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
|
/*
* Copyright (c) 2021, the SerenityOS developers.
* 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER 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.
*/
#pragma once
#include <LibGUI/EditingEngine.h>
namespace GUI {
enum VimMode {
Normal,
Insert,
Visual
};
class VimEditingEngine final : public EditingEngine {
public:
VimEditingEngine();
virtual CursorWidth cursor_width() const override;
virtual bool on_key(const KeyEvent& event) override;
class PreviousKey {
public:
PreviousKey() = default;
PreviousKey(const KeyEvent& event)
: key(event.key())
, code_point(event.code_point())
{
}
bool operator==(const KeyCode& key) const
{
return this->key == key;
}
bool operator==(const u32& code_point) const
{
return this->code_point == code_point;
}
KeyCode key {};
u32 code_point {};
};
Function<void(VimMode)> on_mode_change;
Function<void(const PreviousKey&, bool has_previous_key)> on_previous_keys_change;
private:
enum YankType {
Line,
Selection
};
VimMode m_vim_mode { VimMode::Normal };
YankType m_yank_type {};
String m_yank_buffer {};
void yank(YankType);
void yank(TextRange);
void put(const GUI::KeyEvent&);
TextPosition m_selection_start_position {};
void update_selection_on_cursor_move();
void clear_visual_mode_data();
// FIXME Support multiple previous keys, this is a temporary measure.
PreviousKey m_previous_key {};
bool has_previous_key { false };
void set_previous_key(PreviousKey event)
{
m_previous_key = event;
has_previous_key = true;
if (on_previous_keys_change)
on_previous_keys_change(m_previous_key, has_previous_key);
}
void clear_previous_key()
{
m_previous_key = {};
has_previous_key = false;
if (on_previous_keys_change)
on_previous_keys_change(m_previous_key, has_previous_key);
}
void switch_to_normal_mode();
void switch_to_insert_mode();
void switch_to_visual_mode();
void move_half_page_up(const KeyEvent& event);
void move_half_page_down(const KeyEvent& event);
bool on_key_in_insert_mode(const KeyEvent& event);
bool on_key_in_normal_mode(const KeyEvent& event);
bool on_key_in_visual_mode(const KeyEvent& event);
};
}
|
