public void onMouseDown(MouseDownEvent event) {
setMouseDown(true);
updateCSS();
DOM.setCapture(view.getElement());
dragStartX = event.getX();
dragStartY = event.getY();
event.preventDefault();
}
public void onMouseDown(@Nonnull final MouseDownEvent event) {
dragging = true;
// capturing the mouse to the dragged widget.
DOM.setCapture(container.getElement());
startY = event.getY();
ClientLog.log("DOWN", null);
event.stopPropagation();
event.preventDefault();
originalStyle = widget.getElement().getAttribute("style");
}
private void handleRowClick(MouseDownEvent event, TableRowElement row) {
int modifiers = KeyboardShortcut.getModifierValue(event.getNativeEvent());
modifiers &= ~KeyboardShortcut.ALT; // ALT has no effect
if (!allowMultiSelect_) modifiers = KeyboardShortcut.NONE;
// We'll treat Ctrl and Meta as equivalent--and normalize to Ctrl.
if (KeyboardShortcut.META == (modifiers & KeyboardShortcut.META))
modifiers |= KeyboardShortcut.CTRL;
modifiers &= ~KeyboardShortcut.META;
if (modifiers == KeyboardShortcut.NONE) {
// Select only the target row
clearSelection();
setSelected(row, true);
} else if (modifiers == KeyboardShortcut.CTRL) {
// Toggle the target row
setSelected(row, !isSelected(row));
} else {
// SHIFT or CTRL+SHIFT
int target = row.getRowIndex();
Integer min = null;
Integer max = null;
for (TableRowElement selectedRow : selectedRows_) {
if (min == null) min = selectedRow.getRowIndex();
max = selectedRow.getRowIndex();
}
int offset; // selection offset
int length; // selection length
if (min == null) {
// Nothing is selected
offset = target;
length = 1;
} else if (target < min) {
// Select target..max
offset = target;
length = max - target + 1;
} else if (target > max) {
offset = min;
length = target - min + 1;
} else {
// target is in between min and max
if (modifiers == (KeyboardShortcut.CTRL | KeyboardShortcut.SHIFT)) {
offset = min;
length = target - min + 1;
} else {
offset = target;
length = 1;
}
}
clearSelection();
if (length > 0) {
setSelectedPhysical(offset, length, true);
}
}
}
NodePresenter(VGraphExplorer parent, NodeProxy model) {
this.parent = parent;
this.model = model;
graph = parent.getGraph();
view.setTitle(model.getId());
Style style = view.getElement().getStyle();
style.setLeft(model.getX(), Unit.PX);
style.setTop(model.getY(), Unit.PX);
view.addDomHandler(this, MouseDownEvent.getType());
view.addDomHandler(this, MouseMoveEvent.getType());
view.addDomHandler(this, MouseUpEvent.getType());
parent.add(view);
}
@Override
public HandlerRegistration addMouseDownHandler(final MouseDownHandler handler) {
return handlers.addHandler(MouseDownEvent.getType(), handler);
}
public HandlerRegistration addMouseDownHandler(MouseDownHandler handler) {
return addDomHandler(handler, MouseDownEvent.getType());
}
