Merge pull request #633 from chrox/master

fix two finger pan gestures detection

frontend/apps/reader/pluginloader.lua

@@ -2,7 +2,7 @@ local DEBUG = require("dbg")
 -- lfs
 
 local PluginLoader = {
-    plugin_path = lfs.currentdir().."/plugins"
+    plugin_path = "plugins"
 }
 
 function PluginLoader:loadPlugins()

frontend/ui/gesturedetector.lua

@@ -460,7 +460,7 @@ function GestureDetector:handleTwoFingerPan(tev)
     -- triggering slot
     local tslot = tev.slot
     -- reference slot
-    local rslot = tslot and 0 or 1
+    local rslot = tslot == 1 and 0 or 1
     local tpan_dir, tpan_dis = self:getPath(tslot)
     local tstart_pos = Geom:new{
         x = self.first_tevs[tslot].x,

frontend/ui/uimanager.lua

@@ -116,6 +116,7 @@ end
 
 -- transmit an event to registered widgets
 function UIManager:sendEvent(event)
+    if #self._window_stack == 0 then return end
     -- top level widget has first access to the event
     if self._window_stack[#self._window_stack].widget:handleEvent(event) then
         return