@ribajs/core
Version:
Core module of Riba.js
218 lines • 15.5 kB
JavaScript
import { View } from "../view.js";
import { Riba } from "../riba.js";
import { BasicComponent } from "./basic-component.js";
import { EventDispatcher } from "@ribajs/events";
export class Component extends BasicComponent {
view = null;
riba;
_binds = false;
_bound = false;
_connected = false;
_disconnected = false;
lifecycleEvents = EventDispatcher.getInstance("lifecycle");
lifecycleOptions = {};
get binds() {
return this._binds;
}
get bound() {
return this._bound;
}
get connected() {
return this._connected;
}
get disconnected() {
return this._disconnected;
}
autobind = true;
constructor() {
super();
this.lifecycleEvents.trigger("Component:constructor", this.getLifecycleEventData());
this.lifecycleEvents.on("ComponentLifecycle:allBound", this.afterAllBind, this);
}
async init(observedAttributes) {
try {
await super.init(observedAttributes);
this.lifecycleEvents.trigger("Component:init", this.getLifecycleEventData());
return await this.bindIfReady();
}
catch (error) {
this.throw(error);
}
}
throw(error) {
if (error.message) {
console.error(`[${this.tagName}] ${error.message}`);
}
this.lifecycleEvents.trigger("Component:error", error, this.getLifecycleEventData());
this.error(error);
}
async bindIfReady() {
if (this.ready()) {
await this.beforeTemplate();
const template = await this.loadTemplate();
await this.afterTemplate(template);
if (this.autobind) {
await this.bind();
}
await this.onReady();
return;
}
this.debug(`Not all required or passed attributes are set to load and bind the template`, this.observedAttributesToCheck, this.scope);
return;
}
async _beforeBind() {
this._binds = true;
this.debug("Start to bind Riba");
this.lifecycleEvents.trigger("Component:beforeBind", this.getLifecycleEventData());
}
async beforeBind() {
}
async _afterBind() {
this._binds = false;
this._bound = true;
this.lifecycleEvents.trigger("Component:afterBind", this.getLifecycleEventData());
}
async afterBind() {
}
async afterAllBind() {
}
getLifecycleEventData() {
const data = {
tagName: this.tagName.toLowerCase(),
component: this,
options: this.lifecycleOptions,
};
return data;
}
disconnectedCallback() {
try {
this._disconnected = true;
this._connected = false;
super.disconnectedCallback();
this.lifecycleEvents.trigger("Component:disconnected", this.getLifecycleEventData());
this.lifecycleEvents.off("ComponentLifecycle:allBound", this.afterAllBind, this);
this.lifecycleEvents.off("ComponentLifecycle:error", this.afterAllBind, this);
}
catch (error) {
this.throw(error);
}
}
connectedCallback() {
try {
this._disconnected = false;
this._connected = true;
super.connectedCallback();
this.lifecycleEvents.trigger("Component:connected", this.getLifecycleEventData());
}
catch (error) {
this.throw(error);
}
}
async attributeChangedCallback(attributeName, oldValue, newValue, namespace) {
try {
super.attributeChangedCallback(attributeName, oldValue, newValue, namespace);
await this.bindIfReady();
}
catch (error) {
this.throw(error);
}
}
callFormatterHandler(self) {
return {
name: "call",
read: (fn, ...args) => {
if (!fn) {
throw new Error(`[${self.tagName}] Can not use "call" formatter: fn is undefined!`);
}
return fn.apply(self, args);
},
};
}
argsFormatterHandler(self) {
return {
name: "args",
read: (fn, ...fnArgs) => {
return (event, scope, el, binding) => {
if (!fn) {
throw new Error(`[${self.tagName}] Can not use "args" formatter: fn is undefined!`);
}
fnArgs.push(event);
fnArgs.push(scope);
fnArgs.push(el);
fnArgs.push(binding);
return fn.apply(self, fnArgs);
};
},
};
}
async bind() {
if (this.binds || this.bound) {
return this.view;
}
if (!this.checkRequiredAttributes()) {
this.debug("Not all required attributes are set for bind");
return;
}
try {
await this._beforeBind();
await this.beforeBind();
this.riba = new Riba();
this.view = this.getView();
if (this.view) {
this.scope = this.view.models;
this.view.bind();
}
await this._afterBind();
await this.afterBind();
}
catch (error) {
this._binds = false;
this._bound = false;
this.throw(error);
}
return this.view;
}
getView() {
try {
const viewOptions = this.riba?.getViewOptions({
handler: this.eventHandler(this),
formatters: {
call: this.callFormatterHandler(this),
args: this.argsFormatterHandler(this),
},
});
if (viewOptions) {
const view = new View(Array.prototype.slice.call(this.childNodes), this.scope, viewOptions);
return view;
}
return null;
}
catch (error) {
this.throw(error);
}
}
async unbind() {
try {
if (this.view) {
this._binds = false;
this._bound = false;
this.view.unbind();
this.view = null;
}
}
catch (error) {
this.throw(error);
}
}
async build() {
try {
if (this.view) {
this.view.build();
}
}
catch (error) {
this.throw(error);
}
}
}
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