185 lines
7 KiB
JavaScript
Executable file
185 lines
7 KiB
JavaScript
Executable file
import { r as registerInstance, h, H as Host, a as getElement } from './index-f392fe63.js';
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import { i as isStr, g as getUrl, b as getName } from './utils-b4648582.js';
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const validateContent = (svgContent) => {
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const div = document.createElement('div');
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div.innerHTML = svgContent;
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// setup this way to ensure it works on our buddy IE
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for (let i = div.childNodes.length - 1; i >= 0; i--) {
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if (div.childNodes[i].nodeName.toLowerCase() !== 'svg') {
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div.removeChild(div.childNodes[i]);
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}
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}
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// must only have 1 root element
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const svgElm = div.firstElementChild;
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if (svgElm && svgElm.nodeName.toLowerCase() === 'svg') {
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const svgClass = svgElm.getAttribute('class') || '';
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svgElm.setAttribute('class', (svgClass + ' s-ion-icon').trim());
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// root element must be an svg
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// lets double check we've got valid elements
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// do not allow scripts
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if (isValid(svgElm)) {
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return div.innerHTML;
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}
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}
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return '';
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};
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const isValid = (elm) => {
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if (elm.nodeType === 1) {
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if (elm.nodeName.toLowerCase() === 'script') {
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return false;
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}
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for (let i = 0; i < elm.attributes.length; i++) {
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const val = elm.attributes[i].value;
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if (isStr(val) && val.toLowerCase().indexOf('on') === 0) {
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return false;
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}
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}
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for (let i = 0; i < elm.childNodes.length; i++) {
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if (!isValid(elm.childNodes[i])) {
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return false;
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}
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}
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}
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return true;
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};
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const ioniconContent = new Map();
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const requests = new Map();
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const getSvgContent = (url, sanitize) => {
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// see if we already have a request for this url
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let req = requests.get(url);
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if (!req) {
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if (typeof fetch !== 'undefined' && typeof document !== 'undefined') {
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// we don't already have a request
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req = fetch(url).then((rsp) => {
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if (rsp.ok) {
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return rsp.text().then((svgContent) => {
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if (svgContent && sanitize !== false) {
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svgContent = validateContent(svgContent);
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}
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ioniconContent.set(url, svgContent || '');
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});
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}
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ioniconContent.set(url, '');
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});
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// cache for the same requests
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requests.set(url, req);
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}
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else {
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// set to empty for ssr scenarios and resolve promise
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ioniconContent.set(url, '');
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return Promise.resolve();
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}
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}
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return req;
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};
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const iconCss = ":host{display:inline-block;width:1em;height:1em;contain:strict;fill:currentColor;-webkit-box-sizing:content-box !important;box-sizing:content-box !important}:host .ionicon{stroke:currentColor}.ionicon-fill-none{fill:none}.ionicon-stroke-width{stroke-width:32px;stroke-width:var(--ionicon-stroke-width, 32px)}.icon-inner,.ionicon,svg{display:block;height:100%;width:100%}:host(.flip-rtl) .icon-inner{-webkit-transform:scaleX(-1);transform:scaleX(-1)}:host(.icon-small){font-size:18px !important}:host(.icon-large){font-size:32px !important}:host(.ion-color){color:var(--ion-color-base) !important}:host(.ion-color-primary){--ion-color-base:var(--ion-color-primary, #3880ff)}:host(.ion-color-secondary){--ion-color-base:var(--ion-color-secondary, #0cd1e8)}:host(.ion-color-tertiary){--ion-color-base:var(--ion-color-tertiary, #f4a942)}:host(.ion-color-success){--ion-color-base:var(--ion-color-success, #10dc60)}:host(.ion-color-warning){--ion-color-base:var(--ion-color-warning, #ffce00)}:host(.ion-color-danger){--ion-color-base:var(--ion-color-danger, #f14141)}:host(.ion-color-light){--ion-color-base:var(--ion-color-light, #f4f5f8)}:host(.ion-color-medium){--ion-color-base:var(--ion-color-medium, #989aa2)}:host(.ion-color-dark){--ion-color-base:var(--ion-color-dark, #222428)}";
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let Icon = class {
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constructor(hostRef) {
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registerInstance(this, hostRef);
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this.iconName = null;
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this.isVisible = false;
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/**
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* The mode determines which platform styles to use.
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*/
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this.mode = getIonMode();
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/**
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* If enabled, ion-icon will be loaded lazily when it's visible in the viewport.
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* Default, `false`.
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*/
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this.lazy = false;
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/**
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* When set to `false`, SVG content that is HTTP fetched will not be checked
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* if the response SVG content has any `<script>` elements, or any attributes
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* that start with `on`, such as `onclick`.
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* @default true
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*/
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this.sanitize = true;
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}
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connectedCallback() {
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// purposely do not return the promise here because loading
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// the svg file should not hold up loading the app
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// only load the svg if it's visible
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this.waitUntilVisible(this.el, '50px', () => {
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this.isVisible = true;
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this.loadIcon();
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});
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}
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disconnectedCallback() {
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if (this.io) {
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this.io.disconnect();
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this.io = undefined;
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}
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}
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waitUntilVisible(el, rootMargin, cb) {
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if (this.lazy && typeof window !== 'undefined' && window.IntersectionObserver) {
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const io = (this.io = new window.IntersectionObserver((data) => {
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if (data[0].isIntersecting) {
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io.disconnect();
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this.io = undefined;
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cb();
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}
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}, { rootMargin }));
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io.observe(el);
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}
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else {
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// browser doesn't support IntersectionObserver
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// so just fallback to always show it
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cb();
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}
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}
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loadIcon() {
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if (this.isVisible) {
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const url = getUrl(this);
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if (url) {
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if (ioniconContent.has(url)) {
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// sync if it's already loaded
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this.svgContent = ioniconContent.get(url);
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}
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else {
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// async if it hasn't been loaded
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getSvgContent(url, this.sanitize).then(() => (this.svgContent = ioniconContent.get(url)));
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}
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}
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}
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const label = this.iconName = getName(this.name, this.icon, this.mode, this.ios, this.md);
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if (!this.ariaLabel && this.ariaHidden !== 'true') {
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// user did not provide a label
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// come up with the label based on the icon name
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if (label) {
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this.ariaLabel = label.replace(/\-/g, ' ');
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}
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}
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}
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render() {
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const { iconName } = this;
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const mode = this.mode || 'md';
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const flipRtl = this.flipRtl ||
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(iconName &&
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(iconName.indexOf('arrow') > -1 || iconName.indexOf('chevron') > -1) &&
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this.flipRtl !== false);
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return (h(Host, { role: "img", class: Object.assign(Object.assign({ [mode]: true }, createColorClasses(this.color)), { [`icon-${this.size}`]: !!this.size, 'flip-rtl': !!flipRtl && this.el.ownerDocument.dir === 'rtl' }) }, this.svgContent ? (h("div", { class: "icon-inner", innerHTML: this.svgContent })) : (h("div", { class: "icon-inner" }))));
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}
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static get assetsDirs() { return ["svg"]; }
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get el() { return getElement(this); }
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static get watchers() { return {
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"name": ["loadIcon"],
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"src": ["loadIcon"],
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"icon": ["loadIcon"]
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}; }
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};
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const getIonMode = () => (typeof document !== 'undefined' && document.documentElement.getAttribute('mode')) || 'md';
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const createColorClasses = (color) => {
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return color
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? {
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'ion-color': true,
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[`ion-color-${color}`]: true,
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}
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: null;
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};
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Icon.style = iconCss;
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export { Icon as ion_icon };
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