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Sideband/sbapp/kivymd/uix/navigationdrawer/navigationdrawer.py

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"""
Components/NavigationDrawer
===========================
.. seealso::
`Material Design 2 spec, Navigation drawer <https://material.io/components/navigation-drawer>`_ and
`Material Design 3 spec, Navigation drawer <https://m3.material.io/components/navigation-drawer/overview>`_
.. rubric:: Navigation drawers provide access to destinations in your app.
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer.png
:align: center
When using the class :class:`~MDNavigationDrawer` skeleton of your `KV` markup
should look like this:
Anatomy
-------
.. code-block:: kv
Root:
MDNavigationLayout:
MDScreenManager:
Screen_1:
Screen_2:
MDNavigationDrawer:
# This custom rule should implement what will be appear in your
# MDNavigationDrawer.
ContentNavigationDrawer:
A simple example
----------------
.. tabs::
.. tab:: Declarative KV styles
.. code-block:: python
from kivy.lang import Builder
from kivymd.uix.boxlayout import MDBoxLayout
from kivymd.app import MDApp
KV = '''
MDScreen:
MDNavigationLayout:
MDScreenManager:
MDScreen:
MDTopAppBar:
title: "Navigation Drawer"
elevation: 10
pos_hint: {"top": 1}
md_bg_color: "#e7e4c0"
specific_text_color: "#4a4939"
left_action_items:
[['menu', lambda x: nav_drawer.set_state("open")]]
MDNavigationDrawer:
id: nav_drawer
radius: (0, 16, 16, 0)
ContentNavigationDrawer:
'''
class ContentNavigationDrawer(MDBoxLayout):
pass
class Example(MDApp):
def build(self):
self.theme_cls.theme_style = "Dark"
return Builder.load_string(KV)
Example().run()
.. tab:: Declarative python styles
.. code-block:: python
from kivymd.app import MDApp
from kivymd.uix.boxlayout import MDBoxLayout
from kivymd.uix.navigationdrawer import MDNavigationLayout, MDNavigationDrawer
from kivymd.uix.screen import MDScreen
from kivymd.uix.screenmanager import MDScreenManager
from kivymd.uix.toolbar import MDTopAppBar
class ContentNavigationDrawer(MDBoxLayout):
pass
class Example(MDApp):
def build(self):
self.theme_cls.theme_style = "Dark"
return(
MDScreen(
MDNavigationLayout(
MDScreenManager(
MDScreen(
MDTopAppBar(
title="Navigation Drawer",
elevation=10,
pos_hint={"top": 1},
md_bg_color="#e7e4c0",
specific_text_color="#4a4939",
left_action_items=[
['menu', lambda x: self.nav_drawer_open()]
],
)
)
),
MDNavigationDrawer(
ContentNavigationDrawer(),
id="nav_drawer",
radius=(0, 16, 16, 0),
),
),
),
)
def nav_drawer_open(self, *args):
nav_drawer = self.root.children[0].ids.nav_drawer
nav_drawer.set_state("open")
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer.gif
:align: center
.. Note:: :class:`~MDNavigationDrawer` is an empty
:class:`~kivymd.uix.card.MDCard` panel.
Standard content for the navigation bar
---------------------------------------
.. tabs::
.. tab:: Declarative KV styles
.. code-block:: python
from kivy.lang import Builder
from kivymd.app import MDApp
KV = '''
<DrawerClickableItem@MDNavigationDrawerItem>
focus_color: "#e7e4c0"
text_color: "#4a4939"
icon_color: "#4a4939"
ripple_color: "#c5bdd2"
selected_color: "#0c6c4d"
<DrawerLabelItem@MDNavigationDrawerItem>
text_color: "#4a4939"
icon_color: "#4a4939"
focus_behavior: False
selected_color: "#4a4939"
_no_ripple_effect: True
MDScreen:
MDNavigationLayout:
MDScreenManager:
MDScreen:
MDTopAppBar:
title: "Navigation Drawer"
elevation: 10
pos_hint: {"top": 1}
md_bg_color: "#e7e4c0"
specific_text_color: "#4a4939"
left_action_items: [["menu", lambda x: nav_drawer.set_state("open")]]
MDNavigationDrawer:
id: nav_drawer
radius: (0, 16, 16, 0)
MDNavigationDrawerMenu:
MDNavigationDrawerHeader:
title: "Header title"
title_color: "#4a4939"
text: "Header text"
spacing: "4dp"
padding: "12dp", 0, 0, "56dp"
MDNavigationDrawerLabel:
text: "Mail"
DrawerClickableItem:
icon: "gmail"
right_text: "+99"
text_right_color: "#4a4939"
text: "Inbox"
DrawerClickableItem:
icon: "send"
text: "Outbox"
MDNavigationDrawerDivider:
MDNavigationDrawerLabel:
text: "Labels"
DrawerLabelItem:
icon: "information-outline"
text: "Label"
DrawerLabelItem:
icon: "information-outline"
text: "Label"
'''
class Example(MDApp):
def build(self):
self.theme_cls.theme_style = "Dark"
return Builder.load_string(KV)
Example().run()
.. tab:: Declarative python styles
.. code-block:: python
from kivymd.app import MDApp
from kivymd.uix.navigationdrawer import (
MDNavigationLayout,
MDNavigationDrawer,
MDNavigationDrawerMenu,
MDNavigationDrawerHeader,
MDNavigationDrawerLabel,
MDNavigationDrawerDivider,
MDNavigationDrawerItem,
)
from kivymd.uix.screen import MDScreen
from kivymd.uix.screenmanager import MDScreenManager
from kivymd.uix.toolbar import MDTopAppBar
class BaseNavigationDrawerItem(MDNavigationDrawerItem):
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.radius = 24
self.text_color = "#4a4939"
self.icon_color = "#4a4939"
self.focus_color = "#e7e4c0"
class DrawerLabelItem(BaseNavigationDrawerItem):
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.focus_behavior = False
self._no_ripple_effect = True
self.selected_color = "#4a4939"
class DrawerClickableItem(BaseNavigationDrawerItem):
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.ripple_color = "#c5bdd2"
self.selected_color = "#0c6c4d"
class Example(MDApp):
def build(self):
self.theme_cls.theme_style = "Dark"
return(
MDScreen(
MDNavigationLayout(
MDScreenManager(
MDScreen(
MDTopAppBar(
title="Navigation Drawer",
elevation=10,
pos_hint={"top": 1},
md_bg_color="#e7e4c0",
specific_text_color="#4a4939",
left_action_items=[
['menu', lambda x: self.nav_drawer_open()]
],
)
)
),
MDNavigationDrawer(
MDNavigationDrawerMenu(
MDNavigationDrawerHeader(
title="Header title",
title_color="#4a4939",
text="Header text",
spacing="4dp",
padding=("12dp", 0, 0, "56dp"),
),
MDNavigationDrawerLabel(
text="Mail",
),
DrawerClickableItem(
icon="gmail",
right_text="+99",
text_right_color="#4a4939",
text="Inbox",
),
DrawerClickableItem(
icon="send",
text="Outbox",
),
MDNavigationDrawerDivider(),
MDNavigationDrawerLabel(
text="Labels",
),
DrawerLabelItem(
icon="information-outline",
text="Label",
),
DrawerLabelItem(
icon="information-outline",
text="Label",
),
),
id="nav_drawer",
radius=(0, 16, 16, 0),
)
)
)
)
def nav_drawer_open(self, *args):
nav_drawer = self.root.children[0].ids.nav_drawer
nav_drawer.set_state("open")
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-standatd-content.gif
:align: center
Switching screens in the ``ScreenManager`` and using the common ``MDTopAppBar``
-----------------------------------------------------------------------------
.. tabs::
.. tab:: Declarative KV styles
.. code-block:: python
from kivy.lang import Builder
from kivy.properties import ObjectProperty
from kivymd.app import MDApp
from kivymd.uix.scrollview import MDScrollView
KV = '''
<ContentNavigationDrawer>
MDList:
OneLineListItem:
text: "Screen 1"
on_press:
root.nav_drawer.set_state("close")
root.screen_manager.current = "scr 1"
OneLineListItem:
text: "Screen 2"
on_press:
root.nav_drawer.set_state("close")
root.screen_manager.current = "scr 2"
MDScreen:
MDTopAppBar:
pos_hint: {"top": 1}
elevation: 10
title: "MDNavigationDrawer"
left_action_items: [["menu", lambda x: nav_drawer.set_state("open")]]
MDNavigationLayout:
MDScreenManager:
id: screen_manager
MDScreen:
name: "scr 1"
MDLabel:
text: "Screen 1"
halign: "center"
MDScreen:
name: "scr 2"
MDLabel:
text: "Screen 2"
halign: "center"
MDNavigationDrawer:
id: nav_drawer
radius: (0, 16, 16, 0)
ContentNavigationDrawer:
screen_manager: screen_manager
nav_drawer: nav_drawer
'''
class ContentNavigationDrawer(MDScrollView):
screen_manager = ObjectProperty()
nav_drawer = ObjectProperty()
class Example(MDApp):
def build(self):
self.theme_cls.primary_palette = "Orange"
self.theme_cls.theme_style = "Dark"
return Builder.load_string(KV)
Example().run()
.. tab:: Declarative python styles
.. code-block:: python
from kivymd.app import MDApp
from kivymd.uix.label import MDLabel
from kivymd.uix.list import MDList, OneLineListItem
from kivymd.uix.navigationdrawer import MDNavigationLayout, MDNavigationDrawer
from kivymd.uix.screen import MDScreen
from kivymd.uix.screenmanager import MDScreenManager
from kivymd.uix.scrollview import MDScrollView
from kivymd.uix.toolbar import MDTopAppBar
class Example(MDApp):
def build(self):
self.theme_cls.primary_palette = "Orange"
self.theme_cls.theme_style = "Dark"
return (
MDScreen(
MDTopAppBar(
pos_hint={"top": 1},
elevation=10,
title="MDNavigationDrawer",
left_action_items=[["menu", lambda x: self.nav_drawer_open()]],
),
MDNavigationLayout(
MDScreenManager(
MDScreen(
MDLabel(
text="Screen 1",
halign="center",
),
name="scr 1",
),
MDScreen(
MDLabel(
text="Screen 2",
halign="center",
),
name="scr 2",
),
id="screen_manager",
),
MDNavigationDrawer(
MDScrollView(
MDList(
OneLineListItem(
text="Screen 1",
on_press=self.switch_screen,
),
OneLineListItem(
text="Screen 2",
on_press=self.switch_screen,
),
),
),
id="nav_drawer",
radius=(0, 16, 16, 0),
),
id="navigation_layout",
)
)
)
def switch_screen(self, instance_list_item: OneLineListItem):
self.root.ids.navigation_layout.ids.screen_manager.current = {
"Screen 1": "scr 1", "Screen 2": "scr 2"
}[instance_list_item.text]
self.root.children[0].ids.nav_drawer.set_state("close")
def nav_drawer_open(self):
nav_drawer = self.root.children[0].ids.nav_drawer
nav_drawer.set_state("open")
Example().run()
"""
__all__ = (
"MDNavigationLayout",
"MDNavigationDrawer",
"MDNavigationDrawerItem",
"MDNavigationDrawerMenu",
"MDNavigationDrawerHeader",
"MDNavigationDrawerLabel",
"MDNavigationDrawerDivider",
)
import os
from typing import Union
from kivy.animation import Animation, AnimationTransition
from kivy.clock import Clock
from kivy.core.window import Window
from kivy.graphics.context_instructions import Color
from kivy.graphics.vertex_instructions import Rectangle
from kivy.lang import Builder
from kivy.properties import (
AliasProperty,
BooleanProperty,
ColorProperty,
NumericProperty,
ObjectProperty,
OptionProperty,
StringProperty,
VariableListProperty,
)
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.screenmanager import ScreenManager
from kivymd import uix_path
from kivymd.uix.behaviors import (
DeclarativeBehavior,
FakeRectangularElevationBehavior,
)
from kivymd.uix.behaviors.focus_behavior import FocusBehavior
from kivymd.uix.boxlayout import MDBoxLayout
from kivymd.uix.card import MDCard
from kivymd.uix.floatlayout import MDFloatLayout
from kivymd.uix.list import MDList, OneLineAvatarIconListItem
from kivymd.uix.scrollview import MDScrollView
from kivymd.uix.toolbar import MDTopAppBar
with open(
os.path.join(uix_path, "navigationdrawer", "navigationdrawer.kv"),
encoding="utf-8",
) as kv_file:
Builder.load_string(kv_file.read())
class NavigationDrawerContentError(Exception):
pass
class MDNavigationLayout(MDFloatLayout):
"""
For more information, see in the :class:`~kivymd.uix.floatlayout.MDFloatLayout`
class documentation.
"""
_scrim_color = ObjectProperty(None)
_scrim_rectangle = ObjectProperty(None)
_screen_manager = ObjectProperty(None)
_navigation_drawer = ObjectProperty(None)
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.bind(width=self.update_pos)
def update_pos(self, instance_navigation_drawer, pos_x: float) -> None:
drawer = self._navigation_drawer
manager = self._screen_manager
if not drawer or not manager:
return
if drawer.type == "standard":
manager.size_hint_x = None
if drawer.anchor == "left":
manager.x = drawer.width + drawer.x
manager.width = self.width - manager.x
else:
manager.x = 0
manager.width = drawer.x
elif drawer.type == "modal":
manager.size_hint_x = None
manager.x = 0
if drawer.anchor == "left":
manager.width = self.width - manager.x
else:
manager.width = self.width
def add_scrim(self, instance_manager: ScreenManager) -> None:
with instance_manager.canvas.after:
self._scrim_color = Color(rgba=[0, 0, 0, 0])
self._scrim_rectangle = Rectangle(
pos=instance_manager.pos, size=instance_manager.size
)
instance_manager.bind(
pos=self.update_scrim_rectangle,
size=self.update_scrim_rectangle,
)
def update_scrim_rectangle(
self, instance_manager: ScreenManager, size: list
) -> None:
self._scrim_rectangle.pos = self.pos
self._scrim_rectangle.size = self.size
def add_widget(self, widget, index=0, canvas=None):
"""
Only two layouts are allowed:
:class:`~kivy.uix.screenmanager.ScreenManager` and
:class:`~MDNavigationDrawer`.
"""
if not isinstance(
widget, (MDNavigationDrawer, ScreenManager, MDTopAppBar)
):
raise NavigationDrawerContentError(
"The MDNavigationLayout must contain "
"only `MDNavigationDrawer` and `ScreenManager`"
)
if isinstance(widget, ScreenManager):
self._screen_manager = widget
self.add_scrim(widget)
if isinstance(widget, MDNavigationDrawer):
self._navigation_drawer = widget
widget.bind(
x=self.update_pos, width=self.update_pos, anchor=self.update_pos
)
if len(self.children) > 3:
raise NavigationDrawerContentError(
"The MDNavigationLayout must contain "
"only `MDNavigationDrawer` and `ScreenManager`"
)
return super().add_widget(widget)
class MDNavigationDrawerLabel(MDBoxLayout):
"""
Implements a label for a menu for :class:`~MDNavigationDrawer` class.
For more information, see in the :class:`~kivymd.uix.boxlayout.MDBoxLayout`
class documentation.
.. versionadded:: 1.0.0
.. code-block:: kv
MDNavigationDrawer:
MDNavigationDrawerMenu:
MDNavigationDrawerLabel:
text: "Mail"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-label.png
:align: center
"""
text = StringProperty()
"""
Text label.
:attr:`text` is a :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
padding = VariableListProperty(["20dp", 0, 0, "8dp"])
"""
Padding between layout box and children: [padding_left, padding_top,
padding_right, padding_bottom].
Padding also accepts a two argument form [padding_horizontal,
padding_vertical] and a one argument form [padding].
:attr:`padding` is a :class:`~kivy.properties.VariableListProperty`
and defaults to `['20dp', 0, 0, '8dp']`.
"""
class MDNavigationDrawerDivider(MDBoxLayout):
"""
Implements a divider for a menu for :class:`~MDNavigationDrawer` class.
For more information, see in the :class:`~kivymd.uix.boxlayout.MDBoxLayout`
class documentation.
.. versionadded:: 1.0.0
.. code-block:: kv
MDNavigationDrawer:
MDNavigationDrawerMenu:
MDNavigationDrawerLabel:
text: "Mail"
MDNavigationDrawerDivider:
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-divider.png
:align: center
"""
padding = VariableListProperty(["20dp", "12dp", 0, "12dp"])
"""
Padding between layout box and children: [padding_left, padding_top,
padding_right, padding_bottom].
Padding also accepts a two argument form [padding_horizontal,
padding_vertical] and a one argument form [padding].
:attr:`padding` is a :class:`~kivy.properties.VariableListProperty`
and defaults to `['20dp', '12dp', 0, '12dp']`.
"""
color = ColorProperty(None)
"""
Divider color in ``rgba`` format.
:attr:`color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
class MDNavigationDrawerHeader(MDBoxLayout):
"""
Implements a header for a menu for :class:`~MDNavigationDrawer` class.
For more information, see in the :class:`~kivymd.uix.boxlayout.MDBoxLayout`
class documentation.
.. versionadded:: 1.0.0
.. code-block:: kv
MDNavigationDrawer:
MDNavigationDrawerMenu:
MDNavigationDrawerHeader:
title: "Header title"
text: "Header text"
spacing: "4dp"
padding: "12dp", 0, 0, "56dp"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-header.png
:align: center
"""
source = StringProperty()
"""
Image logo path.
.. code-block:: kv
MDNavigationDrawer:
MDNavigationDrawerMenu:
MDNavigationDrawerHeader:
title: "Header title"
text: "Header text"
source: "logo.png"
spacing: "4dp"
padding: "12dp", 0, 0, "56dp"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-header-source.png
:align: center
:attr:`source` is a :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
title = StringProperty()
"""
Title shown in the first line.
:attr:`title` is a :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
title_halign = StringProperty("left")
"""
Title halign first line.
:attr:`title_halign` is a :class:`~kivy.properties.StringProperty`
and defaults to `'left'`.
"""
title_color = ColorProperty(None)
"""
Title text color.
:attr:`title_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
title_font_style = StringProperty("H4")
"""
Title shown in the first line.
:attr:`title_font_style` is a :class:`~kivy.properties.StringProperty`
and defaults to `'H4'`.
"""
title_font_size = StringProperty("34sp")
"""
Title shown in the first line.
:attr:`title_font_size` is a :class:`~kivy.properties.StringProperty`
and defaults to `'34sp'`.
"""
text = StringProperty()
"""
Text shown in the second line.
:attr:`text` is a :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
text_halign = StringProperty("left")
"""
Text halign first line.
:attr:`text_halign` is a :class:`~kivy.properties.StringProperty`
and defaults to `'left'`.
"""
text_color = ColorProperty(None)
"""
Title text color.
:attr:`text_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
text_font_style = StringProperty("H6")
"""
Title shown in the first line.
:attr:`text_font_style` is a :class:`~kivy.properties.StringProperty`
and defaults to `'H6'`.
"""
text_font_size = StringProperty("20sp")
"""
Title shown in the first line.
:attr:`text_font_size` is a :class:`~kivy.properties.StringProperty`
and defaults to `'20sp'`.
"""
def __init__(self, **kwargs):
super().__init__(**kwargs)
Clock.schedule_once(self.check_content)
def check_content(self, interval: Union[int, float]) -> None:
"""Removes widgets that the user has not added to the container."""
if not self.title:
self.ids.label_box.remove_widget(self.ids.title)
if not self.text:
self.ids.label_box.remove_widget(self.ids.text)
if not self.source:
self.remove_widget(self.ids.logo)
class MDNavigationDrawerItem(OneLineAvatarIconListItem, FocusBehavior):
"""
Implements an item for the :class:`~MDNavigationDrawer` menu list.
For more information, see in the
:class:`~kivymd.uix.list.OneLineAvatarIconListItem` class documentation.
.. versionadded:: 1.0.0
.. code-block:: kv
MDNavigationDrawer:
MDNavigationDrawerMenu:
MDNavigationDrawerHeader:
title: "Header title"
text: "Header text"
spacing: "4dp"
padding: "12dp", 0, 0, "56dp"
MDNavigationDrawerItem
icon: "gmail"
right_text: "+99"
text: "Inbox"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-item.png
:align: center
"""
selected = BooleanProperty(False)
"""
Is the item selected.
:attr:`selected` is a :class:`~kivy.properties.BooleanProperty`
and defaults to `False`.
"""
icon = StringProperty()
"""
Icon item.
:attr:`icon` is a :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
icon_color = ColorProperty(None)
"""
Icon color item.
:attr:`icon_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
selected_color = ColorProperty([0, 0, 0, 1])
"""
The color of the icon and text of the selected item.
:attr:`selected_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `[0, 0, 0, 1]`.
"""
right_text = StringProperty()
"""
Right text item.
:attr:`right_text` is a :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
text_right_color = ColorProperty(None)
"""
Right text color item.
:attr:`text_right_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
_text_color = None
_text_right_color = None
# kivymd.uix.navigationdrawer.navigationdrawer.MDNavigationDrawerMenu
_drawer_menu = ObjectProperty()
class MDNavigationDrawerMenu(MDScrollView):
"""
Implements a scrollable list for menu items of the
:class:`~MDNavigationDrawer` class.
For more information, see in the
:class:`~kivymd.uix.scrollview.MDScrollView` class documentation.
.. versionadded:: 1.0.0
.. code-block:: kv
MDNavigationDrawer:
MDNavigationDrawerMenu:
# Your menu items.
...
"""
spacing = NumericProperty(0)
"""
Spacing between children, in pixels.
:attr:`spacing` is a :class:`~kivy.properties.NumericProperty`
and defaults to `0`.
"""
def add_widget(self, widget, *args, **kwargs):
if isinstance(widget, MDList):
return super().add_widget(widget, *args, **kwargs)
else:
if isinstance(widget, MDNavigationDrawerItem):
widget._drawer_menu = self
self.ids.menu.add_widget(widget)
def reset_active_color(self, item: MDNavigationDrawerItem) -> None:
for widget in self.ids.menu.children:
if issubclass(widget.__class__, MDNavigationDrawerItem):
if widget != item:
widget.selected = False
else:
widget.selected = True
if (
issubclass(widget.__class__, MDNavigationDrawerItem)
and widget != item
):
if widget._text_color:
widget.text_color = widget._text_color
class MDNavigationDrawer(MDCard, FakeRectangularElevationBehavior):
type = OptionProperty("modal", options=("standard", "modal"))
"""
Type of drawer. Modal type will be on top of screen. Standard type will be
at left or right of screen. Also it automatically disables
:attr:`close_on_click` and :attr:`enable_swiping` to prevent closing
drawer for standard type.
For more information, see in the :class:`~kivymd.uix.card.MDCard`
class documentation.
Standard
--------
.. code-block:: kv
MDNavigationDrawer:
type: "standard"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-standard.gif
:align: center
Modal
-----
.. code-block:: kv
MDNavigationDrawer:
type: "modal"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-modal.gif
:align: center
:attr:`type` is a :class:`~kivy.properties.OptionProperty`
and defaults to `'modal'`.
"""
anchor = OptionProperty("left", options=("left", "right"))
"""
Anchoring screen edge for drawer. Set it to `'right'` for right-to-left
languages. Available options are: `'left'`, `'right'`.
Left
----
.. code-block:: kv
MDNavigationDrawer:
anchor: "left"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-type-left.png
:align: center
Right
-----
.. code-block:: kv
MDNavigationDrawer:
anchor: "right"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-type-right.png
:align: center
:attr:`anchor` is a :class:`~kivy.properties.OptionProperty`
and defaults to `'left'`.
"""
# FIXME: Doesn't work in Kivy v2.1.0.
scrim_color = ColorProperty([0, 0, 0, 0.5])
"""
Color for scrim. Alpha channel will be multiplied with
:attr:`_scrim_alpha`. Set fourth channel to 0 if you want to disable
scrim.
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-scrim-color.png
:align: center
.. code-block:: kv
MDNavigationDrawer:
scrim_color: 0, 0, 0, .8
# scrim_color: 0, 0, 0, .2
:attr:`scrim_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `[0, 0, 0, 0.5]`.
"""
padding = VariableListProperty([16, 16, 12, 16])
"""
Padding between layout box and children: [padding_left, padding_top,
padding_right, padding_bottom].
Padding also accepts a two argument form [padding_horizontal,
padding_vertical] and a one argument form [padding].
.. versionchanged:: 1.0.0
.. code-block:: kv
MDNavigationDrawer:
padding: 56, 56, 12, 16
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/navigation-drawer-padding.png
:align: center
:attr:`padding` is a :class:`~kivy.properties.VariableListProperty` and
defaults to '[16, 16, 12, 16]'.
"""
close_on_click = BooleanProperty(True)
"""
Close when click on scrim or keyboard escape. It automatically sets to
False for "standard" type.
:attr:`close_on_click` is a :class:`~kivy.properties.BooleanProperty`
and defaults to `True`.
"""
state = OptionProperty("close", options=("close", "open"))
"""
Indicates if panel closed or opened. Sets after :attr:`status` change.
Available options are: `'close'`, `'open'`.
:attr:`state` is a :class:`~kivy.properties.OptionProperty`
and defaults to `'close'`.
"""
status = OptionProperty(
"closed",
options=(
"closed",
"opening_with_swipe",
"opening_with_animation",
"opened",
"closing_with_swipe",
"closing_with_animation",
),
)
"""
Detailed state. Sets before :attr:`state`. Bind to :attr:`state` instead
of :attr:`status`. Available options are: `'closed'`,
`'opening_with_swipe'`, `'opening_with_animation'`, `'opened'`,
`'closing_with_swipe'`, `'closing_with_animation'`.
:attr:`status` is a :class:`~kivy.properties.OptionProperty`
and defaults to `'closed'`.
"""
open_progress = NumericProperty(0.0)
"""
Percent of visible part of side panel. The percent is specified as a
floating point number in the range 0-1. 0.0 if panel is closed and 1.0 if
panel is opened.
:attr:`open_progress` is a :class:`~kivy.properties.NumericProperty`
and defaults to `0.0`.
"""
enable_swiping = BooleanProperty(True)
"""
Allow to open or close navigation drawer with swipe. It automatically
sets to False for "standard" type.
:attr:`enable_swiping` is a :class:`~kivy.properties.BooleanProperty`
and defaults to `True`.
"""
swipe_distance = NumericProperty(10)
"""
The distance of the swipe with which the movement of navigation drawer
begins.
:attr:`swipe_distance` is a :class:`~kivy.properties.NumericProperty`
and defaults to `10`.
"""
swipe_edge_width = NumericProperty(20)
"""
The size of the area in px inside which should start swipe to drag
navigation drawer.
:attr:`swipe_edge_width` is a :class:`~kivy.properties.NumericProperty`
and defaults to `20`.
"""
def _get_scrim_alpha(self):
_scrim_alpha = 0
if self.type == "modal":
_scrim_alpha = self._scrim_alpha_transition(self.open_progress)
if (
isinstance(self.parent, MDNavigationLayout)
and self.parent._scrim_color
):
self.parent._scrim_color.rgba = self.scrim_color[:3] + [
self.scrim_color[3] * _scrim_alpha
]
return _scrim_alpha
_scrim_alpha = AliasProperty(
_get_scrim_alpha,
None,
bind=("_scrim_alpha_transition", "open_progress", "scrim_color"),
)
"""
Multiplier for alpha channel of :attr:`scrim_color`. For internal
usage only.
"""
scrim_alpha_transition = StringProperty("linear")
"""
The name of the animation transition type to use for changing
:attr:`scrim_alpha`.
:attr:`scrim_alpha_transition` is a :class:`~kivy.properties.StringProperty`
and defaults to `'linear'`.
"""
def _get_scrim_alpha_transition(self):
return getattr(AnimationTransition, self.scrim_alpha_transition)
_scrim_alpha_transition = AliasProperty(
_get_scrim_alpha_transition,
None,
bind=("scrim_alpha_transition",),
cache=True,
)
opening_transition = StringProperty("out_cubic")
"""
The name of the animation transition type to use when animating to
the :attr:`state` `'open'`.
:attr:`opening_transition` is a :class:`~kivy.properties.StringProperty`
and defaults to `'out_cubic'`.
"""
opening_time = NumericProperty(0.2)
"""
The time taken for the panel to slide to the :attr:`state` `'open'`.
:attr:`opening_time` is a :class:`~kivy.properties.NumericProperty`
and defaults to `0.2`.
"""
closing_transition = StringProperty("out_sine")
"""The name of the animation transition type to use when animating to
the :attr:`state` 'close'.
:attr:`closing_transition` is a :class:`~kivy.properties.StringProperty`
and defaults to `'out_sine'`.
"""
closing_time = NumericProperty(0.2)
"""
The time taken for the panel to slide to the :attr:`state` `'close'`.
:attr:`closing_time` is a :class:`~kivy.properties.NumericProperty`
and defaults to `0.2`.
"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.bind(
open_progress=self.update_status,
status=self.update_status,
state=self.update_status,
)
Window.bind(on_keyboard=self._handle_keyboard)
def set_state(self, new_state="toggle", animation=True) -> None:
"""
Change state of the side panel.
New_state can be one of `"toggle"`, `"open"` or `"close"`.
"""
if new_state == "toggle":
new_state = "close" if self.state == "open" else "open"
if new_state == "open":
Animation.cancel_all(self, "open_progress")
self.status = "opening_with_animation"
if animation:
Animation(
open_progress=1.0,
d=self.opening_time * (1 - self.open_progress),
t=self.opening_transition,
).start(self)
else:
self.open_progress = 1
else: # "close"
Animation.cancel_all(self, "open_progress")
self.status = "closing_with_animation"
if animation:
Animation(
open_progress=0.0,
d=self.closing_time * self.open_progress,
t=self.closing_transition,
).start(self)
else:
self.open_progress = 0
def update_status(self, *_) -> None:
status = self.status
if status == "closed":
self.state = "close"
elif status == "opened":
self.state = "open"
elif self.open_progress == 1 and status == "opening_with_animation":
self.status = "opened"
self.state = "open"
elif self.open_progress == 0 and status == "closing_with_animation":
self.status = "closed"
self.state = "close"
elif status in (
"opening_with_swipe",
"opening_with_animation",
"closing_with_swipe",
"closing_with_animation",
):
pass
if self.status == "closed":
self.opacity = 0
else:
self.opacity = 1
def get_dist_from_side(self, x: float) -> float:
if self.anchor == "left":
return 0 if x < 0 else x
return 0 if x > Window.width else Window.width - x
def on_touch_down(self, touch):
if self.status == "closed":
return False
elif self.status == "opened":
for child in self.children[:]:
if child.dispatch("on_touch_down", touch):
return True
if self.type == "standard" and not self.collide_point(
touch.ox, touch.oy
):
return False
return True
def on_touch_move(self, touch):
if self.enable_swiping:
if self.status == "closed":
if (
self.get_dist_from_side(touch.ox) <= self.swipe_edge_width
and abs(touch.x - touch.ox) > self.swipe_distance
):
self.status = "opening_with_swipe"
elif self.status == "opened":
if abs(touch.x - touch.ox) > self.swipe_distance:
self.status = "closing_with_swipe"
if self.status in ("opening_with_swipe", "closing_with_swipe"):
self.open_progress = max(
min(
self.open_progress
+ (touch.dx if self.anchor == "left" else -touch.dx)
/ self.width,
1,
),
0,
)
return True
return super().on_touch_move(touch)
def on_touch_up(self, touch):
if self.status == "opening_with_swipe":
if self.open_progress > 0.5:
self.set_state("open", animation=True)
else:
self.set_state("close", animation=True)
elif self.status == "closing_with_swipe":
if self.open_progress < 0.5:
self.set_state("close", animation=True)
else:
self.set_state("open", animation=True)
elif self.status == "opened":
if self.close_on_click and not self.collide_point(
touch.ox, touch.oy
):
self.set_state("close", animation=True)
elif self.type == "standard" and not self.collide_point(
touch.ox, touch.oy
):
return False
elif self.status == "closed":
return False
return True
def on_radius(self, instance_navigation_drawer, radius_value: list) -> None:
self._radius = radius_value
def on_type(self, instance_navigation_drawer, drawer_type: str) -> None:
if self.type == "standard":
self.enable_swiping = False
self.close_on_click = False
else:
self.enable_swiping = True
self.close_on_click = True
def _handle_keyboard(self, window, key, *largs):
if key == 27 and self.status == "opened" and self.close_on_click:
self.set_state("close")
return True
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