@bulmil/core
Version:
2,482 lines • 114 kB
JavaScript
/*!
* Bulmil - MIT License
*/
'use strict';
function _interopNamespace(e) {
if (e && e.__esModule) return e;
var n = Object.create(null);
if (e) {
Object.keys(e).forEach(function (k) {
if (k !== 'default') {
var d = Object.getOwnPropertyDescriptor(e, k);
Object.defineProperty(n, k, d.get ? d : {
enumerable: true,
get: function () {
return e[k];
}
});
}
});
}
n['default'] = e;
return Object.freeze(n);
}
const NAMESPACE = 'bulmil';
const BUILD = /* bulmil */ { allRenderFn: true, appendChildSlotFix: false, asyncLoading: true, asyncQueue: false, attachStyles: true, cloneNodeFix: false, cmpDidLoad: false, cmpDidRender: false, cmpDidUnload: false, cmpDidUpdate: false, cmpShouldUpdate: false, cmpWillLoad: false, cmpWillRender: false, cmpWillUpdate: false, connectedCallback: false, constructableCSS: true, cssAnnotations: true, devTools: false, disconnectedCallback: false, element: false, event: false, experimentalScopedSlotChanges: false, experimentalSlotFixes: false, formAssociated: false, hasRenderFn: true, hostListener: false, hostListenerTarget: false, hostListenerTargetBody: false, hostListenerTargetDocument: false, hostListenerTargetParent: false, hostListenerTargetWindow: false, hotModuleReplacement: false, hydrateClientSide: true, hydrateServerSide: false, hydratedAttribute: false, hydratedClass: true, initializeNextTick: false, invisiblePrehydration: true, isDebug: false, isDev: false, isTesting: false, lazyLoad: true, lifecycle: false, lifecycleDOMEvents: false, member: true, method: false, mode: false, observeAttribute: true, profile: false, prop: true, propBoolean: true, propMutable: true, propNumber: true, propString: true, reflect: true, scoped: false, scopedSlotTextContentFix: false, scriptDataOpts: false, shadowDelegatesFocus: false, shadowDom: false, slot: true, slotChildNodesFix: false, slotRelocation: true, state: false, style: true, svg: false, taskQueue: true, transformTagName: false, updatable: true, vdomAttribute: true, vdomClass: true, vdomFunctional: true, vdomKey: true, vdomListener: true, vdomPropOrAttr: true, vdomRef: false, vdomRender: true, vdomStyle: false, vdomText: true, vdomXlink: false, watchCallback: false };
/**
* Virtual DOM patching algorithm based on Snabbdom by
* Simon Friis Vindum (@paldepind)
* Licensed under the MIT License
* https://github.com/snabbdom/snabbdom/blob/master/LICENSE
*
* Modified for Stencil's renderer and slot projection
*/
let contentRef;
let hostTagName;
let useNativeShadowDom = false;
let checkSlotFallbackVisibility = false;
let checkSlotRelocate = false;
let isSvgMode = false;
let queuePending = false;
const createTime = (fnName, tagName = '') => {
{
return () => {
return;
};
}
};
const uniqueTime = (key, measureText) => {
{
return () => {
return;
};
}
};
const CONTENT_REF_ID = 'r';
const ORG_LOCATION_ID = 'o';
const SLOT_NODE_ID = 's';
const TEXT_NODE_ID = 't';
const HYDRATE_ID = 's-id';
const HYDRATED_STYLE_ID = 'sty-id';
const HYDRATE_CHILD_ID = 'c-id';
const HYDRATED_CSS = '{visibility:hidden}.hydrated{visibility:inherit}';
/**
* Constant for styles to be globally applied to `slot-fb` elements for pseudo-slot behavior.
*
* Two cascading rules must be used instead of a `:not()` selector due to Stencil browser
* support as of Stencil v4.
*/
const SLOT_FB_CSS = 'slot-fb{display:contents}slot-fb[hidden]{display:none}';
/**
* Default style mode id
*/
/**
* Reusable empty obj/array
* Don't add values to these!!
*/
const EMPTY_OBJ = {};
/**
* Check whether a value is a 'complex type', defined here as an object or a
* function.
*
* @param o the value to check
* @returns whether it's a complex type or not
*/
const isComplexType = (o) => {
// https://jsperf.com/typeof-fn-object/5
o = typeof o;
return o === 'object' || o === 'function';
};
/**
* Helper method for querying a `meta` tag that contains a nonce value
* out of a DOM's head.
*
* @param doc The DOM containing the `head` to query against
* @returns The content of the meta tag representing the nonce value, or `undefined` if no tag
* exists or the tag has no content.
*/
function queryNonceMetaTagContent(doc) {
var _a, _b, _c;
return (_c = (_b = (_a = doc.head) === null || _a === void 0 ? void 0 : _a.querySelector('meta[name="csp-nonce"]')) === null || _b === void 0 ? void 0 : _b.getAttribute('content')) !== null && _c !== void 0 ? _c : undefined;
}
/**
* Production h() function based on Preact by
* Jason Miller (@developit)
* Licensed under the MIT License
* https://github.com/developit/preact/blob/master/LICENSE
*
* Modified for Stencil's compiler and vdom
*/
// export function h(nodeName: string | d.FunctionalComponent, vnodeData: d.PropsType, child?: d.ChildType): d.VNode;
// export function h(nodeName: string | d.FunctionalComponent, vnodeData: d.PropsType, ...children: d.ChildType[]): d.VNode;
const h = (nodeName, vnodeData, ...children) => {
let child = null;
let key = null;
let slotName = null;
let simple = false;
let lastSimple = false;
const vNodeChildren = [];
const walk = (c) => {
for (let i = 0; i < c.length; i++) {
child = c[i];
if (Array.isArray(child)) {
walk(child);
}
else if (child != null && typeof child !== 'boolean') {
if ((simple = typeof nodeName !== 'function' && !isComplexType(child))) {
child = String(child);
}
if (simple && lastSimple) {
// If the previous child was simple (string), we merge both
vNodeChildren[vNodeChildren.length - 1].$text$ += child;
}
else {
// Append a new vNode, if it's text, we create a text vNode
vNodeChildren.push(simple ? newVNode(null, child) : child);
}
lastSimple = simple;
}
}
};
walk(children);
if (vnodeData) {
if (vnodeData.key) {
key = vnodeData.key;
}
if (vnodeData.name) {
slotName = vnodeData.name;
}
// normalize class / className attributes
{
const classData = vnodeData.className || vnodeData.class;
if (classData) {
vnodeData.class =
typeof classData !== 'object'
? classData
: Object.keys(classData)
.filter((k) => classData[k])
.join(' ');
}
}
}
if (typeof nodeName === 'function') {
// nodeName is a functional component
return nodeName(vnodeData === null ? {} : vnodeData, vNodeChildren, vdomFnUtils);
}
const vnode = newVNode(nodeName, null);
vnode.$attrs$ = vnodeData;
if (vNodeChildren.length > 0) {
vnode.$children$ = vNodeChildren;
}
{
vnode.$key$ = key;
}
{
vnode.$name$ = slotName;
}
return vnode;
};
/**
* A utility function for creating a virtual DOM node from a tag and some
* possible text content.
*
* @param tag the tag for this element
* @param text possible text content for the node
* @returns a newly-minted virtual DOM node
*/
const newVNode = (tag, text) => {
const vnode = {
$flags$: 0,
$tag$: tag,
$text$: text,
$elm$: null,
$children$: null,
};
{
vnode.$attrs$ = null;
}
{
vnode.$key$ = null;
}
{
vnode.$name$ = null;
}
return vnode;
};
const Host = {};
/**
* Check whether a given node is a Host node or not
*
* @param node the virtual DOM node to check
* @returns whether it's a Host node or not
*/
const isHost = (node) => node && node.$tag$ === Host;
/**
* Implementation of {@link d.FunctionalUtilities} for Stencil's VDom.
*
* Note that these functions convert from {@link d.VNode} to
* {@link d.ChildNode} to give functional component developers a friendly
* interface.
*/
const vdomFnUtils = {
forEach: (children, cb) => children.map(convertToPublic).forEach(cb),
map: (children, cb) => children.map(convertToPublic).map(cb).map(convertToPrivate),
};
/**
* Convert a {@link d.VNode} to a {@link d.ChildNode} in order to present a
* friendlier public interface (hence, 'convertToPublic').
*
* @param node the virtual DOM node to convert
* @returns a converted child node
*/
const convertToPublic = (node) => ({
vattrs: node.$attrs$,
vchildren: node.$children$,
vkey: node.$key$,
vname: node.$name$,
vtag: node.$tag$,
vtext: node.$text$,
});
/**
* Convert a {@link d.ChildNode} back to an equivalent {@link d.VNode} in
* order to use the resulting object in the virtual DOM. The initial object was
* likely created as part of presenting a public API, so converting it back
* involved making it 'private' again (hence, `convertToPrivate`).
*
* @param node the child node to convert
* @returns a converted virtual DOM node
*/
const convertToPrivate = (node) => {
if (typeof node.vtag === 'function') {
const vnodeData = Object.assign({}, node.vattrs);
if (node.vkey) {
vnodeData.key = node.vkey;
}
if (node.vname) {
vnodeData.name = node.vname;
}
return h(node.vtag, vnodeData, ...(node.vchildren || []));
}
const vnode = newVNode(node.vtag, node.vtext);
vnode.$attrs$ = node.vattrs;
vnode.$children$ = node.vchildren;
vnode.$key$ = node.vkey;
vnode.$name$ = node.vname;
return vnode;
};
/**
* Entrypoint of the client-side hydration process. Facilitates calls to hydrate the
* document and all its nodes.
*
* This process will also reconstruct the shadow root and slot DOM nodes for components using shadow DOM.
*
* @param hostElm The element to hydrate.
* @param tagName The element's tag name.
* @param hostId The host ID assigned to the element by the server.
* @param hostRef The host reference for the element.
*/
const initializeClientHydrate = (hostElm, tagName, hostId, hostRef) => {
const endHydrate = createTime('hydrateClient', tagName);
const shadowRoot = hostElm.shadowRoot;
const childRenderNodes = [];
const slotNodes = [];
const shadowRootNodes = null;
const vnode = (hostRef.$vnode$ = newVNode(tagName, null));
if (!plt.$orgLocNodes$) {
initializeDocumentHydrate(doc.body, (plt.$orgLocNodes$ = new Map()));
}
hostElm[HYDRATE_ID] = hostId;
hostElm.removeAttribute(HYDRATE_ID);
clientHydrate(vnode, childRenderNodes, slotNodes, shadowRootNodes, hostElm, hostElm, hostId);
childRenderNodes.map((c) => {
const orgLocationId = c.$hostId$ + '.' + c.$nodeId$;
const orgLocationNode = plt.$orgLocNodes$.get(orgLocationId);
const node = c.$elm$;
// Put the node back in its original location since the native Shadow DOM
// can handle rendering it its correct location now
if (orgLocationNode && supportsShadow && orgLocationNode['s-en'] === '') {
orgLocationNode.parentNode.insertBefore(node, orgLocationNode.nextSibling);
}
if (!shadowRoot) {
node['s-hn'] = tagName;
if (orgLocationNode) {
node['s-ol'] = orgLocationNode;
node['s-ol']['s-nr'] = node;
}
}
plt.$orgLocNodes$.delete(orgLocationId);
});
endHydrate();
};
/**
* Recursively constructs the virtual node tree for a host element and its children.
* The tree is constructed by parsing the annotations set on the nodes by the server.
*
* In addition to constructing the vNode tree, we also track information about the node's
* descendants like which are slots, which should exist in the shadow root, and which
* are nodes that should be rendered as children of the parent node.
*
* @param parentVNode The vNode representing the parent node.
* @param childRenderNodes An array of all child nodes in the parent's node tree.
* @param slotNodes An array of all slot nodes in the parent's node tree.
* @param shadowRootNodes An array all nodes that should be rendered in the shadow root in the parent's node tree.
* @param hostElm The parent element.
* @param node The node to construct the vNode tree for.
* @param hostId The host ID assigned to the element by the server.
*/
const clientHydrate = (parentVNode, childRenderNodes, slotNodes, shadowRootNodes, hostElm, node, hostId) => {
let childNodeType;
let childIdSplt;
let childVNode;
let i;
if (node.nodeType === 1 /* NODE_TYPE.ElementNode */) {
childNodeType = node.getAttribute(HYDRATE_CHILD_ID);
if (childNodeType) {
// got the node data from the element's attribute
// `${hostId}.${nodeId}.${depth}.${index}`
childIdSplt = childNodeType.split('.');
if (childIdSplt[0] === hostId || childIdSplt[0] === '0') {
childVNode = {
$flags$: 0,
$hostId$: childIdSplt[0],
$nodeId$: childIdSplt[1],
$depth$: childIdSplt[2],
$index$: childIdSplt[3],
$tag$: node.tagName.toLowerCase(),
$elm$: node,
$attrs$: null,
$children$: null,
$key$: null,
$name$: null,
$text$: null,
};
childRenderNodes.push(childVNode);
node.removeAttribute(HYDRATE_CHILD_ID);
// this is a new child vnode
// so ensure its parent vnode has the vchildren array
if (!parentVNode.$children$) {
parentVNode.$children$ = [];
}
// add our child vnode to a specific index of the vnode's children
parentVNode.$children$[childVNode.$index$] = childVNode;
// this is now the new parent vnode for all the next child checks
parentVNode = childVNode;
if (shadowRootNodes && childVNode.$depth$ === '0') {
shadowRootNodes[childVNode.$index$] = childVNode.$elm$;
}
}
}
// recursively drill down, end to start so we can remove nodes
for (i = node.childNodes.length - 1; i >= 0; i--) {
clientHydrate(parentVNode, childRenderNodes, slotNodes, shadowRootNodes, hostElm, node.childNodes[i], hostId);
}
if (node.shadowRoot) {
// keep drilling down through the shadow root nodes
for (i = node.shadowRoot.childNodes.length - 1; i >= 0; i--) {
clientHydrate(parentVNode, childRenderNodes, slotNodes, shadowRootNodes, hostElm, node.shadowRoot.childNodes[i], hostId);
}
}
}
else if (node.nodeType === 8 /* NODE_TYPE.CommentNode */) {
// `${COMMENT_TYPE}.${hostId}.${nodeId}.${depth}.${index}`
childIdSplt = node.nodeValue.split('.');
if (childIdSplt[1] === hostId || childIdSplt[1] === '0') {
// comment node for either the host id or a 0 host id
childNodeType = childIdSplt[0];
childVNode = {
$flags$: 0,
$hostId$: childIdSplt[1],
$nodeId$: childIdSplt[2],
$depth$: childIdSplt[3],
$index$: childIdSplt[4],
$elm$: node,
$attrs$: null,
$children$: null,
$key$: null,
$name$: null,
$tag$: null,
$text$: null,
};
if (childNodeType === TEXT_NODE_ID) {
childVNode.$elm$ = node.nextSibling;
if (childVNode.$elm$ && childVNode.$elm$.nodeType === 3 /* NODE_TYPE.TextNode */) {
childVNode.$text$ = childVNode.$elm$.textContent;
childRenderNodes.push(childVNode);
// remove the text comment since it's no longer needed
node.remove();
if (!parentVNode.$children$) {
parentVNode.$children$ = [];
}
parentVNode.$children$[childVNode.$index$] = childVNode;
if (shadowRootNodes && childVNode.$depth$ === '0') {
shadowRootNodes[childVNode.$index$] = childVNode.$elm$;
}
}
}
else if (childVNode.$hostId$ === hostId) {
// this comment node is specifically for this host id
if (childNodeType === SLOT_NODE_ID) {
// `${SLOT_NODE_ID}.${hostId}.${nodeId}.${depth}.${index}.${slotName}`;
childVNode.$tag$ = 'slot';
if (childIdSplt[5]) {
node['s-sn'] = childVNode.$name$ = childIdSplt[5];
}
else {
node['s-sn'] = '';
}
node['s-sr'] = true;
slotNodes.push(childVNode);
if (!parentVNode.$children$) {
parentVNode.$children$ = [];
}
parentVNode.$children$[childVNode.$index$] = childVNode;
}
else if (childNodeType === CONTENT_REF_ID) {
// `${CONTENT_REF_ID}.${hostId}`;
{
hostElm['s-cr'] = node;
node['s-cn'] = true;
}
}
}
}
}
else if (parentVNode && parentVNode.$tag$ === 'style') {
const vnode = newVNode(null, node.textContent);
vnode.$elm$ = node;
vnode.$index$ = '0';
parentVNode.$children$ = [vnode];
}
};
/**
* Recursively locate any comments representing an original location for a node in a node's
* children or shadowRoot children.
*
* @param node The node to search.
* @param orgLocNodes A map of the original location annotation and the current node being searched.
*/
const initializeDocumentHydrate = (node, orgLocNodes) => {
if (node.nodeType === 1 /* NODE_TYPE.ElementNode */) {
let i = 0;
for (; i < node.childNodes.length; i++) {
initializeDocumentHydrate(node.childNodes[i], orgLocNodes);
}
if (node.shadowRoot) {
for (i = 0; i < node.shadowRoot.childNodes.length; i++) {
initializeDocumentHydrate(node.shadowRoot.childNodes[i], orgLocNodes);
}
}
}
else if (node.nodeType === 8 /* NODE_TYPE.CommentNode */) {
const childIdSplt = node.nodeValue.split('.');
if (childIdSplt[0] === ORG_LOCATION_ID) {
orgLocNodes.set(childIdSplt[1] + '.' + childIdSplt[2], node);
node.nodeValue = '';
// useful to know if the original location is
// the root light-dom of a shadow dom component
node['s-en'] = childIdSplt[3];
}
}
};
/**
* Parse a new property value for a given property type.
*
* While the prop value can reasonably be expected to be of `any` type as far as TypeScript's type checker is concerned,
* it is not safe to assume that the string returned by evaluating `typeof propValue` matches:
* 1. `any`, the type given to `propValue` in the function signature
* 2. the type stored from `propType`.
*
* This function provides the capability to parse/coerce a property's value to potentially any other JavaScript type.
*
* Property values represented in TSX preserve their type information. In the example below, the number 0 is passed to
* a component. This `propValue` will preserve its type information (`typeof propValue === 'number'`). Note that is
* based on the type of the value being passed in, not the type declared of the class member decorated with `@Prop`.
* ```tsx
* <my-cmp prop-val={0}></my-cmp>
* ```
*
* HTML prop values on the other hand, will always a string
*
* @param propValue the new value to coerce to some type
* @param propType the type of the prop, expressed as a binary number
* @returns the parsed/coerced value
*/
const parsePropertyValue = (propValue, propType) => {
// ensure this value is of the correct prop type
if (propValue != null && !isComplexType(propValue)) {
if (propType & 4 /* MEMBER_FLAGS.Boolean */) {
// per the HTML spec, any string value means it is a boolean true value
// but we'll cheat here and say that the string "false" is the boolean false
return propValue === 'false' ? false : propValue === '' || !!propValue;
}
if (propType & 2 /* MEMBER_FLAGS.Number */) {
// force it to be a number
return parseFloat(propValue);
}
if (propType & 1 /* MEMBER_FLAGS.String */) {
// could have been passed as a number or boolean
// but we still want it as a string
return String(propValue);
}
// redundant return here for better minification
return propValue;
}
// not sure exactly what type we want
// so no need to change to a different type
return propValue;
};
/**
* Helper function to create & dispatch a custom Event on a provided target
* @param elm the target of the Event
* @param name the name to give the custom Event
* @param opts options for configuring a custom Event
* @returns the custom Event
*/
const emitEvent = (elm, name, opts) => {
const ev = plt.ce(name, opts);
elm.dispatchEvent(ev);
return ev;
};
const rootAppliedStyles = /*@__PURE__*/ new WeakMap();
const registerStyle = (scopeId, cssText, allowCS) => {
let style = styles.get(scopeId);
if (supportsConstructableStylesheets && allowCS) {
style = (style || new CSSStyleSheet());
if (typeof style === 'string') {
style = cssText;
}
else {
style.replaceSync(cssText);
}
}
else {
style = cssText;
}
styles.set(scopeId, style);
};
const addStyle = (styleContainerNode, cmpMeta, mode) => {
var _a;
const scopeId = getScopeId(cmpMeta);
const style = styles.get(scopeId);
// if an element is NOT connected then getRootNode() will return the wrong root node
// so the fallback is to always use the document for the root node in those cases
styleContainerNode = styleContainerNode.nodeType === 11 /* NODE_TYPE.DocumentFragment */ ? styleContainerNode : doc;
if (style) {
if (typeof style === 'string') {
styleContainerNode = styleContainerNode.head || styleContainerNode;
let appliedStyles = rootAppliedStyles.get(styleContainerNode);
let styleElm;
if (!appliedStyles) {
rootAppliedStyles.set(styleContainerNode, (appliedStyles = new Set()));
}
if (!appliedStyles.has(scopeId)) {
if (styleContainerNode.host &&
(styleElm = styleContainerNode.querySelector(`[${HYDRATED_STYLE_ID}="${scopeId}"]`))) {
// This is only happening on native shadow-dom, do not needs CSS var shim
styleElm.innerHTML = style;
}
else {
styleElm = doc.createElement('style');
styleElm.innerHTML = style;
// Apply CSP nonce to the style tag if it exists
const nonce = (_a = plt.$nonce$) !== null && _a !== void 0 ? _a : queryNonceMetaTagContent(doc);
if (nonce != null) {
styleElm.setAttribute('nonce', nonce);
}
styleContainerNode.insertBefore(styleElm, styleContainerNode.querySelector('link'));
}
// Add styles for `slot-fb` elements if we're using slots outside the Shadow DOM
if (cmpMeta.$flags$ & 4 /* CMP_FLAGS.hasSlotRelocation */) {
styleElm.innerHTML += SLOT_FB_CSS;
}
if (appliedStyles) {
appliedStyles.add(scopeId);
}
}
}
else if (!styleContainerNode.adoptedStyleSheets.includes(style)) {
styleContainerNode.adoptedStyleSheets = [...styleContainerNode.adoptedStyleSheets, style];
}
}
return scopeId;
};
const attachStyles = (hostRef) => {
const cmpMeta = hostRef.$cmpMeta$;
const elm = hostRef.$hostElement$;
const endAttachStyles = createTime('attachStyles', cmpMeta.$tagName$);
addStyle(elm.getRootNode(), cmpMeta);
endAttachStyles();
};
const getScopeId = (cmp, mode) => 'sc-' + (cmp.$tagName$);
/**
* Production setAccessor() function based on Preact by
* Jason Miller (@developit)
* Licensed under the MIT License
* https://github.com/developit/preact/blob/master/LICENSE
*
* Modified for Stencil's compiler and vdom
*/
/**
* When running a VDom render set properties present on a VDom node onto the
* corresponding HTML element.
*
* Note that this function has special functionality for the `class`,
* `style`, `key`, and `ref` attributes, as well as event handlers (like
* `onClick`, etc). All others are just passed through as-is.
*
* @param elm the HTMLElement onto which attributes should be set
* @param memberName the name of the attribute to set
* @param oldValue the old value for the attribute
* @param newValue the new value for the attribute
* @param isSvg whether we're in an svg context or not
* @param flags bitflags for Vdom variables
*/
const setAccessor = (elm, memberName, oldValue, newValue, isSvg, flags) => {
if (oldValue !== newValue) {
let isProp = isMemberInElement(elm, memberName);
let ln = memberName.toLowerCase();
if (memberName === 'class') {
const classList = elm.classList;
const oldClasses = parseClassList(oldValue);
const newClasses = parseClassList(newValue);
classList.remove(...oldClasses.filter((c) => c && !newClasses.includes(c)));
classList.add(...newClasses.filter((c) => c && !oldClasses.includes(c)));
}
else if (memberName === 'key')
;
else if ((!isProp ) &&
memberName[0] === 'o' &&
memberName[1] === 'n') {
// Event Handlers
// so if the member name starts with "on" and the 3rd characters is
// a capital letter, and it's not already a member on the element,
// then we're assuming it's an event listener
if (memberName[2] === '-') {
// on- prefixed events
// allows to be explicit about the dom event to listen without any magic
// under the hood:
// <my-cmp on-click> // listens for "click"
// <my-cmp on-Click> // listens for "Click"
// <my-cmp on-ionChange> // listens for "ionChange"
// <my-cmp on-EVENTS> // listens for "EVENTS"
memberName = memberName.slice(3);
}
else if (isMemberInElement(win, ln)) {
// standard event
// the JSX attribute could have been "onMouseOver" and the
// member name "onmouseover" is on the window's prototype
// so let's add the listener "mouseover", which is all lowercased
memberName = ln.slice(2);
}
else {
// custom event
// the JSX attribute could have been "onMyCustomEvent"
// so let's trim off the "on" prefix and lowercase the first character
// and add the listener "myCustomEvent"
// except for the first character, we keep the event name case
memberName = ln[2] + memberName.slice(3);
}
if (oldValue || newValue) {
// Need to account for "capture" events.
// If the event name ends with "Capture", we'll update the name to remove
// the "Capture" suffix and make sure the event listener is setup to handle the capture event.
const capture = memberName.endsWith(CAPTURE_EVENT_SUFFIX);
// Make sure we only replace the last instance of "Capture"
memberName = memberName.replace(CAPTURE_EVENT_REGEX, '');
if (oldValue) {
plt.rel(elm, memberName, oldValue, capture);
}
if (newValue) {
plt.ael(elm, memberName, newValue, capture);
}
}
}
else {
// Set property if it exists and it's not a SVG
const isComplex = isComplexType(newValue);
if ((isProp || (isComplex && newValue !== null)) && !isSvg) {
try {
if (!elm.tagName.includes('-')) {
const n = newValue == null ? '' : newValue;
// Workaround for Safari, moving the <input> caret when re-assigning the same valued
if (memberName === 'list') {
isProp = false;
}
else if (oldValue == null || elm[memberName] != n) {
elm[memberName] = n;
}
}
else {
elm[memberName] = newValue;
}
}
catch (e) {
/**
* in case someone tries to set a read-only property, e.g. "namespaceURI", we just ignore it
*/
}
}
if (newValue == null || newValue === false) {
if (newValue !== false || elm.getAttribute(memberName) === '') {
{
elm.removeAttribute(memberName);
}
}
}
else if ((!isProp || flags & 4 /* VNODE_FLAGS.isHost */ || isSvg) && !isComplex) {
newValue = newValue === true ? '' : newValue;
{
elm.setAttribute(memberName, newValue);
}
}
}
}
};
const parseClassListRegex = /\s/;
/**
* Parsed a string of classnames into an array
* @param value className string, e.g. "foo bar baz"
* @returns list of classes, e.g. ["foo", "bar", "baz"]
*/
const parseClassList = (value) => (!value ? [] : value.split(parseClassListRegex));
const CAPTURE_EVENT_SUFFIX = 'Capture';
const CAPTURE_EVENT_REGEX = new RegExp(CAPTURE_EVENT_SUFFIX + '$');
const updateElement = (oldVnode, newVnode, isSvgMode, memberName) => {
// if the element passed in is a shadow root, which is a document fragment
// then we want to be adding attrs/props to the shadow root's "host" element
// if it's not a shadow root, then we add attrs/props to the same element
const elm = newVnode.$elm$.nodeType === 11 /* NODE_TYPE.DocumentFragment */ && newVnode.$elm$.host
? newVnode.$elm$.host
: newVnode.$elm$;
const oldVnodeAttrs = (oldVnode && oldVnode.$attrs$) || EMPTY_OBJ;
const newVnodeAttrs = newVnode.$attrs$ || EMPTY_OBJ;
{
// remove attributes no longer present on the vnode by setting them to undefined
for (memberName of sortedAttrNames(Object.keys(oldVnodeAttrs))) {
if (!(memberName in newVnodeAttrs)) {
setAccessor(elm, memberName, oldVnodeAttrs[memberName], undefined, isSvgMode, newVnode.$flags$);
}
}
}
// add new & update changed attributes
for (memberName of sortedAttrNames(Object.keys(newVnodeAttrs))) {
setAccessor(elm, memberName, oldVnodeAttrs[memberName], newVnodeAttrs[memberName], isSvgMode, newVnode.$flags$);
}
};
/**
* Sort a list of attribute names to ensure that all the attribute names which
* are _not_ `"ref"` come before `"ref"`. Preserve the order of the non-ref
* attributes.
*
* **Note**: if the supplied attributes do not include `'ref'` then the same
* (by reference) array will be returned without modification.
*
* @param attrNames attribute names to sort
* @returns a list of attribute names, sorted if they include `"ref"`
*/
function sortedAttrNames(attrNames) {
return attrNames.includes('ref')
? // we need to sort these to ensure that `'ref'` is the last attr
[...attrNames.filter((attr) => attr !== 'ref'), 'ref']
: // no need to sort, return the original array
attrNames;
}
/**
* Create a DOM Node corresponding to one of the children of a given VNode.
*
* @param oldParentVNode the parent VNode from the previous render
* @param newParentVNode the parent VNode from the current render
* @param childIndex the index of the VNode, in the _new_ parent node's
* children, for which we will create a new DOM node
* @param parentElm the parent DOM node which our new node will be a child of
* @returns the newly created node
*/
const createElm = (oldParentVNode, newParentVNode, childIndex, parentElm) => {
var _a;
// tslint:disable-next-line: prefer-const
const newVNode = newParentVNode.$children$[childIndex];
let i = 0;
let elm;
let childNode;
let oldVNode;
if (!useNativeShadowDom) {
// remember for later we need to check to relocate nodes
checkSlotRelocate = true;
if (newVNode.$tag$ === 'slot') {
newVNode.$flags$ |= newVNode.$children$
? // slot element has fallback content
2 /* VNODE_FLAGS.isSlotFallback */
: // slot element does not have fallback content
1 /* VNODE_FLAGS.isSlotReference */;
}
}
if (newVNode.$text$ !== null) {
// create text node
elm = newVNode.$elm$ = doc.createTextNode(newVNode.$text$);
}
else if (newVNode.$flags$ & 1 /* VNODE_FLAGS.isSlotReference */) {
// create a slot reference node
elm = newVNode.$elm$ =
doc.createTextNode('');
}
else {
// create element
elm = newVNode.$elm$ = (doc.createElement(newVNode.$flags$ & 2 /* VNODE_FLAGS.isSlotFallback */
? 'slot-fb'
: newVNode.$tag$));
// add css classes, attrs, props, listeners, etc.
{
updateElement(null, newVNode, isSvgMode);
}
if (newVNode.$children$) {
for (i = 0; i < newVNode.$children$.length; ++i) {
// create the node
childNode = createElm(oldParentVNode, newVNode, i);
// return node could have been null
if (childNode) {
// append our new node
elm.appendChild(childNode);
}
}
}
}
// This needs to always happen so we can hide nodes that are projected
// to another component but don't end up in a slot
elm['s-hn'] = hostTagName;
{
if (newVNode.$flags$ & (2 /* VNODE_FLAGS.isSlotFallback */ | 1 /* VNODE_FLAGS.isSlotReference */)) {
// remember the content reference comment
elm['s-sr'] = true;
// remember the content reference comment
elm['s-cr'] = contentRef;
// remember the slot name, or empty string for default slot
elm['s-sn'] = newVNode.$name$ || '';
// remember the ref callback function
elm['s-rf'] = (_a = newVNode.$attrs$) === null || _a === void 0 ? void 0 : _a.ref;
// check if we've got an old vnode for this slot
oldVNode = oldParentVNode && oldParentVNode.$children$ && oldParentVNode.$children$[childIndex];
if (oldVNode && oldVNode.$tag$ === newVNode.$tag$ && oldParentVNode.$elm$) {
{
// we've got an old slot vnode and the wrapper is being replaced
// so let's move the old slot content back to its original location
putBackInOriginalLocation(oldParentVNode.$elm$, false);
}
}
}
}
return elm;
};
const putBackInOriginalLocation = (parentElm, recursive) => {
plt.$flags$ |= 1 /* PLATFORM_FLAGS.isTmpDisconnected */;
const oldSlotChildNodes = Array.from(parentElm.childNodes);
if (parentElm['s-sr'] && BUILD.experimentalSlotFixes) {
let node = parentElm;
while ((node = node.nextSibling)) {
if (node && node['s-sn'] === parentElm['s-sn'] && node['s-sh'] === hostTagName) {
oldSlotChildNodes.push(node);
}
}
}
for (let i = oldSlotChildNodes.length - 1; i >= 0; i--) {
const childNode = oldSlotChildNodes[i];
if (childNode['s-hn'] !== hostTagName && childNode['s-ol']) {
// and relocate it back to it's original location
parentReferenceNode(childNode).insertBefore(childNode, referenceNode(childNode));
// remove the old original location comment entirely
// later on the patch function will know what to do
// and move this to the correct spot if need be
childNode['s-ol'].remove();
childNode['s-ol'] = undefined;
// Reset so we can correctly move the node around again.
childNode['s-sh'] = undefined;
checkSlotRelocate = true;
}
if (recursive) {
putBackInOriginalLocation(childNode, recursive);
}
}
plt.$flags$ &= ~1 /* PLATFORM_FLAGS.isTmpDisconnected */;
};
/**
* Create DOM nodes corresponding to a list of {@link d.Vnode} objects and
* add them to the DOM in the appropriate place.
*
* @param parentElm the DOM node which should be used as a parent for the new
* DOM nodes
* @param before a child of the `parentElm` which the new children should be
* inserted before (optional)
* @param parentVNode the parent virtual DOM node
* @param vnodes the new child virtual DOM nodes to produce DOM nodes for
* @param startIdx the index in the child virtual DOM nodes at which to start
* creating DOM nodes (inclusive)
* @param endIdx the index in the child virtual DOM nodes at which to stop
* creating DOM nodes (inclusive)
*/
const addVnodes = (parentElm, before, parentVNode, vnodes, startIdx, endIdx) => {
let containerElm = ((parentElm['s-cr'] && parentElm['s-cr'].parentNode) || parentElm);
let childNode;
for (; startIdx <= endIdx; ++startIdx) {
if (vnodes[startIdx]) {
childNode = createElm(null, parentVNode, startIdx);
if (childNode) {
vnodes[startIdx].$elm$ = childNode;
containerElm.insertBefore(childNode, referenceNode(before) );
}
}
}
};
/**
* Remove the DOM elements corresponding to a list of {@link d.VNode} objects.
* This can be used to, for instance, clean up after a list of children which
* should no longer be shown.
*
* This function also handles some of Stencil's slot relocation logic.
*
* @param vnodes a list of virtual DOM nodes to remove
* @param startIdx the index at which to start removing nodes (inclusive)
* @param endIdx the index at which to stop removing nodes (inclusive)
*/
const removeVnodes = (vnodes, startIdx, endIdx) => {
for (let index = startIdx; index <= endIdx; ++index) {
const vnode = vnodes[index];
if (vnode) {
const elm = vnode.$elm$;
if (elm) {
{
// we're removing this element
// so it's possible we need to show slot fallback content now
checkSlotFallbackVisibility = true;
if (elm['s-ol']) {
// remove the original location comment
elm['s-ol'].remove();
}
else {
// it's possible that child nodes of the node
// that's being removed are slot nodes
putBackInOriginalLocation(elm, true);
}
}
// remove the vnode's element from the dom
elm.remove();
}
}
}
};
/**
* Reconcile the children of a new VNode with the children of an old VNode by
* traversing the two collections of children, identifying nodes that are
* conserved or changed, calling out to `patch` to make any necessary
* updates to the DOM, and rearranging DOM nodes as needed.
*
* The algorithm for reconciling children works by analyzing two 'windows' onto
* the two arrays of children (`oldCh` and `newCh`). We keep track of the
* 'windows' by storing start and end indices and references to the
* corresponding array entries. Initially the two 'windows' are basically equal
* to the entire array, but we progressively narrow the windows until there are
* no children left to update by doing the following:
*
* 1. Skip any `null` entries at the beginning or end of the two arrays, so
* that if we have an initial array like the following we'll end up dealing
* only with a window bounded by the highlighted elements:
*
* [null, null, VNode1 , ... , VNode2, null, null]
* ^^^^^^ ^^^^^^
*
* 2. Check to see if the elements at the head and tail positions are equal
* across the windows. This will basically detect elements which haven't
* been added, removed, or changed position, i.e. if you had the following
* VNode elements (represented as HTML):
*
* oldVNode: `<div><p><span>HEY</span></p></div>`
* newVNode: `<div><p><span>THERE</span></p></div>`
*
* Then when comparing the children of the `<div>` tag we check the equality
* of the VNodes corresponding to the `<p>` tags and, since they are the
* same tag in the same position, we'd be able to avoid completely
* re-rendering the subtree under them with a new DOM element and would just
* call out to `patch` to handle reconciling their children and so on.
*
* 3. Check, for both windows, to see if the element at the beginning of the
* window corresponds to the element at the end of the other window. This is
* a heuristic which will let us identify _some_ situations in which
* elements have changed position, for instance it _should_ detect that the
* children nodes themselves have not changed but merely moved in the
* following example:
*
* oldVNode: `<div><element-one /><element-two /></div>`
* newVNode: `<div><element-two /><element-one /></div>`
*
* If we find cases like this then we also need to move the concrete DOM
* elements corresponding to the moved children to write the re-order to the
* DOM.
*
* 4. Finally, if VNodes have the `key` attribute set on them we check for any
* nodes in the old children which have the same key as the first element in
* our window on the new children. If we find such a node we handle calling
* out to `patch`, moving relevant DOM nodes, and so on, in accordance with
* what we find.
*
* Finally, once we've narrowed our 'windows' to the point that either of them
* collapse (i.e. they have length 0) we then handle any remaining VNode
* insertion or deletion that needs to happen to get a DOM state that correctly
* reflects the new child VNodes. If, for instance, after our window on the old
* children has collapsed we still have more nodes on the new children that
* we haven't dealt with yet then we need to add them, or if the new children
* collapse but we still have unhandled _old_ children then we need to make
* sure the corresponding DOM nodes are removed.
*
* @param parentElm the node into which the parent VNode is rendered
* @param oldCh the old children of the parent node
* @param newVNode the new VNode which will replace the parent
* @param newCh the new children of the parent node
* @param isInitialRender whether or not this is the first render of the vdom
*/
const updateChildren = (parentElm, oldCh, newVNode, newCh, isInitialRender = false) => {
let oldStartIdx = 0;
let newStartIdx = 0;
let idxInOld = 0;
let i = 0;
let oldEndIdx = oldCh.length - 1;
let oldStartVnode = oldCh[0];
let oldEndVnode = oldCh[oldEndIdx];
let newEndIdx = newCh.length - 1;
let newStartVnode = newCh[0];
let newEndVnode = newCh[newEndIdx];
let node;
let elmToMove;
while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
if (oldStartVnode == null) {
// VNode might have been moved left
oldStartVnode = oldCh[++oldStartIdx];
}
else if (oldEndVnode == null) {
oldEndVnode = oldCh[--oldEndIdx];
}
else if (newStartVnode == null) {
newStartVnode = newCh[++newStartIdx];
}
else if (newEndVnode == null) {
newEndVnode = newCh[--newEndIdx];
}
else if (isSameVnode(oldStartVnode, newStartVnode, isInitialRender)) {
// if the start nodes are the same then we should patch the new VNode
// onto the old one, and increment our `newStartIdx` and `oldStartIdx`
// indices to reflect that. We don't need to move any DOM Nodes around
// since things are matched up in order.
patch(oldStartVnode, newStartVnode, isInitialRender);
oldStartVnode = oldCh[++oldStartIdx];
newStartVnode = newCh[++newStartIdx];
}
else if (isSameVnode(oldEndVnode, newEndVnode, isInitialRender)) {
// likewise, if the end nodes are the same we patch new onto old and
// decrement our end indices, and also likewise in this case we don't
// need to move any DOM Nodes.
patch(oldEndVnode, newEndVnode, isInitialRender);
oldEndVnode = oldCh[--oldEndIdx];
newEndVnode = newCh[--newEndIdx];
}
else if (isSameVnode(oldStartVnode, newEndVnode, isInitialRender)) {
// case: "Vnode moved right"
//
// We've found that the last node in our window on the new children is
// the same VNode as the _first_ node in our window on the old children
// we're dealing with now. Visually, this is the layout of these two
// nodes:
//
// newCh: [..., newStartVnode , ... , newEndVnode , ...]
// ^^^^^^^^^^^
// oldCh: [..., oldStartVnode , ... , oldEndVnode , ...]
// ^^^^^^^^^^^^^
//
// In this situation we need to patch `newEndVnode` onto `oldStartVnode`
// and move the DOM element for `oldStartVnode`.
if ((oldStartVnode.$tag$ === 'slot' || newEndVnode.$tag$ === 'slot')) {
putBackInOriginalLocation(oldStartVnode.$elm$.parentNode, false);
}
patch(oldStartVnode, newEndVnode, isInitialRender);
// We need to move the element for `oldStartVnode` into a position which
// will be appropriate for `newEndVnode`. For this we can use
// `.insertBefore` and `oldEndVnode.$elm$.nextSibling`. If there is a
// sibling for `oldEndVnode.$elm$` then we want to move the DOM node for
// `oldStartVnode` between `oldEndVnode` and it's sibling, like so:
//
// <old-start-node />
// <some-intervening-node />
// <old-end-node />
// <!-- -> <-- `oldStartVnode.$elm$` should be inserted here
// <next-sibling />
//
// If instead `oldEndVnode.$elm$` has no sibling then we just want to put
// the node for `oldStartVnode` at the end of the children of
// `parentElm`. Luckily, `Node.nextSibling` will return `null` if there
// aren't any siblings, and passing `null` to `Node.insertBefore` will
// append it to the children of the parent element.
parentElm.insertBefore(oldStartVnode.$elm$, oldEndVnode.$elm$.nextSibling);
oldStartVnode = oldCh[++oldStartIdx];
newEndVnode = newCh[--newEndIdx];
}
else if (isSameVnode(oldEndVnode, newStartVnode, isInitialRender)) {
// case: "Vnode moved left"
//
// We've found that the first node in our window on the new children is
// the same VNode as the _last_ node in our window on the old children.
// Visually, this is the layout of these two nodes:
//
// newCh: [..., newStartVnode , ... , newEndVnode , ...]
// ^^^^^^^^^^^^^
// oldCh: [..., oldStartVnode , ... , oldEndVnode , ...]
// ^^^^^^^^^^^
//
// In this situation we need to patch `newStartVnode` onto `oldEndVnode`
// (which will handle updating any changed attributes, reconciling their
// children etc) but we also need to move the DOM node to which
// `oldEndVnode` corresponds.
if ((oldStartVnode.$tag$ === 'slot' || newEndVnode.$tag$ === 'slot')) {
putBackInOriginalLocation(oldEndVnode.$elm$.parentNode, false);
}
patch(oldEndVnode, newStartVnode, isInitialRender);
// We've already checked above if `oldStartVnode` and `newStartVnode` are
// the same node, so since we're here we know that they are not. Thus we
// can move the element for `oldEndVnode` _before_ the element for
// `oldStartVnode`, leaving `oldStartVnode` to be reconciled in the
// future.
parentElm.insertBefore(oldEndVnode.$elm$, oldStartVnode.$elm$);
oldEndVnode = oldCh[--oldEndIdx];
newStartVnode = newCh[++newStartIdx];
}
else {
// Here we do some checks to match up old and new nodes based on the
// `$key$` attribute, which is set by putting a `key="my-key"` attribute
// in the JSX for a DOM element in the implementation of a Stencil
// component.
//
// First we check to see if there are any nodes in the array of old
// children which have the same key as the first node in the new
// children.
idxInOld = -1;
{
for (i = oldStartIdx; i <= oldEndIdx; ++i) {
if (oldCh[i] && oldCh[i].$key$ !== null && oldCh[i].$key$ === newStartVnode.$key$) {
idxInOld = i;
break;
}
}
}
if (idxInOld >= 0) {
// We found a node in the old children which matches up with the first
// node in the new children! So let's deal with that
elmToMove = oldCh[idxInOld];
if (elmToMove.$tag$ !== newStartVnode.$tag$) {
// the tag doesn't match so we'll need a new DOM element
node = createElm(oldCh && oldCh[newStartIdx], newVNode, idxInOld);
}
else {
patch(elmToMove, newStartVnode, isInitialRender);
// invalidate the matching old node so that we won't try to update it
// again later on
oldCh[idxInOld] = undefined;
node = elmToMove.$elm$;
}
newStartVnode = newCh[++newStartIdx];
}
else {
// We either didn't find an element in the old children that matches
// the key of the first new child OR the build is not using `key`
// attributes at all. In either case we need to create a new element
// for the new node.
node = createElm(oldCh && oldCh[newStartIdx], newVNode, newStartIdx);
newStartVnode = newCh[++newStartIdx];
}
if (node) {
// if we created a new node then handle inserting it to the DOM
{
parentReferenceNode(oldStartVnode.$elm$).insertBefore(node, referenceNode(oldStartVnode.$elm$));
}
}
}
}
if (oldStartIdx > oldEndIdx) {
// we have some more new nodes to add which don't match up with old nodes
addVnodes(parentElm, newCh[newEndIdx + 1] == null ? null : newCh[newEndIdx + 1].$elm$, newVNode, newCh, newStartIdx, newEndIdx);
}
else if (newStartIdx > newEndIdx) {
// there are nodes in the `oldCh` array which no longer correspond to nodes
// in the new array, so lets remove them (which entails cleaning up the
// relevant DOM nodes)
removeVnodes(oldCh, oldStartIdx, oldEndIdx);
}
};
/**
* Compare two VNodes to determine if they are the same
*
* **NB**: This function is an equality _heuristic_ based on the available
* information set on the two VNodes and can be misleading under certain
* circumstances. In particular, if the two nodes do not have `key` attrs
* (available under `$key$` on VNodes) then the function falls back on merely
* checking that they have the same tag.
*
* So, in other words, if `key` attrs are not set on VNodes which may be
* changing order within a `children` array or something along those lines then
* we could obtain a false negative and then have to do needless re-rendering
* (i.e. we'd say two VNodes aren't equal when in fact they should be).
*
* @param leftVNode the first VNode to check
* @param rightVNode the second VNode to check
* @param isInitialRender whether or not this is the first render of the vdom
* @returns whether they're equal or not
*/
const isSameVnode = (leftVNode, rightVNode, isInitialRender = false) => {
// compare if two vnode to see if they're "technically" the same
// need to have the same element tag, and same key to be the same
if (leftVNode.$tag$ === rightVNode.$tag$) {
if (leftVNode.$tag$ === 'slot') {
return leftVNode.$name$ === rightVNode.$name$;
}
// this will be set if JSX tags in the build have `key` attrs set on them
// we only want to check this if we're not on the first render since on
// first render `leftVNode.$key$` will always be `null`, so we can be led
// astray and, for instance, accidentally delete a DOM node that we want to
// keep around.
if (!isInitialRender) {
return leftVNode.$key$ === rightVNode.$key$;
}
return true;
}
return false;
};
const referenceNode = (node) => {
// this node was relocated to a new location in the dom
// because of some other component's slot
// but we still have an html comment in place of where
// it's original location was according to it's original vdom
return (node && node['s-ol']) || node;
};
const parentReferenceNode = (node) => (node['s-ol'] ? node['s-ol'] : node).parentNode;
/**
* Handle reconciling an outdated VNode with a new one which corresponds to
* it. This function handles flushing updates to the DOM and reconciling the
* children of the two nodes (if any).
*
* @param oldVNode an old VNode whose DOM element and children we want to update
* @param newVNode a new VNode representing an updated version of the old one
* @param isInitialRender whether or not this is the first render of the vdom
*/
const patch = (oldVNode, newVNode, isInitialRender = false) => {
const elm = (newVNode.$elm$ = oldVNode.$elm$);
const oldChildren = oldVNode.$children$;
const newChildren = newVNode.$children$;
const tag = newVNode.$tag$;
const text = newVNode.$text$;
let defaultHolder;
if (text === null) {
{
if (tag === 'slot' && !useNativeShadowDom) ;
else {
// either this is the first render of an element OR it's an update
// AND we already know it's possible it could have changed
// this updates the element's css classes, attrs, props, listeners, etc.
updateElement(oldVNode, newVNode, isSvgMode);
}
}
if (oldChildren !== null && newChildren !== null) {
// looks like there's child vnodes for both the old and new vnodes
// so we need to call `updateChildren` to reconcile them
updateChildren(elm, oldChildren, newVNode, newChildren, isInitialRender);
}
else if (newChildren !== null) {
// no old child vnodes, but there are new child vnodes to add
if (oldVNode.$text$ !== null) {
// the old vnode was text, so be sure to clear it out
elm.textContent = '';
}
// add the new vnode children
addVnodes(elm, null, newVNode, newChildren, 0, newChildren.length - 1);
}
else if (oldChildren !== null) {
// no new child vnodes, but there are old child vnodes to remove
removeVnodes(oldChildren, 0, oldChildren.length - 1);
}
}
else if ((defaultHolder = elm['s-cr'])) {
// this element has slotted content
defaultHolder.parentNode.textContent = text;
}
else if (oldVNode.$text$ !== text) {
// update the text content for the text only vnode
// and also only if the text is different than before
elm.data = text;
}
};
/**
* Adjust the `.hidden` property as-needed on any nodes in a DOM subtree which
* are slot fallbacks nodes.
*
* A slot fallback node should be visible by default. Then, it should be
* conditionally hidden if:
*
* - it has a sibling with a `slot` property set to its slot name or if
* - it is a default fallback slot node, in which case we hide if it has any
* content
*
* @param elm the element of interest
*/
const updateFallbackSlotVisibility = (elm) => {
const childNodes = elm.childNodes;
for (const childNode of childNodes) {
if (childNode.nodeType === 1 /* NODE_TYPE.ElementNode */) {
if (childNode['s-sr']) {
// this is a slot fallback node
// get the slot name for this slot reference node
const slotName = childNode['s-sn'];
// by default always show a fallback slot node
// then hide it if there are other slots in the light dom
childNode.hidden = false;
// we need to check all of its sibling nodes in order to see if
// `childNode` should be hidden
for (const siblingNode of childNodes) {
// Don't check the node against itself
if (siblingNode !== childNode) {
if (siblingNode['s-hn'] !== childNode['s-hn'] || slotName !== '') {
// this sibling node is from a different component OR is a named
// fallback slot node
if (siblingNode.nodeType === 1 /* NODE_TYPE.ElementNode */ &&
(slotName === siblingNode.getAttribute('slot') || slotName === siblingNode['s-sn'])) {
childNode.hidden = true;
break;
}
}
else {
// this is a default fallback slot node
// any element or text node (with content)
// should hide the default fallback slot node
if (siblingNode.nodeType === 1 /* NODE_TYPE.ElementNode */ ||
(siblingNode.nodeType === 3 /* NODE_TYPE.TextNode */ && siblingNode.textContent.trim() !== '')) {
childNode.hidden = true;
break;
}
}
}
}
}
// keep drilling down
updateFallbackSlotVisibility(childNode);
}
}
};
/**
* Component-global information about nodes which are either currently being
* relocated or will be shortly.
*/
const relocateNodes = [];
/**
* Mark the contents of a slot for relocation via adding references to them to
* the {@link relocateNodes} data structure. The actual work of relocating them
* will then be handled in {@link renderVdom}.
*
* @param elm a render node whose child nodes need to be relocated
*/
const markSlotContentForRelocation = (elm) => {
// tslint:disable-next-line: prefer-const
let node;
let hostContentNodes;
let j;
for (const childNode of elm.childNodes) {
// we need to find child nodes which are slot references so we can then try
// to match them up with nodes that need to be relocated
if (childNode['s-sr'] && (node = childNode['s-cr']) && node.parentNode) {
// first get the content reference comment node ('s-cr'), then we get
// its parent, which is where all the host content is now
hostContentNodes = node.parentNode.childNodes;
const slotName = childNode['s-sn'];
// iterate through all the nodes under the location where the host was
// originally rendered
for (j = hostContentNodes.length - 1; j >= 0; j--) {
node = hostContentNodes[j];
// check that the node is not a content reference node or a node
// reference and then check that the host name does not match that of
// childNode.
// In addition, check that the slot either has not already been relocated, or
// that its current location's host is not childNode's host. This is essentially
// a check so that we don't try to relocate (and then hide) a node that is already
// where it should be.
if (!node['s-cn'] &&
!node['s-nr'] &&
node['s-hn'] !== childNode['s-hn'] &&
(!BUILD.experimentalSlotFixes )) {
// if `node` is located in the slot that `childNode` refers to (via the
// `'s-sn'` property) then we need to relocate it from it's current spot
// (under the host element parent) to the right slot location
if (isNodeLocatedInSlot(node, slotName)) {
// it's possible we've already decided to relocate this node
let relocateNodeData = relocateNodes.find((r) => r.$nodeToRelocate$ === node);
// made some changes to slots
// let's make sure we also double check
// fallbacks are correctly hidden or shown
checkSlotFallbackVisibility = true;
// ensure that the slot-name attr is correct
node['s-sn'] = node['s-sn'] || slotName;
if (relocateNodeData) {
relocateNodeData.$nodeToRelocate$['s-sh'] = childNode['s-hn'];
// we marked this node for relocation previously but didn't find
// out the slot reference node to which it needs to be relocated
// so write it down now!
relocateNodeData.$slotRefNode$ = childNode;
}
else {
node['s-sh'] = childNode['s-hn'];
// add to our list of nodes to relocate
relocateNodes.push({
$slotRefNode$: childNode,
$nodeToRelocate$: node,
});
}
if (node['s-sr']) {
relocateNodes.map((relocateNode) => {
if (isNodeLocatedInSlot(relocateNode.$nodeToRelocate$, node['s-sn'])) {
relocateNodeData = relocateNodes.find((r) => r.$nodeToRelocate$ === node);
if (relocateNodeData && !relocateNode.$slotRefNode$) {
relocateNode.$slotRefNode$ = relocateNodeData.$slotRefNode$;
}
}
});
}
}
else if (!relocateNodes.some((r) => r.$nodeToRelocate$ === node)) {
// the node is not found within the slot (`childNode`) that we're
// currently looking at, so we stick it into `relocateNodes` to
// handle later. If we never find a home for this element then
// we'll need to hide it
relocateNodes.push({
$nodeToRelocate$: node,
});
}
}
}
}
// if we're dealing with any type of element (capable of itself being a
// slot reference or containing one) then we recur
if (childNode.nodeType === 1 /* NODE_TYPE.ElementNode */) {
markSlotContentForRelocation(childNode);
}
}
};
/**
* Check whether a node is located in a given named slot.
*
* @param nodeToRelocate the node of interest
* @param slotName the slot name to check
* @returns whether the node is located in the slot or not
*/
const isNodeLocatedInSlot = (nodeToRelocate, slotName) => {
if (nodeToRelocate.nodeType === 1 /* NODE_TYPE.ElementNode */) {
if (nodeToRelocate.getAttribute('slot') === null && slotName === '') {
// if the node doesn't have a slot attribute, and the slot we're checking
// is not a named slot, then we assume the node should be within the slot
return true;
}
if (nodeToRelocate.getAttribute('slot') === slotName) {
return true;
}
return false;
}
if (nodeToRelocate['s-sn'] === slotName) {
return true;
}
return slotName === '';
};
/**
* The main entry point for Stencil's virtual DOM-based rendering engine
*
* Given a {@link d.HostRef} container and some virtual DOM nodes, this
* function will handle creating a virtual DOM tree with a single root, patching
* the current virtual DOM tree onto an old one (if any), dealing with slot
* relocation, and reflecting attributes.
*
* @param hostRef data needed to root and render the virtual DOM tree, such as
* the DOM node into which it should be rendered.
* @param renderFnResults the virtual DOM nodes to be rendered
* @param isInitialLoad whether or not this is the first call after page load
*/
const renderVdom = (hostRef, renderFnResults, isInitialLoad = false) => {
var _a, _b, _c, _d;
const hostElm = hostRef.$hostElement$;
const cmpMeta = hostRef.$cmpMeta$;
const oldVNode = hostRef.$vnode$ || newVNode(null, null);
// if `renderFnResults` is a Host node then we can use it directly. If not,
// we need to call `h` again to wrap the children of our component in a
// 'dummy' Host node (well, an empty vnode) since `renderVdom` assumes
// implicitly that the top-level vdom node is 1) an only child and 2)
// contains attrs that need to be set on the host element.
const rootVnode = isHost(renderFnResults) ? renderFnResults : h(null, null, renderFnResults);
hostTagName = hostElm.tagName;
if (cmpMeta.$attrsToReflect$) {
rootVnode.$attrs$ = rootVnode.$attrs$ || {};
cmpMeta.$attrsToReflect$.map(([propName, attribute]) => (rootVnode.$attrs$[attribute] = hostElm[propName]));
}
// On the first render and *only* on the first render we want to check for
// any attributes set on the host element which are also set on the vdom
// node. If we find them, we override the value on the VDom node attrs with
// the value from the host element, which allows developers building apps
// with Stencil components to override e.g. the `role` attribute on a
// component even if it's already set on the `Host`.
if (isInitialLoad && rootVnode.$attrs$) {
for (const key of Object.keys(rootVnode.$attrs$)) {
// We have a special implementation in `setAccessor` for `style` and
// `class` which reconciles values coming from the VDom with values
// already present on the DOM element, so we don't want to override those
// attributes on the VDom tree with values from the host element if they
// are present.
//
// Likewise, `ref` and `key` are special internal values for the Stencil
// runtime and we don't want to override those either.
if (hostElm.hasAttribute(key) && !['key', 'ref', 'style', 'class'].includes(key)) {
rootVnode.$attrs$[key] = hostElm[key];
}
}
}
rootVnode.$tag$ = null;
rootVnode.$flags$ |= 4 /* VNODE_FLAGS.isHost */;
hostRef.$vnode$ = rootVnode;
rootVnode.$elm$ = oldVNode.$elm$ = (hostElm);
useNativeShadowDom = (cmpMeta.$flags$ & 1 /* CMP_FLAGS.shadowDomEncapsulation */) !== 0;
{
contentRef = hostElm['s-cr'];
// always reset
checkSlotFallbackVisibility = false;
}
// synchronous patch
patch(oldVNode, rootVnode, isInitialLoad);
{
// while we're moving nodes around existing nodes, temporarily disable
// the disconnectCallback from working
plt.$flags$ |= 1 /* PLATFORM_FLAGS.isTmpDisconnected */;
if (checkSlotRelocate) {
markSlotContentForRelocation(rootVnode.$elm$);
for (const relocateData of relocateNodes) {
const nodeToRelocate = relocateData.$nodeToRelocate$;
if (!nodeToRelocate['s-ol']) {
// add a reference node marking this node's original location
// keep a reference to this node for later lookups
const orgLocationNode = doc.createTextNode('');
orgLocationNode['s-nr'] = nodeToRelocate;
nodeToRelocate.parentNode.insertBefore((nodeToRelocate['s-ol'] = orgLocationNode), nodeToRelocate);
}
}
for (const relocateData of relocateNodes) {
const nodeToRelocate = relocateData.$nodeToRelocate$;
const slotRefNode = relocateData.$slotRefNode$;
if (slotRefNode) {
const parentNodeRef = slotRefNode.parentNode;
// When determining where to insert content, the most simple case would be
// to relocate the node immediately following the slot reference node. We do this
// by getting a reference to the node immediately following the slot reference node
// since we will use `insertBefore` to manipulate the DOM.
//
// If there is no node immediately following the slot reference node, then we will just
// end up appending the node as the last child of the parent.
let insertBeforeNode = slotRefNode.nextSibling;
// If the node we're currently planning on inserting the new node before is an element,
// we need to do some additional checks to make sure we're inserting the node in the correct order.
// The use case here would be that we have multiple nodes being relocated to the same slot. So, we want
// to make sure they get inserted into their new home in the same order they were declared in their original location.
//
// TODO(STENCIL-914): Remove `experimentalSlotFixes` check
{
let orgLocationNode = (_a = nodeToRelocate['s-ol']) === null || _a === void 0 ? void 0 : _a.previousSibling;
while (orgLocationNode) {
let refNode = (_b = orgLocationNode['s-nr']) !== null && _b !== void 0 ? _b : null;
if (refNode && refNode['s-sn'] === nodeToRelocate['s-sn'] && parentNodeRef === refNode.parentNode) {
refNode = refNode.nextSibling;
// If the refNode is the same node to be relocated or another element's slot reference, keep searching to find the
// correct relocation target
while (refNode === nodeToRelocate || (refNode === null || refNode === void 0 ? void 0 : refNode['s-sr'])) {
refNode = refNode === null || refNode === void 0 ? void 0 : refNode.nextSibling;
}
if (!refNode || !refNode['s-nr']) {
insertBeforeNode = refNode;
break;
}
}
orgLocationNode = orgLocationNode.previousSibling;
}
}
if ((!insertBeforeNode && parentNodeRef !== nodeToRelocate.parentNode) ||
nodeToRelocate.nextSibling !== insertBeforeNode) {
// we've checked that it's worth while to relocate
// since that the node to relocate
// has a different next sibling or parent relocated
if (nodeToRelocate !== insertBeforeNode) {
if (!nodeToRelocate['s-hn'] && nodeToRelocate['s-ol']) {
// probably a component in the index.html that doesn't have its hostname set
nodeToRelocate['s-hn'] = nodeToRelocate['s-ol'].parentNode.nodeName;
}
// Add it back to the dom but in its new home
// If we get to this point and `insertBeforeNode` is `null`, that means
// we're just going to append the node as the last child of the parent. Passing
// `null` as the second arg here will trigger that behavior.
parentNodeRef.insertBefore(nodeToRelocate, insertBeforeNode);
// Reset the `hidden` value back to what it was defined as originally
// This solves a problem where a `slot` is dynamically rendered and `hidden` may have
// been set on content originally, but now it has a slot to go to so it should have
// the value it was defined as having in the DOM, not what we overrode it to.
if (nodeToRelocate.nodeType === 1 /* NODE_TYPE.ElementNode */) {
nodeToRelocate.hidden = (_c = nodeToRelocate['s-ih']) !== null && _c !== void 0 ? _c : false;
}
}
}
nodeToRelocate && typeof slotRefNode['s-rf'] === 'function' && slotRefNode['s-rf'](nodeToRelocate);
}
else {
// this node doesn't have a slot home to go to, so let's hide it
if (nodeToRelocate.nodeType === 1 /* NODE_TYPE.ElementNode */) {
// Store the initial value of `hidden` so we can reset it later when
// moving nodes around.
if (isInitialLoad) {
nodeToRelocate['s-ih'] = (_d = nodeToRelocate.hidden) !== null && _d !== void 0 ? _d : false;
}
nodeToRelocate.hidden = true;
}
}
}
}
if (checkSlotFallbackVisibility) {
updateFallbackSlotVisibility(rootVnode.$elm$);
}
// done moving nodes around
// allow the disconnect callback to work again
plt.$flags$ &= ~1 /* PLATFORM_FLAGS.isTmpDisconnected */;
// always reset
relocateNodes.length = 0;
}
// Clear the content ref so we don't create a memory leak
contentRef = undefined;
};
const attachToAncestor = (hostRef, ancestorComponent) => {
if (ancestorComponent && !hostRef.$onRenderResolve$ && ancestorComponent['s-p']) {
ancestorComponent['s-p'].push(new Promise((r) => (hostRef.$onRenderResolve$ = r)));
}
};
const scheduleUpdate = (hostRef, isInitialLoad) => {
{
hostRef.$flags$ |= 16 /* HOST_FLAGS.isQueuedForUpdate */;
}
if (hostRef.$flags$ & 4 /* HOST_FLAGS.isWaitingForChildren */) {
hostRef.$flags$ |= 512 /* HOST_FLAGS.needsRerender */;
return;
}
attachToAncestor(hostRef, hostRef.$ancestorComponent$);
// there is no ancestor component or the ancestor component
// has already fired off its lifecycle update then
// fire off the initial update
const dispatch = () => dispatchHooks(hostRef, isInitialLoad);
return writeTask(dispatch) ;
};
/**
* Dispatch initial-render and update lifecycle hooks, enqueuing calls to
* component lifecycle methods like `componentWillLoad` as well as
* {@link updateComponent}, which will kick off the virtual DOM re-render.
*
* @param hostRef a reference to a host DOM node
* @param isInitialLoad whether we're on the initial load or not
* @returns an empty Promise which is used to enqueue a series of operations for
* the component
*/
const dispatchHooks = (hostRef, isInitialLoad) => {
const endSchedule = createTime('scheduleUpdate', hostRef.$cmpMeta$.$tagName$);
const instance = hostRef.$lazyInstance$ ;
// We're going to use this variable together with `enqueue` to implement a
// little promise-based queue. We start out with it `undefined`. When we add
// the first function to the queue we'll set this variable to be that
// function's return value. When we attempt to add subsequent values to the
// queue we'll check that value and, if it was a `Promise`, we'll then chain
// the new function off of that `Promise` using `.then()`. This will give our
// queue two nice properties:
//
// 1. If all functions added to the queue are synchronous they'll be called
// synchronously right away.
// 2. If all functions added to the queue are asynchronous they'll all be
// called in order after `dispatchHooks` exits.
let maybePromise;
endSchedule();
return enqueue(maybePromise, () => updateComponent(hostRef, instance, isInitialLoad));
};
/**
* This function uses a Promise to implement a simple first-in, first-out queue
* of functions to be called.
*
* The queue is ordered on the basis of the first argument. If it's
* `undefined`, then nothing is on the queue yet, so the provided function can
* be called synchronously (although note that this function may return a
* `Promise`). The idea is that then the return value of that enqueueing
* operation is kept around, so that if it was a `Promise` then subsequent
* functions can be enqueued by calling this function again with that `Promise`
* as the first argument.
*
* @param maybePromise either a `Promise` which should resolve before the next function is called or an 'empty' sentinel
* @param fn a function to enqueue
* @returns either a `Promise` or the return value of the provided function
*/
const enqueue = (maybePromise, fn) => isPromisey(maybePromise) ? maybePromise.then(fn) : fn();
/**
* Check that a value is a `Promise`. To check, we first see if the value is an
* instance of the `Promise` global. In a few circumstances, in particular if
* the global has been overwritten, this is could be misleading, so we also do
* a little 'duck typing' check to see if the `.then` property of the value is
* defined and a function.
*
* @param maybePromise it might be a promise!
* @returns whether it is or not
*/
const isPromisey = (maybePromise) => maybePromise instanceof Promise ||
(maybePromise && maybePromise.then && typeof maybePromise.then === 'function');
/**
* Update a component given reference to its host elements and so on.
*
* @param hostRef an object containing references to the element's host node,
* VDom nodes, and other metadata
* @param instance a reference to the underlying host element where it will be
* rendered
* @param isInitialLoad whether or not this function is being called as part of
* the first render cycle
*/
const updateComponent = async (hostRef, instance, isInitialLoad) => {
var _a;
const elm = hostRef.$hostElement$;
const endUpdate = createTime('update', hostRef.$cmpMeta$.$tagName$);
const rc = elm['s-rc'];
if (isInitialLoad) {
// DOM WRITE!
attachStyles(hostRef);
}
const endRender = createTime('render', hostRef.$cmpMeta$.$tagName$);
{
callRender(hostRef, instance, elm, isInitialLoad);
}
if (rc) {
// ok, so turns out there are some child host elements
// waiting on this parent element to load
// let's fire off all update callbacks waiting
rc.map((cb) => cb());
elm['s-rc'] = undefined;
}
endRender();
endUpdate();
{
const childrenPromises = (_a = elm['s-p']) !== null && _a !== void 0 ? _a : [];
const postUpdate = () => postUpdateComponent(hostRef);
if (childrenPromises.length === 0) {
postUpdate();
}
else {
Promise.all(childrenPromises).then(postUpdate);
hostRef.$flags$ |= 4 /* HOST_FLAGS.isWaitingForChildren */;
childrenPromises.length = 0;
}
}
};
/**
* Handle making the call to the VDom renderer with the proper context given
* various build variables
*
* @param hostRef an object containing references to the element's host node,
* VDom nodes, and other metadata
* @param instance a reference to the underlying host element where it will be
* rendered
* @param elm the Host element for the component
* @param isInitialLoad whether or not this function is being called as part of
* @returns an empty promise
*/
const callRender = (hostRef, instance, elm, isInitialLoad) => {
try {
/**
* minification optimization: `allRenderFn` is `true` if all components have a `render`
* method, so we can call the method immediately. If not, check before calling it.
*/
instance = instance.render() ;
{
hostRef.$flags$ &= ~16 /* HOST_FLAGS.isQueuedForUpdate */;
}
{
hostRef.$flags$ |= 2 /* HOST_FLAGS.hasRendered */;
}
{
{
// looks like we've got child nodes to render into this host element
// or we need to update the css class/attrs on the host element
// DOM WRITE!
{
renderVdom(hostRef, instance, isInitialLoad);
}
}
}
}
catch (e) {
consoleError(e, hostRef.$hostElement$);
}
return null;
};
const postUpdateComponent = (hostRef) => {
const tagName = hostRef.$cmpMeta$.$tagName$;
const elm = hostRef.$hostElement$;
const endPostUpdate = createTime('postUpdate', tagName);
const ancestorComponent = hostRef.$ancestorComponent$;
if (!(hostRef.$flags$ & 64 /* HOST_FLAGS.hasLoadedComponent */)) {
hostRef.$flags$ |= 64 /* HOST_FLAGS.hasLoadedComponent */;
{
// DOM WRITE!
addHydratedFlag(elm);
}
endPostUpdate();
{
hostRef.$onReadyResolve$(elm);
if (!ancestorComponent) {
appDidLoad();
}
}
}
else {
endPostUpdate();
}
// load events fire from bottom to top
// the deepest elements load first then bubbles up
{
if (hostRef.$onRenderResolve$) {
hostRef.$onRenderResolve$();
hostRef.$onRenderResolve$ = undefined;
}
if (hostRef.$flags$ & 512 /* HOST_FLAGS.needsRerender */) {
nextTick(() => scheduleUpdate(hostRef, false));
}
hostRef.$flags$ &= ~(4 /* HOST_FLAGS.isWaitingForChildren */ | 512 /* HOST_FLAGS.needsRerender */);
}
// ( •_•)
// ( •_•)>⌐■-■
// (⌐■_■)
};
const appDidLoad = (who) => {
// on appload
// we have finish the first big initial render
{
addHydratedFlag(doc.documentElement);
}
nextTick(() => emitEvent(win, 'appload', { detail: { namespace: NAMESPACE } }));
};
const addHydratedFlag = (elm) => elm.classList.add('hydrated')
;
const getValue = (ref, propName) => getHostRef(ref).$instanceValues$.get(propName);
const setValue = (ref, propName, newVal, cmpMeta) => {
// check our new property value against our internal value
const hostRef = getHostRef(ref);
const oldVal = hostRef.$instanceValues$.get(propName);
const flags = hostRef.$flags$;
const instance = hostRef.$lazyInstance$ ;
newVal = parsePropertyValue(newVal, cmpMeta.$members$[propName][0]);
// explicitly check for NaN on both sides, as `NaN === NaN` is always false
const areBothNaN = Number.isNaN(oldVal) && Number.isNaN(newVal);
const didValueChange = newVal !== oldVal && !areBothNaN;
if ((!(flags & 8 /* HOST_FLAGS.isConstructingInstance */) || oldVal === undefined) && didValueChange) {
// gadzooks! the property's value has changed!!
// set our new value!
hostRef.$instanceValues$.set(propName, newVal);
if (instance) {
if ((flags & (2 /* HOST_FLAGS.hasRendered */ | 16 /* HOST_FLAGS.isQueuedForUpdate */)) === 2 /* HOST_FLAGS.hasRendered */) {
// looks like this value actually changed, so we've got work to do!
// but only if we've already rendered, otherwise just chill out
// queue that we need to do an update, but don't worry about queuing
// up millions cuz this function ensures it only runs once
scheduleUpdate(hostRef, false);
}
}
}
};
/**
* Attach a series of runtime constructs to a compiled Stencil component
* constructor, including getters and setters for the `@Prop` and `@State`
* decorators, callbacks for when attributes change, and so on.
*
* @param Cstr the constructor for a component that we need to process
* @param cmpMeta metadata collected previously about the component
* @param flags a number used to store a series of bit flags
* @returns a reference to the same constructor passed in (but now mutated)
*/
const proxyComponent = (Cstr, cmpMeta, flags) => {
var _a;
const prototype = Cstr.prototype;
if (cmpMeta.$members$) {
// It's better to have a const than two Object.entries()
const members = Object.entries(cmpMeta.$members$);
members.map(([memberName, [memberFlags]]) => {
if ((memberFlags & 31 /* MEMBER_FLAGS.Prop */ ||
((flags & 2 /* PROXY_FLAGS.proxyState */) && memberFlags & 32 /* MEMBER_FLAGS.State */))) {
// proxyComponent - prop
Object.defineProperty(prototype, memberName, {
get() {
// proxyComponent, get value
return getValue(this, memberName);
},
set(newValue) {
// proxyComponent, set value
setValue(this, memberName, newValue, cmpMeta);
},
configurable: true,
enumerable: true,
});
}
});
if ((flags & 1 /* PROXY_FLAGS.isElementConstructor */)) {
const attrNameToPropName = new Map();
prototype.attributeChangedCallback = function (attrName, oldValue, newValue) {
plt.jmp(() => {
var _a;
const propName = attrNameToPropName.get(attrName);
// In a web component lifecycle the attributeChangedCallback runs prior to connectedCallback
// in the case where an attribute was set inline.
// ```html
// <my-component some-attribute="some-value"></my-component>
// ```
//
// There is an edge case where a developer sets the attribute inline on a custom element and then
// programmatically changes it before it has been upgraded as shown below:
//
// ```html
// <!-- this component has _not_ been upgraded yet -->
// <my-component id="test" some-attribute="some-value"></my-component>
// <script>
// // grab non-upgraded component
// el = document.querySelector("#test");
// el.someAttribute = "another-value";
// // upgrade component
// customElements.define('my-component', MyComponent);
// </script>
// ```
// In this case if we do not un-shadow here and use the value of the shadowing property, attributeChangedCallback
// will be called with `newValue = "some-value"` and will set the shadowed property (this.someAttribute = "another-value")
// to the value that was set inline i.e. "some-value" from above example. When
// the connectedCallback attempts to un-shadow it will use "some-value" as the initial value rather than "another-value"
//
// The case where the attribute was NOT set inline but was not set programmatically shall be handled/un-shadowed
// by connectedCallback as this attributeChangedCallback will not fire.
//
// https://developers.google.com/web/fundamentals/web-components/best-practices#lazy-properties
//
// TODO(STENCIL-16) we should think about whether or not we actually want to be reflecting the attributes to
// properties here given that this goes against best practices outlined here
// https://developers.google.com/web/fundamentals/web-components/best-practices#avoid-reentrancy
if (this.hasOwnProperty(propName)) {
newValue = this[propName];
delete this[propName];
}
else if (prototype.hasOwnProperty(propName) &&
typeof this[propName] === 'number' &&
this[propName] == newValue) {
// if the propName exists on the prototype of `Cstr`, this update may be a result of Stencil using native
// APIs to reflect props as attributes. Calls to `setAttribute(someElement, propName)` will result in
// `propName` to be converted to a `DOMString`, which may not be what we want for other primitive props.
return;
}
else if (propName == null) {
// At this point we should know this is not a "member", so we can treat it like watching an attribute
// on a vanilla web component
const hostRef = getHostRef(this);
const flags = hostRef === null || hostRef === void 0 ? void 0 : hostRef.$flags$;
// We only want to trigger the callback(s) if:
// 1. The instance is ready
// 2. The watchers are ready
// 3. The value has changed
if (flags &&
!(flags & 8 /* HOST_FLAGS.isConstructingInstance */) &&
flags & 128 /* HOST_FLAGS.isWatchReady */ &&
newValue !== oldValue) {
const instance = hostRef.$lazyInstance$ ;
const entry = (_a = cmpMeta.$watchers$) === null || _a === void 0 ? void 0 : _a[attrName];
entry === null || entry === void 0 ? void 0 : entry.forEach((callbackName) => {
if (instance[callbackName] != null) {
instance[callbackName].call(instance, newValue, oldValue, attrName);
}
});
}
return;
}
this[propName] = newValue === null && typeof this[propName] === 'boolean' ? false : newValue;
});
};
// Create an array of attributes to observe
// This list in comprised of all strings used within a `@Watch()` decorator
// on a component as well as any Stencil-specific "members" (`@Prop()`s and `@State()`s).
// As such, there is no way to guarantee type-safety here that a user hasn't entered
// an invalid attribute.
Cstr.observedAttributes = Array.from(new Set([
...Object.keys((_a = cmpMeta.$watchers$) !== null && _a !== void 0 ? _a : {}),
...members
.filter(([_, m]) => m[0] & 15 /* MEMBER_FLAGS.HasAttribute */)
.map(([propName, m]) => {
var _a;
const attrName = m[1] || propName;
attrNameToPropName.set(attrName, propName);
if (m[0] & 512 /* MEMBER_FLAGS.ReflectAttr */) {
(_a = cmpMeta.$attrsToReflect$) === null || _a === void 0 ? void 0 : _a.push([propName, attrName]);
}
return attrName;
}),
]));
}
}
return Cstr;
};
/**
* Initialize a Stencil component given a reference to its host element, its
* runtime bookkeeping data structure, runtime metadata about the component,
* and (optionally) an HMR version ID.
*
* @param elm a host element
* @param hostRef the element's runtime bookkeeping object
* @param cmpMeta runtime metadata for the Stencil component
* @param hmrVersionId an (optional) HMR version ID
*/
const initializeComponent = async (elm, hostRef, cmpMeta, hmrVersionId) => {
let Cstr;
// initializeComponent
if ((hostRef.$flags$ & 32 /* HOST_FLAGS.hasInitializedComponent */) === 0) {
// Let the runtime know that the component has been initialized
hostRef.$flags$ |= 32 /* HOST_FLAGS.hasInitializedComponent */;
const bundleId = cmpMeta.$lazyBundleId$;
if (bundleId) {
// lazy loaded components
// request the component's implementation to be
// wired up with the host element
Cstr = loadModule(cmpMeta);
if (Cstr.then) {
// Await creates a micro-task avoid if possible
const endLoad = uniqueTime();
Cstr = await Cstr;
endLoad();
}
if (!Cstr.isProxied) {
proxyComponent(Cstr, cmpMeta, 2 /* PROXY_FLAGS.proxyState */);
Cstr.isProxied = true;
}
const endNewInstance = createTime('createInstance', cmpMeta.$tagName$);
// ok, time to construct the instance
// but let's keep track of when we start and stop
// so that the getters/setters don't incorrectly step on data
{
hostRef.$flags$ |= 8 /* HOST_FLAGS.isConstructingInstance */;
}
// construct the lazy-loaded component implementation
// passing the hostRef is very important during
// construction in order to directly wire together the
// host element and the lazy-loaded instance
try {
new Cstr(hostRef);
}
catch (e) {
consoleError(e);
}
{
hostRef.$flags$ &= ~8 /* HOST_FLAGS.isConstructingInstance */;
}
endNewInstance();
}
else {
// sync constructor component
Cstr = elm.constructor;
// wait for the CustomElementRegistry to mark the component as ready before setting `isWatchReady`. Otherwise,
// watchers may fire prematurely if `customElements.get()`/`customElements.whenDefined()` resolves _before_
// Stencil has completed instantiating the component.
customElements.whenDefined(cmpMeta.$tagName$).then(() => (hostRef.$flags$ |= 128 /* HOST_FLAGS.isWatchReady */));
}
if (Cstr.style) {
// this component has styles but we haven't registered them yet
let style = Cstr.style;
const scopeId = getScopeId(cmpMeta);
if (!styles.has(scopeId)) {
const endRegisterStyles = createTime('registerStyles', cmpMeta.$tagName$);
registerStyle(scopeId, style, !!(cmpMeta.$flags$ & 1 /* CMP_FLAGS.shadowDomEncapsulation */));
endRegisterStyles();
}
}
}
// we've successfully created a lazy instance
const ancestorComponent = hostRef.$ancestorComponent$;
const schedule = () => scheduleUpdate(hostRef, true);
if (ancestorComponent && ancestorComponent['s-rc']) {
// this is the initial load and this component it has an ancestor component
// but the ancestor component has NOT fired its will update lifecycle yet
// so let's just cool our jets and wait for the ancestor to continue first
// this will get fired off when the ancestor component
// finally gets around to rendering its lazy self
// fire off the initial update
ancestorComponent['s-rc'].push(schedule);
}
else {
schedule();
}
};
const fireConnectedCallback = (instance) => {
};
const connectedCallback = (elm) => {
if ((plt.$flags$ & 1 /* PLATFORM_FLAGS.isTmpDisconnected */) === 0) {
const hostRef = getHostRef(elm);
const cmpMeta = hostRef.$cmpMeta$;
const endConnected = createTime('connectedCallback', cmpMeta.$tagName$);
if (!(hostRef.$flags$ & 1 /* HOST_FLAGS.hasConnected */)) {
// first time this component has connected
hostRef.$flags$ |= 1 /* HOST_FLAGS.hasConnected */;
let hostId;
{
hostId = elm.getAttribute(HYDRATE_ID);
if (hostId) {
initializeClientHydrate(elm, cmpMeta.$tagName$, hostId, hostRef);
}
}
if (!hostId) {
// initUpdate
// if the slot polyfill is required we'll need to put some nodes
// in here to act as original content anchors as we move nodes around
// host element has been connected to the DOM
if ((// TODO(STENCIL-854): Remove code related to legacy shadowDomShim field
cmpMeta.$flags$ & (4 /* CMP_FLAGS.hasSlotRelocation */ | 8 /* CMP_FLAGS.needsShadowDomShim */))) {
setContentReference(elm);
}
}
{
// find the first ancestor component (if there is one) and register
// this component as one of the actively loading child components for its ancestor
let ancestorComponent = elm;
while ((ancestorComponent = ancestorComponent.parentNode || ancestorComponent.host)) {
// climb up the ancestors looking for the first
// component that hasn't finished its lifecycle update yet
if ((ancestorComponent.nodeType === 1 /* NODE_TYPE.ElementNode */ &&
ancestorComponent.hasAttribute('s-id') &&
ancestorComponent['s-p']) ||
ancestorComponent['s-p']) {
// we found this components first ancestor component
// keep a reference to this component's ancestor component
attachToAncestor(hostRef, (hostRef.$ancestorComponent$ = ancestorComponent));
break;
}
}
}
// Lazy properties
// https://developers.google.com/web/fundamentals/web-components/best-practices#lazy-properties
if (cmpMeta.$members$) {
Object.entries(cmpMeta.$members$).map(([memberName, [memberFlags]]) => {
if (memberFlags & 31 /* MEMBER_FLAGS.Prop */ && elm.hasOwnProperty(memberName)) {
const value = elm[memberName];
delete elm[memberName];
elm[memberName] = value;
}
});
}
{
initializeComponent(elm, hostRef, cmpMeta);
}
}
else {
// fire off connectedCallback() on component instance
if (hostRef === null || hostRef === void 0 ? void 0 : hostRef.$lazyInstance$) ;
else if (hostRef === null || hostRef === void 0 ? void 0 : hostRef.$onReadyPromise$) {
hostRef.$onReadyPromise$.then(() => fireConnectedCallback());
}
}
endConnected();
}
};
const setContentReference = (elm) => {
// only required when we're NOT using native shadow dom (slot)
// or this browser doesn't support native shadow dom
// and this host element was NOT created with SSR
// let's pick out the inner content for slot projection
// create a node to represent where the original
// content was first placed, which is useful later on
const contentRefElm = (elm['s-cr'] = doc.createComment(''));
contentRefElm['s-cn'] = true;
elm.insertBefore(contentRefElm, elm.firstChild);
};
const disconnectInstance = (instance) => {
};
const disconnectedCallback = async (elm) => {
if ((plt.$flags$ & 1 /* PLATFORM_FLAGS.isTmpDisconnected */) === 0) {
const hostRef = getHostRef(elm);
if (hostRef === null || hostRef === void 0 ? void 0 : hostRef.$lazyInstance$) ;
else if (hostRef === null || hostRef === void 0 ? void 0 : hostRef.$onReadyPromise$) {
hostRef.$onReadyPromise$.then(() => disconnectInstance());
}
}
};
const bootstrapLazy = (lazyBundles, options = {}) => {
var _a;
const endBootstrap = createTime();
const cmpTags = [];
const exclude = options.exclude || [];
const customElements = win.customElements;
const head = doc.head;
const metaCharset = /*@__PURE__*/ head.querySelector('meta[charset]');
const dataStyles = /*@__PURE__*/ doc.createElement('style');
const deferredConnectedCallbacks = [];
let appLoadFallback;
let isBootstrapping = true;
Object.assign(plt, options);
plt.$resourcesUrl$ = new URL(options.resourcesUrl || './', doc.baseURI).href;
{
// If the app is already hydrated there is not point to disable the
// async queue. This will improve the first input delay
plt.$flags$ |= 2 /* PLATFORM_FLAGS.appLoaded */;
}
let hasSlotRelocation = false;
lazyBundles.map((lazyBundle) => {
lazyBundle[1].map((compactMeta) => {
const cmpMeta = {
$flags$: compactMeta[0],
$tagName$: compactMeta[1],
$members$: compactMeta[2],
$listeners$: compactMeta[3],
};
// Check if we are using slots outside the shadow DOM in this component.
// We'll use this information later to add styles for `slot-fb` elements
if (cmpMeta.$flags$ & 4 /* CMP_FLAGS.hasSlotRelocation */) {
hasSlotRelocation = true;
}
{
cmpMeta.$members$ = compactMeta[2];
}
{
cmpMeta.$attrsToReflect$ = [];
}
const tagName = cmpMeta.$tagName$;
const HostElement = class extends HTMLElement {
// StencilLazyHost
constructor(self) {
// @ts-ignore
super(self);
self = this;
registerHost(self, cmpMeta);
}
connectedCallback() {
if (appLoadFallback) {
clearTimeout(appLoadFallback);
appLoadFallback = null;
}
if (isBootstrapping) {
// connectedCallback will be processed once all components have been registered
deferredConnectedCallbacks.push(this);
}
else {
plt.jmp(() => connectedCallback(this));
}
}
disconnectedCallback() {
plt.jmp(() => disconnectedCallback(this));
}
componentOnReady() {
return getHostRef(this).$onReadyPromise$;
}
};
cmpMeta.$lazyBundleId$ = lazyBundle[0];
if (!exclude.includes(tagName) && !customElements.get(tagName)) {
cmpTags.push(tagName);
customElements.define(tagName, proxyComponent(HostElement, cmpMeta, 1 /* PROXY_FLAGS.isElementConstructor */));
}
});
});
// Only bother generating CSS if we have components
// TODO(STENCIL-1118): Add test cases for CSS content based on conditionals
if (cmpTags.length > 0) {
// Add styles for `slot-fb` elements if any of our components are using slots outside the Shadow DOM
if (hasSlotRelocation) {
dataStyles.textContent += SLOT_FB_CSS;
}
// Add hydration styles
{
dataStyles.textContent += cmpTags + HYDRATED_CSS;
}
// If we have styles, add them to the DOM
if (dataStyles.innerHTML.length) {
dataStyles.setAttribute('data-styles', '');
// Apply CSP nonce to the style tag if it exists
const nonce = (_a = plt.$nonce$) !== null && _a !== void 0 ? _a : queryNonceMetaTagContent(doc);
if (nonce != null) {
dataStyles.setAttribute('nonce', nonce);
}
// Insert the styles into the document head
// NOTE: this _needs_ to happen last so we can ensure the nonce (and other attributes) are applied
head.insertBefore(dataStyles, metaCharset ? metaCharset.nextSibling : head.firstChild);
}
}
// Process deferred connectedCallbacks now all components have been registered
isBootstrapping = false;
if (deferredConnectedCallbacks.length) {
deferredConnectedCallbacks.map((host) => host.connectedCallback());
}
else {
{
plt.jmp(() => (appLoadFallback = setTimeout(appDidLoad, 30)));
}
}
// Fallback appLoad event
endBootstrap();
};
/**
* Assigns the given value to the nonce property on the runtime platform object.
* During runtime, this value is used to set the nonce attribute on all dynamically created script and style tags.
* @param nonce The value to be assigned to the platform nonce property.
* @returns void
*/
const setNonce = (nonce) => (plt.$nonce$ = nonce);
/**
* A WeakMap mapping runtime component references to their corresponding host reference
* instances.
*
* **Note**: If we're in an HMR context we need to store a reference to this
* value on `window` in order to maintain the mapping of {@link d.RuntimeRef}
* to {@link d.HostRef} across HMR updates.
*
* This is necessary because when HMR updates for a component are processed by
* the browser-side dev server client the JS bundle for that component is
* re-fetched. Since the module containing {@link hostRefs} is included in
* that bundle, if we do not store a reference to it the new iteration of the
* component will not have access to the previous hostRef map, leading to a
* bug where the new version of the component cannot properly initialize.
*/
const hostRefs = new WeakMap();
/**
* Given a {@link d.RuntimeRef} retrieve the corresponding {@link d.HostRef}
*
* @param ref the runtime ref of interest
* @returns the Host reference (if found) or undefined
*/
const getHostRef = (ref) => hostRefs.get(ref);
/**
* Register a lazy instance with the {@link hostRefs} object so it's
* corresponding {@link d.HostRef} can be retrieved later.
*
* @param lazyInstance the lazy instance of interest
* @param hostRef that instances `HostRef` object
* @returns a reference to the host ref WeakMap
*/
const registerInstance = (lazyInstance, hostRef) => hostRefs.set((hostRef.$lazyInstance$ = lazyInstance), hostRef);
/**
* Register a host element for a Stencil component, setting up various metadata
* and callbacks based on {@link BUILD} flags as well as the component's runtime
* metadata.
*
* @param hostElement the host element to register
* @param cmpMeta runtime metadata for that component
* @returns a reference to the host ref WeakMap
*/
const registerHost = (hostElement, cmpMeta) => {
const hostRef = {
$flags$: 0,
$hostElement$: hostElement,
$cmpMeta$: cmpMeta,
$instanceValues$: new Map(),
};
{
hostRef.$onReadyPromise$ = new Promise((r) => (hostRef.$onReadyResolve$ = r));
hostElement['s-p'] = [];
hostElement['s-rc'] = [];
}
return hostRefs.set(hostElement, hostRef);
};
const isMemberInElement = (elm, memberName) => memberName in elm;
const consoleError = (e, el) => (0, console.error)(e, el);
const cmpModules = /*@__PURE__*/ new Map();
const loadModule = (cmpMeta, hostRef, hmrVersionId) => {
// loadModuleImport
const exportName = cmpMeta.$tagName$.replace(/-/g, '_');
const bundleId = cmpMeta.$lazyBundleId$;
const module = cmpModules.get(bundleId) ;
if (module) {
return module[exportName];
}
/*!__STENCIL_STATIC_IMPORT_SWITCH__*/
return Promise.resolve().then(function () { return /*#__PURE__*/_interopNamespace(require(
/* @vite-ignore */
/* webpackInclude: /\.entry\.js$/ */
/* webpackExclude: /\.system\.entry\.js$/ */
/* webpackMode: "lazy" */
`./${bundleId}.entry.js${''}`)); }).then((importedModule) => {
{
cmpModules.set(bundleId, importedModule);
}
return importedModule[exportName];
}, consoleError);
};
const styles = /*@__PURE__*/ new Map();
const win = typeof window !== 'undefined' ? window : {};
const doc = win.document || { head: {} };
const plt = {
$flags$: 0,
$resourcesUrl$: '',
jmp: (h) => h(),
raf: (h) => requestAnimationFrame(h),
ael: (el, eventName, listener, opts) => el.addEventListener(eventName, listener, opts),
rel: (el, eventName, listener, opts) => el.removeEventListener(eventName, listener, opts),
ce: (eventName, opts) => new CustomEvent(eventName, opts),
};
const supportsShadow =
// TODO(STENCIL-854): Remove code related to legacy shadowDomShim field
true;
const promiseResolve = (v) => Promise.resolve(v);
const supportsConstructableStylesheets = /*@__PURE__*/ (() => {
try {
new CSSStyleSheet();
return typeof new CSSStyleSheet().replaceSync === 'function';
}
catch (e) { }
return false;
})()
;
const queueDomReads = [];
const queueDomWrites = [];
const queueTask = (queue, write) => (cb) => {
queue.push(cb);
if (!queuePending) {
queuePending = true;
if (write && plt.$flags$ & 4 /* PLATFORM_FLAGS.queueSync */) {
nextTick(flush);
}
else {
plt.raf(flush);
}
}
};
const consume = (queue) => {
for (let i = 0; i < queue.length; i++) {
try {
queue[i](performance.now());
}
catch (e) {
consoleError(e);
}
}
queue.length = 0;
};
const flush = () => {
// always force a bunch of medium callbacks to run, but still have
// a throttle on how many can run in a certain time
// DOM READS!!!
consume(queueDomReads);
// DOM WRITES!!!
{
consume(queueDomWrites);
if ((queuePending = queueDomReads.length > 0)) {
// still more to do yet, but we've run out of time
// let's let this thing cool off and try again in the next tick
plt.raf(flush);
}
}
};
const nextTick = (cb) => promiseResolve().then(cb);
const writeTask = /*@__PURE__*/ queueTask(queueDomWrites, true);
exports.Host = Host;
exports.bootstrapLazy = bootstrapLazy;
exports.h = h;
exports.promiseResolve = promiseResolve;
exports.registerInstance = registerInstance;
exports.setNonce = setNonce;