So :bprev was failing to jump back to the right buffer. I dont fully
understand this yet, but I'm fairly sure this is because there is a
magic <directory> buffer that we delete when creating a wintree :-/
Anyway, we are explicitly storing the prev buffer again - and updating
it when reusing treewins. It's worky, but there may be a superior way...
Some will have a "NERDTree" buffer variable and others will not. In the
ones that do, getbufvar will return a dictionary. getbufvar will return
an empty string from the other buffers. When looping through the buffers,
let will throw an error if nt already exists and is a different type than
what is trying to be put into it. This easily can be illustrated by these
two statements:
:let x = ""
:let x = {}
E706: Variable type mismatch for: x
This commit gets rid of the variable before setting it so that the
mismatch cannot occur.
This is the counterpart to a PR I just submitted to undotree
(https://github.com/mbbill/undotree/pull/61).
I noticed that my statusline doesn't update properly when using NERDTree to move
between revisions of a file with `go` or `gi`
(https://github.com/wincent/wincent/issues/16). I established that this was
because it was using `'eventignore'` to suppress all autocmds, which in turn
prevents the statusline from updating.
Commenting out the `set eventignore=all` line makes the failure to update go
away, at the cost of firing more autocmds.
I considered adding an option for opting out of this behavior (eg. `let
g:NERDTreeEventignore=0` or something), or rearchitecting my statusline to use
an approach like vim-airline does based on CursorMoved autocmds (see
https://github.com/vim-airline/vim-airline/issues/82; see also
30f078daf5/plugin/airline.vim (L36-L50)
for current implementation), but then realized that a simpler fix is to have
NERDTree just disable only the autocmds that it uses instead of disabling all of
them.
This is probably not enough to unbreak every bit of code in the world that
depends on those autocmds, but it does at least unbreak my use case, because it
allows my `WinLeave` autocmd to run and update the statusline.
Just disable the warning for now. The bookmark system will be replaced
with the project system soon - so no sense putting much effort into
this.
Closes#168
When opening a file we will "reuse" a window if the buffer is already
open somewhere.
Add an option to NERDTreeOpener to configure it to not reuse windows
across tabs.
Expand the event system to have explicit Event objects and potentially
many Notifiers. Previously they was only one notifier and one (implied)
event.
A lot of this is stolen from #358.
Add 2 new classes and move code into them from autoload:
* NERDTree. Each nerdtree buffer now has a NERDTree object that holds
the root node and will old other util functions
* UI. Each NERDTree object holds a UI object which is responsible for
rendering, getting the current node, etc
Still a fair few methods to sort through in autoload (many of which will
end up in the above classes) - need sleep though.
