542 lines
18 KiB
Python
542 lines
18 KiB
Python
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""" CLass to edit XDG Menus """
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import os
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try:
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import xml.etree.cElementTree as etree
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except ImportError:
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import xml.etree.ElementTree as etree
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from .Menu import Menu, MenuEntry, Layout, Separator, XMLMenuBuilder
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from .BaseDirectory import xdg_config_dirs, xdg_data_dirs
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from .Exceptions import ParsingError
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from .Config import setRootMode
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# XML-Cleanups: Move / Exclude
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# FIXME: proper reverte/delete
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# FIXME: pass AppDirs/DirectoryDirs around in the edit/move functions
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# FIXME: catch Exceptions
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# FIXME: copy functions
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# FIXME: More Layout stuff
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# FIXME: unod/redo function / remove menu...
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# FIXME: Advanced MenuEditing Stuff: LegacyDir/MergeFile
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# Complex Rules/Deleted/OnlyAllocated/AppDirs/DirectoryDirs
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class MenuEditor(object):
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def __init__(self, menu=None, filename=None, root=False):
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self.menu = None
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self.filename = None
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self.tree = None
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self.parser = XMLMenuBuilder()
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self.parse(menu, filename, root)
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# fix for creating two menus with the same name on the fly
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self.filenames = []
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def parse(self, menu=None, filename=None, root=False):
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if root:
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setRootMode(True)
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if isinstance(menu, Menu):
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self.menu = menu
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elif menu:
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self.menu = self.parser.parse(menu)
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else:
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self.menu = self.parser.parse()
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if root:
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self.filename = self.menu.Filename
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elif filename:
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self.filename = filename
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else:
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self.filename = os.path.join(xdg_config_dirs[0], "menus", os.path.split(self.menu.Filename)[1])
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try:
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self.tree = etree.parse(self.filename)
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except IOError:
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root = etree.fromtring("""
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<!DOCTYPE Menu PUBLIC "-//freedesktop//DTD Menu 1.0//EN" "http://standards.freedesktop.org/menu-spec/menu-1.0.dtd">
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<Menu>
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<Name>Applications</Name>
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<MergeFile type="parent">%s</MergeFile>
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</Menu>
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""" % self.menu.Filename)
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self.tree = etree.ElementTree(root)
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except ParsingError:
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raise ParsingError('Not a valid .menu file', self.filename)
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#FIXME: is this needed with etree ?
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self.__remove_whitespace_nodes(self.tree)
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def save(self):
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self.__saveEntries(self.menu)
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self.__saveMenu()
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def createMenuEntry(self, parent, name, command=None, genericname=None, comment=None, icon=None, terminal=None, after=None, before=None):
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menuentry = MenuEntry(self.__getFileName(name, ".desktop"))
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menuentry = self.editMenuEntry(menuentry, name, genericname, comment, command, icon, terminal)
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self.__addEntry(parent, menuentry, after, before)
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self.menu.sort()
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return menuentry
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def createMenu(self, parent, name, genericname=None, comment=None, icon=None, after=None, before=None):
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menu = Menu()
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menu.Parent = parent
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menu.Depth = parent.Depth + 1
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menu.Layout = parent.DefaultLayout
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menu.DefaultLayout = parent.DefaultLayout
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menu = self.editMenu(menu, name, genericname, comment, icon)
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self.__addEntry(parent, menu, after, before)
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self.menu.sort()
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return menu
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def createSeparator(self, parent, after=None, before=None):
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separator = Separator(parent)
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self.__addEntry(parent, separator, after, before)
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self.menu.sort()
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return separator
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def moveMenuEntry(self, menuentry, oldparent, newparent, after=None, before=None):
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self.__deleteEntry(oldparent, menuentry, after, before)
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self.__addEntry(newparent, menuentry, after, before)
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self.menu.sort()
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return menuentry
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def moveMenu(self, menu, oldparent, newparent, after=None, before=None):
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self.__deleteEntry(oldparent, menu, after, before)
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self.__addEntry(newparent, menu, after, before)
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root_menu = self.__getXmlMenu(self.menu.Name)
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if oldparent.getPath(True) != newparent.getPath(True):
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self.__addXmlMove(root_menu, os.path.join(oldparent.getPath(True), menu.Name), os.path.join(newparent.getPath(True), menu.Name))
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self.menu.sort()
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return menu
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def moveSeparator(self, separator, parent, after=None, before=None):
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self.__deleteEntry(parent, separator, after, before)
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self.__addEntry(parent, separator, after, before)
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self.menu.sort()
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return separator
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def copyMenuEntry(self, menuentry, oldparent, newparent, after=None, before=None):
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self.__addEntry(newparent, menuentry, after, before)
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self.menu.sort()
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return menuentry
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def editMenuEntry(self, menuentry, name=None, genericname=None, comment=None, command=None, icon=None, terminal=None, nodisplay=None, hidden=None):
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deskentry = menuentry.DesktopEntry
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if name:
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if not deskentry.hasKey("Name"):
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deskentry.set("Name", name)
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deskentry.set("Name", name, locale=True)
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if comment:
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if not deskentry.hasKey("Comment"):
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deskentry.set("Comment", comment)
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deskentry.set("Comment", comment, locale=True)
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if genericname:
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if not deskentry.hasKey("GenericName"):
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deskentry.set("GenericName", genericname)
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deskentry.set("GenericName", genericname, locale=True)
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if command:
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deskentry.set("Exec", command)
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if icon:
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deskentry.set("Icon", icon)
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if terminal:
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deskentry.set("Terminal", "true")
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elif not terminal:
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deskentry.set("Terminal", "false")
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if nodisplay is True:
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deskentry.set("NoDisplay", "true")
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elif nodisplay is False:
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deskentry.set("NoDisplay", "false")
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if hidden is True:
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deskentry.set("Hidden", "true")
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elif hidden is False:
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deskentry.set("Hidden", "false")
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menuentry.updateAttributes()
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if len(menuentry.Parents) > 0:
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self.menu.sort()
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return menuentry
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def editMenu(self, menu, name=None, genericname=None, comment=None, icon=None, nodisplay=None, hidden=None):
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# Hack for legacy dirs
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if isinstance(menu.Directory, MenuEntry) and menu.Directory.Filename == ".directory":
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xml_menu = self.__getXmlMenu(menu.getPath(True, True))
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self.__addXmlTextElement(xml_menu, 'Directory', menu.Name + ".directory")
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menu.Directory.setAttributes(menu.Name + ".directory")
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# Hack for New Entries
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elif not isinstance(menu.Directory, MenuEntry):
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if not name:
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name = menu.Name
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filename = self.__getFileName(name, ".directory").replace("/", "")
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if not menu.Name:
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menu.Name = filename.replace(".directory", "")
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xml_menu = self.__getXmlMenu(menu.getPath(True, True))
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self.__addXmlTextElement(xml_menu, 'Directory', filename)
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menu.Directory = MenuEntry(filename)
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deskentry = menu.Directory.DesktopEntry
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if name:
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if not deskentry.hasKey("Name"):
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deskentry.set("Name", name)
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deskentry.set("Name", name, locale=True)
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if genericname:
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if not deskentry.hasKey("GenericName"):
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deskentry.set("GenericName", genericname)
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deskentry.set("GenericName", genericname, locale=True)
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if comment:
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if not deskentry.hasKey("Comment"):
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deskentry.set("Comment", comment)
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deskentry.set("Comment", comment, locale=True)
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if icon:
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deskentry.set("Icon", icon)
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if nodisplay is True:
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deskentry.set("NoDisplay", "true")
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elif nodisplay is False:
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deskentry.set("NoDisplay", "false")
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if hidden is True:
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deskentry.set("Hidden", "true")
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elif hidden is False:
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deskentry.set("Hidden", "false")
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menu.Directory.updateAttributes()
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if isinstance(menu.Parent, Menu):
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self.menu.sort()
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return menu
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def hideMenuEntry(self, menuentry):
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self.editMenuEntry(menuentry, nodisplay=True)
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def unhideMenuEntry(self, menuentry):
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self.editMenuEntry(menuentry, nodisplay=False, hidden=False)
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def hideMenu(self, menu):
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self.editMenu(menu, nodisplay=True)
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def unhideMenu(self, menu):
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self.editMenu(menu, nodisplay=False, hidden=False)
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xml_menu = self.__getXmlMenu(menu.getPath(True, True), False)
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deleted = xml_menu.findall('Deleted')
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not_deleted = xml_menu.findall('NotDeleted')
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for node in deleted + not_deleted:
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xml_menu.remove(node)
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def deleteMenuEntry(self, menuentry):
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if self.getAction(menuentry) == "delete":
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self.__deleteFile(menuentry.DesktopEntry.filename)
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for parent in menuentry.Parents:
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self.__deleteEntry(parent, menuentry)
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self.menu.sort()
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return menuentry
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def revertMenuEntry(self, menuentry):
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if self.getAction(menuentry) == "revert":
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self.__deleteFile(menuentry.DesktopEntry.filename)
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menuentry.Original.Parents = []
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for parent in menuentry.Parents:
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index = parent.Entries.index(menuentry)
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parent.Entries[index] = menuentry.Original
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index = parent.MenuEntries.index(menuentry)
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parent.MenuEntries[index] = menuentry.Original
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menuentry.Original.Parents.append(parent)
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self.menu.sort()
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return menuentry
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def deleteMenu(self, menu):
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if self.getAction(menu) == "delete":
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self.__deleteFile(menu.Directory.DesktopEntry.filename)
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self.__deleteEntry(menu.Parent, menu)
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xml_menu = self.__getXmlMenu(menu.getPath(True, True))
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parent = self.__get_parent_node(xml_menu)
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parent.remove(xml_menu)
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self.menu.sort()
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return menu
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def revertMenu(self, menu):
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if self.getAction(menu) == "revert":
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self.__deleteFile(menu.Directory.DesktopEntry.filename)
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menu.Directory = menu.Directory.Original
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self.menu.sort()
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return menu
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def deleteSeparator(self, separator):
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self.__deleteEntry(separator.Parent, separator, after=True)
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self.menu.sort()
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return separator
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""" Private Stuff """
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def getAction(self, entry):
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if isinstance(entry, Menu):
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if not isinstance(entry.Directory, MenuEntry):
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return "none"
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elif entry.Directory.getType() == "Both":
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return "revert"
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elif entry.Directory.getType() == "User" and (
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len(entry.Submenus) + len(entry.MenuEntries)
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) == 0:
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return "delete"
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elif isinstance(entry, MenuEntry):
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if entry.getType() == "Both":
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return "revert"
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elif entry.getType() == "User":
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return "delete"
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else:
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return "none"
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return "none"
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def __saveEntries(self, menu):
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if not menu:
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menu = self.menu
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if isinstance(menu.Directory, MenuEntry):
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menu.Directory.save()
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for entry in menu.getEntries(hidden=True):
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if isinstance(entry, MenuEntry):
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entry.save()
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elif isinstance(entry, Menu):
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self.__saveEntries(entry)
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def __saveMenu(self):
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if not os.path.isdir(os.path.dirname(self.filename)):
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os.makedirs(os.path.dirname(self.filename))
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self.tree.write(self.filename, encoding='utf-8')
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def __getFileName(self, name, extension):
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postfix = 0
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while 1:
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if postfix == 0:
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filename = name + extension
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else:
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filename = name + "-" + str(postfix) + extension
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if extension == ".desktop":
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dir = "applications"
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elif extension == ".directory":
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dir = "desktop-directories"
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if not filename in self.filenames and not os.path.isfile(
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os.path.join(xdg_data_dirs[0], dir, filename)
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):
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self.filenames.append(filename)
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break
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else:
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postfix += 1
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return filename
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def __getXmlMenu(self, path, create=True, element=None):
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# FIXME: we should also return the menu's parent,
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# to avoid looking for it later on
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# @see Element.getiterator()
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if not element:
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element = self.tree
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if "/" in path:
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(name, path) = path.split("/", 1)
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else:
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name = path
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path = ""
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found = None
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for node in element.findall("Menu"):
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name_node = node.find('Name')
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if name_node.text == name:
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if path:
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found = self.__getXmlMenu(path, create, node)
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else:
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found = node
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if found:
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break
|
||
|
|
if not found and create:
|
||
|
|
node = self.__addXmlMenuElement(element, name)
|
||
|
|
if path:
|
||
|
|
found = self.__getXmlMenu(path, create, node)
|
||
|
|
else:
|
||
|
|
found = node
|
||
|
|
|
||
|
|
return found
|
||
|
|
|
||
|
|
def __addXmlMenuElement(self, element, name):
|
||
|
|
menu_node = etree.SubElement('Menu', element)
|
||
|
|
name_node = etree.SubElement('Name', menu_node)
|
||
|
|
name_node.text = name
|
||
|
|
return menu_node
|
||
|
|
|
||
|
|
def __addXmlTextElement(self, element, name, text):
|
||
|
|
node = etree.SubElement(name, element)
|
||
|
|
node.text = text
|
||
|
|
return node
|
||
|
|
|
||
|
|
def __addXmlFilename(self, element, filename, type_="Include"):
|
||
|
|
# remove old filenames
|
||
|
|
includes = element.findall('Include')
|
||
|
|
excludes = element.findall('Exclude')
|
||
|
|
rules = includes + excludes
|
||
|
|
for rule in rules:
|
||
|
|
#FIXME: this finds only Rules whose FIRST child is a Filename element
|
||
|
|
if rule[0].tag == "Filename" and rule[0].text == filename:
|
||
|
|
element.remove(rule)
|
||
|
|
# shouldn't it remove all occurences, like the following:
|
||
|
|
#filename_nodes = rule.findall('.//Filename'):
|
||
|
|
#for fn in filename_nodes:
|
||
|
|
#if fn.text == filename:
|
||
|
|
##element.remove(rule)
|
||
|
|
#parent = self.__get_parent_node(fn)
|
||
|
|
#parent.remove(fn)
|
||
|
|
|
||
|
|
# add new filename
|
||
|
|
node = etree.SubElement(type_, element)
|
||
|
|
self.__addXmlTextElement(node, 'Filename', filename)
|
||
|
|
return node
|
||
|
|
|
||
|
|
def __addXmlMove(self, element, old, new):
|
||
|
|
node = etree.SubElement("Move", element)
|
||
|
|
self.__addXmlTextElement(node, 'Old', old)
|
||
|
|
self.__addXmlTextElement(node, 'New', new)
|
||
|
|
return node
|
||
|
|
|
||
|
|
def __addXmlLayout(self, element, layout):
|
||
|
|
# remove old layout
|
||
|
|
for node in element.findall("Layout"):
|
||
|
|
element.remove(node)
|
||
|
|
|
||
|
|
# add new layout
|
||
|
|
node = etree.SubElement("Layout", element)
|
||
|
|
for order in layout.order:
|
||
|
|
if order[0] == "Separator":
|
||
|
|
child = etree.SubElement("Separator", node)
|
||
|
|
elif order[0] == "Filename":
|
||
|
|
child = self.__addXmlTextElement(node, "Filename", order[1])
|
||
|
|
elif order[0] == "Menuname":
|
||
|
|
child = self.__addXmlTextElement(node, "Menuname", order[1])
|
||
|
|
elif order[0] == "Merge":
|
||
|
|
child = etree.SubElement("Merge", node)
|
||
|
|
child.attrib["type"] = order[1]
|
||
|
|
return node
|
||
|
|
|
||
|
|
def __addLayout(self, parent):
|
||
|
|
layout = Layout()
|
||
|
|
layout.order = []
|
||
|
|
layout.show_empty = parent.Layout.show_empty
|
||
|
|
layout.inline = parent.Layout.inline
|
||
|
|
layout.inline_header = parent.Layout.inline_header
|
||
|
|
layout.inline_alias = parent.Layout.inline_alias
|
||
|
|
layout.inline_limit = parent.Layout.inline_limit
|
||
|
|
|
||
|
|
layout.order.append(["Merge", "menus"])
|
||
|
|
for entry in parent.Entries:
|
||
|
|
if isinstance(entry, Menu):
|
||
|
|
layout.parseMenuname(entry.Name)
|
||
|
|
elif isinstance(entry, MenuEntry):
|
||
|
|
layout.parseFilename(entry.DesktopFileID)
|
||
|
|
elif isinstance(entry, Separator):
|
||
|
|
layout.parseSeparator()
|
||
|
|
layout.order.append(["Merge", "files"])
|
||
|
|
|
||
|
|
parent.Layout = layout
|
||
|
|
|
||
|
|
return layout
|
||
|
|
|
||
|
|
def __addEntry(self, parent, entry, after=None, before=None):
|
||
|
|
if after or before:
|
||
|
|
if after:
|
||
|
|
index = parent.Entries.index(after) + 1
|
||
|
|
elif before:
|
||
|
|
index = parent.Entries.index(before)
|
||
|
|
parent.Entries.insert(index, entry)
|
||
|
|
else:
|
||
|
|
parent.Entries.append(entry)
|
||
|
|
|
||
|
|
xml_parent = self.__getXmlMenu(parent.getPath(True, True))
|
||
|
|
|
||
|
|
if isinstance(entry, MenuEntry):
|
||
|
|
parent.MenuEntries.append(entry)
|
||
|
|
entry.Parents.append(parent)
|
||
|
|
self.__addXmlFilename(xml_parent, entry.DesktopFileID, "Include")
|
||
|
|
elif isinstance(entry, Menu):
|
||
|
|
parent.addSubmenu(entry)
|
||
|
|
|
||
|
|
if after or before:
|
||
|
|
self.__addLayout(parent)
|
||
|
|
self.__addXmlLayout(xml_parent, parent.Layout)
|
||
|
|
|
||
|
|
def __deleteEntry(self, parent, entry, after=None, before=None):
|
||
|
|
parent.Entries.remove(entry)
|
||
|
|
|
||
|
|
xml_parent = self.__getXmlMenu(parent.getPath(True, True))
|
||
|
|
|
||
|
|
if isinstance(entry, MenuEntry):
|
||
|
|
entry.Parents.remove(parent)
|
||
|
|
parent.MenuEntries.remove(entry)
|
||
|
|
self.__addXmlFilename(xml_parent, entry.DesktopFileID, "Exclude")
|
||
|
|
elif isinstance(entry, Menu):
|
||
|
|
parent.Submenus.remove(entry)
|
||
|
|
|
||
|
|
if after or before:
|
||
|
|
self.__addLayout(parent)
|
||
|
|
self.__addXmlLayout(xml_parent, parent.Layout)
|
||
|
|
|
||
|
|
def __deleteFile(self, filename):
|
||
|
|
try:
|
||
|
|
os.remove(filename)
|
||
|
|
except OSError:
|
||
|
|
pass
|
||
|
|
try:
|
||
|
|
self.filenames.remove(filename)
|
||
|
|
except ValueError:
|
||
|
|
pass
|
||
|
|
|
||
|
|
def __remove_whitespace_nodes(self, node):
|
||
|
|
for child in node:
|
||
|
|
text = child.text.strip()
|
||
|
|
if not text:
|
||
|
|
child.text = ''
|
||
|
|
tail = child.tail.strip()
|
||
|
|
if not tail:
|
||
|
|
child.tail = ''
|
||
|
|
if len(child):
|
||
|
|
self.__remove_whilespace_nodes(child)
|
||
|
|
|
||
|
|
def __get_parent_node(self, node):
|
||
|
|
# elements in ElementTree doesn't hold a reference to their parent
|
||
|
|
for parent, child in self.__iter_parent():
|
||
|
|
if child is node:
|
||
|
|
return child
|
||
|
|
|
||
|
|
def __iter_parent(self):
|
||
|
|
for parent in self.tree.getiterator():
|
||
|
|
for child in parent:
|
||
|
|
yield parent, child
|