189 lines
7.1 KiB
Python
189 lines
7.1 KiB
Python
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# -*- coding: latin-1 -*-
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# PyWin32 Internet Explorer Button
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#
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# written by Leonard Ritter (paniq@gmx.net)
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# and Robert F<>rtsch (info@robert-foertsch.com)
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"""
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This sample implements a simple IE Button COM server
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with access to the IWebBrowser2 interface.
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To demonstrate:
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* Execute this script to register the server.
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* Open Pythonwin's Tools -> Trace Collector Debugging Tool, so you can
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see the output of 'print' statements in this demo.
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* Open a new IE instance. The toolbar should have a new "scissors" icon,
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with tooltip text "IE Button" - this is our new button - click it.
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* Switch back to the Pythonwin window - you should see:
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IOleCommandTarget::Exec called.
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This is the button being clicked. Extending this to do something more
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useful is left as an exercise.
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Contribtions to this sample to make it a little "friendlier" welcome!
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"""
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# imports section
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import sys, os
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from win32com import universal
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from win32com.client import gencache, DispatchWithEvents, Dispatch
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from win32com.client import constants, getevents
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import win32com.server.register
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import win32com
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import pythoncom
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import win32api
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# This demo uses 'print' - use win32traceutil to see it if we have no
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# console.
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try:
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win32api.GetConsoleTitle()
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except win32api.error:
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import win32traceutil
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from win32com.axcontrol import axcontrol
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import array, struct
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# ensure we know the ms internet controls typelib so we have access to IWebBrowser2 later on
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win32com.client.gencache.EnsureModule('{EAB22AC0-30C1-11CF-A7EB-0000C05BAE0B}',0,1,1)
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#
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IObjectWithSite_methods = ['SetSite','GetSite']
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IOleCommandTarget_methods = ['Exec','QueryStatus']
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_iebutton_methods_ = IOleCommandTarget_methods + IObjectWithSite_methods
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_iebutton_com_interfaces_ = [
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axcontrol.IID_IOleCommandTarget,
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axcontrol.IID_IObjectWithSite, # IObjectWithSite
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]
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class Stub:
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"""
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this class serves as a method stub,
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outputting debug info whenever the object
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is being called.
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"""
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def __init__(self,name):
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self.name = name
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def __call__(self,*args):
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print('STUB: ',self.name,args)
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class IEButton:
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"""
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The actual COM server class
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"""
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_com_interfaces_ = _iebutton_com_interfaces_
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_public_methods_ = _iebutton_methods_
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_reg_clsctx_ = pythoncom.CLSCTX_INPROC_SERVER
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_button_text_ = 'IE Button'
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_tool_tip_ = 'An example implementation for an IE Button.'
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_icon_ = ''
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_hot_icon_ = ''
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def __init__( self ):
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# put stubs for non-implemented methods
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for method in self._public_methods_:
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if not hasattr(self,method):
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print('providing default stub for %s' % method)
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setattr(self,method,Stub(method))
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def QueryStatus (self, pguidCmdGroup, prgCmds, cmdtextf):
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# 'cmdtextf' is the 'cmdtextf' element from the OLECMDTEXT structure,
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# or None if a NULL pointer was passed.
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result = []
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for id, flags in prgCmds:
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flags |= axcontrol.OLECMDF_SUPPORTED | axcontrol.OLECMDF_ENABLED
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result.append((id, flags))
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if cmdtextf is None:
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cmdtext = None # must return None if nothing requested.
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# IE never seems to want any text - this code is here for
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# demo purposes only
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elif cmdtextf == axcontrol.OLECMDTEXTF_NAME:
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cmdtext = "IEButton Name"
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else:
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cmdtext = "IEButton State"
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return result, cmdtext
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def Exec(self, pguidCmdGroup, nCmdID, nCmdExecOpt, pvaIn):
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print(pguidCmdGroup, nCmdID, nCmdExecOpt, pvaIn)
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print("IOleCommandTarget::Exec called.")
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#self.webbrowser.ShowBrowserBar(GUID_IETOOLBAR, not is_ietoolbar_visible())
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def SetSite(self,unknown):
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if unknown:
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# first get a command target
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cmdtarget = unknown.QueryInterface(axcontrol.IID_IOleCommandTarget)
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# then travel over to a service provider
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serviceprovider = cmdtarget.QueryInterface(pythoncom.IID_IServiceProvider)
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# finally ask for the internet explorer application, returned as a dispatch object
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self.webbrowser = win32com.client.Dispatch(serviceprovider.QueryService('{0002DF05-0000-0000-C000-000000000046}',pythoncom.IID_IDispatch))
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else:
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# lose all references
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self.webbrowser = None
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def GetClassID(self):
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return self._reg_clsid_
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def register(classobj):
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import winreg
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subKeyCLSID = "SOFTWARE\\Microsoft\\Internet Explorer\\Extensions\\%38s" % classobj._reg_clsid_
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try:
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hKey = winreg.CreateKey( winreg.HKEY_LOCAL_MACHINE, subKeyCLSID )
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subKey = winreg.SetValueEx( hKey, "ButtonText", 0, winreg.REG_SZ, classobj._button_text_ )
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winreg.SetValueEx( hKey, "ClsidExtension", 0, winreg.REG_SZ, classobj._reg_clsid_ ) # reg value for calling COM object
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winreg.SetValueEx( hKey, "CLSID", 0, winreg.REG_SZ, "{1FBA04EE-3024-11D2-8F1F-0000F87ABD16}" ) # CLSID for button that sends command to COM object
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winreg.SetValueEx( hKey, "Default Visible", 0, winreg.REG_SZ, "Yes" )
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winreg.SetValueEx( hKey, "ToolTip", 0, winreg.REG_SZ, classobj._tool_tip_ )
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winreg.SetValueEx( hKey, "Icon", 0, winreg.REG_SZ, classobj._icon_)
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winreg.SetValueEx( hKey, "HotIcon", 0, winreg.REG_SZ, classobj._hot_icon_)
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except WindowsError:
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print("Couldn't set standard toolbar reg keys.")
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else:
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print("Set standard toolbar reg keys.")
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def unregister(classobj):
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import winreg
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subKeyCLSID = "SOFTWARE\\Microsoft\\Internet Explorer\\Extensions\\%38s" % classobj._reg_clsid_
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try:
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hKey = winreg.CreateKey( winreg.HKEY_LOCAL_MACHINE, subKeyCLSID )
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subKey = winreg.DeleteValue( hKey, "ButtonText" )
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winreg.DeleteValue( hKey, "ClsidExtension" ) # for calling COM object
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winreg.DeleteValue( hKey, "CLSID" )
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winreg.DeleteValue( hKey, "Default Visible" )
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winreg.DeleteValue( hKey, "ToolTip" )
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winreg.DeleteValue( hKey, "Icon" )
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winreg.DeleteValue( hKey, "HotIcon" )
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winreg.DeleteKey( winreg.HKEY_LOCAL_MACHINE, subKeyCLSID )
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except WindowsError:
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print("Couldn't delete Standard toolbar regkey.")
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else:
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print("Deleted Standard toolbar regkey.")
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#
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# test implementation
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#
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class PyWin32InternetExplorerButton(IEButton):
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_reg_clsid_ = "{104B66A9-9E68-49D1-A3F5-94754BE9E0E6}"
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_reg_progid_ = "PyWin32.IEButton"
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_reg_desc_ = 'Test Button'
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_button_text_ = 'IE Button'
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_tool_tip_ = 'An example implementation for an IE Button.'
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_icon_ = ''
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_hot_icon_ = _icon_
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def DllRegisterServer():
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register(PyWin32InternetExplorerButton)
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def DllUnregisterServer():
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unregister(PyWin32InternetExplorerButton)
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if __name__ == '__main__':
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win32com.server.register.UseCommandLine(PyWin32InternetExplorerButton,
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finalize_register = DllRegisterServer,
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finalize_unregister = DllUnregisterServer)
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