selection_modifier_line.cc | Explore in Territory

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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/core/editing/selection_modifier.h"

#include "third_party/blink/renderer/core/editing/editing_utilities.h"
#include "third_party/blink/renderer/core/editing/inline_box_position.h"
#include "third_party/blink/renderer/core/editing/visible_position.h"
#include "third_party/blink/renderer/core/editing/visible_units.h"
#include "third_party/blink/renderer/core/layout/geometry/logical_rect.h"
#include "third_party/blink/renderer/core/layout/inline/line_utils.h"

namespace blink {

namespace {

// TODO(1229581): Get rid of this.
class AbstractLineBox { … };

// static
AbstractLineBox AbstractLineBox::CreateFor(
    const PositionInFlatTreeWithAffinity& position) { … }

ContainerNode* HighestEditableRootOfNode(const Node& node) { … }

Node* PreviousNodeConsideringAtomicNodes(const Node& start) { … }

Node* NextNodeConsideringAtomicNodes(const Node& start) { … }

// Returns the previous leaf node or nullptr if there are no more. Delivers leaf
// nodes as if the whole DOM tree were a linear chain of its leaf nodes.
Node* PreviousAtomicLeafNode(const Node& start) { … }

// Returns the next leaf node or nullptr if there are no more. Delivers leaf
// nodes as if the whole DOM tree were a linear chain of its leaf nodes.
Node* NextAtomicLeafNode(const Node& start) { … }

Node* PreviousLeafWithSameEditability(const Node& node) { … }

Node* NextLeafWithGivenEditability(Node* node, bool editable) { … }

bool InSameLine(const Node& node,
                const PositionInFlatTreeWithAffinity& position) { … }

Node* FindNodeInPreviousLine(const Node& start_node,
                             const PositionInFlatTreeWithAffinity& position) { … }

// FIXME: consolidate with code in previousLinePosition.
PositionInFlatTree PreviousRootInlineBoxCandidatePosition(
    Node* node,
    const PositionInFlatTreeWithAffinity& position) { … }

PositionInFlatTree NextRootInlineBoxCandidatePosition(
    Node* node,
    const PositionInFlatTreeWithAffinity& position) { … }

}  // namespace

// static
PositionInFlatTreeWithAffinity SelectionModifier::PreviousLinePosition(
    const PositionInFlatTreeWithAffinity& position,
    LayoutUnit line_direction_point) { … }

// static
PositionInFlatTreeWithAffinity SelectionModifier::NextLinePosition(
    const PositionInFlatTreeWithAffinity& position,
    LayoutUnit line_direction_point) { … }

}  // namespace blink
chromium/third_party/blink/renderer/core/editing/selection_modifier_line.cc
