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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: TextComponent.java,v $
 * $Revision: 1.10 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

package org.openoffice.java.accessibility;

import com.sun.star.uno.UnoRuntime;
import com.sun.star.accessibility.*;

/**
 */
public class TextComponent extends Component implements javax.accessibility.Accessible {

    protected TextComponent(XAccessible xAccessible, XAccessibleContext xAccessibleContext) {
        super(xAccessible, xAccessibleContext);
    }

    protected class AccessibleTextComponentListener extends AccessibleUNOComponentListener {

        protected AccessibleTextComponentListener() {
            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 XAccessibleEventListener createEventListener() {
        return new AccessibleTextComponentListener();
    }

    /** Creates the AccessibleContext associated with this object */
    public javax.accessibility.AccessibleContext createAccessibleContext() {
        return new AccessibleTextComponent();
    }

    protected class AccessibleTextComponent extends AccessibleUNOComponent {

        /**
        * Though the class is abstract, this should be called by all sub-classes
        */
        protected AccessibleTextComponent() {
            super();
        }

        /*
        * AccessibleContext
        */

        /** Gets the role of this object */
        public javax.accessibility.AccessibleRole getAccessibleRole() {
            return javax.accessibility.AccessibleRole.TEXT;
        }

        /** Gets the AccessibleText associated with this object presenting text on the display */
        public javax.accessibility.AccessibleText getAccessibleText() {

            if (disposed)
                return null;

            try {
                XAccessibleText unoAccessibleText = (XAccessibleText)
                    UnoRuntime.queryInterface(XAccessibleText.class,unoAccessibleComponent);
                if (unoAccessibleText != null) {
                    return new AccessibleTextImpl(unoAccessibleText);
                } else {
                    return null;
                }
            } catch (com.sun.star.uno.RuntimeException e) {
                return null;
            }
        }

        /** Gets the AccessibleEditableText associated with this object presenting text on the display */
        public javax.accessibility.AccessibleEditableText getAccessibleEditableText() {
            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();
            }
        }
    }
}