// Render renders the giving set of resources into the provided body and header
// of the DOM.
func (dm *DOMRenderer) Render(rs ...*design.ResourceDefinition) {
head := dm.Document.QuerySelector("head")
body := dm.Document.QuerySelector("body")
// clear all children of head and body if the belong to us.
for _, item := range head.QuerySelectorAll("[data-gen*='gu']") {
if !item.HasAttribute("gu-script-root") {
item.ParentNode().RemoveChild(item)
}
}
for _, item := range body.QuerySelectorAll("[data-gen*='gu']") {
if !item.HasAttribute("gu-script-root") {
item.ParentNode().RemoveChild(item)
}
}
// Render the normal links first.
for _, res := range rs {
for _, item := range res.Links {
markup := item.Render()
markup.EachEvent(func(ev *trees.Event, root *trees.Markup) {
dm.BindEvent(ev, head.Underlying())
})
js.Patch(js.CreateFragment(markup.HTML()), head.Underlying(), false)
}
}
// Render all basic views which are not to be deffered.
for _, res := range rs {
for _, render := range res.Renderables {
dm.RenderUpdate(render.View, render.Targets, false)
}
}
// Render all defered views.
for _, res := range rs {
for _, render := range res.DRenderables {
dm.RenderUpdate(render.View, render.Targets, false)
}
}
// Render the defered links.
for _, res := range rs {
for _, item := range res.DeferLinks {
markup := item.Render()
markup.EachEvent(func(ev *trees.Event, root *trees.Markup) {
dm.BindEvent(ev, body.Underlying())
})
js.Patch(js.CreateFragment(markup.HTML()), body.Underlying(), false)
}
}
}
// RenderUpdate handles rendering calls for individual renderers which may have
// determined targets within the body.
func (dm *DOMRenderer) RenderUpdate(rv gu.Renderable, targets string, update bool) {
body := dm.Document.QuerySelector("body")
if targets == "" {
markup := rv.Render()
if !update {
markup.EachEvent(func(ev *trees.Event, root *trees.Markup) {
dm.BindEvent(ev, body.Underlying())
})
}
if kvr, ok := rv.(gu.RenderView); ok {
js.Patch(js.CreateFragment(markup.HTML()), body.Underlying(), !kvr.RenderedBefore())
if cvs, ok := rv.(gu.ViewHooks); ok {
mounted, _, _ := cvs.Hooks()
if !mounted.Used() {
mounted.Publish()
}
}
return
}
js.Patch(js.CreateFragment(markup.HTML()), body.Underlying(), false)
if cvs, ok := rv.(gu.ViewHooks); ok {
mounted, _, _ := cvs.Hooks()
if !mounted.Used() {
mounted.Publish()
}
}
return
}
kernels := body.QuerySelectorAll(targets)
for _, targetDOM := range kernels {
markup := rv.Render()
if !update {
markup.EachEvent(func(ev *trees.Event, root *trees.Markup) {
dm.BindEvent(ev, targetDOM.Underlying())
})
}
if kvr, ok := rv.(gu.RenderView); ok {
js.Patch(js.CreateFragment(markup.HTML()), body.Underlying(), !kvr.RenderedBefore())
continue
}
js.Patch(js.CreateFragment(markup.HTML()), targetDOM.Underlying(), false)
}
if cvs, ok := rv.(gu.ViewHooks); ok {
mounted, _, _ := cvs.Hooks()
if !mounted.Used() {
mounted.Publish()
}
}
}