mirror of
https://github.com/liberatedsystems/openCom-Companion.git
synced 2024-11-30 01:00:37 +01:00
614 lines
17 KiB
Python
614 lines
17 KiB
Python
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"""
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Components/Snackbar
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===================
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.. seealso::
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`Material Design spec, Snackbars <https://material.io/components/snackbars>`_
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.. rubric:: Snackbars provide brief messages about app processes at the bottom
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of the screen.
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/snackbar.png
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:align: center
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Usage
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-----
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.. code-block:: python
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from kivy.lang import Builder
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from kivymd.app import MDApp
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KV = '''
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#:import Snackbar kivymd.uix.snackbar.Snackbar
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Screen:
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MDRaisedButton:
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text: "Create simple snackbar"
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on_release: Snackbar(text="This is a snackbar!").open()
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pos_hint: {"center_x": .5, "center_y": .5}
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'''
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class Test(MDApp):
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def build(self):
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return Builder.load_string(KV)
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Test().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/snackbar-simple.gif
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:align: center
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Usage with snackbar_x, snackbar_y
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---------------------------------
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.. code-block:: python
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Snackbar(
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text="This is a snackbar!",
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snackbar_x="10dp",
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snackbar_y="10dp",
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size_hint_x=(
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Window.width - (dp(10) * 2)
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) / Window.width
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).open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/snackbar-padding.gif
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:align: center
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Control width
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-------------
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.. code-block:: python
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Snackbar(
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text="This is a snackbar!",
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snackbar_x="10dp",
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snackbar_y="10dp",
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size_hint_x=.5
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).open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/snackbar-percent-width.png
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:align: center
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Custom text color
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-----------------
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.. code-block:: python
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Snackbar(
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text="[color=#ddbb34]This is a snackbar![/color]",
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snackbar_y="10dp",
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snackbar_y="10dp",
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size_hint_x=.7
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).open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/snackbar-custom-color.png
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:align: center
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Usage with button
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-----------------
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.. code-block:: python
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snackbar = Snackbar(
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text="This is a snackbar!",
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snackbar_x="10dp",
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snackbar_y="10dp",
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)
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snackbar.size_hint_x = (
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Window.width - (snackbar.snackbar_x * 2)
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) / Window.width
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snackbar.buttons = [
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MDFlatButton(
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text="UPDATE",
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text_color=(1, 1, 1, 1),
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on_release=snackbar.dismiss,
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),
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MDFlatButton(
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text="CANCEL",
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text_color=(1, 1, 1, 1),
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on_release=snackbar.dismiss,
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),
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]
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snackbar.open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/snackbar-button.png
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:align: center
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Using a button with custom color
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--------------------------------
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.. code-block:: python
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Snackbar(
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...
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bg_color=(0, 0, 1, 1),
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).open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/snackbar-button-custom-color.png
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:align: center
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Custom usage
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------------
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.. code-block:: python
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from kivy.lang import Builder
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from kivy.animation import Animation
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from kivy.clock import Clock
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from kivy.metrics import dp
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from kivymd.app import MDApp
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from kivymd.uix.snackbar import Snackbar
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KV = '''
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Screen:
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MDFloatingActionButton:
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id: button
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x: root.width - self.width - dp(10)
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y: dp(10)
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on_release: app.snackbar_show()
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'''
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class Test(MDApp):
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.screen = Builder.load_string(KV)
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self.snackbar = None
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self._interval = 0
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def build(self):
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return self.screen
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def wait_interval(self, interval):
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self._interval += interval
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if self._interval > self.snackbar.duration + 0.5:
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anim = Animation(y=dp(10), d=.2)
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anim.start(self.screen.ids.button)
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Clock.unschedule(self.wait_interval)
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self._interval = 0
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self.snackbar = None
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def snackbar_show(self):
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if not self.snackbar:
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self.snackbar = Snackbar(text="This is a snackbar!")
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self.snackbar.open()
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anim = Animation(y=dp(72), d=.2)
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anim.bind(on_complete=lambda *args: Clock.schedule_interval(
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self.wait_interval, 0))
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anim.start(self.screen.ids.button)
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Test().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/snackbar-custom-usage.gif
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:align: center
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Custom Snackbar
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---------------
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.. code-block:: python
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from kivy.lang import Builder
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from kivy.core.window import Window
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from kivy.properties import StringProperty, NumericProperty
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from kivymd.app import MDApp
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from kivymd.uix.button import MDFlatButton
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from kivymd.uix.snackbar import BaseSnackbar
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KV = '''
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<CustomSnackbar>
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MDIconButton:
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pos_hint: {'center_y': .5}
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icon: root.icon
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opposite_colors: True
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MDLabel:
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id: text_bar
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size_hint_y: None
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height: self.texture_size[1]
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text: root.text
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font_size: root.font_size
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theme_text_color: 'Custom'
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text_color: 'ffffff'
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shorten: True
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shorten_from: 'right'
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pos_hint: {'center_y': .5}
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Screen:
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MDRaisedButton:
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text: "SHOW"
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pos_hint: {"center_x": .5, "center_y": .45}
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on_press: app.show()
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'''
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class CustomSnackbar(BaseSnackbar):
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text = StringProperty(None)
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icon = StringProperty(None)
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font_size = NumericProperty("15sp")
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class Test(MDApp):
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def build(self):
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return Builder.load_string(KV)
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def show(self):
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snackbar = CustomSnackbar(
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text="This is a snackbar!",
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icon="information",
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snackbar_x="10dp",
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snackbar_y="10dp",
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buttons=[MDFlatButton(text="ACTION", text_color=(1, 1, 1, 1))]
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)
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snackbar.size_hint_x = (
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Window.width - (snackbar.snackbar_x * 2)
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) / Window.width
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snackbar.open()
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Test().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/snackbar-custom.png
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:align: center
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"""
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__all__ = ("Snackbar", "BaseSnackbar")
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import os
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from kivy.animation import Animation
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from kivy.clock import Clock
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from kivy.core.window import Window
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from kivy.lang import Builder
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from kivy.properties import (
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BooleanProperty,
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ColorProperty,
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ListProperty,
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NumericProperty,
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OptionProperty,
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StringProperty,
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)
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from kivymd import uix_path
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from kivymd.uix.behaviors import FakeRectangularElevationBehavior
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from kivymd.uix.button import BaseButton
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from kivymd.uix.card import MDCard
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with open(
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os.path.join(uix_path, "snackbar", "snackbar.kv"), encoding="utf-8"
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) as kv_file:
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Builder.load_string(kv_file.read())
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class BaseSnackbar(MDCard, FakeRectangularElevationBehavior):
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"""
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:Events:
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:attr:`on_open`
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Called when a dialog is opened.
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:attr:`on_dismiss`
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When the front layer rises.
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Abstract base class for all Snackbars.
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This class handles sizing, positioning, shape and events for Snackbars
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All Snackbars will be made off of this `BaseSnackbar`.
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`BaseSnackbar` will always try to fill the remainder of the screen with
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your Snackbar.
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To make your Snackbar dynamic and symetric with snackbar_x.
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Set size_hint_x like below:
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.. code-block:: python
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size_hint_z = (
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Window.width - (snackbar_x * 2)
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) / Window.width
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"""
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duration = NumericProperty(3)
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"""
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The amount of time that the snackbar will stay on screen for.
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:attr:`duration` is a :class:`~kivy.properties.NumericProperty`
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and defaults to `3`.
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"""
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auto_dismiss = BooleanProperty(True)
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"""
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Whether to use automatic closing of the snackbar or not.
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:attr:`auto_dismiss` is a :class:`~kivy.properties.BooleanProperty`
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and defaults to `'True'`.
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"""
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bg_color = ColorProperty(None)
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"""
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Snackbar background.
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:attr:`bg_color` is a :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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buttons = ListProperty()
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"""
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Snackbar buttons.
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:attr:`buttons` is a :class:`~kivy.properties.ListProperty`
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and defaults to `'[]'`
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"""
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radius = ListProperty([5, 5, 5, 5])
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"""
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Snackbar radius.
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:attr:`radius` is a :class:`~kivy.properties.ListProperty`
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and defaults to `'[5, 5, 5, 5]'`
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"""
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snackbar_animation_dir = OptionProperty(
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"Bottom",
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options=["Top", "Bottom", "Left", "Right"],
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)
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"""
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Snackbar animation direction.
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Available options are: `"Top"`, `"Bottom"`, `"Left"`, `"Right"`
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:attr:`snackbar_animation_dir` is an :class:`~kivy.properties.OptionProperty`
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and defaults to `'Bottom'`.
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"""
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snackbar_x = NumericProperty("0dp")
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"""
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The snackbar x position in the screen
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:attr:`snackbar_x` is a :class:`~kivy.properties.NumericProperty`
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and defaults to `0dp`.
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"""
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snackbar_y = NumericProperty("0dp")
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"""
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The snackbar x position in the screen
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:attr:`snackbar_y` is a :class:`~kivy.properties.NumericProperty`
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and defaults to `0dp`.
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"""
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_interval = 0
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.register_event_type("on_open")
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self.register_event_type("on_dismiss")
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def dismiss(self, *args):
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"""Dismiss the snackbar."""
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def dismiss(interval):
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if self.snackbar_animation_dir == "Top":
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anim = Animation(y=(Window.height + self.height), d=0.2)
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elif self.snackbar_animation_dir == "Left":
|
||
|
|
anim = Animation(x=-self.width, d=0.2)
|
||
|
|
elif self.snackbar_animation_dir == "Right":
|
||
|
|
anim = Animation(x=Window.width, d=0.2)
|
||
|
|
else:
|
||
|
|
anim = Animation(y=-self.height, d=0.2)
|
||
|
|
|
||
|
|
anim.bind(
|
||
|
|
on_complete=lambda *args: Window.parent.remove_widget(self)
|
||
|
|
)
|
||
|
|
anim.start(self)
|
||
|
|
|
||
|
|
Clock.schedule_once(dismiss, 0.5)
|
||
|
|
self.dispatch("on_dismiss")
|
||
|
|
|
||
|
|
def open(self):
|
||
|
|
"""Show the snackbar."""
|
||
|
|
|
||
|
|
def wait_interval(interval):
|
||
|
|
self._interval += interval
|
||
|
|
if self._interval > self.duration:
|
||
|
|
self.dismiss()
|
||
|
|
Clock.unschedule(wait_interval)
|
||
|
|
self._interval = 0
|
||
|
|
|
||
|
|
for c in Window.parent.children:
|
||
|
|
if isinstance(c, BaseSnackbar):
|
||
|
|
return
|
||
|
|
|
||
|
|
if self.snackbar_y > (Window.height - self.height):
|
||
|
|
self.snackbar_y = Window.height - self.height
|
||
|
|
|
||
|
|
self._calc_radius()
|
||
|
|
|
||
|
|
if self.size_hint_x == 1:
|
||
|
|
self.size_hint_x = (Window.width - self.snackbar_x) / Window.width
|
||
|
|
|
||
|
|
if (
|
||
|
|
self.snackbar_animation_dir == "Top"
|
||
|
|
or self.snackbar_animation_dir == "Bottom"
|
||
|
|
):
|
||
|
|
self.x = self.snackbar_x
|
||
|
|
|
||
|
|
if self.snackbar_animation_dir == "Top":
|
||
|
|
self.y = Window.height + self.height
|
||
|
|
else:
|
||
|
|
self.y = -self.height
|
||
|
|
|
||
|
|
Window.parent.add_widget(self)
|
||
|
|
|
||
|
|
if self.snackbar_animation_dir == "Top":
|
||
|
|
anim = Animation(
|
||
|
|
y=self.snackbar_y
|
||
|
|
if self.snackbar_y != 0
|
||
|
|
else Window.height - self.height,
|
||
|
|
d=0.2,
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
anim = Animation(
|
||
|
|
y=self.snackbar_y if self.snackbar_y != 0 else 0, d=0.2
|
||
|
|
)
|
||
|
|
|
||
|
|
elif (
|
||
|
|
self.snackbar_animation_dir == "Left"
|
||
|
|
or self.snackbar_animation_dir == "Right"
|
||
|
|
):
|
||
|
|
self.y = self.snackbar_y
|
||
|
|
|
||
|
|
if self.snackbar_animation_dir == "Left":
|
||
|
|
self.x = -Window.width
|
||
|
|
else:
|
||
|
|
self.x = Window.width
|
||
|
|
|
||
|
|
Window.parent.add_widget(self)
|
||
|
|
anim = Animation(
|
||
|
|
x=self.snackbar_x if self.snackbar_x != 0 else 0, d=0.2
|
||
|
|
)
|
||
|
|
|
||
|
|
if self.auto_dismiss:
|
||
|
|
anim.bind(
|
||
|
|
on_complete=lambda *args: Clock.schedule_interval(
|
||
|
|
wait_interval, 0
|
||
|
|
)
|
||
|
|
)
|
||
|
|
anim.start(self)
|
||
|
|
self.dispatch("on_open")
|
||
|
|
|
||
|
|
def on_open(self, *args):
|
||
|
|
"""Called when a dialog is opened."""
|
||
|
|
|
||
|
|
def on_dismiss(self, *args):
|
||
|
|
"""Called when the dialog is closed."""
|
||
|
|
|
||
|
|
def on_buttons(self, instance, value):
|
||
|
|
def on_buttons(interval):
|
||
|
|
for button in value:
|
||
|
|
if issubclass(button.__class__, (BaseButton,)):
|
||
|
|
self.add_widget(button)
|
||
|
|
else:
|
||
|
|
raise ValueError(
|
||
|
|
f"The {button} object must be inherited from the base class <BaseButton>"
|
||
|
|
)
|
||
|
|
|
||
|
|
Clock.schedule_once(on_buttons)
|
||
|
|
|
||
|
|
def _calc_radius(self):
|
||
|
|
if (
|
||
|
|
self.snackbar_animation_dir == "Top"
|
||
|
|
or self.snackbar_animation_dir == "Bottom"
|
||
|
|
):
|
||
|
|
|
||
|
|
if self.snackbar_y == 0 and self.snackbar_x == 0:
|
||
|
|
|
||
|
|
if self.size_hint_x == 1:
|
||
|
|
self.radius = [0, 0, 0, 0]
|
||
|
|
else:
|
||
|
|
if self.snackbar_animation_dir == "Top":
|
||
|
|
self.radius = [0, 0, self.radius[2], 0]
|
||
|
|
else:
|
||
|
|
self.radius = [0, self.radius[1], 0, 0]
|
||
|
|
|
||
|
|
elif self.snackbar_y != 0 and self.snackbar_x == 0:
|
||
|
|
|
||
|
|
if self.size_hint_x == 1:
|
||
|
|
self.radius = [0, 0, 0, 0]
|
||
|
|
else:
|
||
|
|
if self.snackbar_y >= Window.height - self.height:
|
||
|
|
self.radius = [0, 0, self.radius[2], 0]
|
||
|
|
else:
|
||
|
|
self.radius = [0, self.radius[1], self.radius[2], 0]
|
||
|
|
|
||
|
|
elif self.snackbar_y == 0 and self.snackbar_x != 0:
|
||
|
|
|
||
|
|
if self.size_hint_x == 1:
|
||
|
|
if self.snackbar_animation_dir == "Top":
|
||
|
|
self.radius = [0, 0, 0, self.radius[3]]
|
||
|
|
else:
|
||
|
|
self.radius = [self.radius[0], 0, 0, 0]
|
||
|
|
else:
|
||
|
|
if self.snackbar_animation_dir == "Top":
|
||
|
|
self.radius = [0, 0, self.radius[2], self.radius[3]]
|
||
|
|
else:
|
||
|
|
self.radius = [self.radius[0], self.radius[1], 0, 0]
|
||
|
|
|
||
|
|
else: # self.snackbar_y != 0 and self.snackbar_x != 0
|
||
|
|
|
||
|
|
if self.size_hint_x == 1:
|
||
|
|
self.radius = [self.radius[0], 0, 0, self.radius[3]]
|
||
|
|
elif self.snackbar_y >= Window.height - self.height:
|
||
|
|
self.radius = [0, 0, self.radius[2], self.radius[3]]
|
||
|
|
|
||
|
|
elif (
|
||
|
|
self.snackbar_animation_dir == "Left"
|
||
|
|
or self.snackbar_animation_dir == "Right"
|
||
|
|
):
|
||
|
|
|
||
|
|
if self.snackbar_y == 0 and self.snackbar_x == 0:
|
||
|
|
|
||
|
|
if self.size_hint_x == 1:
|
||
|
|
self.radius = [0, 0, 0, 0]
|
||
|
|
else:
|
||
|
|
self.radius = [0, self.radius[1], 0, 0]
|
||
|
|
|
||
|
|
elif self.snackbar_y != 0 and self.snackbar_x == 0:
|
||
|
|
|
||
|
|
if self.size_hint_x == 1:
|
||
|
|
self.radius = [0, 0, 0, 0]
|
||
|
|
else:
|
||
|
|
self.radius = [0, self.radius[1], self.radius[2], 0]
|
||
|
|
|
||
|
|
elif self.snackbar_y == 0 and self.snackbar_x != 0:
|
||
|
|
|
||
|
|
if self.size_hint_x == 1:
|
||
|
|
self.radius = [self.radius[0], 0, 0, 0]
|
||
|
|
else:
|
||
|
|
self.radius = [self.radius[0], self.radius[1], 0, 0]
|
||
|
|
|
||
|
|
else: # self.snackbar_y != 0 and self.snackbar_x != 0
|
||
|
|
|
||
|
|
if self.size_hint_x == 1:
|
||
|
|
if self.snackbar_y >= Window.height - self.height:
|
||
|
|
self.radius = [0, 0, 0, self.radius[3]]
|
||
|
|
else:
|
||
|
|
self.radius = [self.radius[0], 0, 0, self.radius[3]]
|
||
|
|
elif self.snackbar_y >= Window.height - self.height:
|
||
|
|
self.radius = [0, 0, self.radius[2], self.radius[3]]
|
||
|
|
|
||
|
|
|
||
|
|
class Snackbar(BaseSnackbar):
|
||
|
|
"""
|
||
|
|
Snackbar inherits all its functionality from `BaseSnackbar`
|
||
|
|
"""
|
||
|
|
|
||
|
|
text = StringProperty()
|
||
|
|
"""
|
||
|
|
The text that will appear in the snackbar.
|
||
|
|
|
||
|
|
:attr:`text` is a :class:`~kivy.properties.StringProperty`
|
||
|
|
and defaults to `''`.
|
||
|
|
"""
|
||
|
|
|
||
|
|
font_size = NumericProperty("15sp")
|
||
|
|
"""
|
||
|
|
The font size of the text that will appear in the snackbar.
|
||
|
|
|
||
|
|
:attr:`font_size` is a :class:`~kivy.properties.NumericProperty` and
|
||
|
|
defaults to `'15sp'`.
|
||
|
|
"""
|