Add more complex example using TailwindCSS (#71)

examples/tailwindcss/tailwindcss.go

@@ -0,0 +1,125 @@
+package main
+
+import (
+	"net/http"
+	"time"
+
+	g "github.com/maragudk/gomponents"
+	c "github.com/maragudk/gomponents/components"
+	. "github.com/maragudk/gomponents/html"
+)
+
+func main() {
+	http.Handle("/", createHandler(indexPage()))
+	http.Handle("/contact", createHandler(contactPage()))
+	http.Handle("/about", createHandler(aboutPage()))
+
+	_ = http.ListenAndServe("localhost:8080", nil)
+}
+
+func createHandler(title string, body g.Node) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		// Rendering a Node is as simple as calling Render and passing an io.Writer
+		_ = Page(title, r.URL.Path, body).Render(w)
+	}
+}
+
+func indexPage() (string, g.Node) {
+	return "Welcome!", Div(
+		H1(g.Text("Welcome to this example page")),
+		P(g.Text("I hope it will make you happy. 😄 It's using TailwindCSS for styling.")),
+	)
+}
+
+func contactPage() (string, g.Node) {
+	return "Contact", Div(
+		H1(g.Text("Contact us")),
+		P(g.Text("Just do it.")),
+	)
+}
+
+func aboutPage() (string, g.Node) {
+	return "About", Div(
+		H1(g.Text("About this site")),
+		P(g.Text("This is a site showing off gomponents.")),
+	)
+}
+
+func Page(title, path string, body g.Node) g.Node {
+	// HTML5 boilerplate document
+	return c.HTML5(c.HTML5Props{
+		Title:    title,
+		Language: "en",
+		Head: []g.Node{
+			Link(Rel("stylesheet"), Href("https://unpkg.com/tailwindcss@^2.1.x/dist/base.min.css")),
+			Link(Rel("stylesheet"), Href("https://unpkg.com/tailwindcss@^2.1.x/dist/components.min.css")),
+			Link(Rel("stylesheet"), Href("https://unpkg.com/@tailwindcss/typography@0.4.x/dist/typography.min.css")),
+			Link(Rel("stylesheet"), Href("https://unpkg.com/tailwindcss@^2.1.x/dist/utilities.min.css")),
+		},
+		Body: []g.Node{
+			Navbar(path, []PageLink{
+				{Path: "/contact", Name: "Contact"},
+				{Path: "/about", Name: "About"},
+			}),
+			Container(
+				Prose(body),
+				PageFooter(),
+			),
+		},
+	})
+}
+
+type PageLink struct {
+	Path string
+	Name string
+}
+
+func Navbar(currentPath string, links []PageLink) g.Node {
+	return Nav(Class("bg-gray-700 mb-4"),
+		Container(
+			Div(Class("flex items-center space-x-4 h-16"),
+				NavbarLink("/", "Home", currentPath == "/"),
+
+				// We can Map custom slices to Nodes
+				g.Group(g.Map(len(links), func(i int) g.Node {
+					return NavbarLink(links[i].Path, links[i].Name, currentPath == links[i].Path)
+				})),
+			),
+		),
+	)
+}
+
+// NavbarLink is a link in the Navbar.
+func NavbarLink(path, text string, active bool) g.Node {
+	return A(Href(path), g.Text(text),
+		// Apply CSS classes conditionally
+		c.Classes{
+			"px-3 py-2 rounded-md text-sm font-medium focus:outline-none focus:text-white focus:bg-gray-700": true,
+			"text-white bg-gray-900":                           active,
+			"text-gray-300 hover:text-white hover:bg-gray-700": !active,
+		},
+	)
+}
+
+func Container(children ...g.Node) g.Node {
+	return Div(Class("max-w-7xl mx-auto px-2 sm:px-6 lg:px-8"), g.Group(children))
+}
+
+func Prose(children ...g.Node) g.Node {
+	return Div(Class("prose"), g.Group(children))
+}
+
+func PageFooter() g.Node {
+	return Footer(Class("prose prose-sm prose-indigo"),
+		P(
+			// We can use string interpolation directly, like fmt.Sprintf.
+			g.Textf("Rendered %v. ", time.Now().Format(time.RFC3339)),
+
+			// Conditional inclusion
+			g.If(time.Now().Second()%2 == 0, g.Text("It's an even second.")),
+			g.If(time.Now().Second()%2 == 1, g.Text("It's an odd second.")),
+		),
+
+		P(A(Href("https://www.gomponents.com"), g.Text("gomponents"))),
+	)
+}