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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 LocalDOMWindow;
class IdleDeadline;
class SpellCheckRequester;
// This class is only supposed to be used by IdleSpellCheckController in cold
// mode invocation. Not to be confused with SpellCheckRequester. The class
// iteratively checks the editing host currently focused when the document is
// idle.
// See design doc for details: https://goo.gl/zONC3v
class ColdModeSpellCheckRequester
: public GarbageCollected<ColdModeSpellCheckRequester> {
public:
explicit ColdModeSpellCheckRequester(LocalDOMWindow&);
void SetNeedsMoreInvocationForTesting() {
needs_more_invocation_for_testing_ = true;
}
void Invoke(IdleDeadline*);
void ClearProgress();
bool FullyChecked() const;
void Trace(Visitor*);
private:
SpellCheckRequester& GetSpellCheckRequester() const;
const Element* CurrentFocusedEditable() const;
void RequestCheckingForNextChunk();
void SetHasFullyChecked();
// The window this cold mode checker belongs to.
const Member<LocalDOMWindow> window_;
// The root editable element checked in the last invocation. |nullptr| if not
// invoked yet or didn't find any root editable element to check.
Member<const Element> root_editable_;
// If |root_editable_| is non-null and hasn't been fully checked, the id of
// the last checked chunk and the remaining range to check;
// Otherwise, |kInvalidChunkIndex| and null.
int last_chunk_index_;
Member<Range> remaining_check_range_;
// 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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