chromium/third_party/blink/renderer/core/editing/iterators/simplified_backwards_text_iterator.cc

/*
 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All
 * rights reserved.
 * Copyright (C) 2005 Alexey Proskuryakov.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "third_party/blink/renderer/core/editing/iterators/simplified_backwards_text_iterator.h"

#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/first_letter_pseudo_element.h"
#include "third_party/blink/renderer/core/editing/editing_utilities.h"
#include "third_party/blink/renderer/core/editing/ephemeral_range.h"
#include "third_party/blink/renderer/core/editing/iterators/text_iterator.h"
#include "third_party/blink/renderer/core/editing/position.h"
#include "third_party/blink/renderer/core/editing/visible_units.h"
#include "third_party/blink/renderer/core/html/forms/html_form_control_element.h"
#include "third_party/blink/renderer/core/layout/layout_text_fragment.h"

namespace blink {

static int CollapsedSpaceLength(LayoutText* layout_text, int text_end) { … }

static int MaxOffsetIncludingCollapsedSpaces(const Node* node) { … }

template <typename Strategy>
SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::
    SimplifiedBackwardsTextIteratorAlgorithm(
        const EphemeralRangeTemplate<Strategy>& range,
        const TextIteratorBehavior& behavior)
    : … { … }

template <typename Strategy>
void SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::Init(
    const Node* start_node,
    const Node* end_node,
    int start_offset,
    int end_offset) { … }

template <typename Strategy>
void SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::Advance() { … }

template <typename Strategy>
bool SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::HandleTextNode() { … }

template <typename Strategy>
LayoutText* SimplifiedBackwardsTextIteratorAlgorithm<
    Strategy>::HandleFirstLetter(int& start_offset, int& offset_in_node) { … }

template <typename Strategy>
bool SimplifiedBackwardsTextIteratorAlgorithm<
    Strategy>::HandleReplacedElement() { … }

template <typename Strategy>
bool SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::HandleNonTextNode() { … }

template <typename Strategy>
void SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::ExitNode() { … }

template <typename Strategy>
bool SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::AdvanceRespectingRange(
    const Node* next) { … }

template <typename Strategy>
void SimplifiedBackwardsTextIteratorAlgorithm<
    Strategy>::EnsurePositionContainer() const { … }

template <typename Strategy>
const Node* SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::StartContainer()
    const { … }

template <typename Strategy>
int SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::StartOffset() const { … }

template <typename Strategy>
int SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::EndOffset() const { … }

template <typename Strategy>
PositionTemplate<Strategy>
SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::StartPosition() const { … }

template <typename Strategy>
PositionTemplate<Strategy>
SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::EndPosition() const { … }

template <typename Strategy>
UChar SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::CharacterAt(
    unsigned index) const { … }

template class CORE_TEMPLATE_EXPORT
    SimplifiedBackwardsTextIteratorAlgorithm<EditingStrategy>;
template class CORE_TEMPLATE_EXPORT
    SimplifiedBackwardsTextIteratorAlgorithm<EditingInFlatTreeStrategy>;

}  // namespace blink