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ngx-doc-viewer

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import { __decorate } from "tslib"; import { Component, Input, NgZone, OnDestroy, OnChanges, SimpleChanges, Output } from '@angular/core'; import { DomSanitizer, SafeResourceUrl, SafeStyle } from '@angular/platform-browser'; import { take } from 'rxjs/operators'; import { interval } from 'rxjs'; import { EventEmitter } from '@angular/core'; var NgxDocViewerComponent = /** @class */ (function () { function NgxDocViewerComponent(domSanitizer, ngZone) { this.domSanitizer = domSanitizer; this.ngZone = ngZone; this.fullUrl = null; this.checkIFrameSubscription = null; this.configuredViewer = 'google'; this.loaded = new EventEmitter(); this.url = ''; this.googleCheckInterval = 3000; } Object.defineProperty(NgxDocViewerComponent.prototype, "viewer", { set: function (viewer) { var v = viewer.toLowerCase().trim(); if (v !== 'google' && v !== 'office') { console.error("Unsupported viewer: '" + viewer + "'. Supported viewers: google, office"); } this.configuredViewer = v; }, enumerable: true, configurable: true }); NgxDocViewerComponent.prototype.ngOnDestroy = function () { if (this.checkIFrameSubscription) { this.checkIFrameSubscription.unsubscribe(); } }; NgxDocViewerComponent.prototype.ngOnChanges = function (changes) { var _this = this; if ((changes.url && changes.url.currentValue !== changes.url.previousValue) || changes.viewer && changes.viewer.currentValue !== changes.viewer.previousValue) { var u = this.url.indexOf('/') ? encodeURIComponent(this.url) : this.url; this.fullUrl = this.domSanitizer.bypassSecurityTrustResourceUrl(this.configuredViewer === 'google' ? "https://docs.google.com/gview?url=" + u + "&embedded=true" : "https://view.officeapps.live.com/op/embed.aspx?src=" + u); // see: https://stackoverflow.com/questions/40414039/google-docs-viewer-returning-204-responses-no-longer-working-alternatives // hack to reload iframe if it's not loaded. // would maybe be better to use view.officeapps.live.com but seems not to work with sas token. if (this.configuredViewer === 'google') { this.ngZone.runOutsideAngular(function () { var iframe = document.querySelector('iframe'); _this.checkIFrame(iframe); // if it's not loaded after the googleIntervalCheck, then open load again. _this.checkIFrameSubscription = interval(_this.googleCheckInterval) .pipe(take(Math.round(_this.googleCheckInterval === 0 ? 0 : 20000 / _this.googleCheckInterval))) .subscribe(function () { if (iframe == null) { iframe = document.querySelector('iframe'); _this.checkIFrame(iframe); } _this.reloadIFrame(iframe); }); }); } } }; NgxDocViewerComponent.prototype.checkIFrame = function (iframe) { var _this = this; if (iframe) { iframe.onload = function () { _this.loaded.emit(null); if (_this.checkIFrameSubscription) { _this.checkIFrameSubscription.unsubscribe(); } }; } }; NgxDocViewerComponent.prototype.reloadIFrame = function (iframe) { if (iframe) { console.log('reloading..'); iframe.src = iframe.src; } }; NgxDocViewerComponent.ctorParameters = function () { return [ { type: DomSanitizer }, { type: NgZone } ]; }; __decorate([ Output() ], NgxDocViewerComponent.prototype, "loaded", void 0); __decorate([ Input() ], NgxDocViewerComponent.prototype, "url", void 0); __decorate([ Input() ], NgxDocViewerComponent.prototype, "googleCheckInterval", void 0); __decorate([ Input() ], NgxDocViewerComponent.prototype, "viewer", null); NgxDocViewerComponent = __decorate([ Component({ selector: 'ngx-doc-viewer', template: "<iframe id=\"iframe\" *ngIf=\"fullUrl\" frameBorder=\"0\" [src]=\"fullUrl\"></iframe> ", styles: [":host {\n display: block;\n }\n iframe {\n width: 100%;\n height: 100%;\n }\n "] }) ], NgxDocViewerComponent); 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Supported viewers: google, office`);\r\n        }\r\n        this.configuredViewer = v;\r\n    }\r\n\r\n    ngOnDestroy(): void {\r\n        if (this.checkIFrameSubscription) {\r\n            this.checkIFrameSubscription.unsubscribe();\r\n        }\r\n    }\r\n\r\n    ngOnChanges(changes: SimpleChanges): void {\r\n        if ((changes.url && changes.url.currentValue !== changes.url.previousValue) ||\r\n            changes.viewer && changes.viewer.currentValue !== changes.viewer.previousValue) {\r\n            const u = this.url.indexOf('/') ? encodeURIComponent(this.url) : this.url;\r\n            this.fullUrl = this.domSanitizer.bypassSecurityTrustResourceUrl(this.configuredViewer === 'google' ?\r\n                `https://docs.google.com/gview?url=${u}&embedded=true` :\r\n                `https://view.officeapps.live.com/op/embed.aspx?src=${u}`);\r\n            // see: https://stackoverflow.com/questions/40414039/google-docs-viewer-returning-204-responses-no-longer-working-alternatives\r\n            // hack to reload iframe if it's not loaded.\r\n            // would maybe be better to use view.officeapps.live.com but seems not to work with sas token.\r\n            if (this.configuredViewer === 'google') {\r\n                this.ngZone.runOutsideAngular(() => {\r\n                    let iframe = document.querySelector('iframe');\r\n                    this.checkIFrame(iframe);\r\n                    // if it's not loaded after the googleIntervalCheck, then open load again.\r\n                    this.checkIFrameSubscription = interval(this.googleCheckInterval)\r\n                        .pipe(\r\n                            take(Math.round(this.googleCheckInterval === 0 ? 0 : 20000 / this.googleCheckInterval)))\r\n                        .subscribe(() => {\r\n                            if (iframe == null) {\r\n                                iframe = document.querySelector('iframe');\r\n                                this.checkIFrame(iframe);\r\n                            }\r\n                            this.reloadIFrame(iframe);\r\n                        });\r\n                });\r\n            }\r\n        }\r\n    }\r\n    checkIFrame(iframe: HTMLIFrameElement) {\r\n        if (iframe) {\r\n            iframe.onload = () => {\r\n                this.loaded.emit(null);\r\n                if (this.checkIFrameSubscription) {\r\n                    this.checkIFrameSubscription.unsubscribe();\r\n                }\r\n            };\r\n        }\r\n    }\r\n\r\n    reloadIFrame(iframe: HTMLIFrameElement) {\r\n        if (iframe) {\r\n            console.log('reloading..');\r\n            iframe.src = iframe.src;\r\n        }\r\n    }\r\n}\r\n"]}