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| import { A } from '@ember/array';
import { camelize, underscore } from '@ember/string';
import { scheduleOnce, bind } from '@ember/runloop';
import { observer, computed } from '@ember/object';
import { on } from '@ember/object/evented';
import Component from '@ember/component';
import introJS from 'intro-js'
let INTRO_JS_OPTIONS = [
'next-label',
'prev-label',
'skip-label',
'done-label',
'tooltip-position',
'tooltip-class',
'highlightClass',
'exit-on-esc',
'exit-on-overlay-click',
'show-step-numbers',
'show-step-numbers',
'keyboard-navigation',
'show-buttons',
'show-bullets',
'show-progress',
'scroll-to-element',
'overlay-opacity',
'disable-interaction'
];
export default Component.extend({
setupIntroJS: on('didInsertElement', observer('start-if', function() {
scheduleOnce('afterRender', this, this.startIntroJS);
})),
/**
* Options passed to IntroJS. You can specify the options when using the
* Handlebars helper:
*
* ```handlebars
* {{intro-js steps=steps show-bullets=true}}
* ```
*
* Or you could extend your own base class to override defaults
* instead of specifying them every time in the Handlebars helper:
*
* ```javascript
* myapp/app/components/my-intro-js.js
*
* import IntroJSComponent from 'ember-introjs/components/intro-js';
*
* export default IntroJSComponent.extend({
* 'exit-on-esc': true
* });
* ```
*
* You can also reopen the class:
*
* ```javascript
* import IntroJSComponent from 'ember-introjs/components/intro-js';
*
* IntroJSComponent.reopen({
* 'exit-on-esc': true
* });
* ```
*
* @property
*/
introJSOptions: computed(
'next-label',
'prev-label',
'skip-label',
'done-label',
'tooltip-position',
'tooltip-class',
'highlightClass',
'exit-on-esc',
'exit-on-overlay-click',
'show-step-numbers',
'keyboard-navigation',
'show-buttons',
'show-bullets',
'show-progress',
'scroll-to-element',
'overlay-opacity',
'disable-interaction',
'steps',
function(){
let option, normalizedName, value, options = {};
for(let i = 0; i < INTRO_JS_OPTIONS.length; i++){
option = INTRO_JS_OPTIONS[i];
normalizedName = camelize(underscore(option));
value = this.get(option);
Iif (value !== null && value !== undefined) {
options[normalizedName] = value;
}
}
options.steps = this.get('steps');
return options;
}
),
willDestroyElement() {
let intro = this.get('introJS');
if (intro) {
intro.exit();
}
this._super(...arguments);
},
startIntroJS(){
if (!this.get('introJS')) {
this._setIntroJS(introJS());
}
let intro = this.get('introJS');
let options = this.get('introJSOptions');
if (this.get('start-if')){
intro.setOptions(options);
this.registerCallbacksWithIntroJS();
this._setCurrentStep(0);
intro.start();
} else {
intro.exit();
this._setIntroJS(null);
}
},
registerCallbacksWithIntroJS(){
let intro = this.get('introJS');
intro.onbeforechange(bind(this, this._onBeforeChange));
intro.onchange(bind(this, this._onChange));
intro.onafterchange(bind(this, this._onAfterChange));
intro.oncomplete(bind(this, this._onComplete));
intro.onexit(bind(this, this._onExit));
intro.onskip(bind(this, this._onSkip));
},
_setIntroJS(introJS){
this.set('introJS', introJS);
},
_onBeforeChange(elementOfNewStep) {
let prevStep = this.get('currentStep');
let currentStepIndex = this.get('introJS._currentStep');
this._setCurrentStep(currentStepIndex);
let nextStep = this._getStep(++currentStepIndex);
this.sendAction('on-before-change', prevStep, nextStep, this, elementOfNewStep);
},
_onChange(targetElement) {
this.sendAction('on-change', this._getNextStep(), this, targetElement);
},
_onAfterChange(targetElement){
this.sendAction('on-after-change', this._getNextStep(), this, targetElement);
},
_onExit(){
this.sendAction('on-exit', this.get('currentStep'), this);
},
_onSkip(){
this.sendAction('on-skip', this.get('currentStep'), this);
},
_onComplete() {
this.sendAction('on-complete', this.get('currentStep'));
},
_setCurrentStep(step){
this.set('currentStep', this._getStep(step));
},
_getNextStep() {
return this._getStep(this.get('introJS._currentStep') + 1);
},
_getStep(step) {
return A(this.get('steps')).objectAt(step);
}
});
|