bulpherjs/elements/head.go

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2022-01-07 10:53:39 +05:00
package elements
import (
"github.com/gopherjs/gopherjs/js"
"go.dev.pztrn.name/bulpherjs/common"
"go.dev.pztrn.name/bulpherjs/metas"
)
const (
bulmaVersion = "0.9.3"
)
// HeadOptions is a "head" HTML head element configuration structure.
type HeadOptions struct{}
// Head is a controlling structure for "head" HTML head element.
type Head struct {
metas.Generic
options *HeadOptions
}
// NewHeader creates new "head" HTML element controlling structure.
func NewHead(opts *HeadOptions) *Head {
hw := &Head{}
hw.initialize(opts)
return hw
}
// Build builds header.
func (hw *Head) Build() *js.Object {
hw.BuildChilds(hw.Object)
return hw.Object
}
// Initializes controlling structure.
func (hw *Head) initialize(opts *HeadOptions) {
hw.options = opts
hw.InitializeGeneric()
hw.Object = js.Global.Get(common.HTMLElementDocument).Call(common.JSCallGetElementsByTagName, common.HTMLElementHead).Index(0)
// Add default header elements.
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hw.AddChild(NewLink(&LinkOptions{
Href: "//cdn.jsdelivr.net/npm/bulma@" + bulmaVersion + "/css/bulma.min.css",
ID: "",
Rel: "stylesheet",
}))
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hw.AddChild(NewMeta(&MetaOptions{
Content: "width=device-width, initial-scale=1",
Name: "viewport",
}))
}
// SetTitle sets title for whole page.
func (h *Head) SetTitle(title string) {
js.Global.Get(common.HTMLElementDocument).Set(common.HTMLHeadElementTitle, title)
}