Re: [jbosstools-dev] VPE editor

> Doing it in a seperate thread is a different enhancement I think, but definitly > also worth it. The current idea is just to not update on every stroke since users > would normally write more than one letter and while he is typing the visual view > does not need to be updated 100% live (especially not when its update seem to be > so slow in special cases). > > I have tried to separate of visual editor update on user input into different thread(you can see commnets for JBIDE-675), and I founded following problems: 1) Modifications of nsIDOM* nodes can be done only in UI thread, if it's done in non UI thread it's crashes a eclipse. 2)If we update nodes in UI thread, the user input thread are suspended.

Also i have tried to add some delay after change in source editor before update visual editor, I have experimented with different delay intervals, but this doesn't changed the performance situation and doesn't helped to make vpe more responsible for user.

Other way that can usefull for us to improve performance it's change event processing in VpeController.notifyChanged, for example if we add 's' letter to '<te' and get '<tes' first event what we catch it's delete event and we removing all child nodes for '<te' tag, than we catch add and doesn't processing it, and third event is update event which we catch for parent node of '<tes' and we updating all children nodes and '<tes' too. Instead of all this for example we can collect all this events and in result made only update of '<te' to '<tes', and doesn't update parent node and all children nodes.This three modification event we catch in very short interval.