Kivy Clipboard.copy label text

Question

I want to copy the content of a Label: self.text when I double tap the label, but the following is not working:

main.py

#!/usr/bin/kivy
# -*- coding: utf-8 -*-

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import ObjectProperty


class DoubletapClipboardInterface(BoxLayout):
    pass


class DoubletapClipboardApp(App):
    #copy_clipboard = ObjectProperty()

    def build(self):
        self.title = 'DoubletapClipboard'

        #self.copy_clipboard = DoubletapClipboardInterface()
        return(DoubletapClipboardInterface())   # self.copy_clipboard


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

doubletapclipboard.kv

#:kivy 1.9.0
#:import Clipboard kivy.core.clipboard.Clipboard

<DoubletapClipboardInterface>:
    orientation: 'vertical'

    TextInput:
        hint_text: 'Try to paste here to see if it works'

    Label:
        text: 'Can I be copied?'
        on_double_tap: Clipboard.copy(self.text)  # <-- How do I do this the correct way?

Error

 kivy.lang.builder.BuilderException: Parser: File "/home/stef-ubuntu/bitbucket/kanjiorigin_data/test/doubletap_clipboard/doubletapclipboard.kv", line 11:
 ...
       9:    Label:
      10:        text: 'Can I be copied?'
 >>   11:        on_double_tap: Clipboard.copy(self.text)  # <-- How do I do this the correct way?
 ...
 AttributeError: double_tap
   File "/usr/lib/python3/dist-packages/kivy/lang/builder.py", line 628, in _apply_rule
     raise AttributeError(key)

score 4 · Accepted Answer · answered Sep 23 '16 at 08:40

On suggestion of @MatthiasSchreiber I copied the code from TextInput()

main.py

#!/usr/bin/kivy
# -*- coding: utf-8 -*-

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.properties import ObjectProperty
from kivy.utils import platform

Clipboard = None
CutBuffer = None

class TouchLabel(Label):

    def __init__(self, **kwargs):
        self._touch_count = 0
        super(TouchLabel, self).__init__(**kwargs)
        self.register_event_type('on_double_tap')

        if platform == 'linux':
            self._ensure_clipboard()

    def _ensure_clipboard(self):
        global Clipboard, CutBuffer
        if not Clipboard:
            from kivy.core.clipboard import Clipboard, CutBuffer

    def on_touch_down(self, touch):
        print("hello")
        if self.disabled:
            return

        touch_pos = touch.pos
        if not self.collide_point(*touch_pos):
            return False
        if super(TouchLabel, self).on_touch_down(touch):
            return True

        touch.grab(self)
        self._touch_count += 1
        if touch.is_double_tap:
            self.dispatch('on_double_tap')

    def on_double_tap(self, *args):
        Clipboard.copy(self.text)  # <-- How do I do this the correct way?
        print("Copied :D")


class DoubletapClipboardInterface(BoxLayout):
    pass


class DoubletapClipboardApp(App):

    def build(self):
        self.title = 'DoubletapClipboard'

        return(DoubletapClipboardInterface())


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

doubletabclipboard.kv

#:kivy 1.9.0
# #:import Clipboard kivy.core.clipboard.Clipboard

<TouchLabel>

<DoubletapClipboardInterface>:
    orientation: 'vertical'

    TextInput:
        hint_text: 'Try to paste here to see if it works'

    TouchLabel:
        text: 'Can I be copied?'
        #on_double_tap: Clipboard.copy(self.text)  # <-- not working

score 2 · Answer 2 · answered Sep 23 '16 at 08:15

2

There is no "on_double_tap" for a Label, you need to create that method yourself. There is one for TexInput though and you could look how it's done there in the code.

Also, you need to import the Clipboard into your kv file.

answered Sep 23 '16 at 08:15

Matthias Schreiber

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Kivy Clipboard.copy label text

Error

2 Answers2