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https://github.com/freedombox/FreedomBox.git
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016b6d0c29
Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org> Reviewed-by: Veiko Aasa <veiko17@disroot.org>
128 lines
4.9 KiB
Python
128 lines
4.9 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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from typing import ClassVar
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from django.urls import reverse_lazy
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from django.utils.translation import gettext_lazy as _
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from plinth import app
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class Menu(app.FollowerComponent):
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"""Component to manage a single menu item."""
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_all_menus: ClassVar[set['Menu']] = set()
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def __init__(self, component_id, name=None, short_description=None,
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icon=None, url_name=None, url_args=None, url_kwargs=None,
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parent_url_name=None, order=50, advanced=False):
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"""Initialize a new menu item with basic properties.
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name is the label of the menu item.
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short_description is an optional description shown on the menu item.
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icon is the icon to be displayed for the menu item. Icon can be the
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name of a glyphicon from the Fork Awesome font's icon set:
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https://forkawesome.github.io/Fork-Awesome/icons/. In this case, the
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icon name starts with the string 'fa-'. Alternatively, the icon can
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also be a file under the directory plinth/modules/<app>/static/icons/,
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provided without an extension. SVG icons are preferred. Currently, both
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PNG and SVG icons with the same name are used. For example, if the
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value of icon is 'myicon' and app_id in App class is 'myapp', then two
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icons files plinth/modules/myapp/static/icons/myicon.svg and
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plinth/modules/myapp/static/icons/myicon.png are used in the interface.
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url_name is the name of url location that will be activated when the
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menu item is selected. This is not optional. url_args and url_kwargs
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are sent to reverse() when resolving url from url_name.
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parent_url_name optionally specifies the menu item under which this
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menu item should become a child.
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order is the numerical rank of this item within the menu. Lower order
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items appear closest to the top/left of the menu. By convention, we use
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the spectrum between 0 and 100 to rank orders, but feel free to
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disregard that. If you need more granularity, don't bother renumbering
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things. Feel free to use fractional orders.
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advanced decides whether to show the menu item only in advanced mode.
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"""
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super().__init__(component_id)
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if not url_name:
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raise ValueError('Valid url_name is expected')
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url = reverse_lazy(url_name, args=url_args, kwargs=url_kwargs)
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self.name = name
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self.short_description = short_description
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self.icon = icon
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self.url = url
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self.order = order
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self.advanced = advanced
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self.url_name = url_name
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self.url_args = url_args
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self.url_kwargs = url_kwargs
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self.parent_url_name = parent_url_name
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# Add self to global list of menu items.
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self._all_menus.add(self)
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@property
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def items(self):
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"""Return the list of children for this menu item."""
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return [
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item for item in self._all_menus
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if item.parent_url_name == self.url_name
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]
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def sorted_items(self):
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"""Return menu items in sorted order according to current locale."""
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return sorted(self.items, key=lambda x: (x.order, x.name.lower()))
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def active_item(self, request):
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"""Return the first active item (e.g. submenu) that is found."""
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for item in self.items:
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if request.path.startswith(str(item.url)):
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return item
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return None
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@staticmethod
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def get_with_url_name(url_name: str) -> 'Menu':
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"""Return a menu item with given URL name.
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Raise LookupError of the request item is not found.
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"""
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for item in Menu._all_menus:
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if item.url_name == url_name:
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return item
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raise LookupError
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main_menu = None
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def init():
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"""Create main menu and other essential menus."""
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global main_menu
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main_menu = Menu('menu-index', name=_('Home'), url_name='index')
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Menu('menu-apps', name=_('Apps'), icon='fa-download', url_name='apps',
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parent_url_name='index')
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Menu('menu-system', name=_('System'), icon='fa-cog', url_name='system',
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parent_url_name='index')
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Menu('menu-system-visibility', name=_('Visibility'), icon='fa-cog',
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url_name='system:visibility', parent_url_name='system', order=10)
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Menu('menu-system-data', name=_('Data'), icon='fa-cog',
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url_name='system:data', parent_url_name='system', order=20)
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Menu('menu-system-system', name=_('System'), icon='fa-cog',
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url_name='system:system', parent_url_name='system', order=30)
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Menu('menu-system-security', name=_('Security'), icon='fa-cog',
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url_name='system:security', parent_url_name='system', order=40)
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Menu('menu-system-administration', name=_('Administration'), icon='fa-cog',
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url_name='system:administration', parent_url_name='system', order=50)
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