shrink_main should work again.

common/template_init.go

@@ -748,6 +748,10 @@ func initDefaultTmplFuncMap() {
 		return template.HTML(BuildWidget(dock.(string), headerInt.(*Header)))
 	}
 
+	fmap["hasWidgets"] = func(dock interface{}, headerInt interface{}) interface{} {
+		return HasWidgets(dock.(string), headerInt.(*Header))
+	}
+
 	fmap["elapsed"] = func(startedAtInt interface{}) interface{} {
 		return time.Since(startedAtInt.(time.Time)).String()
 	}

common/templates/templates.go

@@ -85,22 +85,23 @@ func NewCTemplateSet(in string) *CTemplateSet {
 		baseImportMap:  map[string]string{},
 		overridenRoots: map[string]map[string]bool{},
 		funcMap: map[string]interface{}{
-			"and":      "&&",
-			"not":      "!",
-			"or":       "||",
-			"eq":       "==",
-			"ge":       ">=",
-			"gt":       ">",
-			"le":       "<=",
-			"lt":       "<",
-			"ne":       "!=",
-			"add":      "+",
-			"subtract": "-",
-			"multiply": "*",
-			"divide":   "/",
-			"dock":     true,
-			"elapsed":  true,
-			"lang":     true,
+			"and":        "&&",
+			"not":        "!",
+			"or":         "||",
+			"eq":         "==",
+			"ge":         ">=",
+			"gt":         ">",
+			"le":         "<=",
+			"lt":         "<",
+			"ne":         "!=",
+			"add":        "+",
+			"subtract":   "-",
+			"multiply":   "*",
+			"divide":     "/",
+			"dock":       true,
+			"hasWidgets": true,
+			"elapsed":    true,
+			"lang":       true,
 			//"langf":true,
 			"level":   true,
 			"abstime": true,
@@ -1040,6 +1041,30 @@ ArgLoop:
 			// TODO: Refactor this
 			litString("common.BuildWidget("+leftParam+","+rightParam+")", false)
 			break ArgLoop
+		case "hasWidgets":
+			// TODO: Implement string literals properly
+			leftOperand := node.Args[pos+1].String()
+			rightOperand := node.Args[pos+2].String()
+			if len(leftOperand) == 0 || len(rightOperand) == 0 {
+				panic("The left or right operand for function dock cannot be left blank")
+			}
+			leftParam := leftOperand
+			if leftOperand[0] != '"' {
+				leftParam, _ = c.compileIfVarSub(con, leftParam)
+			}
+			if rightOperand[0] == '"' {
+				panic("The right operand for function dock cannot be a string")
+			}
+			rightParam, val3 := c.compileIfVarSub(con, rightOperand)
+			if !val3.IsValid() {
+				panic("val3 is invalid")
+			}
+			val = val3
+
+			// TODO: Refactor this
+			out = "common.HasWidgets(" + leftParam + "," + rightParam + ")"
+			literal = true
+			break ArgLoop
 		case "lang":
 			// TODO: Implement string literals properly
 			leftOperand := node.Args[pos+1].String()

common/widgets.go

@@ -137,6 +137,42 @@ func HasDock(dock string) bool {
 	return false
 }
 
+// TODO: Find a more optimimal way of doing this...
+func HasWidgets(dock string, header *Header) bool {
+	if !header.Theme.HasDock(dock) {
+		return false
+	}
+
+	// Let themes forcibly override this slot
+	sbody := header.Theme.BuildDock(dock)
+	if sbody != "" {
+		return true
+	}
+
+	var widgets []*Widget
+	switch dock {
+	case "leftOfNav":
+		widgets = Docks.LeftOfNav
+	case "rightOfNav":
+		widgets = Docks.RightOfNav
+	case "rightSidebar":
+		widgets = Docks.RightSidebar.Items
+	case "footer":
+		widgets = Docks.Footer.Items
+	}
+
+	wcount := 0
+	for _, widget := range widgets {
+		if !widget.Enabled {
+			continue
+		}
+		if widget.Allowed(header.Zone) {
+			wcount++
+		}
+	}
+	return wcount > 0
+}
+
 func BuildWidget(dock string, header *Header) (sbody string) {
 	var widgets []*Widget
 	if !header.Theme.HasDock(dock) {

templates/header.html

@@ -56,7 +56,7 @@
 		{{/**<!--</div>-->**/}}
 			<div class="midRow">
 				<div class="midLeft"></div>
-				<div id="back" class="zone_{{.Header.Zone}}{{if .Header.Widgets.RightSidebar}} shrink_main{{end}}">
+				<div id="back" class="zone_{{.Header.Zone}}{{if hasWidgets "rightSidebar" .Header }} shrink_main{{end}}">
 					<div id="main" >
 						<div class="alertbox initial_alertbox">{{range .Header.NoticeList}}
 				{{template "notice.html" . }}{{end}}