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Bug 911951 part.4 Clear the wrong clause information and the caret information at failing to dispatch event r=smaug

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This commit is contained in:
Masayuki Nakano 2013-09-13 00:19:00 +09:00
parent ea79a53670
commit 312a2de128
1 changed files with 11 additions and 5 deletions
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16
dom/base/CompositionStringSynthesizer.cpp
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@ -117,13 +117,19 @@ CompositionStringSynthesizer::DispatchEvent(bool* aDefaultPrevented)
return NS_ERROR_DOM_SECURITY_ERR;
}
if (!mClauses.IsEmpty()) {
NS_ENSURE_TRUE(mClauses[mClauses.Length()-1].mEndOffset == mString.Length(),
NS_ERROR_ILLEGAL_VALUE);
if (!mClauses.IsEmpty() &&
mClauses[mClauses.Length()-1].mEndOffset != mString.Length()) {
NS_WARNING("Sum of length of the all clauses must be same as the string "
"length");
ClearInternal();
return NS_ERROR_ILLEGAL_VALUE;
}
if (mCaret.mRangeType == NS_TEXTRANGE_CARETPOSITION) {
NS_ENSURE_TRUE(mCaret.mEndOffset <= mString.Length(),
NS_ERROR_ILLEGAL_VALUE);
if (mCaret.mEndOffset > mString.Length()) {
NS_WARNING("Caret position is out of the composition string");
ClearInternal();
return NS_ERROR_ILLEGAL_VALUE;
}
mClauses.AppendElement(mCaret);
}