FM / idlelib

/opt/alt/python35/lib64/python3.5/idlelib/

/opt/alt/python35/lib64/python3.5/idlelib

Name	Size	Mode	Actions
Icons/	-	0755	rm
idle_test/	-	0755	rm
__pycache__/	-	0755	rm
aboutDialog.py	6987	0644	edit dl rm
AutoComplete.py	9201	0644	edit dl rm
AutoCompleteWindow.py	17739	0644	edit dl rm
AutoExpand.py	3395	0644	edit dl rm
Bindings.py	3111	0644	edit dl rm
CallTips.py	5932	0644	edit dl rm
CallTipWindow.py	6035	0644	edit dl rm
ChangeLog	56388	0644	edit dl rm
ClassBrowser.py	6999	0644	edit dl rm
CodeContext.py	8357	0644	edit dl rm
ColorDelegator.py	10598	0644	edit dl rm
config-extensions.def	2965	0644	edit dl rm
config-highlight.def	2515	0644	edit dl rm
config-keys.def	7777	0644	edit dl rm
config-main.def	2563	0644	edit dl rm
configDialog.py	65061	0644	edit dl rm
configHandler.py	32451	0644	edit dl rm
configHelpSourceEdit.py	6817	0644	edit dl rm
configSectionNameDialog.py	4007	0644	edit dl rm
CREDITS.txt	1866	0644	edit dl rm
Debugger.py	18758	0644	edit dl rm
Delegator.py	1043	0644	edit dl rm
dynOptionMenuWidget.py	1990	0644	edit dl rm
EditorWindow.py	65595	0644	edit dl rm
extend.txt	3642	0644	edit dl rm
FileList.py	3813	0644	edit dl rm
FormatParagraph.py	7287	0644	edit dl rm
GrepDialog.py	5124	0644	edit dl rm
help.html	43411	0644	edit dl rm
help.py	10952	0644	edit dl rm
help.txt	17900	0644	edit dl rm
HISTORY.txt	10312	0644	edit dl rm
HyperParser.py	12877	0644	edit dl rm
idle.py	453	0644	edit dl rm
idle.pyw	570	0644	edit dl rm
IdleHistory.py	4052	0644	edit dl rm
idlever.py	415	0644	edit dl rm
IOBinding.py	20599	0644	edit dl rm
keybindingDialog.py	12416	0644	edit dl rm
macosxSupport.py	8684	0644	edit dl rm
MultiCall.py	18571	0644	edit dl rm
MultiStatusBar.py	1348	0644	edit dl rm
NEWS.txt	15536	0644	edit dl rm
NEWS2x.txt	27172	0644	edit dl rm
ObjectBrowser.py	3975	0644	edit dl rm
OutputWindow.py	4394	0644	edit dl rm
ParenMatch.py	6714	0644	edit dl rm
PathBrowser.py	3207	0644	edit dl rm
Percolator.py	3179	0644	edit dl rm
PyParse.py	20461	0644	edit dl rm
PyShell.py	58846	0755	edit dl rm
README.txt	7891	0644	edit dl rm
RemoteDebugger.py	12007	0644	edit dl rm
RemoteObjectBrowser.py	964	0644	edit dl rm
ReplaceDialog.py	7481	0644	edit dl rm
rpc.py	20784	0644	edit dl rm
RstripExtension.py	1050	0644	edit dl rm
run.py	13869	0644	edit dl rm
ScriptBinding.py	8061	0644	edit dl rm
ScrolledList.py	4375	0644	edit dl rm
SearchDialog.py	3127	0644	edit dl rm
SearchDialogBase.py	7009	0644	edit dl rm
SearchEngine.py	7485	0644	edit dl rm
StackViewer.py	4426	0644	edit dl rm
tabbedpages.py	18418	0644	edit dl rm
textView.py	3419	0644	edit dl rm
TODO.txt	8478	0644	edit dl rm
ToolTip.py	3173	0644	edit dl rm
TreeWidget.py	15024	0644	edit dl rm
UndoDelegator.py	10980	0644	edit dl rm
WidgetRedirector.py	6939	0644	edit dl rm
WindowList.py	2472	0644	edit dl rm
ZoomHeight.py	1300	0644	edit dl rm
__init__.py	335	0644	edit dl rm
__main__.py	159	0644	edit dl rm

Edit: /opt/alt/python35/lib64/python3.5/idlelib/WidgetRedirector.py (6939B)

from tkinter import TclError

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.  For one thing, we want
    a text.insert call in idle code to have the same effect as a key press.

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.  We will also intercept method calls on the tkinter class
    instance that represents the tk widget.

In IDLE, WidgetRedirector is used in Percolator to intercept Text
    commands.  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):
        '''Initialize attributes and setup redirection.

_operations: dict mapping operation name to new function.
        widget: the widget whose tcl command is to be intercepted.
        tk: widget.tk, a convenience attribute, probably not needed.
        orig: new name of the original tcl command.

Since renaming to orig fails with TclError when orig already
        exists, only one WidgetDirector can exist for a given 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 "%s(%s<%s>)" % (self.__class__.__name__,
                               self.widget.__class__.__name__,
                               self.widget._w)

def close(self):
        "Unregister operations and revert redirection created by .__init__."
        for operation in list(self._operations):
            self.unregister(operation)
        widget = self.widget
        tk = widget.tk
        w = widget._w
        # Restore the original widget Tcl command.
        tk.deletecommand(w)
        tk.call("rename", self.orig, w)
        del self.widget, self.tk  # Should not be needed
        # if instance is deleted after close, as in Percolator.

def register(self, operation, function):
        '''Return OriginalCommand(operation) after registering function.

Registration adds an operation: function pair to ._operations.
        It also adds a widget function attribute that masks the tkinter
        class instance method.  Method masking operates independently
        from command dispatch.

If a second function is registered for the same operation, the
        first function is replaced in both places.
        '''
        self._operations[operation] = function
        setattr(self.widget, operation, function)
        return OriginalCommand(self, operation)

def unregister(self, operation):
        '''Return the function for the operation, or None.

Deleting the instance attribute unmasks the class attribute.
        '''
        if operation in self._operations:
            function = self._operations[operation]
            del self._operations[operation]
            try:
                delattr(self.widget, operation)
            except AttributeError:
                pass
            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:
    '''Callable for original tk command that has been redirected.

Returned by .register; can be used in the function registered.
    redir = WidgetRedirector(text)
    def my_insert(*args):
        print("insert", args)
        original_insert(*args)
    original_insert = redir.register("insert", my_insert)
    '''

def __init__(self, redir, operation):
        '''Create .tk_call and .orig_and_operation for .__call__ method.

.redir and .operation store the input args for __repr__.
        .tk and .orig copy attributes of .redir (probably not needed).
        '''
        self.redir = redir
        self.operation = operation
        self.tk = redir.tk  # redundant with self.redir
        self.orig = redir.orig  # redundant with self.redir
        # These two could be deleted after checking recipient code.
        self.tk_call = redir.tk.call
        self.orig_and_operation = (redir.orig, operation)

def __repr__(self):
        return "%s(%r, %r)" % (self.__class__.__name__,
                               self.redir, self.operation)

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

def _widget_redirector(parent):  # htest #
    from tkinter import Tk, Text
    import re

root = Tk()
    root.title("Test WidgetRedirector")
    width, height, x, y = list(map(int, re.split('[x+]', parent.geometry())))
    root.geometry("+%d+%d"%(x, y + 150))
    text = Text(root)
    text.pack()
    text.focus_set()
    redir = WidgetRedirector(text)
    def my_insert(*args):
        print("insert", args)
        original_insert(*args)
    original_insert = redir.register("insert", my_insert)
    root.mainloop()

if __name__ == "__main__":
    import unittest
    unittest.main('idlelib.idle_test.test_widgetredir',
                  verbosity=2, exit=False)
    from idlelib.idle_test.htest import run
    run(_widget_redirector)

cmd: