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Author SHA1 Message Date
Jan Andrle
10021cb8be
✨ ✏️ update elemnts and add events page 2023-11-17 16:15:26 +01:00
Jan Andrle
40780bd61f
✨ Add on.disconnectedAsAbort(), pushRoot() to scope (and 🐛 pop) 2023-11-17 14:48:11 +01:00
19 changed files with 174 additions and 66 deletions
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dist/dde-with-signals.js vendored
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@ -139,6 +139,8 @@ export const scope: {
state: Scope[], state: Scope[],
/** Adds new child scope. All attributes are inherited by default. */ /** Adds new child scope. All attributes are inherited by default. */
push(scope: Partial<Scope>): ReturnType<Array<Scope>["push"]>, push(scope: Partial<Scope>): ReturnType<Array<Scope>["push"]>,
/** Adds root scope as a child of the current scope. */
pushRoot(): ReturnType<Array<Scope>["push"]>,
/** Removes last/current child scope. */ /** Removes last/current child scope. */
pop(): ReturnType<Array<Scope>["pop"]>, pop(): ReturnType<Array<Scope>["pop"]>,
}; };

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@ -139,6 +139,8 @@ export const scope: {
state: Scope[], state: Scope[],
/** Adds new child scope. All attributes are inherited by default. */ /** Adds new child scope. All attributes are inherited by default. */
push(scope: Partial<Scope>): ReturnType<Array<Scope>["push"]>, push(scope: Partial<Scope>): ReturnType<Array<Scope>["push"]>,
/** Adds root scope as a child of the current scope. */
pushRoot(): ReturnType<Array<Scope>["push"]>,
/** Removes last/current child scope. */ /** Removes last/current child scope. */
pop(): ReturnType<Array<Scope>["pop"]>, pop(): ReturnType<Array<Scope>["pop"]>,
}; };

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25
docs/elements.html
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@ -1,4 +1,4 @@
<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Basic concepts of elements modifications and creations."><title>`deka-dom-el` — Elements</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Elements</h1><p>Basic concepts of elements modifications and creations.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library and motivations.">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations." class="current">2. Elements</a></nav><main><h2>Native JavaScript DOM elements creations</h2><p>Let’s go through all patterns we would like to use and what needs to be improved for better experience.</p><h3>Creating element(s) (with custom attributes)</h3><p>You can create a native DOM element by using the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/createElement" title="MDN documentation for document.createElement()"><code>document.createElement()</code></a>. It is also possible to provide a&nbsp;some attribute(s) declaratively using <code>Object.assign()</code>. More precisely, this way you can sets some <a href="https://developer.mozilla.org/en-US/docs/Glossary/IDL" title="MDN page about Interface Description Language"><abbr title="Interface Description Language">IDL</abbr></a>.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-upo48" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">document.body.append( <!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Basic concepts of elements modifications and creations."><title>`deka-dom-el` — Elements</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Elements</h1><p>Basic concepts of elements modifications and creations.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library.">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations." class="current">2. Elements</a><a href="events" title="Using not only events in UI declaratively.">3. Events and Modifiers</a></nav><main><h2>Native JavaScript DOM elements creations</h2><p>Let’s go through all patterns we would like to use and what needs to be improved for better experience.</p><h3>Creating element(s) (with custom attributes)</h3><p>You can create a native DOM element by using the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/createElement" title="MDN documentation for document.createElement()"><code>document.createElement()</code></a>. It is also possible to provide a&nbsp;some attribute(s) declaratively using <code>Object.assign()</code>. More precisely, this way you can sets some <a href="https://developer.mozilla.org/en-US/docs/Glossary/IDL" title="MDN page about Interface Description Language"><abbr title="Interface Description Language">IDL</abbr></a> also known as a JavaScript property.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-upjw9" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">document.body.append(
document.createElement("div") document.createElement("div")
); );
console.log( console.log(
@ -12,7 +12,7 @@ document.body.append(
{ textContent: "Element’s text content.", style: "color: coral;" } { textContent: "Element’s text content.", style: "color: coral;" }
) )
); );
</code></div><script>Flems(document.getElementById("code-upo48"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"document.body.append(\\n\\tdocument.createElement(\\\"div\\\")\\n);\\nconsole.log(\\n\\t\\\"Emty div is generated inside <body>:\\\",\\n\\tdocument.body.innerHTML.includes(\\\"<div></div>\\\")\\n);\\n\\ndocument.body.append(\\n\\tObject.assign(\\n\\t\\tdocument.createElement(\\\"p\\\"),\\n\\t\\t{ textContent: \\\"Element’s text content.\\\", style: \\\"color: coral;\\\" }\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><p>To make this easier, you can use the <code>el</code> function. Internally in basic examples, it is wrapper around <code>assign(document.createElement(…), { … })</code>.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-23iu2" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, assign } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; </code></div><script>Flems(document.getElementById("code-upjw9"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"document.body.append(\\n\\tdocument.createElement(\\\"div\\\")\\n);\\nconsole.log(\\n\\t\\\"Emty div is generated inside <body>:\\\",\\n\\tdocument.body.innerHTML.includes(\\\"<div></div>\\\")\\n);\\n\\ndocument.body.append(\\n\\tObject.assign(\\n\\t\\tdocument.createElement(\\\"p\\\"),\\n\\t\\t{ textContent: \\\"Element’s text content.\\\", style: \\\"color: coral;\\\" }\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><p>To make this easier, you can use the <code>el</code> function. Internally in basic examples, it is wrapper around <code>assign(document.createElement(…), { … })</code>.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-k2tri" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, assign } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const color= "lightcoral"; const color= "lightcoral";
document.body.append( document.body.append(
el("p", { textContent: "Hello (first time)", style: { color } }) el("p", { textContent: "Hello (first time)", style: { color } })
@ -23,7 +23,7 @@ document.body.append(
{ textContent: "Hello (second time)", style: { color } } { textContent: "Hello (second time)", style: { color } }
) )
); );
</code></div><script>Flems(document.getElementById("code-23iu2"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, assign } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst color= \\\"lightcoral\\\";\\ndocument.body.append(\\n\\tel(\\\"p\\\", { textContent: \\\"Hello (first time)\\\", style: { color } })\\n);\\ndocument.body.append(\\n\\tassign(\\n\\t\\tdocument.createElement(\\\"p\\\"),\\n\\t\\t{ textContent: \\\"Hello (second time)\\\", style: { color } }\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><p>The <code>assign</code> function provides improved behaviour of <code>Object.assign()</code>. You can declaratively sets any IDL and attribute of the given element. Function prefers IDL and fallback to the <code>element.setAttribute</code> if there is no writable property in the element prototype.</p><p>You can study all JavaScript elements interfaces to the corresponding HTML elements. All HTML elements inherits from <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement">HTMLElement</a>. To see all available IDLs for example for paragraphs, see <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLParagraphElement">HTMLParagraphElement</a>. Moreover, the <code>assign</code> provides a&nbsp;way to sets declaratively some convenient properties:</p><ul><li>It is possible to sets <code>data-*</code>/<code>aria-*</code> attributes using object notation.</li><li>In opposite, it is also possible to sets <code>data-*</code>/<code>aria-*</code> attribute using camelCase notation.</li><li>You can use string or object as a&nbsp;value for <code>style</code> property.</li><li><code>className</code> (IDL – preffered)/<code>class</code> are ways to add CSS class to the element. You can use string (similarly to <code>class="…"</code> syntax in HTML) or array of strings. This is handy to concat conditional classes.</li><li>Use <code>classList</code> to toggle specific classes. This will be handy later when the reactivity via signals is beeing introduced.</li><li>The <code>assign</code> also accepts the <code>undefined</code> as a&nbsp;value for any property to remove it from the element declaratively. Also for some IDL the corresponding attribute is removed as it can be confusing. <em>For example, natievly the element’s <code>id</code> is removed by setting the IDL to an empty string.</em></li></ul><p>For processing, the <code>assign</code> internally uses <code>assignAttribute</code> and <code>classListDeclarative</code>.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-t0ms6" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { assignAttribute, classListDeclarative } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; </code></div><script>Flems(document.getElementById("code-k2tri"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, assign } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst color= \\\"lightcoral\\\";\\ndocument.body.append(\\n\\tel(\\\"p\\\", { textContent: \\\"Hello (first time)\\\", style: { color } })\\n);\\ndocument.body.append(\\n\\tassign(\\n\\t\\tdocument.createElement(\\\"p\\\"),\\n\\t\\t{ textContent: \\\"Hello (second time)\\\", style: { color } }\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><p>The <code>assign</code> function provides improved behaviour of <code>Object.assign()</code>. You can declaratively sets any IDL and attribute of the given element. Function prefers IDL and fallback to the <code>element.setAttribute</code> if there is no writable property in the element prototype.</p><p>You can study all JavaScript elements interfaces to the corresponding HTML elements. All HTML elements inherits from <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement">HTMLElement</a>. To see all available IDLs for example for paragraphs, see <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLParagraphElement">HTMLParagraphElement</a>. Moreover, the <code>assign</code> provides a&nbsp;way to sets declaratively some convenient properties:</p><ul><li>It is possible to sets <code>data-*</code>/<code>aria-*</code> attributes using object notation.</li><li>In opposite, it is also possible to sets <code>data-*</code>/<code>aria-*</code> attribute using camelCase notation.</li><li>You can use string or object as a&nbsp;value for <code>style</code> property.</li><li><code>className</code> (IDL – preffered)/<code>class</code> are ways to add CSS class to the element. You can use string (similarly to <code>class="…"</code> syntax in HTML) or array of strings. This is handy to concat conditional classes.</li><li>Use <code>classList</code> to toggle specific classes. This will be handy later when the reactivity via signals is beeing introduced.</li><li>The <code>assign</code> also accepts the <code>undefined</code> as a&nbsp;value for any property to remove it from the element declaratively. Also for some IDL the corresponding attribute is removed as it can be confusing. <em>For example, natievly the element’s <code>id</code> is removed by setting the IDL to an empty string.</em></li></ul><p>For processing, the <code>assign</code> internally uses <code>assignAttribute</code> and <code>classListDeclarative</code>.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-1pz42" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { assignAttribute, classListDeclarative } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const paragraph= document.createElement("p"); const paragraph= document.createElement("p");
assignAttribute(paragraph, "textContent", "Hello, world!"); assignAttribute(paragraph, "textContent", "Hello, world!");
@ -48,7 +48,7 @@ console.log(paragraph.outerHTML);
document.body.append( document.body.append(
paragraph paragraph
); );
</code></div><script>Flems(document.getElementById("code-t0ms6"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { assignAttribute, classListDeclarative } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst paragraph= document.createElement(\\\"p\\\");\\n\\nassignAttribute(paragraph, \\\"textContent\\\", \\\"Hello, world!\\\");\\nassignAttribute(paragraph, \\\"style\\\", { color: \\\"navy\\\" });\\n\\nassignAttribute(paragraph, \\\"dataTest1\\\", \\\"v1\\\");\\nassignAttribute(paragraph, \\\"dataset\\\", { test2: \\\"v2\\\" });\\n\\nassignAttribute(paragraph, \\\"ariaLabel\\\", \\\"v1\\\");\\nassignAttribute(paragraph, \\\"ariaset\\\", { role: \\\"none\\\" });\\n\\n\\nclassListDeclarative(paragraph, {\\n\\tclassAdd: true,\\n\\tclassRemove: false,\\n\\tclassAdd1: 1,\\n\\tclassRemove1: 0,\\n\\tclassToggle: -1\\n});\\n\\nconsole.log(paragraph.outerHTML);\\ndocument.body.append(\\n\\tparagraph\\n);\\n\"}],\"toolbar\":false}"));</script><h3>Native JavaScript templating</h3><p>By default, the native JS has no good way to define HTML template using DOM API:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-6ci2z" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">document.body.append( </code></div><script>Flems(document.getElementById("code-1pz42"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { assignAttribute, classListDeclarative } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst paragraph= document.createElement(\\\"p\\\");\\n\\nassignAttribute(paragraph, \\\"textContent\\\", \\\"Hello, world!\\\");\\nassignAttribute(paragraph, \\\"style\\\", { color: \\\"navy\\\" });\\n\\nassignAttribute(paragraph, \\\"dataTest1\\\", \\\"v1\\\");\\nassignAttribute(paragraph, \\\"dataset\\\", { test2: \\\"v2\\\" });\\n\\nassignAttribute(paragraph, \\\"ariaLabel\\\", \\\"v1\\\");\\nassignAttribute(paragraph, \\\"ariaset\\\", { role: \\\"none\\\" });\\n\\n\\nclassListDeclarative(paragraph, {\\n\\tclassAdd: true,\\n\\tclassRemove: false,\\n\\tclassAdd1: 1,\\n\\tclassRemove1: 0,\\n\\tclassToggle: -1\\n});\\n\\nconsole.log(paragraph.outerHTML);\\ndocument.body.append(\\n\\tparagraph\\n);\\n\"}],\"toolbar\":false}"));</script><h3>Native JavaScript templating</h3><p>By default, the native JS has no good way to define HTML template using DOM API:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-vj7hf" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">document.body.append(
document.createElement("div"), document.createElement("div"),
document.createElement("span"), document.createElement("span"),
document.createElement("main") document.createElement("main")
@ -59,7 +59,7 @@ const template= document.createElement("main").append(
document.createElement("span"), document.createElement("span"),
); );
console.log(typeof template==="undefined"); console.log(typeof template==="undefined");
</code></div><script>Flems(document.getElementById("code-6ci2z"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"document.body.append(\\n\\tdocument.createElement(\\\"div\\\"),\\n\\tdocument.createElement(\\\"span\\\"),\\n\\tdocument.createElement(\\\"main\\\")\\n);\\nconsole.log(document.body.innerHTML.includes(\\\"<div></div><span></span><main></main>\\\"));\\nconst template= document.createElement(\\\"main\\\").append(\\n\\tdocument.createElement(\\\"div\\\"),\\n\\tdocument.createElement(\\\"span\\\"),\\n);\\nconsole.log(typeof template===\\\"undefined\\\");\\n\"}],\"toolbar\":false}"));</script><p>This library therefore overwrites the <code>append</code> method of created elements to always return parent element.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-hq04b" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; </code></div><script>Flems(document.getElementById("code-vj7hf"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"document.body.append(\\n\\tdocument.createElement(\\\"div\\\"),\\n\\tdocument.createElement(\\\"span\\\"),\\n\\tdocument.createElement(\\\"main\\\")\\n);\\nconsole.log(document.body.innerHTML.includes(\\\"<div></div><span></span><main></main>\\\"));\\nconst template= document.createElement(\\\"main\\\").append(\\n\\tdocument.createElement(\\\"div\\\"),\\n\\tdocument.createElement(\\\"span\\\"),\\n);\\nconsole.log(typeof template===\\\"undefined\\\");\\n\"}],\"toolbar\":false}"));</script><p>This library therefore overwrites the <code>append</code> method of created elements to always return parent element.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-tzkwh" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
document.head.append( document.head.append(
el("style").append( el("style").append(
"tr, td{ border: 1px solid red; padding: 1em; }", "tr, td{ border: 1px solid red; padding: 1em; }",
@ -83,7 +83,7 @@ document.body.append(
) )
) )
); );
</code></div><script>Flems(document.getElementById("code-hq04b"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\ndocument.head.append(\\n\\tel(\\\"style\\\").append(\\n\\t\\t\\\"tr, td{ border: 1px solid red; padding: 1em; }\\\",\\n\\t\\t\\\"table{ border-collapse: collapse; }\\\"\\n\\t)\\n);\\ndocument.body.append(\\n\\tel(\\\"p\\\", \\\"Example of a complex template. Using for example nesting lists:\\\"),\\n\\tel(\\\"ul\\\").append(\\n\\t\\tel(\\\"li\\\", \\\"List item 1\\\"),\\n\\t\\tel(\\\"li\\\").append(\\n\\t\\t\\tel(\\\"ul\\\").append(\\n\\t\\t\\t\\tel(\\\"li\\\", \\\"Nested list item 1\\\"),\\n\\t\\t\\t)\\n\\t\\t)\\n\\t),\\n\\tel(\\\"table\\\").append(\\n\\t\\tel(\\\"tr\\\").append(\\n\\t\\t\\tel(\\\"td\\\", \\\"Row 1 – Col 1\\\"),\\n\\t\\t\\tel(\\\"td\\\", \\\"Row 1 – Col 2\\\")\\n\\t\\t)\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><h3>Basic (state-less) components</h3><p>You can use functions for encapsulation (repeating) logic. The <code>el</code> accepts function as first argument. In that case, the function should return dom elements and the second argument for <code>el</code> is argument for given element.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-kfe4p" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; </code></div><script>Flems(document.getElementById("code-tzkwh"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\ndocument.head.append(\\n\\tel(\\\"style\\\").append(\\n\\t\\t\\\"tr, td{ border: 1px solid red; padding: 1em; }\\\",\\n\\t\\t\\\"table{ border-collapse: collapse; }\\\"\\n\\t)\\n);\\ndocument.body.append(\\n\\tel(\\\"p\\\", \\\"Example of a complex template. Using for example nesting lists:\\\"),\\n\\tel(\\\"ul\\\").append(\\n\\t\\tel(\\\"li\\\", \\\"List item 1\\\"),\\n\\t\\tel(\\\"li\\\").append(\\n\\t\\t\\tel(\\\"ul\\\").append(\\n\\t\\t\\t\\tel(\\\"li\\\", \\\"Nested list item 1\\\"),\\n\\t\\t\\t)\\n\\t\\t)\\n\\t),\\n\\tel(\\\"table\\\").append(\\n\\t\\tel(\\\"tr\\\").append(\\n\\t\\t\\tel(\\\"td\\\", \\\"Row 1 – Col 1\\\"),\\n\\t\\t\\tel(\\\"td\\\", \\\"Row 1 – Col 2\\\")\\n\\t\\t)\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><h3>Basic (state-less) components</h3><p>You can use functions for encapsulation (repeating) logic. The <code>el</code> accepts function as first argument. In that case, the function should return dom elements and the second argument for <code>el</code> is argument for given element.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-xhvx1" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
document.head.append( document.head.append(
el("style").append( el("style").append(
".class1{ font-weight: bold; }", ".class1{ font-weight: bold; }",
@ -100,4 +100,15 @@ function component({ className, textContent }){
el("p", textContent) el("p", textContent)
); );
} }
</code></div><script>Flems(document.getElementById("code-kfe4p"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\ndocument.head.append(\\n\\tel(\\\"style\\\").append(\\n\\t\\t\\\".class1{ font-weight: bold; }\\\",\\n\\t\\t\\\".class2{ color: purple; }\\\"\\n\\t)\\n);\\ndocument.body.append(\\n\\tel(component, { className: \\\"class2\\\", textContent: \\\"Hello World!\\\" }),\\n\\tcomponent({ className: \\\"class2\\\", textContent: \\\"Hello World!\\\" })\\n);\\n\\nfunction component({ className, textContent }){\\n\\treturn el(\\\"div\\\", { className: [ \\\"class1\\\", className ] }).append(\\n\\t\\tel(\\\"p\\\", textContent)\\n\\t);\\n}\\n\"}],\"toolbar\":false}"));</script><p>It is nice to use similar naming convention as native DOM API.</p><h3>Creating non-HTML elements</h3><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><a rel="prev" href="./" title="Introducing a&nbsp;library and motivations."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->Introduction (previous)</a><!--<dde:mark type="component" name="pageLink" host="this" ssr/>--></div></main></body></html> </code></div><script>Flems(document.getElementById("code-xhvx1"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\ndocument.head.append(\\n\\tel(\\\"style\\\").append(\\n\\t\\t\\\".class1{ font-weight: bold; }\\\",\\n\\t\\t\\\".class2{ color: purple; }\\\"\\n\\t)\\n);\\ndocument.body.append(\\n\\tel(component, { className: \\\"class2\\\", textContent: \\\"Hello World!\\\" }),\\n\\tcomponent({ className: \\\"class2\\\", textContent: \\\"Hello World!\\\" })\\n);\\n\\nfunction component({ className, textContent }){\\n\\treturn el(\\\"div\\\", { className: [ \\\"class1\\\", className ] }).append(\\n\\t\\tel(\\\"p\\\", textContent)\\n\\t);\\n}\\n\"}],\"toolbar\":false}"));</script><p>As you can see, in case of state-less/basic components there is no difference between calling component function directly or using <code>el</code> function.</p><p class="notice">It is nice to use similar naming convention as native DOM API. This allows us to use <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment" title="Destructuring assignment | MDN">the destructuring assignment syntax</a> and keep track of the native API (things are best remembered through regular use).</p><h3>Creating non-HTML elements</h3><p>Similarly to the native DOM API (<a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/createElementNS" title="MDN"><code>document.createElementNS</code></a>) for non-HTML elements we need to tell JavaScript which kind of the element to create. We can use the <code>elNS</code> function:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-h8j0w" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { elNS, assign } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const elSVG= elNS("http://www.w3.org/2000/svg");
const elMath= elNS("http://www.w3.org/1998/Math/MathML");
document.body.append(
elSVG("svg"), // see https://developer.mozilla.org/en-US/docs/Web/SVG and https://developer.mozilla.org/en-US/docs/Web/API/SVGElement
elMath("math") // see https://developer.mozilla.org/en-US/docs/Web/MathML and https://developer.mozilla.org/en-US/docs/Web/MathML/Global_attributes
);
console.log(
document.body.innerHTML.includes("&lt;svg&gt;&lt;/svg&gt;&lt;math&gt;&lt;/math&gt;")
)
</code></div><script>Flems(document.getElementById("code-h8j0w"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { elNS, assign } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst elSVG= elNS(\\\"http://www.w3.org/2000/svg\\\");\\nconst elMath= elNS(\\\"http://www.w3.org/1998/Math/MathML\\\");\\ndocument.body.append(\\n\\telSVG(\\\"svg\\\"), // see https://developer.mozilla.org/en-US/docs/Web/SVG and https://developer.mozilla.org/en-US/docs/Web/API/SVGElement\\n\\telMath(\\\"math\\\") // see https://developer.mozilla.org/en-US/docs/Web/MathML and https://developer.mozilla.org/en-US/docs/Web/MathML/Global_attributes\\n);\\n\\nconsole.log(\\n\\tdocument.body.innerHTML.includes(\\\"<svg></svg><math></math>\\\")\\n)\\n\"}],\"toolbar\":false}"));</script><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><a rel="prev" href="./" title="Introducing a&nbsp;library."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->Introduction (previous)</a><a rel="next" href="events" title="Using not only events in UI declaratively."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->(next) Events and Modifiers</a></div></main></body></html>

1
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@ -0,0 +1 @@
<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Using not only events in UI declaratively."><title>`deka-dom-el` — Events and Modifiers</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Events and Modifiers</h1><p>Using not only events in UI declaratively.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library.">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations.">2. Elements</a><a href="events" title="Using not only events in UI declaratively." class="current">3. Events and Modifiers</a></nav><main><h2>Listenning to the native DOM events and other Modifiers</h2><p>We quickly introduce helper to listening to the native DOM events. And library syntax/pattern so-called <em>Modifier</em> to incorporate not only this in UI templates declaratively.</p><h3>Add events listeners</h3><p></p><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><a rel="prev" href="elements" title="Basic concepts of elements modifications and creations."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->Elements (previous)</a><!--<dde:mark type="component" name="pageLink" host="this" ssr/>--></div></main></body></html>

4
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@ -1,4 +1,4 @@
<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Introducing a&nbsp;library and motivations."><title>`deka-dom-el` — Introduction</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Introduction</h1><p>Introducing a&nbsp;library and motivations.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library and motivations." class="current">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations.">2. Elements</a></nav><main><p>The library tries to provide pure JavaScript tool(s) to create reactive interfaces.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-i0ffd" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, S } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; <!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Introducing a&nbsp;library."><title>`deka-dom-el` — Introduction</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Introduction</h1><p>Introducing a&nbsp;library.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library." class="current">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations.">2. Elements</a><a href="events" title="Using not only events in UI declaratively.">3. Events and Modifiers</a></nav><main><p>The library tries to provide pure JavaScript tool(s) to create reactive interfaces.</p><p>We start with creating and modifying a&nbsp;static elemnets and end up with UI templates. <i>From <code>document.createElement</code> to <code>el</code>.</i> Then we go through the native events system and the way to include it declaratively in UI templates. <i>From <code>element.addEventListener</code> to <code>on</code>.</i></p><p>Next step is providing interactivity not only for our UI templates. We introduce signals (<code>S</code>) and how them incorporate to UI templates.</p><p>Now we will clarify how the signals are incorporated into our templates with regard to application performance. This is not the only reason the library uses <code>scope</code>s. We will look at how they work in components represented in JavaScript by functions.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-l2c7o" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, S } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const clicks= S(0); const clicks= S(0);
document.body.append( document.body.append(
el().append( el().append(
@ -12,4 +12,4 @@ document.body.append(
}) })
) )
); );
</code></div><script>Flems(document.getElementById("code-i0ffd"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, S } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst clicks= S(0);\\ndocument.body.append(\\n\\tel().append(\\n\\t\\tel(\\\"p\\\", S(()=>\\n\\t\\t\\t\\\"Hello World \\\"+\\\"🎉\\\".repeat(clicks())\\n\\t\\t)),\\n\\t\\tel(\\\"button\\\", {\\n\\t\\t\\ttype: \\\"button\\\",\\n\\t\\t\\tonclick: ()=> clicks(clicks()+1),\\n\\t\\t\\ttextContent: \\\"Fire\\\"\\n\\t\\t})\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><!--<dde:mark type="component" name="pageLink" host="this" ssr/>--><a rel="next" href="elements" title="Basic concepts of elements modifications and creations."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->(next) Elements</a></div></main></body></html> </code></div><script>Flems(document.getElementById("code-l2c7o"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, S } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst clicks= S(0);\\ndocument.body.append(\\n\\tel().append(\\n\\t\\tel(\\\"p\\\", S(()=>\\n\\t\\t\\t\\\"Hello World \\\"+\\\"🎉\\\".repeat(clicks())\\n\\t\\t)),\\n\\t\\tel(\\\"button\\\", {\\n\\t\\t\\ttype: \\\"button\\\",\\n\\t\\t\\tonclick: ()=> clicks(clicks()+1),\\n\\t\\t\\ttextContent: \\\"Fire\\\"\\n\\t\\t})\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><!--<dde:mark type="component" name="pageLink" host="this" ssr/>--><a rel="next" href="elements" title="Basic concepts of elements modifications and creations."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->(next) Elements</a></div></main></body></html>

11
docs_src/components/examples/dekaElNS.js Normal file
View File

@ -0,0 +1,11 @@
import { elNS, assign } from "../../../index-with-signals.js";
const elSVG= elNS("http://www.w3.org/2000/svg");
const elMath= elNS("http://www.w3.org/1998/Math/MathML");
document.body.append(
elSVG("svg"), // see https://developer.mozilla.org/en-US/docs/Web/SVG and https://developer.mozilla.org/en-US/docs/Web/API/SVGElement
elMath("math") // see https://developer.mozilla.org/en-US/docs/Web/MathML and https://developer.mozilla.org/en-US/docs/Web/MathML/Global_attributes
);
console.log(
document.body.innerHTML.includes("<svg></svg><math></math>")
)

19
docs_src/elements.html.js
View File

@ -28,7 +28,7 @@ export function page({ pkg, info }){
title: "MDN page about Interface Description Language" title: "MDN page about Interface Description Language"
}).append( }).append(
el("abbr", { textContent: "IDL", title: "Interface Description Language" }) el("abbr", { textContent: "IDL", title: "Interface Description Language" })
), "." ), " also known as a JavaScript property."
), ),
el(example, { src: fileURL("./components/examples/nativeCreateElement.js"), page_id }), el(example, { src: fileURL("./components/examples/nativeCreateElement.js"), page_id }),
el("p").append( el("p").append(
@ -94,10 +94,23 @@ export function page({ pkg, info }){
"In that case, the function should return dom elements and the second argument for ", el("code", "el"), " is argument for given element." "In that case, the function should return dom elements and the second argument for ", el("code", "el"), " is argument for given element."
), ),
el(example, { src: fileURL("./components/examples/dekaBasicComponent.js"), page_id }), el(example, { src: fileURL("./components/examples/dekaBasicComponent.js"), page_id }),
el("p", "It is nice to use similar naming convention as native DOM API."), el("p").append(
"As you can see, in case of state-less/basic components there is no difference",
" between calling component function directly or using ", el("code", "el"), " function.",
),
el("p", { className: "notice" }).append(
"It is nice to use similar naming convention as native DOM API. ",
"This allows us to use ", el("a", { textContent: "the destructuring assignment syntax", href: "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment", title: "Destructuring assignment | MDN" }),
" and keep track of the native API (things are best remembered through regular use).",
),
el("h3", "Creating non-HTML elements"), el("h3", "Creating non-HTML elements"),
// example & notes el("p").append(
"Similarly to the native DOM API (", el("a", { href: "https://developer.mozilla.org/en-US/docs/Web/API/Document/createElementNS", title: "MDN" }).append(el("code", "document.createElementNS")), ") for non-HTML elements",
" we need to tell JavaScript which kind of the element to create.",
" We can use the ", el("code", "elNS"), " function:"
),
el(example, { src: fileURL("./components/examples/dekaElNS.js"), page_id }),
el(prevNext, info) el(prevNext, info)
) )

30
docs_src/events.html.js Normal file
View File

@ -0,0 +1,30 @@
import "./global.css.js";
import { el } from "deka-dom-el";
import { example } from "./components/example.html.js";
/** @param {string} url */
const fileURL= url=> new URL(url, import.meta.url);
import { header } from "./layout/head.html.js";
import { prevNext } from "./components/prevNext.html.js";
/** @param {import("./types.d.ts").PageAttrs} attrs */
export function page({ pkg, info }){
const page_id= info.id;
return el().append(
el(header, { info, pkg }),
el("main").append(
el("h2", "Listenning to the native DOM events and other Modifiers"),
el("p").append(
"We quickly introduce helper to listening to the native DOM events.",
" ",
"And library syntax/pattern so-called ", el("em", "Modifier"), " to",
" incorporate not only this in UI templates declaratively."
),
el("h3", "Add events listeners"),
el("p").append(
),
el(prevNext, info)
)
);
}

24
docs_src/index.html.js
View File

@ -11,6 +11,30 @@ export function page({ pkg, info }){
el(header, { info, pkg }), el(header, { info, pkg }),
el("main").append( el("main").append(
el("p", "The library tries to provide pure JavaScript tool(s) to create reactive interfaces."), el("p", "The library tries to provide pure JavaScript tool(s) to create reactive interfaces."),
el("p").append(
"We start with creating and modifying a static elemnets and end up with UI templates.",
" ",
el("i").append(
"From ", el("code", "document.createElement"), " to ", el("code", "el"), "."
),
" ",
"Then we go through the native events system and the way to include it declaratively in UI templates.",
" ",
el("i").append(
"From ", el("code", "element.addEventListener"), " to ", el("code", "on"), "."
),
),
el("p").append(
"Next step is providing interactivity not only for our UI templates.",
" ",
"We introduce signals (", el("code", "S"), ") and how them incorporate to UI templates.",
),
el("p").append(
"Now we will clarify how the signals are incorporated into our templates with regard ",
"to application performance. This is not the only reason the library uses ",
el("code", "scope"), "s. We will look at how they work in components represented ",
"in JavaScript by functions."
),
el(example, { src: new URL("./components/examples/helloWorld.js", import.meta.url), page_id }), el(example, { src: new URL("./components/examples/helloWorld.js", import.meta.url), page_id }),
el(prevNext, info) el(prevNext, info)
) )

5
docs_src/ssr.js
View File

@ -3,8 +3,9 @@ export const path_target= {
css: "docs/" css: "docs/"
}; };
export const pages= [ export const pages= [
{ id: "index", href: "./", title: "Introduction", description: "Introducing a library and motivations." }, { id: "index", href: "./", title: "Introduction", description: "Introducing a library." },
{ id: "elements", href: "elements", title: "Elements", description: "Basic concepts of elements modifications and creations." } { id: "elements", href: "elements", title: "Elements", description: "Basic concepts of elements modifications and creations." },
{ id: "events", href: "events", title: "Events and Modifiers", description: "Using not only events in UI declaratively." },
]; ];
/** /**
* @typedef registerClientFile * @typedef registerClientFile

6
examples/components/fullNameComponent.js
View File

@ -10,8 +10,10 @@ export function fullNameComponent(){
const name= labels.map(_=> S("")); const name= labels.map(_=> S(""));
const full_name= S(()=> const full_name= S(()=>
name.map(l=> l()).filter(Boolean).join(" ") || "-"); name.map(l=> l()).filter(Boolean).join(" ") || "-");
scope.host(on.connected(()=> console.log(fullNameComponent))); scope.host(
scope.host(on.disconnected(()=> console.log(fullNameComponent))) on.connected(()=> console.log(fullNameComponent)),
on.disconnected(()=> console.log(fullNameComponent))
);
const elSVG= elNS("http://www.w3.org/2000/svg"); const elSVG= elNS("http://www.w3.org/2000/svg");
return el("div", { className }).append( return el("div", { className }).append(

16
examples/components/webComponent.js
View File

@ -23,17 +23,19 @@ export class CustomHTMLTestElement extends HTMLElement{
render({ test }){ render({ test }){
console.log(scope.state); console.log(scope.state);
scope.host(on.connected(()=> console.log(CustomHTMLTestElement))); scope.host(
scope.host(on.attributeChanged(e=> console.log(e))); on.connected(()=> console.log(CustomHTMLTestElement)),
scope.host(on.disconnected(()=> console.log(CustomHTMLTestElement))); on.attributeChanged(e=> console.log(e)),
on.disconnected(()=> console.log(CustomHTMLTestElement))
);
const name= S.attribute("name"); const name= S.attribute("name");
const preName= S.attribute("pre-name"); const preName= S.attribute("pre-name");
console.log({ name, test, preName}); console.log({ name, test, preName});
return el("p").append( return el("p").append(
el("#text", { textContent: name }), el("#text", name),
el("#text", { textContent: test }), el("#text", test),
el("#text", { textContent: preName }), el("#text", preName),
el("button", { type: "button", textContent: "pre-name", onclick: ()=> preName("Ahoj") }) el("button", { type: "button", textContent: "pre-name", onclick: ()=> preName("Ahoj") })
); );
} }
@ -48,7 +50,7 @@ lifecycleToEvents(CustomHTMLTestElement)
customElements.define(CustomHTMLTestElement.tagName, CustomHTMLTestElement); customElements.define(CustomHTMLTestElement.tagName, CustomHTMLTestElement);
function customElementRender(_this, render){ function customElementRender(_this, render){
scope.push({ scope: _this, host: (...a)=> a.length ? a[0](_this) : _this, custom_element: _this }); scope.push({ scope: _this, host: (...c)=> c.length ? c.forEach(c=> c(_this)) : _this, custom_element: _this });
const out= render(_this); const out= render(_this);
scope.pop(); scope.pop();
return out; return out;

2
index.d.ts vendored
View File

@ -145,6 +145,8 @@ export const scope: {
state: Scope[], state: Scope[],
/** Adds new child scope. All attributes are inherited by default. */ /** Adds new child scope. All attributes are inherited by default. */
push(scope: Partial<Scope>): ReturnType<Array<Scope>["push"]>, push(scope: Partial<Scope>): ReturnType<Array<Scope>["push"]>,
/** Adds root scope as a child of the current scope. */
pushRoot(): ReturnType<Array<Scope>["push"]>,
/** Removes last/current child scope. */ /** Removes last/current child scope. */
pop(): ReturnType<Array<Scope>["pop"]>, pop(): ReturnType<Array<Scope>["pop"]>,
}; };

20
src/dom.js
View File

@ -19,11 +19,15 @@ export const scope= {
}, },
get state(){ return [ ...scopes ]; }, get state(){ return [ ...scopes ]; },
push(s= {}){ push(s= {}){ return scopes.push(Object.assign({}, this.current, { prevent: false }, s)); },
return scopes.push(Object.assign({}, this.current, { prevent: false }, s)); pushRoot(){ return scopes.push(scopes[0]); },
pop(){
if(scopes.length===1) return;
return scopes.pop();
}, },
pop(){ return scopes.pop(); },
}; };
function append(...els){ this.appendOrig(...els); return this; }
export function chainableAppend(el){ if(el.append===append) return el; el.appendOrig= el.append; el.append= append; return el; }
let namespace; let namespace;
export function createElement(tag, attributes, ...modifiers){ export function createElement(tag, attributes, ...modifiers){
/* jshint maxcomplexity: 15 */ /* jshint maxcomplexity: 15 */
@ -36,7 +40,7 @@ export function createElement(tag, attributes, ...modifiers){
switch(true){ switch(true){
case typeof tag==="function": { case typeof tag==="function": {
scoped= 1; scoped= 1;
scope.push({ scope: tag, host: c=> c ? (scoped===1 ? modifiers.unshift(c) : c(el_host), undefined) : el_host }); scope.push({ scope: tag, host: (...c)=> c.length ? (scoped===1 ? modifiers.unshift(...c) : c.forEach(c=> c(el_host)), undefined) : el_host });
el= tag(attributes || undefined); el= tag(attributes || undefined);
const is_fragment= el instanceof DocumentFragment; const is_fragment= el instanceof DocumentFragment;
if(el.nodeName==="#comment") break; if(el.nodeName==="#comment") break;
@ -72,11 +76,6 @@ createElement.mark= function(attrs, is_open= false){
if(!is_open) out.end= document.createComment("</dde:mark>"); if(!is_open) out.end= document.createComment("</dde:mark>");
return out; return out;
}; };
createElement.later= function(){
const el= createElement.mark({ type: "later" });
el.append= el.prepend= function(...els){ el.after(...els); return el; };
return el;
};
export { createElement as el }; export { createElement as el };
//const namespaceHelper= ns=> ns==="svg" ? "http://www.w3.org/2000/svg" : ns; //const namespaceHelper= ns=> ns==="svg" ? "http://www.w3.org/2000/svg" : ns;
@ -180,6 +179,3 @@ function attrArrToStr(attr){ return Array.isArray(attr) ? attr.filter(Boolean).j
function setRemove(obj, prop, key, val){ return obj[ (isUndef(val) ? "remove" : "set") + prop ](key, attrArrToStr(val)); } function setRemove(obj, prop, key, val){ return obj[ (isUndef(val) ? "remove" : "set") + prop ](key, attrArrToStr(val)); }
function setRemoveNS(obj, prop, key, val, ns= null){ return obj[ (isUndef(val) ? "remove" : "set") + prop + "NS" ](ns, key, attrArrToStr(val)); } function setRemoveNS(obj, prop, key, val, ns= null){ return obj[ (isUndef(val) ? "remove" : "set") + prop + "NS" ](ns, key, attrArrToStr(val)); }
function setDelete(obj, key, val){ Reflect.set(obj, key, val); if(!isUndef(val)) return; return Reflect.deleteProperty(obj, key); } function setDelete(obj, key, val){ Reflect.set(obj, key, val); if(!isUndef(val)) return; return Reflect.deleteProperty(obj, key); }
function append(...els){ this.appendOrig(...els); return this; }
function chainableAppend(el){ if(el.append===append) return el; el.appendOrig= el.append; el.append= append; return el; }

9
src/events.js
View File

@ -51,6 +51,15 @@ on.disconnected= function(listener, options){
return element; return element;
}; };
}; };
const store_abort= new WeakMap();
on.disconnectedAsAbort= function(host){
if(store_abort.has(host)) return store_abort.get(host);
const a= new AbortController();
store_abort.set(host, a);
host(on.disconnected(()=> a.abort()));
return a;
};
on.attributeChanged= function(listener, options){ on.attributeChanged= function(listener, options){
const name= "attributeChanged"; const name= "attributeChanged";
if(typeof options !== "object") if(typeof options !== "object")