Source/WebCore/editing/ios/DictationCommandIOS.cpp

/*
 * Copyright (C) 2011 Apple Inc. All rights reserved.
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 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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#include "config.h"
#include "DictationCommandIOS.h"

#if PLATFORM(IOS_FAMILY)

#include "Document.h"
#include "DocumentMarkerController.h"
#include "Element.h"
#include "Position.h"
#include "Range.h"
#include "SmartReplace.h"
#include "TextIterator.h"
#include "VisibleUnits.h"

namespace WebCore {

DictationCommandIOS::DictationCommandIOS(Document& document, Vector<Vector<String>>&& dictationPhrases, RetainPtr<id> metadata)
    : CompositeEditCommand(document, EditAction::Dictation)
    , m_dictationPhrases(WTFMove(dictationPhrases))
    , m_metadata(WTFMove(metadata))
{
}

void DictationCommandIOS::doApply()
{
    VisiblePosition insertionPosition(startingSelection().visibleStart());

    unsigned resultLength = 0;
    for (auto& interpretations : m_dictationPhrases) {
        const String& firstInterpretation = interpretations[0];
        resultLength += firstInterpretation.length();
        inputText(firstInterpretation, true);

        if (interpretations.size() > 1)
            document().markers().addDictationPhraseWithAlternativesMarker(*endingSelection().toNormalizedRange(), interpretations);

        setEndingSelection(VisibleSelection(endingSelection().visibleEnd()));
    }

    VisiblePosition afterResults(endingSelection().visibleEnd());

    Element* root = afterResults.rootEditableElement();

    // FIXME: Add the result marker using a Position cached before results are inserted, instead of relying on TextIterators.
    auto rangeToEnd = Range::create(document(), createLegacyEditingPosition((Node *)root, 0), afterResults.deepEquivalent());
    int endIndex = TextIterator::rangeLength(rangeToEnd.ptr(), true);
    int startIndex = endIndex - resultLength;

    if (startIndex >= 0) {
        RefPtr<Range> resultRange = TextIterator::rangeFromLocationAndLength(document().documentElement(), startIndex, endIndex, true);
        ASSERT(resultRange); // FIXME: What guarantees this?
        document().markers().addDictationResultMarker(*resultRange, m_metadata);
    }
}

} // namespace WebCore

#endif // PLATFORM(IOS_FAMILY)