summaryrefslogtreecommitdiff
path: root/src/tabs/data_forms.py
blob: d5d4318a248ab2247d9f707e09836e41edce893b (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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
#
# This file is part of Poezio.
#
# Poezio is free software: you can redistribute it and/or modify
# it under the terms of the zlib license. See the COPYING file.

"""
Defines the data-forms Tab and all the Windows for it.
"""

import logging
log = logging.getLogger(__name__)

from windows import g_lock
import windows
from tabs import Tab
from theming import to_curses_attr, get_theme

class DataFormsTab(Tab):
    """
    A tab contaning various window type, displaying
    a form that the user needs to fill.
    """
    plugin_commands = {}
    def __init__(self, form, on_cancel, on_send, kwargs):
        Tab.__init__(self)
        self._form = form
        self._on_cancel = on_cancel
        self._on_send = on_send
        self._kwargs = kwargs
        self.fields = []
        for field in self._form:
            self.fields.append(field)
        self.topic_win = windows.Topic()
        self.form_win = FormWin(form, self.height-4, self.width, 1, 0)
        self.help_win = windows.HelpText("Ctrl+Y: send form, Ctrl+G: cancel")
        self.help_win_dyn = windows.HelpText()
        self.key_func['KEY_UP'] = self.form_win.go_to_previous_input
        self.key_func['KEY_DOWN'] = self.form_win.go_to_next_input
        self.key_func['^G'] = self.on_cancel
        self.key_func['^Y'] = self.on_send
        self.resize()
        self.update_commands()

    def on_cancel(self):
        self._on_cancel(self._form)
        return True

    def on_send(self):
        self._form.reply()
        self.form_win.reply()
        self._on_send(self._form)
        return True

    def on_input(self, key, raw=False):
        if key in self.key_func:
            res = self.key_func[key]()
            if res:
                return res
            self.help_win_dyn.refresh(self.form_win.get_help_message())
            self.form_win.refresh_current_input()
        else:
            self.form_win.on_input(key)

    def resize(self):
        self.need_resize = False
        self.topic_win.resize(1, self.width, 0, 0)
        self.form_win.resize(self.height - 3 - Tab.tab_win_height(),
                             self.width, 1, 0)
        self.help_win.resize(1, self.width, self.height - 1, 0)
        self.help_win_dyn.resize(1, self.width,
                                 self.height - 2 - Tab.tab_win_height(), 0)
        self.lines = []

    def refresh(self):
        if self.need_resize:
            self.resize()
        self.topic_win.refresh(self._form['title'])
        self.refresh_tab_win()
        self.help_win.refresh()
        self.help_win_dyn.refresh(self.form_win.get_help_message())
        self.form_win.refresh()

class FieldInput(object):
    """
    All input type in a data form should inherite this class,
    in addition with windows.Input or any relevant class from the
    'windows' library.
    """
    def __init__(self, field):
        self._field = field
        self.color = get_theme().COLOR_NORMAL_TEXT

    def set_color(self, color):
        self.color = color
        self.refresh()

    def update_field_value(self, value):
        raise NotImplementedError

    def resize(self, height, width, y, x):
        self._resize(height, width, y, x)

    def is_dummy(self):
        return False

    def reply(self):
        """
        Set the correct response value in the field
        """
        raise NotImplementedError

    def get_help_message(self):
        """
        Should return a string explaining the keys of the input.
        Will be displayed at each refresh on a line at the bottom of the tab.
        """
        return ''

class ColoredLabel(windows.Win):
    def __init__(self, text):
        self.text = text
        self.color = get_theme().COLOR_NORMAL_TEXT
        windows.Win.__init__(self)

    def resize(self, height, width, y, x):
        self._resize(height, width, y, x)

    def set_color(self, color):
        self.color = color
        self.refresh()

    def refresh(self):
        with g_lock:
            self._win.erase()
            self._win.attron(to_curses_attr(self.color))
            self.addstr(0, 0, self.text)
            self._win.attroff(to_curses_attr(self.color))
            self._refresh()


class DummyInput(FieldInput, windows.Win):
    """
    Used for fields that do not require any input ('fixed')
    """
    def __init__(self, field):
        FieldInput.__init__(self, field)
        windows.Win.__init__(self)

    def do_command(self):
        return

    def refresh(self):
        return

    def is_dummy(self):
        return True

class BooleanWin(FieldInput, windows.Win):
    def __init__(self, field):
        FieldInput.__init__(self, field)
        windows.Win.__init__(self)
        self.last_key = 'KEY_RIGHT'
        self.value = bool(field.getValue())

    def do_command(self, key):
        if key == 'KEY_LEFT' or key == 'KEY_RIGHT':
            self.value = not self.value
            self.last_key = key
        self.refresh()

    def refresh(self):
        with g_lock:
            self._win.erase()
            self._win.attron(to_curses_attr(self.color))
            self.addnstr(0, 0, ' '*(8), self.width)
            self.addstr(0, 2, "%s"%self.value)
            self.addstr(0, 8, '→')
            self.addstr(0, 0, '←')
            if self.last_key == 'KEY_RIGHT':
                self.addstr(0, 8, '')
            else:
                self.addstr(0, 0, '')
            self._win.attroff(to_curses_attr(self.color))
            self._refresh()

    def reply(self):
        self._field['label'] = ''
        self._field.setAnswer(self.value)

    def get_help_message(self):
        return '← and →: change the value between True and False'

class TextMultiWin(FieldInput, windows.Win):
    def __init__(self, field):
        FieldInput.__init__(self, field)
        windows.Win.__init__(self)
        self.options = field.getValue()
        self.val_pos = 0
        self.edition_input = None
        if not isinstance(self.options, list):
            if isinstance(self.options, str):
                self.options = [self.options]
            else:
                self.options = []
        self.options.append('')

    def do_command(self, key):
        if not self.edition_input:
            if key == 'KEY_LEFT':
                if self.val_pos > 0:
                    self.val_pos -= 1
            elif key == 'KEY_RIGHT':
                if self.val_pos < len(self.options)-1:
                    self.val_pos += 1
            elif key == '^M':
                self.edition_input = windows.Input()
                self.edition_input.color = self.color
                self.edition_input.resize(self.height, self.width, self.y, self.x)
                self.edition_input.text = self.options[self.val_pos]
                self.edition_input.key_end()
        else:
            if key == '^M':
                self.options[self.val_pos] = self.edition_input.get_text()
                if not self.options[self.val_pos] and self.val_pos != len(self.options) -1:
                    del self.options[self.val_pos]
                    if self.val_pos == len(self.options) -1:
                        self.val_pos -= 1
                self.edition_input = None
                if not self.options or self.options[-1] != '':
                    self.options.append('')
            else:
                self.edition_input.do_command(key)
        self.refresh()

    def refresh(self):
        if not self.edition_input:
            with g_lock:
                self._win.erase()
                self._win.attron(to_curses_attr(self.color))
                self.addnstr(0, 0, ' '*self.width, self.width)
                option = self.options[self.val_pos]
                self.addstr(0, self.width//2-len(option)//2, option)
                if self.val_pos > 0:
                    self.addstr(0, 0, '←')
                if self.val_pos < len(self.options)-1:
                    self.addstr(0, self.width-1, '→')
                self._win.attroff(to_curses_attr(self.color))
                self._refresh()
        else:
            self.edition_input.refresh()

    def reply(self):
        values = [val for val in self.options if val]
        self._field.setAnswer(values)

    def get_help_message(self):
        if not self.edition_input:
            help_msg = '← and →: browse the available entries. '
            if self.val_pos == len(self.options)-1:
                help_msg += 'Enter: add an entry'
            else:
                help_msg += 'Enter: edit this entry'
        else:
            help_msg = 'Enter: finish editing this entry.'
        return help_msg

class ListMultiWin(FieldInput, windows.Win):
    def __init__(self, field):
        FieldInput.__init__(self, field)
        windows.Win.__init__(self)
        values = field.getValue()
        self.options = [[option, True if option['value'] in values else False]\
                            for option in field.getOptions()]
        self.val_pos = 0

    def do_command(self, key):
        if key == 'KEY_LEFT':
            if self.val_pos > 0:
                self.val_pos -= 1
        elif key == 'KEY_RIGHT':
            if self.val_pos < len(self.options)-1:
                self.val_pos += 1
        elif key == ' ':
            self.options[self.val_pos][1] = not self.options[self.val_pos][1]
        else:
            return
        self.refresh()

    def refresh(self):
        with g_lock:
            self._win.erase()
            self._win.attron(to_curses_attr(self.color))
            self.addnstr(0, 0, ' '*self.width, self.width)
            if self.val_pos > 0:
                self.addstr(0, 0, '←')
            if self.val_pos < len(self.options)-1:
                self.addstr(0, self.width-1, '→')
            option = self.options[self.val_pos]
            self.addstr(0, self.width//2-len(option)//2, option[0]['label'])
            self.addstr(0, 2, '✔' if option[1] else '☐')
            self._win.attroff(to_curses_attr(self.color))
            self._refresh()

    def reply(self):
        self._field['label'] = ''
        self._field.delOptions()
        values = [option[0]['value'] for option in self.options if option[1] is True]
        self._field.setAnswer(values)

    def get_help_message(self):
        return '←, →: Switch between the value. Space: select or unselect a value'

class ListSingleWin(FieldInput, windows.Win):
    def __init__(self, field):
        FieldInput.__init__(self, field)
        windows.Win.__init__(self)
        # the option list never changes
        self.options = field.getOptions()
        # val_pos is the position of the currently selected option
        self.val_pos = 0
        for i, option in enumerate(self.options):
            if field.getValue() == option['value']:
                self.val_pos = i

    def do_command(self, key):
        if key == 'KEY_LEFT':
            if self.val_pos > 0:
                self.val_pos -= 1
        elif key == 'KEY_RIGHT':
            if self.val_pos < len(self.options)-1:
                self.val_pos += 1
        else:
            return
        self.refresh()

    def refresh(self):
        with g_lock:
            self._win.erase()
            self._win.attron(to_curses_attr(self.color))
            self.addnstr(0, 0, ' '*self.width, self.width)
            if self.val_pos > 0:
                self.addstr(0, 0, '←')
            if self.val_pos < len(self.options)-1:
                self.addstr(0, self.width-1, '→')
            option = self.options[self.val_pos]['label']
            self.addstr(0, self.width//2-len(option)//2, option)
            self._win.attroff(to_curses_attr(self.color))
            self._refresh()

    def reply(self):
        self._field['label'] = ''
        self._field.delOptions()
        self._field.setAnswer(self.options[self.val_pos]['value'])

    def get_help_message(self):
        return '←, →: Select a value amongst the others'

class TextSingleWin(FieldInput, windows.Input):
    def __init__(self, field):
        FieldInput.__init__(self, field)
        windows.Input.__init__(self)
        self.text = field.getValue() if isinstance(field.getValue(), str)\
            else ""
        self.pos = len(self.text)
        self.color = get_theme().COLOR_NORMAL_TEXT

    def reply(self):
        self._field['label'] = ''
        self._field.setAnswer(self.get_text())

    def get_help_message(self):
        return 'Edit the text'

class TextPrivateWin(TextSingleWin):
    def __init__(self, field):
        TextSingleWin.__init__(self, field)

    def rewrite_text(self):
        with g_lock:
            self._win.erase()
            if self.color:
                self._win.attron(to_curses_attr(self.color))
            self.addstr('*'*len(self.text[self.view_pos:self.view_pos+self.width-1]))
            if self.color:
                (y, x) = self._win.getyx()
                size = self.width-x
                self.addnstr(' '*size, size, to_curses_attr(self.color))
            self.addstr(0, self.pos, '')
            if self.color:
                self._win.attroff(to_curses_attr(self.color))
            self._refresh()

    def get_help_message(self):
        return 'Edit the secret text'

class FormWin(object):
    """
    A window, with some subwins (the various inputs).
    On init, create all the subwins.
    On resize, move and resize all the subwin and define how the text will be written
    On refresh, write all the text, and refresh all the subwins
    """
    input_classes = {'boolean': BooleanWin,
                     'fixed': DummyInput,
                     'jid-multi': TextMultiWin,
                     'jid-single': TextSingleWin,
                     'list-multi': ListMultiWin,
                     'list-single': ListSingleWin,
                     'text-multi': TextMultiWin,
                     'text-private': TextPrivateWin,
                     'text-single': TextSingleWin,
                     }
    def __init__(self, form, height, width, y, x):
        self._form = form
        with g_lock:
            self._win = windows.Win._tab_win.derwin(height, width, y, x)
        self.scroll_pos = 0
        self.current_input = 0
        self.inputs = []        # dict list
        for (name, field) in self._form.getFields().items():
            if field['type'] == 'hidden':
                continue
            try:
                input_class = self.input_classes[field['type']]
            except IndexError:
                continue
            label = field['label']
            desc = field['desc']
            if field['type'] == 'fixed':
                label = field.getValue()
            inp = input_class(field)
            self.inputs.append({'label':ColoredLabel(label),
                                'description': desc,
                                'input':inp})

    def resize(self, height, width, y, x):
        self.height = height
        self.width = width
        with g_lock:
            self._win = windows.Win._tab_win.derwin(height, width, y, x)
        # Adjust the scroll position, if resizing made the window too small
        # for the cursor to be visible
        while self.current_input - self.scroll_pos > self.height-1:
            self.scroll_pos += 1

    def reply(self):
        """
        Set the response values in the form, for each field
        from the corresponding input
        """
        for inp in self.inputs:
            if inp['input'].is_dummy():
                continue
            else:
                inp['input'].reply()
        self._form['title'] = ''
        self._form['instructions'] = ''

    def go_to_next_input(self):
        if not self.inputs:
            return
        if self.current_input == len(self.inputs) - 1:
            return
        self.inputs[self.current_input]['input'].set_color(get_theme().COLOR_NORMAL_TEXT)
        self.inputs[self.current_input]['label'].set_color(get_theme().COLOR_NORMAL_TEXT)
        self.current_input += 1
        jump = 0
        while self.current_input+jump != len(self.inputs) - 1 and self.inputs[self.current_input+jump]['input'].is_dummy():
            jump += 1
        if self.inputs[self.current_input+jump]['input'].is_dummy():
            return
        self.current_input += jump
        # If moving made the current input out of the visible screen, we
        # adjust the scroll position and we redraw the whole thing. We don’t
        # call refresh() if this is not the case, because
        # refresh_current_input() is always called anyway, so this is not
        # needed
        if self.current_input - self.scroll_pos > self.height-1:
            self.scroll_pos += 1
            self.refresh()
        self.inputs[self.current_input]['input'].set_color(get_theme().COLOR_SELECTED_ROW)
        self.inputs[self.current_input]['label'].set_color(get_theme().COLOR_SELECTED_ROW)

    def go_to_previous_input(self):
        if not self.inputs:
            return
        if self.current_input == 0:
            return
        self.inputs[self.current_input]['input'].set_color(get_theme().COLOR_NORMAL_TEXT)
        self.inputs[self.current_input]['label'].set_color(get_theme().COLOR_NORMAL_TEXT)
        self.current_input -= 1
        jump = 0
        while self.current_input-jump > 0 and self.inputs[self.current_input+jump]['input'].is_dummy():
            jump += 1
        if self.inputs[self.current_input+jump]['input'].is_dummy():
            return
        # Adjust the scroll position if the current_input would be outside
        # of the visible area
        if self.current_input < self.scroll_pos:
            self.scroll_pos = self.current_input
            self.refresh()
        self.current_input -= jump
        self.inputs[self.current_input]['input'].set_color(get_theme().COLOR_SELECTED_ROW)
        self.inputs[self.current_input]['label'].set_color(get_theme().COLOR_SELECTED_ROW)

    def on_input(self, key):
        if not self.inputs:
            return
        self.inputs[self.current_input]['input'].do_command(key)

    def refresh(self):
        with g_lock:
            self._win.erase()
            y = -self.scroll_pos
            i = 0
            for name, field in self._form.getFields().items():
                if field['type'] == 'hidden':
                    continue
                self.inputs[i]['label'].resize(1, self.width//3, y + 1, 0)
                self.inputs[i]['input'].resize(1, self.width//3, y+1, 2*self.width//3)
                # TODO: display the field description
                y += 1
                i += 1
            self._win.refresh()
        for i, inp in enumerate(self.inputs):
            if i < self.scroll_pos:
                continue
            if i >= self.height + self.scroll_pos:
                break
            inp['label'].refresh()
            inp['input'].refresh()
            inp['label'].refresh()
        if self.current_input < self.height-1:
            self.inputs[self.current_input]['input'].set_color(get_theme().COLOR_SELECTED_ROW)
            self.inputs[self.current_input]['input'].refresh()
            self.inputs[self.current_input]['label'].set_color(get_theme().COLOR_SELECTED_ROW)
            self.inputs[self.current_input]['label'].refresh()

    def refresh_current_input(self):
        self.inputs[self.current_input]['input'].refresh()

    def get_help_message(self):
        if self.current_input < self.height-1 and self.inputs[self.current_input]['input']:
            return self.inputs[self.current_input]['input'].get_help_message()
        return ''