From 6027f664b38af2443bd6e8928bcb678c00cbd370 Mon Sep 17 00:00:00 2001 From: Ayo Date: Sun, 26 Nov 2023 03:43:41 +0100 Subject: [PATCH 1/4] feat: preserve props type --- src/WebComponent.js | 96 ++++++++++++++++++++----------------- type-restore/Counter.mjs | 15 ++++++ type-restore/HelloWorld.mjs | 14 ++++++ type-restore/Object.mjs | 15 ++++++ type-restore/Toggle.mjs | 18 +++++++ type-restore/index.html | 31 ++++++++++++ 6 files changed, 146 insertions(+), 43 deletions(-) create mode 100644 type-restore/Counter.mjs create mode 100644 type-restore/HelloWorld.mjs create mode 100644 type-restore/Object.mjs create mode 100644 type-restore/Toggle.mjs create mode 100644 type-restore/index.html diff --git a/src/WebComponent.js b/src/WebComponent.js index 65e1fcb..7486fcc 100644 --- a/src/WebComponent.js +++ b/src/WebComponent.js @@ -87,75 +87,85 @@ export class WebComponent extends HTMLElement { this.onDestroy(); } - /** - * @param {string} property - * @param {any} previousValue - * @param {any} currentValue - */ attributeChangedCallback(property, previousValue, currentValue) { const camelCaps = this.#getCamelCaps(property); if (previousValue !== currentValue) { this[property] = currentValue === "" || currentValue; this[camelCaps] = this[property]; // remove on v2 - this.props[camelCaps] = this[property]; + + this.#handleUpdateProp(camelCaps, currentValue) this.render(); this.onChanges({ property, previousValue, currentValue }); } } - /** - * Converts a kebab-cased string into camelCaps - * @param {string} kebab string in kebab-case - * @returns {string} - */ + #handleUpdateProp(key, value) { + + const restored = this.#restoreType(value, this.#typeMap[key]) + + if (restored !== this.props[key]) + this.props[key] = value; + } + #getCamelCaps(kebab) { return kebab.replace(/-./g, (x) => x[1].toUpperCase()); } - /** - * Proxy handler for observed attribute - property counterpart - * @param {(qualifiedName: string, value: string) => void} setter - * @returns - */ - #handler = (setter) => ({ - set(obj, prop, newValue) { - const oldValue = obj[prop]; + #typeMap = {}; - obj[prop] = newValue; - - /** - * Converts camelCaps string into kebab-case - * @param {string} str - * @returns {string} - */ - const getKebab = (str) => - str.replace( - /[A-Z]+(?![a-z])|[A-Z]/g, - ($, ofs) => (ofs ? "-" : "") + $.toLowerCase() - ); - - if (oldValue != newValue) { - const kebab = getKebab(prop); - setter(kebab, newValue); + #restoreType = (value, type) => { + switch (type) { + case "string": + return value; + case "number": + case "boolean": + return JSON.parse(value); + default: + return value; } + }; - return true; - }, - }); + #handler(setter, typeMap) { + const getKebab = (str) => { + return str.replace( + /[A-Z]+(?![a-z])|[A-Z]/g, + ($, ofs) => (ofs ? "-" : "") + $.toLowerCase() + ); + }; + + + return { + set(obj, prop, value) { + const oldValue = obj[prop]; + + if (!(prop in typeMap)) { + typeMap[prop] = typeof value; + } + + if (oldValue !== value) { + obj[prop] = value; + const kebab = getKebab(prop); + setter(kebab, value); + } + + return true; + } + }; + } - /** - * Initialize the `props` proxy object - */ #initializeProps() { if (!this.#props) { this.#props = new Proxy( {}, - this.#handler((key, value) => this.setAttribute(key, value)) + this.#handler( + (key, value) => this.setAttribute(key, value), + this.#typeMap + ) ); } } } -export default WebComponent; \ No newline at end of file +export default WebComponent; diff --git a/type-restore/Counter.mjs b/type-restore/Counter.mjs new file mode 100644 index 0000000..bf17f0b --- /dev/null +++ b/type-restore/Counter.mjs @@ -0,0 +1,15 @@ +// @ts-check +import WebComponent from "../src/WebComponent.js"; + +export class Counter extends WebComponent { + static properties = ["count"]; + onInit() { + this.props.count = 0; + this.onclick = ()=> ++this.props.count + } + get template() { + return ``; + } +} + +customElements.define("my-counter", Counter); diff --git a/type-restore/HelloWorld.mjs b/type-restore/HelloWorld.mjs new file mode 100644 index 0000000..d2fe04e --- /dev/null +++ b/type-restore/HelloWorld.mjs @@ -0,0 +1,14 @@ +import WebComponent from "../src/WebComponent.js"; + +export class HelloWorld extends WebComponent { + static properties = ["name"]; + onInit() { + this.props.name = 'a'; + this.onclick = ()=> this.props.name += 'a' + } + get template() { + return ``; + } +} + +customElements.define("my-hello-world", HelloWorld); diff --git a/type-restore/Object.mjs b/type-restore/Object.mjs new file mode 100644 index 0000000..0e2800a --- /dev/null +++ b/type-restore/Object.mjs @@ -0,0 +1,15 @@ +import WebComponent from "../src/WebComponent.js"; + +export class ObjectText extends WebComponent { + static properties = ["object"]; + onInit() { + this.props.object = { + hello: 'world' + }; + } + get template() { + return ``; + } +} + +customElements.define("my-object", ObjectText); diff --git a/type-restore/Toggle.mjs b/type-restore/Toggle.mjs new file mode 100644 index 0000000..3468643 --- /dev/null +++ b/type-restore/Toggle.mjs @@ -0,0 +1,18 @@ +// @ts-check +import WebComponent from "../src/WebComponent.js"; + +export class Toggle extends WebComponent { + static properties = ["toggle"]; + onInit() { + this.props.toggle = false; + this.onclick = ()=>this.handleToggle() + } + handleToggle() { + this.props.toggle = !this.props.toggle; + } + get template() { + return ``; + } +} + +customElements.define("my-toggle", Toggle); diff --git a/type-restore/index.html b/type-restore/index.html new file mode 100644 index 0000000..599deac --- /dev/null +++ b/type-restore/index.html @@ -0,0 +1,31 @@ + + + + + + WC demo + + + + + + + +
+ Counter: +
+
+ Toggle: +
+
+ String: +
+
+ Object: +
+ + From b3189e2c6e19e327b61f6509f53c3f81fb01c66f Mon Sep 17 00:00:00 2001 From: Ayo Date: Sun, 26 Nov 2023 03:46:54 +0100 Subject: [PATCH 2/4] chore: update readme --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index 112538a..b15f967 100644 --- a/README.md +++ b/README.md @@ -135,7 +135,7 @@ this.setAttribute('my-name','hello'); Therefore, this will tell the browser that the UI needs a render if the attribute is one of the component's observed attributes we explicitly provided with `static properties = ['my-name']`; > The `props` property of `WebComponent` works like `HTMLElement.dataset`, except `dataset` is only for attributes prefixed with `data-`. A camelCase counterpart using `props` will give read/write access to any attribute, with or without the `data-` prefix. -> However, note that like `HTMLElement.dataset`, values assigned to properties using `WebComponent.props` is always converted into string. This will be improved in later versions. +> Another advantage over `HTMLElement.dataset` is that `WebComponent.props` can hold primitive types `number`, `boolean`, and `string`. ### Alternatives From da85a71aece95d37769dc29caa3728ae4d0cc21b Mon Sep 17 00:00:00 2001 From: Ayo Date: Sun, 26 Nov 2023 03:47:07 +0100 Subject: [PATCH 3/4] 1.13.3 --- package-lock.json | 4 ++-- package.json | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/package-lock.json b/package-lock.json index a2b0684..8745d87 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,12 +1,12 @@ { "name": "web-component-base", - "version": "1.13.2", + "version": "1.13.3", "lockfileVersion": 3, "requires": true, "packages": { "": { "name": "web-component-base", - "version": "1.13.2", + "version": "1.13.3", "license": "MIT", "workspaces": [ "site" diff --git a/package.json b/package.json index 083ec99..ccb6a9b 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "web-component-base", - "version": "1.13.2", + "version": "1.13.3", "description": "A zero-dependency, ~600 Bytes (minified & gzipped), JS base class for creating reactive custom elements easily", "main": "WebComponent.js", "type": "module", From 9480f378442ee6b2dbc6942bdfb6d59755a1deaf Mon Sep 17 00:00:00 2001 From: Ayo Date: Sun, 26 Nov 2023 04:19:19 +0100 Subject: [PATCH 4/4] chore: format --- src/WebComponent.js | 33 +++++++++++++++------------------ 1 file changed, 15 insertions(+), 18 deletions(-) diff --git a/src/WebComponent.js b/src/WebComponent.js index 7486fcc..32dd0ef 100644 --- a/src/WebComponent.js +++ b/src/WebComponent.js @@ -94,7 +94,7 @@ export class WebComponent extends HTMLElement { this[property] = currentValue === "" || currentValue; this[camelCaps] = this[property]; // remove on v2 - this.#handleUpdateProp(camelCaps, currentValue) + this.#handleUpdateProp(camelCaps, currentValue); this.render(); this.onChanges({ property, previousValue, currentValue }); @@ -102,11 +102,9 @@ export class WebComponent extends HTMLElement { } #handleUpdateProp(key, value) { + const restored = this.#restoreType(value, this.#typeMap[key]); - const restored = this.#restoreType(value, this.#typeMap[key]) - - if (restored !== this.props[key]) - this.props[key] = value; + if (restored !== this.props[key]) this.props[key] = value; } #getCamelCaps(kebab) { @@ -115,17 +113,17 @@ export class WebComponent extends HTMLElement { #typeMap = {}; - #restoreType = (value, type) => { - switch (type) { - case "string": - return value; - case "number": - case "boolean": - return JSON.parse(value); - default: - return value; - } - }; + #restoreType = (value, type) => { + switch (type) { + case "string": + return value; + case "number": + case "boolean": + return JSON.parse(value); + default: + return value; + } + }; #handler(setter, typeMap) { const getKebab = (str) => { @@ -135,7 +133,6 @@ export class WebComponent extends HTMLElement { ); }; - return { set(obj, prop, value) { const oldValue = obj[prop]; @@ -151,7 +148,7 @@ export class WebComponent extends HTMLElement { } return true; - } + }, }; }