#include "config.h"
#include "SpellChecker.h"
#include "Document.h"
#include "DocumentMarkerController.h"
#include "Editing.h"
#include "Editor.h"
#include "Frame.h"
#include "Page.h"
#include "PositionIterator.h"
#include "RenderObject.h"
#include "Settings.h"
#include "TextCheckerClient.h"
#include "TextCheckingHelper.h"
namespace WebCore {
SpellCheckRequest::SpellCheckRequest(Ref<Range>&& checkingRange, Ref<Range>&& paragraphRange, const String& text, TextCheckingTypeMask mask, TextCheckingProcessType processType)
: m_checkingRange(WTFMove(checkingRange))
, m_paragraphRange(WTFMove(paragraphRange))
, m_rootEditableElement(m_checkingRange->startContainer().rootEditableElement())
, m_requestData(unrequestedTextCheckingSequence, text, mask, processType)
{
}
SpellCheckRequest::~SpellCheckRequest()
{
}
RefPtr<SpellCheckRequest> SpellCheckRequest::create(TextCheckingTypeMask textCheckingOptions, TextCheckingProcessType processType, Ref<Range>&& checkingRange, Ref<Range>&& paragraphRange)
{
String text = checkingRange->text();
if (!text.length())
return nullptr;
return adoptRef(*new SpellCheckRequest(WTFMove(checkingRange), WTFMove(paragraphRange), text, textCheckingOptions, processType));
}
const TextCheckingRequestData& SpellCheckRequest::data() const
{
return m_requestData;
}
void SpellCheckRequest::didSucceed(const Vector<TextCheckingResult>& results)
{
if (!m_checker)
return;
Ref<SpellCheckRequest> protectedThis(*this);
m_checker->didCheckSucceed(m_requestData.sequence(), results);
m_checker = nullptr;
}
void SpellCheckRequest::didCancel()
{
if (!m_checker)
return;
Ref<SpellCheckRequest> protectedThis(*this);
m_checker->didCheckCancel(m_requestData.sequence());
m_checker = nullptr;
}
void SpellCheckRequest::setCheckerAndSequence(SpellChecker* requester, int sequence)
{
ASSERT(!m_checker);
ASSERT(m_requestData.sequence() == unrequestedTextCheckingSequence);
m_checker = requester;
m_requestData.m_sequence = sequence;
}
void SpellCheckRequest::requesterDestroyed()
{
m_checker = nullptr;
}
SpellChecker::SpellChecker(Frame& frame)
: m_frame(frame)
, m_lastRequestSequence(0)
, m_lastProcessedSequence(0)
, m_timerToProcessQueuedRequest(*this, &SpellChecker::timerFiredToProcessQueuedRequest)
{
}
SpellChecker::~SpellChecker()
{
if (m_processingRequest)
m_processingRequest->requesterDestroyed();
for (auto& queue : m_requestQueue)
queue->requesterDestroyed();
}
TextCheckerClient* SpellChecker::client() const
{
Page* page = m_frame.page();
if (!page)
return nullptr;
return page->editorClient().textChecker();
}
void SpellChecker::timerFiredToProcessQueuedRequest()
{
ASSERT(!m_requestQueue.isEmpty());
if (m_requestQueue.isEmpty())
return;
invokeRequest(m_requestQueue.takeFirst());
}
bool SpellChecker::isAsynchronousEnabled() const
{
return m_frame.settings().asynchronousSpellCheckingEnabled();
}
bool SpellChecker::canCheckAsynchronously(Range& range) const
{
return client() && isCheckable(range) && isAsynchronousEnabled();
}
bool SpellChecker::isCheckable(Range& range) const
{
if (!range.firstNode() || !range.firstNode()->renderer())
return false;
const Node& node = range.startContainer();
if (is<Element>(node) && !downcast<Element>(node).isSpellCheckingEnabled())
return false;
return true;
}
void SpellChecker::requestCheckingFor(Ref<SpellCheckRequest>&& request)
{
if (!canCheckAsynchronously(request->paragraphRange()))
return;
ASSERT(request->data().sequence() == unrequestedTextCheckingSequence);
int sequence = ++m_lastRequestSequence;
if (sequence == unrequestedTextCheckingSequence)
sequence = ++m_lastRequestSequence;
request->setCheckerAndSequence(this, sequence);
if (m_timerToProcessQueuedRequest.isActive() || m_processingRequest) {
enqueueRequest(WTFMove(request));
return;
}
invokeRequest(WTFMove(request));
}
void SpellChecker::invokeRequest(Ref<SpellCheckRequest>&& request)
{
ASSERT(!m_processingRequest);
if (!client())
return;
m_processingRequest = WTFMove(request);
client()->requestCheckingOfString(*m_processingRequest, m_frame.selection().selection());
}
void SpellChecker::enqueueRequest(Ref<SpellCheckRequest>&& request)
{
for (auto& queue : m_requestQueue) {
if (request->rootEditableElement() != queue->rootEditableElement())
continue;
queue = WTFMove(request);
return;
}
m_requestQueue.append(WTFMove(request));
}
void SpellChecker::didCheck(int sequence, const Vector<TextCheckingResult>& results)
{
ASSERT(m_processingRequest);
ASSERT(m_processingRequest->data().sequence() == sequence);
if (m_processingRequest->data().sequence() != sequence) {
m_requestQueue.clear();
return;
}
m_frame.editor().markAndReplaceFor(*m_processingRequest, results);
if (m_lastProcessedSequence < sequence)
m_lastProcessedSequence = sequence;
m_processingRequest = nullptr;
if (!m_requestQueue.isEmpty())
m_timerToProcessQueuedRequest.startOneShot(0_s);
}
void SpellChecker::didCheckSucceed(int sequence, const Vector<TextCheckingResult>& results)
{
TextCheckingRequestData requestData = m_processingRequest->data();
if (requestData.sequence() == sequence) {
unsigned markers = 0;
if (requestData.mask() & TextCheckingTypeSpelling)
markers |= DocumentMarker::Spelling;
if (requestData.mask() & TextCheckingTypeGrammar)
markers |= DocumentMarker::Grammar;
if (markers)
m_frame.document()->markers().removeMarkers(&m_processingRequest->checkingRange(), markers);
}
didCheck(sequence, results);
}
void SpellChecker::didCheckCancel(int sequence)
{
didCheck(sequence, Vector<TextCheckingResult>());
}
}