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
|
package context
import (
"fmt"
"github.com/jesseduffield/lazygit/pkg/gui/types"
)
type ListContextTrait struct {
types.Context
ListRenderer
c *ContextCommon
// Some contexts, like the commit context, will highlight the path from the selected commit
// to its parents, because it's ambiguous otherwise. For these, we need to refresh the viewport
// so that we show the highlighted path.
// TODO: now that we allow scrolling, we should be smarter about what gets refreshed:
// we should find out exactly which lines are now part of the path and refresh those.
// We should also keep track of the previous path and refresh those lines too.
refreshViewportOnChange bool
}
func (self *ListContextTrait) IsListContext() {}
func (self *ListContextTrait) FocusLine() {
// Doing this at the end of the layout function because we need the view to be
// resized before we focus the line, otherwise if we're in accordion mode
// the view could be squashed and won't how to adjust the cursor/origin
self.c.AfterLayout(func() error {
oldOrigin, _ := self.GetViewTrait().ViewPortYBounds()
self.GetViewTrait().FocusPoint(
self.ModelIndexToViewIndex(self.list.GetSelectedLineIdx()))
selectRangeIndex, isSelectingRange := self.list.GetRangeStartIdx()
if isSelectingRange {
selectRangeIndex = self.ModelIndexToViewIndex(selectRangeIndex)
self.GetViewTrait().SetRangeSelectStart(selectRangeIndex)
} else {
self.GetViewTrait().CancelRangeSelect()
}
// If FocusPoint() caused the view to scroll (because the selected line
// was out of view before), we need to rerender the view port again.
// This can happen when pressing , or . to scroll by pages, or < or > to
// jump to the top or bottom.
newOrigin, _ := self.GetViewTrait().ViewPortYBounds()
if self.refreshViewportOnChange && oldOrigin != newOrigin {
self.refreshViewport()
}
return nil
})
self.setFooter()
if self.refreshViewportOnChange {
self.refreshViewport()
}
}
func (self *ListContextTrait) refreshViewport() {
startIdx, length := self.GetViewTrait().ViewPortYBounds()
content := self.renderLines(startIdx, startIdx+length)
self.GetViewTrait().SetViewPortContent(content)
}
func (self *ListContextTrait) setFooter() {
self.GetViewTrait().SetFooter(formatListFooter(self.list.GetSelectedLineIdx(), self.list.Len()))
}
func formatListFooter(selectedLineIdx int, length int) string {
return fmt.Sprintf("%d of %d", selectedLineIdx+1, length)
}
func (self *ListContextTrait) HandleFocus(opts types.OnFocusOpts) error {
self.FocusLine()
self.GetViewTrait().SetHighlight(self.list.Len() > 0)
return self.Context.HandleFocus(opts)
}
func (self *ListContextTrait) HandleFocusLost(opts types.OnFocusLostOpts) error {
self.GetViewTrait().SetOriginX(0)
if self.refreshViewportOnChange {
self.refreshViewport()
}
return self.Context.HandleFocusLost(opts)
}
// OnFocus assumes that the content of the context has already been rendered to the view. OnRender is the function which actually renders the content to the view
func (self *ListContextTrait) HandleRender() error {
self.list.ClampSelection()
content := self.renderLines(-1, -1)
self.GetViewTrait().SetContent(content)
self.c.Render()
self.setFooter()
return nil
}
func (self *ListContextTrait) OnSearchSelect(selectedLineIdx int) error {
self.GetList().SetSelection(selectedLineIdx)
return self.HandleFocus(types.OnFocusOpts{})
}
func (self *ListContextTrait) IsItemVisible(item types.HasUrn) bool {
startIdx, length := self.GetViewTrait().ViewPortYBounds()
selectionStart := self.ViewIndexToModelIndex(startIdx)
selectionEnd := self.ViewIndexToModelIndex(startIdx + length)
for i := selectionStart; i < selectionEnd; i++ {
iterItem := self.GetList().GetItem(i)
if iterItem != nil && iterItem.URN() == item.URN() {
return true
}
}
return false
}
|
