ngx-crystal-gallery
Version:
Responsive gallery with support for masonry layout and lightbox.
214 lines (213 loc) • 16.5 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,uselessCode} checked by tsc
*/
import { Directive, ElementRef, HostListener, Input, Output, EventEmitter } from '@angular/core';
var PinchDirective = /** @class */ (function () {
function PinchDirective(elementRef) {
this.elementRef = elementRef;
this.scale = 1;
this.initialScale = 1;
this.moveX = 0;
this.moveY = 0;
this.initialMoveX = 0;
this.initialMoveY = 0;
this.isNextImageLoaded = true;
this.events = new EventEmitter();
this.elem = this.elementRef.nativeElement;
}
/**
* @param {?} event
* @return {?}
*/
PinchDirective.prototype.touchstartHandler = /**
* @param {?} event
* @return {?}
*/
function (event) {
this.elem.style.transformOrigin = '0 0';
};
/**
* @param {?} event
* @return {?}
*/
PinchDirective.prototype.touchmoveHandler = /**
* @param {?} event
* @return {?}
*/
function (event) {
/** @type {?} */
var touches = event.touches;
if (touches.length === 1 && this.scale === 1 && !this.eventType || this.eventType == 'swipe') {
event.preventDefault();
if (!this.isNextImageLoaded) {
return;
}
if (!this.eventType) {
this.startX = event.touches[0].pageX;
this.startY = event.touches[0].pageY;
}
this.eventType = 'swipe';
this.moveX = this.initialMoveX + (event.touches[0].pageX - this.startX);
this.moveY = 0;
this.transformElem(0);
}
};
/**
* @param {?} event
* @return {?}
*/
PinchDirective.prototype.touchendHandler = /**
* @param {?} event
* @return {?}
*/
function (event) {
/** @type {?} */
var touches = event.touches;
/** @type {?} */
var img = this.elem.getElementsByTagName("img")[0];
if (!this.isNextImageLoaded) {
return;
}
if (this.scale < 1) {
this.scale = 1;
}
if (this.moveY > 0) {
this.moveY = 0;
}
if (this.moveX > 100) {
this.slide('prev');
}
else if (this.moveX < -100) {
this.slide('next');
}
else {
this.moveX = 0;
}
this.initialScale = this.scale;
this.initialMoveX = this.moveX;
this.initialMoveY = this.moveY;
this.transformElem(200);
this.eventType = 'touchend';
if (touches.length == 0) {
this.eventType = '';
}
};
/**
* @param {?} event
* @return {?}
*/
PinchDirective.prototype.slide = /**
* @param {?} event
* @return {?}
*/
function (event) {
var _this = this;
this.onSlide(event);
if (event === 'prev') {
this.moveX = window.innerWidth + 8;
if (this.isFirst) {
this.moveX = 0;
}
}
if (event === 'next') {
this.moveX = -window.innerWidth - 8;
if (this.isLast) {
this.moveX = 0;
}
}
this.isNextImageLoaded = false;
setTimeout(function () {
_this.moveX = 0;
_this.initialMoveX = 0;
_this.isNextImageLoaded = true;
}, 200);
};
/**
* @param {?} evenType
* @return {?}
*/
PinchDirective.prototype.onSlide = /**
* @param {?} evenType
* @return {?}
*/
function (evenType) {
this.events.emit(evenType);
};
/**
* @param {?=} duration
* @return {?}
*/
PinchDirective.prototype.transformElem = /**
* @param {?=} duration
* @return {?}
*/
function (duration) {
if (duration === void 0) { duration = 50; }
/** @type {?} */
var matrixVal = 'matrix(' + Number(this.scale) + ',' + 0 + ',' + 0 + ',' + Number(this.scale) + ',' + Number(this.moveX) + ',' + Number(this.moveY) + ')';
this.elem.style.transition = 'all ' + duration + 'ms';
this.elem.style.transform = matrixVal;
this.elem.style.webkitTransform = matrixVal;
};
PinchDirective.decorators = [
{ type: Directive, args: [{
selector: '[pinch]'
},] },
];
/** @nocollapse */
PinchDirective.ctorParameters = function () { return [
{ type: ElementRef }
]; };
PinchDirective.propDecorators = {
isLast: [{ type: Input }],
isFirst: [{ type: Input }],
events: [{ type: Output }],
touchstartHandler: [{ type: HostListener, args: ['touchstart', ['$event'],] }],
touchmoveHandler: [{ type: HostListener, args: ['touchmove', ['$event'],] }],
touchendHandler: [{ type: HostListener, args: ['touchend', ['$event'],] }]
};
return PinchDirective;
}());
export { PinchDirective };
if (false) {
/** @type {?} */
PinchDirective.prototype.elem;
/** @type {?} */
PinchDirective.prototype.eventType;
/** @type {?} */
PinchDirective.prototype.scale;
/** @type {?} */
PinchDirective.prototype.initialScale;
/** @type {?} */
PinchDirective.prototype.startX;
/** @type {?} */
PinchDirective.prototype.startY;
/** @type {?} */
PinchDirective.prototype.moveX;
/** @type {?} */
PinchDirective.prototype.moveY;
/** @type {?} */
PinchDirective.prototype.initialMoveX;
/** @type {?} */
PinchDirective.prototype.initialMoveY;
/** @type {?} */
PinchDirective.prototype.moveXC;
/** @type {?} */
PinchDirective.prototype.moveYC;
/** @type {?} */
PinchDirective.prototype.distance;
/** @type {?} */
PinchDirective.prototype.initialDistance;
/** @type {?} */
PinchDirective.prototype.isNextImageLoaded;
/** @type {?} */
PinchDirective.prototype.isLast;
/** @type {?} */
PinchDirective.prototype.isFirst;
/** @type {?} */
PinchDirective.prototype.events;
/** @type {?} */
PinchDirective.prototype.elementRef;
}
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{ Directive, ElementRef, HostListener, Input, Output, EventEmitter } from '@angular/core';\n\n@Directive({\n    selector: '[pinch]'\n})\n\nexport class PinchDirective{\n\n    elem: any;\n    eventType: any;\n\n    scale: any = 1;\n    initialScale: any = 1;\n\n    startX: any;\n    startY: any;\n\n    moveX: any = 0;\n    moveY: any = 0;\n    initialMoveX: any = 0;\n    initialMoveY: any = 0;\n\n    moveXC: any;\n    moveYC: any;\n\n    distance: any;\n    initialDistance: any;\n\n    isNextImageLoaded: any = true;\n\n    @Input() isLast: any;\n    @Input() isFirst: any;\n\n    @Output() events = new EventEmitter<boolean>();\n     \n    constructor(private elementRef: ElementRef){\n        this.elem = this.elementRef.nativeElement;\n    }\n\n    @HostListener('touchstart', ['$event'])\n    touchstartHandler(event) {\n        this.elem.style.transformOrigin = '0 0';\n    }\n\n    @HostListener('touchmove', ['$event'])\n    touchmoveHandler(event) {\n        let touches = event.touches;\n\n        if (touches.length === 1 && this.scale === 1 && !this.eventType || this.eventType == 'swipe'){\n            event.preventDefault();\n\n            if (!this.isNextImageLoaded) {\n                return;\n            }\n\n            if (!this.eventType){\n                this.startX = event.touches[0].pageX;\n                this.startY = event.touches[0].pageY;\n            }\n\n            this.eventType = 'swipe';\n\n            this.moveX = this.initialMoveX + (event.touches[0].pageX - this.startX);\n            this.moveY = 0;\n\n            this.transformElem(0);\n        }\n    }\n\n    @HostListener('touchend', ['$event'])\n    touchendHandler(event) {\n        let touches = event.touches;\n        let img = this.elem.getElementsByTagName(\"img\")[0];\n\n        if (!this.isNextImageLoaded) {\n            return;\n        }\n        \n        if (this.scale < 1){\n            this.scale = 1;\n        }\n        if (this.moveY > 0){\n            this.moveY = 0;\n        } \n\n        if (this.moveX > 100){\n            this.slide('prev');\n        } else if (this.moveX < -100){\n            this.slide('next');\n        } else {\n            this.moveX = 0;\n        }\n\n        this.initialScale = this.scale;\n        this.initialMoveX = this.moveX;\n        this.initialMoveY = this.moveY;\n\n        this.transformElem(200); \n\n        this.eventType = 'touchend';        \n        if (touches.length == 0){\n            this.eventType = '';\n        }\n    }\n\n    slide(event: any){\n        this.onSlide(event);\n\n        if (event === 'prev'){\n            this.moveX = window.innerWidth + 8; \n            if (this.isFirst){\n                this.moveX = 0;\n            }\n        }\n        if (event === 'next'){\n            this.moveX = -window.innerWidth - 8;\n            if (this.isLast){\n                this.moveX = 0;\n            }\n        }\n\n        this.isNextImageLoaded = false;\n\n        setTimeout(() => {\n            this.moveX = 0;\n            this.initialMoveX = 0;\n            this.isNextImageLoaded = true;\n        }, 200);\n    }\n\n    onSlide(evenType:any) {\n        this.events.emit(evenType);\n    }\n\n    transformElem(duration: any = 50){\n        let matrixVal = 'matrix('+ Number(this.scale) +','+ 0 +','+ 0 +','+ Number(this.scale) +','+ Number(this.moveX) +','+ Number(this.moveY) +')';\n        \n        this.elem.style.transition = 'all '+ duration +'ms';\n        this.elem.style.transform = matrixVal;\n        this.elem.style.webkitTransform = matrixVal;\n    }\n}"]}