DirectoryContentsList request method

Hi Jules,

Would you consider adding a method to the DirectoryContentsList that returns the index of a given file? Either

/** Returns true if the list contains the specified file, and also returns its index if
 it was found. */
bool contains (const File&, int& index) const;


/** Returns the index of the specified file, or -1 if that file is not in the list.
int indexOf (const File& fileToFind) const;

would do. This would help avoid redundant O(N) searches through large list.

Hmm, not keen on that idea. The way this class works is for it to be continuously updating the list on a thread, so these indexes can’t be relied on to stay constant - I’d rather not encourage people to use them more than necessary.