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-rw-r--r--widgets/selector.go107
1 files changed, 107 insertions, 0 deletions
diff --git a/widgets/selector.go b/widgets/selector.go
new file mode 100644
index 00000000..d19d38f6
--- /dev/null
+++ b/widgets/selector.go
@@ -0,0 +1,107 @@
+package widgets
+
+import (
+ "github.com/gdamore/tcell"
+
+ "git.sr.ht/~sircmpwn/aerc/config"
+ "git.sr.ht/~sircmpwn/aerc/lib/ui"
+)
+
+type Selector struct {
+ ui.Invalidatable
+ chooser bool
+ focused bool
+ focus int
+ options []string
+ uiConfig config.UIConfig
+
+ onChoose func(option string)
+ onSelect func(option string)
+}
+
+func NewSelector(options []string, focus int, uiConfig config.UIConfig) *Selector {
+ return &Selector{
+ focus: focus,
+ options: options,
+ uiConfig: uiConfig,
+ }
+}
+
+func (sel *Selector) Chooser(chooser bool) *Selector {
+ sel.chooser = chooser
+ return sel
+}
+
+func (sel *Selector) Invalidate() {
+ sel.DoInvalidate(sel)
+}
+
+func (sel *Selector) Draw(ctx *ui.Context) {
+ ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ',
+ sel.uiConfig.GetStyle(config.STYLE_SELECTOR_DEFAULT))
+ x := 2
+ for i, option := range sel.options {
+ style := sel.uiConfig.GetStyle(config.STYLE_SELECTOR_DEFAULT)
+ if sel.focus == i {
+ if sel.focused {
+ style = sel.uiConfig.GetStyle(config.STYLE_SELECTOR_FOCUSED)
+ } else if sel.chooser {
+ style = sel.uiConfig.GetStyle(config.STYLE_SELECTOR_CHOOSER)
+ }
+ }
+ x += ctx.Printf(x, 1, style, "[%s]", option)
+ x += 5
+ }
+}
+
+func (sel *Selector) OnChoose(fn func(option string)) *Selector {
+ sel.onChoose = fn
+ return sel
+}
+
+func (sel *Selector) OnSelect(fn func(option string)) *Selector {
+ sel.onSelect = fn
+ return sel
+}
+
+func (sel *Selector) Selected() string {
+ return sel.options[sel.focus]
+}
+
+func (sel *Selector) Focus(focus bool) {
+ sel.focused = focus
+ sel.Invalidate()
+}
+
+func (sel *Selector) Event(event tcell.Event) bool {
+ switch event := event.(type) {
+ case *tcell.EventKey:
+ switch event.Key() {
+ case tcell.KeyCtrlH:
+ fallthrough
+ case tcell.KeyLeft:
+ if sel.focus > 0 {
+ sel.focus--
+ sel.Invalidate()
+ }
+ if sel.onSelect != nil {
+ sel.onSelect(sel.Selected())
+ }
+ case tcell.KeyCtrlL:
+ fallthrough
+ case tcell.KeyRight:
+ if sel.focus < len(sel.options)-1 {
+ sel.focus++
+ sel.Invalidate()
+ }
+ if sel.onSelect != nil {
+ sel.onSelect(sel.Selected())
+ }
+ case tcell.KeyEnter:
+ if sel.onChoose != nil {
+ sel.onChoose(sel.Selected())
+ }
+ }
+ }
+ return false
+}