Toga APIs by platform

Key

○	Partly supported: functionality or testing is incomplete
●	Fully supported

Core Components

Component	macOS	GTK	Windows	iOS	Android	Web
App	○	○	○	○	○	○
Window	○	○	○	○	○	○
MainWindow	○	○	○	○	○	○

General Widgets

Component	macOS	GTK	Windows	iOS	Android	Web
ActivityIndicator	●	●
Button	●	●	●	●	●	○
Canvas	○	○	○	○
DatePicker			○		○
DetailedList	○	○		○	○
Divider	●	●	●
ImageView	○	○	○	○	○
Label	●	●	●	●	●	○
MultilineTextInput	●	●	●	●	●
NumberInput	●	●	●	●	●
PasswordInput	●	●	●	●	●
ProgressBar	●	●	●	●	●	○
Selection	○	○	○	○	○
Slider	●	●	●	●	●
Switch	●	●	●	●	●	○
Table	○	○	○		○
TextInput	●	●	●	●	●	○
TimePicker			○		○
Tree	○	○	○
WebView	○	○	○	○	○
Widget	●	●	●	●	●	○

Layout Widgets

Component	macOS	GTK	Windows	iOS	Android	Web
Box	●	●	●	●	●	○
ScrollContainer	○	○	○	○	○
SplitContainer	○	○	○
OptionContainer	○	○	○

Resources

Component	macOS	GTK	Windows	iOS	Android	Web
Font	○	○	○	○	○
Command	○	○	○		○
Group	○	○	○	○	○
Icon	○	○	○	○	○
Image	○	○	○	○	○
Validators	●	●	●	●	●