@udhsin/ngx-image-viewer/bundles/udhsin-ngx-image-viewer.umd.js

A configurable Angular image viewer component, compatible with Angular 2+

(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('@angular/common')) :
    typeof define === 'function' && define.amd ? define('@udhsin/ngx-image-viewer', ['exports', '@angular/core', '@angular/common'], factory) :
    (global = global || self, factory((global.udhsin = global.udhsin || {}, global.udhsin['ngx-image-viewer'] = {}), global.ng.core, global.ng.common));
}(this, (function (exports, core, common) { 'use strict';

    /*! *****************************************************************************
    Copyright (c) Microsoft Corporation.

    Permission to use, copy, modify, and/or distribute this software for any
    purpose with or without fee is hereby granted.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
    REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
    AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
    OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
    PERFORMANCE OF THIS SOFTWARE.
    ***************************************************************************** */
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    var CustomEvent = /** @class */ (function () {
        function CustomEvent(name, imageIndex) {
            this.name = name;
            this.imageIndex = imageIndex;
        }
        return CustomEvent;
    }());

    var DEFAULT_CONFIG = {
        btnClass: 'default',
        zoomFactor: 0.1,
        containerBackgroundColor: '#ccc',
        wheelZoom: false,
        allowFullscreen: true,
        allowKeyboardNavigation: true,
        alignCenter: true,
        btnShow: {
            zoomIn: true,
            zoomOut: true,
            rotateClockwise: true,
            rotateCounterClockwise: true,
            next: true,
            prev: true,
        },
        btnIcons: {
            zoomIn: 'fa fa-plus',
            zoomOut: 'fa fa-minus',
            rotateClockwise: 'fa fa-repeat',
            rotateCounterClockwise: 'fa fa-undo',
            next: 'fa fa-arrow-right',
            prev: 'fa fa-arrow-left',
            fullscreen: 'fa fa-arrows-alt',
        },
    };
    var ImageViewerComponent = /** @class */ (function () {
        function ImageViewerComponent(moduleConfig) {
            this.moduleConfig = moduleConfig;
            this.index = 0;
            this.indexChange = new core.EventEmitter();
            this.configChange = new core.EventEmitter();
            this.customEvent = new core.EventEmitter();
            this.style = {
                transform: '',
                msTransform: '',
                oTransform: '',
                webkitTransform: '',
            };
            this.fullscreen = false;
            this.loading = true;
            this.scale = 1;
            this.rotation = 0;
            this.translateX = 0;
            this.translateY = 0;
            this.hovered = false;
        }
        ImageViewerComponent.prototype.ngOnInit = function () {
            var merged = this.mergeConfig(DEFAULT_CONFIG, this.moduleConfig);
            this.config = this.mergeConfig(merged, this.config);
            this.triggerConfigBinding();
        };
        ImageViewerComponent.prototype.nextImage = function (event) {
            if (this.canNavigate(event) && this.index < this.src.length - 1) {
                this.loading = true;
                this.index++;
                this.triggerIndexBinding();
                this.reset();
            }
        };
        ImageViewerComponent.prototype.prevImage = function (event) {
            if (this.canNavigate(event) && this.index > 0) {
                this.loading = true;
                this.index--;
                this.triggerIndexBinding();
                this.reset();
            }
        };
        ImageViewerComponent.prototype.zoomIn = function () {
            this.scale *= 1 + this.config.zoomFactor;
            this.updateStyle();
        };
        ImageViewerComponent.prototype.zoomOut = function () {
            if (this.scale > this.config.zoomFactor) {
                this.scale /= 1 + this.config.zoomFactor;
            }
            this.updateStyle();
        };
        ImageViewerComponent.prototype.scrollZoom = function (evt) {
            if (this.config.wheelZoom) {
                evt.deltaY > 0 ? this.zoomOut() : this.zoomIn();
                return false;
            }
        };
        ImageViewerComponent.prototype.rotateClockwise = function () {
            this.rotation += 90;
            this.updateStyle();
        };
        ImageViewerComponent.prototype.rotateCounterClockwise = function () {
            this.rotation -= 90;
            this.updateStyle();
        };
        ImageViewerComponent.prototype.onLoad = function () {
            this.loading = false;
        };
        ImageViewerComponent.prototype.onLoadStart = function () {
            this.loading = true;
        };
        ImageViewerComponent.prototype.onDragOver = function (evt) {
            this.translateX += evt.clientX - this.prevX;
            this.translateY += evt.clientY - this.prevY;
            this.prevX = evt.clientX;
            this.prevY = evt.clientY;
            this.updateStyle();
        };
        ImageViewerComponent.prototype.onDragStart = function (evt) {
            if (evt.dataTransfer && evt.dataTransfer.setDragImage) {
                evt.dataTransfer.setDragImage(evt.target.nextElementSibling, 0, 0);
            }
            this.prevX = evt.clientX;
            this.prevY = evt.clientY;
        };
        ImageViewerComponent.prototype.toggleFullscreen = function () {
            this.fullscreen = !this.fullscreen;
            if (!this.fullscreen) {
                this.reset();
            }
        };
        ImageViewerComponent.prototype.triggerIndexBinding = function () {
            this.indexChange.emit(this.index);
        };
        ImageViewerComponent.prototype.triggerConfigBinding = function () {
            this.configChange.next(this.config);
        };
        ImageViewerComponent.prototype.fireCustomEvent = function (name, imageIndex) {
            this.customEvent.emit(new CustomEvent(name, imageIndex));
        };
        ImageViewerComponent.prototype.reset = function () {
            this.scale = 1;
            this.rotation = 0;
            this.translateX = 0;
            this.translateY = 0;
            this.updateStyle();
        };
        ImageViewerComponent.prototype.onMouseOver = function () {
            this.hovered = true;
        };
        ImageViewerComponent.prototype.onMouseLeave = function () {
            this.hovered = false;
        };
        ImageViewerComponent.prototype.canNavigate = function (event) {
            return (event == null || (this.config.allowKeyboardNavigation && this.hovered));
        };
        ImageViewerComponent.prototype.updateStyle = function () {
            this.style.transform = "translate(" + this.translateX + "px, " + this.translateY + "px) rotate(" + this.rotation + "deg) scale(" + this.scale + ")";
            this.style.msTransform = this.style.transform;
            this.style.webkitTransform = this.style.transform;
            this.style.oTransform = this.style.transform;
        };
        ImageViewerComponent.prototype.mergeConfig = function (defaultValues, overrideValues) {
            var result = __assign({}, defaultValues);
            if (overrideValues) {
                result = __assign(__assign({}, defaultValues), overrideValues);
                if (overrideValues.btnIcons) {
                    result.btnIcons = __assign(__assign({}, defaultValues.btnIcons), overrideValues.btnIcons);
                }
            }
            return result;
        };
        ImageViewerComponent.ctorParameters = function () { return [
            { type: undefined, decorators: [{ type: core.Optional }, { type: core.Inject, args: ['config',] }] }
        ]; };
        __decorate([
            core.Input()
        ], ImageViewerComponent.prototype, "src", void 0);
        __decorate([
            core.Input()
        ], ImageViewerComponent.prototype, "index", void 0);
        __decorate([
            core.Input()
        ], ImageViewerComponent.prototype, "config", void 0);
        __decorate([
            core.Output()
        ], ImageViewerComponent.prototype, "indexChange", void 0);
        __decorate([
            core.Output()
        ], ImageViewerComponent.prototype, "configChange", void 0);
        __decorate([
            core.Output()
        ], ImageViewerComponent.prototype, "customEvent", void 0);
        __decorate([
            core.HostListener('window:keyup.ArrowRight', ['$event'])
        ], ImageViewerComponent.prototype, "nextImage", null);
        __decorate([
            core.HostListener('window:keyup.ArrowLeft', ['$event'])
        ], ImageViewerComponent.prototype, "prevImage", null);
        __decorate([
            core.HostListener('mouseover')
        ], ImageViewerComponent.prototype, "onMouseOver", null);
        __decorate([
            core.HostListener('mouseleave')
        ], ImageViewerComponent.prototype, "onMouseLeave", null);
        ImageViewerComponent = __decorate([
            core.Component({
                selector: 'ngx-image-viewer',
                template: "<div\r\n  [ngxToggleFullscreen]=\"fullscreen\"\r\n  class=\"img-container\"\r\n  [ngClass]=\"{'align-center': config.alignCenter}\"\r\n  [style.backgroundColor]=\"config.containerBackgroundColor\"\r\n  (wheel)=\"scrollZoom($event)\"\r\n  (dragover)=\"onDragOver($event)\"\r\n>\r\n  <img\r\n    [src]=\"src[index]\"\r\n    [ngStyle]=\"style\"\r\n    alt=\"Image not found...\"\r\n    (dragstart)=\"onDragStart($event)\"\r\n    (load)=\"onLoad()\"\r\n    (loadstart)=\"onLoadStart()\"\r\n  />\r\n  <!-- Div below will be used to hide the 'ghost' image when dragging -->\r\n  <div></div>\r\n  <div class=\"spinner-container\" *ngIf=\"loading\">\r\n    <div class=\"spinner\"></div>\r\n  </div>\r\n\r\n  <button\r\n    type=\"button\"\r\n    [class]=\"config.btnClass\"\r\n    *ngIf=\"config.btnShow.rotateCounterClockwise\"\r\n    (click)=\"rotateCounterClockwise()\"\r\n  >\r\n    <span [class]=\"config.btnIcons.rotateCounterClockwise\"></span>\r\n  </button>\r\n  <button\r\n    type=\"button\"\r\n    [class]=\"config.btnClass\"\r\n    *ngIf=\"config.btnShow.rotateClockwise\"\r\n    (click)=\"rotateClockwise()\"\r\n  >\r\n    <span [class]=\"config.btnIcons.rotateClockwise\"></span>\r\n  </button>\r\n\r\n  <button\r\n    type=\"button\"\r\n    [class]=\"config.btnClass\"\r\n    *ngIf=\"config.btnShow.zoomOut\"\r\n    (click)=\"zoomOut()\"\r\n  >\r\n    <span [class]=\"config.btnIcons.zoomOut\"></span>\r\n  </button>\r\n  <button\r\n    type=\"button\"\r\n    [class]=\"config.btnClass\"\r\n    *ngIf=\"config.btnShow.zoomIn\"\r\n    (click)=\"zoomIn()\"\r\n  >\r\n    <span [class]=\"config.btnIcons.zoomIn\"></span>\r\n  </button>\r\n\r\n  <button\r\n    type=\"button\"\r\n    [class]=\"config.btnClass\"\r\n    *ngFor=\"let cBtn of config.customBtns\"\r\n    (click)=\"fireCustomEvent(cBtn.name, index)\"\r\n  >\r\n    <span [class]=\"cBtn.icon\"></span>\r\n  </button>\r\n\r\n  <button\r\n    type=\"button\"\r\n    id=\"ngx-fs-btn\"\r\n    [class]=\"config.btnClass\"\r\n    (click)=\"toggleFullscreen()\"\r\n    *ngIf=\"config.allowFullscreen\"\r\n  >\r\n    <span [class]=\"config.btnIcons.fullscreen\"></span>\r\n  </button>\r\n\r\n  <div class=\"nav-button-container\" *ngIf=\"src.length > 1\">\r\n    <button\r\n      type=\"button\"\r\n      [class]=\"config.btnClass\"\r\n      (click)=\"prevImage($event)\"\r\n      [disabled]=\"index === 0\"\r\n    >\r\n      <span [class]=\"config.btnIcons.prev\"></span>\r\n    </button>\r\n    <button\r\n      type=\"button\"\r\n      [class]=\"config.btnClass\"\r\n      (click)=\"nextImage($event)\"\r\n      [disabled]=\"index === src.length - 1\"\r\n    >\r\n      <span [class]=\"config.btnIcons.next\"></span>\r\n    </button>\r\n  </div>\r\n</div>\r\n",
                styles: [".img-container{height:100%;width:100%;overflow:hidden;position:relative}.img-container.align-center{display:flex}.img-container.align-center img{margin:auto!important}.img-container img{z-index:2;margin:0 auto;display:block;max-width:100%;max-height:100%}.img-container button{z-index:99;position:absolute;right:15px}.img-container button:not(:disabled){cursor:pointer}.img-container button.default{height:40px;width:40px;border:1px solid #555;border-radius:50%;background-color:#fff;opacity:.7;transition:opacity .2s}.img-container button.default:hover{opacity:1}.img-container button.default:disabled{opacity:.25}.img-container>button:nth-of-type(1):not(#ngx-fs-btn){bottom:15px}.img-container>button:nth-of-type(2):not(#ngx-fs-btn){bottom:65px}.img-container>button:nth-of-type(3):not(#ngx-fs-btn){bottom:115px}.img-container>button:nth-of-type(4):not(#ngx-fs-btn){bottom:165px}.img-container>button:nth-of-type(5):not(#ngx-fs-btn){bottom:215px}.img-container>button:nth-of-type(6):not(#ngx-fs-btn){bottom:265px}.img-container>button:nth-of-type(7):not(#ngx-fs-btn){bottom:315px}#ngx-fs-btn{top:15px}.nav-button-container{text-align:center;position:absolute;z-index:98;bottom:10px;left:0;right:0}.nav-button-container>button{position:relative;right:0;margin:0 10px}.spinner-container{position:absolute;left:0;right:0;top:0;bottom:0;width:60px;height:60px;margin:auto;padding:10px;background-color:rgba(0,0,0,.4);border-radius:25%}.spinner{border-width:7px;border-style:solid;border-color:#ccc #ccc #222;border-radius:50%;height:100%;width:100%;box-sizing:border-box;-webkit-animation:2s linear infinite rotation;animation:2s linear infinite rotation}@keyframes rotation{from{-webkit-transform:rotate(0)}to{-webkit-transform:rotate(359deg)}}@-webkit-keyframes rotation{from{-webkit-transform:rotate(0)}to{-webkit-transform:rotate(359deg)}}"]
            }),
            __param(0, core.Optional()), __param(0, core.Inject('config'))
        ], ImageViewerComponent);
        return ImageViewerComponent;
    }());

    var ToggleFullscreenDirective = /** @class */ (function () {
        function ToggleFullscreenDirective(el, document) {
            this.el = el;
            this.document = document;
            this.element = this.el.nativeElement;
            this.isEnabled = this.document.fullscreenEnabled;
        }
        ToggleFullscreenDirective.prototype.ngOnChanges = function () {
            if (this.isFullscreen && this.isEnabled) {
                this.openFullscreen();
            }
            else if (this.isEnabled) {
                this.closeFullscreen();
            }
        };
        ToggleFullscreenDirective.prototype.openFullscreen = function () {
            var methodToBeInvoked = this.element.requestFullscreen ||
                this.element.mozRequestFullScreen ||
                this.element.msRequestFullscreen ||
                this.element.webkitRequestFullscreen;
            if (methodToBeInvoked) {
                methodToBeInvoked.call(this.element);
            }
        };
        ToggleFullscreenDirective.prototype.closeFullscreen = function () {
            if (!this.document.fullscreenElement) {
                return;
            }
            var methodToBeInvoked = this.document.exitFullscreen ||
                this.document.mozCancelFullScreen ||
                this.document.webkitExitFullscreen ||
                this.document.msExitFullscreen;
            if (methodToBeInvoked) {
                methodToBeInvoked.call(this.document);
            }
        };
        ToggleFullscreenDirective.ctorParameters = function () { return [
            { type: core.ElementRef },
            { type: undefined, decorators: [{ type: core.Inject, args: [common.DOCUMENT,] }] }
        ]; };
        __decorate([
            core.Input('ngxToggleFullscreen')
        ], ToggleFullscreenDirective.prototype, "isFullscreen", void 0);
        ToggleFullscreenDirective = __decorate([
            core.Directive({
                selector: '[ngxToggleFullscreen]',
            }),
            __param(1, core.Inject(common.DOCUMENT))
        ], ToggleFullscreenDirective);
        return ToggleFullscreenDirective;
    }());

    var ImageViewerModule = /** @class */ (function () {
        function ImageViewerModule() {
        }
        ImageViewerModule_1 = ImageViewerModule;
        ImageViewerModule.forRoot = function (config) {
            return {
                ngModule: ImageViewerModule_1,
                providers: [{ provide: 'config', useValue: config }],
            };
        };
        var ImageViewerModule_1;
        ImageViewerModule = ImageViewerModule_1 = __decorate([
            core.NgModule({
                imports: [common.CommonModule],
                declarations: [ImageViewerComponent, ToggleFullscreenDirective],
                exports: [ImageViewerComponent, ToggleFullscreenDirective],
            })
        ], ImageViewerModule);
        return ImageViewerModule;
    }());

    exports.CustomEvent = CustomEvent;
    exports.ImageViewerComponent = ImageViewerComponent;
    exports.ImageViewerModule = ImageViewerModule;
    exports.ToggleFullscreenDirective = ToggleFullscreenDirective;

    Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=udhsin-ngx-image-viewer.umd.js.map