com.sun.glass.ui.accessible.win.WinAccessibleSelectionProvider Maven / Gradle / Ivy

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package com.sun.glass.ui.accessible.win;

import com.sun.glass.ui.accessible.AccessibleLogger;
import com.sun.javafx.accessible.providers.SelectionProvider;
import com.sun.javafx.accessible.utils.PatternIds;

public final class WinAccessibleSelectionProvider extends WinAccessibleBasePatternProvider {

    /**
     * A class static block that initializes the JNI method IDs.
     */
    static {
        _initIDs();
    }
    
    native private static void _initIDs();
    native protected long _createAccessible(long nativeBaseProvider);
    native private void _destroyAccessible(long nativeAccessible);
    
    private long nativeAccessible;  // The native accessible    

    /**
     * Downcall to create the native accessible.  This will be used when firing
     * events or when destroying the native accessible.
     * 
     * @param node          the related FX node object.
     * @param provider  the base provider which this pattern provider is chained to.
     */
    public WinAccessibleSelectionProvider(Object node, WinAccessibleBaseProvider provider) {
        super(node);
        nativeAccessible = _createAccessible(provider.getNativeAccessible());
    }
    
    /**
     * Get the native accessible
     * 
     * @return the native accessible
     */
    @Override
    long getNativeAccessible() {
        return nativeAccessible;
    }
    
    // Downcalls
    
    /**
     * Destroy the native accessible
     * 
     */
    @Override
    public void destroyAccessible() {
        _destroyAccessible(nativeAccessible);
    }

    ////////////////////////////////////
    //
    // Start of upcalls from native code
    //
    ////////////////////////////////////
    
    // Note:
    //   These upcalls are from a native UIA implementation.  This code translates
    //   the upcalls to the UIA-like implementation used in the JavaFX accessibility 
    //   implementation.
    
    private boolean canSelectMultiple() {
        AccessibleLogger.getLogger().fine("In WinAccessibleSelectionProvider.canSelectMultiple");
        boolean bRet = false;
        if (node instanceof SelectionProvider) {
            bRet = ((SelectionProvider)node).canSelectMultiple() ;
        }
        AccessibleLogger.getLogger().fine("In WinAccessibleSelectionProvider.canSelectMultiple" + bRet);
        return bRet ;
    }

    private long[] getSelection() {
        AccessibleLogger.getLogger().fine("In WinAccessibleSelectionProvider.getSelection");        
        long[] selection = null;
        if (node instanceof SelectionProvider) {
            Object[] selectedItems = ((SelectionProvider)node).getSelection();
            int size = selectedItems.length;
            selection = new long[size];
            for (int idx=0; idx