fixing boolean _showingPages toggle logic.
fixing boolean _showingPages toggle logic.

Teino1978-Corp/Teino1978-Corp-documentcloud,roberttdev/dactyl4,moodpo/documentcloud,dannguyen/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,roberttdev/dactyl4,documentcloud/documentcloud,dannguyen/documentcloud,roberttdev/dactyl,ivarvong/documentcloud,gunjanmodi/documentcloud,roberttdev/dactyl,roberttdev/dactyl,gunjanmodi/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,moodpo/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,ivarvong/documentcloud,gunjanmodi/documentcloud,ivarvong/documentcloud,monofox/documentcloud,monofox/documentcloud,moodpo/documentcloud,roberttdev/dactyl4,documentcloud/documentcloud,ivarvong/documentcloud,roberttdev/dactyl4,gunjanmodi/documentcloud,dannguyen/documentcloud,dannguyen/documentcloud,documentcloud/documentcloud,monofox/documentcloud,documentcloud/documentcloud,monofox/documentcloud,moodpo/documentcloud