| /* |
| * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. |
| * 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. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.lwawt.macosx; |
| |
| import java.awt.Component; |
| import java.awt.Point; |
| import java.awt.Rectangle; |
| import java.awt.geom.Rectangle2D; |
| import java.util.concurrent.Callable; |
| |
| import javax.accessibility.Accessible; |
| import javax.accessibility.AccessibleContext; |
| import javax.accessibility.AccessibleEditableText; |
| import javax.accessibility.AccessibleText; |
| import javax.swing.text.Element; |
| import javax.swing.text.JTextComponent; |
| |
| class CAccessibleText { |
| static AccessibleEditableText getAccessibleEditableText(final Accessible a, final Component c) { |
| if (a == null) return null; |
| |
| return CAccessibility.invokeAndWait(new Callable<AccessibleEditableText>() { |
| public AccessibleEditableText call() throws Exception { |
| final AccessibleContext ac = a.getAccessibleContext(); |
| if (ac == null) return null; |
| return ac.getAccessibleEditableText(); |
| } |
| }, c); |
| } |
| |
| static String getSelectedText(final Accessible a, final Component c) { |
| if (a == null) return null; |
| |
| return CAccessibility.invokeAndWait(new Callable<String>() { |
| public String call() throws Exception { |
| final AccessibleContext ac = a.getAccessibleContext(); |
| if (ac == null) return null; |
| |
| final AccessibleText at = ac.getAccessibleText(); |
| if (at == null) return null; |
| |
| return at.getSelectedText(); |
| } |
| }, c); |
| } |
| |
| // replace the currently selected text with newText |
| static void setSelectedText(final Accessible a, final Component c, final String newText) { |
| if (a == null) return; |
| |
| CAccessibility.invokeLater(new Runnable() { |
| public void run() { |
| final AccessibleContext ac = a.getAccessibleContext(); |
| if (ac == null) return; |
| |
| final AccessibleEditableText aet = ac.getAccessibleEditableText(); |
| if (aet == null) return; |
| |
| final int selectionStart = aet.getSelectionStart(); |
| final int selectionEnd = aet.getSelectionEnd(); |
| aet.replaceText(selectionStart, selectionEnd, newText); |
| } |
| }, c); |
| } |
| |
| static void setSelectedTextRange(final Accessible a, final Component c, final int startIndex, final int endIndex) { |
| if (a == null) return; |
| |
| CAccessibility.invokeLater(new Runnable() { |
| public void run() { |
| final AccessibleContext ac = a.getAccessibleContext(); |
| if (ac == null) return; |
| |
| final AccessibleEditableText aet = ac.getAccessibleEditableText(); |
| if (aet == null) return; |
| |
| final boolean validRange = (startIndex >= 0) && (endIndex >= startIndex) && (endIndex <= aet.getCharCount()); |
| if (!validRange) return; |
| |
| aet.selectText(startIndex, endIndex); |
| } |
| }, c); |
| } |
| |
| static String getTextRange(final AccessibleEditableText aet, final int start, final int stop, final Component c) { |
| if (aet == null) return null; |
| |
| return CAccessibility.invokeAndWait(new Callable<String>() { |
| public String call() throws Exception { |
| return aet.getTextRange(start, stop); |
| } |
| }, c); |
| } |
| |
| static int getCharacterIndexAtPosition(final Accessible a, final Component c, final int x, final int y) { |
| if (a == null) return 0; |
| |
| return CAccessibility.invokeAndWait(new Callable<Integer>() { |
| public Integer call() throws Exception { |
| final AccessibleContext ac = a.getAccessibleContext(); |
| if (ac == null) return null; |
| final AccessibleText at = ac.getAccessibleText(); |
| if (at == null) return null; |
| // (x, y) passed in as java screen coords - (0, 0) at upper-left corner of screen. |
| // Convert to java component-local coords |
| final Point componentLocation = ac.getAccessibleComponent().getLocationOnScreen(); |
| final int localX = x - (int)componentLocation.getX(); |
| final int localY = y - (int)componentLocation.getY(); |
| |
| return at.getIndexAtPoint(new Point(localX, localY)); |
| } |
| }, c); |
| } |
| |
| static int[] getSelectedTextRange(final Accessible a, final Component c) { |
| if (a == null) return new int[2]; |
| |
| return CAccessibility.invokeAndWait(new Callable<int[]>() { |
| public int[] call() { |
| final AccessibleContext ac = a.getAccessibleContext(); |
| if (ac == null) return new int[2]; |
| |
| final AccessibleText at = ac.getAccessibleText(); |
| if (at == null) return new int[2]; |
| |
| final int[] ret = new int[2]; |
| ret[0] = at.getSelectionStart(); |
| ret[1] = at.getSelectionEnd(); |
| return ret; |
| } |
| }, c); |
| } |
| |
| |
| static int[] getVisibleCharacterRange(final Accessible a, final Component c) { |
| if (a == null) return null; |
| return CAccessibility.invokeAndWait(new Callable<int[]>() { |
| public int[] call() { |
| return getVisibleCharacterRange(a); |
| } |
| }, c); |
| } |
| |
| static int getLineNumberForIndex(final Accessible a, final Component c, final int index) { |
| if (a == null) return 0; |
| return CAccessibility.invokeAndWait(new Callable<Integer>() { |
| public Integer call() { |
| return Integer.valueOf(getLineNumberForIndex(a, index)); |
| } |
| }, c); |
| } |
| |
| static int getLineNumberForInsertionPoint(final Accessible a, final Component c) { |
| if (a == null) return 0; |
| return CAccessibility.invokeAndWait(new Callable<Integer>() { |
| public Integer call() { |
| return Integer.valueOf(getLineNumberForInsertionPoint(a)); |
| } |
| }, c); |
| } |
| |
| static int[] getRangeForLine(final Accessible a, final Component c, final int line) { |
| if (a == null) return null; |
| return CAccessibility.invokeAndWait(new Callable<int[]>() { |
| public int[] call() { |
| return getRangeForLine(a, line); |
| } |
| }, c); |
| } |
| |
| static int[] getRangeForIndex(final Accessible a, final Component c, final int index) { |
| if (a == null) return new int[2]; |
| |
| return CAccessibility.invokeAndWait(new Callable<int[]>() { |
| public int[] call() { |
| final AccessibleContext ac = a.getAccessibleContext(); |
| if (ac == null) return new int[2]; |
| |
| final AccessibleEditableText aet = ac.getAccessibleEditableText(); |
| if (aet == null) return new int[2]; |
| |
| final int charCount = aet.getCharCount(); |
| if (index >= charCount) return new int[2]; |
| |
| final String foundWord = aet.getAtIndex(AccessibleText.WORD, index); |
| final int foundWordLength = foundWord.length(); |
| final String wholeString = aet.getTextRange(0, charCount - 1); |
| |
| // now we need to find the index of the foundWord in wholeString. It's somewhere pretty close to the passed-in index, |
| // but we don't know if it's before or after the passed-in index. So, look behind and ahead of the passed-in index |
| int foundWordIndex = -1; |
| int offset = 0; |
| while ((foundWordIndex == -1) && (offset < foundWordLength)) { |
| if (wholeString.regionMatches(true, index - offset, foundWord, 0, foundWordLength)) { |
| // is the index of foundWord to the left of the passed-in index? |
| foundWordIndex = index - offset; |
| } |
| if (wholeString.regionMatches(true, index + offset, foundWord, 0, foundWordLength)) { |
| // is the index of the foundWord to the right of the passed-in index? |
| foundWordIndex = index + offset; |
| } |
| offset++; |
| } |
| |
| final int[] ret = new int[2]; |
| ret[0] = foundWordIndex; |
| ret[1] = foundWordIndex + foundWordLength; |
| return ret; |
| } |
| }, c); |
| } |
| |
| // cmcnote: this method does not currently work for JLabels. JLabels, for some reason unbeknownst to me, do not |
| // return a value from getAccessibleText. According to the javadocs, AccessibleJLabels implement AccessibleText, |
| // so this doesn't really make sense. Perhaps a sun bug? Investigate. We currently get the text value out of labels |
| // via "getAccessibleName". This just returns a String - so we don't know it's position, etc, as we do for |
| // AccessibleText. |
| static double[] getBoundsForRange(final Accessible a, final Component c, final int location, final int length) { |
| final double[] ret = new double[4]; |
| if (a == null) return ret; |
| |
| return CAccessibility.invokeAndWait(new Callable<double[]>() { |
| public double[] call() throws Exception { |
| final AccessibleContext ac = a.getAccessibleContext(); |
| if (ac == null) return ret; |
| |
| final AccessibleText at = ac.getAccessibleText(); |
| if (at == null) { |
| ac.getAccessibleName(); |
| ac.getAccessibleEditableText(); |
| return ret; |
| } |
| |
| final Rectangle2D boundsStart = at.getCharacterBounds(location); |
| final Rectangle2D boundsEnd = at.getCharacterBounds(location + length - 1); |
| if (boundsEnd == null || boundsStart == null) return ret; |
| final Rectangle2D boundsUnion = boundsStart.createUnion(boundsEnd); |
| if (boundsUnion.isEmpty()) return ret; |
| |
| final double localX = boundsUnion.getX(); |
| final double localY = boundsUnion.getY(); |
| |
| final Point componentLocation = ac.getAccessibleComponent().getLocationOnScreen(); |
| final double screenX = componentLocation.getX() + localX; |
| final double screenY = componentLocation.getY() + localY; |
| |
| ret[0] = screenX; |
| ret[1] = screenY; // in java screen coords (from top-left corner of screen) |
| ret[2] = boundsUnion.getWidth(); |
| ret[3] = boundsUnion.getHeight(); |
| return ret; |
| } |
| }, c); |
| } |
| |
| static String getStringForRange(final Accessible a, final Component c, final int location, final int length) { |
| if (a == null) return null; |
| return CAccessibility.invokeAndWait(new Callable<String>() { |
| public String call() throws Exception { |
| final AccessibleContext ac = a.getAccessibleContext(); |
| if (ac == null) return null; |
| |
| final AccessibleEditableText aet = ac.getAccessibleEditableText(); |
| if (aet == null) return null; |
| |
| return aet.getTextRange(location, location + length); |
| } |
| }, c); |
| } |
| |
| static int[] getVisibleCharacterRange(final Accessible a) { |
| final Accessible sa = CAccessible.getSwingAccessible(a); |
| if (!(sa instanceof JTextComponent)) return null; |
| |
| final JTextComponent jc = (JTextComponent) sa; |
| final Rectangle rect = jc.getVisibleRect(); |
| final Point topLeft = new Point(rect.x, rect.y); |
| final Point topRight = new Point(rect.x + rect.width, rect.y); |
| final Point bottomLeft = new Point(rect.x, rect.y + rect.height); |
| final Point bottomRight = new Point(rect.x + rect.width, rect.y + rect.height); |
| |
| int start = Math.min(jc.viewToModel(topLeft), jc.viewToModel(topRight)); |
| int end = Math.max(jc.viewToModel(bottomLeft), jc.viewToModel(bottomRight)); |
| if (start < 0) start = 0; |
| if (end < 0) end = 0; |
| return new int[] { start, end }; |
| } |
| |
| static int getLineNumberForIndex(final Accessible a, int index) { |
| final Accessible sa = CAccessible.getSwingAccessible(a); |
| if (!(sa instanceof JTextComponent)) return -1; |
| |
| final JTextComponent jc = (JTextComponent) sa; |
| final Element root = jc.getDocument().getDefaultRootElement(); |
| |
| // treat -1 special, returns the current caret position |
| if (index == -1) index = jc.getCaretPosition(); |
| |
| // Determine line number (can be -1) |
| return root.getElementIndex(index); |
| } |
| |
| static int getLineNumberForInsertionPoint(final Accessible a) { |
| return getLineNumberForIndex(a, -1); // uses special -1 for above |
| } |
| |
| static int[] getRangeForLine(final Accessible a, final int lineIndex) { |
| Accessible sa = CAccessible.getSwingAccessible(a); |
| if (!(sa instanceof JTextComponent)) return null; |
| |
| final JTextComponent jc = (JTextComponent) sa; |
| final Element root = jc.getDocument().getDefaultRootElement(); |
| final Element line = root.getElement(lineIndex); |
| if (line == null) return null; |
| |
| return new int[] { line.getStartOffset(), line.getEndOffset() }; |
| } |
| } |