X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/daaf4b6ba8fbddd81553e0076385220ef1a7f327..c2ba4a7d374a9b20f7567478e8bafbad8f3884e1:/lib/python/Components/PluginComponent.py

diff --git a/lib/python/Components/PluginComponent.py b/lib/python/Components/PluginComponent.py
index cfdbc4d0..9425e56d 100644
--- a/lib/python/Components/PluginComponent.py
+++ b/lib/python/Components/PluginComponent.py
@@ -1,53 +1,88 @@
-import os
+from os import path as os_path, listdir as os_listdir
+from traceback import print_exc
+from sys import stdout
 
-from Tools.Directories import *
-
-def my_import(name):
-	mod = __import__(name)
-	components = name.split('.')
-	for comp in components[1:]:
-		mod = getattr(mod, comp)
-	return mod
+from Tools.Directories import fileExists
+from Tools.Import import my_import
+from Plugins.Plugin import PluginDescriptor
 
 class PluginComponent:
 	def __init__(self):
 		self.plugins = {}
+		self.pluginList = [ ]
 		self.setPluginPrefix("Plugins.")
-		
+		self.resetWarnings()
+
 	def setPluginPrefix(self, prefix):
 		self.prefix = prefix
 
-	def readPluginList(self, runAutostartPlugins=False, runAutoendPlugins=False):
-		"""enumerates plugins"""
+	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)
 
-		directories = os.listdir(resolveFilename(SCOPE_PLUGINS))
+	def readPluginList(self, directory):
+		"""enumerates plugins"""
 		
-		for x in directories:
-			path = resolveFilename(SCOPE_PLUGINS, x) + "/"
-			if os.path.exists(path):
-				if fileExists(path + "plugin.py"):
-					plugin = my_import('.'.join(("Plugins", x, "plugin")))
-					
-					if not plugin.__dict__.has_key("Plugins"):
-						print "Plugin %s doesn't have 'Plugin'-call." % (x)
-						continue
-					
-					print "plugin", plugin
-					plugins = plugin.Plugins()
-					
-					# allow single entry not to be a list
-					if type(plugins) is not list:
-						plugins = [ plugins ]
-					
-					for p in plugins:
-						print "imported plugin %s" % (p.name)
-						
-						for x in p.where:
-							self.plugins.setdefault(x, []).append(p)
+		categories = os_listdir(directory)
+		
+		new_plugins = [ ]
+		
+		for c in categories:
+			directory_category = directory + c
+			if not os_path.isdir(directory_category):
+				continue
+			open(directory_category + "/__init__.py", "a").close()
+			for pluginname in os_listdir(directory_category):
+				path = directory_category + "/" + pluginname
+				if os_path.isdir(path):
+					if fileExists(path + "/plugin.pyc") or fileExists(path + "/plugin.py"):
+						try:
+							plugin = my_import('.'.join(["Plugins", c, pluginname, "plugin"]))
+
+							if not plugin.__dict__.has_key("Plugins"):
+								print "Plugin %s doesn't have 'Plugin'-call." % (pluginname)
+								continue
+
+							plugins = plugin.Plugins(path=path)
+						except Exception, exc:
+							print "Plugin ", c + "/" + pluginname, "failed to load:", exc
+							print_exc(file=stdout)
+							print "skipping plugin."
+							self.warnings.append( (c + "/" + pluginname, str(exc)) )
+							continue
+
+						# allow single entry not to be a list
+						if type(plugins) is not list:
+							plugins = [ plugins ]
+
+						for p in plugins:
+							p.updateIcon(path)
+							new_plugins.append(p)
+
+		# build a diff between the old list of plugins and the new one
+		# internally, the "fnc" argument will be compared with __eq__
+		plugins_added = [p for p in new_plugins if p not in self.pluginList]
+		plugins_removed = [p for p in self.pluginList if p not in new_plugins]
+
+		for p in plugins_removed:
+			self.removePlugin(p)
+
+		for p in plugins_added:
+			self.addPlugin(p)
 
 	def getPlugins(self, where):
 		"""Get list of plugins in a specific category"""
-		
+
 		if type(where) is not list:
 			where = [ where ]
 		res = [ ]
@@ -56,4 +91,21 @@ class PluginComponent:
 				res.append(p)
 		return res
 
+	def getPluginsForMenu(self, menuid):
+		res = [ ]
+		for p in self.getPlugins(PluginDescriptor.WHERE_SETUP):
+			res += p(menuid)
+		return res
+
+	def clearPluginList(self):
+		self.pluginList = []
+		self.plugins = {}
+
+	def shutdown(self):
+		for p in self.pluginList[:]:
+			self.removePlugin(p)
+
+	def resetWarnings(self):
+		self.warnings = [ ]
+
 plugins = PluginComponent()