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Remove entire subscription model

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It was a valiant effort, and the implementation was solid and
dependable, but at the end of the day we can achieve the same
functionality in a much simpler fashion with commands, especially
because Go is not held to the same restrictions as Elm.
This commit is contained in:
Christian Rocha
2020-05-12 17:56:30 -04:00
parent 82ddbb8e12
commit ade8203c21
13 changed files with 136 additions and 322 deletions
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58
examples/textinputs/main.go
View File

@@ -23,7 +23,6 @@ func main() {
initialize,
update,
view,
subscriptions,
).Start(); err != nil {
fmt.Printf("could not start program: %s\n", err)
os.Exit(1)
@@ -53,7 +52,13 @@ func initialize() (boba.Model, boba.Cmd) {
email.Placeholder = "Email"
email.Prompt = blurredPrompt
return Model{0, name, nickName, email, blurredSubmitButton}, nil
return Model{0, name, nickName, email, blurredSubmitButton},
boba.Batch(
input.Blink(name),
input.Blink(nickName),
input.Blink(email),
)
}
func update(msg boba.Msg, model boba.Model) (boba.Model, boba.Cmd) {
@@ -62,6 +67,8 @@ func update(msg boba.Msg, model boba.Model) (boba.Model, boba.Cmd) {
panic("could not perform assertion on model")
}
var cmd boba.Cmd
switch msg := msg.(type) {
case boba.KeyMsg:
@@ -135,44 +142,29 @@ func update(msg boba.Msg, model boba.Model) (boba.Model, boba.Cmd) {
default:
// Handle character input
m = updateInputs(msg, m)
return m, nil
m, cmd = updateInputs(msg, m)
return m, cmd
}
default:
// Handle blinks
m = updateInputs(msg, m)
return m, nil
m, cmd = updateInputs(msg, m)
return m, cmd
}
}
func updateInputs(msg boba.Msg, m Model) Model {
m.nameInput, _ = input.Update(msg, m.nameInput)
m.nickNameInput, _ = input.Update(msg, m.nickNameInput)
m.emailInput, _ = input.Update(msg, m.emailInput)
return m
}
func subscriptions(model boba.Model) boba.Subs {
m, ok := model.(Model)
if !ok {
return nil
}
// It's a little hacky, but we're using the subscription from one
// input element to handle the blinking for all elements. It doesn't
// have to be this way, we're just feeling a bit lazy at the moment.
inputSub, err := input.MakeSub(m.nameInput)
if err != nil {
return nil
}
return boba.Subs{
// It's a little hacky, but we're using the subscription from one
// input element to handle the blinking for all elements. It doesn't
// have to be this way, we're just feeling a bit lazy at the moment.
"blink": inputSub,
}
func updateInputs(msg boba.Msg, m Model) (Model, boba.Cmd) {
var (
cmd boba.Cmd
cmds []boba.Cmd
)
m.nameInput, cmd = input.Update(msg, m.nameInput)
cmds = append(cmds, cmd)
m.nickNameInput, cmd = input.Update(msg, m.nickNameInput)
cmds = append(cmds, cmd)
m.emailInput, cmd = input.Update(msg, m.emailInput)
cmds = append(cmds, cmd)
return m, boba.Batch(cmds...)
}
func view(model boba.Model) string {