Why rangy becomes more sluggish when the number of annotations made with function highlighter.highlightSelection (marktype) is growing?
Performance is very good at first but this decreases as they grow annotations.
so,How could I do to improve the performance of the function highlighter.highlightSelection()? because when I were selected many different parts of my html the performance worsens exponentially. if you select a fragment of html very long the performance is going to be worst. I tried to fix this but i had not known how.
Anyone know why this might happen?
Performance degrades because Rangy has to remove and recreate all existing highlights whenever a new highlight is created. This inefficiency is one reason why the highlighter module has never been included as an official Rangy module.
I'm working on a different, character offset-based approach that may improve performance, so there is hope.