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package tui
import (
"github.com/rivo/uniseg"
"strings"
)
var menuStyle = Style {Fg: Black, Bg: Yellow}
var menuState struct {
open bool
x, y int
width, height int
boxId string
menu []string
selected string
}
func MenuOption(name string) bool {
b := top()
b.contextMenu = append(b.contextMenu, name)
if menuState.boxId == top().id && menuState.selected == name {
menuState.selected = ""
return true
}
return false
}
func openContextMenu(x int, y int, b *Box) {
menuState.open = true
menuState.boxId = b.id
menuState.menu = b.contextMenu
menuState.height = len(menuState.menu)
for _, option := range menuState.menu {
menuState.width = max(menuState.width, uniseg.StringWidth(option))
}
size := Size()
if x + menuState.width < size.Width {
menuState.x = x + 1
} else {
menuState.x = x - menuState.width - 1
}
if y + menuState.height < size.Height {
menuState.y = y
} else {
menuState.y = y - menuState.height
}
}
func processContextMenu(ev MouseEvent) {
for i, option := range menuState.menu {
x, y := menuState.x, menuState.y + i
if ev.Button <= 2 && (ev.Pressed || ev.Released) &&
ev.X >= x && ev.X < x + menuState.width && ev.Y == y {
menuState.selected = option
menuState.open = false
}
}
if ev.Button <= 2 && ev.Pressed {
menuState.open = false
}
}
func drawContextMenu() {
if !menuState.open {
return
}
for i, option := range menuState.menu {
x, y := menuState.x, menuState.y + i
WriteAt(x, y, strings.Repeat(" ", menuState.width), menuStyle)
WriteAt(x, y, option, menuStyle)
}
}
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