75 lines
2 KiB
JavaScript
75 lines
2 KiB
JavaScript
import Component from '@ember/component';
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import { inject as service } from '@ember/service';
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import { set } from '@ember/object';
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export default Component.extend({
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chart: service('state'),
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tagName: '',
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ontransition: function(e) {},
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init: function() {
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this._super(...arguments);
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this._actions = {};
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this._guards = {};
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},
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didReceiveAttrs: function() {
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if (typeof this.machine !== 'undefined') {
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this.machine.stop();
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}
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if (typeof this.initial !== 'undefined') {
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this.src.initial = this.initial;
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}
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this.machine = this.chart.interpret(this.src, {
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onTransition: state => {
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const e = new CustomEvent('transition', { detail: state });
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this.ontransition(e);
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if (!e.defaultPrevented) {
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state.actions.forEach(item => {
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const action = this._actions[item.type];
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if (typeof action === 'function') {
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this._actions[item.type](item.type, state.context, state.event);
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}
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});
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}
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set(this, 'state', state);
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},
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onGuard: (name, ...rest) => {
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return this._guards[name](...rest);
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},
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});
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},
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didInsertElement: function() {
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this._super(...arguments);
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// xstate has initialState xstate/fsm has state
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set(this, 'state', this.machine.initialState || this.machine.state);
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// set(this, 'state', this.machine.initialState);
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this.machine.start();
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},
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willDestroy: function() {
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this._super(...arguments);
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this.machine.stop();
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},
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addAction: function(name, value) {
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this._actions[name] = value;
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},
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removeAction: function(name) {
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delete this._actions[name];
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},
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addGuard: function(name, value) {
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this._guards[name] = value;
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},
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removeGuard: function(name) {
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delete this._guards[name];
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},
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dispatch: function(eventName, payload) {
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this.machine.send(eventName, payload);
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},
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actions: {
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dispatch: function(eventName, e) {
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if (e && e.preventDefault) {
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e.preventDefault();
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}
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this.dispatch(eventName);
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},
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},
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});
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