Render all months in sidebar

diary.go

@@ -343,8 +343,8 @@ type calYear struct {
 }
 
 // calMonthGrid carries everything the template needs to render one month's
-// grid plus the dropdown / heading entry that targets it. The calendar
-// widget ships all 12 in the initial HTML; JS swaps which one is visible.
+// grid plus the caption that links to it. The calendar widget renders all 12
+// stacked vertically; JS centers the current month in the rail on load.
 type calMonthGrid struct {
 	Num       int
 	Name      string
@@ -353,13 +353,11 @@ type calMonthGrid struct {
 }
 
 type calendarData struct {
-	DisplayYear      int
-	DisplayMonth     int
-	DisplayMonthName string // pre-resolved so the template doesn't need arithmetic
-	DiaryURL         string
-	YearURL          string
-	Months           []calMonthGrid
-	Years            []calYear
+	DisplayYear  int
+	DisplayMonth int
+	DiaryURL     string
+	Months       []calMonthGrid
+	Years        []calYear
 }
 
 var diaryCalTmpl = template.Must(template.ParseFS(assets, "assets/diary/calendar.html"))
@@ -489,13 +487,11 @@ func computeCalendarWidget(diaryRootFS, diaryRootURL, fsPath string, depth int)
 	sort.Slice(years, func(i, j int) bool { return years[i].Num > years[j].Num })
 
 	data := calendarData{
-		DisplayYear:      displayYear,
-		DisplayMonth:     displayMonth,
-		DisplayMonthName: months[displayMonth-1].Name,
-		DiaryURL:         diaryRootURL,
-		YearURL:          yearURL,
-		Months:           months,
-		Years:            years,
+		DisplayYear:  displayYear,
+		DisplayMonth: displayMonth,
+		DiaryURL:     diaryRootURL,
+		Months:       months,
+		Years:        years,
 	}
 
 	var buf bytes.Buffer