1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights
* reserved.
*
* 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.
*/
// Copyright 2018 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.
#include "third_party/blink/renderer/core/editing/local_caret_rect.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/ng_flat_tree_shorthands.h"
#include "third_party/blink/renderer/core/editing/position_with_affinity.h"
#include "third_party/blink/renderer/core/editing/visible_position.h"
#include "third_party/blink/renderer/core/layout/api/line_layout_api_shim.h"
#include "third_party/blink/renderer/core/layout/line/inline_text_box.h"
#include "third_party/blink/renderer/core/layout/line/root_inline_box.h"
#include "third_party/blink/renderer/core/layout/ng/inline/ng_caret_rect.h"
#include "third_party/blink/renderer/core/layout/ng/inline/ng_offset_mapping.h"
namespace blink {
namespace {
template <typename Strategy>
LocalCaretRect LocalCaretRectOfPositionTemplate(
const PositionWithAffinityTemplate<Strategy>& position,
LayoutUnit* extra_width_to_end_of_line) {
if (position.IsNull())
return LocalCaretRect();
Node* const node = position.AnchorNode();
LayoutObject* const layout_object = node->GetLayoutObject();
if (!layout_object)
return LocalCaretRect();
const PositionWithAffinityTemplate<Strategy>& adjusted =
ComputeInlineAdjustedPosition(position);
if (adjusted.IsNotNull()) {
if (NGInlineFormattingContextOf(adjusted.GetPosition()))
return ComputeNGLocalCaretRect(adjusted);
const InlineBoxPosition& box_position =
ComputeInlineBoxPositionForInlineAdjustedPosition(adjusted);
if (box_position.inline_box) {
const LayoutObject* box_layout_object =
LineLayoutAPIShim::LayoutObjectFrom(
box_position.inline_box->GetLineLayoutItem());
return LocalCaretRect(
box_layout_object,
box_layout_object->PhysicalLocalCaretRect(
box_position.inline_box, box_position.offset_in_box,
extra_width_to_end_of_line));
}
}
// DeleteSelectionCommandTest.deleteListFromTable goes here.
return LocalCaretRect(
layout_object, layout_object->PhysicalLocalCaretRect(
nullptr, position.GetPosition().ComputeEditingOffset(),
extra_width_to_end_of_line));
}
// This function was added because the caret rect that is calculated by
// using the line top value instead of the selection top.
template <typename Strategy>
LocalCaretRect LocalSelectionRectOfPositionTemplate(
const PositionWithAffinityTemplate<Strategy>& position) {
if (position.IsNull())
return LocalCaretRect();
Node* const node = position.AnchorNode();
if (!node->GetLayoutObject())
return LocalCaretRect();
const PositionWithAffinityTemplate<Strategy>& adjusted =
ComputeInlineAdjustedPosition(position);
if (adjusted.IsNull())
return LocalCaretRect();
if (NGInlineFormattingContextOf(adjusted.GetPosition())) {
return ComputeNGLocalSelectionRect(adjusted);
}
const InlineBoxPosition& box_position =
ComputeInlineBoxPositionForInlineAdjustedPosition(adjusted);
if (!box_position.inline_box)
return LocalCaretRect();
LayoutObject* const layout_object = LineLayoutAPIShim::LayoutObjectFrom(
box_position.inline_box->GetLineLayoutItem());
LayoutRect rect = layout_object->LocalCaretRect(box_position.inline_box,
box_position.offset_in_box);
if (rect.IsEmpty())
return LocalCaretRect();
const InlineBox* const box = box_position.inline_box;
if (layout_object->IsHorizontalWritingMode()) {
rect.SetY(box->Root().SelectionTop());
rect.SetHeight(box->Root().SelectionHeight());
} else {
rect.SetX(box->Root().SelectionTop());
rect.SetHeight(box->Root().SelectionHeight());
}
return LocalCaretRect(layout_object, layout_object->FlipForWritingMode(rect));
}
} // namespace
LocalCaretRect LocalCaretRectOfPosition(
const PositionWithAffinity& position,
LayoutUnit* extra_width_to_end_of_line) {
return LocalCaretRectOfPositionTemplate<EditingStrategy>(
position, extra_width_to_end_of_line);
}
LocalCaretRect LocalCaretRectOfPosition(
const PositionInFlatTreeWithAffinity& position) {
return LocalCaretRectOfPositionTemplate<EditingInFlatTreeStrategy>(position,
nullptr);
}
LocalCaretRect LocalSelectionRectOfPosition(
const PositionWithAffinity& position) {
return LocalSelectionRectOfPositionTemplate<EditingStrategy>(position);
}
// ----
template <typename Strategy>
static IntRect AbsoluteCaretBoundsOfAlgorithm(
const PositionWithAffinityTemplate<Strategy>& position,
LayoutUnit* extra_width_to_end_of_line = nullptr) {
const LocalCaretRect& caret_rect = LocalCaretRectOfPositionTemplate<Strategy>(
position, extra_width_to_end_of_line);
if (caret_rect.IsEmpty())
return IntRect();
return LocalToAbsoluteQuadOf(caret_rect).EnclosingBoundingBox();
}
IntRect AbsoluteCaretBoundsOf(const PositionWithAffinity& position,
LayoutUnit* extra_width_to_end_of_line) {
return AbsoluteCaretBoundsOfAlgorithm<EditingStrategy>(
position, extra_width_to_end_of_line);
}
template <typename Strategy>
static IntRect AbsoluteSelectionBoundsOfAlgorithm(
const VisiblePositionTemplate<Strategy>& visible_position) {
DCHECK(visible_position.IsValid()) << visible_position;
const LocalCaretRect& caret_rect =
LocalSelectionRectOfPosition(visible_position.ToPositionWithAffinity());
if (caret_rect.IsEmpty())
return IntRect();
return LocalToAbsoluteQuadOf(caret_rect).EnclosingBoundingBox();
}
IntRect AbsoluteSelectionBoundsOf(const VisiblePosition& visible_position) {
return AbsoluteSelectionBoundsOfAlgorithm<EditingStrategy>(visible_position);
}
IntRect AbsoluteCaretBoundsOf(const PositionInFlatTreeWithAffinity& position) {
return AbsoluteCaretBoundsOfAlgorithm<EditingInFlatTreeStrategy>(position);
}
} // namespace blink
|
