client/windows/context_menu.py

# A sample context menu handler.
# Adds a 'Hello from Python' menu entry to .py files.  When clicked, a
# simple message box is displayed.
#
# To demostrate:
# * Execute this script to register the context menu.
# * Open Windows Explorer, and browse to a directory with a .py file.
# * Right-Click on a .py file - locate and click on 'Hello from Python' on
#   the context menu.

# see also: http://www.codeproject.com/shell/ShellExtGuide2.asp

import pythoncom
from win32com.shell import shell, shellcon
import win32gui
import win32con
import win32api, winerror

IContextMenu_Methods = ["QueryContextMenu", "InvokeCommand", "GetCommandString"]
IShellExtInit_Methods = ["Initialize"]

class ShellExtension:
    _reg_progid_ = "Python.ShellExtension.ContextMenu"
    _reg_name_ = "MessClient"
    _reg_desc_ = "Mess Shell Extension"
    _reg_clsid_ = "{CED0336C-C9EE-4a7f-8D7F-C660393C381F}"
    _com_interfaces_ = [shell.IID_IShellExtInit, shell.IID_IContextMenu]
    _public_methods_ = IContextMenu_Methods + IShellExtInit_Methods

    def Initialize(self, folder, dataobj, hkey):
        print "Init", folder, dataobj, hkey
        self.dataobj = dataobj

    def QueryContextMenu(self, hMenu, indexMenu, idCmdFirst, idCmdLast, uFlags):
        
        # debug
        print "QCM", hMenu, indexMenu, idCmdFirst, idCmdLast, uFlags
        
        # query the items clicked on
        format_etc = win32con.CF_HDROP, None, 1, -1, pythoncom.TYMED_HGLOBAL
        sm = self.dataobj.GetData(format_etc)
        num_files = shell.DragQueryFile(sm.data_handle, -1)
        
        #if num_files>1:
        #    msg = "&Hello from Python (with %d files selected)" % num_files
        #else:
        #    fname = shell.DragQueryFile(sm.data_handle, 0)
        #    msg = "&Hello from Python (with '%s' selected)" % fname
        self.files_selected = []
        for i in range(0, num_files):
          fname = shell.DragQueryFile(sm.data_handle, i)
          if fname == 0: continue
          self.files_selected.append(fname)

        # build context menu(s)
        msg = "A&rchiveMe"
        idCmd = idCmdFirst
        items = []
        if (uFlags & 0x000F) == shellcon.CMF_NORMAL: # Check == here, since CMF_NORMAL=0
            print "CMF_NORMAL..."
            items.append(msg + " - normal")
        elif uFlags & shellcon.CMF_VERBSONLY:
            print "CMF_VERBSONLY..."
            items.append(msg + " - shortcut")
        elif uFlags & shellcon.CMF_EXPLORE:
            print "CMF_EXPLORE..."
            #items.append(msg + " - normal file, right-click in Explorer")
            items.append(msg)
            items.append("Named Shortcut &1")
            items.append("Named Shortcut &2")
        elif uFlags & CMF_DEFAULTONLY:
            print "CMF_DEFAULTONLY...\r\n"
            items.append("hello world - 1!")
        else:
            print "** unknown flags", uFlags
            items.append("hello world - 2!")
        
        # create menu entries
        win32gui.InsertMenu(hMenu, indexMenu,
                            win32con.MF_SEPARATOR|win32con.MF_BYPOSITION,
                            idCmd, None)
        indexMenu += 1
        idCmd += 1
        
        for item in items:
            win32gui.InsertMenu(hMenu, indexMenu,
                                win32con.MF_STRING|win32con.MF_BYPOSITION,
                                idCmd, item)
            indexMenu += 1
            idCmd += 1

        win32gui.InsertMenu(hMenu, indexMenu,
                            win32con.MF_SEPARATOR|win32con.MF_BYPOSITION,
                            idCmd, None)
        indexMenu += 1
        idCmd += 1
        
        return idCmd-idCmdFirst # Must return number of menu items we added.

    def GetCommandString(self, cmdId, typ):
        #if cmdId == 0:
        #  return "Hello from Python!!"
        #else:
        #  return "abc"
        return self._reg_name_ + "_" + cmdId;

    def InvokeCommand(self, ci):
        mask, hwnd, verb, params, dir, nShow, hotkey, hicon = ci

        # If lpVerb really points to a string, ignore this function call and bail out.
        if win32api.HIWORD( verb ) != 0:
          return winerror.E_INVALIDARG
        
        function_id = win32api.LOWORD(verb)
        # TODO: establish mapping with building the context menus in "QueryContextMenu"
        if function_id == 1:
          method = "ArchiveMe"
        elif function_id == 2:
          method = "Shortcut 1"
        elif function_id == 3:
          method = "Shortcut 2"
        else:
          method = "Unknown"
        
        # do action(s)
        win32gui.MessageBox(hwnd, "\n".join(self.files_selected), method, win32con.MB_OK)


def DllRegisterServer():
    import _winreg
    
    # extended (via http://mail.python.org/pipermail/python-list/2003-December/198390.html)

    # for folders
    folder_key = _winreg.CreateKey(_winreg.HKEY_CLASSES_ROOT, "Folder\\shellex")
    folder_subkey = _winreg.CreateKey(folder_key, "ContextMenuHandlers")
    folder_subkey2 = _winreg.CreateKey(folder_subkey, ShellExtension._reg_name_)
    _winreg.SetValueEx(folder_subkey2, None, 0, _winreg.REG_SZ, ShellExtension._reg_clsid_)

    # for files
    file_key = _winreg.CreateKey(_winreg.HKEY_CLASSES_ROOT, "*\\shellex")
    file_subkey = _winreg.CreateKey(file_key, "ContextMenuHandlers")
    file_subkey2 = _winreg.CreateKey(file_subkey, ShellExtension._reg_name_)
    _winreg.SetValueEx(file_subkey2, None, 0, _winreg.REG_SZ, ShellExtension._reg_clsid_)

    print ShellExtension._reg_desc_, "registration complete."


def DllUnregisterServer():
    import _winreg

    # extended (via http://mail.python.org/pipermail/python-list/2003-December/198390.html)

    try:
        # for folders
        folder_key = _winreg.DeleteKey(_winreg.HKEY_CLASSES_ROOT,
                                "Folder\\shellex\\ContextMenuHandlers\\" + ShellExtension._reg_name_)
        # for files
        file_key = _winreg.DeleteKey(_winreg.HKEY_CLASSES_ROOT,
                                "*\\shellex\\ContextMenuHandlers\\" + ShellExtension._reg_name_)
    except WindowsError, details:
        import errno
        if details.errno != errno.ENOENT:
            raise
    print ShellExtension._reg_desc_, "unregistration complete."

if __name__=='__main__':
    from win32com.server import register
    register.UseCommandLine(ShellExtension,
                   finalize_register = DllRegisterServer,
                   finalize_unregister = DllUnregisterServer)
1	joko	1.1	# A sample context menu handler.
2			# Adds a 'Hello from Python' menu entry to .py files. When clicked, a
3			# simple message box is displayed.
4			#
5			# To demostrate:
6			# * Execute this script to register the context menu.
7			# * Open Windows Explorer, and browse to a directory with a .py file.
8			# * Right-Click on a .py file - locate and click on 'Hello from Python' on
9			# the context menu.
10
11	joko	1.4	# see also: http://www.codeproject.com/shell/ShellExtGuide2.asp
12
13	joko	1.1	import pythoncom
14			from win32com.shell import shell, shellcon
15			import win32gui
16			import win32con
17	joko	1.4	import win32api, winerror
18	joko	1.1
19			IContextMenu_Methods = ["QueryContextMenu", "InvokeCommand", "GetCommandString"]
20			IShellExtInit_Methods = ["Initialize"]
21
22			class ShellExtension:
23			_reg_progid_ = "Python.ShellExtension.ContextMenu"
24	joko	1.2	_reg_name_ = "MessClient"
25			_reg_desc_ = "Mess Shell Extension"
26	joko	1.1	_reg_clsid_ = "{CED0336C-C9EE-4a7f-8D7F-C660393C381F}"
27			_com_interfaces_ = [shell.IID_IShellExtInit, shell.IID_IContextMenu]
28			_public_methods_ = IContextMenu_Methods + IShellExtInit_Methods
29
30			def Initialize(self, folder, dataobj, hkey):
31			print "Init", folder, dataobj, hkey
32			self.dataobj = dataobj
33
34			def QueryContextMenu(self, hMenu, indexMenu, idCmdFirst, idCmdLast, uFlags):
35	joko	1.3
36			# debug
37	joko	1.1	print "QCM", hMenu, indexMenu, idCmdFirst, idCmdLast, uFlags
38	joko	1.3
39			# query the items clicked on
40	joko	1.1	format_etc = win32con.CF_HDROP, None, 1, -1, pythoncom.TYMED_HGLOBAL
41			sm = self.dataobj.GetData(format_etc)
42			num_files = shell.DragQueryFile(sm.data_handle, -1)
43	joko	1.3
44			#if num_files>1:
45			# msg = "&Hello from Python (with %d files selected)" % num_files
46			#else:
47			# fname = shell.DragQueryFile(sm.data_handle, 0)
48			# msg = "&Hello from Python (with '%s' selected)" % fname
49			self.files_selected = []
50			for i in range(0, num_files):
51			fname = shell.DragQueryFile(sm.data_handle, i)
52			if fname == 0: continue
53			self.files_selected.append(fname)
54
55			# build context menu(s)
56			msg = "A&rchiveMe"
57	joko	1.1	idCmd = idCmdFirst
58			items = []
59			if (uFlags & 0x000F) == shellcon.CMF_NORMAL: # Check == here, since CMF_NORMAL=0
60			print "CMF_NORMAL..."
61	joko	1.4	items.append(msg + " - normal")
62	joko	1.1	elif uFlags & shellcon.CMF_VERBSONLY:
63			print "CMF_VERBSONLY..."
64			items.append(msg + " - shortcut")
65			elif uFlags & shellcon.CMF_EXPLORE:
66			print "CMF_EXPLORE..."
67	joko	1.3	#items.append(msg + " - normal file, right-click in Explorer")
68			items.append(msg)
69	joko	1.4	items.append("Named Shortcut &1")
70			items.append("Named Shortcut &2")
71	joko	1.1	elif uFlags & CMF_DEFAULTONLY:
72			print "CMF_DEFAULTONLY...\r\n"
73	joko	1.3	items.append("hello world - 1!")
74	joko	1.1	else:
75			print "** unknown flags", uFlags
76	joko	1.3	items.append("hello world - 2!")
77	joko	1.4
78			# create menu entries
79	joko	1.1	win32gui.InsertMenu(hMenu, indexMenu,
80			win32con.MF_SEPARATOR\|win32con.MF_BYPOSITION,
81	joko	1.4	idCmd, None)
82	joko	1.1	indexMenu += 1
83	joko	1.4	idCmd += 1
84
85	joko	1.1	for item in items:
86			win32gui.InsertMenu(hMenu, indexMenu,
87			win32con.MF_STRING\|win32con.MF_BYPOSITION,
88			idCmd, item)
89			indexMenu += 1
90			idCmd += 1
91
92			win32gui.InsertMenu(hMenu, indexMenu,
93			win32con.MF_SEPARATOR\|win32con.MF_BYPOSITION,
94	joko	1.4	idCmd, None)
95	joko	1.1	indexMenu += 1
96	joko	1.4	idCmd += 1
97
98	joko	1.1	return idCmd-idCmdFirst # Must return number of menu items we added.
99
100	joko	1.4	def GetCommandString(self, cmdId, typ):
101			#if cmdId == 0:
102			# return "Hello from Python!!"
103			#else:
104			# return "abc"
105			return self._reg_name_ + "_" + cmdId;
106
107	joko	1.1	def InvokeCommand(self, ci):
108			mask, hwnd, verb, params, dir, nShow, hotkey, hicon = ci
109
110	joko	1.4	# If lpVerb really points to a string, ignore this function call and bail out.
111			if win32api.HIWORD( verb ) != 0:
112			return winerror.E_INVALIDARG
113
114			function_id = win32api.LOWORD(verb)
115			# TODO: establish mapping with building the context menus in "QueryContextMenu"
116			if function_id == 1:
117			method = "ArchiveMe"
118			elif function_id == 2:
119			method = "Shortcut 1"
120			elif function_id == 3:
121			method = "Shortcut 2"
122			else:
123			method = "Unknown"
124
125			# do action(s)
126			win32gui.MessageBox(hwnd, "\n".join(self.files_selected), method, win32con.MB_OK)
127	joko	1.1
128	joko	1.2
129	joko	1.1	def DllRegisterServer():
130			import _winreg
131	joko	1.2
132			# extended (via http://mail.python.org/pipermail/python-list/2003-December/198390.html)
133	joko	1.3
134	joko	1.2	# for folders
135			folder_key = _winreg.CreateKey(_winreg.HKEY_CLASSES_ROOT, "Folder\\shellex")
136			folder_subkey = _winreg.CreateKey(folder_key, "ContextMenuHandlers")
137			folder_subkey2 = _winreg.CreateKey(folder_subkey, ShellExtension._reg_name_)
138			_winreg.SetValueEx(folder_subkey2, None, 0, _winreg.REG_SZ, ShellExtension._reg_clsid_)
139
140			# for files
141			file_key = _winreg.CreateKey(_winreg.HKEY_CLASSES_ROOT, "*\\shellex")
142			file_subkey = _winreg.CreateKey(file_key, "ContextMenuHandlers")
143			file_subkey2 = _winreg.CreateKey(file_subkey, ShellExtension._reg_name_)
144			_winreg.SetValueEx(file_subkey2, None, 0, _winreg.REG_SZ, ShellExtension._reg_clsid_)
145
146	joko	1.1	print ShellExtension._reg_desc_, "registration complete."
147
148	joko	1.2
149	joko	1.1	def DllUnregisterServer():
150			import _winreg
151	joko	1.2
152			# extended (via http://mail.python.org/pipermail/python-list/2003-December/198390.html)
153
154	joko	1.1	try:
155	joko	1.2	# for folders
156			folder_key = _winreg.DeleteKey(_winreg.HKEY_CLASSES_ROOT,
157			"Folder\\shellex\\ContextMenuHandlers\\" + ShellExtension._reg_name_)
158			# for files
159			file_key = _winreg.DeleteKey(_winreg.HKEY_CLASSES_ROOT,
160			"*\\shellex\\ContextMenuHandlers\\" + ShellExtension._reg_name_)
161	joko	1.1	except WindowsError, details:
162			import errno
163			if details.errno != errno.ENOENT:
164			raise
165			print ShellExtension._reg_desc_, "unregistration complete."
166
167			if __name__=='__main__':
168			from win32com.server import register
169			register.UseCommandLine(ShellExtension,
170			finalize_register = DllRegisterServer,
171			finalize_unregister = DllUnregisterServer)
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