^On the other hand, there's "Balance of Terror," where the Enterprise retreated at "emergency warp speed" from the Romulan plasma bolt that was also traveling at warp speed somehow. That suggests that the type of warp drive used during TOS did allow direct interaction/combat. Which is why I only said that the TOS movies don't show warp combat.
Wasn't the Orion ship in "Journey to Babel" making attack runs on the Enterprise at warp speed as well?
For the movie era, the only example I can think of is the Excelsior being struck by Klingon torpedoes during "Flashback" (VGR).