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  1. Qt
  2. QTBUG-70842

Image should automatically reload when it expires

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Details

    • Bug
    • Resolution: Unresolved
    • P3: Somewhat important
    • None
    • 5.12.0 Alpha
    • None

    Description

      Image {
          source: "https://www.yr.no/place/Norway/Oslo/Oslo/Tryvann_skisenter/meteogram_med_observasjon.png"
      }
      
      $ curl -I https://www.yr.no/place/Norway/Oslo/Oslo/Tryvann_skisenter/meteogram_med_observasjon.png
      HTTP/1.1 200 OK
      Content-Type: image/png
      Last-Modified: Mon, 01 Oct 2018 07:48:11 GMT
      Server: Microsoft-IIS/8.5
      X-Powered-By: ASP.NET
      X-Frontendserver: MADMZYRWWW15
      Content-Length: 45783
      X-Varnish: 99618067 98927160
      X-CacheServer: madmzlxyrvarnish05
      Accept-Ranges: bytes
      Cache-Control: public, max-age=0
      Expires: Mon, 01 Oct 2018 08:20:11 GMT
      Date: Mon, 01 Oct 2018 08:20:11 GMT
      Connection: keep-alive
      

      I want to reload that image periodically. I could use a Timer, but forcing it to reload is actually hard (that's QTBUG-14900 / QTBUG-12704). It could be argued that since the server says the image expires after 10 minutes, we should reload it automatically. But maybe automatic reloading should be enabled by some property. This goes for Image, AnimatedImage and any other subclass that can load from a URL (so we can implement it in QQuickImageBase).

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              qt.team.quick.subscriptions Qt Quick and Widgets Team
              srutledg Shawn Rutledge
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                Updated:

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