diff --git a/app/src/processing/app/tools/MenuScroller.java b/app/src/processing/app/tools/MenuScroller.java index 3523ec7ceca..9e9aacbcafd 100644 --- a/app/src/processing/app/tools/MenuScroller.java +++ b/app/src/processing/app/tools/MenuScroller.java @@ -3,6 +3,8 @@ */ package processing.app.tools; +import processing.app.PreferencesData; + import javax.swing.*; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; @@ -567,6 +569,43 @@ public MenuScrollTimer(final int increment, int interval) { public void actionPerformed(ActionEvent e) { firstIndex += increment * accelerator; refreshMenu(); + if (PreferencesData.getBoolean("ide.accessible")) { + // If the user has chosen to use accessibility features, it means that they are using a screen reader + // to assist them in development of their project. This scroller is very unfriendly toward screen readers + // because it does not tell the user that it is scrolling through the board options, and it does not read + // the name of the boards as they scroll by. It is possible that the desired board will never become + // accessible. + // Because this scroller is quite nice for the sighted user, the idea here is to continue to use the + // scroller, but to fool it into scrolling one item at a time for accessible features users so that the + // screen readers work well, too. + // It's not the prettiest of code, but it works. + String itemClassName; + int keyEvent; + + // The blind user likely used an arrow key to get to the scroller. Determine which arrow key + // so we can send an event for the opposite arrow key. This fools the scroller into scrolling + // a single item. Get the class name of the new item while we're here + if (increment > 0) { + itemClassName = menuItems[firstIndex + scrollCount - 1].getClass().getName(); + keyEvent = KeyEvent.VK_UP; + } + else { + itemClassName = menuItems[firstIndex].getClass().getName(); + keyEvent = KeyEvent.VK_DOWN; + } + + // Use the class name to check if the next item is a separator. If it is, just let it scroll on like + // normal, otherwise move the cursor back with the opposite key event to the new item so that item is read + // by a screen reader and the user can use their arrow keys to navigate the list one item at a time + if (!itemClassName.equals(JSeparator.class.getName()) ) { + KeyboardFocusManager manager = KeyboardFocusManager.getCurrentKeyboardFocusManager(); + Component comp = manager.getFocusOwner(); + KeyEvent event = new KeyEvent(comp, + KeyEvent.KEY_PRESSED, System.currentTimeMillis(), 0, + keyEvent, KeyEvent.CHAR_UNDEFINED); + comp.dispatchEvent(event); + } + } } }); }