ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / lib64 / python2.7 / idlelib

from Tkinter import *

class WidgetRedirector:

"""Support for redirecting arbitrary widget subcommands.

Some Tk operations don't normally pass through Tkinter.  For example, if a
    character is inserted into a Text widget by pressing a key, a default Tk
    binding to the widget's 'insert' operation is activated, and the Tk library
    processes the insert without calling back into Tkinter.

Although a binding to <Key> could be made via Tkinter, what we really want
    to do is to hook the Tk 'insert' operation itself.

When a widget is instantiated, a Tcl command is created whose name is the
    same as the pathname widget._w.  This command is used to invoke the various
    widget operations, e.g. insert (for a Text widget). We are going to hook
    this command and provide a facility ('register') to intercept the widget
    operation.

In IDLE, the function being registered provides access to the top of a
    Percolator chain.  At the bottom of the chain is a call to the original
    Tk widget operation.

"""
    def __init__(self, widget):
        self._operations = {}
        self.widget = widget            # widget instance
        self.tk = tk = widget.tk        # widget's root
        w = widget._w                   # widget's (full) Tk pathname
        self.orig = w + "_orig"
        # Rename the Tcl command within Tcl:
        tk.call("rename", w, self.orig)
        # Create a new Tcl command whose name is the widget's pathname, and
        # whose action is to dispatch on the operation passed to the widget:
        tk.createcommand(w, self.dispatch)

def __repr__(self):
        return "WidgetRedirector(%s<%s>)" % (self.widget.__class__.__name__,
                                             self.widget._w)

def close(self):
        for operation in list(self._operations):
            self.unregister(operation)
        widget = self.widget; del self.widget
        orig = self.orig; del self.orig
        tk = widget.tk
        w = widget._w
        tk.deletecommand(w)
        # restore the original widget Tcl command:
        tk.call("rename", orig, w)

def register(self, operation, function):
        self._operations[operation] = function
        setattr(self.widget, operation, function)
        return OriginalCommand(self, operation)

def unregister(self, operation):
        if operation in self._operations:
            function = self._operations[operation]
            del self._operations[operation]
            if hasattr(self.widget, operation):
                delattr(self.widget, operation)
            return function
        else:
            return None

def dispatch(self, operation, *args):
        '''Callback from Tcl which runs when the widget is referenced.

If an operation has been registered in self._operations, apply the
        associated function to the args passed into Tcl. Otherwise, pass the
        operation through to Tk via the original Tcl function.

Note that if a registered function is called, the operation is not
        passed through to Tk.  Apply the function returned by self.register()
        to *args to accomplish that.  For an example, see ColorDelegator.py.

'''
        m = self._operations.get(operation)
        try:
            if m:
                return m(*args)
            else:
                return self.tk.call((self.orig, operation) + args)
        except TclError:
            return ""

class OriginalCommand:

def __init__(self, redir, operation):
        self.redir = redir
        self.operation = operation
        self.tk = redir.tk
        self.orig = redir.orig
        self.tk_call = self.tk.call
        self.orig_and_operation = (self.orig, self.operation)

def __repr__(self):
        return "OriginalCommand(%r, %r)" % (self.redir, self.operation)

def __call__(self, *args):
        return self.tk_call(self.orig_and_operation + args)

def main():
    root = Tk()
    root.wm_protocol("WM_DELETE_WINDOW", root.quit)
    text = Text()
    text.pack()
    text.focus_set()
    redir = WidgetRedirector(text)
    global previous_tcl_fcn
    def my_insert(*args):
        print "insert", args
        previous_tcl_fcn(*args)
    previous_tcl_fcn = redir.register("insert", my_insert)
    root.mainloop()
    redir.unregister("insert")  # runs after first 'close window'
    redir.close()
    root.mainloop()
    root.destroy()

if __name__ == "__main__":
    main()

[+] ..
[-] PyParse.pyo [edit]
[-] ReplaceDialog.pyo [edit]
[-] HyperParser.pyo [edit]
[-] CodeContext.pyo [edit]
[-] MultiCall.py [edit]
[-] WidgetRedirector.py [edit]
[-] FormatParagraph.pyo [edit]
[-] UndoDelegator.pyo [edit]
[-] RstripExtension.pyo [edit]
[-] AutoComplete.pyo [edit]
[-] tabbedpages.py [edit]
[-] StackViewer.py [edit]
[-] ToolTip.py [edit]
[-] CodeContext.pyc [edit]
[-] configDialog.pyo [edit]
[-] OutputWindow.pyc [edit]
[-] __init__.pyo [edit]
[-] configHandler.pyo [edit]
[-] Bindings.pyc [edit]
[-] configSectionNameDialog.pyc [edit]
[-] dynOptionMenuWidget.pyo [edit]
[-] ColorDelegator.pyc [edit]
[-] StackViewer.pyo [edit]
[-] PyParse.pyc [edit]
[-] PathBrowser.pyo [edit]
[-] configSectionNameDialog.py [edit]
[-] IdleHistory.pyo [edit]
[-] idlever.pyo [edit]
[-] ParenMatch.pyo [edit]
[-] ScriptBinding.pyc [edit]
[-] EditorWindow.pyc [edit]
[-] config-keys.def [edit]
[-] ClassBrowser.pyc [edit]
[-] configDialog.pyc [edit]
[-] dynOptionMenuWidget.py [edit]
[-] idlever.py [edit]
[-] SearchDialogBase.py [edit]
[-] CallTips.pyo [edit]
[-] HyperParser.pyc [edit]
[-] AutoCompleteWindow.pyc [edit]
[-] ObjectBrowser.py [edit]
[-] WindowList.pyc [edit]
[-] textView.pyo [edit]
[-] ReplaceDialog.py [edit]
[-] FileList.py [edit]
[-] RemoteObjectBrowser.py [edit]
[-] MultiStatusBar.pyc [edit]
[-] SearchDialogBase.pyo [edit]
[-] configHandler.pyc [edit]
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[-] IOBinding.pyc [edit]
[-] FileList.pyo [edit]
[-] EditorWindow.pyo [edit]
[-] ParenMatch.pyc [edit]
[-] AutoExpand.pyc [edit]
[+] Icons
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[-] IdleHistory.pyc [edit]
[-] FormatParagraph.pyc [edit]
[-] rpc.py [edit]
[-] PyShell.pyc [edit]
[-] MultiCall.pyc [edit]
[-] ScrolledList.pyc [edit]
[-] SearchEngine.py [edit]
[-] ClassBrowser.pyo [edit]
[-] TreeWidget.pyc [edit]
[-] PathBrowser.pyc [edit]
[-] ScrolledList.pyo [edit]
[-] README.txt [edit]
[-] idle.py [edit]
[-] configHandler.py [edit]
[-] configDialog.py [edit]
[-] __init__.pyc [edit]
[-] Percolator.pyc [edit]
[-] ObjectBrowser.pyc [edit]
[-] RemoteObjectBrowser.pyc [edit]
[-] MultiCall.pyo [edit]
[-] ClassBrowser.py [edit]
[-] run.py [edit]
[-] OutputWindow.py [edit]
[-] aboutDialog.pyo [edit]
[-] SearchDialog.py [edit]
[-] AutoExpand.py [edit]
[-] Debugger.py [edit]
[-] FormatParagraph.py [edit]
[-] SearchEngine.pyo [edit]
[-] Percolator.pyo [edit]
[-] ColorDelegator.py [edit]
[-] IdleHistory.py [edit]
[-] configSectionNameDialog.pyo [edit]
[-] idlever.pyc [edit]
[-] macosxSupport.pyc [edit]
[-] RemoteDebugger.pyc [edit]
[-] EditorWindow.py [edit]
[-] Bindings.py [edit]
[-] textView.py [edit]
[-] idle.pyc [edit]
[-] TreeWidget.pyo [edit]
[-] PathBrowser.py [edit]
[-] CREDITS.txt [edit]
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[-] Delegator.pyo [edit]
[-] SearchEngine.pyc [edit]
[-] ZoomHeight.py [edit]
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[-] TODO.txt [edit]
[-] Delegator.py [edit]
[-] idle.pyw [edit]
[-] AutoExpand.pyo [edit]
[-] ScriptBinding.py [edit]
[-] ObjectBrowser.pyo [edit]
[-] aboutDialog.py [edit]
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[-] SearchDialog.pyo [edit]
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[-] help.txt [edit]
[-] UndoDelegator.py [edit]
[-] PyParse.py [edit]
[-] Debugger.pyc [edit]
[-] CallTips.py [edit]
[-] MultiStatusBar.py [edit]
[-] config-extensions.def [edit]
[-] WidgetRedirector.pyc [edit]
[-] Debugger.pyo [edit]
[-] ParenMatch.py [edit]
[-] config-highlight.def [edit]
[-] ToolTip.pyc [edit]
[-] WidgetRedirector.pyo [edit]
[-] WindowList.py [edit]
[-] __init__.py [edit]
[-] AutoCompleteWindow.py [edit]
[-] ZoomHeight.pyc [edit]
[-] CallTipWindow.pyc [edit]
[-] macosxSupport.py [edit]
[-] ScrolledList.py [edit]
[-] IOBinding.py [edit]
[-] tabbedpages.pyo [edit]
[-] HISTORY.txt [edit]
[-] WindowList.pyo [edit]
[-] CallTipWindow.pyo [edit]
[-] dynOptionMenuWidget.pyc [edit]
[-] ColorDelegator.pyo [edit]
[-] ReplaceDialog.pyc [edit]
[-] keybindingDialog.py [edit]
[-] tabbedpages.pyc [edit]
[-] CallTips.pyc [edit]
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[-] textView.pyc [edit]
[-] configHelpSourceEdit.pyo [edit]
[-] idle.pyo [edit]
[-] Percolator.py [edit]
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[-] PyShell.pyo [edit]
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[-] run.pyc [edit]
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[-] AutoComplete.py [edit]
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[-] HyperParser.py [edit]
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[-] run.pyo [edit]