morph::ui::EmptyStateWidget Class Reference

What a region shows when it has nothing to show. More...

#include <backend.hpp>

Inheritance diagram for morph::ui::EmptyStateWidget:

Public Member Functions
virtual void	setTitle (std::string_view title)=0
	Replaces the title.
virtual void	setText (std::string_view text)=0
	Replaces the explanation.
virtual void	setIcon (std::string_view icon)=0
	Sets the icon; called once.
virtual void	setActionLabel (std::string_view label)=0
	Replaces the action button's caption.
virtual void	setOnAction (Action onAction)=0
	Sets what activating the action button calls.
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

What a region shows when it has nothing to show.

Definition at line 674 of file backend.hpp.

Member Function Documentation

setTitle()

virtual void morph::ui::EmptyStateWidget::setTitle ( std::string_view title )

pure virtual

Replaces the title.

Parameters

title

The title, UTF-8.

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

setText()

virtual void morph::ui::EmptyStateWidget::setText ( std::string_view text )

pure virtual

Replaces the explanation.

Parameters

text	The explanation, UTF-8.

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

setIcon()

virtual void morph::ui::EmptyStateWidget::setIcon ( std::string_view icon )

pure virtual

Sets the icon; called once.

Parameters

icon	The name of an icon in the theme's icon map; empty shows none.

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

setActionLabel()

virtual void morph::ui::EmptyStateWidget::setActionLabel ( std::string_view label )

pure virtual

Replaces the action button's caption.

Parameters

label

The caption, UTF-8; empty shows no button.

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

setOnAction()

virtual void morph::ui::EmptyStateWidget::setOnAction ( Action onAction )

pure virtual

Sets what activating the action button calls.

Parameters

onAction

The handler; empty does nothing.

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

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

• morph/ui/backend.hpp