/**
* Checks whether mouse event's button and modifiers match a shortcut configured in active keymap
* for given action id. Only shortcuts having click count of 1 can be matched, mouse event's click
* count is ignored.
*/
public static boolean isMouseActionEvent(@NotNull MouseEvent e, @NotNull String actionId) {
KeymapManager keymapManager = KeymapManager.getInstance();
if (keymapManager == null) {
return false;
}
Keymap keymap = keymapManager.getActiveKeymap();
if (keymap == null) {
return false;
}
int button = MouseShortcut.getButton(e);
int modifiers = e.getModifiersEx();
if (button == MouseEvent.NOBUTTON && e.getID() == MouseEvent.MOUSE_DRAGGED) {
// mouse drag events don't have button field set due to some reason
if ((modifiers & InputEvent.BUTTON1_DOWN_MASK) != 0) {
button = MouseEvent.BUTTON1;
} else if ((modifiers & InputEvent.BUTTON2_DOWN_MASK) != 0) {
button = MouseEvent.BUTTON2;
}
}
String[] actionIds = keymap.getActionIds(new MouseShortcut(button, modifiers, 1));
if (actionIds == null) {
return false;
}
for (String id : actionIds) {
if (actionId.equals(id)) {
return true;
}
}
return false;
}
public static boolean isEmacsKeymap(@Nullable Keymap keymap) {
for (; keymap != null; keymap = keymap.getParent()) {
if ("Emacs".equalsIgnoreCase(keymap.getName())) {
return true;
}
}
return false;
}
// ------------------------------------------------------------------
// from Java Swing 1.2 Orielly - Robert Eckstein
// ------------------------------------------------------------------
protected JTextComponent updateKeymapForWord(JTextComponent textComp) {
// create a new child keymap
Keymap map = JTextComponent.addKeymap("NslmMap", textComp.getKeymap());
// define the keystrokeds to be added
KeyStroke next = KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, InputEvent.CTRL_MASK, false);
// add the new mappings used DefaultEditorKit actions
map.addActionForKeyStroke(next, getAction(DefaultEditorKit.nextWordAction));
KeyStroke prev = KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(prev, getAction(DefaultEditorKit.previousWordAction));
KeyStroke selNext =
KeyStroke.getKeyStroke(
KeyEvent.VK_RIGHT, InputEvent.CTRL_MASK | InputEvent.SHIFT_MASK, false);
map.addActionForKeyStroke(selNext, getAction(DefaultEditorKit.selectionNextWordAction));
KeyStroke selPrev =
KeyStroke.getKeyStroke(
KeyEvent.VK_LEFT, InputEvent.CTRL_MASK | InputEvent.SHIFT_MASK, false);
map.addActionForKeyStroke(selPrev, getAction(DefaultEditorKit.selectionPreviousWordAction));
KeyStroke find = KeyStroke.getKeyStroke(KeyEvent.VK_F, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(find, getAction("find"));
KeyStroke findAgain = KeyStroke.getKeyStroke(KeyEvent.VK_G, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(findAgain, getAction("findAgain"));
// set the keymap for the text component
textComp.setKeymap(map);
return (textComp);
} // end updateKeymapForWord
/**
* Checks that one of the mouse shortcuts assigned to the provided action has the same modifiers
* as provided
*/
public static boolean matchActionMouseShortcutsModifiers(
final Keymap activeKeymap,
@JdkConstants.InputEventMask int modifiers,
final String actionId) {
final MouseShortcut syntheticShortcut = new MouseShortcut(MouseEvent.BUTTON1, modifiers, 1);
for (Shortcut shortcut : activeKeymap.getShortcuts(actionId)) {
if (shortcut instanceof MouseShortcut) {
final MouseShortcut mouseShortcut = (MouseShortcut) shortcut;
if (mouseShortcut.getModifiers() == syntheticShortcut.getModifiers()) {
return true;
}
}
}
return false;
}
// ------------------------------------------------------------------
// from Java Swing 1.2 Orielly - Robert Eckstein
// ------------------------------------------------------------------
protected JTextComponent updateKeymapForEmacs(JTextComponent textComp) {
// note: it does not look like a key can do more than one action
// thus no modes.
// todo: not all of these are correct. such as ctrlK
// todo: add saving - ctrlXS
// create a new child keymap
Keymap map = JTextComponent.addKeymap("NslmMap", textComp.getKeymap());
KeyStroke selNext =
KeyStroke.getKeyStroke(
KeyEvent.VK_RIGHT, InputEvent.CTRL_MASK | InputEvent.SHIFT_MASK, false);
map.addActionForKeyStroke(selNext, getAction(DefaultEditorKit.selectionNextWordAction));
KeyStroke selPrev =
KeyStroke.getKeyStroke(
KeyEvent.VK_LEFT, InputEvent.CTRL_MASK | InputEvent.SHIFT_MASK, false);
map.addActionForKeyStroke(selPrev, getAction(DefaultEditorKit.selectionPreviousWordAction));
KeyStroke next = KeyStroke.getKeyStroke(KeyEvent.VK_F, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(next, getAction(DefaultEditorKit.forwardAction));
KeyStroke prev = KeyStroke.getKeyStroke(KeyEvent.VK_B, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(prev, getAction(DefaultEditorKit.backwardAction));
KeyStroke selectionDown = KeyStroke.getKeyStroke(KeyEvent.VK_N, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(selectionDown, getAction(DefaultEditorKit.downAction));
KeyStroke selectionUp = KeyStroke.getKeyStroke(KeyEvent.VK_P, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(selectionUp, getAction(DefaultEditorKit.upAction));
KeyStroke pageDown = KeyStroke.getKeyStroke(KeyEvent.VK_V, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(pageDown, getAction(DefaultEditorKit.pageDownAction));
KeyStroke pageUp = KeyStroke.getKeyStroke(KeyEvent.VK_U, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(pageUp, getAction(DefaultEditorKit.pageUpAction));
KeyStroke endDoc =
KeyStroke.getKeyStroke(
KeyEvent.VK_GREATER, InputEvent.META_MASK | InputEvent.SHIFT_MASK, false);
map.addActionForKeyStroke(endDoc, getAction(DefaultEditorKit.endAction));
KeyStroke beginingDoc =
KeyStroke.getKeyStroke(
KeyEvent.VK_LESS, InputEvent.META_MASK | InputEvent.SHIFT_MASK, false);
map.addActionForKeyStroke(beginingDoc, getAction(DefaultEditorKit.beginAction));
// the VK_SPACE and VK_W not working as in Emacs - space deleting
// KeyStroke
// selectionStart=KeyStroke.getKeyStroke(KeyEvent.VK_SPACE,InputEvent.CTRL_MASK,false);
// map.addActionForKeyStroke(selectionStart,getAction(DefaultEditorKit.selectionForwardAction));
// //todo: setCharPosAction
// this is doing nothing because only one char to can be assigned to cut
// KeyStroke cut1=KeyStroke.getKeyStroke(KeyEvent.VK_W,InputEvent.CTRL_MASK,false);
// map.addActionForKeyStroke(cut1,getAction(DefaultEditorKit.cutAction));
// if we do save as XS, this will have to change
KeyStroke cut = KeyStroke.getKeyStroke(KeyEvent.VK_X, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(cut, getAction(DefaultEditorKit.cutAction));
KeyStroke paste = KeyStroke.getKeyStroke(KeyEvent.VK_Y, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(paste, getAction(DefaultEditorKit.pasteAction));
KeyStroke moveToEndLine = KeyStroke.getKeyStroke(KeyEvent.VK_E, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(moveToEndLine, getAction(DefaultEditorKit.endLineAction));
// not emacs like
KeyStroke selWord = KeyStroke.getKeyStroke(KeyEvent.VK_T, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(selWord, getAction(DefaultEditorKit.selectWordAction));
KeyStroke selLine = KeyStroke.getKeyStroke(KeyEvent.VK_K, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(selLine, getAction(DefaultEditorKit.selectLineAction));
KeyStroke delNext = KeyStroke.getKeyStroke(KeyEvent.VK_D, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(delNext, getAction(DefaultEditorKit.deleteNextCharAction));
KeyStroke insertLine = KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(insertLine, getAction(DefaultEditorKit.insertBreakAction));
KeyStroke searchBackward = KeyStroke.getKeyStroke(KeyEvent.VK_R, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(searchBackward, getAction("findAgain"));
KeyStroke searchForward = KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_MASK, false);
map.addActionForKeyStroke(searchForward, getAction("findAgain"));
// set the keymap for the text component
textComp.setKeymap(map);
return (textComp);
} // end updateKeymapForEmacs