Completions: need new API to "update" completions

[diegoiast]

The code has a function to ask for completions.

qutepart-cpp/include/qutepart/qutepart.h

Line 370 in 76a8479

inline void setCompletionCallback(CompletionCallback callback) {

And specially here, which actually blocks the main thread:

qutepart-cpp/src/qutepart.cpp

Lines 990 to 995 in 76a8479

	auto completions = completionCallback_(currentWord);
	if (!completions.isEmpty()) {
	completer_->setCustomCompletions(completions);
	}
	}
	completer_->invokeCompletionIfAvailable(false);

However, this API is synchroneous and blocking. While working with a language server we will need an async version. Maybe using a QFuture. Maybe still using a callback. Need to research how this API works before this is decided.