bulpherjs/elements/nav.go

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2020-03-23 11:15:33 +05:00
// BulpherJS - bulma for GopherJS.
// Copyright (c) 2020 by Stanislav Nikitin <pztrn@pztrn.name>
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
package elements
import (
"strings"
"github.com/gopherjs/gopherjs/js"
"go.dev.pztrn.name/bulpherjs/common"
"go.dev.pztrn.name/bulpherjs/metas"
)
const (
navDefaultClass = "navbar"
)
// NavOptions is a "nav" HTML element configuration structure.
type NavOptions struct {
Class string
Data map[string]string
Role string
}
// Nav is a controlling structure for "nav" HTML element.
type Nav struct {
metas.Generic
options *NavOptions
}
// NewNav creates new "nav" HTML element controlling structure.
func NewNav(navOptions *NavOptions) *Nav {
n := &Nav{}
n.initialize(navOptions)
return n
}
// Build builds element and calls Build() for all child elements.
func (n *Nav) Build() *js.Object {
if n.options == nil {
n.AddClassesFromString(navDefaultClass)
n.BuildChilds(n.Object)
return n.Object
}
if !strings.Contains(n.options.Class, "navbar") {
n.options.Class += " navbar"
}
if n.options.Class != "" {
n.AddClassesFromString(n.options.Class)
}
if n.options.Role != "" {
n.Object.Set(common.HTMLElementParameterRole, n.options.Role)
}
if n.options.Data != nil {
for k, v := range n.options.Data {
n.Object.Set(k, v)
}
}
n.BuildChilds(n.Object)
return n.Object
}
// Initializes controlling structure with necessary parameters.
func (n *Nav) initialize(navOptions *NavOptions) {
n.options = navOptions
n.InitializeGeneric()
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n.Object = js.Global.Get(common.HTMLElementDocument).Call(common.JSCallCreateElement, common.HTMLElementNav)
}