Class AccessibilityManager

java.lang.Object

com.codename1.ui.accessibility.AccessibilityManager

public final class AccessibilityManager
extends Object

Builds, caches, diffs, and dispatches actions for the portable semantic tree.

The tree is always constructed on the Codename One EDT. Native ports read the last immutable snapshot and post actions through performAction(long, String, Object), so native accessibility threads never synchronously enter application code.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CHANGE_ACTIONS
static final int	CHANGE_ALL
static final int	CHANGE_BOUNDS
static final int	CHANGE_CONTENT
static final int	CHANGE_FOCUS
static final int	CHANGE_LIVE_REGION
static final int	CHANGE_PANE
static final int	CHANGE_STATE
static final int	CHANGE_STRUCTURE
static final int	CHANGE_VALUE

Method Summary

Modifier and Type	Method	Description
AccessibilityTreeSnapshot	getCurrentSnapshot()
static AccessibilityManager	getInstance()
int	getPendingChanges()
AccessibilityTreeSnapshot	getSnapshot(Form form)
void	invalidate(Component component, int changeType)
void	invalidateAll()
boolean	performAction(long nodeId, String actionId, Object argument)

Methods inherited from class Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

CHANGE_STRUCTURE

public static final int CHANGE_STRUCTURE

See Also:

• Constant Field Values

CHANGE_CONTENT

public static final int CHANGE_CONTENT

See Also:

• Constant Field Values

CHANGE_STATE

public static final int CHANGE_STATE

See Also:

• Constant Field Values

CHANGE_VALUE

public static final int CHANGE_VALUE

See Also:

• Constant Field Values

CHANGE_BOUNDS

public static final int CHANGE_BOUNDS

See Also:

• Constant Field Values

CHANGE_FOCUS

public static final int CHANGE_FOCUS

See Also:

• Constant Field Values

CHANGE_ACTIONS

public static final int CHANGE_ACTIONS

See Also:

• Constant Field Values

CHANGE_LIVE_REGION

public static final int CHANGE_LIVE_REGION

See Also:

• Constant Field Values

CHANGE_PANE

public static final int CHANGE_PANE

See Also:

• Constant Field Values

CHANGE_ALL

public static final int CHANGE_ALL

See Also:

• Constant Field Values

Method Details

getInstance

public static AccessibilityManager getInstance()

invalidate

public void invalidate(Component component,
 int changeType)

invalidateAll

public void invalidateAll()

getCurrentSnapshot

public AccessibilityTreeSnapshot getCurrentSnapshot()

getSnapshot

public AccessibilityTreeSnapshot getSnapshot(Form form)

getPendingChanges

public int getPendingChanges()

performAction

public boolean performAction(long nodeId,
 String actionId,
 Object argument)