зеркало из https://github.com/mozilla/gecko-dev.git
Bug 496360 part.1 Make TextChangeEvent of IMEContentObserver mergeable r=smaug
This commit is contained in:
Masayuki Nakano
Родитель
cce7014830
Коммит
d67dabd004
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@ -53,6 +53,9 @@ NS_IMPL_CYCLE_COLLECTING_RELEASE(IMEContentObserver)
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IMEContentObserver::IMEContentObserver()
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: mESM(nullptr)
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{
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#ifdef DEBUG
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TestMergingTextChangeData();
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#endif
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}
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void
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@ -348,25 +351,23 @@ class TextChangeEvent : public nsRunnable
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{
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public:
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TextChangeEvent(IMEContentObserver* aDispatcher,
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uint32_t aStart, uint32_t aOldEnd, uint32_t aNewEnd,
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bool aCausedByComposition)
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const IMEContentObserver::TextChangeData& aData)
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: mDispatcher(aDispatcher)
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, mStart(aStart)
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, mOldEnd(aOldEnd)
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, mNewEnd(aNewEnd)
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, mCausedByComposition(aCausedByComposition)
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, mData(aData)
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{
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MOZ_ASSERT(mDispatcher);
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MOZ_ASSERT(mData.mStored);
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}
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NS_IMETHOD Run()
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{
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if (mDispatcher->GetWidget()) {
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IMENotification notification(NOTIFY_IME_OF_TEXT_CHANGE);
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notification.mTextChangeData.mStartOffset = mStart;
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notification.mTextChangeData.mOldEndOffset = mOldEnd;
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notification.mTextChangeData.mNewEndOffset = mNewEnd;
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notification.mTextChangeData.mCausedByComposition = mCausedByComposition;
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notification.mTextChangeData.mStartOffset = mData.mStartOffset;
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notification.mTextChangeData.mOldEndOffset = mData.mRemovedEndOffset;
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notification.mTextChangeData.mNewEndOffset = mData.mAddedEndOffset;
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notification.mTextChangeData.mCausedByComposition =
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mData.mCausedOnlyByComposition;
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mDispatcher->GetWidget()->NotifyIME(notification);
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}
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return NS_OK;
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@ -374,10 +375,196 @@ public:
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private:
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nsRefPtr<IMEContentObserver> mDispatcher;
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uint32_t mStart, mOldEnd, mNewEnd;
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bool mCausedByComposition;
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IMEContentObserver::TextChangeData mData;
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};
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bool
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IMEContentObserver::StoreTextChangeData(const TextChangeData& aTextChangeData)
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{
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MOZ_ASSERT(aTextChangeData.mStartOffset <= aTextChangeData.mRemovedEndOffset,
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"end of removed text must be same or larger than start");
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MOZ_ASSERT(aTextChangeData.mStartOffset <= aTextChangeData.mAddedEndOffset,
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"end of added text must be same or larger than start");
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if (!mTextChangeData.mStored) {
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mTextChangeData = aTextChangeData;
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MOZ_ASSERT(mTextChangeData.mStored, "Why mStored is false?");
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return true;
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}
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// |mTextChangeData| should represent all modified text ranges and all
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// inserted text ranges.
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// |mStartOffset| and |mRemovedEndOffset| represent all replaced or removed
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// text ranges. I.e., mStartOffset should be the smallest offset of all
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// modified text ranges in old text. |mRemovedEndOffset| should be the
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// largest end offset in old text of all modified text ranges.
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// |mAddedEndOffset| represents the end offset of all inserted text ranges.
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// I.e., only this is an offset in new text.
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// In other words, between mStartOffset and |mRemovedEndOffset| of the
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// premodified text was already removed. And some text whose length is
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// |mAddedEndOffset - mStartOffset| is inserted to |mStartOffset|. I.e.,
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// this allows IME to mark dirty the modified text range with |mStartOffset|
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// and |mRemovedEndOffset| if IME stores all text of the focused editor and
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// to compute new text length with |mAddedEndOffset| and |mRemovedEndOffset|.
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// Additionally, IME can retrieve only the text between |mStartOffset| and
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// |mAddedEndOffset| for updating stored text.
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// For comparing new and old |mStartOffset|/|mRemovedEndOffset| values, they
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// should be adjusted to be in same text. The |newData.mStartOffset| and
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// |newData.mRemovedEndOffset| should be computed as in old text because
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// |mStartOffset| and |mRemovedEndOffset| represent the modified text range
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// in the old text but even if some text before the values of the newData
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// has already been modified, the values don't include the changes.
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// For comparing new and old |mAddedEndOffset| values, they should be
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// adjusted to be in same text. The |oldData.mAddedEndOffset| should be
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// computed as in the new text because |mAddedEndOffset| indicates the end
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// offset of inserted text in the new text but |oldData.mAddedEndOffset|
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// doesn't include any changes of the text before |newData.mAddedEndOffset|.
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const TextChangeData& newData = aTextChangeData;
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const TextChangeData oldData = mTextChangeData;
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mTextChangeData.mCausedOnlyByComposition =
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newData.mCausedOnlyByComposition && oldData.mCausedOnlyByComposition;
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if (newData.mStartOffset >= oldData.mAddedEndOffset) {
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// Case 1:
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// If new start is after old end offset of added text, it means that text
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// after the modified range is modified. Like:
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// added range of old change: +----------+
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// removed range of new change: +----------+
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// So, the old start offset is always the smaller offset.
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mTextChangeData.mStartOffset = oldData.mStartOffset;
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// The new end offset of removed text is moved by the old change and we
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// need to cancel the move of the old change for comparing the offsets in
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// same text because it doesn't make sensce to compare offsets in different
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// text.
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uint32_t newRemovedEndOffsetInOldText =
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newData.mRemovedEndOffset - oldData.Difference();
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mTextChangeData.mRemovedEndOffset =
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std::max(newRemovedEndOffsetInOldText, oldData.mRemovedEndOffset);
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// The new end offset of added text is always the larger offset.
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mTextChangeData.mAddedEndOffset = newData.mAddedEndOffset;
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return false;
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}
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if (newData.mStartOffset >= oldData.mStartOffset) {
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// If new start is in the modified range, it means that new data changes
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// a part or all of the range.
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mTextChangeData.mStartOffset = oldData.mStartOffset;
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if (newData.mRemovedEndOffset >= oldData.mAddedEndOffset) {
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// Case 2:
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// If new end of removed text is greater than old end of added text, it
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// means that all or a part of modified range modified again and text
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// after the modified range is also modified. Like:
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// added range of old change: +----------+
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// removed range of new change: +----------+
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// So, the new removed end offset is moved by the old change and we need
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// to cancel the move of the old change for comparing the offsets in the
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// same text because it doesn't make sense to compare the offsets in
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// different text.
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uint32_t newRemovedEndOffsetInOldText =
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newData.mRemovedEndOffset - oldData.Difference();
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mTextChangeData.mRemovedEndOffset =
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std::max(newRemovedEndOffsetInOldText, oldData.mRemovedEndOffset);
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// The old end of added text is replaced by new change. So, it should be
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// same as the new start. On the other hand, the new added end offset is
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// always same or larger. Therefore, the merged end offset of added
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// text should be the new end offset of added text.
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mTextChangeData.mAddedEndOffset = newData.mAddedEndOffset;
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return false;
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}
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// Case 3:
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// If new end of removed text is less than old end of added text, it means
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// that only a part of the modified range is modified again. Like:
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// added range of old change: +------------+
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// removed range of new change: +-----+
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// So, the new end offset of removed text should be same as the old end
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// offset of removed text. Therefore, the merged end offset of removed
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// text should be the old text change's |mRemovedEndOffset|.
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mTextChangeData.mRemovedEndOffset = oldData.mRemovedEndOffset;
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// The old end of added text is moved by new change. So, we need to cancel
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// the move of the new change for comparing the offsets in same text.
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uint32_t oldAddedEndOffsetInNewText =
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oldData.mAddedEndOffset + newData.Difference();
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mTextChangeData.mAddedEndOffset =
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std::max(newData.mAddedEndOffset, oldAddedEndOffsetInNewText);
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return false;
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}
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if (newData.mRemovedEndOffset >= oldData.mStartOffset) {
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// If new end of removed text is greater than old start (and new start is
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// less than old start), it means that a part of modified range is modified
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// again and some new text before the modified range is also modified.
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MOZ_ASSERT(newData.mStartOffset < oldData.mStartOffset,
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"new start offset should be less than old one here");
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mTextChangeData.mStartOffset = newData.mStartOffset;
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if (newData.mRemovedEndOffset >= oldData.mAddedEndOffset) {
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// Case 4:
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// If new end of removed text is greater than old end of added text, it
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// means that all modified text and text after the modified range is
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// modified. Like:
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// added range of old change: +----------+
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// removed range of new change: +------------------+
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// So, the new end of removed text is moved by the old change. Therefore,
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// we need to cancel the move of the old change for comparing the offsets
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// in same text because it doesn't make sense to compare the offsets in
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// different text.
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uint32_t newRemovedEndOffsetInOldText =
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newData.mRemovedEndOffset - oldData.Difference();
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mTextChangeData.mRemovedEndOffset =
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std::max(newRemovedEndOffsetInOldText, oldData.mRemovedEndOffset);
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// The old end of added text is replaced by new change. So, the old end
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// offset of added text is same as new text change's start offset. Then,
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// new change's end offset of added text is always same or larger than
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// it. Therefore, merged end offset of added text is always the new end
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// offset of added text.
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mTextChangeData.mAddedEndOffset = newData.mAddedEndOffset;
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return false;
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}
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// Case 5:
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// If new end of removed text is less than old end of added text, it
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// means that only a part of the modified range is modified again. Like:
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// added range of old change: +----------+
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// removed range of new change: +----------+
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// So, the new end of removed text should be same as old end of removed
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// text for preventing end of removed text to be modified. Therefore,
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// merged end offset of removed text is always the old end offset of removed
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// text.
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mTextChangeData.mRemovedEndOffset = oldData.mRemovedEndOffset;
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// The old end of added text is moved by this change. So, we need to
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// cancel the move of the new change for comparing the offsets in same text
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// because it doesn't make sense to compare the offsets in different text.
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uint32_t oldAddedEndOffsetInNewText =
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oldData.mAddedEndOffset + newData.Difference();
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mTextChangeData.mAddedEndOffset =
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std::max(newData.mAddedEndOffset, oldAddedEndOffsetInNewText);
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return false;
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}
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// Case 6:
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// Otherwise, i.e., both new end of added text and new start are less than
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// old start, text before the modified range is modified. Like:
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// added range of old change: +----------+
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// removed range of new change: +----------+
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MOZ_ASSERT(newData.mStartOffset < oldData.mStartOffset,
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"new start offset should be less than old one here");
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mTextChangeData.mStartOffset = newData.mStartOffset;
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MOZ_ASSERT(newData.mRemovedEndOffset < oldData.mRemovedEndOffset,
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"new removed end offset should be less than old one here");
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mTextChangeData.mRemovedEndOffset = oldData.mRemovedEndOffset;
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// The end of added text should be adjusted with the new difference.
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uint32_t oldAddedEndOffsetInNewText =
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oldData.mAddedEndOffset + newData.Difference();
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mTextChangeData.mAddedEndOffset =
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std::max(newData.mAddedEndOffset, oldAddedEndOffsetInNewText);
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return false;
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}
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void
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IMEContentObserver::CharacterDataChanged(nsIDocument* aDocument,
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nsIContent* aContent,
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@ -387,7 +574,7 @@ IMEContentObserver::CharacterDataChanged(nsIDocument* aDocument,
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"character data changed for non-text node");
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bool causedByComposition = IsEditorHandlingEventForComposition();
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if (causedByComposition &&
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if (!mTextChangeData.mStored && causedByComposition &&
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!mUpdatePreference.WantChangesCausedByComposition()) {
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return;
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}
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@ -404,8 +591,10 @@ IMEContentObserver::CharacterDataChanged(nsIDocument* aDocument,
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uint32_t oldEnd = offset + aInfo->mChangeEnd - aInfo->mChangeStart;
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uint32_t newEnd = offset + aInfo->mReplaceLength;
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nsContentUtils::AddScriptRunner(
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new TextChangeEvent(this, offset, oldEnd, newEnd, causedByComposition));
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TextChangeData data(offset, oldEnd, newEnd, causedByComposition);
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if (StoreTextChangeData(data)) {
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nsContentUtils::AddScriptRunner(new TextChangeEvent(this, mTextChangeData));
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}
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}
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void
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@ -414,7 +603,7 @@ IMEContentObserver::NotifyContentAdded(nsINode* aContainer,
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int32_t aEndIndex)
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{
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bool causedByComposition = IsEditorHandlingEventForComposition();
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if (causedByComposition &&
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if (!mTextChangeData.mStored && causedByComposition &&
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!mUpdatePreference.WantChangesCausedByComposition()) {
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return;
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}
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@ -438,9 +627,11 @@ IMEContentObserver::NotifyContentAdded(nsINode* aContainer,
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return;
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}
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nsContentUtils::AddScriptRunner(
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new TextChangeEvent(this, offset, offset, offset + addingLength,
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causedByComposition));
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TextChangeData data(offset, offset, offset + addingLength,
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causedByComposition);
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if (StoreTextChangeData(data)) {
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nsContentUtils::AddScriptRunner(new TextChangeEvent(this, mTextChangeData));
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}
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}
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void
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@ -471,7 +662,7 @@ IMEContentObserver::ContentRemoved(nsIDocument* aDocument,
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nsIContent* aPreviousSibling)
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{
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bool causedByComposition = IsEditorHandlingEventForComposition();
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if (causedByComposition &&
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if (!mTextChangeData.mStored && causedByComposition &&
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!mUpdatePreference.WantChangesCausedByComposition()) {
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return;
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}
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@ -501,9 +692,10 @@ IMEContentObserver::ContentRemoved(nsIDocument* aDocument,
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return;
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}
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nsContentUtils::AddScriptRunner(
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new TextChangeEvent(this, offset, offset + textLength, offset,
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causedByComposition));
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TextChangeData data(offset, offset + textLength, offset, causedByComposition);
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if (StoreTextChangeData(data)) {
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nsContentUtils::AddScriptRunner(new TextChangeEvent(this, mTextChangeData));
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}
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}
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static nsIContent*
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@ -536,7 +728,7 @@ IMEContentObserver::AttributeChanged(nsIDocument* aDocument,
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int32_t aModType)
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{
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bool causedByComposition = IsEditorHandlingEventForComposition();
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if (causedByComposition &&
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if (!mTextChangeData.mStored && causedByComposition &&
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!mUpdatePreference.WantChangesCausedByComposition()) {
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return;
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}
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@ -558,9 +750,462 @@ IMEContentObserver::AttributeChanged(nsIDocument* aDocument,
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LINE_BREAK_TYPE_NATIVE);
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NS_ENSURE_SUCCESS_VOID(rv);
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nsContentUtils::AddScriptRunner(
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new TextChangeEvent(this, start, start + mPreAttrChangeLength,
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start + postAttrChangeLength, causedByComposition));
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TextChangeData data(start, start + mPreAttrChangeLength,
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start + postAttrChangeLength, causedByComposition);
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if (StoreTextChangeData(data)) {
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nsContentUtils::AddScriptRunner(new TextChangeEvent(this, mTextChangeData));
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}
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}
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#ifdef DEBUG
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// Let's test the code of merging multiple text change data in debug build
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// and crash if one of them fails because this feature is very complex but
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// cannot be tested with mochitest.
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void
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IMEContentObserver::TestMergingTextChangeData()
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{
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static bool gTestTextChangeEvent = true;
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if (!gTestTextChangeEvent) {
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return;
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}
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gTestTextChangeEvent = false;
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/****************************************************************************
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* Case 1
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****************************************************************************/
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// Appending text
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StoreTextChangeData(TextChangeData(10, 10, 20, false));
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StoreTextChangeData(TextChangeData(20, 20, 35, false));
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MOZ_ASSERT(mTextChangeData.mStartOffset == 10,
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"Test 1-1-1: mStartOffset should be the first offset");
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MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 10, // 20 - (20 - 10)
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"Test 1-1-2: mRemovedEndOffset should be the first end of removed text");
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MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 35,
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"Test 1-1-3: mAddedEndOffset should be the last end of added text");
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mTextChangeData.mStored = false;
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// Removing text (longer line -> shorter line)
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StoreTextChangeData(TextChangeData(10, 20, 10, false));
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StoreTextChangeData(TextChangeData(10, 30, 10, false));
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MOZ_ASSERT(mTextChangeData.mStartOffset == 10,
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"Test 1-2-1: mStartOffset should be the first offset");
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MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 40, // 30 + (10 - 20)
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"Test 1-2-2: mRemovedEndOffset should be the the last end of removed text "
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"with already removed length");
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MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 10,
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"Test 1-2-3: mAddedEndOffset should be the last end of added text");
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mTextChangeData.mStored = false;
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// Removing text (shorter line -> longer line)
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StoreTextChangeData(TextChangeData(10, 20, 10, false));
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StoreTextChangeData(TextChangeData(10, 15, 10, false));
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MOZ_ASSERT(mTextChangeData.mStartOffset == 10,
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"Test 1-3-1: mStartOffset should be the first offset");
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MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 25, // 15 + (10 - 20)
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"Test 1-3-2: mRemovedEndOffset should be the the last end of removed text "
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"with already removed length");
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MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 10,
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"Test 1-3-3: mAddedEndOffset should be the last end of added text");
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mTextChangeData.mStored = false;
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// Appending text at different point (not sure if actually occurs)
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StoreTextChangeData(TextChangeData(10, 10, 20, false));
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StoreTextChangeData(TextChangeData(55, 55, 60, false));
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MOZ_ASSERT(mTextChangeData.mStartOffset == 10,
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"Test 1-4-1: mStartOffset should be the smallest offset");
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MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 45, // 55 - (10 - 20)
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"Test 1-4-2: mRemovedEndOffset should be the the largest end of removed "
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"text without already added length");
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MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 60,
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"Test 1-4-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Removing text at different point (not sure if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(10, 20, 10, false));
|
||||
StoreTextChangeData(TextChangeData(55, 68, 55, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 10,
|
||||
"Test 1-5-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 78, // 68 - (10 - 20)
|
||||
"Test 1-5-2: mRemovedEndOffset should be the the largest end of removed "
|
||||
"text with already removed length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 55,
|
||||
"Test 1-5-3: mAddedEndOffset should be the largest end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text and append text (becomes longer)
|
||||
StoreTextChangeData(TextChangeData(30, 35, 32, false));
|
||||
StoreTextChangeData(TextChangeData(32, 32, 40, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 30,
|
||||
"Test 1-6-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 35, // 32 - (32 - 35)
|
||||
"Test 1-6-2: mRemovedEndOffset should be the the first end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 40,
|
||||
"Test 1-6-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text and append text (becomes shorter)
|
||||
StoreTextChangeData(TextChangeData(30, 35, 32, false));
|
||||
StoreTextChangeData(TextChangeData(32, 32, 33, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 30,
|
||||
"Test 1-7-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 35, // 32 - (32 - 35)
|
||||
"Test 1-7-2: mRemovedEndOffset should be the the first end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 33,
|
||||
"Test 1-7-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Removing text and replacing text after first range (not sure if actually
|
||||
// occurs)
|
||||
StoreTextChangeData(TextChangeData(30, 35, 30, false));
|
||||
StoreTextChangeData(TextChangeData(32, 34, 48, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 30,
|
||||
"Test 1-8-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 39, // 34 - (30 - 35)
|
||||
"Test 1-8-2: mRemovedEndOffset should be the the first end of removed text "
|
||||
"without already removed text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 48,
|
||||
"Test 1-8-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Removing text and replacing text after first range (not sure if actually
|
||||
// occurs)
|
||||
StoreTextChangeData(TextChangeData(30, 35, 30, false));
|
||||
StoreTextChangeData(TextChangeData(32, 38, 36, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 30,
|
||||
"Test 1-9-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 43, // 38 - (30 - 35)
|
||||
"Test 1-9-2: mRemovedEndOffset should be the the first end of removed text "
|
||||
"without already removed text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 36,
|
||||
"Test 1-9-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
/****************************************************************************
|
||||
* Case 2
|
||||
****************************************************************************/
|
||||
|
||||
// Replacing text in around end of added text (becomes shorter) (not sure
|
||||
// if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 50, 55, false));
|
||||
StoreTextChangeData(TextChangeData(53, 60, 54, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 50,
|
||||
"Test 2-1-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 55, // 60 - (55 - 50)
|
||||
"Test 2-1-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"without already added text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 54,
|
||||
"Test 2-1-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text around end of added text (becomes longer) (not sure
|
||||
// if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 50, 55, false));
|
||||
StoreTextChangeData(TextChangeData(54, 62, 68, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 50,
|
||||
"Test 2-2-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 57, // 62 - (55 - 50)
|
||||
"Test 2-2-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"without already added text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 68,
|
||||
"Test 2-2-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text around end of replaced text (became shorter) (not sure if
|
||||
// actually occurs)
|
||||
StoreTextChangeData(TextChangeData(36, 48, 45, false));
|
||||
StoreTextChangeData(TextChangeData(43, 50, 49, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 36,
|
||||
"Test 2-3-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 53, // 50 - (45 - 48)
|
||||
"Test 2-3-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"without already removed text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 49,
|
||||
"Test 2-3-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text around end of replaced text (became longer) (not sure if
|
||||
// actually occurs)
|
||||
StoreTextChangeData(TextChangeData(36, 52, 53, false));
|
||||
StoreTextChangeData(TextChangeData(43, 68, 61, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 36,
|
||||
"Test 2-4-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 67, // 68 - (53 - 52)
|
||||
"Test 2-4-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"without already added text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 61,
|
||||
"Test 2-4-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
/****************************************************************************
|
||||
* Case 3
|
||||
****************************************************************************/
|
||||
|
||||
// Appending text in already added text (not sure if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(10, 10, 20, false));
|
||||
StoreTextChangeData(TextChangeData(15, 15, 30, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 10,
|
||||
"Test 3-1-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 10,
|
||||
"Test 3-1-2: mRemovedEndOffset should be the the first end of removed text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 35, // 20 + (30 - 15)
|
||||
"Test 3-1-3: mAddedEndOffset should be the first end of added text with "
|
||||
"added text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text in added text (not sure if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 50, 55, false));
|
||||
StoreTextChangeData(TextChangeData(52, 53, 56, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 50,
|
||||
"Test 3-2-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 50,
|
||||
"Test 3-2-2: mRemovedEndOffset should be the the first end of removed text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 58, // 55 + (56 - 53)
|
||||
"Test 3-2-3: mAddedEndOffset should be the first end of added text with "
|
||||
"added text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text in replaced text (became shorter) (not sure if actually
|
||||
// occurs)
|
||||
StoreTextChangeData(TextChangeData(36, 48, 45, false));
|
||||
StoreTextChangeData(TextChangeData(37, 38, 50, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 36,
|
||||
"Test 3-3-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 48,
|
||||
"Test 3-3-2: mRemovedEndOffset should be the the first end of removed text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 57, // 45 + (50 - 38)
|
||||
"Test 3-3-3: mAddedEndOffset should be the first end of added text with "
|
||||
"added text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text in replaced text (became longer) (not sure if actually
|
||||
// occurs)
|
||||
StoreTextChangeData(TextChangeData(32, 48, 53, false));
|
||||
StoreTextChangeData(TextChangeData(43, 50, 52, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 32,
|
||||
"Test 3-4-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 48,
|
||||
"Test 3-4-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"without already added text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 55, // 53 + (52 - 50)
|
||||
"Test 3-4-3: mAddedEndOffset should be the first end of added text with "
|
||||
"added text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text in replaced text (became shorter) (not sure if actually
|
||||
// occurs)
|
||||
StoreTextChangeData(TextChangeData(36, 48, 50, false));
|
||||
StoreTextChangeData(TextChangeData(37, 49, 47, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 36,
|
||||
"Test 3-5-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 48,
|
||||
"Test 3-5-2: mRemovedEndOffset should be the the first end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 48, // 50 + (47 - 49)
|
||||
"Test 3-5-3: mAddedEndOffset should be the first end of added text without "
|
||||
"removed text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text in replaced text (became longer) (not sure if actually
|
||||
// occurs)
|
||||
StoreTextChangeData(TextChangeData(32, 48, 53, false));
|
||||
StoreTextChangeData(TextChangeData(43, 50, 47, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 32,
|
||||
"Test 3-6-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 48,
|
||||
"Test 3-6-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"without already added text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 50, // 53 + (47 - 50)
|
||||
"Test 3-6-3: mAddedEndOffset should be the first end of added text without "
|
||||
"removed text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
/****************************************************************************
|
||||
* Case 4
|
||||
****************************************************************************/
|
||||
|
||||
// Replacing text all of already append text (not sure if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 50, 55, false));
|
||||
StoreTextChangeData(TextChangeData(44, 66, 68, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 44,
|
||||
"Test 4-1-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 61, // 66 - (55 - 50)
|
||||
"Test 4-1-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"without already added text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 68,
|
||||
"Test 4-1-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text around a point in which text was removed (not sure if
|
||||
// actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 62, 50, false));
|
||||
StoreTextChangeData(TextChangeData(44, 66, 68, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 44,
|
||||
"Test 4-2-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 78, // 66 - (50 - 62)
|
||||
"Test 4-2-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"without already removed text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 68,
|
||||
"Test 4-2-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text all replaced text (became shorter) (not sure if actually
|
||||
// occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 62, 60, false));
|
||||
StoreTextChangeData(TextChangeData(49, 128, 130, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 49,
|
||||
"Test 4-3-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 130, // 128 - (60 - 62)
|
||||
"Test 4-3-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"without already removed text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 130,
|
||||
"Test 4-3-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text all replaced text (became longer) (not sure if actually
|
||||
// occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 61, 73, false));
|
||||
StoreTextChangeData(TextChangeData(44, 100, 50, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 44,
|
||||
"Test 4-4-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 88, // 100 - (73 - 61)
|
||||
"Test 4-4-2: mRemovedEndOffset should be the the last end of removed text "
|
||||
"with already added text length");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 50,
|
||||
"Test 4-4-3: mAddedEndOffset should be the last end of added text");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
/****************************************************************************
|
||||
* Case 5
|
||||
****************************************************************************/
|
||||
|
||||
// Replacing text around start of added text (not sure if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 50, 55, false));
|
||||
StoreTextChangeData(TextChangeData(48, 52, 49, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 48,
|
||||
"Test 5-1-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 50,
|
||||
"Test 5-1-2: mRemovedEndOffset should be the the first end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 52, // 55 + (52 - 49)
|
||||
"Test 5-1-3: mAddedEndOffset should be the first end of added text with "
|
||||
"added text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text around start of replaced text (became shorter) (not sure if
|
||||
// actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 60, 58, false));
|
||||
StoreTextChangeData(TextChangeData(43, 50, 48, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 43,
|
||||
"Test 5-2-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 60,
|
||||
"Test 5-2-2: mRemovedEndOffset should be the the first end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 56, // 58 + (48 - 50)
|
||||
"Test 5-2-3: mAddedEndOffset should be the first end of added text without "
|
||||
"removed text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text around start of replaced text (became longer) (not sure if
|
||||
// actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 60, 68, false));
|
||||
StoreTextChangeData(TextChangeData(43, 55, 53, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 43,
|
||||
"Test 5-3-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 60,
|
||||
"Test 5-3-2: mRemovedEndOffset should be the the first end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 66, // 68 + (53 - 55)
|
||||
"Test 5-3-3: mAddedEndOffset should be the first end of added text without "
|
||||
"removed text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text around start of replaced text (became shorter) (not sure if
|
||||
// actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 60, 58, false));
|
||||
StoreTextChangeData(TextChangeData(43, 50, 128, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 43,
|
||||
"Test 5-4-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 60,
|
||||
"Test 5-4-2: mRemovedEndOffset should be the the first end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 136, // 58 + (128 - 50)
|
||||
"Test 5-4-3: mAddedEndOffset should be the first end of added text with "
|
||||
"added text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text around start of replaced text (became longer) (not sure if
|
||||
// actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 60, 68, false));
|
||||
StoreTextChangeData(TextChangeData(43, 55, 65, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 43,
|
||||
"Test 5-5-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 60,
|
||||
"Test 5-5-2: mRemovedEndOffset should be the the first end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 78, // 68 + (65 - 55)
|
||||
"Test 5-5-3: mAddedEndOffset should be the first end of added text with "
|
||||
"added text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
/****************************************************************************
|
||||
* Case 6
|
||||
****************************************************************************/
|
||||
|
||||
// Appending text before already added text (not sure if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(30, 30, 45, false));
|
||||
StoreTextChangeData(TextChangeData(10, 10, 20, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 10,
|
||||
"Test 6-1-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 30,
|
||||
"Test 6-1-2: mRemovedEndOffset should be the the largest end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 55, // 45 + (20 - 10)
|
||||
"Test 6-1-3: mAddedEndOffset should be the first end of added text with "
|
||||
"added text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Removing text before already removed text (not sure if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(30, 35, 30, false));
|
||||
StoreTextChangeData(TextChangeData(10, 25, 10, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 10,
|
||||
"Test 6-2-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 35,
|
||||
"Test 6-2-2: mRemovedEndOffset should be the the largest end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 15, // 30 - (25 - 10)
|
||||
"Test 6-2-3: mAddedEndOffset should be the first end of added text with "
|
||||
"removed text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text before already replaced text (not sure if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 65, 70, false));
|
||||
StoreTextChangeData(TextChangeData(13, 24, 15, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 13,
|
||||
"Test 6-3-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 65,
|
||||
"Test 6-3-2: mRemovedEndOffset should be the the largest end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 61, // 70 + (15 - 24)
|
||||
"Test 6-3-3: mAddedEndOffset should be the first end of added text without "
|
||||
"removed text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
|
||||
// Replacing text before already replaced text (not sure if actually occurs)
|
||||
StoreTextChangeData(TextChangeData(50, 65, 70, false));
|
||||
StoreTextChangeData(TextChangeData(13, 24, 36, false));
|
||||
MOZ_ASSERT(mTextChangeData.mStartOffset == 13,
|
||||
"Test 6-4-1: mStartOffset should be the smallest offset");
|
||||
MOZ_ASSERT(mTextChangeData.mRemovedEndOffset == 65,
|
||||
"Test 6-4-2: mRemovedEndOffset should be the the largest end of removed "
|
||||
"text");
|
||||
MOZ_ASSERT(mTextChangeData.mAddedEndOffset == 82, // 70 + (36 - 24)
|
||||
"Test 6-4-3: mAddedEndOffset should be the first end of added text without "
|
||||
"removed text length by the new change");
|
||||
mTextChangeData.mStored = false;
|
||||
}
|
||||
#endif // #ifdef DEBUG
|
||||
|
||||
} // namespace mozilla
|
||||
|
|
|
|||
|
|
@ -72,11 +72,64 @@ public:
|
|||
nsresult GetSelectionAndRoot(nsISelection** aSelection,
|
||||
nsIContent** aRoot) const;
|
||||
|
||||
struct TextChangeData
|
||||
{
|
||||
// mStartOffset is the start offset of modified or removed text in
|
||||
// original content and inserted text in new content.
|
||||
uint32_t mStartOffset;
|
||||
// mRemovalEndOffset is the end offset of modified or removed text in
|
||||
// original content. If the value is same as mStartOffset, no text hasn't
|
||||
// been removed yet.
|
||||
uint32_t mRemovedEndOffset;
|
||||
// mAddedEndOffset is the end offset of inserted text or same as
|
||||
// mStartOffset if just removed. The vlaue is offset in the new content.
|
||||
uint32_t mAddedEndOffset;
|
||||
|
||||
bool mCausedOnlyByComposition;
|
||||
bool mStored;
|
||||
|
||||
TextChangeData()
|
||||
: mStartOffset(0)
|
||||
, mRemovedEndOffset(0)
|
||||
, mAddedEndOffset(0)
|
||||
, mCausedOnlyByComposition(false)
|
||||
, mStored(false)
|
||||
{
|
||||
}
|
||||
|
||||
TextChangeData(uint32_t aStartOffset,
|
||||
uint32_t aRemovedEndOffset,
|
||||
uint32_t aAddedEndOffset,
|
||||
bool aCausedByComposition)
|
||||
: mStartOffset(aStartOffset)
|
||||
, mRemovedEndOffset(aRemovedEndOffset)
|
||||
, mAddedEndOffset(aAddedEndOffset)
|
||||
, mCausedOnlyByComposition(aCausedByComposition)
|
||||
, mStored(true)
|
||||
{
|
||||
MOZ_ASSERT(aRemovedEndOffset >= aStartOffset,
|
||||
"removed end offset must not be smaller than start offset");
|
||||
MOZ_ASSERT(aAddedEndOffset >= aStartOffset,
|
||||
"added end offset must not be smaller than start offset");
|
||||
}
|
||||
// Positive if text is added. Negative if text is removed.
|
||||
int64_t Difference() const
|
||||
{
|
||||
return mAddedEndOffset - mRemovedEndOffset;
|
||||
}
|
||||
};
|
||||
|
||||
private:
|
||||
~IMEContentObserver() {}
|
||||
|
||||
void NotifyContentAdded(nsINode* aContainer, int32_t aStart, int32_t aEnd);
|
||||
void ObserveEditableNode();
|
||||
// Returns true if there is no pending data.
|
||||
bool StoreTextChangeData(const TextChangeData& aTextChangeData);
|
||||
|
||||
#ifdef DEBUG
|
||||
void TestMergingTextChangeData();
|
||||
#endif
|
||||
|
||||
nsCOMPtr<nsIWidget> mWidget;
|
||||
nsCOMPtr<nsISelection> mSelection;
|
||||
|
|
@ -84,6 +137,8 @@ private:
|
|||
nsCOMPtr<nsINode> mEditableNode;
|
||||
nsCOMPtr<nsIDocShell> mDocShell;
|
||||
|
||||
TextChangeData mTextChangeData;
|
||||
|
||||
EventStateManager* mESM;
|
||||
|
||||
nsIMEUpdatePreference mUpdatePreference;
|
||||
|
|
|
|||
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