Package io.jmix.ui

Interface Screens

All Known Implementing Classes:

ScreensImpl

public interface Screens

Interface defining methods for creation and displaying of UI screens.

See Also:

• ScreenBuilders

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	Screens.OpenedScreens	Provides information about opened screens, does not store state.
static interface	Screens.WindowStack	Represents single tab / window stack in AppWorkArea.

Field Summary

Fields

Modifier and Type	Field	Description
static final CloseAction	NAVIGATION_CLOSE_ACTION	Constant that is passed to Screen.close(CloseAction) when the screen is closed by screens manager.
static final String	NAVIGATION_CLOSE_ACTION_ID

Method Summary

Modifier and Type	Method	Description
default <T extends Screen> T	create(Class<T> screenClass)	Creates a screen by its controller class.
default <T extends Screen> T	create(Class<T> screenClass, OpenMode openMode)	Creates a screen by its controller class.
<T extends Screen> T	create(Class<T> screenClass, OpenMode openMode, ScreenOptions options)	Creates a screen by its controller class.
default Screen	create(String screenId, OpenMode openMode)	Creates a screen by its screen id.
Screen	create(String screenId, OpenMode openMode, ScreenOptions options)	Creates a screen by its screen id.
AppWorkArea	getConfiguredWorkAreaOrNull()
Screens.OpenedScreens	getOpenedScreens()
boolean	hasUnsavedChanges()	Check if there are screens that have unsaved changes.
void	remove(Screen screen)	Removes screen from UI and releases all the resources of screen.
void	removeAll()	Removes all child screens (screens of work area and dialog screens) from the root screen and releases their resources.
OperationResult	show(Screen screen)	Displays the given screen according to its OpenMode.
OperationResult	showFromNavigation(Screen screen)	Displays the given screen taking into account already opened screens and multipleOpen option.

Field Details

NAVIGATION_CLOSE_ACTION_ID

static final String NAVIGATION_CLOSE_ACTION_ID

See Also:

• Constant Field Values

NAVIGATION_CLOSE_ACTION

static final CloseAction NAVIGATION_CLOSE_ACTION

Constant that is passed to Screen.close(CloseAction) when the screen is closed by screens manager.

Method Details

create

default <T extends Screen> T create(Class<T> screenClass)

Creates a screen by its controller class.

By default, the screen will be opened in the current tab of the main window (OpenMode.THIS_TAB).

Parameters:

screenClass - screen controller class

create

default <T extends Screen> T create(Class<T> screenClass,
 OpenMode openMode)

Creates a screen by its controller class.

Parameters:

screenClass - screen controller class

openMode - how the screen should be opened

create

default Screen create(String screenId,
 OpenMode openMode)

Creates a screen by its screen id.

Parameters:

screenId - screen id

openMode - how the screen should be opened

create

<T extends Screen> T create(Class<T> screenClass,
 OpenMode openMode,
 ScreenOptions options)

Creates a screen by its controller class.

Parameters:

screenClass - screen controller class

openMode - how the screen should be opened

options - screen parameters

create

Screen create(String screenId,
 OpenMode openMode,
 ScreenOptions options)

Creates a screen by its screen id.

Parameters:

screenId - screen id

openMode - how the screen should be opened

options - screen parameters

show

OperationResult show(Screen screen)

Displays the given screen according to its OpenMode.

Parameters:

screen - screen

Returns:

OperationResult.success() if screen is shown or otherwise OperationResult.fail()

showFromNavigation

OperationResult showFromNavigation(Screen screen)

Displays the given screen taking into account already opened screens and multipleOpen option.

Parameters:

screen - screen

Returns:

operation result

remove

void remove(Screen screen)

Removes screen from UI and releases all the resources of screen.

Parameters:

screen - screen

removeAll

void removeAll()

Removes all child screens (screens of work area and dialog screens) from the root screen and releases their resources.

hasUnsavedChanges

boolean hasUnsavedChanges()

Check if there are screens that have unsaved changes.

Returns:

true if there are screens with unsaved changes

getOpenedScreens

Screens.OpenedScreens getOpenedScreens()

Returns:

object that provides information about opened screens

getConfiguredWorkAreaOrNull

@Nullable
AppWorkArea getConfiguredWorkAreaOrNull()