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itemview.go
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itemview.go
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package components
import (
"fmt"
"github.com/octoberswimmer/masc"
"github.com/octoberswimmer/masc/elem"
"github.com/octoberswimmer/masc/event"
"github.com/octoberswimmer/masc/prop"
"github.com/octoberswimmer/masc/style"
)
// ItemView is a masc.Component which represents a single item in the TODO
// list.
type ItemView struct {
masc.Core
Index int `masc:"prop"`
Title string `masc:"prop"`
Completed bool `masc:"prop"`
Editing bool `masc:"prop"`
EditTitle string `masc:"prop"`
input *masc.HTML
}
// Key implements the masc.Keyer interface.
func (p *ItemView) Key() interface{} {
return p.Index
}
type StartEdit struct {
Index int
}
type Destroy struct {
Index int
}
type UpdateCompleted struct {
Index int
Completed bool
}
type StopEdit struct {
Index int
}
type EditInput struct {
Index int
Title string
}
func (p *ItemView) onDestroy(send func(masc.Msg)) func(*masc.Event) {
return func(event *masc.Event) {
send(Destroy{p.Index})
}
}
func (p *ItemView) onToggleCompleted(send func(masc.Msg)) func(*masc.Event) {
return func(event *masc.Event) {
send(UpdateCompleted{
Index: p.Index,
Completed: event.Target.Get("checked").Bool(),
})
}
}
func (p *ItemView) onStartEdit(send func(masc.Msg)) func(*masc.Event) {
return func(event *masc.Event) {
send(StartEdit{p.Index})
}
}
func (p *ItemView) onEditInput(send func(masc.Msg)) func(*masc.Event) {
return func(event *masc.Event) {
send(EditInput{p.Index, event.Target.Get("value").String()})
}
}
func (p *ItemView) onStopEdit(send func(masc.Msg)) func(*masc.Event) {
return func(event *masc.Event) {
send(StopEdit{p.Index})
}
}
// Render implements the masc.Component interface.
func (p *ItemView) Render(send func(masc.Msg)) masc.ComponentOrHTML {
p.input = elem.Input(
masc.Markup(
masc.Class("edit"),
masc.Attribute("id", fmt.Sprintf("input-%d", p.Index)),
prop.Value(p.EditTitle),
event.Input(p.onEditInput(send)),
),
)
return elem.ListItem(
masc.Markup(
masc.ClassMap{
"completed": p.Completed,
"editing": p.Editing,
},
),
elem.Div(
masc.Markup(
masc.Class("view"),
),
elem.Input(
masc.Markup(
masc.Class("toggle"),
prop.Type(prop.TypeCheckbox),
prop.Checked(p.Completed),
event.Change(p.onToggleCompleted(send)),
),
),
elem.Label(
masc.Markup(
event.DoubleClick(p.onStartEdit(send)),
),
masc.Text(p.Title),
),
elem.Button(
masc.Markup(
masc.Class("destroy"),
event.Click(p.onDestroy(send)),
),
),
),
elem.Form(
masc.Markup(
style.Margin(style.Px(0)),
event.Submit(p.onStopEdit(send)).PreventDefault(),
),
p.input,
),
)
}
func (p *ItemView) Copy() masc.Component {
cpy := *p
return &cpy
}