feat: portal loop's main contracts and gnoweb improvements

examples/gno.land/p/demo/blog/blog.gno

@@ -13,13 +13,28 @@ import (
 )
 
 type Blog struct {
-	Title  string
-	Prefix string   // i.e. r/gnoland/blog:
-	Posts  avl.Tree // slug -> Post
+	Title        string
+	Prefix       string   // i.e. r/gnoland/blog:
+	Posts        avl.Tree // slug -> Post
+	NoBreadcrumb bool
+}
+
+func (b Blog) RenderLastPostsWidget(limit int) string {
+	output := ""
+	i := 0
+	b.Posts.Iterate("", "", func(key string, value interface{}) bool {
+		p := value.(*Post)
+		output += ufmt.Sprintf("- [%s](%s)\n", p.Title, p.URL())
+		i++
+		return i >= limit
+	})
+	return output
 }
 
 func (b Blog) RenderHome(res *mux.ResponseWriter, req *mux.Request) {
-	res.Write(breadcrumb([]string{b.Title}))
+	if !b.NoBreadcrumb {
+		res.Write(breadcrumb([]string{b.Title}))
+	}
 
 	if b.Posts.Size() == 0 {
 		res.Write("No posts.")
@@ -47,12 +62,14 @@ func (b Blog) RenderPost(res *mux.ResponseWriter, req *mux.Request) {
 	}
 	p := post.(*Post)
 
-	breadStr := breadcrumb([]string{
-		ufmt.Sprintf("[%s](%s)", b.Title, b.Prefix),
-		"p",
-		p.Title,
-	})
-	res.Write(breadStr)
+	if !b.NoBreadcrumb {
+		breadStr := breadcrumb([]string{
+			ufmt.Sprintf("[%s](%s)", b.Title, b.Prefix),
+			"p",
+			p.Title,
+		})
+		res.Write(breadStr)
+	}
 
 	// output += ufmt.Sprintf("## [%s](%s)\n", p.Title, p.URL())
 	res.Write(p.Body + "\n\n")
@@ -75,12 +92,14 @@ func (b Blog) RenderTag(res *mux.ResponseWriter, req *mux.Request) {
 		return
 	}
 
-	breadStr := breadcrumb([]string{
-		ufmt.Sprintf("[%s](%s)", b.Title, b.Prefix),
-		"t",
-		slug,
-	})
-	res.Write(breadStr)
+	if !b.NoBreadcrumb {
+		breadStr := breadcrumb([]string{
+			ufmt.Sprintf("[%s](%s)", b.Title, b.Prefix),
+			"t",
+			slug,
+		})
+		res.Write(breadStr)
+	}
 
 	nb := 0
 	b.Posts.Iterate("", "", func(key string, value interface{}) bool {

examples/gno.land/p/demo/ui/ui.gno

@@ -1,6 +1,9 @@
 package ui
 
-import "strings"
+import (
+	"strconv"
+	"strings"
+)
 
 type DOM struct {
 	// metadata
@@ -56,6 +59,17 @@ func (dom DOM) String() string {
 	return output
 }
 
+type Jumbotron []DomStringer
+
+func (j Jumbotron) String(dom DOM) string {
+	output := `<div class="jumbotron">` + "\n\n"
+	for _, elem := range j {
+		output += elem.String(dom) + "\n"
+	}
+	output += `</div><!-- /jumbotron -->` + "\n"
+	return output
+}
+
 // XXX: rename Element to Div?
 type Element []DomStringer
 
@@ -88,6 +102,26 @@ func (b Breadcrumb) String(dom DOM) string {
 	return output
 }
 
+type Columns struct {
+	MaxWidth int
+	Columns  []Element
+}
+
+func (c *Columns) Append(elems ...Element) {
+	c.Columns = append(c.Columns, elems...)
+}
+
+func (c Columns) String(dom DOM) string {
+	output := `<div class="columns-` + strconv.Itoa(c.MaxWidth) + `">` + "\n"
+	for _, entry := range c.Columns {
+		output += `<div class="column">` + "\n\n"
+		output += entry.String(dom)
+		output += "</div><!-- /column-->\n"
+	}
+	output += "</div><!-- /columns-" + strconv.Itoa(c.MaxWidth) + " -->\n"
+	return output
+}
+
 type Link struct {
 	Text string
 	Path string
@@ -104,8 +138,14 @@ func (l Link) String(dom DOM) string {
 	case l.Path != "" && l.URL != "":
 		panic("a link should have a path or a URL, not both.")
 	case l.Path != "":
+		if l.Text == "" {
+			l.Text = l.Path
+		}
 		url = dom.Prefix + l.Path
 	case l.URL != "":
+		if l.Text == "" {
+			l.Text = l.URL
+		}
 		url = l.URL
 	}
 
@@ -151,6 +191,7 @@ type (
 	Italic    string
 	Code      string
 	Paragraph string
+	Quote     string
 	HR        struct{}
 )
 
@@ -160,6 +201,7 @@ func (text H3) String(_ DOM) string        { return "### " + string(text) + "\n"
 func (text H4) String(_ DOM) string        { return "#### " + string(text) + "\n" }
 func (text H5) String(_ DOM) string        { return "##### " + string(text) + "\n" }
 func (text H6) String(_ DOM) string        { return "###### " + string(text) + "\n" }
+func (text Quote) String(_ DOM) string     { return "> " + string(text) + "\n" }
 func (text Bold) String(_ DOM) string      { return "**" + string(text) + "**" }
 func (text Italic) String(_ DOM) string    { return "_" + string(text) + "_" }
 func (text Paragraph) String(_ DOM) string { return "\n" + string(text) + "\n" }

examples/gno.land/r/gnoland/blog/gnoblog.gno

@@ -23,3 +23,7 @@ func AddComment(postSlug, comment string) {
 func Render(path string) string {
 	return b.Render(path)
 }
+
+func RenderLastPostsWidget(limit int) string {
+	return b.RenderLastPostsWidget(limit)
+}

examples/gno.land/r/gnoland/home/gno.mod

@@ -0,0 +1,8 @@
+module gno.land/r/gnoland/home
+
+require (
+	"gno.land/r/gnoland/blog" v0.0.0-latest
+	"gno.land/p/demo/ufmt" v0.0.0-latest
+	"gno.land/p/demo/avl" v0.0.0-latest
+	"gno.land/p/demo/ui" v0.0.0-latest
+)