from kivy.config import Config
Config.set('kivy', 'keyboard_mode', 'multi')
from kivymd.app import MDApp
from kivy.lang import Builder
from kivymd.uix.screen import MDScreen
from kivy.uix.screenmanager import ScreenManager
from kivymd.uix.textfield import MDTextFieldRound
from kivy.properties import NumericProperty
from kivy.core.window import Window


#import json



KV=('''


<REGITRATION_Window>:
    name:'regitration_window1'
    #RelativeLayout:

    MDToolbar:
        title: 'About'
        elevation: 10
        left_action_items: [['arrow-left', lambda x: app.change_screen('login_window1')]]
        pos_hint: {"left":1, "top":1}


    MDLabel:
        text: 'Full Name'
        font_size: 15
        pos_hint : {'x':0.0322, 'y':0.35}

    mainkeypad:
        max_characters: 70
        hint_text: 'For Eg:- xxx yyy zzz'
        pos_hint : {'x':0.0322, 'y':0.790}
        size_hint : 0.6, .045


    MDLabel:
        text: 'Country Code '
        font_size: 15
        pos_hint : {'x':0.0322, 'y':0.272}

    NumericInput:
        max_characters: 3
        int_text: 'For Eg:- +91'
        pos_hint : {'x':0.0322, 'y':0.710}
        size_hint : 0.09, .045

    MDLabel:
        text: 'Mobile Number'
        font_size: 15
        pos_hint : {'x':0.305, 'y':0.272}

    NumericInput:
        max_characters: 10
        hint_text: 'For Eg:- 987654321'
        pos_hint :{'x':0.305, 'y':0.710}
        size_hint : 0.35, .045


    MDLabel:
        text: 'Location'
        font_size: 15
        pos_hint : {'x':0.0322, 'y':0.190}

    mainkeypad:
        max_characters: 70
        hint_text: 'For Eg:- kalyan'
        pos_hint : {'x':0.0322, 'y':0.630}
        size_hint : 0.6, .045

    MDLabel:
        text: 'Pin Code'
        font_size: 15
        pos_hint : {'x':0.0322, 'y':0.11}

    mainkeypad:
        max_characters: 7
        hint_text: 'For Eg:- 400050'
        pos_hint : {'x':0.0322, 'y':0.550}
        size_hint : 0.6, .045

    MDLabel:
        text: 'City/Town/Village'
        font_size: 15
        pos_hint : {'x':0.0322, 'y':0.03}

    mainkeypad:
        max_characters: 70
        hint_text: 'For Eg:- Mumbai'
        pos_hint : {'x':0.0322, 'y':0.470}
        size_hint : 0.6, .045

    MDLabel:
        text: 'District/Taluka'
        font_size: 15
        pos_hint : {'x':0.0322, 'y':-0.05}

    mainkeypad:
        max_characters: 70
        hint_text: 'For Eg:- Mumbai'
        pos_hint : {'x':0.0322, 'y':0.390}
        size_hint : 0.6, .045



    MDLabel:
        text: 'State'
        font_size: 15
        pos_hint : {'x':0.0322, 'y':-0.13}

    mainkeypad:
        max_characters: 70
        hint_text: 'For Eg:- Maharashtra'
        pos_hint : {'x':0.0322, 'y':0.310}
        size_hint : 0.6, .045


    MDLabel:
        text: 'Country'
        font_size: 15
        pos_hint : {'x':0.0322, 'y':-0.21}

    mainkeypad:
        max_characters: 70
        hint_text: 'For Eg:- India'
        pos_hint : {'x':0.0322, 'y':0.230}
        size_hint : 0.6, .045



    MDLabel:
        text: 'Password'
        font_size: 15
        pos_hint : {'x':0.0322, 'y':-0.29}

    mainkeypad:
        max_characters: 70

        hint_text: 'For Eg:-   sdsddssd'
        pos_hint : {'x':0.0322, 'y':0.150}
        size_hint : 0.6, .045



    MDLabel:
        text: 'Confirm Password'
        font_size: 15
        pos_hint : {'x':0.0322, 'y':-0.37}

    mainkeypad:
        max_characters: 70

        hint_text: 'For Eg:- SSdssds'
        pos_hint : {'x':0.0322, 'y':0.070}
        size_hint : 0.6, .045



    MDFillRoundFlatButton:
        text:'REGISTER'
        pos_hint: {'x':.1, 'y':.1}
    MDFillRoundFlatButton:
        text:'Cancel'
        pos_hint: {'x':.3, 'y':.1}


WindowManager:
    REGITRATION_Window:
        id: key_num

            ''')


class REGITRATION_Window(MDScreen):
    pass
    #def open_keypad(self):
        #self.root.ids.key_num.ids.data_layout.add_widget(self.setup_keyboard)

class WindowManager(ScreenManager):
    pass


class NumericInput(MDTextFieldRound):
    max_characters = NumericProperty()

    def __init__(self, **kwargs):
        super().__init__(input_filter=self.char_limit, **kwargs)

    def on_focus(self, instance_text_field, focus_value: bool):
        # on focus request a numeric keyboard
        if focus_value:
            num_kb = Window.request_keyboard(self.close_key, self)
            if num_kb.widget:
                num_kb.widget.layout = 'numeric.json'

    def close_key(self):
        pass

    def char_limit(self, substring, from_undo):
        if len(self.text) < self.max_characters:
            return substring

class mainkeypad(MDTextFieldRound):

    def __init__(self, **kwargs):
        super().__init__(input_filter=self.char_limit, **kwargs)

        Window.request_keyboard(self._keyboard_closed, self.text)


    def _keyboard_closed(self):
        pass


    def char_limit(self, substring, from_undo):
        if len(self.text) < self.max_characters:
            return substring






class MainApp(MDApp):
    def build(self):
        return Builder.load_string(KV)


if __name__ == '__main__':
    MainApp().run()