optional viewport specification added to job.data

app/workers/media/job/webpage-screenshot.js

@@ -70,6 +70,12 @@ class WebpageScreenshotJob extends SiteWorkerProcess {
     const imageFilename = path.join(process.env.DTP_IMAGE_WORK_PATH, 'webpage-screenshot', `${documentId}.jpg`);
     this.log.info('job received to capture webpage screenshot', { modelName, documentId, pageUrl });
 
+    job.data.viewport = Object.assign({
+      width: 720,
+      height: 600,
+      deviceScaleFactor: 1.0,
+    }, job.data.viewport);
+
     try {
       job.data.document = await model.findById(documentId);
       if (!job.data.document) {
@@ -83,11 +89,7 @@ class WebpageScreenshotJob extends SiteWorkerProcess {
       }
 
       await job.page.setUserAgent(userAgent.toString());
-      await job.page.setViewport({
+      await job.page.setViewport(job.data.viewport);
-        width: 720,
-        height: 600,
-        deviceScaleFactor: 1.0,
-      });
       await job.page.goto(pageUrl, { waitUntil: 'networkidle2' });
 
       this.jobLog(job, 'capturing screenshot to file');
@@ -95,7 +97,7 @@ class WebpageScreenshotJob extends SiteWorkerProcess {
         path: imageFilename,
         type: 'jpeg',
         quality: 85,
-        fullPage: false,
+        fullPage: job.data.fullPage || false,
       });
 
       this.jobLog(job, 'uploading screenshot to storage and database');