Selection mode is enabled in case that selection is performed by javascript or keyboa...

Selection mode is enabled in case that selection is performed by javascript or keyboard 'ctrl+a'.

[Title] Selection mode is enabled in case that selection is performed by javascript or keyboard 'ctrl+a'.
[Issue#] N_SE-49925
[Problem] When selection is performed by javascript or keyboard 'ctrl+A',
          selection handle is not displayed.
[Cause] Not implemented in this case.
[Solution] Although selection mode is false, if there is selection range,
           selection mode is enabled and handle is displayed.

Change-Id: Ib8c0722e1bc8d67cf5fe26d373bbcef7c1973daf