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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_SPELLCHECK_COLD_MODE_SPELL_CHECK_REQUESTER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SPELLCHECK_COLD_MODE_SPELL_CHECK_REQUESTER_H_
#include "third_party/blink/renderer/core/editing/forward.h"
#include "third_party/blink/renderer/core/editing/position.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
namespace blink {
class Element;
class LocalFrame;
class IdleDeadline;
class SpellCheckRequester;
// This class is only supposed to be used by IdleSpellCheckCallback in cold mode
// invocation. Not to be confused with SpellCheckRequester.
// The class iteratively checks the editing host currently focused when the
// document is idle.
class ColdModeSpellCheckRequester
: public GarbageCollected<ColdModeSpellCheckRequester> {
public:
static ColdModeSpellCheckRequester* Create(LocalFrame&);
void SetNeedsMoreInvocationForTesting() {
needs_more_invocation_for_testing_ = true;
}
void Invoke(IdleDeadline*);
void ClearProgress();
bool FullyChecked() const;
void Trace(blink::Visitor*);
private:
explicit ColdModeSpellCheckRequester(LocalFrame&);
LocalFrame& GetFrame() const { return *frame_; }
SpellCheckRequester& GetSpellCheckRequester() const;
const Element* CurrentFocusedEditable() const;
void RequestCheckingForNextChunk();
// The LocalFrame this cold mode checker belongs to.
const Member<LocalFrame> frame_;
// The root editable element checked in the last invocation. |nullptr| if not
// invoked yet or nothing was checked in the last invocation.
Member<const Element> root_editable_;
// If the last invocation checked a chunk of text, the id and ending position
// of the chunk; Otherwise, |kInvalidChunkIndex| and null.
int last_chunk_index_;
Position last_chunk_end_;
// A test-only flag for forcing lifecycle advancing.
mutable bool needs_more_invocation_for_testing_;
DISALLOW_COPY_AND_ASSIGN(ColdModeSpellCheckRequester);
};
}
#endif
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