mirror of https://github.com/bcicen/ctop.git
91 lines
1.7 KiB
Go
91 lines
1.7 KiB
Go
package widgets
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import (
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"strings"
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ui "github.com/gizak/termui"
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)
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var (
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input_chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_."
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)
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type Padding [2]int // x,y padding
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type Input struct {
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ui.Block
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Label string
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Data string
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MaxLen int
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TextFgColor ui.Attribute
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TextBgColor ui.Attribute
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stream chan string // stream text as it changes
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padding Padding
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}
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func NewInput() *Input {
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i := &Input{
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Block: *ui.NewBlock(),
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Label: "input",
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MaxLen: 20,
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TextFgColor: ui.ThemeAttr("menu.text.fg"),
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TextBgColor: ui.ThemeAttr("menu.text.bg"),
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padding: Padding{4, 2},
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}
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i.BorderFg = ui.ThemeAttr("menu.border.fg")
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i.BorderLabelFg = ui.ThemeAttr("menu.label.fg")
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i.calcSize()
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return i
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}
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func (i *Input) calcSize() {
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i.Height = 3 // minimum height
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i.Width = i.MaxLen + (i.padding[0] * 2)
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}
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func (i *Input) Buffer() ui.Buffer {
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var cell ui.Cell
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buf := i.Block.Buffer()
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x := i.Block.X + i.padding[0]
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y := i.Block.Y + 1
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for _, ch := range i.Data {
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cell = ui.Cell{Ch: ch, Fg: i.TextFgColor, Bg: i.TextBgColor}
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buf.Set(x, y, cell)
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x++
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}
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return buf
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}
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func (i *Input) Stream() chan string {
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i.stream = make(chan string)
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return i.stream
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}
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func (i *Input) KeyPress(e ui.Event) {
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ch := strings.Replace(e.Path, "/sys/kbd/", "", -1)
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if ch == "C-8" {
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idx := len(i.Data) - 1
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if idx > -1 {
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i.Data = i.Data[0:idx]
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i.stream <- i.Data
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}
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ui.Render(i)
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return
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}
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if len(i.Data) >= i.MaxLen {
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return
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}
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if strings.Contains(input_chars, ch) {
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i.Data += ch
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i.stream <- i.Data
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ui.Render(i)
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}
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}
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// Setup some default handlers for menu navigation
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func (i *Input) InputHandlers() {
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ui.Handle("/sys/kbd/", i.KeyPress)
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}
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