angular-responsive-carousel
Version:
Carousel for Angular. A simple solution for horizontal scrolling images with lazy loading.
141 lines • 16.2 kB
JavaScript
export class Carousel {
constructor(properties, utils, cells, container, slide) {
this.properties = properties;
this.utils = utils;
this.cells = cells;
this.container = container;
this.slide = slide;
/* The slide length has been limited by the limitSlideLength() method */
this.isSlideLengthLimited = false;
this.isContentImages = true;
this.isLazyLoad = true;
this.isContainerLocked = true;
this.alignCells = "left";
this.initialContainerPosition = 0;
this.containerPullLimit = 100;
this.handleTouchstart = (event) => {
this.container.handleTouchstart();
this.slide.handleTouchstart(event);
};
this.handleHorizontalSwipe = (event) => {
this.container.handleHorizontalSwipe();
};
this.handleTouchend = (event) => {
if (this.properties.freeScroll) {
this.container.handleTouchend();
}
else {
this.container.handleTouchend(true);
this.slide.handleTouchend(event);
}
};
this.isNextArrowDisabled = () => {
return this.slide.isNextArrowDisabled();
};
this.isPrevArrowDisabled = () => {
return this.slide.isPrevArrowDisabled();
};
this.init();
}
get cellLength() {
return this.cells.cellLength;
}
get cellLengthInLightDOMMode() {
if (this.images) {
let cellLength = this.numberOfVisibleCells + this.overflowCellsLimit * 2;
if (cellLength > this.images.length) {
cellLength = this.images.length;
}
return cellLength;
}
else {
return this.cellLength;
}
}
get lastCellIndex() {
return this.images.length ? (this.images.length - 1) : (this.cells.cellLength - 1);
}
get overflowCellsLimit() {
return this.utils.overflowCellsLimit;
}
get cellLimit() {
if (this.isLightDOM) {
let cellLimit = this.numberOfVisibleCells + this.overflowCellsLimit * 2;
if (cellLimit < this.numberOfVisibleCells) {
cellLimit = this.numberOfVisibleCells;
}
return cellLimit;
}
else {
return this.properties.images.length;
}
}
get isLightDOM() {
return this.properties.lightDOM || this.properties.loop;
}
get images() {
return this.properties.images;
}
get margin() {
return this.properties.margin;
}
get minSwipeDistance() {
return this.properties.minSwipeDistance;
}
get transitionDuration() {
return this.properties.transitionDuration;
}
get transitionTimingFunction() {
return this.properties.transitionTimingFunction;
}
get fullCellWidth() {
return this.properties.cellWidth + this.margin;
}
get numberOfVisibleCells() {
return this.utils.numberOfVisibleCells;
}
get lapCounter() {
return Math.floor(this.slide.counter / this.cellLengthInLightDOMMode);
}
get slideCounter() {
return this.slide.counter;
}
updateProperties(properties) {
this.properties = properties;
}
init() {
this.cellsElement = this.properties.cellsElement;
this.visibleWidth = this.properties.visibleWidth || this.cellsElement.parentElement.clientWidth;
}
destroy() {
clearInterval(this.autoplayId);
}
lineUpCells() {
this.cells.lineUp();
}
handleTransitionend() {
this.slide.handleTransitionend();
}
getImage(index) {
return this.cells.getImage(index);
}
next(length = 1) {
if (!this.isNextArrowDisabled()) {
this.slide.next(length);
}
}
prev(length = 1) {
this.slide.prev(length);
}
autoplay() {
this.autoplayId = setInterval(() => {
this.next();
}, this.properties.autoplayInterval);
}
stopAutoplay() {
if (this.autoplayId) {
clearInterval(this.autoplayId);
}
}
}
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{Properties} from './interfaces';\r\n\r\nexport class Carousel {\r\n    cellsElement: HTMLElement | undefined;\r\n\r\n    /* The slide length has been limited by the limitSlideLength() method */\r\n    isSlideLengthLimited: boolean = false;\r\n\r\n    isContentImages: boolean = true;\r\n    visibleWidth!: number;\r\n    isLazyLoad: boolean = true;\r\n    isContainerLocked: boolean = true;\r\n    alignCells: \"left\" | \"center\" = \"left\";\r\n    initialContainerPosition: number = 0;\r\n    autoplayId: any;\r\n    containerPullLimit = 100;\r\n\r\n    get cellLength() {\r\n        return this.cells.cellLength;\r\n    }\r\n\r\n    get cellLengthInLightDOMMode() {\r\n        if (this.images) {\r\n            let cellLength = this.numberOfVisibleCells + this.overflowCellsLimit * 2;\r\n            if (cellLength > this.images.length) {\r\n                cellLength = this.images.length;\r\n            }\r\n            return cellLength;\r\n        } else {\r\n            return this.cellLength;\r\n        }\r\n    }\r\n\r\n    get lastCellIndex() {\r\n        return this.images.length ? (this.images.length - 1) : (this.cells.cellLength - 1);\r\n    }\r\n\r\n    get overflowCellsLimit() {\r\n        return this.utils.overflowCellsLimit;\r\n    }\r\n\r\n    get cellLimit() {\r\n        if (this.isLightDOM) {\r\n            let cellLimit = this.numberOfVisibleCells + this.overflowCellsLimit * 2;\r\n\r\n            if (cellLimit < this.numberOfVisibleCells) {\r\n                cellLimit = this.numberOfVisibleCells;\r\n            }\r\n\r\n            return cellLimit;\r\n        } else {\r\n            return this.properties.images.length;\r\n        }\r\n    }\r\n\r\n    get isLightDOM() {\r\n        return this.properties.lightDOM || this.properties.loop;\r\n    }\r\n\r\n    get images() {\r\n        return this.properties.images;\r\n    }\r\n\r\n    get margin() {\r\n        return this.properties.margin;\r\n    }\r\n\r\n    get minSwipeDistance() {\r\n        return this.properties.minSwipeDistance;\r\n    }\r\n\r\n    get transitionDuration() {\r\n        return this.properties.transitionDuration;\r\n    }\r\n\r\n    get transitionTimingFunction() {\r\n        return this.properties.transitionTimingFunction;\r\n    }\r\n\r\n    get fullCellWidth() {\r\n        return this.properties.cellWidth + this.margin;\r\n    }\r\n\r\n    get numberOfVisibleCells() {\r\n        return this.utils.numberOfVisibleCells;\r\n    }\r\n\r\n    get lapCounter() {\r\n        return Math.floor(this.slide.counter / this.cellLengthInLightDOMMode);\r\n    }\r\n\r\n    get slideCounter() {\r\n        return this.slide.counter;\r\n    }\r\n\r\n    constructor(\r\n        private properties: Properties,\r\n        private utils: any,\r\n        private cells: any,\r\n        private container: any,\r\n        private slide: any) {\r\n\r\n        this.init();\r\n    }\r\n\r\n    updateProperties(properties: Properties) {\r\n        this.properties = properties;\r\n    }\r\n\r\n    init() {\r\n        this.cellsElement = this.properties.cellsElement;\r\n        this.visibleWidth = this.properties.visibleWidth || this.cellsElement!.parentElement!.clientWidth;\r\n    }\r\n\r\n    destroy() {\r\n        clearInterval(this.autoplayId);\r\n    }\r\n\r\n    lineUpCells() {\r\n        this.cells.lineUp();\r\n    }\r\n\r\n    handleTouchstart = (event: any) => {\r\n        this.container.handleTouchstart();\r\n        this.slide.handleTouchstart(event);\r\n    }\r\n\r\n    handleHorizontalSwipe = (event: any) => {\r\n        this.container.handleHorizontalSwipe();\r\n    }\r\n\r\n    handleTouchend = (event: any) => {\r\n        if (this.properties.freeScroll) {\r\n            this.container.handleTouchend();\r\n        } else {\r\n            this.container.handleTouchend(true);\r\n            this.slide.handleTouchend(event);\r\n        }\r\n    }\r\n\r\n    handleTransitionend() {\r\n        this.slide.handleTransitionend();\r\n    }\r\n\r\n    getImage(index:number) {\r\n        return this.cells.getImage(index);\r\n    }\r\n\r\n    next(length: number = 1) {\r\n        if (!this.isNextArrowDisabled()) {\r\n            this.slide.next(length);\r\n        }\r\n    }\r\n\r\n    prev(length: number = 1) {\r\n        this.slide.prev(length);\r\n    }\r\n\r\n    isNextArrowDisabled = () => {\r\n        return this.slide.isNextArrowDisabled();\r\n    }\r\n\r\n    isPrevArrowDisabled = () => {\r\n        return this.slide.isPrevArrowDisabled();\r\n    }\r\n\r\n    autoplay() {\r\n        this.autoplayId = setInterval(() => {\r\n            this.next();\r\n        }, this.properties.autoplayInterval);\r\n    }\r\n\r\n    stopAutoplay() {\r\n        if (this.autoplayId) {\r\n            clearInterval(this.autoplayId);\r\n        }\r\n    }\r\n}"]}