Florian Fredegar Haftmann wrote: [schnipp]
Was hier passieren soll: Internet Explorer wird "ferngesteuert", sobald das Dokument da ist, wird hiner alle Buttons ein Eventhandler für Klicks gehängt.
Problem: Wie "verpack" ich die Eventhandler!?
In $PREFIX/Lib/site-packages/win32com/client/__init__.py gibt es u.a. die Funktion def DispatchWithEvents(clsid, user_event_class) mit einem Beispiel, um Events abzufangen.
Es wird eine Klasse benötigt wie die folgende: (siehe $PREFIX\Lib\site-packages\win32com\gen_py\EAB22AC0-30C1-11CF-A7EB-0000C05BAE0Bx0x1x1.py für Details)
class IWebBrowserEvents2: "Web Browser Control events interface" # Handlers for the control # If you create handlers, they should have the following prototypes: # def OnWindowSetTop(self, Top=defaultNamedNotOptArg): # """Fired when the host window should change its Top coordinate""" # def OnStatusTextChange(self, Text=defaultNamedNotOptArg): # """Statusbar text changed.""" # def OnWindowClosing(self, IsChildWindow=defaultNamedNotOptArg, Cancel=defaultNamedNotOptArg): # """Fired when the WebBrowser is about to be closed by script""" # def OnFileDownload(self, Cancel=defaultNamedNotOptArg): # """Fired to indicate the File Download dialog is opening""" # def OnStatusBar(self, StatusBar=defaultNamedNotOptArg): # """Fired when the statusbar should be shown/hidden""" # def OnWindowSetResizable(self, Resizable=defaultNamedNotOptArg): # """Fired when the host window should allow/disallow resizing""" # def OnNewWindow2(self, ppDisp=defaultNamedNotOptArg, Cancel=defaultNamedNotOptArg): # """A new, hidden, non-navigated WebBrowser window is needed.""" # def OnDownloadComplete(self): # """Download of page complete.""" # def OnBeforeNavigate2(self, pDisp=defaultNamedNotOptArg, URL=defaultNamedNotOptArg, Flags=defaultNamedNotOptArg, TargetFrameName=defaultNamedNotOptArg, PostData=defaultNamedNotOptArg, Headers=defaultNamedNotOptArg, Cancel=defaultNamedNotOptArg): # """Fired before navigate occurs in the given WebBrowser (window or frameset element). The processing of this navigation may be modified.""" # def OnSetSecureLockIcon(self, SecureLockIcon=defaultNamedNotOptArg): # """Fired to indicate the security level of the current web page contents""" # def OnProgressChange(self, Progress=defaultNamedNotOptArg, ProgressMax=defaultNamedNotOptArg): # """Fired when download progress is updated.""" # def OnCommandStateChange(self, Command=defaultNamedNotOptArg, Enable=defaultNamedNotOptArg): # """The enabled state of a command changed.""" # def OnClientToHostWindow(self, CX=defaultNamedNotOptArg, CY=defaultNamedNotOptArg): # """Fired to request client sizes be converted to host window sizes""" # def OnDownloadBegin(self): # """Download of a page started.""" # def OnWindowSetWidth(self, Width=defaultNamedNotOptArg): # """Fired when the host window should change its width""" # def OnFullScreen(self, FullScreen=defaultNamedNotOptArg): # """Fired when fullscreen mode should be on/off""" # def OnDocumentComplete(self, pDisp=defaultNamedNotOptArg, URL=defaultNamedNotOptArg): # """Fired when the document being navigated to reaches ReadyState_Complete.""" # def OnMenuBar(self, MenuBar=defaultNamedNotOptArg): # """Fired when the menubar should be shown/hidden""" # def OnQuit(self): # """Fired when application is quiting.""" # def OnWindowSetLeft(self, Left=defaultNamedNotOptArg): # """Fired when the host window should change its Left coordinate""" # def OnPropertyChange(self, szProperty=defaultNamedNotOptArg): # """Fired when the PutProperty method has been called.""" # def OnTitleChange(self, Text=defaultNamedNotOptArg): # """Document title changed.""" # def OnWindowSetHeight(self, Height=defaultNamedNotOptArg): # """Fired when the host window should change its height""" # def OnNavigateComplete2(self, pDisp=defaultNamedNotOptArg, URL=defaultNamedNotOptArg): # """Fired when the document being navigated to becomes visible and enters the navigation stack.""" # def OnToolBar(self, ToolBar=defaultNamedNotOptArg): # """Fired when the toolbar should be shown/hidden""" # def OnTheaterMode(self, TheaterMode=defaultNamedNotOptArg): # """Fired when theater mode should be on/off""" # def OnVisible(self, Visible=defaultNamedNotOptArg): # """Fired when the window should be shown/hidden"""
Beispiel (ungetestet - Ausschnitt aus einem großen package):
import sys from win32com.client import constants, DispatchWithEvents from pythoncom import com_error, Missing from time import sleep
optArg = defaultNamedNotOptArg = Missing ready = 4 # constants.READYSTATE_COMPLETE
class InternetExplorerEvents: "Web Browser Control events interface suitable for debugging." _write = sys.stderr.write def set_debug(self, write=sys.stderr.write): self._write = write
def OnVisible(self, Visible=optArg): self._write('OnVisible(%s)\n' % `Visible`) def OnTitleChange(self, Text=optArg): self._write('OnTitleChange(%s)\n' % `Text`) def OnDownloadBegin(self): self._write('OnDownloadBegin()\n') def OnQuit(self): self._write('OnQuit()\n') def OnCommandStateChange(self, Command=optArg, Enable=optArg): self._write('OnCommandStateChange(%s, %s)\n' % (`Command`, `Enable`)) def OnToolBar(self, ToolBar=optArg): self._write('OnToolBar(%s)\n' % `ToolBar`) def OnNavigateComplete2(self, pDisp=optArg, URL=optArg): self._write('OnNavigateComplete2(%s, %s)\n' % (`pDisp`, `URL`)) def OnBeforeNavigate2(self, pDisp=optArg, URL=optArg, Flags=optArg, TargetFrameName=optArg, PostData=optArg, Headers=optArg, Cancel=optArg): self._write('OnBeforeNavigate2(' '%s, %s, %s, %s, ' '%s, %s, %s)\n' % (`pDisp`, `URL`, `Flags`, `TargetFrameName`, `PostData`, `Headers`, `Cancel`)) def OnNewWindow2(self, ppDisp=optArg, Cancel=optArg): self._write('OnNewWindow2(%s, %s)\n' % (`ppDisp`, `Cancel`)) def OnTheaterMode(self, TheaterMode=optArg): self._write('OnTheaterMode(%s)\n' % `TheaterMode`) def OnProgressChange(self, Progress=optArg, ProgressMax=optArg): self._write('OnProgressChange(%s, %s)\n' % (`Progress`, `ProgressMax`)) def OnStatusBar(self, StatusBar=optArg): self._write('OnStatusBar(%s)\n' % `StatusBar`) def OnPropertyChange(self, szProperty=optArg): self._write('OnPropertyChange(%s)\n' % `szProperty`) def OnMenuBar(self, MenuBar=optArg): self._write('OnMenuBar(%s)\n' % `MenuBar`) def OnStatusTextChange(self, Text=optArg): self._write('OnStatusTextChange(%s)\n' % `Text`) def OnDocumentComplete(self, pDisp=optArg, URL=optArg): self._write('OnDocumentComplete(%s, %s)\n' % (`pDisp`, `URL`)) def OnDownloadComplete(self): self._write('OnDownloadComplete()\n') def OnFullScreen(self, FullScreen=optArg): self._write('OnFullScreen(%s)\n' % `FullScreen`)
def browse(url=None, write=sys.stderr.write): """Test drive IE.
Usage: >>> import WebBrowserEvents >>> url = None # browse docs... >>> WebBrowserEvents.browse(url) """ ie = DispatchWithEvents('InternetExplorer.Application', InternetExplorerEvents) ie.set_debug(write=write)
if url is None: url = r'file:/%s\Doc\index.html' % sys.prefix
ie.Navigate(url)
try: while ie.ReadyState != ready: sleep(0.1)
document = ie.Document all = document.all window = document.frames screen = window.screen
if not window.opener and window.parent == window.self: window.moveTo(0, 0) window.resizeTo(screen.availWidth, screen.availHeight) except com_error, err_msg: write('--> %s: %s\n' % (com_error.__name__, err_msg))
ie.Left = 0 ie.Top = 0 ie.Width = 1024 ie.Height = 741
ie.Visible = 1
return ie
def test(url, wait=1, write=sys.stderr.write): """Test drive IE.
Usage: >>> import WebBrowserEvents, sys >>> url = r'file:/%s\Doc\index.html' % sys.prefix >>> WebBrowserEvents.test(url) """ ie = DispatchWithEvents('InternetExplorer.Application', InternetExplorerEvents) ie.set_debug(write=write)
if 0: ie.Left = 0 ie.Top = 0 ie.Width = 1024 ie.Height = 741
ie.Visible = 1
# write('--> About to Navigate...\n') ie.Navigate(url)
try: while ie.ReadyState != ready: sleep(0.01)
document = ie.Document all = document.all window = document.frames screen = window.screen
if not window.opener and window.parent == window.self: window.moveTo(0, 0) window.resizeTo(screen.availWidth, screen.availHeight) except com_error, err_msg: write('--> %s: %s\n' % (com_error.__name__, err_msg))
if not wait: while ie.Busy: sleep(0.01)
write('--> Use Quit() to exit from IE\n') return ie
while ie.Visible: sleep(0.01) # write('--> IE not visible any more\n')
if 0: try: write('--> Trying to quit\n') ie.Quit() write('--> Quit succeeded\n') except com_error, err_msg: write('--> %s: %s\n' % (com_error.__name__, err_msg)) # write('--> Exit\n')
if __name__ == '__main__': if len(sys.argv) == 1: url = raw_input('url: ') if not url: # url = 'http://www.python.org/index.html' url = r'file:/%s\Python\Doc\index.html' % sys.prefix else: url = sys.argv[1]
test(url)
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