From bce557cc2dc767628bed6aac87301a1be7c5431b Mon Sep 17 00:00:00 2001 From: rxliuli Date: Tue, 4 Nov 2025 05:03:50 +0800 Subject: init commit --- .../svelte/src/runtime/internal/Component.js | 524 ++++++++ .../svelte/src/runtime/internal/await_block.js | 100 ++ .../src/runtime/internal/disclose-version/index.js | 5 + node_modules/svelte/src/runtime/internal/dom.js | 1251 ++++++++++++++++++++ node_modules/svelte/src/runtime/internal/each.js | 143 +++ .../svelte/src/runtime/internal/environment.js | 19 + .../svelte/src/runtime/internal/globals.js | 8 + .../svelte/src/runtime/internal/lifecycle.js | 183 +++ node_modules/svelte/src/runtime/internal/loop.js | 45 + .../svelte/src/runtime/internal/scheduler.js | 135 +++ node_modules/svelte/src/runtime/internal/spread.js | 35 + .../svelte/src/runtime/internal/style_manager.js | 99 ++ .../svelte/src/runtime/internal/transitions.js | 461 ++++++++ node_modules/svelte/src/runtime/internal/utils.js | 291 +++++ 14 files changed, 3299 insertions(+) create mode 100644 node_modules/svelte/src/runtime/internal/Component.js create mode 100644 node_modules/svelte/src/runtime/internal/await_block.js create mode 100644 node_modules/svelte/src/runtime/internal/disclose-version/index.js create mode 100644 node_modules/svelte/src/runtime/internal/dom.js create mode 100644 node_modules/svelte/src/runtime/internal/each.js create mode 100644 node_modules/svelte/src/runtime/internal/environment.js create mode 100644 node_modules/svelte/src/runtime/internal/globals.js create mode 100644 node_modules/svelte/src/runtime/internal/lifecycle.js create mode 100644 node_modules/svelte/src/runtime/internal/loop.js create mode 100644 node_modules/svelte/src/runtime/internal/scheduler.js create mode 100644 node_modules/svelte/src/runtime/internal/spread.js create mode 100644 node_modules/svelte/src/runtime/internal/style_manager.js create mode 100644 node_modules/svelte/src/runtime/internal/transitions.js create mode 100644 node_modules/svelte/src/runtime/internal/utils.js (limited to 'node_modules/svelte/src/runtime/internal') diff --git a/node_modules/svelte/src/runtime/internal/Component.js b/node_modules/svelte/src/runtime/internal/Component.js new file mode 100644 index 0000000..bc2c83d --- /dev/null +++ b/node_modules/svelte/src/runtime/internal/Component.js @@ -0,0 +1,524 @@ +import { + add_render_callback, + flush, + flush_render_callbacks, + schedule_update, + dirty_components +} from './scheduler.js'; +import { current_component, set_current_component } from './lifecycle.js'; +import { blank_object, is_empty, is_function, run, run_all, noop } from './utils.js'; +import { + children, + detach, + start_hydrating, + end_hydrating, + get_custom_elements_slots, + insert, + element, + attr +} from './dom.js'; +import { transition_in } from './transitions.js'; + +/** @returns {void} */ +export function bind(component, name, callback) { + const index = component.$$.props[name]; + if (index !== undefined) { + component.$$.bound[index] = callback; + callback(component.$$.ctx[index]); + } +} + +/** @returns {void} */ +export function create_component(block) { + block && block.c(); +} + +/** @returns {void} */ +export function claim_component(block, parent_nodes) { + block && block.l(parent_nodes); +} + +/** @returns {void} */ +export function mount_component(component, target, anchor) { + const { fragment, after_update } = component.$$; + fragment && fragment.m(target, anchor); + // onMount happens before the initial afterUpdate + add_render_callback(() => { + const new_on_destroy = component.$$.on_mount.map(run).filter(is_function); + // if the component was destroyed immediately + // it will update the `$$.on_destroy` reference to `null`. + // the destructured on_destroy may still reference to the old array + if (component.$$.on_destroy) { + component.$$.on_destroy.push(...new_on_destroy); + } else { + // Edge case - component was destroyed immediately, + // most likely as a result of a binding initialising + run_all(new_on_destroy); + } + component.$$.on_mount = []; + }); + after_update.forEach(add_render_callback); +} + +/** @returns {void} */ +export function destroy_component(component, detaching) { + const $$ = component.$$; + if ($$.fragment !== null) { + flush_render_callbacks($$.after_update); + run_all($$.on_destroy); + $$.fragment && $$.fragment.d(detaching); + // TODO null out other refs, including component.$$ (but need to + // preserve final state?) + $$.on_destroy = $$.fragment = null; + $$.ctx = []; + } +} + +/** @returns {void} */ +function make_dirty(component, i) { + if (component.$$.dirty[0] === -1) { + dirty_components.push(component); + schedule_update(); + component.$$.dirty.fill(0); + } + component.$$.dirty[(i / 31) | 0] |= 1 << i % 31; +} + +// TODO: Document the other params +/** + * @param {SvelteComponent} component + * @param {import('./public.js').ComponentConstructorOptions} options + * + * @param {import('./utils.js')['not_equal']} not_equal Used to compare props and state values. + * @param {(target: Element | ShadowRoot) => void} [append_styles] Function that appends styles to the DOM when the component is first initialised. + * This will be the `add_css` function from the compiled component. + * + * @returns {void} + */ +export function init( + component, + options, + instance, + create_fragment, + not_equal, + props, + append_styles = null, + dirty = [-1] +) { + const parent_component = current_component; + set_current_component(component); + /** @type {import('./private.js').T$$} */ + const $$ = (component.$$ = { + fragment: null, + ctx: [], + // state + props, + update: noop, + not_equal, + bound: blank_object(), + // lifecycle + on_mount: [], + on_destroy: [], + on_disconnect: [], + before_update: [], + after_update: [], + context: new Map(options.context || (parent_component ? parent_component.$$.context : [])), + // everything else + callbacks: blank_object(), + dirty, + skip_bound: false, + root: options.target || parent_component.$$.root + }); + append_styles && append_styles($$.root); + let ready = false; + $$.ctx = instance + ? instance(component, options.props || {}, (i, ret, ...rest) => { + const value = rest.length ? rest[0] : ret; + if ($$.ctx && not_equal($$.ctx[i], ($$.ctx[i] = value))) { + if (!$$.skip_bound && $$.bound[i]) $$.bound[i](value); + if (ready) make_dirty(component, i); + } + return ret; + }) + : []; + $$.update(); + ready = true; + run_all($$.before_update); + // `false` as a special case of no DOM component + $$.fragment = create_fragment ? create_fragment($$.ctx) : false; + if (options.target) { + if (options.hydrate) { + start_hydrating(); + // TODO: what is the correct type here? + // @ts-expect-error + const nodes = children(options.target); + $$.fragment && $$.fragment.l(nodes); + nodes.forEach(detach); + } else { + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + $$.fragment && $$.fragment.c(); + } + if (options.intro) transition_in(component.$$.fragment); + mount_component(component, options.target, options.anchor); + end_hydrating(); + flush(); + } + set_current_component(parent_component); +} + +export let SvelteElement; + +if (typeof HTMLElement === 'function') { + SvelteElement = class extends HTMLElement { + /** The Svelte component constructor */ + $$ctor; + /** Slots */ + $$s; + /** The Svelte component instance */ + $$c; + /** Whether or not the custom element is connected */ + $$cn = false; + /** Component props data */ + $$d = {}; + /** `true` if currently in the process of reflecting component props back to attributes */ + $$r = false; + /** @type {Record} Props definition (name, reflected, type etc) */ + $$p_d = {}; + /** @type {Record} Event listeners */ + $$l = {}; + /** @type {Map} Event listener unsubscribe functions */ + $$l_u = new Map(); + + constructor($$componentCtor, $$slots, use_shadow_dom) { + super(); + this.$$ctor = $$componentCtor; + this.$$s = $$slots; + if (use_shadow_dom) { + this.attachShadow({ mode: 'open' }); + } + } + + addEventListener(type, listener, options) { + // We can't determine upfront if the event is a custom event or not, so we have to + // listen to both. If someone uses a custom event with the same name as a regular + // browser event, this fires twice - we can't avoid that. + this.$$l[type] = this.$$l[type] || []; + this.$$l[type].push(listener); + if (this.$$c) { + const unsub = this.$$c.$on(type, listener); + this.$$l_u.set(listener, unsub); + } + super.addEventListener(type, listener, options); + } + + removeEventListener(type, listener, options) { + super.removeEventListener(type, listener, options); + if (this.$$c) { + const unsub = this.$$l_u.get(listener); + if (unsub) { + unsub(); + this.$$l_u.delete(listener); + } + } + if (this.$$l[type]) { + const idx = this.$$l[type].indexOf(listener); + if (idx >= 0) { + this.$$l[type].splice(idx, 1); + } + } + } + + async connectedCallback() { + this.$$cn = true; + if (!this.$$c) { + // We wait one tick to let possible child slot elements be created/mounted + await Promise.resolve(); + if (!this.$$cn || this.$$c) { + return; + } + function create_slot(name) { + return () => { + let node; + const obj = { + c: function create() { + node = element('slot'); + if (name !== 'default') { + attr(node, 'name', name); + } + }, + /** + * @param {HTMLElement} target + * @param {HTMLElement} [anchor] + */ + m: function mount(target, anchor) { + insert(target, node, anchor); + }, + d: function destroy(detaching) { + if (detaching) { + detach(node); + } + } + }; + return obj; + }; + } + const $$slots = {}; + const existing_slots = get_custom_elements_slots(this); + for (const name of this.$$s) { + if (name in existing_slots) { + $$slots[name] = [create_slot(name)]; + } + } + for (const attribute of this.attributes) { + // this.$$data takes precedence over this.attributes + const name = this.$$g_p(attribute.name); + if (!(name in this.$$d)) { + this.$$d[name] = get_custom_element_value(name, attribute.value, this.$$p_d, 'toProp'); + } + } + // Port over props that were set programmatically before ce was initialized + for (const key in this.$$p_d) { + if (!(key in this.$$d) && this[key] !== undefined) { + this.$$d[key] = this[key]; // don't transform, these were set through JavaScript + delete this[key]; // remove the property that shadows the getter/setter + } + } + this.$$c = new this.$$ctor({ + target: this.shadowRoot || this, + props: { + ...this.$$d, + $$slots, + $$scope: { + ctx: [] + } + } + }); + + // Reflect component props as attributes + const reflect_attributes = () => { + this.$$r = true; + for (const key in this.$$p_d) { + this.$$d[key] = this.$$c.$$.ctx[this.$$c.$$.props[key]]; + if (this.$$p_d[key].reflect) { + const attribute_value = get_custom_element_value( + key, + this.$$d[key], + this.$$p_d, + 'toAttribute' + ); + if (attribute_value == null) { + this.removeAttribute(this.$$p_d[key].attribute || key); + } else { + this.setAttribute(this.$$p_d[key].attribute || key, attribute_value); + } + } + } + this.$$r = false; + }; + this.$$c.$$.after_update.push(reflect_attributes); + reflect_attributes(); // once initially because after_update is added too late for first render + + for (const type in this.$$l) { + for (const listener of this.$$l[type]) { + const unsub = this.$$c.$on(type, listener); + this.$$l_u.set(listener, unsub); + } + } + this.$$l = {}; + } + } + + // We don't need this when working within Svelte code, but for compatibility of people using this outside of Svelte + // and setting attributes through setAttribute etc, this is helpful + attributeChangedCallback(attr, _oldValue, newValue) { + if (this.$$r) return; + attr = this.$$g_p(attr); + this.$$d[attr] = get_custom_element_value(attr, newValue, this.$$p_d, 'toProp'); + this.$$c?.$set({ [attr]: this.$$d[attr] }); + } + + disconnectedCallback() { + this.$$cn = false; + // In a microtask, because this could be a move within the DOM + Promise.resolve().then(() => { + if (!this.$$cn && this.$$c) { + this.$$c.$destroy(); + this.$$c = undefined; + } + }); + } + + $$g_p(attribute_name) { + return ( + Object.keys(this.$$p_d).find( + (key) => + this.$$p_d[key].attribute === attribute_name || + (!this.$$p_d[key].attribute && key.toLowerCase() === attribute_name) + ) || attribute_name + ); + } + }; +} + +/** + * @param {string} prop + * @param {any} value + * @param {Record} props_definition + * @param {'toAttribute' | 'toProp'} [transform] + */ +function get_custom_element_value(prop, value, props_definition, transform) { + const type = props_definition[prop]?.type; + value = type === 'Boolean' && typeof value !== 'boolean' ? value != null : value; + if (!transform || !props_definition[prop]) { + return value; + } else if (transform === 'toAttribute') { + switch (type) { + case 'Object': + case 'Array': + return value == null ? null : JSON.stringify(value); + case 'Boolean': + return value ? '' : null; + case 'Number': + return value == null ? null : value; + default: + return value; + } + } else { + switch (type) { + case 'Object': + case 'Array': + return value && JSON.parse(value); + case 'Boolean': + return value; // conversion already handled above + case 'Number': + return value != null ? +value : value; + default: + return value; + } + } +} + +/** + * @internal + * + * Turn a Svelte component into a custom element. + * @param {import('./public.js').ComponentType} Component A Svelte component constructor + * @param {Record} props_definition The props to observe + * @param {string[]} slots The slots to create + * @param {string[]} accessors Other accessors besides the ones for props the component has + * @param {boolean} use_shadow_dom Whether to use shadow DOM + * @param {(ce: new () => HTMLElement) => new () => HTMLElement} [extend] + */ +export function create_custom_element( + Component, + props_definition, + slots, + accessors, + use_shadow_dom, + extend +) { + let Class = class extends SvelteElement { + constructor() { + super(Component, slots, use_shadow_dom); + this.$$p_d = props_definition; + } + static get observedAttributes() { + return Object.keys(props_definition).map((key) => + (props_definition[key].attribute || key).toLowerCase() + ); + } + }; + Object.keys(props_definition).forEach((prop) => { + Object.defineProperty(Class.prototype, prop, { + get() { + return this.$$c && prop in this.$$c ? this.$$c[prop] : this.$$d[prop]; + }, + set(value) { + value = get_custom_element_value(prop, value, props_definition); + this.$$d[prop] = value; + this.$$c?.$set({ [prop]: value }); + } + }); + }); + accessors.forEach((accessor) => { + Object.defineProperty(Class.prototype, accessor, { + get() { + return this.$$c?.[accessor]; + } + }); + }); + if (extend) { + // @ts-expect-error - assigning here is fine + Class = extend(Class); + } + Component.element = /** @type {any} */ (Class); + return Class; +} + +/** + * Base class for Svelte components. Used when dev=false. + * + * @template {Record} [Props=any] + * @template {Record} [Events=any] + */ +export class SvelteComponent { + /** + * ### PRIVATE API + * + * Do not use, may change at any time + * + * @type {any} + */ + $$ = undefined; + /** + * ### PRIVATE API + * + * Do not use, may change at any time + * + * @type {any} + */ + $$set = undefined; + + /** @returns {void} */ + $destroy() { + destroy_component(this, 1); + this.$destroy = noop; + } + + /** + * @template {Extract} K + * @param {K} type + * @param {((e: Events[K]) => void) | null | undefined} callback + * @returns {() => void} + */ + $on(type, callback) { + if (!is_function(callback)) { + return noop; + } + const callbacks = this.$$.callbacks[type] || (this.$$.callbacks[type] = []); + callbacks.push(callback); + return () => { + const index = callbacks.indexOf(callback); + if (index !== -1) callbacks.splice(index, 1); + }; + } + + /** + * @param {Partial} props + * @returns {void} + */ + $set(props) { + if (this.$$set && !is_empty(props)) { + this.$$.skip_bound = true; + this.$$set(props); + this.$$.skip_bound = false; + } + } +} + +/** + * @typedef {Object} CustomElementPropDefinition + * @property {string} [attribute] + * @property {boolean} [reflect] + * @property {'String'|'Boolean'|'Number'|'Array'|'Object'} [type] + */ diff --git a/node_modules/svelte/src/runtime/internal/await_block.js b/node_modules/svelte/src/runtime/internal/await_block.js new file mode 100644 index 0000000..fed0f10 --- /dev/null +++ b/node_modules/svelte/src/runtime/internal/await_block.js @@ -0,0 +1,100 @@ +import { is_promise } from './utils.js'; +import { check_outros, group_outros, transition_in, transition_out } from './transitions.js'; +import { flush } from './scheduler.js'; +import { get_current_component, set_current_component } from './lifecycle.js'; + +/** + * @template T + * @param {Promise} promise + * @param {import('./private.js').PromiseInfo} info + * @returns {boolean} + */ +export function handle_promise(promise, info) { + const token = (info.token = {}); + /** + * @param {import('./private.js').FragmentFactory} type + * @param {0 | 1 | 2} index + * @param {number} [key] + * @param {any} [value] + * @returns {void} + */ + function update(type, index, key, value) { + if (info.token !== token) return; + info.resolved = value; + let child_ctx = info.ctx; + if (key !== undefined) { + child_ctx = child_ctx.slice(); + child_ctx[key] = value; + } + const block = type && (info.current = type)(child_ctx); + let needs_flush = false; + if (info.block) { + if (info.blocks) { + info.blocks.forEach((block, i) => { + if (i !== index && block) { + group_outros(); + transition_out(block, 1, 1, () => { + if (info.blocks[i] === block) { + info.blocks[i] = null; + } + }); + check_outros(); + } + }); + } else { + info.block.d(1); + } + block.c(); + transition_in(block, 1); + block.m(info.mount(), info.anchor); + needs_flush = true; + } + info.block = block; + if (info.blocks) info.blocks[index] = block; + if (needs_flush) { + flush(); + } + } + if (is_promise(promise)) { + const current_component = get_current_component(); + promise.then( + (value) => { + set_current_component(current_component); + update(info.then, 1, info.value, value); + set_current_component(null); + }, + (error) => { + set_current_component(current_component); + update(info.catch, 2, info.error, error); + set_current_component(null); + if (!info.hasCatch) { + throw error; + } + } + ); + // if we previously had a then/catch block, destroy it + if (info.current !== info.pending) { + update(info.pending, 0); + return true; + } + } else { + if (info.current !== info.then) { + update(info.then, 1, info.value, promise); + return true; + } + info.resolved = /** @type {T} */ (promise); + } +} + +/** @returns {void} */ +export function update_await_block_branch(info, ctx, dirty) { + const child_ctx = ctx.slice(); + const { resolved } = info; + if (info.current === info.then) { + child_ctx[info.value] = resolved; + } + if (info.current === info.catch) { + child_ctx[info.error] = resolved; + } + info.block.p(child_ctx, dirty); +} diff --git a/node_modules/svelte/src/runtime/internal/disclose-version/index.js b/node_modules/svelte/src/runtime/internal/disclose-version/index.js new file mode 100644 index 0000000..7cda592 --- /dev/null +++ b/node_modules/svelte/src/runtime/internal/disclose-version/index.js @@ -0,0 +1,5 @@ +import { PUBLIC_VERSION } from '../../../shared/version.js'; + +if (typeof window !== 'undefined') + // @ts-ignore + (window.__svelte || (window.__svelte = { v: new Set() })).v.add(PUBLIC_VERSION); diff --git a/node_modules/svelte/src/runtime/internal/dom.js b/node_modules/svelte/src/runtime/internal/dom.js new file mode 100644 index 0000000..37cbb31 --- /dev/null +++ b/node_modules/svelte/src/runtime/internal/dom.js @@ -0,0 +1,1251 @@ +import { contenteditable_truthy_values, has_prop } from './utils.js'; + +import { ResizeObserverSingleton } from './ResizeObserverSingleton.js'; + +// Track which nodes are claimed during hydration. Unclaimed nodes can then be removed from the DOM +// at the end of hydration without touching the remaining nodes. +let is_hydrating = false; + +/** + * @returns {void} + */ +export function start_hydrating() { + is_hydrating = true; +} + +/** + * @returns {void} + */ +export function end_hydrating() { + is_hydrating = false; +} + +/** + * @param {number} low + * @param {number} high + * @param {(index: number) => number} key + * @param {number} value + * @returns {number} + */ +function upper_bound(low, high, key, value) { + // Return first index of value larger than input value in the range [low, high) + while (low < high) { + const mid = low + ((high - low) >> 1); + if (key(mid) <= value) { + low = mid + 1; + } else { + high = mid; + } + } + return low; +} + +/** + * @param {NodeEx} target + * @returns {void} + */ +function init_hydrate(target) { + if (target.hydrate_init) return; + target.hydrate_init = true; + // We know that all children have claim_order values since the unclaimed have been detached if target is not + + let children = /** @type {ArrayLike} */ (target.childNodes); + // If target is , there may be children without claim_order + if (target.nodeName === 'HEAD') { + const my_children = []; + for (let i = 0; i < children.length; i++) { + const node = children[i]; + if (node.claim_order !== undefined) { + my_children.push(node); + } + } + children = my_children; + } + /* + * Reorder claimed children optimally. + * We can reorder claimed children optimally by finding the longest subsequence of + * nodes that are already claimed in order and only moving the rest. The longest + * subsequence of nodes that are claimed in order can be found by + * computing the longest increasing subsequence of .claim_order values. + * + * This algorithm is optimal in generating the least amount of reorder operations + * possible. + * + * Proof: + * We know that, given a set of reordering operations, the nodes that do not move + * always form an increasing subsequence, since they do not move among each other + * meaning that they must be already ordered among each other. Thus, the maximal + * set of nodes that do not move form a longest increasing subsequence. + */ + // Compute longest increasing subsequence + // m: subsequence length j => index k of smallest value that ends an increasing subsequence of length j + const m = new Int32Array(children.length + 1); + // Predecessor indices + 1 + const p = new Int32Array(children.length); + m[0] = -1; + let longest = 0; + for (let i = 0; i < children.length; i++) { + const current = children[i].claim_order; + // Find the largest subsequence length such that it ends in a value less than our current value + // upper_bound returns first greater value, so we subtract one + // with fast path for when we are on the current longest subsequence + const seq_len = + (longest > 0 && children[m[longest]].claim_order <= current + ? longest + 1 + : upper_bound(1, longest, (idx) => children[m[idx]].claim_order, current)) - 1; + p[i] = m[seq_len] + 1; + const new_len = seq_len + 1; + // We can guarantee that current is the smallest value. Otherwise, we would have generated a longer sequence. + m[new_len] = i; + longest = Math.max(new_len, longest); + } + // The longest increasing subsequence of nodes (initially reversed) + + /** + * @type {NodeEx2[]} + */ + const lis = []; + // The rest of the nodes, nodes that will be moved + + /** + * @type {NodeEx2[]} + */ + const to_move = []; + let last = children.length - 1; + for (let cur = m[longest] + 1; cur != 0; cur = p[cur - 1]) { + lis.push(children[cur - 1]); + for (; last >= cur; last--) { + to_move.push(children[last]); + } + last--; + } + for (; last >= 0; last--) { + to_move.push(children[last]); + } + lis.reverse(); + // We sort the nodes being moved to guarantee that their insertion order matches the claim order + to_move.sort((a, b) => a.claim_order - b.claim_order); + // Finally, we move the nodes + for (let i = 0, j = 0; i < to_move.length; i++) { + while (j < lis.length && to_move[i].claim_order >= lis[j].claim_order) { + j++; + } + const anchor = j < lis.length ? lis[j] : null; + target.insertBefore(to_move[i], anchor); + } +} + +/** + * @param {Node} target + * @param {Node} node + * @returns {void} + */ +export function append(target, node) { + target.appendChild(node); +} + +/** + * @param {Node} target + * @param {string} style_sheet_id + * @param {string} styles + * @returns {void} + */ +export function append_styles(target, style_sheet_id, styles) { + const append_styles_to = get_root_for_style(target); + if (!append_styles_to.getElementById(style_sheet_id)) { + const style = element('style'); + style.id = style_sheet_id; + style.textContent = styles; + append_stylesheet(append_styles_to, style); + } +} + +/** + * @param {Node} node + * @returns {ShadowRoot | Document} + */ +export function get_root_for_style(node) { + if (!node) return document; + const root = node.getRootNode ? node.getRootNode() : node.ownerDocument; + if (root && /** @type {ShadowRoot} */ (root).host) { + return /** @type {ShadowRoot} */ (root); + } + return node.ownerDocument; +} + +/** + * @param {Node} node + * @returns {CSSStyleSheet} + */ +export function append_empty_stylesheet(node) { + const style_element = element('style'); + // For transitions to work without 'style-src: unsafe-inline' Content Security Policy, + // these empty tags need to be allowed with a hash as a workaround until we move to the Web Animations API. + // Using the hash for the empty string (for an empty tag) works in all browsers except Safari. + // So as a workaround for the workaround, when we append empty style tags we set their content to /* empty */. + // The hash 'sha256-9OlNO0DNEeaVzHL4RZwCLsBHA8WBQ8toBp/4F5XV2nc=' will then work even in Safari. + style_element.textContent = '/* empty */'; + append_stylesheet(get_root_for_style(node), style_element); + return style_element.sheet; +} + +/** + * @param {ShadowRoot | Document} node + * @param {HTMLStyleElement} style + * @returns {CSSStyleSheet} + */ +function append_stylesheet(node, style) { + append(/** @type {Document} */ (node).head || node, style); + return style.sheet; +} + +/** + * @param {NodeEx} target + * @param {NodeEx} node + * @returns {void} + */ +export function append_hydration(target, node) { + if (is_hydrating) { + init_hydrate(target); + if ( + target.actual_end_child === undefined || + (target.actual_end_child !== null && target.actual_end_child.parentNode !== target) + ) { + target.actual_end_child = target.firstChild; + } + // Skip nodes of undefined ordering + while (target.actual_end_child !== null && target.actual_end_child.claim_order === undefined) { + target.actual_end_child = target.actual_end_child.nextSibling; + } + if (node !== target.actual_end_child) { + // We only insert if the ordering of this node should be modified or the parent node is not target + if (node.claim_order !== undefined || node.parentNode !== target) { + target.insertBefore(node, target.actual_end_child); + } + } else { + target.actual_end_child = node.nextSibling; + } + } else if (node.parentNode !== target || node.nextSibling !== null) { + target.appendChild(node); + } +} + +/** + * @param {Node} target + * @param {Node} node + * @param {Node} [anchor] + * @returns {void} + */ +export function insert(target, node, anchor) { + target.insertBefore(node, anchor || null); +} + +/** + * @param {NodeEx} target + * @param {NodeEx} node + * @param {NodeEx} [anchor] + * @returns {void} + */ +export function insert_hydration(target, node, anchor) { + if (is_hydrating && !anchor) { + append_hydration(target, node); + } else if (node.parentNode !== target || node.nextSibling != anchor) { + target.insertBefore(node, anchor || null); + } +} + +/** + * @param {Node} node + * @returns {void} + */ +export function detach(node) { + if (node.parentNode) { + node.parentNode.removeChild(node); + } +} + +/** + * @returns {void} */ +export function destroy_each(iterations, detaching) { + for (let i = 0; i < iterations.length; i += 1) { + if (iterations[i]) iterations[i].d(detaching); + } +} + +/** + * @template {keyof HTMLElementTagNameMap} K + * @param {K} name + * @returns {HTMLElementTagNameMap[K]} + */ +export function element(name) { + return document.createElement(name); +} + +/** + * @template {keyof HTMLElementTagNameMap} K + * @param {K} name + * @param {string} is + * @returns {HTMLElementTagNameMap[K]} + */ +export function element_is(name, is) { + return document.createElement(name, { is }); +} + +/** + * @template T + * @template {keyof T} K + * @param {T} obj + * @param {K[]} exclude + * @returns {Pick>} + */ +export function object_without_properties(obj, exclude) { + const target = /** @type {Pick>} */ ({}); + for (const k in obj) { + if ( + has_prop(obj, k) && + // @ts-ignore + exclude.indexOf(k) === -1 + ) { + // @ts-ignore + target[k] = obj[k]; + } + } + return target; +} + +/** + * @template {keyof SVGElementTagNameMap} K + * @param {K} name + * @returns {SVGElement} + */ +export function svg_element(name) { + return document.createElementNS('http://www.w3.org/2000/svg', name); +} + +/** + * @param {string} data + * @returns {Text} + */ +export function text(data) { + return document.createTextNode(data); +} + +/** + * @returns {Text} */ +export function space() { + return text(' '); +} + +/** + * @returns {Text} */ +export function empty() { + return text(''); +} + +/** + * @param {string} content + * @returns {Comment} + */ +export function comment(content) { + return document.createComment(content); +} + +/** + * @param {EventTarget} node + * @param {string} event + * @param {EventListenerOrEventListenerObject} handler + * @param {boolean | AddEventListenerOptions | EventListenerOptions} [options] + * @returns {() => void} + */ +export function listen(node, event, handler, options) { + node.addEventListener(event, handler, options); + return () => node.removeEventListener(event, handler, options); +} + +/** + * @returns {(event: any) => any} */ +export function prevent_default(fn) { + return function (event) { + event.preventDefault(); + // @ts-ignore + return fn.call(this, event); + }; +} + +/** + * @returns {(event: any) => any} */ +export function stop_propagation(fn) { + return function (event) { + event.stopPropagation(); + // @ts-ignore + return fn.call(this, event); + }; +} + +/** + * @returns {(event: any) => any} */ +export function stop_immediate_propagation(fn) { + return function (event) { + event.stopImmediatePropagation(); + // @ts-ignore + return fn.call(this, event); + }; +} + +/** + * @returns {(event: any) => void} */ +export function self(fn) { + return function (event) { + // @ts-ignore + if (event.target === this) fn.call(this, event); + }; +} + +/** + * @returns {(event: any) => void} */ +export function trusted(fn) { + return function (event) { + // @ts-ignore + if (event.isTrusted) fn.call(this, event); + }; +} + +/** + * @param {Element} node + * @param {string} attribute + * @param {string} [value] + * @returns {void} + */ +export function attr(node, attribute, value) { + if (value == null) node.removeAttribute(attribute); + else if (node.getAttribute(attribute) !== value) node.setAttribute(attribute, value); +} +/** + * List of attributes that should always be set through the attr method, + * because updating them through the property setter doesn't work reliably. + * In the example of `width`/`height`, the problem is that the setter only + * accepts numeric values, but the attribute can also be set to a string like `50%`. + * If this list becomes too big, rethink this approach. + */ +const always_set_through_set_attribute = ['width', 'height']; + +/** + * @param {Element & ElementCSSInlineStyle} node + * @param {{ [x: string]: string }} attributes + * @returns {void} + */ +export function set_attributes(node, attributes) { + // @ts-ignore + const descriptors = Object.getOwnPropertyDescriptors(node.__proto__); + for (const key in attributes) { + if (attributes[key] == null) { + node.removeAttribute(key); + } else if (key === 'style') { + node.style.cssText = attributes[key]; + } else if (key === '__value') { + /** @type {any} */ (node).value = node[key] = attributes[key]; + } else if ( + descriptors[key] && + descriptors[key].set && + always_set_through_set_attribute.indexOf(key) === -1 + ) { + node[key] = attributes[key]; + } else { + attr(node, key, attributes[key]); + } + } +} + +/** + * @param {Element & ElementCSSInlineStyle} node + * @param {{ [x: string]: string }} attributes + * @returns {void} + */ +export function set_svg_attributes(node, attributes) { + for (const key in attributes) { + attr(node, key, attributes[key]); + } +} + +/** + * @param {Record} data_map + * @returns {void} + */ +export function set_custom_element_data_map(node, data_map) { + Object.keys(data_map).forEach((key) => { + set_custom_element_data(node, key, data_map[key]); + }); +} + +/** + * @returns {void} */ +export function set_custom_element_data(node, prop, value) { + const lower = prop.toLowerCase(); // for backwards compatibility with existing behavior we do lowercase first + if (lower in node) { + node[lower] = typeof node[lower] === 'boolean' && value === '' ? true : value; + } else if (prop in node) { + node[prop] = typeof node[prop] === 'boolean' && value === '' ? true : value; + } else { + attr(node, prop, value); + } +} + +/** + * @param {string} tag + */ +export function set_dynamic_element_data(tag) { + return /-/.test(tag) ? set_custom_element_data_map : set_attributes; +} + +/** + * @returns {void} + */ +export function xlink_attr(node, attribute, value) { + node.setAttributeNS('http://www.w3.org/1999/xlink', attribute, value); +} + +/** + * @param {HTMLElement} node + * @returns {string} + */ +export function get_svelte_dataset(node) { + return node.dataset.svelteH; +} + +/** + * @returns {unknown[]} */ +export function get_binding_group_value(group, __value, checked) { + const value = new Set(); + for (let i = 0; i < group.length; i += 1) { + if (group[i].checked) value.add(group[i].__value); + } + if (!checked) { + value.delete(__value); + } + return Array.from(value); +} + +/** + * @param {HTMLInputElement[]} group + * @returns {{ p(...inputs: HTMLInputElement[]): void; r(): void; }} + */ +export function init_binding_group(group) { + /** + * @type {HTMLInputElement[]} */ + let _inputs; + return { + /* push */ p(...inputs) { + _inputs = inputs; + _inputs.forEach((input) => group.push(input)); + }, + /* remove */ r() { + _inputs.forEach((input) => group.splice(group.indexOf(input), 1)); + } + }; +} + +/** + * @param {number[]} indexes + * @returns {{ u(new_indexes: number[]): void; p(...inputs: HTMLInputElement[]): void; r: () => void; }} + */ +export function init_binding_group_dynamic(group, indexes) { + /** + * @type {HTMLInputElement[]} */ + let _group = get_binding_group(group); + + /** + * @type {HTMLInputElement[]} */ + let _inputs; + + function get_binding_group(group) { + for (let i = 0; i < indexes.length; i++) { + group = group[indexes[i]] = group[indexes[i]] || []; + } + return group; + } + + /** + * @returns {void} */ + function push() { + _inputs.forEach((input) => _group.push(input)); + } + + /** + * @returns {void} */ + function remove() { + _inputs.forEach((input) => _group.splice(_group.indexOf(input), 1)); + } + return { + /* update */ u(new_indexes) { + indexes = new_indexes; + const new_group = get_binding_group(group); + if (new_group !== _group) { + remove(); + _group = new_group; + push(); + } + }, + /* push */ p(...inputs) { + _inputs = inputs; + push(); + }, + /* remove */ r: remove + }; +} + +/** @returns {number} */ +export function to_number(value) { + return value === '' ? null : +value; +} + +/** @returns {any[]} */ +export function time_ranges_to_array(ranges) { + const array = []; + for (let i = 0; i < ranges.length; i += 1) { + array.push({ start: ranges.start(i), end: ranges.end(i) }); + } + return array; +} + +/** + * @param {Element} element + * @returns {ChildNode[]} + */ +export function children(element) { + return Array.from(element.childNodes); +} + +/** + * @param {ChildNodeArray} nodes + * @returns {void} + */ +function init_claim_info(nodes) { + if (nodes.claim_info === undefined) { + nodes.claim_info = { last_index: 0, total_claimed: 0 }; + } +} + +/** + * @template {ChildNodeEx} R + * @param {ChildNodeArray} nodes + * @param {(node: ChildNodeEx) => node is R} predicate + * @param {(node: ChildNodeEx) => ChildNodeEx | undefined} process_node + * @param {() => R} create_node + * @param {boolean} dont_update_last_index + * @returns {R} + */ +function claim_node(nodes, predicate, process_node, create_node, dont_update_last_index = false) { + // Try to find nodes in an order such that we lengthen the longest increasing subsequence + init_claim_info(nodes); + const result_node = (() => { + // We first try to find an element after the previous one + for (let i = nodes.claim_info.last_index; i < nodes.length; i++) { + const node = nodes[i]; + if (predicate(node)) { + const replacement = process_node(node); + if (replacement === undefined) { + nodes.splice(i, 1); + } else { + nodes[i] = replacement; + } + if (!dont_update_last_index) { + nodes.claim_info.last_index = i; + } + return node; + } + } + // Otherwise, we try to find one before + // We iterate in reverse so that we don't go too far back + for (let i = nodes.claim_info.last_index - 1; i >= 0; i--) { + const node = nodes[i]; + if (predicate(node)) { + const replacement = process_node(node); + if (replacement === undefined) { + nodes.splice(i, 1); + } else { + nodes[i] = replacement; + } + if (!dont_update_last_index) { + nodes.claim_info.last_index = i; + } else if (replacement === undefined) { + // Since we spliced before the last_index, we decrease it + nodes.claim_info.last_index--; + } + return node; + } + } + // If we can't find any matching node, we create a new one + return create_node(); + })(); + result_node.claim_order = nodes.claim_info.total_claimed; + nodes.claim_info.total_claimed += 1; + return result_node; +} + +/** + * @param {ChildNodeArray} nodes + * @param {string} name + * @param {{ [key: string]: boolean }} attributes + * @param {(name: string) => Element | SVGElement} create_element + * @returns {Element | SVGElement} + */ +function claim_element_base(nodes, name, attributes, create_element) { + return claim_node( + nodes, + /** @returns {node is Element | SVGElement} */ + (node) => node.nodeName === name, + /** @param {Element} node */ + (node) => { + const remove = []; + for (let j = 0; j < node.attributes.length; j++) { + const attribute = node.attributes[j]; + if (!attributes[attribute.name]) { + remove.push(attribute.name); + } + } + remove.forEach((v) => node.removeAttribute(v)); + return undefined; + }, + () => create_element(name) + ); +} + +/** + * @param {ChildNodeArray} nodes + * @param {string} name + * @param {{ [key: string]: boolean }} attributes + * @returns {Element | SVGElement} + */ +export function claim_element(nodes, name, attributes) { + return claim_element_base(nodes, name, attributes, element); +} + +/** + * @param {ChildNodeArray} nodes + * @param {string} name + * @param {{ [key: string]: boolean }} attributes + * @returns {Element | SVGElement} + */ +export function claim_svg_element(nodes, name, attributes) { + return claim_element_base(nodes, name, attributes, svg_element); +} + +/** + * @param {ChildNodeArray} nodes + * @returns {Text} + */ +export function claim_text(nodes, data) { + return claim_node( + nodes, + /** @returns {node is Text} */ + (node) => node.nodeType === 3, + /** @param {Text} node */ + (node) => { + const data_str = '' + data; + if (node.data.startsWith(data_str)) { + if (node.data.length !== data_str.length) { + return node.splitText(data_str.length); + } + } else { + node.data = data_str; + } + }, + () => text(data), + true // Text nodes should not update last index since it is likely not worth it to eliminate an increasing subsequence of actual elements + ); +} + +/** + * @returns {Text} */ +export function claim_space(nodes) { + return claim_text(nodes, ' '); +} + +/** + * @param {ChildNodeArray} nodes + * @returns {Comment} + */ +export function claim_comment(nodes, data) { + return claim_node( + nodes, + /** @returns {node is Comment} */ + (node) => node.nodeType === 8, + /** @param {Comment} node */ + (node) => { + node.data = '' + data; + return undefined; + }, + () => comment(data), + true + ); +} + +function get_comment_idx(nodes, text, start) { + for (let i = start; i < nodes.length; i += 1) { + const node = nodes[i]; + if (node.nodeType === 8 /* comment node */ && node.textContent.trim() === text) { + return i; + } + } + return -1; +} + +/** + * @param {boolean} is_svg + * @returns {HtmlTagHydration} + */ +export function claim_html_tag(nodes, is_svg) { + // find html opening tag + const start_index = get_comment_idx(nodes, 'HTML_TAG_START', 0); + const end_index = get_comment_idx(nodes, 'HTML_TAG_END', start_index + 1); + if (start_index === -1 || end_index === -1) { + return new HtmlTagHydration(is_svg); + } + + init_claim_info(nodes); + const html_tag_nodes = nodes.splice(start_index, end_index - start_index + 1); + detach(html_tag_nodes[0]); + detach(html_tag_nodes[html_tag_nodes.length - 1]); + const claimed_nodes = html_tag_nodes.slice(1, html_tag_nodes.length - 1); + if (claimed_nodes.length === 0) { + return new HtmlTagHydration(is_svg); + } + for (const n of claimed_nodes) { + n.claim_order = nodes.claim_info.total_claimed; + nodes.claim_info.total_claimed += 1; + } + return new HtmlTagHydration(is_svg, claimed_nodes); +} + +/** + * @param {Text} text + * @param {unknown} data + * @returns {void} + */ +export function set_data(text, data) { + data = '' + data; + if (text.data === data) return; + text.data = /** @type {string} */ (data); +} + +/** + * @param {Text} text + * @param {unknown} data + * @returns {void} + */ +export function set_data_contenteditable(text, data) { + data = '' + data; + if (text.wholeText === data) return; + text.data = /** @type {string} */ (data); +} + +/** + * @param {Text} text + * @param {unknown} data + * @param {string} attr_value + * @returns {void} + */ +export function set_data_maybe_contenteditable(text, data, attr_value) { + if (~contenteditable_truthy_values.indexOf(attr_value)) { + set_data_contenteditable(text, data); + } else { + set_data(text, data); + } +} + +/** + * @returns {void} */ +export function set_input_value(input, value) { + input.value = value == null ? '' : value; +} + +/** + * @returns {void} */ +export function set_input_type(input, type) { + try { + input.type = type; + } catch (e) { + // do nothing + } +} + +/** + * @returns {void} */ +export function set_style(node, key, value, important) { + if (value == null) { + node.style.removeProperty(key); + } else { + node.style.setProperty(key, value, important ? 'important' : ''); + } +} + +/** + * @returns {void} */ +export function select_option(select, value, mounting) { + for (let i = 0; i < select.options.length; i += 1) { + const option = select.options[i]; + if (option.__value === value) { + option.selected = true; + return; + } + } + if (!mounting || value !== undefined) { + select.selectedIndex = -1; // no option should be selected + } +} + +/** + * @returns {void} */ +export function select_options(select, value) { + for (let i = 0; i < select.options.length; i += 1) { + const option = select.options[i]; + option.selected = ~value.indexOf(option.__value); + } +} + +export function select_value(select) { + const selected_option = select.querySelector(':checked'); + return selected_option && selected_option.__value; +} + +export function select_multiple_value(select) { + return [].map.call(select.querySelectorAll(':checked'), (option) => option.__value); +} +// unfortunately this can't be a constant as that wouldn't be tree-shakeable +// so we cache the result instead + +/** + * @type {boolean} */ +let crossorigin; + +/** + * @returns {boolean} */ +export function is_crossorigin() { + if (crossorigin === undefined) { + crossorigin = false; + try { + if (typeof window !== 'undefined' && window.parent) { + void window.parent.document; + } + } catch (error) { + crossorigin = true; + } + } + return crossorigin; +} + +/** + * @param {HTMLElement} node + * @param {() => void} fn + * @returns {() => void} + */ +export function add_iframe_resize_listener(node, fn) { + const computed_style = getComputedStyle(node); + if (computed_style.position === 'static') { + node.style.position = 'relative'; + } + const iframe = element('iframe'); + iframe.setAttribute( + 'style', + 'display: block; position: absolute; top: 0; left: 0; width: 100%; height: 100%; ' + + 'overflow: hidden; border: 0; opacity: 0; pointer-events: none; z-index: -1;' + ); + iframe.setAttribute('aria-hidden', 'true'); + iframe.tabIndex = -1; + const crossorigin = is_crossorigin(); + + /** + * @type {() => void} + */ + let unsubscribe; + if (crossorigin) { + iframe.src = "data:text/html,"; + unsubscribe = listen( + window, + 'message', + /** @param {MessageEvent} event */ (event) => { + if (event.source === iframe.contentWindow) fn(); + } + ); + } else { + iframe.src = 'about:blank'; + iframe.onload = () => { + unsubscribe = listen(iframe.contentWindow, 'resize', fn); + // make sure an initial resize event is fired _after_ the iframe is loaded (which is asynchronous) + // see https://github.com/sveltejs/svelte/issues/4233 + fn(); + }; + } + append(node, iframe); + return () => { + if (crossorigin) { + unsubscribe(); + } else if (unsubscribe && iframe.contentWindow) { + unsubscribe(); + } + detach(iframe); + }; +} +export const resize_observer_content_box = /* @__PURE__ */ new ResizeObserverSingleton({ + box: 'content-box' +}); +export const resize_observer_border_box = /* @__PURE__ */ new ResizeObserverSingleton({ + box: 'border-box' +}); +export const resize_observer_device_pixel_content_box = /* @__PURE__ */ new ResizeObserverSingleton( + { box: 'device-pixel-content-box' } +); +export { ResizeObserverSingleton }; + +/** + * @returns {void} */ +export function toggle_class(element, name, toggle) { + // The `!!` is required because an `undefined` flag means flipping the current state. + element.classList.toggle(name, !!toggle); +} + +/** + * @template T + * @param {string} type + * @param {T} [detail] + * @param {{ bubbles?: boolean, cancelable?: boolean }} [options] + * @returns {CustomEvent} + */ +export function custom_event(type, detail, { bubbles = false, cancelable = false } = {}) { + return new CustomEvent(type, { detail, bubbles, cancelable }); +} + +/** + * @param {string} selector + * @param {HTMLElement} parent + * @returns {ChildNodeArray} + */ +export function query_selector_all(selector, parent = document.body) { + return Array.from(parent.querySelectorAll(selector)); +} + +/** + * @param {string} nodeId + * @param {HTMLElement} head + * @returns {any[]} + */ +export function head_selector(nodeId, head) { + const result = []; + let started = 0; + for (const node of head.childNodes) { + if (node.nodeType === 8 /* comment node */) { + const comment = node.textContent.trim(); + if (comment === `HEAD_${nodeId}_END`) { + started -= 1; + result.push(node); + } else if (comment === `HEAD_${nodeId}_START`) { + started += 1; + result.push(node); + } + } else if (started > 0) { + result.push(node); + } + } + return result; +} +/** */ +export class HtmlTag { + /** + * @private + * @default false + */ + is_svg = false; + /** parent for creating node */ + e = undefined; + /** html tag nodes */ + n = undefined; + /** target */ + t = undefined; + /** anchor */ + a = undefined; + constructor(is_svg = false) { + this.is_svg = is_svg; + this.e = this.n = null; + } + + /** + * @param {string} html + * @returns {void} + */ + c(html) { + this.h(html); + } + + /** + * @param {string} html + * @param {HTMLElement | SVGElement} target + * @param {HTMLElement | SVGElement} anchor + * @returns {void} + */ + m(html, target, anchor = null) { + if (!this.e) { + if (this.is_svg) + this.e = svg_element(/** @type {keyof SVGElementTagNameMap} */ (target.nodeName)); + /** #7364 target for