Merge pull request #11 from oscardelben/master

Use existing pane if one is found

Author: benmills

README.mkd

@@ -131,3 +131,13 @@ Set the default position of the runner pane.
 ```viml
 let VimuxOrientation = "h"
 ```
+
+### VimuxUseNearestPane
+Use nearest pane (not used by vim) if found instead of running
+split-window.
+Useful if you always have two panes opened and you want Vimux to use the
+existing one.
+
+```viml
+let VimuxUseNearestPane = 1
+```

doc/vimux.txt

@@ -37,7 +37,7 @@ The percent of the screen the split pane Vimux will spawn should take up.
 Default: "20"
 
 ------------------------------------------------------------------------------
-2.2 g:VimuxOrientation                        *VimuxConfiguration_oriengation*
+2.2 g:VimuxOrientation                        *VimuxConfiguration_orientation*
 
 The default orientation of the split tmux pane. This tells tmux to make the
 pane either vertically or horizontally, which is backward from how Vim handles
@@ -50,3 +50,12 @@ Options:
   "h": horizontal
 
 Default: "v"
+
+------------------------------------------------------------------------------
+2.3 g:VimuxUseNearestPane                *VimuxConfiguration_use_nearest_pane*
+
+Use exising pane (not used by vim) if found instead of running split-window.
+
+  let VimuxUseNearestPane = 1
+
+Default: 0

plugin/vimux.vim

@@ -130,7 +130,12 @@ class TmuxSession
   def runner_pane
     if @runner_pane.nil?
       type = Vim.evaluate('exists("g:_VimTmuxInspecting")') != 0
-      _run("split-window -p #{height} #{orientation}")
+      use_nearest_pane = Vim.evaluate('exists("g:VimuxUseNearestPane")') != 0
+      if use_nearest_pane && nearest_inactive_pane_id
+        _run("select-pane -t #{target(:pane => nearest_inactive_pane_id)}")
+      else
+        _run("split-window -p #{height} #{orientation}")
+      end
       @runner_pane = active_pane_id
       Vim.command("let g:_VimTmuxRunnerPane = '#{@runner_pane}'")
     end
@@ -162,6 +167,12 @@ class TmuxSession
     end
   end
 
+  def nearest_inactive_pane_id
+    panes = _run("list-pane").split("\n")
+    pane = panes.find { |p| p !~ /active/ }
+    pane ? pane.split(':').first : nil
+  end
+
   def _move_up_pane
     _run("select-pane -t #{target}")
   end