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Sideband/sbapp/kivymd/uix/dialog/dialog.py

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"""
Components/Dialog
=================
.. seealso::
`Material Design spec, Dialogs <https://material.io/components/dialogs>`_
.. rubric:: Dialogs inform users about a task and can contain critical
information, require decisions, or involve multiple tasks.
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/dialogs.png
:align: center
Usage
-----
.. code-block:: python
from kivy.lang import Builder
from kivymd.app import MDApp
from kivymd.uix.button import MDFlatButton
from kivymd.uix.dialog import MDDialog
KV = '''
MDFloatLayout:
MDFlatButton:
text: "ALERT DIALOG"
pos_hint: {'center_x': .5, 'center_y': .5}
on_release: app.show_alert_dialog()
'''
class Example(MDApp):
dialog = None
def build(self):
return Builder.load_string(KV)
def show_alert_dialog(self):
if not self.dialog:
self.dialog = MDDialog(
text="Discard draft?",
buttons=[
MDFlatButton(
text="CANCEL",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
MDFlatButton(
text="DISCARD",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
],
)
self.dialog.open()
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/alert-dialog.png
:align: center
"""
__all__ = ("MDDialog", "BaseDialog")
import os
from kivy.clock import Clock
from kivy.core.window import Window
from kivy.lang import Builder
from kivy.metrics import dp
from kivy.properties import (
ColorProperty,
ListProperty,
NumericProperty,
ObjectProperty,
OptionProperty,
StringProperty,
)
from kivy.uix.modalview import ModalView
from kivymd import uix_path
from kivymd.material_resources import DEVICE_TYPE
from kivymd.theming import ThemableBehavior
from kivymd.uix.button import BaseButton
from kivymd.uix.card import MDSeparator
from kivymd.uix.list import BaseListItem
with open(
os.path.join(uix_path, "dialog", "dialog.kv"), encoding="utf-8"
) as kv_file:
Builder.load_string(kv_file.read())
class BaseDialog(ThemableBehavior, ModalView):
radius = ListProperty([dp(7), dp(7), dp(7), dp(7)])
"""
Dialog corners rounding value.
.. code-block:: python
[...]
self.dialog = MDDialog(
text="Oops! Something seems to have gone wrong!",
radius=[20, 7, 20, 7],
)
[...]
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/dialog-radius.png
:align: center
:attr:`radius` is an :class:`~kivy.properties.ListProperty`
and defaults to `[7, 7, 7, 7]`.
"""
_scale_x = NumericProperty(1)
_scale_y = NumericProperty(1)
class MDDialog(BaseDialog):
title = StringProperty()
"""
Title dialog.
.. code-block:: python
[...]
self.dialog = MDDialog(
title="Reset settings?",
buttons=[
MDFlatButton(
text="CANCEL",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
MDFlatButton(
text="ACCEPT",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
],
)
[...]
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/dialog-title.png
:align: center
:attr:`title` is an :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
text = StringProperty()
"""
Text dialog.
.. code-block:: python
[...]
self.dialog = MDDialog(
title="Reset settings?",
text="This will reset your device to its default factory settings.",
buttons=[
MDFlatButton(
text="CANCEL",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
MDFlatButton(
text="ACCEPT",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
],
)
[...]
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/dialog-text.png
:align: center
:attr:`text` is an :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
buttons = ListProperty()
"""
List of button objects for dialog.
Objects must be inherited from :class:`~kivymd.uix.button.BaseButton` class.
.. code-block:: python
[...]
self.dialog = MDDialog(
text="Discard draft?",
buttons=[
MDFlatButton(text="CANCEL"), MDRaisedButton(text="DISCARD"),
],
)
[...]
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/dialog-buttons.png
:align: center
:attr:`buttons` is an :class:`~kivy.properties.ListProperty`
and defaults to `[]`.
"""
items = ListProperty()
"""
List of items objects for dialog.
Objects must be inherited from :class:`~kivymd.uix.list.BaseListItem` class.
With type 'simple'
~~~~~~~~~~~~~~~~~~
.. code-block:: python
from kivy.lang import Builder
from kivy.properties import StringProperty
from kivymd.app import MDApp
from kivymd.uix.dialog import MDDialog
from kivymd.uix.list import OneLineAvatarListItem
KV = '''
<Item>
ImageLeftWidget:
source: root.source
MDFloatLayout:
MDFlatButton:
text: "ALERT DIALOG"
pos_hint: {'center_x': .5, 'center_y': .5}
on_release: app.show_simple_dialog()
'''
class Item(OneLineAvatarListItem):
divider = None
source = StringProperty()
class Example(MDApp):
dialog = None
def build(self):
return Builder.load_string(KV)
def show_simple_dialog(self):
if not self.dialog:
self.dialog = MDDialog(
title="Set backup account",
type="simple",
items=[
Item(text="user01@gmail.com", source="user-1.png"),
Item(text="user02@gmail.com", source="user-2.png"),
Item(text="Add account", source="add-icon.png"),
],
)
self.dialog.open()
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/dialog-items.png
:align: center
With type 'confirmation'
~~~~~~~~~~~~~~~~~~~~~~~~
.. code-block:: python
from kivy.lang import Builder
from kivymd.app import MDApp
from kivymd.uix.button import MDFlatButton
from kivymd.uix.dialog import MDDialog
from kivymd.uix.list import OneLineAvatarIconListItem
KV = '''
<ItemConfirm>
on_release: root.set_icon(check)
CheckboxLeftWidget:
id: check
group: "check"
MDFloatLayout:
MDFlatButton:
text: "ALERT DIALOG"
pos_hint: {'center_x': .5, 'center_y': .5}
on_release: app.show_confirmation_dialog()
'''
class ItemConfirm(OneLineAvatarIconListItem):
divider = None
def set_icon(self, instance_check):
instance_check.active = True
check_list = instance_check.get_widgets(instance_check.group)
for check in check_list:
if check != instance_check:
check.active = False
class Example(MDApp):
dialog = None
def build(self):
return Builder.load_string(KV)
def show_confirmation_dialog(self):
if not self.dialog:
self.dialog = MDDialog(
title="Phone ringtone",
type="confirmation",
items=[
ItemConfirm(text="Callisto"),
ItemConfirm(text="Luna"),
ItemConfirm(text="Night"),
ItemConfirm(text="Solo"),
ItemConfirm(text="Phobos"),
ItemConfirm(text="Diamond"),
ItemConfirm(text="Sirena"),
ItemConfirm(text="Red music"),
ItemConfirm(text="Allergio"),
ItemConfirm(text="Magic"),
ItemConfirm(text="Tic-tac"),
],
buttons=[
MDFlatButton(
text="CANCEL",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
MDFlatButton(
text="OK",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
],
)
self.dialog.open()
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/dialog-confirmation.png
:align: center
:attr:`items` is an :class:`~kivy.properties.ListProperty`
and defaults to `[]`.
"""
width_offset = NumericProperty(dp(48))
"""
Dialog offset from device width.
:attr:`width_offset` is an :class:`~kivy.properties.NumericProperty`
and defaults to `dp(48)`.
"""
type = OptionProperty(
"alert", options=["alert", "simple", "confirmation", "custom"]
)
"""
Dialog type.
Available option are `'alert'`, `'simple'`, `'confirmation'`, `'custom'`.
:attr:`type` is an :class:`~kivy.properties.OptionProperty`
and defaults to `'alert'`.
"""
content_cls = ObjectProperty()
"""
Custom content class.
.. code-block:: python
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
from kivymd.app import MDApp
from kivymd.uix.button import MDFlatButton
from kivymd.uix.dialog import MDDialog
KV = '''
<Content>
orientation: "vertical"
spacing: "12dp"
size_hint_y: None
height: "120dp"
MDTextField:
hint_text: "City"
MDTextField:
hint_text: "Street"
MDFloatLayout:
MDFlatButton:
text: "ALERT DIALOG"
pos_hint: {'center_x': .5, 'center_y': .5}
on_release: app.show_confirmation_dialog()
'''
class Content(BoxLayout):
pass
class Example(MDApp):
dialog = None
def build(self):
return Builder.load_string(KV)
def show_confirmation_dialog(self):
if not self.dialog:
self.dialog = MDDialog(
title="Address:",
type="custom",
content_cls=Content(),
buttons=[
MDFlatButton(
text="CANCEL",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
MDFlatButton(
text="OK",
theme_text_color="Custom",
text_color=self.theme_cls.primary_color,
),
],
)
self.dialog.open()
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/dialog-custom.png
:align: center
:attr:`content_cls` is an :class:`~kivy.properties.ObjectProperty`
and defaults to `'None'`.
"""
md_bg_color = ColorProperty(None)
"""
Background color in the format (r, g, b, a).
:attr:`md_bg_color` is an :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
_scroll_height = NumericProperty("28dp")
_spacer_top = NumericProperty("24dp")
def __init__(self, **kwargs):
super().__init__(**kwargs)
Window.bind(on_resize=self.update_width)
if self.size_hint == [1, 1] and (
DEVICE_TYPE == "desktop" or DEVICE_TYPE == "tablet"
):
self.size_hint = (None, None)
self.width = min(dp(560), Window.width - self.width_offset)
elif self.size_hint == [1, 1] and DEVICE_TYPE == "mobile":
self.size_hint = (None, None)
self.width = min(dp(280), Window.width - self.width_offset)
if not self.title:
self._spacer_top = 0
if not self.buttons:
self.ids.root_button_box.height = 0
else:
self.create_buttons()
update_height = False
if self.type in ("simple", "confirmation"):
if self.type == "confirmation":
self.ids.spacer_top_box.add_widget(MDSeparator())
self.ids.spacer_bottom_box.add_widget(MDSeparator())
self.create_items()
if self.type == "custom":
if self.content_cls:
self.ids.container.remove_widget(self.ids.scroll)
self.ids.container.remove_widget(self.ids.text)
self.ids.spacer_top_box.add_widget(self.content_cls)
self.ids.spacer_top_box.padding = (0, "24dp", "16dp", 0)
update_height = True
if self.type == "alert":
self.ids.scroll.bar_width = 0
if update_height:
Clock.schedule_once(self.update_height)
def update_width(self, *args) -> None:
self.width = max(
self.height + self.width_offset,
min(
dp(560) if DEVICE_TYPE != "mobile" else dp(280),
Window.width - self.width_offset,
),
)
def update_height(self, *args) -> None:
self._spacer_top = self.content_cls.height + dp(24)
def update_items(self, items: list) -> None:
self.ids.box_items.clear_widgets()
self.items = items
self.create_items()
def on_open(self) -> None:
# TODO: Add scrolling text.
self.height = self.ids.container.height
def get_normal_height(self) -> float:
return (
(Window.height * 80 / 100)
- self._spacer_top
- dp(52)
- self.ids.container.padding[1]
- self.ids.container.padding[-1]
- 100
)
def edit_padding_for_item(self, instance_item) -> None:
instance_item.ids._left_container.x = 0
instance_item._txt_left_pad = "56dp"
def create_items(self) -> None:
if not self.text:
self.ids.container.remove_widget(self.ids.text)
height = 0
else:
height = self.ids.text.height
for item in self.items:
if issubclass(item.__class__, BaseListItem):
height += item.height # calculate height contents
self.edit_padding_for_item(item)
self.ids.box_items.add_widget(item)
if height > Window.height:
self.ids.scroll.height = self.get_normal_height()
else:
self.ids.scroll.height = height
def create_buttons(self) -> None:
for button in self.buttons:
if issubclass(button.__class__, BaseButton):
self.ids.button_box.add_widget(button)
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