From 91f8c96eac333a3e5381aa2539025ccbbdfdb4a0 Mon Sep 17 00:00:00 2001 From: Jan Andrle Date: Mon, 8 Jan 2024 22:23:06 +0100 Subject: [PATCH] :hammer: `O.observedAttributes`, observables --- dist/dde-with-observables.js | 28 +++++++++--------- dist/dde.js | 2 +- dist/esm-with-observables.js | 8 +++--- dist/esm.js | 2 +- examples/components/todosComponent.js | 4 +-- src/dom.js | 2 +- src/observables-lib.js | 41 +++++++++++++-------------- 7 files changed, 43 insertions(+), 44 deletions(-) diff --git a/dist/dde-with-observables.js b/dist/dde-with-observables.js index ab373da..2c52026 100644 --- a/dist/dde-with-observables.js +++ b/dist/dde-with-observables.js @@ -1,31 +1,31 @@ //deka-dom-el library is available via global namespace `dde` (()=> { -var O={isObservable(t){return!1},processReactiveAttribute(t,e,n,r){return n}};function F(t,e=!0){return e?Object.assign(O,t):(Object.setPrototypeOf(t,O),t)}function S(t){return O.isPrototypeOf(t)&&t!==O?t:O}function _(t){return typeof 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i)f&&l(p,O=>O.isConnectedd).then(h),!(!t.has(p)||!t.get(p).length_d)&&(p.dispatchEvent(new Event("dde:disconnected")),t.delete(p),u=!0);return u}}export{A as assign,j as assignAttribute,B as chainableAppend,Z as classListDeclarative,N as createElement,it as createElementNS,pt as customElementRender,lt as customElementWithDDE,vt as dispatchEvent,N as el,it as elNS,G as elementAttribute,ft as empty,lt as lifecycleToEvents,Q as observedAttributes,y as on,q as registerReactivity,v as scope,st as simulateSlots}; diff --git a/examples/components/todosComponent.js b/examples/components/todosComponent.js index 230461f..333b138 100644 --- a/examples/components/todosComponent.js +++ b/examples/components/todosComponent.js @@ -37,7 +37,7 @@ export function todosComponent({ todos= [ "Task A" ] }= {}){ .map((textContent, value)=> el(todoComponent, { textContent, value, className }, onremove)) )); - const ul_todos_v2= (ts)=> el("ul").append( + const ul_todos_v2= ts=> el("ul").append( ...ts.map((textContent, value)=> el(todoComponent, { textContent, value, className }, onremove)) ); @@ -48,7 +48,7 @@ export function todosComponent({ todos= [ "Task A" ] }= {}){ el("h3", "List of todos:"), O.el(todosO, ts=> !ts.length ? el("p", "No todos yet") - : ( (ul_todos_version-1) ? ul_todos_v1 : ul_todos_v2(ts) ) + : ( !(ul_todos_version-1) ? ul_todos_v1 : ul_todos_v2(ts) ) ), el("p", "Click to the text to edit it.") ), diff --git a/src/dom.js b/src/dom.js index 163695d..a65354b 100644 --- a/src/dom.js +++ b/src/dom.js @@ -114,7 +114,7 @@ createElement.mark= function(attrs, is_open= false){ attrs= Object.entries(attrs).map(([ n, v ])=> n+`="${v}"`).join(" "); const end= is_open ? "" : "/"; const out= env.D.createComment(``); - if(!is_open) out.end= env.D.createComment(""); + if(is_open) out.end= env.D.createComment(""); return out; }; export { createElement as el }; diff --git a/src/observables-lib.js b/src/observables-lib.js index c2fbb2c..21538f9 100644 --- a/src/observables-lib.js +++ b/src/observables-lib.js @@ -90,7 +90,7 @@ import { enviroment as env } from "./dom-common.js"; import { el } from "./dom.js"; import { scope } from "./dom.js"; observable.el= function(o, map){ - const mark_start= el.mark({ type: "reactive" }, false); + const mark_start= el.mark({ type: "reactive" }, true); const mark_end= mark_start.end; const out= env.D.createDocumentFragment(); out.append(mark_start, mark_end); @@ -115,35 +115,34 @@ observable.el= function(o, map){ }; import { on } from "./events.js"; import { observedAttributes } from "./helpers.js"; -function observedAttribute(instance, name){ - const out= (...args)=> !args.length - ? instance.getAttribute(name) - : instance.setAttribute(name, ...args); - out.attribute= name; - return out; +const observedAttributeActions= { + _set(value){ this.value= value; }, +}; +function observedAttribute(store){ + return function(instance, name){ + const varO= (...args)=> !args.length + ? instance.getAttribute(name) + : instance.setAttribute(name, ...args); + const out= toObservable(varO, varO(), observedAttributeActions); + store[name]= out; + return out; + }; } const key_attributes= "__dde_attributes"; observable.observedAttributes= function(element){ - const attrs= observedAttributes(element, observedAttribute); const store= element[key_attributes]= {}; - const actions= { - _set(value){ this.value= value; }, - }; - Object.keys(attrs).forEach(name=> { - const attr= attrs[name]= toObservable(attrs[name], attrs[name](), actions); - store[attr.attribute]= attr; - }); + const attrs= observedAttributes(element, observedAttribute(store)); on.attributeChanged(function attributeChangeToObservable({ detail }){ /*! This maps attributes to observables (`O.observedAttributes`). * Investigate `__dde_attributes` key of the element.*/ const [ name, value ]= detail; - const curr= element[key_attributes][name]; + const curr= this[key_attributes][name]; if(curr) return observable.action(curr, "_set", value); })(element); on.disconnected(function(){ /*! This removes all observables mapped to attributes (`O.observedAttributes`). * Investigate `__dde_attributes` key of the element.*/ - observable.clear(...Object.values(element[key_attributes])); + observable.clear(...Object.values(this[key_attributes])); })(element); return attrs; }; @@ -179,10 +178,10 @@ function removeObservablesFromElements(o, listener, ...notes){ } function create(is_readonly, value, actions){ - const o= is_readonly - ? ()=> read(o) - : (...value)=> value.length ? write(o, ...value) : read(o); - return toObservable(o, value, actions); + const varO= is_readonly + ? ()=> read(varO) + : (...value)=> value.length ? write(varO, ...value) : read(varO); + return toObservable(varO, value, actions); } const protoSigal= Object.assign(Object.create(null), { stopPropagation(){