Support scrollSubstringTo, scrollSubstringToPoint
Hello,
AT-SPI got enriched with IA2-inspired scrollSubstringTo, scrollSubstringToPoint interfaces, which allow an AT tool to request that a given part of the GUI becomes visible by scrolling whatever is needed to scroll to make it visible.
The support for gtk widgets is tracked in gtk#1625 , but evince also needs to support this for its pdf rendering widget: when scrollSubstringTo and scrollSubstringToPoint are used on the AtkText interface of this widget, evince should bring the piece of text into view.
Samuel