@clarivate/angular-image-viewer
Version:
A configurable Angular image viewer component, compatible with Angular 7.x+
514 lines (482 loc) • 30.6 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('@angular/cdk/drag-drop'), require('@angular/common')) :
typeof define === 'function' && define.amd ? define('@clarivate/angular-image-viewer', ['exports', '@angular/core', '@angular/cdk/drag-drop', '@angular/common'], factory) :
(global = global || self, factory((global.clarivate = global.clarivate || {}, global.clarivate['angular-image-viewer'] = {}), global.ng.core, global.ng.cdk.dragDrop, global.ng.common));
}(this, (function (exports, core, dragDrop, common) { 'use strict';
/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
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var CustomImageEvent = /** @class */ (function () {
function CustomImageEvent(name, imageIndex) {
this.name = name;
this.imageIndex = imageIndex;
}
return CustomImageEvent;
}());
var DEFAULT_CONFIG = {
btnClass: 'default',
zoomFactor: 0.1,
containerBackgroundColor: '#e4dede',
primaryColor: '',
wheelZoom: false,
allowFullscreen: true,
allowKeyboardNavigation: 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-refresh',
rotateCounterClockwise: 'fa fa-undo',
next: 'fa fa-chevron-right',
prev: 'fa fa-chevron-left',
fullscreen: 'fa fa-arrows-alt',
}
};
var AngularImageViewerComponent = /** @class */ (function () {
function AngularImageViewerComponent(moduleConfig) {
this.moduleConfig = moduleConfig;
this.index = 0;
this.footerTexts = [
'Image',
'of',
'View previous or next image',
'using < > on the keyboard'
];
this.indexChange = new core.EventEmitter();
this.configChange = new core.EventEmitter();
this.customImageEvent = new core.EventEmitter();
this.styleHeight = '98vh';
this.style = { transform: '', msTransform: '', oTransform: '', webkitTransform: '' };
this.fullscreen = false;
this.loading = true;
this.isDragOn = false;
this.scale = 1;
this.rotation = 0;
this.hovered = false;
}
AngularImageViewerComponent.prototype.ngOnChanges = function (changes) {
if (changes.screenHeightOccupied) {
this.styleHeight = 'calc(98vh - ' + this.screenHeightOccupied + 'px)';
}
else if (changes.index) {
this.reset();
}
};
AngularImageViewerComponent.prototype.ngOnInit = function () {
var merged = this.mergeConfig(DEFAULT_CONFIG, this.moduleConfig);
this.config = this.mergeConfig(merged, this.config);
this.triggerConfigBinding();
};
AngularImageViewerComponent.prototype.nextImage = function (event) {
if (this.canNavigate(event) && this.index < this.src.length - 1) {
this.loading = true;
this.index++;
this.triggerIndexBinding();
this.fireCustomEvent('next', this.index);
this.reset();
}
};
AngularImageViewerComponent.prototype.prevImage = function (event) {
if (this.canNavigate(event) && this.index > 0) {
this.loading = true;
this.index--;
this.triggerIndexBinding();
this.fireCustomEvent('prev', this.index);
this.reset();
}
};
AngularImageViewerComponent.prototype.zoomIn = function () {
this.scale *= (1 + this.config.zoomFactor);
this.fireCustomEvent('zoomIn', this.scale);
this.updateStyle();
};
AngularImageViewerComponent.prototype.zoomOut = function () {
if (this.scale > this.config.zoomFactor) {
this.scale /= (1 + this.config.zoomFactor);
}
this.fireCustomEvent('zoomOut', this.scale);
this.updateStyle();
};
AngularImageViewerComponent.prototype.scrollZoom = function (evt) {
if (this.config.wheelZoom) {
evt.deltaY > 0 ? this.zoomOut() : this.zoomIn();
return false;
}
};
AngularImageViewerComponent.prototype.rotateClockwise = function () {
this.rotation += 90;
this.fireCustomEvent('rotateClockwise', this.rotation);
this.updateStyle();
};
AngularImageViewerComponent.prototype.rotateCounterClockwise = function () {
this.rotation -= 90;
this.updateStyle();
};
AngularImageViewerComponent.prototype.onLoad = function () {
this.loading = false;
};
AngularImageViewerComponent.prototype.onLoadStart = function () {
this.loading = true;
};
AngularImageViewerComponent.prototype.imageNotFound = function () {
};
AngularImageViewerComponent.prototype.onDragStart = function (evt) {
if (evt.source._dragRef._initialTransform && evt.source._dragRef._initialTransform.length > 0) {
var myTranslate = evt.source._dragRef._initialTransform.split(' rotate')[0];
var myRotate = this.style.transform.split(' rotate')[1];
evt.source._dragRef._initialTransform = myTranslate + " rotate" + myRotate;
}
else {
evt.source._dragRef._initialTransform = this.style.transform;
}
};
AngularImageViewerComponent.prototype.toggleFullscreen = function () {
this.fullscreen = !this.fullscreen;
if (!this.fullscreen) {
this.reset();
}
};
AngularImageViewerComponent.prototype.triggerIndexBinding = function () {
this.indexChange.emit(this.index);
};
AngularImageViewerComponent.prototype.triggerConfigBinding = function () {
this.configChange.next(this.config);
};
AngularImageViewerComponent.prototype.fireCustomEvent = function (name, imageIndex) {
this.customImageEvent.emit(new CustomImageEvent(name, imageIndex));
};
AngularImageViewerComponent.prototype.reset = function () {
this.scale = 1;
this.rotation = 0;
this.updateStyle();
this.cdkDrag.reset();
};
AngularImageViewerComponent.prototype.onMouseOver = function () {
this.hovered = true;
};
AngularImageViewerComponent.prototype.onMouseLeave = function () {
this.hovered = false;
};
AngularImageViewerComponent.prototype.canNavigate = function (event) {
if (event.type === 'keyup') {
return (this.config.allowKeyboardNavigation && this.hovered);
}
else if (event.type === 'click') {
return this.hovered;
}
};
AngularImageViewerComponent.prototype.updateStyle = function () {
this.style.transform = "rotate(" + this.rotation + "deg) scale(" + this.scale + ")";
};
AngularImageViewerComponent.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;
};
AngularImageViewerComponent.ctorParameters = function () { return [
{ type: undefined, decorators: [{ type: core.Optional }, { type: core.Inject, args: ['config',] }] }
]; };
__decorate([
core.ViewChild(dragDrop.CdkDrag, { static: true })
], AngularImageViewerComponent.prototype, "cdkDrag", void 0);
__decorate([
core.Input()
], AngularImageViewerComponent.prototype, "src", void 0);
__decorate([
core.Input()
], AngularImageViewerComponent.prototype, "config", void 0);
__decorate([
core.Input()
], AngularImageViewerComponent.prototype, "screenHeightOccupied", void 0);
__decorate([
core.Input()
], AngularImageViewerComponent.prototype, "index", void 0);
__decorate([
core.Input()
], AngularImageViewerComponent.prototype, "imageName", void 0);
__decorate([
core.Input()
], AngularImageViewerComponent.prototype, "footerTexts", void 0);
__decorate([
core.Output()
], AngularImageViewerComponent.prototype, "indexChange", void 0);
__decorate([
core.Output()
], AngularImageViewerComponent.prototype, "configChange", void 0);
__decorate([
core.Output()
], AngularImageViewerComponent.prototype, "customImageEvent", void 0);
__decorate([
core.HostListener('window:keyup.ArrowRight', ['$event'])
], AngularImageViewerComponent.prototype, "nextImage", null);
__decorate([
core.HostListener('window:keyup.ArrowLeft', ['$event'])
], AngularImageViewerComponent.prototype, "prevImage", null);
__decorate([
core.HostListener('mouseover')
], AngularImageViewerComponent.prototype, "onMouseOver", null);
__decorate([
core.HostListener('mouseleave')
], AngularImageViewerComponent.prototype, "onMouseLeave", null);
AngularImageViewerComponent = __decorate([
core.Component({
// tslint:disable-next-line:component-selector
selector: 'angular-image-viewer',
template: "<div [appScreenfull]=\"fullscreen\" class=\"img-container\" [style.backgroundColor]=\"config.containerBackgroundColor\"\n (wheel)=\"scrollZoom($event)\">\n <div class=\"image-name\" *ngIf=\"imageName\">\n <span>{{imageName}}</span>\n </div>\n\n <div cdkDrag class=\"drag-element\">\n <img [src]=\"src[index]\" [ngStyle]=\"style\" alt=\"\"\n (cdkDragStarted)=\"onDragStart($event)\"\n (load)=\"onLoad()\" (loadstart)=\"onLoadStart()\" (error)=\"imageNotFound()\" />\n </div>\n\n <div class=\"spinner-container\" *ngIf=\"loading\">\n <div class=\"spinner\"></div>\n </div>\n\n <div class=\"button-container\">\n <button type=\"button\" id=\"ngx-fs-btn\" [class]=\"config.btnClass\" (click)=\"toggleFullscreen()\"\n [style.color]=\"config.primaryColor\" *ngIf=\"config.allowFullscreen\">\n <span [class]=\"config.btnIcons.fullscreen\"></span>\n </button>\n\n <div class=\"button-container-bottom\">\n <button type=\"button\" [class]=\"config.btnClass\" *ngFor=\"let cBtn of config.customBtns\"\n [style.color]=\"config.primaryColor\" (click)=\"fireCustomEvent(cBtn.name, index)\">\n <span [class]=\"cBtn.icon\"></span>\n </button>\n\n <button type=\"button\" [class]=\"config.btnClass\" *ngIf=\"config.btnShow.rotateCounterClockwise\"\n [style.color]=\"config.primaryColor\" (click)=\"rotateCounterClockwise()\">\n <span [class]=\"config.btnIcons.rotateCounterClockwise\"></span>\n </button>\n <button type=\"button\" [class]=\"config.btnClass\" *ngIf=\"config.btnShow.rotateClockwise\"\n [style.color]=\"config.primaryColor\" (click)=\"rotateClockwise()\">\n <span [class]=\"config.btnIcons.rotateClockwise\"></span>\n </button>\n\n <div class=\"button-zoom-in-out-container\">\n <button type=\"button\" [class]=\"config.btnClass\" *ngIf=\"config.btnShow.zoomIn\"\n [style.color]=\"config.primaryColor\" (click)=\"zoomIn()\">\n <span [class]=\"config.btnIcons.zoomIn\"></span>\n </button>\n <button type=\"button\" [class]=\"config.btnClass\" *ngIf=\"config.btnShow.zoomOut\"\n [style.color]=\"config.primaryColor\" (click)=\"zoomOut()\">\n <span [class]=\"config.btnIcons.zoomOut\"></span>\n </button>\n </div>\n </div>\n </div>\n\n <div class=\"nav-button-container\" *ngIf=\"src.length > 1\">\n <button type=\"button\" #prevImg [class]=\"config.btnClass\" (click)=\"prevImage($event); prevImg.blur()\"\n [style.color]=\"config.primaryColor\" [disabled]=\"index === 0\">\n <span [class]=\"config.btnIcons.prev\"></span>\n </button>\n <button type=\"button\" #nextImg [class]=\"config.btnClass\" (click)=\"nextImage($event); nextImg.blur()\"\n [style.color]=\"config.primaryColor\" [disabled]=\"index === src.length - 1\">\n <span [class]=\"config.btnIcons.next\"></span>\n </button>\n </div>\n <div class=\"footer-section\">\n <div class=\"image-txt-count-left-align\"><span>{{footerTexts[0]}} {{index + 1}} {{footerTexts[1]}} {{src.length}}</span></div>\n <div class=\"footer-txt-right-align\">\n <span class=\"footer-txt-right-align-title\" [style.color]=\"config.primaryColor\">{{footerTexts[2]}}</span>\n <span class=\"footer-txt-right-align-note\">{{footerTexts[3]}}</span>\n </div>\n </div>\n</div>\n",
styles: [".img-container{position:relative;width:100%;height:100%;display:-webkit-box;display:flex;-webkit-box-pack:center;justify-content:center;-webkit-box-align:center;align-items:center;overflow:hidden}.img-container .drag-element{position:absolute;top:35px;right:78px;width:calc(100% - 156px);height:calc(100% - 85px);cursor:-webkit-grab;cursor:grab;text-align:center}.img-container .drag-element img{padding:0;max-width:100%;max-height:100%}.img-container .drag-element:active{cursor:-webkit-grabbing;cursor:grabbing}.img-container button{z-index:99}.img-container button:not(:disabled){cursor:pointer}#ngx-fs-btn{top:15px}button.default{height:24px;width:24px;border-radius:31px;opacity:.9;-webkit-transition:opacity .2s;transition:opacity .2s;font-size:12px;background:inherit;background-color:#fff;border:none;box-shadow:0 0 5px rgba(0,0,0,.3490196078)}button.default:focus{outline:0;opacity:1}button.default:hover{opacity:1}button.default:disabled{opacity:.3}.nav-button-container>button{position:relative;right:0;margin:0 10px}.nav-button-container{text-align:right;position:absolute;z-index:98;bottom:60px;left:0;right:10px}.nav-button-container button.default{height:30px;margin:0;font-size:14px}.nav-button-container button.default:first-child{border-radius:4px 0 0 4px}.nav-button-container button.default:last-child{margin-left:10px;border-radius:0 4px 4px 0}.button-container{position:absolute;top:10px;right:10px;width:24px;height:calc(100% - 115px);z-index:98}.button-container .button-container-bottom{position:absolute;bottom:0}.button-container .button-container-bottom button.default{margin-top:10px}.button-container .button-container-bottom .button-zoom-in-out-container{margin-top:15px}.button-container .button-container-bottom .button-zoom-in-out-container button.default{margin:0;border-radius:0;height:30px}.button-container .button-container-bottom .button-zoom-in-out-container button.default:first-child{margin-bottom:1px}.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}.footer-section{position:absolute;bottom:10px;left:0;width:100%;line-height:18px;z-index:98}.footer-section .image-txt-count-left-align{float:left;padding:0 10px;font-family:\"Source Sans Pro SemiBold\";font-size:14;color:#333}.footer-section .footer-txt-right-align{float:right;padding:0 10px;text-align:right}.footer-section .footer-txt-right-align span.footer-txt-right-align-title{display:block;font-family:\"Source Sans Pro SemiBold\";font-size:14}.footer-section .footer-txt-right-align span.footer-txt-right-align-note{color:#767676;font-family:\"Source Sans Pro\";font-size:12}.image-name{position:absolute;top:10px;left:10px;z-index:98;font-family:\"Source Sans Pro SemiBold\";font-size:16;color:#333}@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'))
], AngularImageViewerComponent);
return AngularImageViewerComponent;
}());
// import * as screenfull from 'screenfull';
var FullScreenDirective = /** @class */ (function () {
function FullScreenDirective(el) {
this.el = el;
}
FullScreenDirective.prototype.ngOnChanges = function (changes) {
// tslint:disable-next-line: no-string-literal
if (!changes['fullscreenState'].isFirstChange()) {
if (this.fullscreenState) {
var element = this.el.nativeElement;
// tslint:disable-next-line: max-line-length
var requestMethod = element.requestFullscreen || element.webkitRequestFullScreen || element.mozRequestFullScreen || element.msRequestFullScreen;
if (requestMethod) { // Native full screen.
requestMethod.call(element);
}
else {
console.log('FullScreen Request Method Not Supported on this browser.');
}
}
else {
var element = document;
// tslint:disable-next-line: max-line-length
var requestMethod = element.cancelFullscreen || element.webkitExitFullscreen || element.webkitCancelFullScreen || element.mozCancelFullScreen || element.msExitFullScreen;
if (requestMethod) { // Native Cancel full screen.
requestMethod.call(element);
}
else {
console.error('Angular Image Viewer: FullScreen Cancel Request Method Not Supported on this browser.');
}
}
}
};
FullScreenDirective.prototype.ngOnInit = function () {
};
FullScreenDirective.ctorParameters = function () { return [
{ type: core.ElementRef }
]; };
__decorate([
core.Input('appScreenfull')
], FullScreenDirective.prototype, "fullscreenState", void 0);
FullScreenDirective = __decorate([
core.Directive({
selector: '[appScreenfull]'
})
], FullScreenDirective);
return FullScreenDirective;
}());
var AngularImageViewerModule = /** @class */ (function () {
function AngularImageViewerModule() {
}
AngularImageViewerModule = __decorate([
core.NgModule({
declarations: [AngularImageViewerComponent, FullScreenDirective],
imports: [
common.CommonModule,
dragDrop.DragDropModule
],
exports: [AngularImageViewerComponent, FullScreenDirective, dragDrop.DragDropModule]
})
], AngularImageViewerModule);
return AngularImageViewerModule;
}());
exports.AngularImageViewerComponent = AngularImageViewerComponent;
exports.AngularImageViewerModule = AngularImageViewerModule;
exports.CustomImageEvent = CustomImageEvent;
exports.FullScreenDirective = FullScreenDirective;
Object.defineProperty(exports, '__esModule', { value: true });
})));
//# sourceMappingURL=clarivate-angular-image-viewer.umd.js.map