mirror of https://github.com/sveltejs/svelte
chore: move legacy code (#10775)
* move event modifier code * move more legacy code * oops --------- Co-authored-by: Rich Harris <rich.harris@vercel.com>pull/10778/head
Rich Harris
2 years ago
committed by
GitHub
parent
e36a8d06ea
commit
ea97fe22da
@ -0,0 +1,83 @@
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/**
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* @param {(event: Event, ...args: Array<unknown>) => void} fn
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* @returns {(event: Event, ...args: unknown[]) => void}
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*/
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export function trusted(fn) {
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return function (...args) {
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var event = /** @type {Event} */ (args[0]);
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if (event.isTrusted) {
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// @ts-ignore
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fn.apply(this, args);
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}
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};
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}
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/**
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* @param {(event: Event, ...args: Array<unknown>) => void} fn
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* @returns {(event: Event, ...args: unknown[]) => void}
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*/
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export function self(fn) {
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return function (...args) {
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var event = /** @type {Event} */ (args[0]);
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// @ts-ignore
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if (event.target === this) {
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// @ts-ignore
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fn.apply(this, args);
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}
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};
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}
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/**
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* @param {(event: Event, ...args: Array<unknown>) => void} fn
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* @returns {(event: Event, ...args: unknown[]) => void}
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*/
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export function stopPropagation(fn) {
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return function (...args) {
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var event = /** @type {Event} */ (args[0]);
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event.stopPropagation();
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// @ts-ignore
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return fn.apply(this, args);
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};
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}
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/**
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* @param {(event: Event, ...args: Array<unknown>) => void} fn
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* @returns {(event: Event, ...args: unknown[]) => void}
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*/
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export function once(fn) {
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var ran = false;
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return function (...args) {
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if (ran) return;
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ran = true;
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// @ts-ignore
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return fn.apply(this, args);
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};
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}
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/**
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* @param {(event: Event, ...args: Array<unknown>) => void} fn
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* @returns {(event: Event, ...args: unknown[]) => void}
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*/
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export function stopImmediatePropagation(fn) {
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return function (...args) {
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var event = /** @type {Event} */ (args[0]);
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event.stopImmediatePropagation();
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// @ts-ignore
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return fn.apply(this, args);
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};
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}
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/**
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* @param {(event: Event, ...args: Array<unknown>) => void} fn
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* @returns {(event: Event, ...args: unknown[]) => void}
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*/
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export function preventDefault(fn) {
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return function (...args) {
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var event = /** @type {Event} */ (args[0]);
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event.preventDefault();
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// @ts-ignore
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return fn.apply(this, args);
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};
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}
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@ -0,0 +1,54 @@
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import { run } from '../../../common.js';
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import { pre_effect, user_effect } from '../../reactivity/effects.js';
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import { current_component_context, deep_read_state, get, untrack } from '../../runtime.js';
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/**
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* Legacy-mode only: Call `onMount` callbacks and set up `beforeUpdate`/`afterUpdate` effects
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*/
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export function init() {
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const context = /** @type {import('#client').ComponentContext} */ (current_component_context);
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const callbacks = context.u;
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if (!callbacks) return;
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// beforeUpdate
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if (callbacks.b.length) {
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pre_effect(() => {
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observe_all(context);
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callbacks.b.forEach(run);
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});
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}
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// onMount (must run before afterUpdate)
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user_effect(() => {
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const fns = untrack(() => callbacks.m.map(run));
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return () => {
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for (const fn of fns) {
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if (typeof fn === 'function') {
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fn();
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}
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}
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};
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});
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// afterUpdate
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if (callbacks.a.length) {
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user_effect(() => {
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observe_all(context);
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callbacks.a.forEach(run);
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});
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}
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}
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/**
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* Invoke the getter of all signals associated with a component
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* so they can be registered to the effect this function is called in.
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* @param {import('#client').ComponentContext} context
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*/
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function observe_all(context) {
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if (context.d) {
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for (const signal of context.d) get(signal);
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}
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deep_read_state(context.s);
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}
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@ -0,0 +1,68 @@
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import { set, source } from '../../reactivity/sources.js';
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import { get } from '../../runtime.js';
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import { is_array } from '../../utils.js';
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/**
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* Under some circumstances, imports may be reactive in legacy mode. In that case,
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* they should be using `reactive_import` as part of the transformation
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* @param {() => any} fn
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*/
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export function reactive_import(fn) {
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var s = source(0);
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return function () {
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if (arguments.length === 1) {
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set(s, get(s) + 1);
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return arguments[0];
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} else {
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get(s);
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return fn();
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}
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};
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}
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/**
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* @this {any}
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* @param {Record<string, unknown>} $$props
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* @param {Event} event
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* @returns {void}
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*/
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export function bubble_event($$props, event) {
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var events = /** @type {Record<string, Function[] | Function>} */ ($$props.$$events)?.[
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event.type
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];
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var callbacks = is_array(events) ? events.slice() : events == null ? [] : [events];
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for (var fn of callbacks) {
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// Preserve "this" context
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fn.call(this, event);
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}
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}
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/**
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* Used to simulate `$on` on a component instance when `legacy.componentApi` is `true`
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* @param {Record<string, any>} $$props
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* @param {string} event_name
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* @param {Function} event_callback
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*/
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export function add_legacy_event_listener($$props, event_name, event_callback) {
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$$props.$$events ||= {};
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$$props.$$events[event_name] ||= [];
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$$props.$$events[event_name].push(event_callback);
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}
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/**
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* Used to simulate `$set` on a component instance when `legacy.componentApi` is `true`.
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* Needs component accessors so that it can call the setter of the prop. Therefore doesn't
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* work for updating props in `$$props` or `$$restProps`.
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* @this {Record<string, any>}
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* @param {Record<string, any>} $$new_props
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*/
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export function update_legacy_props($$new_props) {
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for (var key in $$new_props) {
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if (key in this) {
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this[key] = $$new_props[key];
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}
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}
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}
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