feat(ui5-icon): display custom SVG, defined as JSX template

[ilhan007]

In case you need to use a fully custom SVG, that can be used ui5-icon, ui5-button or any component that offers API to display an icon via icon name, you can provide a custom JSX template, rendering the custom SVG and register it under a custom name.

Previously, one had to provide Handlebars template (compiled to lit) - this is deprecated, but still works for compatibility. However, it's strongly recommended to use JSX templates, instead of Handlebars as at some point this will be removed.

How it works

1. Create JSX template

First, create a JSX template for the icon you need:

// MyPensilSVGTemplate.tsx
export default function MyPensilSVGTemplate() {
    return (
        <svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg">
            <g clip-path="url(#clip0_2221_23716)"><path d="M11.3333 1.99998C11.503 1.79933 11.7131 1.63601 11.9499 1.52043C12.1868 1.40485 12.4453 1.33953 12.709 1.32865C12.9727 1.31777 13.2358 1.36156 13.4815 1.45723C13.7272 1.55291 13.9502 1.69836 14.1361 1.88432C14.3221 2.07029 14.467 2.29268 14.5616 2.53734C14.6562 2.78199 14.6985 3.04353 14.6857 3.3053C14.6728 3.56706 14.6052 3.8233 14.4872 4.05769C14.3691 4.29207 14.2032 4.49947 13.9999 4.66664L4.99992 13.6666L1.33325 14.6666L2.33325 11L11.3333 1.99998Z" stroke-linecap="round" stroke-linejoin="round"/><path d="M10 3.33331L12.6667 5.99998" stroke-linecap="round" stroke-linejoin="round"/></g>
            <defs>
                <clipPath id="clip0_2221_23716"><rect width="16" height="16"/></clipPath>
            </defs>
        </svg>
    )
};

2. Register the Custom Icon

You can use the registerIcon to register the custom icon as follows:

import { registerIcon } from "@ui5/webcomponents-base/dist/asset-registries/Icons.js";
import myPensilSVGTemplate from "./MyPensilSVGTemplate.js";

// create the icon data for registration
const iconPensil = {
    customTemplate: myPensilSVGTemplate,
    collection: "custom",
    viewBox: "0 0 24 24", // optional
}

// register the icon
registerIcon("pensil", iconPensil);

3. Use the Custom Icon

Finally, the icon can be used anywhere.

<ui5-icon name="custom/pensil"></ui5-icon>
<ui5-button icon="custom/pensil"></ui5-button>
<ui5-avatar icon="custom/pensil" size="XS"></ui5-avatar>

[ui5-webcomponents-bot]

🎉 This PR is included in version v2.13.0 🎉

The release is available on v2.13.0

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