Add paging links to web feed

README.md

@@ -98,7 +98,7 @@ Parity features
 
 * [x] web feed supports item TTS
 * [x] item punt
-* [ ] web feed paging
+* [x] web feed paging
 * [ ] web fetch
 * [ ] set a working directory for item actions
 * [ ] crontab integration

test/test_items.sh

@@ -37,5 +37,12 @@ tmp/intake channel add -c all -s spook
 
 tmp/intake channel add -c none -s nothing
 
+tmp/intake source add -s page
+tmp/intake item add -s page --id 1 --title "Item 1" --body "This is the body of item 1"
+for i in $(seq 2 211); do
+    tmp/intake item add -s page --id $i --title "Item $i" --body "This is the body of item $i" 2>/dev/null
+done
+tmp/intake item add -s page --id 212 --title "Item 212" --body "This is the body of item 212"
+
 echo "hello" | tmp/intake passwd --stdin
 echo "hello" | tmp/intake passwd --stdin --verify

web/channel.go

@@ -10,13 +10,16 @@ import (
 func (env *Env) getChannel(writer http.ResponseWriter, req *http.Request) {
 	channel := req.PathValue("channel")
 
+	page := getQueryInt(req, "page", 1)
+	count := getQueryInt(req, "count", core.DefaultFeedLimit)
+	showHidden := getQueryInt(req, "hidden", 0)
+
 	var items []core.Item
 	var err error
-	inactive := req.URL.Query().Get("inactive") == "1"
+	if showHidden != 0 {
-	if inactive {
+		items, err = core.GetAllItemsForChannel(env.db, channel, (page-1)*count, count)
-		items, err = core.GetAllItemsForChannel(env.db, channel, 0, core.DefaultFeedLimit)
 	} else {
-		items, err = core.GetActiveItemsForChannel(env.db, channel, 0, core.DefaultFeedLimit)
+		items, err = core.GetActiveItemsForChannel(env.db, channel, (page-1)*count, count)
 	}
 	if err != nil {
 		http.Error(writer, err.Error(), 500)
@@ -25,6 +28,9 @@ func (env *Env) getChannel(writer http.ResponseWriter, req *http.Request) {
 
 	data := html.FeedData{
 		Items:      items,
+		ShowHidden: showHidden,
+		Page:       page,
+		Count:      count,
 	}
 	html.Feed(writer, data)
 }

web/html/feed.html

@@ -2,9 +2,17 @@
 
 {{ define "content" -}}
 <article class="center">
-<span class="feed-controls">
+<span class="feed-controls" style="display: flex; justify-content: space-between;">
+<a href="?hidden={{ .ShowHidden }}&page={{ page .Page -1 }}&count={{ .Count }}">&lt;--</a>
 <a href="/">Home</a>
-[<a href="?inactive=0">Active</a> | <a href="?inactive=1">All</a>]
+<span>
+    {{ if .ShowHidden -}}
+    [ <a href="?hidden=0&page={{ .Page }}&count={{ .Count }}">Active</a> | All ]
+    {{- else -}}
+    [ Active | <a href="?hidden=1&page={{ .Page }}&count={{ .Count }}">All</a> ]
+    {{- end }}
+</span>
+<a href="?hidden={{ .ShowHidden }}&page={{ page .Page 1 }}&count={{ .Count }}">--&gt;</a>
 </span>
 </article>
 

web/html/html.go

@@ -61,12 +61,21 @@ func massDeactivateVals(items []core.Item) string {
 	return string(vals)
 }
 
+func page(i int, delta int) int {
+	i = i + delta
+	if i < 1 {
+		return 1
+	}
+	return i
+}
+
 var funcs = template.FuncMap{
 	"raw":          rawHtml,
 	"dateFormat":   dateFormat,
 	"tsToDate":     tsToDate,
 	"until":        until,
 	"massDeacVars": massDeactivateVals,
+	"page":         page,
 }
 
 //go:embed intake.css
@@ -109,6 +118,9 @@ var feed = load("feed.html", "item.html")
 
 type FeedData struct {
 	Items      []core.Item
+	ShowHidden int
+	Page       int
+	Count      int
 }
 
 func Feed(writer io.Writer, data FeedData) {

web/main.go

@@ -4,6 +4,7 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"strconv"
 
 	"github.com/Jaculabilis/intake/core"
 )
@@ -48,3 +49,13 @@ func RunServer(db core.DB, addr string, port string) {
 
 	log.Fatal(http.ListenAndServe(bind, nil))
 }
+
+func getQueryInt(req *http.Request, name string, def int) int {
+	s := req.URL.Query().Get(name)
+	i, err := strconv.Atoi(s)
+	if err != nil {
+		return def
+	} else {
+		return i
+	}
+}

web/source.go

@@ -14,13 +14,16 @@ func (env *Env) getSource(writer http.ResponseWriter, req *http.Request) {
 		return
 	}
 
+	page := getQueryInt(req, "page", 1)
+	count := getQueryInt(req, "count", core.DefaultFeedLimit)
+	showHidden := getQueryInt(req, "hidden", 0)
+
 	var items []core.Item
 	var err error
-	inactive := req.URL.Query().Get("inactive") == "1"
+	if showHidden != 0 {
-	if inactive {
+		items, err = core.GetAllItemsForSource(env.db, source, (page-1)*count, count)
-		items, err = core.GetAllItemsForSource(env.db, source, 0, core.DefaultFeedLimit)
 	} else {
-		items, err = core.GetActiveItemsForSource(env.db, source, 0, core.DefaultFeedLimit)
+		items, err = core.GetActiveItemsForSource(env.db, source, (page-1)*count, count)
 	}
 	if err != nil {
 		http.Error(writer, err.Error(), 500)
@@ -29,6 +32,9 @@ func (env *Env) getSource(writer http.ResponseWriter, req *http.Request) {
 
 	data := html.FeedData{
 		Items:      items,
+		ShowHidden: showHidden,
+		Page:       page,
+		Count:      count,
 	}
 	html.Feed(writer, data)
 }