pub fn patch(
		&mut self,
		el: &mut util::LazyElement,
		new: Attrs,
	) -> Result<(), JsValue> {
		// Attributes removed
		let mut to_remove = Vec::<u16>::new();
		for k in self.0.keys() {
			if new.0.contains_key(k) {
				continue;
			}

			to_remove.push(*k);
			match el.get() {
				Ok(el) => {
					tokenizer::get_value(*k, |key| el.remove_attribute(key))
				}
				Err(e) => Err(e),
			}?;
		}
		for k in to_remove {
			self.0.remove(&k);
		}

		// Attributes added or changed
		for (k, v) in new.0.into_iter() {
			let mut set = |k: u16, v: &Value| -> Result<(), JsValue> {
				match el.get() {
					Ok(el) => tokenizer::get_value(k, |key| match v {
						Value::StringToken(v) => {
							tokenizer::get_value(*v, |value| {
								el.set_attribute(key, value)
							})
						}
						Value::Untokenized(value) => {
							el.set_attribute(key, value)
						}
					}),
					Err(e) => Err(e),
				}
			};
			match self.0.get_mut(&k) {
				Some(old_v) => {
					if v != *old_v {
						set(k, &v)?;
						*old_v = v;
					}
				}
				None => {
					set(k, &v)?;
					self.0.insert(k, v);
				}
			}
		}

		Ok(())
	}
// Diff and patch attributes against new set and write changes to the DOM
Diff and patch attributes against new set and write changes to the DOM
Diff and patch attributes against new set and write changes to the DOM
pub fn patch(
		&mut self,
		el: &mut util::LazyElement,
		new: Attrs,
	) -> Result<(), JsValue> {
		// Attributes removed
		let mut to_remove = Vec::<u16>::new();
		for k in self.0.keys() {
			if new.0.contains_key(k) {
				continue;
			}
			to_remove.push(*k);
			match el.get() {
				Ok(el) => {
					tokenizer::get_value(*k, |key| el.remove_attribute(key))
				}
				Err(e) => Err(e),
			}?;
		}
		for k in to_remove {
			self.0.remove(&k);
		}
		// Attributes added or changed
		for (k, v) in new.0.into_iter() {
			let mut set = |k: u16, v: &Value| -> Result<(), JsValue> {
				match el.get() {
					Ok(el) => tokenizer::get_value(k, |key| match v {
						Value::StringToken(v) => {
							tokenizer::get_value(*v, |value| {
								el.set_attribute(key, value)
							})
						}
						Value::Untokenized(value) => {
							el.set_attribute(key, value)
						}
					}),
					Err(e) => Err(e),
				}
			};
			match self.0.get_mut(&k) {
				Some(old_v) => {
					if v != *old_v {
						set(k, &v)?;
						*old_v = v;
					}
				}
				None => {
					set(k, &v)?;
					self.0.insert(k, v);
				}
			}
		}
		Ok(())
	}
pub fn patch ( & mut self , el : & mut util :: LazyElement , new : Attrs , ) -> Result < ( ) , JsValue > { // Attributes removed let mut to_remove = Vec :: < u16 > :: new ( ) ; for k in self . 0 . keys ( ) { if new . 0 . contains_key ( k ) { continue ; } to_remove . push ( * k ) ; match el . get ( ) { Ok ( el ) => { tokenizer :: get_value ( * k , | key | el . remove_attribute ( key ) ) } Err ( e ) => Err ( e ) , } ? ; } for k in to_remove { self . 0 . remove ( & k ) ; } // Attributes added or changed for ( k , v ) in new . 0 . into_iter ( ) { let mut set = | k : u16 , v : & Value | -> Result < ( ) , JsValue > { match el . get ( ) { Ok ( el ) => tokenizer :: get_value ( k , | key | match v { Value :: StringToken ( v ) => { tokenizer :: get_value ( * v , | value | { el . set_attribute ( key , value ) } ) } Value :: Untokenized ( value ) => { el . set_attribute ( key , value ) } } ) , Err ( e ) => Err ( e ) , } } ; match self . 0 . get_mut ( & k ) { Some ( old_v ) => { if v != * old_v { set ( k , & v ) ? ; * old_v = v ; } } None => { set ( k , & v ) ? ; self . 0 . insert ( k , v ) ; } } } Ok ( ( ) ) }
Diff and patch attributes against new set and write changes to the DOM
Diff and patch attributes against new set and write changes to the DOM
&mut self
el
&mut util::LazyElement
new
Attrs