well ... yes, I have previously just totally **set** the body text (ie. I
am creating a totally new node), and as you say this 'sticks'. For this new
command, I want to add to any body text which is already there.
But I am puzzled about what seems to be a mixture in this example:
- you get the insertion point and then use w.insert() to write your text to
... the wrapper for the body??
- but then you do p.v.b = w.getAllText() to ... set the body text to ...
that which you have just set for the body wrapper?
I am missing something in the paradigm here...
J^n
On Sunday, July 28, 2024 at 2:52:47 PM UTC+1 [email protected] wrote:
> I think I forgot that the recommended way to do unto/redo has been changed
> since I wrote that script. Also, you can directly set p.b or p.v.b and
> those changes will stick. Here's one I found in Leo's code base that does
> that and uses the newer undo system:
>
> def insertBodyTime(self: Self, event: LeoKeyEvent = None) -> None:
> """Insert a time/date stamp at the cursor."""
> c, p, u = self, self.p, self.undoer
> w = c.frame.body.wrapper
> undoType = 'Insert Body Time'
> if g.app.batchMode:
> c.notValidInBatchMode(undoType)
> return
> bunch = u.beforeChangeBody(p)
> w.deleteTextSelection()
> s = self.getTime(body=True)
> i = w.getInsertPoint()
> w.insert(i, s)
> p.v.b = w.getAllText()
> u.afterChangeBody(p, undoType, bunch)
>
> On Sunday, July 28, 2024 at 9:17:45 AM UTC-4 jkn wrote:
>
>> Thanks. Hmm, looks like I was wrong about onBodyChanged being outdated -
>> there seem to be hardly any uses in Leo's source, which perhaps misled me.
>>
>> I removed my undo code from my example... ;-)
>>
>> Regards
>> J^n
>>
>>
>> On Sunday, July 28, 2024 at 1:58:07 PM UTC+1 [email protected] wrote:
>>
>>> Here's one I use and it works fine. You should set up for undoing after
>>> an insert, and this script does that too:
>>>
>>> """Insert a node with id and creation timestamp strings"""
>>>
>>> c.doCommandByName('insert-node')
>>> undoType = 'xx-insert-node'
>>> p.moveToNext()
>>> w = c.frame.body.wrapper
>>>
>>> oldSel = w.getSelectionRange()
>>> w.deleteTextSelection()
>>> w.setInsertPoint(0)
>>>
>>> id_label = f':id: {p.gnx}\n'
>>> time_string = ':created: ' + c.getTime(body=True) + '\n'
>>> i = w.getInsertPoint()
>>> w.insert(i, f'{id_label}{time_string}')
>>>
>>> c.frame.body.onBodyChanged(undoType, oldSel=oldSel)
>>> c.bodyWantsFocusNow()
>>>
>>> On Sunday, July 28, 2024 at 8:40:32 AM UTC-4 jkn wrote:
>>>
>>>> I'm being a bit dim here, but:
>>>>
>>>> I am writing a simple command to append text to the body of a node. The
>>>> only commands I have written before set the entire body text to some value.
>>>>
>>>> What do I have to call after using w.insert() etc. to make these
>>>> changes persistent.?
>>>>
>>>> c.redraw() does not seem to do the trick.
>>>>
>>>> The (outdated?) scripting miscellany:
>>>> https://leo-editor.github.io/leo-editor/scripting-miscellany.html
>>>>
>>>> suggests that c.frame.body.onBodyChanged should be called; but it looks
>>>> like this is not longer the case.
>>>>
>>>> A trivial example (that I do not seem to be able to find) would be
>>>> helpful - thanks.
>>>>
>>>> w = c.frame.body.wrapper
>>>> for line in range(10):
>>>> w.appendText("%d\n" % line)
>>>>
>>>> # now what?
>>>>
>>>> J^n
>>>>
>>>>
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