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Pre dev-memo (#17)

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* 🎉

* ➖ no good direction

how to clean up not used in text re-rendering ⇒ needs to be more inside of `O.el`

* 🐛 🔨 `O.el`

* 🚀 implementing #16

* 💥 `on.(dis)connected` only once
This commit is contained in:
Jan Andrle
2024-01-31 14:37:19 +01:00
committed by GitHub
parent 13c75fede1
commit c1a38e566c
15 changed files with 152 additions and 99 deletions
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29
src/events.js
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@ -1,5 +1,5 @@
export { registerReactivity } from './observables-common.js';
import { enviroment as env } from './dom-common.js';
import { enviroment as env, keyLTE } from './dom-common.js';
export function dispatchEvent(name, options, host){
if(!options) options= {};
@ -26,6 +26,7 @@ const els_attribute_store= new WeakSet();
import { scope } from "./dom.js";
import { onAbort } from './helpers.js';
//TODO: cleanUp when event before abort?
//TODO: docs (e.g.) https://nolanlawson.com/2024/01/13/web-component-gotcha-constructor-vs-connectedcallback/
on.connected= function(listener, options){
const { custom_element }= scope.current;
const name= "connected";
@ -36,7 +37,7 @@ on.connected= function(listener, options){
if(custom_element) element= custom_element;
const event= "dde:"+name;
element.addEventListener(event, listener, options);
if(element.__dde_lifecycleToEvents) return element;
if(element[keyLTE]) return element;
if(element.isConnected) return ( element.dispatchEvent(new Event(event)), element );
const c= onAbort(options.signal, ()=> c_ch_o.offConnected(element, listener));
@ -54,7 +55,7 @@ on.disconnected= function(listener, options){
if(custom_element) element= custom_element;
const event= "dde:"+name;
element.addEventListener(event, listener, options);
if(element.__dde_lifecycleToEvents) return element;
if(element[keyLTE]) return element;
const c= onAbort(options.signal, ()=> c_ch_o.offDisconnected(element, listener));
if(c) c_ch_o.onDisconnected(element, listener);
@ -77,7 +78,7 @@ on.attributeChanged= function(listener, options){
return function registerElement(element){
const event= "dde:"+name;
element.addEventListener(event, listener, options);
if(element.__dde_lifecycleToEvents || els_attribute_store.has(element))
if(element[keyLTE] || els_attribute_store.has(element))
return element;
if(!env.M) return element;
@ -171,13 +172,13 @@ function connectionsChangesObserverConstructor(){
function requestIdle(){ return new Promise(function(resolve){
(requestIdleCallback || requestAnimationFrame)(resolve);
}); }
async function collectChildren(element, filter){
async function collectChildren(element){
if(store.size > 30)//TODO limit?
await requestIdle();
const out= [];
if(!(element instanceof Node)) return out;
for(const el of store.keys()){
if(el===element || !(el instanceof Node) || filter(el)) continue;
if(el===element || !(el instanceof Node)) continue;
if(element.contains(el))
out.push(el);
}
@ -186,7 +187,7 @@ function connectionsChangesObserverConstructor(){
function observerAdded(addedNodes, is_root){
let out= false;
for(const element of addedNodes){
if(is_root) collectChildren(element, el=> !el.isConnectedd).then(observerAdded);
if(is_root) collectChildren(element).then(observerAdded);
if(!store.has(element)) continue;
const ls= store.get(element);
@ -203,17 +204,21 @@ function connectionsChangesObserverConstructor(){
function observerRemoved(removedNodes, is_root){
let out= false;
for(const element of removedNodes){
if(is_root) collectChildren(element, el=> el.isConnectedd).then(observerRemoved);
if(is_root) collectChildren(element).then(observerRemoved);
if(!store.has(element)) continue;
const ls= store.get(element);
if(!ls.length_d) continue;
element.dispatchEvent(new Event("dde:disconnected"));
store.delete(element);
(queueMicrotask || setTimeout)(dispatchRemove(element));
out= true;
}
return out;
}
function dispatchRemove(element){
return ()=> {
if(element.isConnected) return;
element.dispatchEvent(new Event("dde:disconnected"));
store.delete(element);
};
}
}