refactor: move cation trigger logic to its own file; separate conter and greeter examples

actiontrigger.go

@@ -0,0 +1,18 @@
+package via
+
+import (
+	"fmt"
+
+	"github.com/go-via/via/h"
+)
+
+// actionTrigger represents a trigger to an event handler fn
+type actionTrigger struct {
+	id string
+}
+
+// OnClick returns a via.h DOM node that triggers on click. It can be added
+// to other nodes in a view.
+func (a *actionTrigger) OnClick() h.H {
+	return h.Data("on:click", fmt.Sprintf("@get('/_action/%s')", a.id))
+}

internal/examples/counter/main.go

@@ -15,20 +15,11 @@ func main() {
 		s := CounterState{Count: 0}
 
 		step := c.Signal(1)
-		greeting := c.Signal("Hello...")
 
 		increment := c.Action(func() {
 			s.Count += step.Int()
 			c.Sync()
 		})
-		greetBob := c.Action(func() {
-			greeting.SetValue("Hello Bob!")
-			c.SyncSignals()
-		})
-		greetAlice := c.Action(func() {
-			greeting.SetValue("Hello Alice!")
-			c.SyncSignals()
-		})
 
 		c.View(func() h.H {
 			return h.Div(
@@ -39,10 +30,6 @@ func main() {
 					h.Input(h.Type("number"), step.Bind()),
 				),
 				h.Button(h.Text("Increment"), increment.OnClick()),
-
-				h.P(h.Span(h.Text("Greeting: ")), h.Span(greeting.Text())),
-				h.Button(h.Text("Greet Alice"), greetBob.OnClick()),
-				h.Button(h.Text("Greet Alice"), greetAlice.OnClick()),
 			)
 		})
 	})

internal/examples/greeter/main.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"github.com/go-via/via"
+	"github.com/go-via/via/h"
+)
+
+func main() {
+	v := via.New()
+
+	v.Page("/", func(c *via.Context) {
+
+		greeting := c.Signal("Hello...")
+
+		greetBob := c.Action(func() {
+			greeting.SetValue("Hello Bob!")
+			c.SyncSignals()
+		})
+		greetAlice := c.Action(func() {
+			greeting.SetValue("Hello Alice!")
+			c.SyncSignals()
+		})
+
+		c.View(func() h.H {
+			return h.Div(
+				h.P(h.Span(h.Text("Greeting: ")), h.Span(greeting.Text())),
+				h.Button(h.Text("Greet Bob"), greetBob.OnClick()),
+				h.Button(h.Text("Greet Alice"), greetAlice.OnClick()),
+			)
+		})
+	})
+
+	v.Start(":3000")
+}