about summary refs log tree commit diff stats
path: root/widgets/dirlist.go
blob: 600b38c053c06a31d92d7cbd02cb113a3a097979 (plain) (blame)
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
package widgets

import (
	"fmt"
	"log"
	"regexp"
	"sort"

	"github.com/gdamore/tcell"
	"github.com/mattn/go-runewidth"

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

type DirectoryList struct {
	ui.Invalidatable
	aercConf  *config.AercConfig
	acctConf  *config.AccountConfig
	store     *lib.DirStore
	dirs      []string
	logger    *log.Logger
	selecting string
	selected  string
	spinner   *Spinner
	worker    *types.Worker
}

func NewDirectoryList(conf *config.AercConfig, acctConf *config.AccountConfig,
	logger *log.Logger, worker *types.Worker) *DirectoryList {

	dirlist := &DirectoryList{
		aercConf: conf,
		acctConf: acctConf,
		logger:   logger,
		store:    lib.NewDirStore(),
		worker:   worker,
	}
	uiConf := dirlist.UiConfig()
	dirlist.spinner = NewSpinner(&uiConf)
	dirlist.spinner.OnInvalidate(func(_ ui.Drawable) {
		dirlist.Invalidate()
	})
	dirlist.spinner.Start()
	return dirlist
}

func (dirlist *DirectoryList) UiConfig() config.UIConfig {
	return dirlist.aercConf.GetUiConfig(map[config.ContextType]string{
		config.UI_CONTEXT_ACCOUNT: dirlist.acctConf.Name,
		config.UI_CONTEXT_FOLDER:  dirlist.Selected(),
	})
}

func (dirlist *DirectoryList) List() []string {
	return dirlist.store.List()
}

func (dirlist *DirectoryList) UpdateList(done func(dirs []string)) {
	// TODO: move this logic into dirstore
	var dirs []string
	dirlist.worker.PostAction(
		&types.ListDirectories{}, func(msg types.WorkerMessage) {

			switch msg := msg.(type) {
			case *types.Directory:
				dirs = append(dirs, msg.Dir.Name)
			case *types.Done:
				dirlist.store.Update(dirs)
				dirlist.filterDirsByFoldersConfig()
				dirlist.sortDirsByFoldersSortConfig()
				dirlist.store.Update(dirlist.dirs)
				dirlist.spinner.Stop()
				dirlist.Invalidate()
				if done != nil {
					done(dirs)
				}
			}
		})
}

func (dirlist *DirectoryList) Select(name string) {
	dirlist.selecting = name
	dirlist.worker.PostAction(&types.OpenDirectory{Directory: name},
		func(msg types.WorkerMessage) {
			switch msg.(type) {
			case *types.Error:
				dirlist.selecting = ""
			case *types.Done:
				dirlist.selected = dirlist.selecting
				dirlist.filterDirsByFoldersConfig()
				hasSelected := false
				for _, d := range dirlist.dirs {
					if d == dirlist.selected {
						hasSelected = true
						break
					}
				}
				if !hasSelected && dirlist.selected != "" {
					dirlist.dirs = append(dirlist.dirs, dirlist.selected)
				}
				sort.Strings(dirlist.dirs)
				dirlist.sortDirsByFoldersSortConfig()
			}
			dirlist.Invalidate()
		})
	dirlist.Invalidate()
}

func (dirlist *DirectoryList) Selected() string {
	return dirlist.selected
}

func (dirlist *DirectoryList) Invalidate() {
	dirlist.DoInvalidate(dirlist)
}

func (dirlist *DirectoryList) getDirString(name string, width int, recentUnseen func() string) string {
	percent := false
	rightJustify := false
	formatted := ""
	doRightJustify := func(s string) {
		formatted = runewidth.FillRight(formatted, width-len(s))
		formatted = runewidth.Truncate(formatted, width-len(s), "…")
	}
	for _, char := range dirlist.UiConfig().DirListFormat {
		switch char {
		case '%':
			if percent {
				formatted += string(char)
				percent = false
			} else {
				percent = true
			}
		case '>':
			if percent {
				rightJustify = true
			}
		case 'n':
			if percent {
				if rightJustify {
					doRightJustify(name)
					rightJustify = false
				}
				formatted += name
				percent = false
			}
		case 'r':
			if percent {
				rString := recentUnseen()
				if rightJustify {
					doRightJustify(rString)
					rightJustify = false
				}
				formatted += rString
				percent = false
			}
		default:
			formatted += string(char)
		}
	}
	return formatted
}

func (dirlist *DirectoryList) getRUEString(name string) string {
	msgStore, ok := dirlist.MsgStore(name)
	if !ok {
		return ""
	}
	var totalRecent, totalUnseen, totalExists int
	if msgStore.DirInfo.AccurateCounts {
		totalRecent = msgStore.DirInfo.Recent
		totalUnseen = msgStore.DirInfo.Unseen
		totalExists = msgStore.DirInfo.Exists
	} else {
		totalRecent, totalUnseen = countRUE(msgStore)
		// use the total count from the dirinfo, else we only count already
		// fetched messages
		totalExists = msgStore.DirInfo.Exists
	}
	rueString := ""
	if totalRecent > 0 {
		rueString = fmt.Sprintf("%d/%d/%d", totalRecent, totalUnseen, totalExists)
	} else if totalUnseen > 0 {
		rueString = fmt.Sprintf("%d/%d", totalUnseen, totalExists)
	} else if totalExists > 0 {
		rueString = fmt.Sprintf("%d", totalExists)
	}
	return rueString
}

func (dirlist *DirectoryList) Draw(ctx *ui.Context) {
	ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', tcell.StyleDefault)

	if dirlist.spinner.IsRunning() {
		dirlist.spinner.Draw(ctx)
		return
	}

	if len(dirlist.dirs) == 0 {
		style := tcell.StyleDefault
		ctx.Printf(0, 0, style, dirlist.UiConfig().EmptyDirlist)
		return
	}

	row := 0
	for _, name := range dirlist.dirs {
		if row >= ctx.Height() {
			break
		}
		style := tcell.StyleDefault
		if name == dirlist.selected {
			style = style.Reverse(true)
		} else if name == dirlist.selecting {
			style = style.Reverse(true)
			style = style.Foreground(tcell.ColorGray)
		}
		ctx.Fill(0, row, ctx.Width(), 1, ' ', style)

		dirString := dirlist.getDirString(name, ctx.Width(), func() string {
			return dirlist.getRUEString(name)
		})

		ctx.Printf(0, row, style, dirString)
		row++
	}
}

func (dirlist *DirectoryList) MouseEvent(localX int, localY int, event tcell.Event) {
	switch event := event.(type) {
	case *tcell.EventMouse:
		switch event.Buttons() {
		case tcell.Button1:
			clickedDir, ok := dirlist.Clicked(localX, localY)
			if ok {
				dirlist.Select(clickedDir)
			}
		case tcell.WheelDown:
			dirlist.Next()
		case tcell.WheelUp:
			dirlist.Prev()
		}
	}
}

func (dirlist *DirectoryList) Clicked(x int, y int) (string, bool) {
	if dirlist.dirs == nil || len(dirlist.dirs) == 0 {
		return "", false
	}
	for i, name := range dirlist.dirs {
		if i == y {
			return name, true
		}
	}
	return "", false
}

func (dirlist *DirectoryList) NextPrev(delta int) {
	curIdx := findString(dirlist.dirs, dirlist.selected)
	if curIdx == len(dirlist.dirs) {
		return
	}
	newIdx := curIdx + delta
	ndirs := len(dirlist.dirs)

	if ndirs == 0 {
		return
	}

	if newIdx < 0 {
		newIdx = ndirs - 1
	} else if newIdx >= ndirs {
		newIdx = 0
	}

	dirlist.Select(dirlist.dirs[newIdx])
}

func (dirlist *DirectoryList) Next() {
	dirlist.NextPrev(1)
}

func (dirlist *DirectoryList) Prev() {
	dirlist.NextPrev(-1)
}

func folderMatches(folder string, pattern string) bool {
	if len(pattern) == 0 {
		return false
	}
	if pattern[0] == '~' {
		r, err := regexp.Compile(pattern[1:])
		if err != nil {
			return false
		}
		return r.Match([]byte(folder))
	}
	return pattern == folder
}

// sortDirsByFoldersSortConfig sets dirlist.dirs to be sorted based on the
// AccountConfig.FoldersSort option. Folders not included in the option
// will be appended at the end in alphabetical order
func (dirlist *DirectoryList) sortDirsByFoldersSortConfig() {
	sort.Slice(dirlist.dirs, func(i, j int) bool {
		foldersSort := dirlist.acctConf.FoldersSort
		iInFoldersSort := findString(foldersSort, dirlist.dirs[i])
		jInFoldersSort := findString(foldersSort, dirlist.dirs[j])
		if iInFoldersSort >= 0 && jInFoldersSort >= 0 {
			return iInFoldersSort < jInFoldersSort
		}
		if iInFoldersSort >= 0 {
			return true
		}
		if jInFoldersSort >= 0 {
			return false
		}
		return dirlist.dirs[i] < dirlist.dirs[j]
	})
}

// filterDirsByFoldersConfig sets dirlist.dirs to the filtered subset of the
// dirstore, based on the AccountConfig.Folders option
func (dirlist *DirectoryList) filterDirsByFoldersConfig() {
	dirlist.dirs = dirlist.store.List()
	// config option defaults to show all if unset
	configFolders := dirlist.acctConf.Folders
	if len(configFolders) == 0 {
		return
	}
	var filtered []string
	for _, folder := range dirlist.dirs {
		for _, cfgfolder := range configFolders {
			if folderMatches(folder, cfgfolder) {
				filtered = append(filtered, folder)
				break
			}
		}
	}
	dirlist.dirs = filtered
}

func (dirlist *DirectoryList) SelectedMsgStore() (*lib.MessageStore, bool) {
	return dirlist.store.MessageStore(dirlist.selected)
}

func (dirlist *DirectoryList) MsgStore(name string) (*lib.MessageStore, bool) {
	return dirlist.store.MessageStore(name)
}

func (dirlist *DirectoryList) SetMsgStore(name string, msgStore *lib.MessageStore) {
	dirlist.store.SetMessageStore(name, msgStore)
	msgStore.OnUpdateDirs(func() {
		dirlist.Invalidate()
	})
}

func findString(slice []string, str string) int {
	for i, s := range slice {
		if str == s {
			return i
		}
	}
	return -1
}

func (dirlist *DirectoryList) getSortCriteria() []*types.SortCriterion {
	if len(dirlist.UiConfig().Sort) == 0 {
		return nil
	}
	criteria, err := libsort.GetSortCriteria(dirlist.UiConfig().Sort)
	if err != nil {
		dirlist.logger.Printf("getSortCriteria failed: %v", err)
		return nil
	}
	return criteria
}

func countRUE(msgStore *lib.MessageStore) (recent, unread int) {
	for _, msg := range msgStore.Messages {
		if msg == nil {
			continue
		}
		seen := false
		isrecent := false
		for _, flag := range msg.Flags {
			if flag == models.SeenFlag {
				seen = true
			} else if flag == models.RecentFlag {
				isrecent = true
			}
		}
		if !seen {
			if isrecent {
				recent++
			} else {
				unread++
			}
		}
	}
	return recent, unread
}