summaryrefslogtreecommitdiffstats
path: root/Source/CursesDialog/cmCursesStringWidget.cxx
blob: 6296af20baa5aae9761b1acf8792e484ac6ffd15 (plain)
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
193
194
195
196
197
198
199
200
201
202
203
/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#include "cmCursesStringWidget.h"

#include <cstdio>

#include "cmCursesForm.h"
#include "cmCursesMainForm.h"
#include "cmCursesStandardIncludes.h"
#include "cmCursesWidget.h"
#include "cmStateTypes.h"

inline int ctrl(int z)
{
  return (z & 037);
}

cmCursesStringWidget::cmCursesStringWidget(int width, int height, int left,
                                           int top)
  : cmCursesWidget(width, height, left, top)
{
  this->InEdit = false;
  this->Type = cmStateEnums::STRING;
  set_field_fore(this->Field, A_NORMAL);
  set_field_back(this->Field, A_STANDOUT);
  field_opts_off(this->Field, O_STATIC);
}

void cmCursesStringWidget::OnTab(cmCursesMainForm* /*unused*/,
                                 WINDOW* /*unused*/)
{
  // FORM* form = fm->GetForm();
}

void cmCursesStringWidget::OnReturn(cmCursesMainForm* fm, WINDOW* /*unused*/)
{
  if (this->InEdit) {
    cmCursesForm::LogMessage("String widget leaving edit.");
    this->InEdit = false;
    fm->PrintKeys();
    this->OriginalString.clear();
    // trick to force forms to update the field buffer
    FORM* form = fm->GetForm();
    form_driver(form, REQ_NEXT_FIELD);
    form_driver(form, REQ_PREV_FIELD);
    this->Done = true;
  } else {
    cmCursesForm::LogMessage("String widget entering edit.");
    this->InEdit = true;
    fm->PrintKeys();
    this->OriginalString = field_buffer(this->Field, 0);
  }
}

void cmCursesStringWidget::OnType(int& key, cmCursesMainForm* fm,
                                  WINDOW* /*unused*/)
{
  form_driver(fm->GetForm(), key);
}

bool cmCursesStringWidget::HandleInput(int& key, cmCursesMainForm* fm,
                                       WINDOW* w)
{
  int x;
  int y;

  FORM* form = fm->GetForm();
  // when not in edit mode, edit mode is entered by pressing enter or i (vim
  // binding)
  // 10 == enter
  if (!this->InEdit && (key != 10 && key != KEY_ENTER && key != 'i')) {
    return false;
  }

  this->OriginalString.clear();
  this->Done = false;

  char debugMessage[128];

  // <Enter> is used to change edit mode (like <Esc> in vi).
  while (!this->Done) {
    sprintf(debugMessage, "String widget handling input, key: %d", key);
    cmCursesForm::LogMessage(debugMessage);

    fm->PrintKeys();

    getmaxyx(stdscr, y, x);
    // If window too small, handle 'q' only
    if (x < cmCursesMainForm::MIN_WIDTH || y < cmCursesMainForm::MIN_HEIGHT) {
      // quit
      if (key == 'q') {
        return false;
      }
      key = getch();
      continue;
    }

    // If resize occurred during edit, move out of edit mode
    if (!this->InEdit && (key != 10 && key != KEY_ENTER && key != 'i')) {
      return false;
    }
    // enter edit with return and i (vim binding)
    if (!this->InEdit && (key == 10 || key == KEY_ENTER || key == 'i')) {
      this->OnReturn(fm, w);
    }
    // leave edit with return (but not i -- not a toggle)
    else if (this->InEdit && (key == 10 || key == KEY_ENTER)) {
      this->OnReturn(fm, w);
    } else if (key == KEY_DOWN || key == ctrl('n') || key == KEY_UP ||
               key == ctrl('p') || key == KEY_NPAGE || key == ctrl('d') ||
               key == KEY_PPAGE || key == ctrl('u')) {
      this->InEdit = false;
      this->OriginalString.clear();
      // trick to force forms to update the field buffer
      form_driver(form, REQ_NEXT_FIELD);
      form_driver(form, REQ_PREV_FIELD);
      return false;
    }
    // esc
    else if (key == 27) {
      if (this->InEdit) {
        this->InEdit = false;
        fm->PrintKeys();
        this->SetString(this->OriginalString);
        this->OriginalString.clear();
        touchwin(w);
        wrefresh(w);
        return true;
      }
    } else if (key == 9) {
      this->OnTab(fm, w);
    } else if (key == KEY_LEFT || key == ctrl('b')) {
      form_driver(form, REQ_PREV_CHAR);
    } else if (key == KEY_RIGHT || key == ctrl('f')) {
      form_driver(form, REQ_NEXT_CHAR);
    } else if (key == ctrl('k')) {
      form_driver(form, REQ_CLR_EOL);
    } else if (key == ctrl('a') || key == KEY_HOME) {
      form_driver(form, REQ_BEG_FIELD);
    } else if (key == ctrl('e') || key == KEY_END) {
      form_driver(form, REQ_END_FIELD);
    } else if (key == 127 || key == KEY_BACKSPACE) {
      FIELD* cur = current_field(form);
      form_driver(form, REQ_DEL_PREV);
      if (current_field(form) != cur) {
        set_current_field(form, cur);
      }
    } else if (key == ctrl('d') || key == KEY_DC) {
      form_driver(form, REQ_DEL_CHAR);
    } else {
      this->OnType(key, fm, w);
    }
    if (!this->Done) {
      touchwin(w);
      wrefresh(w);

      key = getch();
    }
  }
  return true;
}

void cmCursesStringWidget::SetString(const std::string& value)
{
  this->SetValue(value);
}

const char* cmCursesStringWidget::GetString()
{
  return this->GetValue();
}

const char* cmCursesStringWidget::GetValue()
{
  return field_buffer(this->Field, 0);
}

bool cmCursesStringWidget::PrintKeys()
{
  int x;
  int y;
  getmaxyx(stdscr, y, x);
  if (x < cmCursesMainForm::MIN_WIDTH || y < cmCursesMainForm::MIN_HEIGHT) {
    return false;
  }
  if (this->InEdit) {
    char fmt_s[] = "%s";
    // Clean the toolbar
    curses_move(y - 4, 0);
    clrtoeol();
    curses_move(y - 3, 0);
    printw(fmt_s, "Editing option, press [enter] to confirm");
    clrtoeol();
    curses_move(y - 2, 0);
    printw(fmt_s, "                press [esc] to cancel");
    clrtoeol();
    curses_move(y - 1, 0);
    clrtoeol();

    return true;
  }
  return false;
}