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use super::TagHandler;
use super::StructuredPrinter;
use html5ever::serialize;
use html5ever::serialize::{SerializeOpts, TraversalScope};
use markup5ever_rcdom::{Handle, NodeData, SerializableHandle};
#[derive(Default)]
pub struct DummyHandler;
impl TagHandler for DummyHandler {
fn handle(&mut self, _tag: &Handle, _printer: &mut StructuredPrinter) {
}
fn after_handle(&mut self, _printer: &mut StructuredPrinter) {
}
}
#[derive(Default)]
pub(super) struct IdentityHandler;
impl TagHandler for IdentityHandler {
fn handle(&mut self, tag: &Handle, printer: &mut StructuredPrinter) {
let mut buffer = vec![];
let options = SerializeOpts { traversal_scope: TraversalScope::IncludeNode, .. Default::default() };
let to_be_serialized = SerializableHandle::from(tag.clone());
let result = serialize(&mut buffer, &to_be_serialized, options);
if result.is_err() {
return;
}
let conv = String::from_utf8(buffer);
if conv.is_err() {
return;
}
printer.append_str(&conv.unwrap());
}
fn skip_descendants(&self) -> bool {
return true;
}
fn after_handle(&mut self, _printer: &mut StructuredPrinter) {
}
}
#[derive(Default)]
pub struct HtmlCherryPickHandler {
tag_name: String
}
impl TagHandler for HtmlCherryPickHandler {
fn handle(&mut self, tag: &Handle, printer: &mut StructuredPrinter) {
match tag.data {
NodeData::Element { ref name, ref attrs, .. } => {
let attrs = attrs.borrow();
self.tag_name = name.local.to_string();
printer.append_str(&format!("<{}", self.tag_name));
for attr in attrs.iter() {
printer.append_str(&format!(" {}=\"{}\"", attr.name.local, attr.value));
}
printer.append_str(">");
}
_ => return
}
}
fn skip_descendants(&self) -> bool {
return false;
}
fn after_handle(&mut self, printer: &mut StructuredPrinter) {
printer.append_str(&format!("</{}>", self.tag_name));
}
}