forked from mirrors/gecko-dev
eb9fd58f2b
This is still far from perfect given the limitations of the Storybook web components package, but I figured this was worth putting up since it's still an improvement over the current state of our args tables (I think). I'm mostly leaving the default generated `custom-elements-manifest.json` alone save for filtering some internal properties we don't want documented since they shouldn't really be accessed directly. If it seems too strange to just have the `aria-label` attr documented we could possibly remove `attributes` from the docs for now (this happens because it's the only attr where the name is different from the property name). Open to feedback/thoughts on if this is useful or too wonky for now given the weirdness around how Storybook creates naming collisions. Differential Revision: https://phabricator.services.mozilla.com/D162599
88 lines
2.6 KiB
JavaScript
88 lines
2.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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import { html } from "chrome://global/content/vendor/lit.all.mjs";
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import { MozLitElement } from "chrome://global/content/lit-utils.mjs";
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export const PLATFORM_LINUX = "linux";
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export const PLATFORM_MACOS = "macosx";
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export const PLATFORM_WINDOWS = "win";
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/**
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* A grouping of buttons. Primary button order will be set automatically based
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* on class="primary", type="submit" or autofocus attribute. Set slot="primary"
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* on a primary button that does not have primary styling to set its position.
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*
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* @tagname moz-button-group
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* @property {string} platform - The detected platform, set automatically.
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*/
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export default class MozButtonGroup extends MozLitElement {
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static queries = {
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defaultSlotEl: "slot:not([name])",
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primarySlotEl: "slot[name=primary]",
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};
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static properties = {
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platform: { state: true },
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};
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// Use a relative URL in storybook to get faster reloads on style changes.
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static stylesheetUrl = window.IS_STORYBOOK
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? "./moz-button-group/moz-button-group.css"
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: "chrome://global/content/elements/moz-button-group.css";
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constructor() {
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super();
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this.#detectPlatform();
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}
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#detectPlatform() {
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if (typeof AppConstants !== "undefined") {
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this.platform = AppConstants.platform;
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} else if (navigator.platform.includes("Linux")) {
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this.platform = PLATFORM_LINUX;
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} else if (navigator.platform.includes("Mac")) {
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this.platform = PLATFORM_MACOS;
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} else {
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this.platform = PLATFORM_WINDOWS;
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}
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}
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onSlotchange(e) {
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for (let child of this.defaultSlotEl.assignedNodes()) {
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if (!(child instanceof Element)) {
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// Text nodes won't support classList or getAttribute.
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continue;
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}
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// Bug 1791816: These should check moz-button instead of button.
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if (
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child.localName == "button" &&
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(child.classList.contains("primary") ||
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child.getAttribute("type") == "submit" ||
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child.hasAttribute("autofocus"))
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) {
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child.slot = "primary";
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}
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}
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}
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render() {
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let slots = [
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html`
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<slot @slotchange=${this.onSlotchange}></slot>
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`,
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html`
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<slot name="primary"></slot>
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`,
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];
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if (this.platform == PLATFORM_WINDOWS) {
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slots = [slots[1], slots[0]];
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}
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return html`
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<link rel="stylesheet" href=${this.constructor.stylesheetUrl} />
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${slots}
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`;
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}
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}
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customElements.define("moz-button-group", MozButtonGroup);
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