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
|
package widgets
import (
"git.sr.ht/~rjarry/aerc/lib/ui"
"git.sr.ht/~rjarry/aerc/models"
)
type HeaderLayout [][]string
type HeaderLayoutFilter struct {
layout HeaderLayout
keep func(msg *models.MessageInfo, header string) bool // filter criteria
}
// forMessage returns a filtered header layout, removing rows whose headers
// do not appear in the provided message.
func (filter HeaderLayoutFilter) forMessage(msg *models.MessageInfo) HeaderLayout {
result := make(HeaderLayout, 0, len(filter.layout))
for _, row := range filter.layout {
// To preserve layout alignment, only hide rows if all columns are empty
for _, col := range row {
if filter.keep(msg, col) {
result = append(result, row)
break
}
}
}
return result
}
// grid builds a ui grid, populating each cell by calling a callback function
// with the current header string.
func (layout HeaderLayout) grid(cb func(string) ui.Drawable) (grid *ui.Grid, height int) {
rowCount := len(layout)
grid = ui.MakeGrid(rowCount, 1, ui.SIZE_EXACT, ui.SIZE_WEIGHT)
for i, cols := range layout {
r := ui.MakeGrid(1, len(cols), ui.SIZE_EXACT, ui.SIZE_WEIGHT)
for j, col := range cols {
r.AddChild(cb(col)).At(0, j)
}
grid.AddChild(r).At(i, 0)
}
return grid, rowCount
}
|
