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import { ComponentRender } from '../zd-component/component-render';
import { ICarousel, ICarouselEvents, ISlideData } from './interfaces';
/**
* Base class for Carousel component.
*/
export class Carousel extends ComponentRender implements ICarousel {
/**
* Configures the carousel to play automatically
*/
public autoPlay = false;
/**
* Configures the carousel to show buttons outside the slides area
*/
public buttonsOutside = true;
/**
* Displays the carousel items always in the center (only when using
* a non-integer number in slidesPerView, like 1.5)
*/
public center = false;
/**
* Current slide being displayed
*/
public currentSlide: number;
/**
* Events registered to the carousel
*/
public events: ICarouselEvents = {};
/**
* Displays the pagination as a fraction in the following format: currentSlide/slidesCount.
* Only works when <code>showPagination</code> property is true
*/
public fractionPagination = false;
/**
* Sets the carousel height. Example values: 'auto', '100%', '400px',
* '30em', '400', 400. Values without measurement unit will be notated in pixels by default
*/
public height: number | string = 'auto';
/**
* Sets the carousel max height. Example values: 'auto', '100%', '400px',
* '30em', '400', 400. Values without measurement unit will be notated in pixels by default
*/
public maxHeight: number | string = 'none';
/**
* Sets the carousel min height. Example values: 'auto', '100%', '400px',
* '30em', '400', 400. Values without measurement unit will be notated in pixels by default
*/
public minHeight: number | string = 'auto';
/**
* Set component height to fill all space available
*/
public fillHeight = false;
/**
* Configures the carousel as infinite (the slide after the last one is the first slide, and vice-versa)
*/
public infiniteScroll = true;
/**
* Configures the carousel's initial slide
*/
public initialSlide = 0;
/**
* If autoPlay is enabled, sets the time duration of each slide in milliseconds
*/
public interval = 4000;
/**
* Allows controlling the carousel using the keyboard arrow keys
*/
public keysControl = true;
/**
* Allows controlling the carousel using mouse drag
*/
public mouseControl = false;
/**
* Displays the pagination background
*/
public paginationBackground = true;
/**
* If autoPlay is enabled, it will pause on mouse hover
*/
public pauseOnHover = true;
/**
* Show the navigation arrows.
*/
public showArrows = true;
/**
* The navigation arrows will be shown only on mouse hover.
* Only works when <code>showArrows</code> property is true
*/
public showArrowsOnHover = false;
/**
* Show the carousel pagination menu
*/
public showPagination = false;
/**
* Show a progress bar that fills as the carousel approaches the last slide
*/
public showProgress = false;
/**
* Css class to be added to slides
*/
public slideCssClass = 'zd-pa-4';
/**
* Number of slides to be shown for each view (non-integer numbers are allowed)
*/
public slidesPerView = 1;
/**
* Number of slides to be slided
*/
public slidesToSlide = 1;
/**
* Allows controlling the carousel using touch for mobile
*/
public touchControl = true;
/**
* Duration of the slide transition in milliseconds
*/
public transitionDuration = 300;
/**
* Allows controlling the carousel using the mouse wheel
*/
public wheelControl = false;
/**
* Carousel's right side button.
*/
public nextButton: IButton = {
name: '<<NAME>>_nextButton',
component: 'ZdButton',
iconName: 'next',
icon: true,
};
/**
* Carousel's left side button
*/
public prevButton: IButton = {
name: '<<NAME>>_prevButton',
component: 'ZdButton',
iconName: 'prev',
icon: true,
};
/* istanbul ignore next */
/**
* Creates a new Carousel
* @param props Carousel properties
*/
constructor(props: ICarousel) {
super(props);
this.autoPlay = this.getInitValue('autoPlay', props.autoPlay, this.autoPlay);
this.buttonsOutside = this.getInitValue('buttonsOutside', props.buttonsOutside, this.buttonsOutside);
this.center = this.getInitValue('center', props.center, this.center);
this.height = this.getInitValue('height', props.height, this.height);
this.maxHeight = this.getInitValue('maxHeight', props.maxHeight, this.maxHeight);
this.minHeight = this.getInitValue('minHeight', props.minHeight, this.minHeight);
this.fillHeight = this.getInitValue('fillHeight', props.fillHeight, this.fillHeight);
this.infiniteScroll = this.getInitValue('infiniteScroll', props.infiniteScroll, this.infiniteScroll);
this.initialSlide = this.getInitValue('initialSlide', props.initialSlide, this.initialSlide);
this.currentSlide = this.getInitValue('currentSlide', props.currentSlide, this.initialSlide);
this.interval = this.getInitValue('interval', props.interval, this.interval);
this.keysControl = this.getInitValue('keysControl', props.keysControl, this.keysControl);
this.mouseControl = this.getInitValue('mouseControl', props.mouseControl, this.mouseControl);
this.nextButton = props.nextButton || this.nextButton;
this.fractionPagination = this.getInitValue(
'fractionPagination',
props.fractionPagination,
this.fractionPagination,
);
this.paginationBackground = this.getInitValue(
'paginationBackground',
props.paginationBackground,
this.paginationBackground,
);
this.pauseOnHover = this.getInitValue('pauseOnHover', props.pauseOnHover, this.pauseOnHover);
this.prevButton = props.prevButton || this.prevButton;
this.showArrowsOnHover = this.getInitValue('showArrowsOnHover', props.showArrowsOnHover, this.showArrowsOnHover);
this.showArrows = this.getInitValue('showArrows', props.showArrows, this.showArrows);
this.showPagination = this.getInitValue('showPagination', props.showPagination, this.showPagination);
this.showProgress = this.getInitValue('showProgress', props.showProgress, this.showProgress);
this.slideCssClass = this.getInitValue('slideCssClass', props.slideCssClass, this.slideCssClass);
this.slidesPerView = this.getInitValue('slidesPerView', props.slidesPerView, this.slidesPerView);
this.slidesToSlide = this.getInitValue('slidesToSlide', props.slidesToSlide, this.slidesToSlide);
this.touchControl = this.getInitValue('touchControl', props.touchControl, this.touchControl);
this.transitionDuration = this.getInitValue(
'transitionDuration',
props.transitionDuration,
this.transitionDuration,
);
this.wheelControl = this.getInitValue('wheelControl', props.wheelControl, this.wheelControl);
this.prevButton = this.changeDefaultButtonName(this.prevButton);
this.nextButton = this.changeDefaultButtonName(this.nextButton);
this.createAccessors();
if (props.events) {
this.events = { ...props.events };
}
}
/**
* Slides the carousel to the defined index
* @param index Index of the slide to be slided to
*/
public slideTo(index: number) {
const slideCount = this.children.length;
this.currentSlide = index < 0 ? (index + slideCount) % slideCount : index % slideCount;
}
/**
* Slides to the next slide
*/
public slideNext() {
const slideCount = this.children.length;
if (this.infiniteScroll || this.currentSlide < slideCount - 1) {
this.slideTo(this.currentSlide + this.slidesToSlide);
}
}
/**
* Slides to the previous slide
*/
public slidePrev() {
if (this.infiniteScroll || this.currentSlide > 0) {
this.slideTo(this.currentSlide - this.slidesToSlide);
}
}
/**
* Event triggered before the current slide changes
* @param event Event that triggered the beforeSlide event
* @param element Carousel element
* @param slideData Data related to the beforeSlide event
*/
public beforeSlide(element: any, slideData: ISlideData, event?: Event) {
this.callEvent('beforeSlide', {
event,
element,
slideData,
component: this,
});
}
/**
* Event triggered when the current slide changes.
* @param event Event that triggered the slide event
* @param element Carousel element
* @param slideData Data related to the slide event
*/
public slide(element: any, slideData: ISlideData, event?: Event) {
this.callEvent('slide', {
event,
element,
slideData,
component: this,
});
}
private changeDefaultButtonName(button: IButton) {
button.name = button.name.replace('<<NAME>>', this.name);
return button;
}
}
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