focus TextInput changes on '.' pressed

[Andrei Sima]

Hi,

I have read the docs for FocusBehavior, that i understand TextInput inherits. I got lost, and now i need your help

As per fact i have 5 TextInput widgets

TextInput:

    id: IPValue1

    write_tab: False

    multiline: False

    on_text: root.nextondot(args)

TextInput:

    id: IPValue2

    write_tab: False

    multiline: False

    on_text: root.nextondot(args)

.....

TextInput:

    id: SVport5

    write_tab: False

    multiline: False

    on_text: root.nextondot(args)

and in python

class MainView(Widget):

next = ObjectProperty()

def __init__(self, **kwargs):

super (MainView, self).__init__(**kwargs)

def nextondot(self,args):

self.myData = args[1] 

if len(self.myData)>0:

if self.myData [-1:]=='.':

print '. detected'

                                # need to focus the next TextInput

                                # TODO > check for ":" for the port value (might focus port value text input when : detected) 

                                # TODO IP info port can be validated by button or ENTER ---- TBD

else:

print 'no text input -> nothing to do here -> grab beer '

Now i want to be able to focus the next text widget when the user presses ".". I am asking for an IP and a PORT for a server. I want the user to be able to 

192. <- here i want the next text input to be focused 168. <- here i want the next text input to be focused etc. 

I am removing the dot from text input text and adding it back latter in the code at the final IPPort string.

Thank You

[ZenCODE]

How does this work for you?

from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
from kivy.app import App

Builder.load_string('''
<MainView>:
    orientation: 'horizontal'
    TextInput:
        focus: True
        id: t1

        write_tab: False
        multiline: False
        on_text: root.nextondot(args)

        focus_next: t2

    TextInput:
        id: t2
        focus_next: t3

        write_tab: False
        multiline: False
        on_text: root.nextondot(args)
   
    TextInput:

        id: t3
        focus_next: t1

        write_tab: False
        multiline: False
        on_text: root.nextondot(args)

''')


class MainView(BoxLayout):

    def nextondot(self, args):
        data = args[1]
        if len(data) > 0:
            # if data [-1:] == '.':  # Still allows them to insert dots in the
            # middle.
            if data.find('.') > 0:
                args[0].text = data.replace('.', '')
                args[0].focus_next.focus = True

class MainApp(App):
    def build(self):
        return MainView()

MainApp().run()

[Andrei Sima]

THANK YOU.

Your example works like a charm. I will go deep into:

args[0].text = data.replace('.', '')
args[0].focus_next.focus = True

to see what are they doing behind the scene.

But (there always must be a but dammit).

Run the code and press dot as a firs char. :) And press it again :) and so on

PLS. do not post solution to that. I will try to fix it. I want to learn not to ask for somebody to do my stuff. 

I will post solution as soon as it is finished.

Thank you very much for your support.

____________________

Andrei Sima

andre...@gmail.com

0723.223.883

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[ZenCODE]

:-) One bug Line 39 should be

            if data.find('.') > -1:

not

            if data.find('.') > 0:

because that allows users to press "." as the first character and nothing will happen. After all these years of programming, I still make "fencepost" errors. <Groan> At least it keeps us humble...

Good luck, it's a pleasure, and please do post back :-)