forked from ungerik/go-start
/
list.go
106 lines (83 loc) · 2.5 KB
/
list.go
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package view
///////////////////////////////////////////////////////////////////////////////
// List
// TODO definition list
type List struct {
ViewBaseWithId
Model ListModel
Ordered bool
OrderOffset uint
Class string
}
func (self *List) Render(ctx *Context) (err error) {
if self.Ordered {
ctx.Response.XML.OpenTag("ol")
ctx.Response.XML.Attrib("start", self.OrderOffset+1)
} else {
ctx.Response.XML.OpenTag("ul")
}
ctx.Response.XML.AttribIfNotDefault("id", self.id)
ctx.Response.XML.AttribIfNotDefault("class", self.Class)
if self.Model != nil {
numItems := self.Model.NumItems()
for i := 0; i < numItems; i++ {
ctx.Response.XML.OpenTag("li")
if self.id != "" {
ctx.Response.XML.Attrib("id", self.id, "_", i)
}
view, err := self.Model.ItemView(i, ctx)
if view != nil && err == nil {
view.Init(view)
err = view.Render(ctx)
}
if err != nil {
return err
}
ctx.Response.XML.ForceCloseTag() // li
}
}
ctx.Response.XML.ForceCloseTag() // ol/ul
return nil
}
///////////////////////////////////////////////////////////////////////////////
// ListModel
type ListModel interface {
NumItems() int
ItemView(index int, ctx *Context) (view View, err error)
}
///////////////////////////////////////////////////////////////////////////////
// ViewsListModel
type ViewsListModel []View
func (self ViewsListModel) NumItems() int {
return len(self)
}
func (self ViewsListModel) ItemView(index int, ctx *Context) (view View, err error) {
return self[index], nil
}
///////////////////////////////////////////////////////////////////////////////
// MultiViewsListModel
type MultiViewsListModel []Views
func (self MultiViewsListModel) NumItems() int {
return len(self)
}
func (self MultiViewsListModel) ItemView(index int, ctx *Context) (view View, err error) {
return self[index], nil
}
///////////////////////////////////////////////////////////////////////////////
// HTMLStringsListModel
type HTMLStringsListModel []string
func (self HTMLStringsListModel) NumItems() int {
return len(self)
}
func (self HTMLStringsListModel) ItemView(index int, ctx *Context) (view View, err error) {
return HTML(self[index]), nil
}
///////////////////////////////////////////////////////////////////////////////
// EscapeStringsListModel
type EscapeStringsListModel []string
func (self EscapeStringsListModel) NumItems() int {
return len(self)
}
func (self EscapeStringsListModel) ItemView(index int, ctx *Context) (view View, err error) {
return Escape(self[index]), nil
}