~sircmpwn/aerc

aerc/lib/msgstore.go -rw-r--r-- 14.0 KiB View raw
                                                                                
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
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
package lib

import (
	"io"
	"time"

	"git.sr.ht/~sircmpwn/aerc/lib/sort"
	"git.sr.ht/~sircmpwn/aerc/models"
	"git.sr.ht/~sircmpwn/aerc/worker/types"
)

// Accesses to fields must be guarded by MessageStore.Lock/Unlock
type MessageStore struct {
	Deleted  map[uint32]interface{}
	DirInfo  models.DirectoryInfo
	Messages map[uint32]*models.MessageInfo
	// Ordered list of known UIDs
	uids []uint32

	selected        int
	bodyCallbacks   map[uint32][]func(io.Reader)
	headerCallbacks map[uint32][]func(*types.MessageInfo)

	//marking
	marked         map[uint32]struct{}
	visualStartUid uint32
	visualMarkMode bool

	// Search/filter results
	results     []uint32
	resultIndex int
	filter      bool

	defaultSortCriteria []*types.SortCriterion

	// Map of uids we've asked the worker to fetch
	onUpdate       func(store *MessageStore) // TODO: multiple onUpdate handlers
	onUpdateDirs   func()
	pendingBodies  map[uint32]interface{}
	pendingHeaders map[uint32]interface{}
	worker         *types.Worker

	triggerNewEmail        func(*models.MessageInfo)
	triggerDirectoryChange func()
}

func NewMessageStore(worker *types.Worker,
1 reference
dirInfo *models.DirectoryInfo, defaultSortCriteria []*types.SortCriterion, triggerNewEmail func(*models.MessageInfo), triggerDirectoryChange func()) *MessageStore { return &MessageStore{ Deleted: make(map[uint32]interface{}), DirInfo: *dirInfo, Messages: make(map[uint32]*models.MessageInfo), selected: 0, marked: make(map[uint32]struct{}), bodyCallbacks: make(map[uint32][]func(io.Reader)), headerCallbacks: make(map[uint32][]func(*types.MessageInfo)), defaultSortCriteria: defaultSortCriteria, pendingBodies: make(map[uint32]interface{}), pendingHeaders: make(map[uint32]interface{}), worker: worker, triggerNewEmail: triggerNewEmail, triggerDirectoryChange: triggerDirectoryChange, } } func (store *MessageStore) FetchHeaders(uids []uint32,
1 reference
cb func(*types.MessageInfo)) { // TODO: this could be optimized by pre-allocating toFetch and trimming it // at the end. In practice we expect to get most messages back in one frame. var toFetch []uint32 for _, uid := range uids { if _, ok := store.pendingHeaders[uid]; !ok { toFetch = append(toFetch, uid) store.pendingHeaders[uid] = nil if cb != nil { if list, ok := store.headerCallbacks[uid]; ok { store.headerCallbacks[uid] = append(list, cb) } else { store.headerCallbacks[uid] = []func(*types.MessageInfo){cb} } } } } if len(toFetch) > 0 { store.worker.PostAction(&types.FetchMessageHeaders{Uids: toFetch}, nil) } } func (store *MessageStore) FetchFull(uids []uint32, cb func(io.Reader)) {
2 references
// TODO: this could be optimized by pre-allocating toFetch and trimming it // at the end. In practice we expect to get most messages back in one frame. var toFetch []uint32 for _, uid := range uids { if _, ok := store.pendingBodies[uid]; !ok { toFetch = append(toFetch, uid) store.pendingBodies[uid] = nil if cb != nil { if list, ok := store.bodyCallbacks[uid]; ok { store.bodyCallbacks[uid] = append(list, cb) } else { store.bodyCallbacks[uid] = []func(io.Reader){cb} } } } } if len(toFetch) > 0 { store.worker.PostAction(&types.FetchFullMessages{ Uids: toFetch, }, func(msg types.WorkerMessage) { switch msg.(type) { case *types.Error: for _, uid := range toFetch { delete(store.bodyCallbacks, uid) } } }) } } func (store *MessageStore) FetchBodyPart(
6 references
uid uint32, parent *models.BodyStructure, part []int, cb func(io.Reader)) { partbs, err := parent.PartAtIndex(part) if err != nil { store.worker.Logger.Printf("FetchBodyPart: %v\n", err) } var charset string var ok bool if charset, ok = partbs.Params["charset"]; !ok { charset = "" } store.worker.PostAction(&types.FetchMessageBodyPart{ Uid: uid, Part: part, Encoding: partbs.Encoding, Charset: charset, }, func(resp types.WorkerMessage) { msg, ok := resp.(*types.MessageBodyPart) if !ok { return } cb(msg.Part.Reader) }) } func merge(to *models.MessageInfo, from *models.MessageInfo) {
1 reference
if from.BodyStructure != nil { to.BodyStructure = from.BodyStructure } if from.Envelope != nil { to.Envelope = from.Envelope } to.Flags = from.Flags to.Labels = from.Labels if from.Size != 0 { to.Size = from.Size } var zero time.Time if from.InternalDate != zero { to.InternalDate = from.InternalDate } } func (store *MessageStore) Update(msg types.WorkerMessage) {
5 references
update := false directoryChange := false switch msg := msg.(type) { case *types.DirectoryInfo: store.DirInfo = *msg.Info store.worker.PostAction(&types.FetchDirectoryContents{ SortCriteria: store.defaultSortCriteria, }, nil) update = true case *types.DirectoryContents: newMap := make(map[uint32]*models.MessageInfo) for _, uid := range msg.Uids { if msg, ok := store.Messages[uid]; ok { newMap[uid] = msg } else { newMap[uid] = nil directoryChange = true } } store.Messages = newMap store.uids = msg.Uids update = true case *types.MessageInfo: if existing, ok := store.Messages[msg.Info.Uid]; ok && existing != nil { merge(existing, msg.Info) } else { store.Messages[msg.Info.Uid] = msg.Info } seen := false recent := false for _, flag := range msg.Info.Flags { if flag == models.RecentFlag { recent = true } else if flag == models.SeenFlag { seen = true } } if !seen && recent { store.triggerNewEmail(msg.Info) } if _, ok := store.pendingHeaders[msg.Info.Uid]; msg.Info.Envelope != nil && ok { delete(store.pendingHeaders, msg.Info.Uid) if cbs, ok := store.headerCallbacks[msg.Info.Uid]; ok { for _, cb := range cbs { cb(msg) } } } update = true case *types.FullMessage: if _, ok := store.pendingBodies[msg.Content.Uid]; ok { delete(store.pendingBodies, msg.Content.Uid) if cbs, ok := store.bodyCallbacks[msg.Content.Uid]; ok { for _, cb := range cbs { cb(msg.Content.Reader) } delete(store.bodyCallbacks, msg.Content.Uid) } } case *types.MessagesDeleted: if len(store.uids) < len(msg.Uids) { update = true break } toDelete := make(map[uint32]interface{}) for _, uid := range msg.Uids { toDelete[uid] = nil delete(store.Messages, uid) delete(store.Deleted, uid) delete(store.marked, uid) } uids := make([]uint32, len(store.uids)-len(msg.Uids)) j := 0 for _, uid := range store.uids { if _, deleted := toDelete[uid]; !deleted && j < len(uids) { uids[j] = uid j += 1 } } store.uids = uids update = true } if update { store.update() } if directoryChange && store.triggerDirectoryChange != nil { store.triggerDirectoryChange() } } func (store *MessageStore) OnUpdate(fn func(store *MessageStore)) {
3 references
store.onUpdate = fn } func (store *MessageStore) OnUpdateDirs(fn func()) {
1 reference
store.onUpdateDirs = fn } func (store *MessageStore) update() {
5 references
if store.onUpdate != nil { store.onUpdate(store) } if store.onUpdateDirs != nil { store.onUpdateDirs() } } func (store *MessageStore) Delete(uids []uint32,
1 reference
cb func(msg types.WorkerMessage)) { for _, uid := range uids { store.Deleted[uid] = nil } store.worker.PostAction(&types.DeleteMessages{Uids: uids}, cb) store.update() } func (store *MessageStore) Copy(uids []uint32, dest string, createDest bool,
1 reference
cb func(msg types.WorkerMessage)) { if createDest { store.worker.PostAction(&types.CreateDirectory{ Directory: dest, Quiet: true, }, cb) } store.worker.PostAction(&types.CopyMessages{ Destination: dest, Uids: uids, }, cb) } func (store *MessageStore) Move(uids []uint32, dest string, createDest bool,
2 references
cb func(msg types.WorkerMessage)) { for _, uid := range uids { store.Deleted[uid] = nil } if createDest { store.worker.PostAction(&types.CreateDirectory{ Directory: dest, Quiet: true, }, nil) // quiet doesn't return an error, don't want the done cb here } store.worker.PostAction(&types.CopyMessages{ Destination: dest, Uids: uids, }, func(msg types.WorkerMessage) { switch msg.(type) { case *types.Error: cb(msg) case *types.Done: store.worker.PostAction(&types.DeleteMessages{Uids: uids}, cb) } }) store.update() } func (store *MessageStore) Read(uids []uint32, read bool,
2 references
cb func(msg types.WorkerMessage)) { store.worker.PostAction(&types.ReadMessages{ Read: read, Uids: uids, }, cb) } func (store *MessageStore) Uids() []uint32 {
17 references
if store.filter { return store.results } return store.uids } func (store *MessageStore) Selected() *models.MessageInfo {
4 references
return store.Messages[store.Uids()[len(store.Uids())-store.selected-1]] } func (store *MessageStore) SelectedIndex() int {
4 references
return store.selected } func (store *MessageStore) Select(index int) {
2 references
uids := store.Uids() store.selected = index if store.selected < 0 { store.selected = len(uids) - 1 } else if store.selected > len(uids) { store.selected = len(uids) } store.updateVisual() } // Mark sets the marked state on a MessageInfo func (store *MessageStore) Mark(uid uint32) {
2 references
if store.visualMarkMode { // visual mode has override, bogus input from user return } store.marked[uid] = struct{}{} } // Unmark removes the marked state on a MessageInfo func (store *MessageStore) Unmark(uid uint32) {
2 references
if store.visualMarkMode { // user probably wanted to clear the visual marking store.ClearVisualMark() return } delete(store.marked, uid) } // ToggleMark toggles the marked state on a MessageInfo func (store *MessageStore) ToggleMark(uid uint32) {
2 references
if store.visualMarkMode { // visual mode has override, bogus input from user return } if store.IsMarked(uid) { store.Unmark(uid) } else { store.Mark(uid) } } // resetMark removes the marking from all messages func (store *MessageStore) resetMark() {
3 references
store.marked = make(map[uint32]struct{}) } //IsMarked checks whether a MessageInfo has been marked func (store *MessageStore) IsMarked(uid uint32) bool {
2 references
_, marked := store.marked[uid] return marked } //ToggleVisualMark enters or leaves the visual marking mode func (store *MessageStore) ToggleVisualMark() {
1 reference
store.visualMarkMode = !store.visualMarkMode switch store.visualMarkMode { case true: // just entered visual mode, reset whatever marking was already done store.resetMark() store.visualStartUid = store.Selected().Uid store.marked[store.visualStartUid] = struct{}{} case false: // visual mode ended, nothing to do return } } //ClearVisualMark leaves the visual marking mode and resets any marking func (store *MessageStore) ClearVisualMark() {
4 references
store.resetMark() store.visualMarkMode = false store.visualStartUid = 0 } // Marked returns the uids of all marked messages func (store *MessageStore) Marked() []uint32 {
2 references
marked := make([]uint32, len(store.marked)) i := 0 for uid := range store.marked { marked[i] = uid i++ } return marked } func (store *MessageStore) updateVisual() {
2 references
if !store.visualMarkMode { // nothing to do return } startIdx := store.visualStartIdx() if startIdx < 0 { // something deleted the startuid, abort the marking process store.ClearVisualMark() return } uidLen := len(store.Uids()) // store.selected is the inverted form of the actual array selectedIdx := uidLen - store.selected - 1 var visUids []uint32 if selectedIdx > startIdx { visUids = store.Uids()[startIdx : selectedIdx+1] } else { visUids = store.Uids()[selectedIdx : startIdx+1] } store.resetMark() for _, uid := range visUids { store.marked[uid] = struct{}{} } } func (store *MessageStore) NextPrev(delta int) {
4 references
uids := store.Uids() if len(uids) == 0 { return } store.selected += delta if store.selected < 0 { store.selected = 0 } if store.selected >= len(uids) { store.selected = len(uids) - 1 } store.updateVisual() nextResultIndex := len(store.results) - store.resultIndex - 2*delta if nextResultIndex < 0 || nextResultIndex >= len(store.results) { return } nextResultUid := store.results[nextResultIndex] selectedUid := uids[len(uids)-store.selected-1] if nextResultUid == selectedUid { store.resultIndex += delta } } func (store *MessageStore) Next() {
5 references
store.NextPrev(1) } func (store *MessageStore) Prev() {
2 references
store.NextPrev(-1) } func (store *MessageStore) Search(args []string, cb func([]uint32)) {
1 reference
store.worker.PostAction(&types.SearchDirectory{ Argv: args, }, func(msg types.WorkerMessage) { switch msg := msg.(type) { case *types.SearchResults: sort.SortBy(msg.Uids, store.uids) cb(msg.Uids) } }) } func (store *MessageStore) ApplySearch(results []uint32) {
1 reference
store.results = results store.resultIndex = -1 store.NextResult() } func (store *MessageStore) ApplyFilter(results []uint32) {
1 reference
store.results = results store.filter = true store.update() // any marking is now invalid // TODO: could save that probably store.ClearVisualMark() } func (store *MessageStore) ApplyClear() {
2 references
store.results = nil store.filter = false } func (store *MessageStore) nextPrevResult(delta int) {
2 references
if len(store.results) == 0 { return } store.resultIndex += delta if store.resultIndex >= len(store.results) { store.resultIndex = 0 } if store.resultIndex < 0 { store.resultIndex = len(store.results) - 1 } for i, uid := range store.uids { if store.results[len(store.results)-store.resultIndex-1] == uid { store.Select(len(store.uids) - i - 1) break } } store.update() } func (store *MessageStore) NextResult() {
2 references
store.nextPrevResult(1) } func (store *MessageStore) PrevResult() {
1 reference
store.nextPrevResult(-1) } func (store *MessageStore) ModifyLabels(uids []uint32, add, remove []string,
1 reference
cb func(msg types.WorkerMessage)) { store.worker.PostAction(&types.ModifyLabels{ Uids: uids, Add: add, Remove: remove, }, cb) } func (store *MessageStore) Sort(criteria []*types.SortCriterion, cb func()) {
1 reference
store.worker.PostAction(&types.FetchDirectoryContents{ SortCriteria: criteria, }, func(msg types.WorkerMessage) { cb() }) } // returns the index of needle in haystack or -1 if not found func (store *MessageStore) visualStartIdx() int {
1 reference
for idx, u := range store.Uids() { if u == store.visualStartUid { return idx } } return -1 }