Thanks, Sebastian, for a very helpful and tactful reply.
All the errors I failed to understand are from WebKitGtk. Thanks, Iain On Sun, 2015-04-19 at 09:31 -0500, Sebastian Silva wrote: > > On 19/04/15 05:10, Iain Brown Douglas wrote: > > > Following a month of Learn Python the Hard Way, I cannot get an Edit > > Toolbar to behave fully correctly, in Activity Help, as modified for > > SoaS Loader. > Keep it up! This is exactly the way to learn and have fun. > It might be a good idea to also keep in mind that you are learning two > things at the same time: Python and GTK. > > I have tried (in various permutations) to make use of code borrowed from > > Terminal, Pippy, Develop, Browse, ReadETexts, and Write. I get stuck > > just writing a "vanilla" function definition for > > > > `__copy_cb` > > > > as in: `edit_toolbar.copy.connect('clicked', self.__copy_cb)` . > > > > What am I missing? > > > > This "fresh start" approach seems to demonstrate a "most naive" form of > > my error. > > > > I take Help-19 as my base (working with sugar-runner, on Fedora 20). > > > > I edit helpactivity.py adding 5 segments [1] of code I borrowed from > > Terminal and Pippy. > The third segment has a commented line in [2] (line 192), but not in > [1]. > This is the line where the object text_buffer is created in the > original code. > Since in line 194, the code tries to access a method of this object, > it will fail because at this point in the code, text_buffer is None. > This will stop execution of the code and thus the hotkey does nothing. > > > > The resulting modified helpactivity.py is [2]. > > > > For this example, no further debugging or "improvements". > > > > The Activity runs, and looks ok, the copy button works to the extent > > that the selected text can be pasted with the centre mouse button, but > > not with a Sugar Paste button (or Ctrl+Shift+V). When I press the "new" > > Copy button, no clipping shows in the Frame. > > > > The Debug error is: > > > > File "~/Activities/SugarTutorial.activity/helpactivity.py", line 194, in > > __copy_cb > > text_buffer.copy_clipboard(clipboard) > > AttributeError: 'NoneType' object has no attribute 'copy_clipboard' > You need to find out what text_buffer is supposed to be. > My guess is that you need to ask your Webkit.WebView object > (instantiated as self._web_view in your code), what text is selected > (and put that into text_buffer). > It is always good to have docs at hand, and also Q&A websites are good > for these kinds of details. > Here's a relevant question answered, and it seems Webkit is a little > quirky: > http://stackoverflow.com/questions/14823892/whats-the-method-to-get-the-webkit-webviews-currently-selected-text > > > > I guess I am missing something very obvious, grateful if anyone could > > throw me a clue. > > > > With thanks, > Good luck! > > Iain > > > > [1] http://fpaste.org/212778/ > > [2] http://ur1.ca/k7fir > > > > > > _______________________________________________ > > Sugar-devel mailing list > > Sugar-devel@lists.sugarlabs.org > > http://lists.sugarlabs.org/listinfo/sugar-devel > > -- > I+D SomosAzucar.Org > "icarito" #somosazucar en Freenode IRC > "Nadie libera a nadie, nadie se libera solo. Los seres humanos se liberan en > comuniĆ³n" - P. Freire _______________________________________________ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel