Dowonload URL in global temporary directory when opening it in external application
requested to merge stefanocrocco/konqueror:dont-download-file-to-open-externally-in-temp-dir into master
When the requesting part wants to download the URL itself and the URL should then be opened in an external application, downloading the URL in a Konqueror-specific temporary directory (/tmp/WebEnginePartDownloadManager* for example) could lead to problems if Konqueror was closed before the external application, since the directory, and the file itself, would be deleted.
To avoid this, in this situation the URL is downloaded in the global temporary directory (/tmp/) instead. The downside is that, if the external application doesn't support the --tmpfile switch, the file won't be automatically removed.