Added htmx package.

htmx/htmx.go

@@ -0,0 +1,78 @@
+package htmx
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo/v4"
+)
+
+//  Headers (https://.org/docs/#requests)
+const (
+	HeaderRequest            = "HX-Request"
+	HeaderBoosted            = "HX-Boosted"
+	HeaderTrigger            = "HX-Trigger"
+	HeaderTriggerName        = "HX-Trigger-Name"
+	HeaderTriggerAfterSwap   = "HX-Trigger-After-Swap"
+	HeaderTriggerAfterSettle = "HX-Trigger-After-Settle"
+	HeaderTarget             = "HX-Target"
+	HeaderPrompt             = "HX-Prompt"
+	HeaderPush               = "HX-Push"
+	HeaderRedirect           = "HX-Redirect"
+	HeaderRefresh            = "HX-Refresh"
+)
+
+type (
+	Request struct {
+		Enabled     bool
+		Boosted     bool
+		Trigger     string
+		TriggerName string
+		Target      string
+		Prompt      string
+	}
+
+	Response struct {
+		Push               string
+		Redirect           string
+		Refresh            bool
+		Trigger            string
+		TriggerAfterSwap   string
+		TriggerAfterSettle string
+		NoContent          bool
+	}
+)
+
+func GetRequest(ctx echo.Context) Request {
+	return Request{
+		Enabled:     ctx.Request().Header.Get(HeaderRequest) == "true",
+		Boosted:     ctx.Request().Header.Get(HeaderBoosted) == "true",
+		Trigger:     ctx.Request().Header.Get(HeaderTrigger),
+		TriggerName: ctx.Request().Header.Get(HeaderTriggerName),
+		Target:      ctx.Request().Header.Get(HeaderTarget),
+		Prompt:      ctx.Request().Header.Get(HeaderPrompt),
+	}
+}
+
+func (r *Response) Apply(ctx echo.Context) {
+	if r.Push != "" {
+		ctx.Response().Header().Set(HeaderPush, r.Push)
+	}
+	if r.Redirect != "" {
+		ctx.Response().Header().Set(HeaderRedirect, r.Redirect)
+	}
+	if r.Refresh {
+		ctx.Response().Header().Set(HeaderRefresh, "true")
+	}
+	if r.Trigger != "" {
+		ctx.Response().Header().Set(HeaderTrigger, r.Trigger)
+	}
+	if r.TriggerAfterSwap != "" {
+		ctx.Response().Header().Set(HeaderTriggerAfterSwap, r.TriggerAfterSwap)
+	}
+	if r.TriggerAfterSettle != "" {
+		ctx.Response().Header().Set(HeaderTriggerAfterSettle, r.TriggerAfterSettle)
+	}
+	if r.NoContent {
+		ctx.Response().Status = http.StatusNoContent
+	}
+}