RSelenium: Not able to run example code

Question

I am new to RSelenium, and am having trouble with the following example from the "Introduction Vignette":

remDr$navigate("http://www.r-project.org")  # Works
webElem <- remDr$findElement("partial link text", "download R")  # Works
webElem$getElementText()  # Works
remDr$mouseMoveToLocation(webElement = webElem)  # DOES NOT Work!

I get the following error:

Error:   Summary: InvalidElementState
     Detail: An element command could not be completed because the element is in an invalid state (e.g. attempting to click a disabled element).
     class: org.openqa.selenium.InvalidElementStateException

Any ideas? I am running Firefox on Mac OS X with R version 3.1.1 (2014-07-10). EDIT: Also does not work on R version 3.1.3 (2015-03-09).

jdharrison · Answer 1 · 2015-03-15T21:07:02.900

library(RSelenium)
startServer()
# remDr <- remoteDriver(browserName = "chrome")
remDr <- remoteDriver()
remDr$open()
remDr$navigate("http://www.r-project.org")  # Works
webElem <- remDr$findElement("partial link text", "download R")  # Works
webElem$getElementText()  # Works

checking versions:

> remDr$getStatus()$build
$version
[1] "2.45.0"

$revision
[1] "5017cb8"

$time
[1] "2015-02-26 23:59:50"

> remDr$sessionInfo$version
[1] "36.0.1"

running:

remDr$mouseMoveToLocation(webElement = webElem)  # DOES NOT Work!

replicates the error

Checking error messages:

remDr$value$localizedMessage
[1] "Cannot perform native interaction: Could not load native events component.\nBuild info: version: '2.45.0', revision: '5017cb8', time: '2015-02-26 23:59:50'\nSystem info: host: 'JACK2', ip: '192.168.59.3', os.name: 'Windows 8.1', os.arch: 'amd64', os.version: '6.3', java.version: '1.8.0_25'\nDriver info: driver.version: unknown"

we see that the moveToLocation method requires nativeEvents. Checking the CHANGELOG for selenium server version 2.45.0 we see:

v2.45.0

Important changes in this release:

Native events in Firefox relied on an API that Mozilla no longer provides. As such, fall back to synthesized events on recent Firefox versions.

Methods requiring native events are currently not functional for the most recent version of firefox (36) and selenium server (2.45.0)

Many thanks. So seems like this will work in another browser. Let me try! — Shambho, Mar 15 '15 at 22:06
Thanks @jdharrison. This is exactly what I am doing. In fact that's the page I was looking just now. — Shambho, Mar 16 '15 at 05:05
I just noticed your comment here (http://stackoverflow.com/questions/27963006/r-selenium-getpagesource-not-returning-source). So just going to try that now. — Shambho, Mar 16 '15 at 05:06

RSelenium: Not able to run example code

1 Answers1

v2.45.0