3 Commits

Author	SHA1	Message	Date
Joe Cheng	27cae0065e	Fix bug where req(cancelOutput=TRUE) would leave things grey ... This was introduced by some changes to shinyapp.js that were necessary before async outputs and sync outputs were held/flushed together. Now that async/sync outputs are held/flushed together, these changes are not necessary and removing them fixes the problem. The test app is in shiny-examples/205-async-req. I also moved a test app from manualtests/async/download.R to shiny-examples/204-async-download.	2018-02-09 11:12:45 -08:00
Joe Cheng	6a1f9677a5	Support async downloadHandler content functions ... If a downloadHandler content function returns a promise (or future) then Shiny will wait for the promise to resolve before serving up the file download.	2018-02-09 11:12:45 -08:00
Joe Cheng	2602dc15b0	Changes to flush cycle to support async ... - Moved (in|de)crementBusyCount calls out of Context and into Observer - decrementBusyCount is (effectively) deferred for async observers until the async operation is complete - invalidateLater didn't force(session), almost certainly was buggy - invalidateLater, reactiveTimer, and manageInputs all now use a new session$cycleStartAction, which delays their effect until observers (including async ones) are done executing	2018-02-09 11:12:45 -08:00