1 files changed, 26 insertions, 24 deletions
diff --git a/app.lua b/app.lua
index ddc175d..cac1303 100644
--- a/app.lua
+++ b/app.lua
@@ -207,22 +207,22 @@ function App.modifier_down(key)
 end
 
 App.fake_mouse_state = {x=-1, y=-1}  -- x,y always set
-function App.fake_mouse_press(x,y, button)
+function App.fake_mouse_press(x,y, mouse_button)
   App.fake_mouse_state.x = x
   App.fake_mouse_state.y = y
-  App.fake_mouse_state[button] = true
+  App.fake_mouse_state[mouse_button] = true
 end
-function App.fake_mouse_release(x,y, button)
+function App.fake_mouse_release(x,y, mouse_button)
   App.fake_mouse_state.x = x
   App.fake_mouse_state.y = y
-  App.fake_mouse_state[button] = nil
+  App.fake_mouse_state[mouse_button] = nil
 end
 function App.mouse_move(x,y)
   App.fake_mouse_state.x = x
   App.fake_mouse_state.y = y
 end
-function App.mouse_down(button)
-  return App.fake_mouse_state[button]
+function App.mouse_down(mouse_button)
+  return App.fake_mouse_state[mouse_button]
 end
 function App.mouse_x()
   return App.fake_mouse_state.x
@@ -250,25 +250,25 @@ function App.run_after_keychord(chord)
   App.draw()
 end
 
-function App.run_after_mouse_click(x,y, button)
-  App.fake_mouse_press(x,y, button)
-  App.mousepressed(x,y, button)
-  App.fake_mouse_release(x,y, button)
-  App.mousereleased(x,y, button)
+function App.run_after_mouse_click(x,y, mouse_button)
+  App.fake_mouse_press(x,y, mouse_button)
+  App.mousepressed(x,y, mouse_button)
+  App.fake_mouse_release(x,y, mouse_button)
+  App.mousereleased(x,y, mouse_button)
   App.screen.contents = {}
   App.draw()
 end
 
-function App.run_after_mouse_press(x,y, button)
-  App.fake_mouse_press(x,y, button)
-  App.mousepressed(x,y, button)
+function App.run_after_mouse_press(x,y, mouse_button)
+  App.fake_mouse_press(x,y, mouse_button)
+  App.mousepressed(x,y, mouse_button)
   App.screen.contents = {}
   App.draw()
 end
 
-function App.run_after_mouse_release(x,y, button)
-  App.fake_mouse_release(x,y, button)
-  App.mousereleased(x,y, button)
+function App.run_after_mouse_release(x,y, mouse_button)
+  App.fake_mouse_release(x,y, mouse_button)
+  App.mousereleased(x,y, mouse_button)
   App.screen.contents = {}
   App.draw()
 end
@@ -302,13 +302,15 @@ function App.open_for_writing(filename)
 end
 
 function App.open_for_reading(filename)
-  return {
-    lines = function(self)
-              return App.filesystem[filename]:gmatch('[^\n]+')
-            end,
-    close = function(self)
-            end,
-  }
+  if App.filesystem[filename] then
+    return {
+      lines = function(self)
+                return App.filesystem[filename]:gmatch('[^\n]+')
+              end,
+      close = function(self)
+              end,
+    }
+  end
 end
 
 function App.run_tests()