recursively search for plugins

[enigma2.git] / lib / python / Components / PluginComponent.py

diff --git a/lib/python/Components/PluginComponent.py b/lib/python/Components/PluginComponent.py
index 67373ea7af033a3ec95df33db35a6e54650d47f5..ae06d7768a41062ab1dd24009335cefae326c6ac 100644 (file)
--- a/lib/python/Components/PluginComponent.py
+++ b/lib/python/Components/PluginComponent.py
@@ -1,59 +1,79 @@
 import os
 
 from Tools.Directories import *
-from Screens.Menu import menuupdater
+from Plugins.Plugin import PluginDescriptor
+
+def my_import(name):
+       print name
+       mod = __import__(name)
+       components = name.split('.')
+       for comp in components[1:]:
+               mod = getattr(mod, comp)
+       return mod
 
 class PluginComponent:
        def __init__(self):
-               self.plugins = []
+               self.plugins = {}
+               self.pluginList = [ ]
                self.setPluginPrefix("Plugins.")
-               self.menuEntries = []
                
        def setPluginPrefix(self, prefix):
                self.prefix = prefix
+       
+       def addPlugin(self, plugin):
+               self.pluginList.append(plugin)
+               for x in plugin.where:
+                       self.plugins.setdefault(x, []).append(plugin)
+                       if x == PluginDescriptor.WHERE_AUTOSTART:
+                               plugin(reason=0)
+       
+       def removePlugin(self, plugin):
+               self.pluginList.remove(plugin)
+               for x in plugin.where:
+                       self.plugins[x].remove(plugin)
+                       if x == PluginDescriptor.WHERE_AUTOSTART:
+                               plugin(reason=1)
+       
+       def readPluginList(self, directory, modules = [], depth = 1):
+               """enumerates plugins"""
+               
+               directories = os.listdir(directory)
+               
+               for x in directories:
+                       path = directory + x + "/"
+                       if os.path.isdir(path):
+                               if fileExists(path + "plugin.py"):
+                                       plugin = my_import('.'.join(["Plugins"] + modules + [x, "plugin"]))
+                                       
+                                       if not plugin.__dict__.has_key("Plugins"):
+                                               print "Plugin %s doesn't have 'Plugin'-call." % (x)
+                                               continue
+                                       
+                                       plugins = plugin.Plugins()
+                                       
+                                       # allow single entry not to be a list
+                                       if type(plugins) is not list:
+                                               plugins = [ plugins ]
+                                       
+                                       for p in plugins:
+                                               p.updateIcon(path)
+                                               self.addPlugin(p);
+                               else:
+                                       self.readPluginList(path, modules + [x], depth - 1)
 
-       def getPluginList(self):
-               list = []
-               dir = os.listdir(resolveFilename(SCOPE_PLUGINS))
-               self.menuDelete()
-               self.menuEntries = []
-
-               for x in dir:
-                       path = resolveFilename(SCOPE_PLUGINS, x) + "/"
-                       try:
-                               if os.path.exists(path):
-                                       if fileExists(path + "plugin.py"):
-                                               pluginmodule = self.prefix + x + ".plugin"
-                                               print "trying to import " + pluginmodule
-                                               exec "import " + pluginmodule
-                                               plugin = eval(pluginmodule)
-                                               picturepath = plugin.getPicturePath()
-                                               pluginname = plugin.getPluginName()
-                                               try:
-                                                       for menuEntry in plugin.getMenuRegistrationList():
-                                                               self.menuEntries.append([menuEntry, pluginmodule])
-                                               except:
-                                                       pass
+       def getPlugins(self, where):
+               """Get list of plugins in a specific category"""
                
-                                               list.append((picturepath, pluginname , x))
-                       except:
-                               print "Directory", path, "contains a faulty plugin"
-               self.menuUpdate()
-               return list
-       
-       def menuDelete(self):
-               for menuEntry in self.menuEntries:
-                       menuupdater.delMenuItem(menuEntry[0][0], menuEntry[0][2], menuEntry[1], menuEntry[0][3])
+               if type(where) is not list:
+                       where = [ where ]
+               res = [ ]
+               for x in where:
+                       for p in self.plugins.get(x, [ ]):
+                               res.append(p)
+               return res
 
-       def menuUpdate(self):
-               for menuEntry in self.menuEntries:
-                       menuupdater.addMenuItem(menuEntry[0][0], menuEntry[0][2], menuEntry[1], menuEntry[0][3])
-       
-       def runPlugin(self, plugin, session):
-               try:
-                       exec "import " + self.prefix + plugin[2] + ".plugin"
-                       eval(self.prefix + plugin[2] + ".plugin").main(session)
-               except:
-                       print "exec of plugin failed!"
+       def shutdown(self):
+               for p in self.pluginList[:]:
+                       self.removePlugin(p)
 
 plugins = PluginComponent()