From e6d18a25cc742cc4c70766d9949f8dae9a4569ce Mon Sep 17 00:00:00 2001
From: Sascha Schulz <sschulz@dh-software.de>
Date: Mo, 15 Jan 2024 16:14:17 +0100
Subject: [PATCH] add web components introduction
---
index.html | 1003 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 1.002 insertions(+), 1 deletions(-)
diff --git a/index.html b/index.html
index d31dd79..e2e7f58 100644
--- a/index.html
+++ b/index.html
@@ -2604,6 +2604,1007 @@
</code>
</pre>
</section>
+ <section>
+ <h3>Strings</h3>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ const empty1 = "";
+ const empty1 = '';
+
+ const s1 = 'abc';
+ const s2 = "abc";
+
+ const s3 = 'a"b"c';
+ const s4 = "a\"b\"c";
+
+ const s5 = 'a\'b\'c';
+ const s6 = "a'b'c";
+
+ const s7 = `a'b'"c"`;
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h5>Strings zusammenfügen</h5>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ const age = 10;
+
+ // Konkatenation
+ const s = "My age is " + number + "!";
+
+ // Interpolation
+ const s = `My age is ${number}!`;
+
+ // => "My age is 10!"
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h5>Template Strings</h5>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ function sayHello() {
+ return "Hello";
+ }
+
+ let interpolation = `${sayHello()}`;
+
+ // => "Hello"
+
+ interpolation = `5 + 5 = ${5+5}`;
+
+ // => "5 + 5 = 10"
+ </code>
+ </pre>
+ </section>
+ <section>
+ lit
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ return html`<div>hello world!</div>`
+ </code>
+ </pre>
+ </section>
+ <section>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ function myTag() {
+ console.log(arguments);
+
+ // return 5;
+ // return true;
+ return "abc";
+ }
+
+ let interpolation = myTag`a ${5} b ${6} c`;
+
+ // => "abc"
+ </code>
+ </pre>
+ <pre>
+ <code class="bash" data-trim data-line-numbers>
+ Arguments(3) [Array(3), 5, 6]
+ 0 : (3) ['a ', ' b ', ' c', raw: Array(3)]
+ 1 : 5
+ 2 : 6
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h5>Aufgabe</h5>
+ <p>Schreibe ein Tag, welches die Zahlen aus den dynamischen Ausdrücken zusammenrechnet (<code>strings.js</code>)</p>
+ </section>
+ <section>
+ <h5>Lösung</h5>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ function add(parts, ...numbers) {
+ return numbers.reduce((p, c) => p + c, 0);
+ }
+
+ let sum = add`a ${5} b ${6} c`;
+
+ console.log(sum);
+
+ // => 11
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h5>Rest-Operator</h5>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ function add(...numbers) {
+ return numbers.reduce((p, c) => p + c, 0);
+ }
+
+ add(1, 2, 3); // => 6
+ </code>
+ </pre>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ const o1 = {a: 1, b: 2};
+ const o2 = {x: 5, y: 6, ...o1};
+ </code>
+ </pre>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ const a1 = [4, 5, 6];
+ const a2 = [1, 2, 3, ...a1];
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Relevante Browser-APIs</h3>
+ </section>
+ <section>
+ <h5>window</h5>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ window.innerWidth; // innere Auflösung des sichtbaren Fensters
+ window.innerHeight;
+ window.outerWidth; // äußere Auflösung des Browserfensters inklusive Adresszeile usw.
+ window.outerHeight;
+
+ window.addEventListener(); // Events an das äußerste "Dach"-Element hängen
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h5>location</h5>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ location.href; // aktuelle URL
+ location.host; // aktuelle Domain, z.B. "www.google.de"
+ location.protocol; // aktuelles Protokoll, z.B. "https:"
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h5>Navigator</h5>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ navigator.language; // bevorzugte Browsersprache, z.B. "de"
+ navigator.userAgent; // z.B. "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) [...]"
+ navigator
+ .mediaDevices
+ .getDisplayMedia(); // Fordere Erlaubis zum Streamen von Anwendungen oder Bildschirmen an
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h5>Document</h5>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ document.body; // <body>-Element der Seite
+ document.activeElement; // aktives Element der Seite, welche gerade den Fokus besitzt
+ document.cookie; // für die aktuelle Seite gesetzte Cookies
+ document.execCommand("copy"); // Texte in die Zwischenablage zu schreiben
+ document.createElement("div"); // erzeuge neues DOM-Element mit angegebenen Tag
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h5>LocalStorage</h5>
+ <pre>
+ <code class="js" data-trim data-line-numbers>
+ // auf 5MB Daten pro Domain begrenzt
+ localStorage.getItem(key); // Element holen
+ localStorage.setItem(key, value); // Element setzen
+ localStorage.removeItem(key); // Element entfernen
+ </code>
+ </pre>
+ </section>
+ </section>
+ <section>
+ <section>
+ <h2>CSS</h2>
+ <img data-src="/assets/images/css-sucks.png">
+ </section>
+ <section>
+ <h3>Warum CSS?</h3>
+ <ul>
+ <li>Erhöhte Zugänglichkeit des Inhalts</li>
+ <li>Wiederverwendbarkeit</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Syntax</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ selector [, selector2, selector3, ...] {
+ property1: value;
+ property2: value;
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Beispiel</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ html, body {
+ width: 100%;
+ height: 100%;
+ margin: 0;
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Selektoren</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ /* Elemente */
+ html, body {...}
+
+ /* IDs */
+ #my-id {...}
+
+ /* Klassen */
+ .my-class {...}
+
+ /* Pseudo-Klassen */
+ div:hover {...}
+
+ /* Attribute */
+ div[my-attribut="abc"] {...}
+
+ /* Kombinationen */
+ div.my-class#my-id {...}
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Variablen</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ html {
+ --my-background-color: #abcdef;
+ }
+
+ html div {
+ background-color: var(--my-background-color, white);
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Das <code>display</code>-Attribut</h3>
+ </section>
+ <section>
+ <p>block</p>
+ <img data-src="/assets/images/css-display-block.svg">
+ <ul>
+ <li>untereinander angeordnet</li>
+ <li>nehmen sich die volle Breite</li>
+ <li><code>width</code> und <code>height</code> möglich</li>
+ </ul>
+ </section>
+ <section>
+ <p>inline</p>
+ <img data-src="/assets/images/css-display-inline.svg">
+ <ul>
+ <li>Standard bei <code>Custom Elements</code></li>
+ <li>nur so groß wie der content</li>
+ <li><code>width</code> und <code>height</code> nicht möglich</li>
+ <li>nebeneinander angeordnet</li>
+ </ul>
+ </section>
+ <section>
+ <p>inline-block</p>
+ <img data-src="/assets/images/css-display-inline-block.svg">
+ <ul>
+ <li>Mischform von <code>block</code> und <code>inline</code></li>
+ <li>nur so groß wie der content</li>
+ <li><code>width</code> und <code>height</code> möglich</li>
+ <li>nebeneinander angeordnet</li>
+ </ul>
+ </section>
+ <section>
+ <p>none</p>
+ <img data-src="/assets/images/css-display-none.svg">
+ <ul>
+ <li>unsichtbar</li>
+ <li>Platz wird nicht länger beansprucht, so als wenn das Element nicht im DOM wäre</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Das <code>position</code>-Attribut</h3>
+ </section>
+ <section>
+ <p>static</p>
+ <img data-src="/assets/images/css-position-static.svg">
+ <ul>
+ <li>Standard</li>
+ <li>Element wird am Ort der Verankerung im HTML dargestellt</li>
+ </ul>
+ </section>
+ <section>
+ <p>relative</p>
+ <img data-src="/assets/images/css-position-relative.svg">
+ <ul>
+ <li>Verschiebung zur eigentlichen <code>static</code>-Position, z.B. mittels <code>left: 20px</code></li>
+ </ul>
+ </section>
+ <section>
+ <p>absolut</p>
+ <img data-src="/assets/images/css-position-absolute.svg">
+ <ul>
+ <li>relative Verschiebung zum nächsten nicht-<code>static</code>-Parent (sonst <code>window</code>)</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Aufgabe</h3>
+ <p>Implementiere folgendes Beispiel-Menü</p>
+ <iframe data-src="/assets/html/css-menu.html"></iframe>
+ </section>
+ <section>
+ <h3>Lösung</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ .menu-item {
+ display: inline-block;
+
+ position: relative;
+ }
+
+ .menu-item .children {
+ display: none;
+
+ position: absolute;
+ }
+
+ .menu-item:hover .children {
+ display: block;
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <pre>
+ <code class="html" data-trim data-line-numbers>
+ <script type="text/template">
+ <div class="menu">
+ <div class="menu-item">Eins</div>
+ <div class="menu-item">
+ Hover Me!
+ <div class="children">
+ <div>Item 1</div>
+ <div>Item 2</div>
+ </div>
+ </div>
+ <div class="menu-item">Drei</div>
+ </div>
+ </script>
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Viewport</h3>
+ <pre>
+ <code class="html" data-trim data-line-numbers>
+ <!DOCTYPE html>
+ <html>
+ <head>
+ <meta charset="utf-8"></meta>
+ <meta
+ name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"
+ >
+ </head>
+ <body>
+ ...
+ </body>
+ </html>
+ </code>
+ </pre>
+ <p>Ein Muss für alle responsiven Seiten</p>
+ </section>
+ <section>
+ <pre>
+ <code class="bash" data-trim data-line-numbers="">
+ npm install -g http-server
+ cd pfad/zum/projekt
+ http-server --port 8080
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Einheiten</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers="">
+ div {
+ width: 1px; /* Pixel */
+ width: 1pt; /* Points */
+ width: 1em; /* Breite des "M" in der Schriftgröße des Elements */
+ width: 1rem; /* Breite des "M" in der Schriftgröße des HTML-Elements */
+ width: 1vw; /* Prozent der View Width */
+ width: 1%; /* Prozent des Elternelements */
+
+ width: 5fr; /* Fraction (nur im CSS Grid verfügbar) */
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Aufgabe</h3>
+ <p>Größeneinheiten in einer HTML-Datei ausprobieren</p>
+ </section>
+ <section>
+ <h3>CSS Flexbox</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers="">
+ .container {
+ display: flex; /* soll ein flexibler Container sein */
+ display: inline-flex;
+
+ flex-direction: column; /* Kinder spaltenweise anordnen */
+ flex-direction: row; /* Kinder zeilenweise anordnen */
+
+ align-items: center;
+ justify-content: center;
+
+ gap: 20px; /* Abstände zwischen den Achsen */
+ }
+
+ .child {
+ flex-grow: 1; /* Anteiliger Platz, wenn mehr als nötig da ist */
+ flex-shrink: 1; /* Anteiliger Platz, wenn weniger als nötig da ist */
+ flex-basis: 20px; /* Grundlage zur Berechnung der finalen Größe */
+ order: 1; /* Erlaubt die Darstellung in anderer Reihenfolge als durch das HTML vorgegeben */
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <img data-src="/assets/images/css-flexbox-axes.drawio.svg">
+ </section>
+ <section>
+ <h3>Aufgabe</h3>
+ <p>Mit CSS Flexbox rumspielen</p>
+ </section>
+ <section>
+ <h3>CSS Grid</h3>
+ </section>
+ <section>
+ <h3>Terminologie</h3>
+ <img data-src="/assets/images/css-grid-terminology.drawio.svg">
+ </section>
+ <section>
+ <pre>
+ <code class="css" data-trim data-line-numbers="">
+ .grid {
+ display: grid; /* inline-grid; */
+
+ grid-template-columns: 1fr 1fr 1fr;
+ grid-template-rows: 1fr 1fr;
+
+ gap: 5px 10px;
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <pre>
+ <code class="html" data-trim data-line-numbers="">
+ <div class="grid">
+ <span>A</span>
+ <span>B</span>
+ <span>C</span>
+ <span>D</span>
+ <span>E</span>
+ <span>F</span>
+ </div>
+ </code>
+ </pre>
+ </section>
+ <section>
+ <iframe data-src="/assets/html/css-grid-example-1.html"></iframe>
+ </section>
+ <section>
+ <pre>
+ <code class="css" data-trim data-line-numbers="">
+ .grid {
+ grid-template-columns: [left] 1fr [column1] 1fr [column2] 1fr [right];
+ grid-template-rows: [top] 1fr [row1] 1fr [bottom];
+ }
+
+ .a {
+ grid-column: 2 / span 2;
+ grid-row: 1;
+ }
+
+ .b {
+ grid-column: left / column2;
+ grid-row: 2;
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <pre>
+ <code class="html" data-trim data-line-numbers="">
+ <div class="grid">
+ <span class="a">A</span>
+ <span class="b">B</span>
+ </div>
+ </code>
+ </pre>
+ </section>
+ <section>
+ <iframe data-src="/assets/html/css-grid-example-2.html"></iframe>
+ </section>
+ <section>
+ <pre>
+ <code class="css" data-trim data-line-numbers="">
+ .grid {
+ grid-template-areas:
+ "header header header"
+ "content content content";
+ }
+
+ .a {
+ grid-area: header;
+ }
+
+ .b {
+ grid-area: 2 / 1 / 2 / 3; /* start-row / start-column / end-row / end-column */
+ /* alternativ auch Namen der Lines möglich */
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <iframe data-src="/assets/html/css-grid-example-3.html"></iframe>
+ </section>
+ <section>
+ <h3>Aufgabe</h3>
+ <p>Implementiere folgendes Design:</p>
+ <iframe data-src="/assets/html/css-grid-excercise.html"></iframe>
+ </section>
+ <section>
+ <h3>Lösung</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers="">
+ .grid {
+ display: grid;
+
+ grid-template-rows: 1fr 5fr 1fr;
+
+ gap: 2px;
+
+ grid-template-areas:
+ "navigation header header header"
+ "navigation content content content"
+ "footer footer footer footer"
+ }
+
+ .navigation {
+ grid-area: navigation;
+ }
+
+ .header {
+ grid-area: header;
+ }
+
+ .content {
+ grid-area: content;
+ }
+
+ .footer {
+ grid-area: footer;
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <pre>
+ <code class="html" data-trim data-line-numbers="">
+ <div class="grid">
+ <div class="area navigation">Navigation</div>
+ <div class="area header">Header</div>
+ <div class="area content">Content</div>
+ <div class="area footer">Footer</div>
+ </div>
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h4>Platzierug des Inhalts</h4>
+ <pre>
+ <code class="css" data-trim data-line-numbers="">
+ .grid {
+ align-items: center;
+ justify-items: center;
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <iframe data-src="/assets/html/css-grid-example-4.html"></iframe>
+ </section>
+ <section>
+ <h3>Media Queries</h3>
+ <ul>
+ <li>"Medienabfragen"</li>
+ <li>Styles auf Basis von Eigenschaften des Ausgabemediums</li>
+ <li>Große Bildschirme, kleine Bildschirme, Printmedien...</li>
+ <li>Hinweis: Sollten immer als letztes (unten) in einem Stylesheet sein</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Syntax</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ @media screen and (min-width: 640px) and (max-width: 1024px) {
+ .navigation {
+ display: none;
+ }
+ }
+ </code>
+ </pre>
+ <p>Bedeutung: Wenn die Seite auf einem Display angezeigt wird, welches zwischen 640px und 1024px in der Breite anzeigen kann, dann blende die Navigation aus</p>
+ </section>
+ <section>
+ <h3>Werte für die Ausgabemedien (optional, Standard ist "all")</h3>
+ <ul>
+ <li>all</li>
+ <li>screen</li>
+ <li>print</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Werte für die Eigenschaften mit Typ und Erklärung (kleiner Auszug)</h3>
+ <ul>
+ <li>width (Number, Breite)</li>
+ <li>height (Number, Höhe)</li>
+ <li>orientation (portrait | landscape, Quer- oder Hochformat)</li>
+ <li>hover (none | hover, Hat Zeiger zum Hovern)</li>
+ <li>forced-colors (none | active, erzwungene Farbpalette z.B. bei Sehbehinderung)</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Aufgabe</h3>
+ <p>Entwerfe eine kleine Seite mit @media und zeige ein beliebiges Element ab einer bestimmten Höhe oder Breite an (die Größe des Displays kann dynamisch mit den Entwicklertools im Gerätesimulator geändert werden)</p>
+ </section>
+ <section>
+ <h3>Aufgabe</h3>
+ <p>Passe die Vorlage "media-queries-responsive-layout.html" mit @media-Queries so an, dass das Menü links ab einer maximalen Breite von 480 Pixel und kleiner nach links oben in die Ecke minimiert wird und nur per Hover wieder 50% Breite und 100% Höhe bekommt</p>
+ </section>
+ <section>
+ <img data-src="/assets/images/media-queries-excercise.png">
+ </section>
+ <section>
+ <h3>Lösung</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ @media screen and (max-width: 480px) {
+ .menu {
+ grid-area: unset;
+
+ position: absolute;
+ }
+
+ .menu:hover {
+ height: 100%;
+ width: 50%;
+ }
+
+ .grid {
+ grid-template-columns: 0fr 5fr;
+ }
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Transform</h3>
+ <ul>
+ <li>rein optisch, d.h. "physische" Größe bleibt erhalten</li>
+ <li>eine Art "Shader" auf Grafikebene</li>
+ <li>Effekte wie Drehung, Vergrößerung, Verschiebung usw.</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Syntax</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ .foo {
+ transform: translateX(20px) translateY(20px);
+ transform-origin: left;
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Mögliche Effekte</h3>
+ <ul>
+ <li>translate</li>
+ <li>rotate</li>
+ <li>scale</li>
+ <li>scew</li>
+ </ul>
+ <p>Die meisten besitzen zusätzlich spezifischere X-, Y- oder 3D-Versionen</p>
+ </section>
+ <section>
+ <h3>Aufgabe</h3>
+ <p>Probiere die genannten Transform-Effekte in einer beliebigen Seite aus</p>
+ </section>
+ <section>
+ <h3>Transition</h3>
+ <ul>
+ <li>Elemente können "weich" verändert werden</li>
+ <li>Mögliche Attribute, deren Änderungen animiert werden können sind z.B. <code>width</code>, <code>height</code>, <code>transform</code>, <code>color</code> und viele weitere</li>
+ <li>Das Attribut <code>display</code> lässt sich jedoch nicht animieren</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Syntax</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ .foo {
+ width: 100%;
+ background-color: red;
+ /* transition: [Attribut] [Dauer] [Zeitfunktion] */
+ transition: width 1s ease-out;
+ }
+
+ .foo:hover {
+ width: 50%;
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Beispiel</h3>
+ <iframe data-src="/assets/html/css-transition.html"></iframe>
+ </section>
+ <section>
+ <h3>Animation</h3>
+ <ul>
+ <li>Es können zusätzlich eigene Animationen entworfen werden</li>
+ <li>Definition per <code>Keyframes</code></li>
+ </ul>
+ </section>
+ <section>
+ <h3>Syntax</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ .foo {
+ animation-duration: 3s;
+ animation-name: slidein;
+ }
+
+ @keyframes slidein {
+ from {
+ margin-left: 100%;
+ width: 300%;
+ }
+
+ to {
+ margin-left: 0%;
+ width: 100%;
+ }
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Alternative Syntax</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ .foo {
+ /* ... */
+ }
+
+ @keyframes slidein {
+ 1% {
+ margin-left: 100%;
+ }
+
+ 100% {
+ margin-left: 0%;
+ }
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Beispiel</h3>
+ <iframe data-src="/assets/html/css-animation.html"></iframe>
+ </section>
+ <section>
+ <h3>3D Transform</h3>
+ <ul>
+ <li>Neben den gewohnten X- und Y-Achsen (Breite und Höhe) gibt es auch noch die Z-Achse</li>
+ <li>Bewegung entlang der Sichtachse, d.h. zum bzw. vom Betrachter weg</li>
+ <li>Perspektivische Effekte möglich</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Beispiel</h3>
+ <iframe data-src="/assets/html/css-transform-3d.html"></iframe>
+ </section>
+ <section>
+ <h3>Bedingungen / Optionen</h3>
+ <pre>
+ <code class="css" data-trim data-line-numbers>
+ .container {
+ perspective: 1000px; /* "Entfernung" des Betrachters */
+
+ transform-style: preserve-3d; /* oder "flat" */
+ }
+
+ .element {
+ backface-visibility: hidden; /* oder "visible" */
+ }
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Beispiel</h3>
+ <iframe data-src="/assets/html/css-transform-3d-cube.html"></iframe>
+ </section>
+ <section>
+ <h3>Aufgabe</h3>
+ <p>Implementiere einen drehenden Würfel (Vorlage "templates/008-css/css-3d-cube.html")</p>
+ </section>
+ </section>
+ <section>
+ <section>
+ <h2>Web Components</h2>
+ </section>
+ <section>
+ <p>Was sind Web Components?</p>
+ <img data-src="/assets/images/web-components.svg">
+ </section>
+ <section>
+ <p>Vorteile</p>
+ <ul>
+ <li>Entwicklung eigener HTML-Elemente, welche sich nahtlos neben nativen Elementen nutzen lassen</li>
+ <li>Hohe Wiederverwendbarkeit in mehreren Projekten</li>
+ <li>Keine Libraries oder Frameworks notwendig, um eigene Elemente zu entwickeln</li>
+ <li>Kapselung des Scopes sowohl von JS (Variablen...) als auch CSS (id, class...)</li>
+ </ul>
+ </section>
+ <section>
+ <h3>Ansätze in der Vergangenheit und Alternativen heute</h3>
+ </section>
+ <section>
+ <h4>jQuery</h4>
+ <a href="https://api.jqueryui.com/accordion/#entry-examples" target="_blank">https://api.jqueryui.com/accordion/#entry-examples</a>
+ </section>
+ <section>
+ <pre>
+ <code class="html" data-trim data-line-numbers>
+ <script type="text/template">
+ <div id="accordion" class="ui-accordion ui-widget ui-helper-reset" role="tablist">
+ <h3 class="ui-accordion-header ui-corner-top ui-state-default ui-accordion-icons ui-accordion-header-active ui-state-active" role="tab" id="ui-id-1" aria-controls="ui-id-2" aria-selected="true" aria-expanded="true" tabindex="0">
+ <span class="ui-accordion-header-icon ui-icon ui-icon-triangle-1-s"></span>Section 1</h3>
+ <div class="ui-accordion-content ui-corner-bottom ui-helper-reset ui-widget-content ui-accordion-content-active" id="ui-id-2" aria-labelledby="ui-id-1" role="tabpanel" aria-hidden="false" style="display: block; height: 166.8px;">
+ <p>Mauris mauris ante, blandit et, ultrices a, suscipit eget.
+ Integer ut neque. Vivamus nisi metus, molestie vel, gravida in,
+ condimentum sit amet, nunc. Nam a nibh. Donec suscipit eros.
+ Nam mi. Proin viverra leo ut odio.</p>
+ </div>
+ <h3 class="ui-accordion-header ui-corner-top ui-state-default ui-accordion-icons ui-accordion-header-collapsed ui-corner-all" role="tab" id="ui-id-3" aria-controls="ui-id-4" aria-selected="false" aria-expanded="false" tabindex="-1"><span class="ui-accordion-header-icon ui-icon ui-icon-triangle-1-e"></span>Section 2</h3>
+ <div class="ui-accordion-content ui-corner-bottom ui-helper-reset ui-widget-content" id="ui-id-4" aria-labelledby="ui-id-3" role="tabpanel" aria-hidden="true" style="display: none; height: 166.8px;">
+ <p>Sed non urna. Phasellus eu ligula. Vestibulum sit amet purus.
+ Vivamus hendrerit, dolor aliquet laoreet, mauris turpis velit,
+ faucibus interdum tellus libero ac justo.</p>
+ </div>
+ <h3 class="ui-accordion-header ui-corner-top ui-state-default ui-accordion-icons ui-accordion-header-collapsed ui-corner-all" role="tab" id="ui-id-5" aria-controls="ui-id-6" aria-selected="false" aria-expanded="false" tabindex="-1"><span class="ui-accordion-header-icon ui-icon ui-icon-triangle-1-e"></span>Section 3</h3>
+ <div class="ui-accordion-content ui-corner-bottom ui-helper-reset ui-widget-content" id="ui-id-6" aria-labelledby="ui-id-5" role="tabpanel" aria-hidden="true" style="display: none; height: 166.8px;">
+ <p>Nam enim risus, molestie et, porta ac, aliquam ac, risus.
+ Quisque lobortis.Phasellus pellentesque purus in massa.</p>
+ <ul>
+ <li>List item one</li>
+ <li>List item two</li>
+ <li>List item three</li>
+ </ul>
+ </div>
+ </div>
+ </script>
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h4>angular</h4>
+ <img data-src="/assets/images/web-components-angular.png">
+ </section>
+ <section>
+ <pre>
+ <code class="html" data-trim data-line-numbers>
+ <script type="text/template">
+ <app-root _nghost-ng-c3715250071="" ng-version="17.0.0"><app-top-bar _ngcontent-ng-c3715250071="" _nghost-ng-c3918259376=""><a _ngcontent-ng-c3918259376="" routerlink="/" ng-reflect-router-link="/" href="/"><h1 _ngcontent-ng-c3918259376="">My Store</h1></a><a _ngcontent-ng-c3918259376="" routerlink="/cart" class="button fancy-button" ng-reflect-router-link="/cart" href="/cart"><em _ngcontent-ng-c3918259376="" class="material-icons">shopping_cart</em>Checkout
+ </a></app-top-bar><div _ngcontent-ng-c3715250071="" class="container"><router-outlet _ngcontent-ng-c3715250071=""></router-outlet><app-product-list _nghost-ng-c2837874410=""><h2 _ngcontent-ng-c2837874410="">Products</h2><div _ngcontent-ng-c2837874410=""><h3 _ngcontent-ng-c2837874410=""><a _ngcontent-ng-c2837874410="" title="Phone XL details" ng-reflect-router-link="/products,1" href="/products/1"> Phone XL </a></h3><p _ngcontent-ng-c2837874410=""> Description: A large phone with one of the best screens </p><!--bindings={
+ "ng-reflect-ng-if": "A large phone with one of the "
+ }--><button _ngcontent-ng-c2837874410="" type="button"> Share </button><app-product-alerts _ngcontent-ng-c2837874410="" _nghost-ng-c869072018="" ng-reflect-product="[object Object]"><p _ngcontent-ng-c869072018=""><button _ngcontent-ng-c869072018="" type="button">Notify Me</button></p><!--bindings={
+ "ng-reflect-ng-if": "true"
+ }--></app-product-alerts></div><div _ngcontent-ng-c2837874410=""><h3 _ngcontent-ng-c2837874410=""><a _ngcontent-ng-c2837874410="" title="Phone Mini details" ng-reflect-router-link="/products,2" href="/products/2"> Phone Mini </a></h3><p _ngcontent-ng-c2837874410=""> Description: A great phone with one of the best cameras </p><!--bindings={
+ "ng-reflect-ng-if": "A great phone with one of the "
+ }--><button _ngcontent-ng-c2837874410="" type="button"> Share </button><app-product-alerts _ngcontent-ng-c2837874410="" _nghost-ng-c869072018="" ng-reflect-product="[object Object]"><!--bindings={
+ "ng-reflect-ng-if": "false"
+ }--></app-product-alerts></div><div _ngcontent-ng-c2837874410=""><h3 _ngcontent-ng-c2837874410=""><a _ngcontent-ng-c2837874410="" title="Phone Standard details" ng-reflect-router-link="/products,3" href="/products/3"> Phone Standard </a></h3><!--bindings={
+ "ng-reflect-ng-if": ""
+ }--><button _ngcontent-ng-c2837874410="" type="button"> Share </button><app-product-alerts _ngcontent-ng-c2837874410="" _nghost-ng-c869072018="" ng-reflect-product="[object Object]"><!--bindings={
+ "ng-reflect-ng-if": "false"
+ }--></app-product-alerts></div><!--bindings={
+ "ng-reflect-ng-for-of": "[object Object],[object Object"
+ }--></app-product-list><!--container--></div>
+ </app-root>
+ </script>
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Aufbau einer Web Component</h3>
+ <pre>
+ <code class="html" data-trim data-line-numbers>
+ <script type="text/template">
+ <!--
+ Hinweis: Der Name bzw. der Selektor muss immer einen Bindestrich enthalten,
+ damit keine Namens-Kollisionen mit nativen HTML-Tags entstehen können
+ -->
+ <hello-world></hello-world>
+ </script>
+ </code>
+ </pre>
+ </section>
+ <section>
+ <pre>
+ <code class="js" data-trim data-line-numbers="1-15|17">
+ <script type="text/template">
+ class HelloWorldComponent extends HTMLElement {
+ connectedCallback() {
+ const shadowRoot = this.attachShadow({mode: "open"});
+
+ shadowRoot.innerHTML = `
+ <style>
+ div {
+ background-color: coral;
+ color: white;
+ }
+ </style>
+ <div>Hello World!</div>
+ `;
+ }
+ }
+
+ window.customElements.define("hello-world", HelloWorldComponent);
+ </script>
+ </code>
+ </pre>
+ </section>
+ <section>
+ <iframe data-src="/assets/html/hello-world.html"></iframe>
+ </section>
+ <section>
+ <h3>Auf Attribute reagieren</h3>
+ <pre>
+ <code class="js" data-trim data-line-numbers="2|8-10">
+ <script type="text/template">
+ class HelloWorldComponent extends HTMLElement {
+ static observedAttributes = ["my-attribute"];
+
+ connectedCallback() {
+ // ...
+ }
+
+ attributeChangedCallback(name, oldValue, newValue) {
+ console.log(`${name}: changed from ${oldValue} to ${newValue}`);
+ }
+ }
+ </script>
+ </code>
+ </pre>
+ </section>
+ <section>
+ <h3>Aufgabe</h3>
+ <p>Lasse die eigene Komponente "hello-sayer" auf eine Änderung des "name"-Attributs reagieren, indem der dort eingetragene Name in der Komponente angezeigt wird (Beispiel: name="Joe" => Hello Joe!)</p>
+ <p>(/examples/templates/web-components/hello-sayer.html)</p>
+ </section>
</section>
</div>
</div>
@@ -2620,7 +3621,7 @@
hash: true,
slideNumber: "c/t",
transition: "fade",
-
+
// Learn about plugins: https://revealjs.com/plugins/
plugins: [ RevealMarkdown, RevealHighlight, RevealNotes ]
});
--
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