Use macOS Automator to screenshot, name and save in a folder, and continue

Question

I spent 3 days and still have trouble using Automator in my obsolete 2nd hand iMac iOS 10.13. My aim is simple, to achieve this:

1. take a screenshot of part of a webpage (I will customize size of screen)
2. name the screenshot file ( i will name 1,2,3,4 myself)
3. save in a folder
4. continue the above repetitive actions 3000 times

Very frustrated...please help...really do not know how to use the Automator... i tried Take a Screenshot, save to pdf, rename, xxx folder action...

Alternatively i tried other options ...such as reconfigure my right-click mouse, create a floatbutton, change my menu bar...

Answer 1

Personally i would use ObjC/Swift to achieve this. The upside of doing this is that the program doesn't interrupt your browser and you can still browse or do other things with the computer while the script is running

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"www.example.com]];
[_WebView loadRequest:request];


- (void)capture
{
    WKSnapshotConfiguration *conf = [[WKSnapshotConfiguration alloc] init];
    conf.rect = NSRectFromString([_CaptureCoordinatesField stringValue]);
    [_WebView takeSnapshotWithConfiguration:conf completionHandler:
     (^(NSImage *snapshotImage, NSError *error) {
        dispatch_async(dispatch_get_main_queue(), ^{
            NSData *imageData = [snapshotImage TIFFRepresentation];
            [imageData writeToFile:@"YOUR FILE" atomically:YES];
        });
    })];
}

To do it in Automator you could do something like this (This was tested on MacOS 12.0.1, may or may not have problems with previous MacOS version):