morph::ui::ToastWidget Class Reference

A passive, transient message outside the normal flow: non-modal, dims nothing, and never takes keyboard focus. Auto-dismisses after a backend-chosen interval. More...

#include <backend.hpp>

Inheritance diagram for morph::ui::ToastWidget:

Public Member Functions
virtual void	show (std::string_view text, Tone tone)=0
	Shows the message, replacing any shown or dismissing, and (re)starts the dismissal interval regardless of whether the toast is already on-screen — a second call while one is showing replaces its text and tone and restarts the interval, rather than being a no-op or stacking a second message.
Public Member Functions inherited from morph::ui::Widget
	Widget (Widget const &)=delete
Widget &	operator= (Widget const &)=delete
	Widget (Widget &&)=delete
Widget &	operator= (Widget &&)=delete
virtual void	setVisible (bool visible)=0
	Shows or hides the widget and everything inside it.
virtual void	setEnabled (bool enabled)=0
	Enables or disables input on the widget and everything inside it.
virtual void	setLayout (LayoutHints const &hints)=0
	Sets the size request.
virtual void	setDragKey (std::optional< Key > const &key)=0
	Makes the widget draggable, carrying key, or not draggable.
virtual void	setDropHandler (std::function< bool(Key const &)> accepts, std::function< void(Key)> onDrop)=0
	Makes the widget a drop target.
virtual void	setAccessibleName (std::string_view name)=0
	Sets the name assistive technology reads for the widget.
virtual void	setAccessibleRole (std::string_view role)=0
	Sets the role assistive technology announces for the widget.
virtual void	setTestId (std::string_view testId)=0
	Sets the stable identifier an automated test finds the widget by.
virtual void	setTooltip (std::string_view text)=0
	Sets the text shown while the pointer rests on the widget.
virtual void	setSurface (std::string_view surface)=0
	Styles the widget and everything inside it with a named token set of the theme.
virtual void	setKeys (std::vector< std::string > const &chords, std::function< void(std::string)> onChord)=0
	Declares the keyboard chords the widget handles while focus is inside it.
virtual void	focus ()=0
	Moves keyboard focus to the widget.
virtual void	setOnHover (std::function< void()> onHover)
	Calls onHover each time the pointer comes to rest over the widget. A backend without a pointer, or one that does not report hovering, keeps the default, which never calls it: hovering is a hint, such as a prefetch, never something a widget relies on.

Detailed Description

A passive, transient message outside the normal flow: non-modal, dims nothing, and never takes keyboard focus. Auto-dismisses after a backend-chosen interval.

Definition at line 615 of file backend.hpp.

Member Function Documentation

show()

virtual void morph::ui::ToastWidget::show ( std::string_view text, Tone tone )

pure virtual

Shows the message, replacing any shown or dismissing, and (re)starts the dismissal interval regardless of whether the toast is already on-screen — a second call while one is showing replaces its text and tone and restarts the interval, rather than being a no-op or stacking a second message.

Parameters

text	The message, UTF-8.
tone	The tone, mapped to the backend's theme.

Implemented in morph::ui::testing::detail::FakeToast.

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The documentation for this class was generated from the following file:

• morph/ui/backend.hpp