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* OpenOffice.org - a multi-platform office productivity suite
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
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package org.openoffice.java.accessibility;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleText;
import com.sun.star.uno.*;
import com.sun.star.accessibility.*;
/**
*/
public class Paragraph extends Container implements javax.accessibility.Accessible {
protected Paragraph(XAccessible xAccessible, XAccessibleContext xAccessibleContext) {
super(javax.accessibility.AccessibleRole.TEXT, xAccessible, xAccessibleContext);
}
protected class AccessibleParagraphListener extends AccessibleContainerListener {
protected AccessibleParagraphListener() {
super();
}
protected void setComponentState(short state, boolean enable) {
switch (state) {
case AccessibleStateType.EDITABLE:
fireStatePropertyChange(javax.accessibility.AccessibleState.EDITABLE, enable);
break;
case AccessibleStateType.MULTI_LINE:
fireStatePropertyChange(javax.accessibility.AccessibleState.MULTI_LINE, enable);
break;
case AccessibleStateType.SINGLE_LINE:
break;
default:
super.setComponentState(state, enable);
break;
}
}
protected void handleVisibleDataChanged() {
if (Paragraph.this.isFocusOwner()) {
AccessibleContext ac = accessibleContext;
if (ac != null) {
AccessibleText at = ac.getAccessibleText();
if (at != null) {
int pos = at.getCaretPosition();
// Simulating a caret event here should help at tools
// that re not aware of the paragraph approach of OOo.
firePropertyChange(ac.ACCESSIBLE_CARET_PROPERTY,
new Integer(-1), new Integer(pos));
}
}
}
}
/** Called by OpenOffice process to notify property changes */
public void notifyEvent(AccessibleEventObject event) {
switch (event.EventId) {
case AccessibleEventId.CARET_CHANGED:
firePropertyChange(accessibleContext.ACCESSIBLE_CARET_PROPERTY,
Component.toNumber(event.OldValue),
Component.toNumber(event.NewValue));
break;
case AccessibleEventId.VISIBLE_DATA_CHANGED:
case AccessibleEventId.BOUNDRECT_CHANGED:
// Whenever a paragraph gets inserted above the currently
// focused one, this is the only event that will occur for.
handleVisibleDataChanged();
default:
super.notifyEvent(event);
break;
}
}
}
protected XAccessibleEventListener createEventListener() {
return new AccessibleParagraphListener();
}
/** Creates the AccessibleContext associated with this object */
public javax.accessibility.AccessibleContext createAccessibleContext() {
return new AccessibleParagraph();
}
protected class AccessibleParagraph extends AccessibleContainer {
protected AccessibleParagraph() {
// Don't do the queryInterface on XAccessibleText already ..
super(false);
/* Since getAccessibleText() is heavily used by the java access
* bridge for gnome and the gnome at-tools, we do a query interface
* here and remember the result.
*/
accessibleText = AccessibleHypertextImpl.get(unoAccessibleContext);
}
/*
* AccessibleContext
*/
/** Gets the role of this object */
public javax.accessibility.AccessibleRole getAccessibleRole() {
return javax.accessibility.AccessibleRole.TEXT;
}
/** Gets the AccessibleEditableText associated with this object presenting text on the display */
public javax.accessibility.AccessibleEditableText getAccessibleEditableText() {
if (disposed)
return null;
try {
XAccessibleEditableText unoAccessibleText = (XAccessibleEditableText)
UnoRuntime.queryInterface(XAccessibleEditableText.class,
unoAccessibleComponent);
if (unoAccessibleText != null) {
return new AccessibleEditableTextImpl(unoAccessibleText);
} else {
return null;
}
} catch (com.sun.star.uno.RuntimeException e) {
return null;
}
}
/** Gets the AccessibleAction associated with this object that has a graphical representation */
public javax.accessibility.AccessibleAction getAccessibleAction() {
try {
XAccessibleAction unoAccessibleAction = (XAccessibleAction)
UnoRuntime.queryInterface(XAccessibleAction.class, unoAccessibleComponent);
return (unoAccessibleAction != null) ?
new AccessibleActionImpl(unoAccessibleAction) : null;
} catch (com.sun.star.uno.RuntimeException e) {
return null;
}
}
/** Returns the relation set of this object */
public javax.accessibility.AccessibleRelationSet getAccessibleRelationSet() {
try {
XAccessibleRelationSet unoAccessibleRelationSet =
unoAccessible.getAccessibleContext().getAccessibleRelationSet();
if (unoAccessibleRelationSet == null) {
return super.getAccessibleRelationSet();
}
javax.accessibility.AccessibleRelationSet relationSet = new javax.accessibility.AccessibleRelationSet();
int count = unoAccessibleRelationSet.getRelationCount();
for (int i = 0; i < count; i++) {
AccessibleRelation unoAccessibleRelation = unoAccessibleRelationSet.getRelation(i);
switch (unoAccessibleRelation.RelationType) {
case AccessibleRelationType.CONTROLLED_BY:
relationSet.add(new javax.accessibility.AccessibleRelation(
javax.accessibility.AccessibleRelation.CONTROLLED_BY,
getAccessibleComponents(unoAccessibleRelation.TargetSet)));
break;
case AccessibleRelationType.CONTROLLER_FOR:
relationSet.add(new javax.accessibility.AccessibleRelation(
javax.accessibility.AccessibleRelation.CONTROLLER_FOR,
getAccessibleComponents(unoAccessibleRelation.TargetSet)));
break;
case AccessibleRelationType.LABELED_BY:
relationSet.add(new javax.accessibility.AccessibleRelation(
javax.accessibility.AccessibleRelation.LABELED_BY,
getAccessibleComponents(unoAccessibleRelation.TargetSet)));
break;
case AccessibleRelationType.MEMBER_OF:
relationSet.add(new javax.accessibility.AccessibleRelation(
javax.accessibility.AccessibleRelation.MEMBER_OF,
getAccessibleComponents(unoAccessibleRelation.TargetSet)));
break;
case AccessibleRelationType.CONTENT_FLOWS_TO:
relationSet.add(new javax.accessibility.AccessibleRelation(
"flowsTo",
getAccessibleComponents(unoAccessibleRelation.TargetSet)));
break;
case AccessibleRelationType.CONTENT_FLOWS_FROM:
relationSet.add(new javax.accessibility.AccessibleRelation(
"flowsFrom",
getAccessibleComponents(unoAccessibleRelation.TargetSet)));
break;
default:
break;
}
}
return relationSet;
} catch (com.sun.star.lang.IndexOutOfBoundsException e) {
return super.getAccessibleRelationSet();
} catch (com.sun.star.uno.RuntimeException e) {
return super.getAccessibleRelationSet();
}
}
}
}