1 | /* |
2 | * Copyright (C) 2014 Igalia S.L. |
3 | * Copyright (C) 2017 Apple Inc. All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * |
9 | * 1. Redistributions of source code must retain the above |
10 | * copyright notice, this list of conditions and the following |
11 | * disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above |
13 | * copyright notice, this list of conditions and the following |
14 | * disclaimer in the documentation and/or other materials |
15 | * provided with the distribution. |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY |
18 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
20 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE |
21 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
22 | * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
23 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
24 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
26 | * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
27 | * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
28 | * SUCH DAMAGE. |
29 | */ |
30 | |
31 | #pragma once |
32 | |
33 | #include "RenderSelectionInfo.h" |
34 | |
35 | #if ENABLE(SERVICE_CONTROLS) |
36 | #include "SelectionRectGatherer.h" |
37 | #endif |
38 | |
39 | namespace WebCore { |
40 | |
41 | struct OldSelectionData; |
42 | |
43 | class SelectionRangeData { |
44 | public: |
45 | SelectionRangeData(RenderView&); |
46 | |
47 | class Context { |
48 | public: |
49 | Context() = default; |
50 | Context(RenderObject* start, RenderObject* end, unsigned startOffset, unsigned endOffset) |
51 | : m_start(makeWeakPtr(start)) |
52 | , m_end(makeWeakPtr(end)) |
53 | , m_startPosition(startOffset) |
54 | , m_endPosition(endOffset) |
55 | { |
56 | } |
57 | |
58 | RenderObject* start() const { return m_start.get(); } |
59 | RenderObject* end() const { return m_end.get(); } |
60 | Optional<unsigned> startPosition() const { return m_startPosition; } |
61 | Optional<unsigned> endPosition() const { return m_endPosition; } |
62 | |
63 | bool operator==(const Context& other) const |
64 | { |
65 | return m_start == other.m_start && m_end == other.m_end && m_startPosition == other.m_startPosition && m_endPosition == other.m_endPosition; |
66 | } |
67 | |
68 | private: |
69 | WeakPtr<RenderObject> m_start; |
70 | WeakPtr<RenderObject> m_end; |
71 | Optional<unsigned> m_startPosition; |
72 | Optional<unsigned> m_endPosition; |
73 | }; |
74 | |
75 | enum class RepaintMode { NewXOROld, NewMinusOld, Nothing }; |
76 | void set(const Context&, RepaintMode = RepaintMode::NewXOROld); |
77 | const Context& get() const { return m_selectionContext; } |
78 | |
79 | RenderObject* start() const { return m_selectionContext.start(); } |
80 | RenderObject* end() const { return m_selectionContext.end(); } |
81 | |
82 | unsigned startPosition() const { ASSERT(m_selectionContext.startPosition()); return m_selectionContext.startPosition().valueOr(0); } |
83 | unsigned endPosition() const { ASSERT(m_selectionContext.endPosition()); return m_selectionContext.endPosition().valueOr(0); } |
84 | |
85 | void clear(); |
86 | IntRect bounds() const { return collectBounds(ClipToVisibleContent::No); } |
87 | IntRect boundsClippedToVisibleContent() const { return collectBounds(ClipToVisibleContent::Yes); } |
88 | void repaint() const; |
89 | |
90 | private: |
91 | enum class ClipToVisibleContent { Yes, No }; |
92 | IntRect collectBounds(ClipToVisibleContent) const; |
93 | void apply(const Context&, RepaintMode); |
94 | |
95 | const RenderView& m_renderView; |
96 | #if ENABLE(SERVICE_CONTROLS) |
97 | SelectionRectGatherer m_selectionRectGatherer; |
98 | #endif |
99 | Context m_selectionContext; |
100 | bool m_selectionWasCaret { false }; |
101 | }; |
102 | |
103 | } // namespace WebCore |
104 | |