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added functionality to view a previous version (#5913)

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This commit is contained in:
Urse Daniel
2020-07-27 11:29:29 +03:00
committed by GitHub
parent 8d43155c14
commit 7c09fb1fb9
26 changed files with 337 additions and 111 deletions
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118
lib/core/viewer/services/view-util.service.ts
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@@ -19,6 +19,7 @@ import { Injectable } from '@angular/core';
import { RenditionEntry, RenditionPaging } from '@alfresco/js-api';
import { AlfrescoApiService } from '../../services/alfresco-api.service';
import { LogService } from '../../services/log.service';
import { Subject } from 'rxjs';
@Injectable({
providedIn: 'root'
@@ -54,6 +55,17 @@ export class ViewUtilService {
media: ['video/mp4', 'video/webm', 'video/ogg', 'audio/mpeg', 'audio/ogg', 'audio/wav']
};
/**
* Timeout used for setInterval.
*/
TRY_TIMEOUT: number = 10000;
/**
* Subscribers needed for ViewerComponent to update the viewerType and urlFileContent.
*/
viewerTypeChange: Subject<string> = new Subject<string>();
urlFileContentChange: Subject<string> = new Subject<string>();
constructor(private apiService: AlfrescoApiService,
private logService: LogService) {
}
@@ -167,4 +179,110 @@ export class ViewUtilService {
return new Promise<RenditionEntry>((resolve) => resolve(rendition));
}
async displayNodeRendition(nodeId: string, versionId?: string) {
try {
const rendition = await this.resolveNodeRendition(nodeId, 'pdf', versionId);
if (rendition) {
const renditionId = rendition.entry.id;
if (renditionId === 'pdf') {
this.viewerTypeChange.next('pdf');
} else if (renditionId === 'imgpreview') {
this.viewerTypeChange.next('image');
}
const urlFileContent = versionId ? this.apiService.contentApi.getVersionRenditionUrl(nodeId, versionId, renditionId) :
this.apiService.contentApi.getRenditionUrl(nodeId, renditionId);
this.urlFileContentChange.next(urlFileContent);
}
} catch (err) {
this.logService.error(err);
}
}
private async resolveNodeRendition(nodeId: string, renditionId: string, versionId?: string): Promise<RenditionEntry> {
renditionId = renditionId.toLowerCase();
const supportedRendition: RenditionPaging = versionId ? await this.apiService.versionsApi.listVersionRenditions(nodeId, versionId) :
await this.apiService.renditionsApi.getRenditions(nodeId);
let rendition: RenditionEntry = supportedRendition.list.entries.find((renditionEntry: RenditionEntry) => renditionEntry.entry.id.toLowerCase() === renditionId);
if (!rendition) {
renditionId = 'imgpreview';
rendition = supportedRendition.list.entries.find((renditionEntry: RenditionEntry) => renditionEntry.entry.id.toLowerCase() === renditionId);
}
if (rendition) {
const status: string = rendition.entry.status.toString();
if (status === 'NOT_CREATED') {
try {
if (versionId) {
await this.apiService.versionsApi.createVersionRendition(nodeId, versionId, {id: renditionId}).then(() => {
this.viewerTypeChange.next('in_creation');
});
} else {
await this.apiService.renditionsApi.createRendition(nodeId, {id: renditionId}).then(() => {
this.viewerTypeChange.next('in_creation');
});
}
rendition = await this.waitNodeRendition(nodeId, renditionId, versionId);
} catch (err) {
this.logService.error(err);
}
}
}
return rendition;
}
private async waitNodeRendition(nodeId: string, renditionId: string, versionId?: string): Promise<RenditionEntry> {
let currentRetry: number = 0;
return new Promise<RenditionEntry>((resolve, reject) => {
const intervalId = setInterval(() => {
currentRetry++;
if (this.maxRetries >= currentRetry) {
if (!versionId) {
this.apiService.versionsApi.getVersionRendition(nodeId, versionId, renditionId).then((rendition: RenditionEntry) => {
this.handleNodeRendition(rendition, nodeId, renditionId, versionId);
clearInterval(intervalId);
return resolve(rendition);
}, () => {
this.viewerTypeChange.next('error_in_creation');
return reject();
});
} else {
this.apiService.renditionsApi.getRendition(nodeId, renditionId).then((rendition: RenditionEntry) => {
this.handleNodeRendition(rendition, nodeId, renditionId);
clearInterval(intervalId);
return resolve(rendition);
}, () => {
this.viewerTypeChange.next('error_in_creation');
return reject();
});
}
} else {
this.viewerTypeChange.next('error_in_creation');
clearInterval(intervalId);
}
}, this.TRY_TIMEOUT);
});
}
private async handleNodeRendition(rendition: RenditionEntry, nodeId: string, renditionId: string, versionId?: string) {
const status: string = rendition.entry.status.toString();
if (status === 'CREATED') {
if (renditionId === 'pdf') {
this.viewerTypeChange.next('pdf');
} else if (renditionId === 'imgpreview') {
this.viewerTypeChange.next('image');
}
const urlFileContent = versionId ? this.apiService.contentApi.getVersionRenditionUrl(nodeId, versionId, renditionId) :
this.apiService.contentApi.getRenditionUrl(nodeId, renditionId);
this.urlFileContentChange.next(urlFileContent);
}
}
}