Started on HTMX support.

controller/htmx.go

@@ -0,0 +1,48 @@
+package controller
+
+import (
+	"github.com/labstack/echo/v4"
+)
+
+// HTMX headers (https://htmx.org/docs/#requests)
+const (
+	HTMXHeaderRequest            = "HX-Request"
+	HTMXHeaderTrigger            = "HX-Trigger"
+	HTMXHeaderTriggerName        = "HX-Trigger-Name"
+	HTMXHeaderTriggerAfterSwap   = "HX-Trigger-After-Swap"
+	HTMXHeaderTriggerAfterSettle = "HX-Trigger-After-Settle"
+	HTMXHeaderTarget             = "HX-Target"
+	HTMXHeaderPrompt             = "HX-Prompt"
+	HTMXHeaderPush               = "HX-Push"
+	HTMXHeaderRedirect           = "HX-Redirect"
+	HTMXHeaderRefresh            = "HX-Refresh"
+)
+
+type (
+	HTMXRequest struct {
+		Enabled     bool
+		Trigger     string
+		TriggerName string
+		Target      string
+		Prompt      string
+	}
+
+	HTMXResponse struct {
+		Push               string
+		Redirect           string
+		Refresh            bool
+		Trigger            string
+		TriggerAfterSwap   string
+		TriggerAfterSettle string
+	}
+)
+
+func NewHTMXRequest(ctx echo.Context) HTMXRequest {
+	return HTMXRequest{
+		Enabled:     ctx.Request().Header.Get(HTMXHeaderRequest) == "true",
+		Trigger:     ctx.Request().Header.Get(HTMXHeaderTrigger),
+		TriggerName: ctx.Request().Header.Get(HTMXHeaderTriggerName),
+		Target:      ctx.Request().Header.Get(HTMXHeaderTarget),
+		Prompt:      ctx.Request().Header.Get(HTMXHeaderPrompt),
+	}
+}