/**
* Checks if data can be updated.
*
* @param n node instance
* @param no disallowed node types
* @return result of check
*/
static boolean updatable(final Nodes n, final int... no) {
if (n == null || (no.length == 0 ? n.size() < 1 : n.size() != 1)) return false;
final int k = n.data.kind(n.pres[0]);
for (final int i : no) if (k == i) return false;
return true;
}
@Override
public void execute(final GUI gui) {
final Context ctx = gui.context;
Nodes marked = ctx.marked;
if (marked.size() == 0) {
final int pre = gui.context.focused;
if (pre == -1) return;
marked = new Nodes(pre, ctx.data());
}
gui.notify.context(marked, false, null);
}
@Override
public void execute(final GUI gui) {
final StringBuilder sb = new StringBuilder();
final Nodes n = gui.context.copied;
for (int i = 0; i < n.size(); ++i) {
if (i > 0) sb.append(',');
sb.append(openPre(n, i));
}
gui.context.copied = null;
gui.execute(new XQuery("insert nodes (" + sb + ") into " + openPre(gui.context.marked, 0)));
}
@Override
public void execute(final GUI gui) {
if (!BaseXDialog.confirm(gui, DELETE_NODES)) return;
final StringBuilder sb = new StringBuilder();
final Nodes n = gui.context.marked;
for (int i = 0; i < n.size(); ++i) {
if (i > 0) sb.append(',');
sb.append(openPre(n, i));
}
gui.context.marked = new Nodes(n.data);
gui.context.copied = null;
gui.context.focused = -1;
gui.execute(new XQuery("delete nodes (" + sb + ')'));
}
@Override
public void refresh(final GUI gui, final AbstractButton b) {
final Nodes marked = gui.context.marked;
b.setEnabled(marked != null && marked.size() != 0);
}
@Override
public void refresh(final GUI gui, final AbstractButton b) {
// disallow copy of empty node set or root node
final Nodes marked = gui.context.marked;
b.setEnabled(marked != null && marked.size() != 0);
}