/
element_metadata.go
52 lines (45 loc) · 1.05 KB
/
element_metadata.go
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package core
import (
"github.com/goui2/ui/base"
)
type ElementMetaData interface {
base.ManagedObjectMetaData
GetElementName() string
Renderer() Renderer
}
type elementMetaData struct {
base.ManagedObjectMetaData
renderer Renderer
}
func (e elementMetaData) GetElementName() string {
return e.GetName()
}
func (e elementMetaData) Renderer() Renderer {
return e.renderer
}
func elementMetaDataBuilder(s string, ms ...base.MetaDataSetting) []base.MetaDataSetting {
epm := &elementMetaData{}
parentSettings := base.SelectMetadataSettings(ms, func(i base.MetaDataSetting) bool {
switch x := i.(type) {
case ISRenderer:
epm.renderer = x.Renderer
return false
}
return true
})
parentSettings = append(ms,
base.MDSettingCallback{
4,
func(m base.MetaData, prev base.MetaData) base.MetaData {
epm.ManagedObjectMetaData = m.(base.ManagedObjectMetaData)
if prevMD, ok := prev.(*elementMetaData); ok {
if epm.renderer == nil {
epm.renderer = prevMD.renderer
}
}
return epm
},
},
)
return parentSettings
}