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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SUGGESTION_TEXT_SUGGESTION_CONTROLLER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SUGGESTION_TEXT_SUGGESTION_CONTROLLER_H_
#include <utility>
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/mojom/input/input_host.mojom-blink.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/document_shutdown_observer.h"
#include "third_party/blink/renderer/core/editing/forward.h"
#include "third_party/blink/renderer/core/editing/markers/document_marker.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
namespace blink {
class Document;
class DocumentMarker;
class LocalFrame;
struct TextSuggestionInfo;
// This class handles functionality related to displaying a menu of text
// suggestions (e.g. from spellcheck), and performing actions relating to those
// suggestions. Android is currently the only platform that has such a menu.
class CORE_EXPORT TextSuggestionController final
: public GarbageCollected<TextSuggestionController>,
public DocumentShutdownObserver {
USING_GARBAGE_COLLECTED_MIXIN(TextSuggestionController);
public:
explicit TextSuggestionController(LocalFrame&);
void DidAttachDocument(Document*);
bool IsMenuOpen() const;
void HandlePotentialSuggestionTap(const PositionInFlatTree& caret_position);
void ApplySpellCheckSuggestion(const String& suggestion);
void ApplyTextSuggestion(int32_t marker_tag, uint32_t suggestion_index);
void DeleteActiveSuggestionRange();
void OnNewWordAddedToDictionary(const String& word);
void OnSuggestionMenuClosed();
void SuggestionMenuTimeoutCallback(size_t max_number_of_suggestions);
void Trace(Visitor*) override;
private:
friend class TextSuggestionControllerTest;
Document& GetDocument() const;
bool IsAvailable() const;
LocalFrame& GetFrame() const;
std::pair<const Node*, const DocumentMarker*> FirstMarkerIntersectingRange(
const EphemeralRangeInFlatTree&,
DocumentMarker::MarkerTypes) const;
std::pair<const Node*, const DocumentMarker*> FirstMarkerTouchingSelection(
DocumentMarker::MarkerTypes) const;
void AttemptToDeleteActiveSuggestionRange();
void CallMojoShowTextSuggestionMenu(
const Vector<TextSuggestionInfo>& text_suggestion_infos,
const String& misspelled_word);
void ShowSpellCheckMenu(
const std::pair<const Text*, DocumentMarker*>& node_spelling_marker_pair);
void ShowSuggestionMenu(
const HeapVector<std::pair<Member<const Text>, Member<DocumentMarker>>>&
node_suggestion_marker_pairs,
size_t max_number_of_suggestions);
void ReplaceActiveSuggestionRange(const String&);
void ReplaceRangeWithText(const EphemeralRange&, const String& replacement);
bool is_suggestion_menu_open_;
const Member<LocalFrame> frame_;
mojo::Remote<mojom::blink::TextSuggestionHost> text_suggestion_host_;
DISALLOW_COPY_AND_ASSIGN(TextSuggestionController);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SUGGESTION_TEXT_SUGGESTION_CONTROLLER_H_
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