public static CellEditor createPropertyEditor(
final IServiceLocator serviceLocator,
Composite parent,
DBPPropertySource source,
DBPPropertyDescriptor property) {
if (source == null) {
return null;
}
final Object object = source.getEditableValue();
if (!property.isEditable(object)) {
return null;
}
CellEditor cellEditor = UIUtils.createCellEditor(parent, object, property);
if (cellEditor != null) {
final Control editorControl = cellEditor.getControl();
UIUtils.addFocusTracker(serviceLocator, UIUtils.INLINE_WIDGET_EDITOR_ID, editorControl);
editorControl.addDisposeListener(
new DisposeListener() {
@Override
public void widgetDisposed(DisposeEvent e) {
UIUtils.removeFocusTracker(serviceLocator, editorControl);
}
});
}
return cellEditor;
}
/**
* Install a copy popup menu on the specified control and activate the copy handler for the
* control when the control has focus. The handler will be deactivated when the control is
* disposed.
*
* @param copyable the copyable that will perform the copy
* @param control the control on which to install the menu and handler
*/
public static void activateCopy(ICopyable copyable, final Control control) {
IFocusService fs = PlatformUI.getWorkbench().getService(IFocusService.class);
final IHandlerService hs = PlatformUI.getWorkbench().getService(IHandlerService.class);
new CopyPopup(copyable, control);
if (fs != null && hs != null) {
fs.addFocusTracker(control, CONTROL_ID);
final IHandlerActivation handlerActivation =
hs.activateHandler(
CopyHandler.ID,
new CopyHandler(copyable),
new Expression() {
public EvaluationResult evaluate(IEvaluationContext context) {
return context.getVariable(ISources.ACTIVE_FOCUS_CONTROL_NAME) == control
? EvaluationResult.TRUE
: EvaluationResult.FALSE;
}
public void collectExpressionInfo(final ExpressionInfo info) {
info.addVariableNameAccess(ISources.ACTIVE_FOCUS_CONTROL_NAME);
}
});
control.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
hs.deactivateHandler(handlerActivation);
}
});
}
}
/** Adds validation overlay component to the control. */
private void addValidationOverlay(
final AttributeDescriptor descriptor,
final IAttributeEditor editor,
final Object defaultValue,
final Control label) {
final ControlDecoration decoration = new ControlDecoration(label, SWT.LEFT | SWT.BOTTOM);
decoration.hide();
final FieldDecoration requiredDecoration =
FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_ERROR);
decoration.setImage(requiredDecoration.getImage());
decoration.setDescriptionText("Invalid value");
final IAttributeListener validationListener =
new InvalidStateDecorationListener(decoration, descriptor, defaultValue);
globalEventsProvider.addAttributeListener(validationListener);
editor.addAttributeListener(validationListener);
label.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
globalEventsProvider.removeAttributeListener(validationListener);
editor.removeAttributeListener(validationListener);
decoration.dispose();
}
});
}
/**
* NE: Copied from ContentViewer. We don't want the OpenStrategy hooked in
* StructuredViewer.hookControl otherwise the canvas will take focus since it has a key listener.
* We don't want this included in the window's tab traversal order. Defeating it here is more
* self-contained then setting the tab list on the shell or other parent composite.
*/
protected void hookControl(Control control) {
control.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent event) {
handleDispose(event);
}
});
}
public static void setFontStyle(Control ctrl, int style) {
Font font = UIUtil.setFontStyle(ctrl.getFont(), style);
ctrl.setFont(font);
ctrl.addDisposeListener(
new DisposeListenerWithData<Font>(font) {
public void widgetDisposed(DisposeEvent e) {
data().dispose();
}
});
}
public static void increaseFontSize(Control ctrl, int inc) {
Font font = UIUtil.increaseFontSize(ctrl.getFont(), inc);
ctrl.setFont(font);
ctrl.addDisposeListener(
new DisposeListenerWithData<Font>(font) {
public void widgetDisposed(DisposeEvent e) {
data().dispose();
}
});
}
SelectableMouseTrackListener(Control root) {
this.root = root;
initialBg = root.getBackground();
root.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
SelectableMouseTrackListener.this.root = null;
border = null;
painter = null;
initialBg = null;
}
});
}
public Resizer(Control c, int dir) {
fDirection = dir;
fControl = c;
fLiveResize = !(fControl instanceof Sash);
updateCursor(c, dir);
fControl.addMouseListener(this);
fControl.addMouseMoveListener(this);
fControl.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
fControl = null;
}
});
}
private FocusHandler(Navigable navigable) {
fIterator = new JavaWordIterator();
fNavigable = navigable;
Control control = navigable.getControl();
control.addFocusListener(this);
if (control.isFocusControl()) activate();
control.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
deactivate();
}
});
}
protected IFigure createBlockFigure() {
final BlockFigure figure = new BlockFigure();
ImageDescriptor descriptor = ToolkitImages.get(ToolkitImages.SLIDER_HANDLE);
final Image image = descriptor == null ? null : descriptor.createImage(control.getDisplay());
figure.setImage(image);
figure.setSize(figure.getPreferredSize());
control.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
if (image != null) {
image.dispose();
}
figure.setImage(null);
}
});
return figure;
}
/**
* Sets the control whose position will be managed by this proxy
*
* @param target the control, or null if none
*/
public void setTargetControl(Control target) {
if (this.target != target) {
if (this.target != null) {
for (Control next = control;
next != commonAncestor && next != null;
next = next.getParent()) {
next.removeControlListener(controlListener);
}
commonAncestor = null;
// If we already had a target, detach the dispose listener
// (prevents memory leaks due to listeners)
if (!this.target.isDisposed()) {
this.target.removeDisposeListener(disposeListener);
}
}
if (this.target == null && target != null) {
// If we had previously forced the dummy control invisible, restore its visibility
control.setVisible(visible);
}
this.target = target;
if (target != null) {
commonAncestor = SwtUtil.findCommonAncestor(this.target, control);
for (Control next = control;
next != null && next != commonAncestor;
next = next.getParent()) {
next.addControlListener(controlListener);
}
// Make the new target's visiblity match the visibility of the dummy control
target.setVisible(control.getVisible());
// Add a dispose listener. Ensures that the target is cleared
// if it is ever disposed.
target.addDisposeListener(disposeListener);
} else {
control.setVisible(false);
}
}
}
public static void enableHostEditorKeyBindingsSupport(
final IWorkbenchPartSite partSite, Control control) {
if (!(partSite.getPart() instanceof AbstractTextEditor)) {
return;
}
final boolean[] activated = new boolean[] {false};
control.addFocusListener(
new FocusListener() {
@Override
public void focusGained(FocusEvent e) {
if (!activated[0]) {
UIUtils.enableHostEditorKeyBindings(partSite, false);
activated[0] = true;
}
}
@Override
public void focusLost(FocusEvent e) {
if (activated[0]) {
UIUtils.enableHostEditorKeyBindings(partSite, true);
activated[0] = false;
}
}
});
control.addDisposeListener(
new DisposeListener() {
@Override
public void widgetDisposed(DisposeEvent e) {
if (activated[0]) {
UIUtils.enableHostEditorKeyBindings(partSite, true);
activated[0] = false;
}
}
});
}
public void open() {
if (screenPos == null) screenPos = Display.getDefault().getCursorLocation();
leftScreenPos = screenPos;
popupRight = true;
if (control == null || control.isDisposed()) return;
control.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
dispose();
}
});
final ShellListener shellListener =
new ShellAdapter() {
public void shellClosed(ShellEvent e) {
hideMenu();
}
public void shellDeactivated(ShellEvent e) {
hideMenu();
}
public void shellIconified(ShellEvent e) {
hideMenu();
}
};
control.getShell().addShellListener(shellListener);
ignoreTaskbar = true;
Event event = new Event();
event.data = this;
event.type = SWT.OPEN;
menu.fireMenuEvent(event);
createAndShowWindow();
installMouseHook();
shell.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
if (!control.isDisposed()) control.getShell().removeShellListener(shellListener);
}
});
final Listener mouseDownListener =
new Listener() {
public void handleEvent(Event e) {
if (shell == null || shell.isDisposed()) {
Display.getDefault().removeFilter(SWT.MouseDown, this);
return;
}
if (e.widget == null
|| e.widget.isDisposed()
|| checkMouseDownEvent(((Control) e.widget).toDisplay(e.x, e.y))) {
hideMenu();
}
}
};
Display.getDefault().addFilter(SWT.MouseDown, mouseDownListener);
final Listener keyDownListener =
new Listener() {
public void handleEvent(Event e) {
if (shell == null || shell.isDisposed()) {
Display.getDefault().removeFilter(SWT.KeyDown, this);
e.doit = false;
return;
}
KeyEvent ke = new KeyEvent(e);
if ((ke.keyCode == SWT.ALT) || ke.keyCode == SWT.F10) {
hideMenu();
return;
}
getCurrentMenu().dealAltKeyEvent(ke);
if (ke.keyCode == KEY_RIGHT && trackItemIndex > -1) {
getCurrentMenu().subMenuSelected();
}
if (ke.keyCode == KEY_LEFT && trackItemIndex > -1) {
getCurrentMenu().parentMenuSelected();
}
if (ke.keyCode == KEY_DOWN || ke.keyCode == KEY_UP) {
if (ke.keyCode == KEY_DOWN) getCurrentMenu().downSelected();
else getCurrentMenu().upSelected();
}
if (ke.keyCode == SWT.ESC) {
if (getCurrentMenu().parentMenu == null) getCurrentMenu().hideMenu();
else getCurrentMenu().parentMenuSelected();
}
if (ke.keyCode == SWT.CR) {
getCurrentMenu().handleSelectedEvent();
}
}
};
Display.getDefault().addFilter(SWT.KeyDown, keyDownListener);
shell.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
Display.getDefault().removeFilter(SWT.MouseDown, mouseDownListener);
Display.getDefault().removeFilter(SWT.KeyDown, keyDownListener);
getShell().removeShellListener(shellListener);
}
});
}
