better Interact

--HG--
branch : pmacs2

method/shell.py

@@ -140,10 +140,15 @@ class Interact(Method):
     args = [arg('bname', dt="str", p="Buffer Name: ", dv=lambda w: '*Interact*'),
             arg('cmd', dt="shell", p="Command: ", dv=lambda w: 'bash')]
     modename = None
+    reuse    = False
     def _execute(self, w, **vargs):
         bname = vargs['bname']
         cmd   = vargs['cmd']
         a = w.application
+        if self.reuse and a.has_buffer_name(bname):
+            a.switch_buffer(a.get_buffer_by_name(bname))
+            return
+
         a.close_buffer_by_name(bname)
         b = XTermBuffer(a, 'bash', ['-c', cmd], name=bname,
                         modename=self.modename)

mode/lua.py

@@ -50,23 +50,16 @@ class LuaCheckSyntax(Method):
 class LuaStart(Interact):
     args = []
     modename = 'luapipe'
+    reuse = True
     def _execute(self, w, **vargs):
-        a = w.application
-        if a.has_buffer_name('*Lua*'):
-            a.switch_buffer(a.get_buffer_by_name('*Lua*'))
-        else:
-            Interact._execute(self, w, bname='*Lua*', cmd='lua')
+        Interact._execute(self, w, bname='*Lua*', cmd='lua')
 class LuaLoadFile(Interact):
     args = []
     modename = 'luapipe'
+    reuse = True
     def _execute(self, w, **vargs):
-        a = w.application
-        if a.has_buffer_name('*Lua*'):
-            b = a.get_buffer_by_name('*Lua*')
-            a.switch_buffer(b)
-        else:
-            Interact._execute(self, w, bname='*Lua*', cmd='lua')
-            b = a.get_buffer_by_name('*Lua*')
+        Interact._execute(self, w, bname='*Lua*', cmd='lua')
+        b = w.application.get_buffer_by_name('*Lua*')
         path = w.buffer.path
         b.pipe_write('dofile("' + path + '");\n')