Fixes TextInputCutCopyPaste

kivy/data/style.kv

@@ -46,8 +46,6 @@
     background_disabled_normal: 'atlas://data/images/defaulttheme/bubble_btn'
     background_disabled_down: 'atlas://data/images/defaulttheme/bubble_btn_pressed'
     border: (0, 0, 0, 0)
-    size_hint_y: None
-    height: dp(30)
 
 <Slider>:
     canvas:
@@ -201,29 +199,32 @@
             rgba: self.disabled_foreground_color if self.disabled else (self.hint_text_color if not self.text else self.foreground_color)
 
 <TextInputCutCopyPaste>:
+    content: content.__self__
     but_cut: cut.__self__
     but_copy: copy.__self__
     but_paste: paste.__self__
     but_selectall: selectall.__self__
 
     size_hint: None, None
     size: '150sp', '50sp'
-    BubbleButton:
-        id: cut
-        text: 'Cut'
-        on_release: root.do('cut')
-    BubbleButton:
-        id: copy
-        text: 'Copy'
-        on_release: root.do('copy')
-    BubbleButton:
-        id: paste
-        text: 'Paste'
-        on_release: root.do('paste')
-    BubbleButton:
-        id: selectall
-        text: 'Select All'
-        on_release: root.do('selectall')
+    BubbleContent:
+        id: content
+        BubbleButton:
+            id: cut
+            text: 'Cut'
+            on_release: root.do('cut')
+        BubbleButton:
+            id: copy
+            text: 'Copy'
+            on_release: root.do('copy')
+        BubbleButton:
+            id: paste
+            text: 'Paste'
+            on_release: root.do('paste')
+        BubbleButton:
+            id: selectall
+            text: 'Select All'
+            on_release: root.do('selectall')
 
 <CodeInput>:
     font_name: 'data/fonts/RobotoMono-Regular.ttf'

kivy/tests/test_uix_textinput.py

@@ -8,13 +8,12 @@
 
 from kivy.core.window import Window
 from kivy.tests.common import GraphicUnitTest, UTMotionEvent
-from kivy.uix.textinput import TextInput
+from kivy.uix.textinput import TextInput, TextInputCutCopyPaste
 from kivy.uix.widget import Widget
 from kivy.clock import Clock
 
 touch_id = count()
 
-
 class TextInputTest(unittest.TestCase):
 
     def test_focusable_when_disabled(self):
@@ -546,6 +545,13 @@ def make_scrollable_text_input(self, num_of_lines=30, n_lines_to_show=10):
         self.advance_frames(1)
         return ti
 
+    def test_cutcopypastebubble_content(self):
+        tibubble = TextInputCutCopyPaste(textinput=TextInput())
+        assert tibubble.but_copy.parent == tibubble.content
+        assert tibubble.but_cut.parent == tibubble.content
+        assert tibubble.but_paste.parent == tibubble.content
+        assert tibubble.but_selectall.parent == tibubble.content
+
 
 def ti_height_for_x_lines(ti, x):
     """Calculate TextInput height required to display x lines in viewport.

kivy/uix/textinput.py

@@ -164,7 +164,7 @@ def insert_text(self, substring, from_undo=False):
 from kivy.graphics.texture import Texture
 
 from kivy.uix.widget import Widget
-from kivy.uix.bubble import Bubble, BubbleContent
+from kivy.uix.bubble import Bubble
 from kivy.uix.behaviors import ButtonBehavior
 from kivy.uix.image import Image
 
@@ -306,8 +306,6 @@ def __init__(self, **kwargs):
         super().__init__(**kwargs)
         self._check_parent_ev = Clock.schedule_interval(self._check_parent, .5)
         self.matrix = self.textinput.get_window_matrix()
-        self.bubble_content = BubbleContent
-        self.add_widget(self.bubble_content)
 
         with self.canvas.before:
             Callback(self.update_transform)
@@ -374,7 +372,7 @@ def on_parent(self, instance, value):
         mode = self.mode
 
         if parent:
-            self.bubble_content.clear_widgets()
+            self.content.clear_widgets()
             if mode == 'paste':
                 # show only paste on long touch
                 self.but_selectall.opacity = 1
@@ -389,7 +387,7 @@ def on_parent(self, instance, value):
                 widget_list = (self.but_cut, self.but_copy, self.but_paste)
 
             for widget in widget_list:
-                self.bubble_content.add_widget(widget)
+                self.content.add_widget(widget)
 
     def do(self, action):
         textinput = self.textinput