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+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 <head>
+
+ let children = /** @type {ArrayLike<NodeEx2>} */ (target.childNodes);
+ // If target is <head>, 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<T, Exclude<keyof T, K>>}
+ */
+export function object_without_properties(obj, exclude) {
+ const target = /** @type {Pick<T, Exclude<keyof T, K>>} */ ({});
+ 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<string, unknown>} 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,<script>onresize=function(){parent.postMessage(0,'*')}</script>";
+ 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<T>}
+ */
+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 <template> may be provided as #document-fragment(11) */ else
+ this.e = element(
+ /** @type {keyof HTMLElementTagNameMap} */ (
+ target.nodeType === 11 ? 'TEMPLATE' : target.nodeName
+ )
+ );
+ this.t =
+ target.tagName !== 'TEMPLATE'
+ ? target
+ : /** @type {HTMLTemplateElement} */ (target).content;
+ this.c(html);
+ }
+ this.i(anchor);
+ }
+
+ /**
+ * @param {string} html
+ * @returns {void}
+ */
+ h(html) {
+ this.e.innerHTML = html;
+ this.n = Array.from(
+ this.e.nodeName === 'TEMPLATE' ? this.e.content.childNodes : this.e.childNodes
+ );
+ }
+
+ /**
+ * @returns {void} */
+ i(anchor) {
+ for (let i = 0; i < this.n.length; i += 1) {
+ insert(this.t, this.n[i], anchor);
+ }
+ }
+
+ /**
+ * @param {string} html
+ * @returns {void}
+ */
+ p(html) {
+ this.d();
+ this.h(html);
+ this.i(this.a);
+ }
+
+ /**
+ * @returns {void} */
+ d() {
+ this.n.forEach(detach);
+ }
+}
+
+export class HtmlTagHydration extends HtmlTag {
+ /** @type {Element[]} hydration claimed nodes */
+ l = undefined;
+
+ constructor(is_svg = false, claimed_nodes) {
+ super(is_svg);
+ this.e = this.n = null;
+ this.l = claimed_nodes;
+ }
+
+ /**
+ * @param {string} html
+ * @returns {void}
+ */
+ c(html) {
+ if (this.l) {
+ this.n = this.l;
+ } else {
+ super.c(html);
+ }
+ }
+
+ /**
+ * @returns {void} */
+ i(anchor) {
+ for (let i = 0; i < this.n.length; i += 1) {
+ insert_hydration(this.t, this.n[i], anchor);
+ }
+ }
+}
+
+/**
+ * @param {NamedNodeMap} attributes
+ * @returns {{}}
+ */
+export function attribute_to_object(attributes) {
+ const result = {};
+ for (const attribute of attributes) {
+ result[attribute.name] = attribute.value;
+ }
+ return result;
+}
+
+const escaped = {
+ '"': '&quot;',
+ '&': '&amp;',
+ '<': '&lt;'
+};
+
+const regex_attribute_characters_to_escape = /["&<]/g;
+
+/**
+ * Note that the attribute itself should be surrounded in double quotes
+ * @param {any} attribute
+ */
+function escape_attribute(attribute) {
+ return String(attribute).replace(regex_attribute_characters_to_escape, (match) => escaped[match]);
+}
+
+/**
+ * @param {Record<string, string>} attributes
+ */
+export function stringify_spread(attributes) {
+ let str = ' ';
+ for (const key in attributes) {
+ if (attributes[key] != null) {
+ str += `${key}="${escape_attribute(attributes[key])}" `;
+ }
+ }
+
+ return str;
+}
+
+/**
+ * @param {HTMLElement} element
+ * @returns {{}}
+ */
+export function get_custom_elements_slots(element) {
+ const result = {};
+ element.childNodes.forEach(
+ /** @param {Element} node */ (node) => {
+ result[node.slot || 'default'] = true;
+ }
+ );
+ return result;
+}
+
+export function construct_svelte_component(component, props) {
+ return new component(props);
+}
+
+/**
+ * @typedef {Node & {
+ * claim_order?: number;
+ * hydrate_init?: true;
+ * actual_end_child?: NodeEx;
+ * childNodes: NodeListOf<NodeEx>;
+ * }} NodeEx
+ */
+
+/** @typedef {ChildNode & NodeEx} ChildNodeEx */
+
+/** @typedef {NodeEx & { claim_order: number }} NodeEx2 */
+
+/**
+ * @typedef {ChildNodeEx[] & {
+ * claim_info?: {
+ * last_index: number;
+ * total_claimed: number;
+ * };
+ * }} ChildNodeArray
+ */
generated by cgit v1.2.3 (git 2.46.0) at 2026-05-04 16:51:01 +0000