Add OptionContainer for iOS

changes/2259.feature.1.rst

@@ -0,0 +1 @@
+An OptionContainer widget was added for iOS.

changes/2259.feature.2.rst

@@ -0,0 +1 @@
+OptionContainer content can now be constructed using ``toga.OptionItem`` objects.

changes/2259.removal.rst

@@ -0,0 +1 @@
+When inserting or appending a tab to an OptionContainer, the ``enabled`` argument must now be provided as a keyword argument.

cocoa/src/toga_cocoa/widgets/optioncontainer.py

@@ -64,9 +64,9 @@ def set_bounds(self, x, y, width, height):
 
     def content_refreshed(self, container):
         container.min_width = container.content.interface.layout.min_width
-        container.min_height = container.content.interface.layout.min_width
+        container.min_height = container.content.interface.layout.min_height
 
-    def add_content(self, index, text, widget):
+    def add_content(self, index, text, widget, icon):
         # Create the container for the widget
         container = Container(on_refresh=self.content_refreshed)
         container.content = widget
@@ -117,6 +117,14 @@ def set_option_text(self, index, value):
         tabview = self.native.tabViewItemAtIndex(index)
         tabview.label = value
 
+    def set_option_icon(self, index, value):
+        # Icons aren't supported
+        pass
+
+    def get_option_icon(self, index):
+        # Icons aren't supported
+        return None
+
     def get_option_text(self, index):
         tabview = self.native.tabViewItemAtIndex(index)
         return tabview.label

cocoa/src/toga_cocoa/widgets/splitcontainer.py

@@ -72,7 +72,7 @@ def set_bounds(self, x, y, width, height):
 
     def content_refreshed(self, container):
         container.min_width = container.content.interface.layout.min_width
-        container.min_height = container.content.interface.layout.min_width
+        container.min_height = container.content.interface.layout.min_height
 
     def set_content(self, content, flex):
         # Clear any existing content

cocoa/tests_backend/widgets/optioncontainer.py

@@ -47,3 +47,7 @@ def tab_enabled(self, index):
         # property lookup mechanism. Invoke it by passing the message directly.
         item = self.native.tabViewItemAtIndex(index)
         return send_message(item, SEL("_isTabEnabled"), restype=bool, argtypes=[])
+
+    def assert_tab_icon(self, index, expected):
+        # No tab icons, so if anything is returned, that's an error
+        assert self.widget.content[index].icon is None

core/pyproject.toml

@@ -73,6 +73,8 @@ dev = [
     "pytest-freezer == 0.4.8",
     "setuptools-scm == 8.0.4",
     "tox == 4.11.4",
+    # typing-extensions needed for TypeAlias added in Py 3.10
+    "typing-extensions == 4.9.0 ; python_version < '3.10'"
 ]
 docs = [
     "furo == 2023.9.10",

core/src/toga/__init__.py

@@ -22,7 +22,7 @@
 from .widgets.label import Label
 from .widgets.multilinetextinput import MultilineTextInput
 from .widgets.numberinput import NumberInput
-from .widgets.optioncontainer import OptionContainer
+from .widgets.optioncontainer import OptionContainer, OptionItem
 from .widgets.passwordinput import PasswordInput
 from .widgets.progressbar import ProgressBar
 from .widgets.scrollcontainer import ScrollContainer
@@ -71,6 +71,7 @@
     "MultilineTextInput",
     "NumberInput",
     "OptionContainer",
+    "OptionItem",
     "PasswordInput",
     "ProgressBar",
     "ScrollContainer",

core/src/toga/app.py

@@ -8,7 +8,7 @@
 import webbrowser
 from collections.abc import Collection, Iterator, Mapping, MutableSet
 from email.message import Message
-from typing import Any, Protocol
+from typing import TYPE_CHECKING, Any, Protocol
 from warnings import warn
 
 from toga.command import Command, CommandSet
@@ -20,6 +20,9 @@
 from toga.widgets.base import Widget, WidgetRegistry
 from toga.window import Window
 
+if TYPE_CHECKING:
+    from toga.icons import IconContent
+
 # Make sure deprecation warnings are shown by default
 warnings.filterwarnings("default", category=DeprecationWarning)
 
@@ -246,7 +249,7 @@ def __init__(
         app_id: str | None = None,
         app_name: str | None = None,
         *,
-        icon: Icon | str | None = None,
+        icon: IconContent = None,
         author: str | None = None,
         version: str | None = None,
         home_page: str | None = None,
@@ -262,8 +265,8 @@ def __init__(
         :meth:`~toga.App.main_loop()` method, which will start the event loop of your
         App.
 
-        :param formal_name: The human-readable name of the app. If not provided,
-            the metadata key ``Formal-Name`` must be present.
+        :param formal_name: The human-readable name of the app. If not provided, the
+            metadata key ``Formal-Name`` must be present.
         :param app_id: The unique application identifier. This will usually be a
             reversed domain name, e.g. ``org.beeware.myapp``. If not provided, the
             metadata key ``App-ID`` must be present.
@@ -277,10 +280,10 @@ def __init__(
                For example, an ``app_id`` of ``com.example.my-app`` would yield a
                distribution name of ``my-app``.
             #. As a last resort, the name ``toga``.
-        :param icon: The :any:`Icon` for the app. If not provided, Toga will attempt to
-            load an icon from ``resources/app_name``, where ``app_name`` is defined
-            above. If no resource matching this name can be found, a warning will be
-            printed, and the app will fall back to a default icon.
+        :param icon: The :any:`icon <IconContent>` for the app. If not provided, Toga
+            will attempt to load an icon from ``resources/app_name``, where ``app_name``
+            is defined above. If no resource matching this name can be found, a warning
+            will be printed, and the app will fall back to a default icon.
         :param author: The person or organization to be credited as the author of the
             app. If not provided, the metadata key ``Author`` will be used.
         :param version: The version number of the app.  If not provided, the metadata
@@ -500,13 +503,15 @@ def id(self) -> str:
     def icon(self) -> Icon:
         """The Icon for the app.
 
+        Can be specified as any valid :any:`icon content <IconContent>`.
+
         When setting the icon, you can provide either an :any:`Icon` instance, or a
         path that will be passed to the ``Icon`` constructor.
         """
         return self._icon
 
     @icon.setter
-    def icon(self, icon_or_name: Icon | str) -> None:
+    def icon(self, icon_or_name: IconContent) -> None:
         if isinstance(icon_or_name, Icon):
             self._icon = icon_or_name
         else:
@@ -711,7 +716,7 @@ def __init__(
         app_id: str | None = None,
         app_name: str | None = None,
         *,
-        icon: str | None = None,
+        icon: IconContent = None,
         author: str | None = None,
         version: str | None = None,
         home_page: str | None = None,

core/src/toga/command.py

@@ -9,6 +9,7 @@
 
 if TYPE_CHECKING:
     from toga.app import App
+    from toga.icons import IconContent
 
 
 class Group:
@@ -166,7 +167,7 @@ def __init__(
         *,
         shortcut: str | Key | None = None,
         tooltip: str | None = None,
-        icon: str | Icon | None = None,
+        icon: IconContent = None,
         group: Group = Group.COMMANDS,
         section: int = 0,
         order: int = 0,
@@ -183,8 +184,8 @@ def __init__(
         :param text: A label for the command.
         :param shortcut: A key combination that can be used to invoke the command.
         :param tooltip: A short description of what the command will do.
-        :param icon: The icon, or icon resource, that can be used to decorate the
-            command if the platform requires.
+        :param icon: The :any:`icon content <IconContent>` that can be used to decorate
+            the command if the platform requires.
         :param group: The group to which this command belongs.
         :param section: The section where the command should appear within its group.
         :param order: The position where the command should appear within its section.
@@ -232,8 +233,7 @@ def enabled(self, value: bool):
     def icon(self) -> Icon | None:
         """The Icon for the command.
 
-        When setting the icon, you can provide either an :any:`Icon` instance, or a
-        path that will be passed to the ``Icon`` constructor.
+        Can be specified as any valid :any:`icon content <IconContent>`.
         """
         return self._icon
 

core/src/toga/icons.py

@@ -1,10 +1,20 @@
 from __future__ import annotations
 
+import sys
 from pathlib import Path
+from typing import TYPE_CHECKING
 
 import toga
 from toga.platform import get_platform_factory
 
+if TYPE_CHECKING:
+    if sys.version_info < (3, 10):
+        from typing_extensions import TypeAlias
+    else:
+        from typing import TypeAlias
+
+    IconContent: TypeAlias = str | Path | toga.Icon | None
+
 
 class cachedicon:
     def __init__(self, f):
@@ -36,6 +46,10 @@ def TOGA_ICON(cls) -> Icon:
     def DEFAULT_ICON(cls) -> Icon:
         return Icon("resources/toga", system=True)
 
+    @cachedicon
+    def OPTION_CONTAINER_DEFAULT_TAB_ICON(cls) -> Icon:
+        return Icon("resources/optioncontainer-tab", system=True)
+
     def __init__(
         self,
         path: str | Path,