) { if (isSuggestionsRequested()) {
restartSuggestionsOnWordBeforeCursorIfAtEndOfWord(ic); restartSuggestionsOnWordBeforeCursorIfAtEndOfWord(ic);