svelte-element.js — svelte Source File

Source Code

/** @import { Effect, EffectNodes, TemplateNode } from '#client' */
import { FILENAME, NAMESPACE_SVG } from '../../../../constants.js';
import {
	hydrate_next,
	hydrate_node,
	hydrating,
	set_hydrate_node,
	set_hydrating
} from '../hydration.js';
import { create_text, get_first_child } from '../operations.js';
import { block, teardown } from '../../reactivity/effects.js';
import { set_should_intro } from '../../render.js';
import { active_effect } from '../../runtime.js';
import { component_context, dev_stack } from '../../context.js';
import { DEV } from 'esm-env';
import { EFFECT_TRANSPARENT, ELEMENT_NODE } from '#client/constants';
import { assign_nodes } from '../template.js';
import { is_raw_text_element } from '../../../../utils.js';
import { BranchManager } from './branches.js';
import { set_animation_effect_override } from '../elements/transitions.js';

/**
 * @param {Comment | Element} node
 * @param {() => string} get_tag
 * @param {boolean} is_svg
 * @param {undefined | ((element: Element, anchor: Node | null) => void)} render_fn,
 * @param {undefined | (() => string)} get_namespace
 * @param {undefined | [number, number]} location
 * @returns {void}
 */
export function element(node, get_tag, is_svg, render_fn, get_namespace, location) {
	let was_hydrating = hydrating;

	if (hydrating) {
		hydrate_next();
	}

	var filename = DEV && location && component_context?.function[FILENAME];

	/** @type {null | Element} */
	var element = null;

	if (hydrating && hydrate_node.nodeType === ELEMENT_NODE) {
		element = /** @type {Element} */ (hydrate_node);
		hydrate_next();
	}

	var anchor = /** @type {TemplateNode} */ (hydrating ? hydrate_node : node);

	/**
	 * We track this so we can set it when changing the element, allowing any
	 * `animate:` directive to bind itself to the correct block
	 */
	var parent_effect = /** @type {Effect} */ (active_effect);

	var branches = new BranchManager(anchor, false);

	block(() => {
		const next_tag = get_tag() || null;
		var ns = get_namespace ? get_namespace() : is_svg || next_tag === 'svg' ? NAMESPACE_SVG : null;
// ... (93 more lines)